Sample records for terrestrial ecosystem science

  1. Terrestrial & Subsurface Ecosystems | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    cycle and ecosystem biogeochemistry and inform biogeochemistry components of Earth System Models. Theme Leads Instruments Science Highlights Publications Projects Leads Nancy...

  2. Antarctic terrestrial ecosystems

    SciTech Connect (OSTI)

    Walton, D.W.H.

    1987-01-01T23:59:59.000Z

    The Maritime and Continental Antarctic terrestrial ecosystems are considered in the context of environmental impacts - habitat destruction, alien introductions, and pollution. Four types of pollution are considered: nutrients, radionuclides, inert materials, and noxious chemicals. Their ability to recover from perturbation is discussed in the light of present scientific knowledge, and the methods used to control impacts are reviewed. It is concluded that techniques of waste disposal are still inadequate, adequate training in environmental and conservation principles for Antarctic personnel in many countries is lacking, and scientific investigations may be a much more serious threat than tourism to the integrity of these ecosystems. Some priorities crucial to future management are suggested.

  3. EMSL - Terrestrial & Subsurface Ecosystems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    cycle and ecosystem biogeochemistry and inform biogeochemistry components of Earth System Models. en Soil Composition http:www.emsl.pnl.govemslwebnewssoil-composition

  4. Terrestrial and Subsurface Ecosystems Postdoctoral Appointment...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    "seeks to improve the representation of terrestrial ecosystem processes in Earth system models thereby, improving the quality of climate model projections and providing the...

  5. Terrestrial Climate Change and Ecosystem Response Recorded in...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Terrestrial Climate Change and Ecosystem Response Recorded in Lake Sediments and Related Deposits Reconstruction of past terrestrial climate and ecosystem response relies on...

  6. Ecosystem Science | Clean Energy | ORNL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ecosystem Science SHARE Ecosystem Science Project the fate and function of ecosystems as they respond to a variety of stresses, ranging from contamination to climate change to...

  7. Center for Research on Enhancing Carbon Sequestration in Terrestrial Ecosystems

    E-Print Network [OSTI]

    #12;Center for Research on Enhancing Carbon Sequestration in Terrestrial Ecosystems Personnel. Blaine Metting #12;vii Abstract The Center for Research on Enhancing Carbon Sequestration in Terrestrial needed to evaluate the feasibility of environmentally sound strategies for enhancing carbon sequestration

  8. Graduate studies Ecosystem Science

    E-Print Network [OSTI]

    Graduate studies in Ecosystem Science and Management Ph.D. M.S. M.Agr. or Natural Resources Development MNRD Department of Ecosystem Science and Management College of Agriculture and Life Sciences. The thesisbased Master of Science and Ph.D. degrees are designed for research or academic careers

  9. Warming, eutrophication, and predator loss amplify subsidies between aquatic and terrestrial ecosystems

    E-Print Network [OSTI]

    Palen, Wendy J.

    , Canada, Department of Forest Sciences, University of British Columbia, Vancouver, BC V6T 1Z4, Canada predators on the flux of biomass between aquatic and terrestrial ecosystems. We demonstrated that predatory., 2009), and also become detri- tus inputs that supply carbon and nitrogen to terrestrial plants (Gratton

  10. CHAPTER TWELVE Effects of Pathogens on Terrestrial Ecosystem Function

    E-Print Network [OSTI]

    Eviner, Valerie

    -1-- 0-- +1-- -1-- 0-- +1-- CHAPTER TWELVE Effects of Pathogens on Terrestrial Ecosystem Function. A more limited set of studies suggests that pathogens can alter a wide range of ecosystem functions in terres- trial systems; however, we are lacking a framework to predict the type and magnitude of ecosystem

  11. Eutrophication: impacts of excess nutrient inputs on freshwater, marine, and terrestrial ecosystems

    E-Print Network [OSTI]

    Minnesota, University of

    Eutrophication: impacts of excess nutrient inputs on freshwater, marine, and terrestrial ecosystems enrichment, or eutrophication, can lead to highly undesirable changes in ecosystem structure and function eutrophication in freshwater, marine, and terrestrial ecosystems. We present two brief case studies (one

  12. Carbon dynamics of terrestrial ecosystems on the Tibetan Plateau

    E-Print Network [OSTI]

    Xiao, Jingfeng

    RESEARCH PAPER Carbon dynamics of terrestrial ecosystems on the Tibetan Plateau during the 20th tundra to evergreen tropics. Its soils are dominated by permafrost and are rich in organic carbon. Its, the carbon dynamics of the Tibetan Plateau have not been well quantified under changes of climate and per

  13. Carbon Sequestration in Terrestrial Ecosystems (CSiTE) PRINCIPAL INVESTIGATOR: Stan D. Wullschleger

    E-Print Network [OSTI]

    Carbon Sequestration in Terrestrial Ecosystems (CSiTE) PRINCIPAL INVESTIGATOR: Stan D. Wullschleger://csite.eds.ornl.gov PROJECT DESCRIPTION The Carbon Sequestration in Terrestrial Ecosystems (CSiTE) project conducts research of switchgrass growing in the field. #12;Carbon Sequestration in Terrestrial Ecosystems (CSiTE) tion of inputs

  14. Using Ant Communities For Rapid Assessment Of Terrestrial Ecosystem Health

    SciTech Connect (OSTI)

    Wike, L

    2005-06-01T23:59:59.000Z

    Measurement of ecosystem health is a very important but often difficult and sometimes fractious topic for applied ecologists. It is important because it can provide information about effects of various external influences like chemical, nuclear, and physical disturbance, and invasive species. Ecosystem health is also a measure of the rate or trajectory of degradation or recovery of systems that are currently suffering impact or those where restoration or remediation have taken place. Further, ecosystem health is the single best indicator of the quality of long term environmental stewardship because it not only provides a baseline condition, but also the means for future comparison and evaluation. Ecosystem health is difficult to measure because there are a nearly infinite number of variables and uncertainty as to which suites of variables are truly indicative of ecosystem condition. It would be impossible and prohibitively expensive to measure all those variables, or even all the ones that were certain to be valid indicators. Measurement of ecosystem health can also be a fractious topic for applied ecologists because there are a myriad of opinions as to which variables are the most important, most easily measured, most robust, and so forth. What is required is an integrative means of evaluating ecosystem health. All ecosystems are dynamic and undergo change either stochastically, intrinsically, or in response to external influences. The basic assumption about change induced by exogenous antropogenic influences is that it is directional and measurable. Historically measurements of surrogate parameters have been used in an attempt to quantify these changes, for example extensive water chemistry data in aquatic systems. This was the case until the 1980's when the Index of Biotic Integrity (IBI) (Karr et al. 1986), was developed. This system collects an array of metrics and fish community data within a stream ecosystem and develops a score or rating for the relative health of the ecosystem. The IBI, though originally for Midwestern streams, has been successfully adapted to other ecoregions and taxa (macroinvertebrates, Lombard and Goldstein, 2004) and has become an important tool for scientists and regulatory agencies alike in determining health of stream ecosystems. The IBI is a specific type of a larger group of methods and procedures referred to as Rapid Bioassessment (RBA). These protocols have the advantage of directly measuring the organisms affected by system perturbations, thus providing an integrated evaluation of system health because the organisms themselves integrate all aspects of their environment and its condition. In addition to the IBI, the RBA concept has also been applied to seep wetlands (Paller et al. 2005) and terrestrial systems (O'Connell et al. 1998, Kremen et al. 1993, Rodriguez et al. 1998, Rosenberg et al. 1986). Terrestrial RBA methods have lagged somewhat behind those for aquatic systems because terrestrial systems are less distinctly defined and seem to have a less universal distribution of an all-inclusive taxon, such as fish in the IBI, upon which to base an RBA. In the last decade, primarily in Australia, extensive development of an RBA using ant communities has shown great promise. Ants have the same advantage for terrestrial RBAs that fish do for aquatic systems in that they are an essential and ubiquitous component of virtually all terrestrial ecosystems. They occupy a broad range of niches, functional groups, and trophic levels and they possess one very important characteristic that makes them ideal for RBA because, similar to the fishes, there is a wide range of tolerance to conditions within the larger taxa. Within ant communities there are certain groups, genera, or species that may be very robust and abundant under even the harshest impacts. There are also taxa that are very sensitive to disturbance and change and their presence or absence is also indicative of the local conditions. Also, as with the aquatic RBAs using macroinvertebrates, ants have a wide variety of functional foragi

  15. Responses of terrestrial ecosystems and carbon budgets to current and future environmental

    E-Print Network [OSTI]

    Moorcroft, Paul R.

    to a wide range of environmental variations. Photosynthesis is a nonlinear function of solar radiationResponses of terrestrial ecosystems and carbon budgets to current and future environmental

  16. 23F.S. Chapin, III et al., Principles of Terrestrial Ecosystem Ecology, DOI 10.1007/978-1-4419-9504-9_2, Springer Science+Business Media, LLC 2011

    E-Print Network [OSTI]

    Hansen, Andrew J.

    ;24 2 Earth's Climate System temperature. Because it is hot (6,000°C), the sun emits most energy as high distribution of terrestrial biomes. This chapter provides a general back- ground on the functioning exerts a key control over the function- ing of Earth's ecosystems. Temperature and water availability

  17. Adaptation policies to increase terrestrial ecosystem resilience: potential utility of a multicriteria approach

    SciTech Connect (OSTI)

    de Bremond, Ariane; Engle, Nathan L.

    2014-03-01T23:59:59.000Z

    Climate change is rapidly undermining terrestrial ecosystem resilience and capacity to continue providing their services to the benefit of humanity and nature. Because of the importance of terrestrial ecosystems to human well-being and supporting services, decision makers throughout the world are busy creating policy responses that secure multiple development and conservation objectives- including that of supporting terrestrial ecosystem resilience in the context of climate change. This article aims to advance analyses on climate policy evaluation and planning in the area of terrestrial ecosystem resilience by discussing adaptation policy options within the ecology-economy-social nexus. The paper evaluates these decisions in the realm of terrestrial ecosystem resilience and evaluates the utility of a set of criteria, indicators, and assessment methods, proposed by a new conceptual multi-criteria framework for pro-development climate policy and planning developed by the United Nations Environment Programme. Potential applications of a multicriteria approach to climate policy vis-A -vis terrestrial ecosystems are then explored through two hypothetical case study examples. The paper closes with a brief discussion of the utility of the multi-criteria approach in the context of other climate policy evaluation approaches, considers lessons learned as a result efforts to evaluate climate policy in the realm of terrestrial ecosystems, and reiterates the role of ecosystem resilience in creating sound policies and actions that support the integration of climate change and development goals.

  18. USING ANT COMMUNITIES FOR RAPID ASSESSMENT OF TERRESTRIAL ECOSYSTEM HEALTH

    SciTech Connect (OSTI)

    Wike, L; Doug Martin, D; Michael Paller, M; Eric Nelson, E

    2007-01-12T23:59:59.000Z

    Ecosystem health with its near infinite number of variables is difficult to measure, and there are many opinions as to which variables are most important, most easily measured, and most robust, Bioassessment avoids the controversy of choosing which physical and chemical parameters to measure because it uses responses of a community of organisms that integrate all aspects of the system in question. A variety of bioassessment methods have been successfully applied to aquatic ecosystems using fish and macroinvertebrate communities. Terrestrial biotic index methods are less developed than those for aquatic systems and we are seeking to address this problem here. This study had as its objective to examine the baseline differences in ant communities at different seral stages from clear cut back to mature pine plantation as a precursor to developing a bioassessment protocol. Comparative sampling was conducted at four seral stages; clearcut, 5 year, 15 year and mature pine plantation stands. Soil and vegetation data were collected at each site. All ants collected were preserved in 70% ethyl alcohol and identified to genus. Analysis of the ant data indicates that ants respond strongly to the habitat changes that accompany ecological succession in managed pine forests and that individual genera as well as ant community structure can be used as an indicator of successional change. Ants exhibited relatively high diversity in both early and mature seral stages. High ant diversity in the mature seral stages was likely related to conditions on the forest floor which favored litter dwelling and cool climate specialists.

  19. Utilizing Vertebrates to Understand the Factors that Influence Terrestrial Ecosystem Structure

    E-Print Network [OSTI]

    Redman, Cory

    2012-07-16T23:59:59.000Z

    Debbie J. Thomas Frances Gelwick Head of Department, J. Rick Giardino May 2012 Major Subject: Geology iii ABSTRACT Utilizing Vertebrates to Understand the Factors that Influence Terrestrial Ecosystem Structure. (May...

  20. A Process-based Analysis of Methane Exchanges Between Alaskan Terrestrial Ecosystems and the Atmosphere

    E-Print Network [OSTI]

    Zhuang, Qianlai.

    We developed and used a new version of the Terrestrial Ecosystem Model (TEM) to study how rates of methane (CH4) emissions and consumption in Alaskan soils have changed over the past century in response to observed changes ...

  1. Assessing net ecosystem carbon exchange of U S terrestrial ecosystems by integrating eddy covariance flux measurements and satellite observations

    SciTech Connect (OSTI)

    Zhuang, Qianlai [Purdue University; Law, Beverly E. [Oregon State University; Baldocchi, Dennis [University of California, Berkeley; Ma, Siyan [University of California, Berkeley; Chen, Jiquan [University of Toledo, Toledo, OH; Richardson, Andrew [Harvard University; Melillo, Jerry [Marine Biological Laboratory; Davis, Ken J. [Pennsylvania State University; Hollinger, D. [USDA Forest Service; Wharton, Sonia [University of California, Davis; Falk, Matthias [University of California, Davis; Paw, U. Kyaw Tha [University of California, Davis; Oren, Ram [Duke University; Katulk, Gabriel G. [Duke University; Noormets, Asko [North Carolina State University; Fischer, Marc [Lawrence Berkeley National Laboratory (LBNL); Verma, Shashi [University of Nebraska; Suyker, A. E. [University of Nebraska, Lincoln; Cook, David R. [Argonne National Laboratory (ANL); Sun, G. [USDA Forest Service; McNulty, Steven G. [USDA Forest Service; Wofsy, Steve [Harvard University; Bolstad, Paul V [University of Minnesota; Burns, Sean [University of Colorado, Boulder; Monson, Russell K. [University of Colorado, Boulder; Curtis, Peter [Ohio State University, The, Columbus; Drake, Bert G. [Smithsonian Environmental Research Center, Edgewater, MD; Foster, David R. [Harvard University; Gu, Lianhong [ORNL; Hadley, Julian L. [Harvard University; Litvak, Marcy [University of New Mexico, Albuquerque; Martin, Timothy A. [University of Florida, Gainesville; Matamala, Roser [Argonne National Laboratory (ANL); Meyers, Tilden [NOAA, Oak Ridge, TN; Oechel, Walter C. [San Diego State University; Schmid, H. P. [Indiana University; Scott, Russell L. [USDA ARS; Torn, Margaret S. [Lawrence Berkeley National Laboratory (LBNL)

    2011-01-01T23:59:59.000Z

    More accurate projections of future carbon dioxide concentrations in the atmosphere and associated climate change depend on improved scientific understanding of the terrestrial carbon cycle. Despite the consensus that U.S. terrestrial ecosystems provide a carbon sink, the size, distribution, and interannual variability of this sink remain uncertain. Here we report a terrestrial carbon sink in the conterminous U.S. at 0.63 pg C yr 1 with the majority of the sink in regions dominated by evergreen and deciduous forests and savannas. This estimate is based on our continuous estimates of net ecosystem carbon exchange (NEE) with high spatial (1 km) and temporal (8-day) resolutions derived from NEE measurements from eddy covariance flux towers and wall-to-wall satellite observations from Moderate Resolution Imaging Spectroradiometer (MODIS). We find that the U.S. terrestrial ecosystems could offset a maximum of 40% of the fossil-fuel carbon emissions. Our results show that the U.S. terrestrial carbon sink varied between 0.51 and 0.70 pg C yr 1 over the period 2001 2006. The dominant sources of interannual variation of the carbon sink included extreme climate events and disturbances. Droughts in 2002 and 2006 reduced the U.S. carbon sink by 20% relative to a normal year. Disturbances including wildfires and hurricanes reduced carbon uptake or resulted in carbon release at regional scales. Our results provide an alternative, independent, and novel constraint to the U.S. terrestrial carbon sink.

  2. At Last: A Journal Devoted to Ecosystem Science

    E-Print Network [OSTI]

    Turner, Monica G.

    EDITORIAL At Last: A Journal Devoted to Ecosystem Science The science and management of ecosystems to- gether is one of the most dynamic fields of contem- porary ecology. Ecosystem science has disciplines. The scope of ecosystem science encom- passes bounded systems like watersheds as well as spatially

  3. Soil Biology & Biochemistry 38 (2006) 30193034 Terrestrial ecosystem processes of Victoria Land, Antarctica

    E-Print Network [OSTI]

    Wall, Diana

    2006-01-01T23:59:59.000Z

    and Environmental Sciences, University of Stirling, Stirling FK9 4LA, Scotland, UK c Landcare Research, Private Bag diversity and biomass of organisms contributing to ecosystem processes (Campbell and Claridge, 1987; Freck

  4. Continental Scale Comparisons of Terrestrial Carbon Sinks Estimated from Satellite Data and Ecosystem Modeling 1982-1998

    E-Print Network [OSTI]

    Kumar, Vipin

    ecosystem (tundra and boreal) sinks for atmospheric CO2. Key Words: carbon dioxide, ecosystems, remote "missing sink" for carbon dioxide emissions. Measured atmospheric CO2, 13 C, and O2/N2 distributionsContinental Scale Comparisons of Terrestrial Carbon Sinks Estimated from Satellite Data

  5. Ecosystem Science | Clean Energy | ORNL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEA :Work4/11Computational EarthDepartmentTriSolarEcosystem

  6. Texas A&M University Department of Ecosystem Science

    E-Print Network [OSTI]

    i Texas A&M University Department of Ecosystem Science and Management Academic Program Review SelfStudy Document April, 2008 #12;ii Department of Ecosystem Science and Management Academic Program Review April, 2008 Table of Contents 1.0 Department of Ecosystem Science

  7. Improving the representation of terrestrial ecosystem processes in Earth system models to increase the quality of climate model projections and inform DOE's energy decisions

    E-Print Network [OSTI]

    Improving the representation of terrestrial ecosystem processes in Earth system models to increase results are incorporated into Earth system models to improve climate projections. e overarching goal of TES is to improve the representation of terrestrial ecosystem processes in Earth system models

  8. Let's talk about symbiosis! 9:15 Matthias Horn, Department of Microbiology and Ecosystem Science

    E-Print Network [OSTI]

    of Microbiology and Ecosystem Science Welcome Session 1 9:30 Julie Klose Session 2 11:30 Buck Hanson, Department of Microbiology and Ecosystem Science 13:30 Daryl Domman, Department of Microbiology and Ecosystem Science

  9. Methane Fluxes Between Terrestrial Ecosystems and the Atmosphere at Northern High Latitudes During the Past Century: A retrospective analysis with a process-based biogeochemistry model

    E-Print Network [OSTI]

    Zhuang, Qianlai.

    We develop and use a new version of the Terrestrial Ecosystem Model (TEM) to study how rates of methane (CH4) emissions and consumption in high-latitude soils of the Northern Hemisphere have changed over the past century ...

  10. Radionuclides in the terrestrial ecosystem near a Canadian uranium mill -- Part 2: Small mammal food chains and bioavailability

    SciTech Connect (OSTI)

    Thomas, P.A.

    2000-06-01T23:59:59.000Z

    Food chain transfer through the soil-vegetation-small mammal food chain was measured by concentration ratios (CRs) for uranium, {sup 226}Ra, {sup 210}Pb, and {sup 210}Po at three sites near the Key Lake uranium mill in northern Saskatchewan. Plant/soil CRs, animal carcass/GI tract CRs, and animal/soil CRs were depressed at sites impacted by mill and tailings dusts relative to a nearby control site. Thus, radionuclides associated with large particulates in tailings and/or ore dusts may be less bioavailable to terrestrial plants and animals than natural sources of radioactive dust. These results show that reliance on default food chain transfer parameters, obtained from uncontaminated terrestrial ecosystems, may overpredict impacts at uranium mine and mill sites. Given the omnivorous diet of small mammals and birds, animal/soil CRs are recommended as the most cost-effective and robust means of predicting animal concentrations from environmental monitoring data at uranium mill facilities.

  11. Comparing aquatic and terrestrial grazing ecosystems: is the grass really greener?

    E-Print Network [OSTI]

    Burkepile, Deron

    and kelp forests (Burkepile and Hay 2006). Likewise, in freshwater ecosystems, waterfowl, zooplankton and benthic invertebrates impact the rates of primary production and nutrient regeneration (Lamberti and Resh

  12. Interactions of Water and Energy Mediate Responses of High-Latitude Terrestrial Ecosystems to Climate Change

    E-Print Network [OSTI]

    Subin, Zachary Marc

    2012-01-01T23:59:59.000Z

    remote ocean temperatures to respond, while a terrestrial cooling,summer cooling at 850 hPa. Significant remote changescooling due to a change in ocean circulation would imply a compensating remote

  13. ECOSYSTEM ECOLOGY -ORIGINAL PAPER Terrestrial subsidies to lake food webs: an experimental approach

    E-Print Network [OSTI]

    Cucherousset, Julien

    approach Pia Bartels · Julien Cucherousset · Cristian Gudasz · Mats Jansson · Jan Karlsson · Lennart Cross-ecosystem movements of material and energy are ubiquitous. Aquatic ecosystems typically receive¨v Department of Ecology and Genetics/Limnology, Evolutionary Biology Centre, Uppsala University, Uppsala

  14. Dispersants Forum: Gulf of Mexico Oil Spill & Ecosystem Science

    E-Print Network [OSTI]

    New Hampshire, University of

    Dispersants Forum: Gulf of Mexico Oil Spill & Ecosystem Science Conference What have we & Restoration, Gulf of Mexico Disaster Response Center 2.3. Characterizing Dispersant and Dispersed Oil Effects The content for this workshop was developed in cooperation with the Gulf of Mexico Research Initiative (Go

  15. The Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), up and walking

    E-Print Network [OSTI]

    Opgenoorth, Lars; Faith, Daniel P

    2013-01-01T23:59:59.000Z

    valuation, and accounting (3d)  Platform goal  Strengthen the science?policy interface for biodiversity and ecosystem services   

  16. Quantifying the role of fire in the Earth system - Part 2: Impact on the net carbon balance of global terrestrial ecosystems for the 20th century

    SciTech Connect (OSTI)

    Li, Fang; Bond-Lamberty, Benjamin; Levis, Samuel

    2014-03-07T23:59:59.000Z

    Fire is the primary terrestrial ecosystem disturbance agent on a global scale. It affects carbon balance of global terrestrial ecosystems by emitting carbon to atmosphere directly and immediately from biomass burning (i.e., fire direct effect), and by changing net ecosystem productivity and land-use carbon loss in post-fire regions due to biomass burning and fire-induced vegetation mortality (i.e., fire indirect effect). Here, we provide the first quantitative assessment about the impact of fire on the net carbon balance of global terrestrial ecosystems for the 20th century, and investigate the roles of fire direct and indirect effects. This study is done by quantifying the difference between the 20th century fire-on and fire-off simulations with NCAR community land model CLM4.5 as the model platform. Results show that fire decreases net carbon gain of the global terrestrial ecosystems by 1.0 Pg C yr-1 average across the 20th century, as a results of fire direct effect (1.9 Pg C yr-1) partly offset by indirect effect (-0.9 Pg C yr-1). Fire generally decreases the average carbon gains of terrestrial ecosystems in post-fire regions, which are significant over tropical savannas and part of forests in North America and the east of Asia. The general decrease of carbon gains in post-fire regions is because fire direct and indirect effects have similar spatial patterns and the former (to decrease carbon gain) is generally stronger. Moreover, the effect of fire on net carbon balance significantly declines prior to ~1970 with trend of 8 Tg C yr-1 due to increasing fire indirect effect and increases afterward with trend of 18 Tg C yr-1 due to increasing fire direct effect.

  17. Radiological bioconcentration factors for aquatic, terrestrial, and wetland ecosystems at the Savannah River site

    SciTech Connect (OSTI)

    Friday, G.P.; Cummins, C.L.; Schwartzman, A.L.

    1996-12-31T23:59:59.000Z

    Since the early 1950s, the Savannah River Site (SRS) released over 50 radionuclides into the environment while producing nuclear defense materials. These releases directly exposed aquatic and terrestrial biota to ionizing radiation from surface water, soil, and sediment, and also indirectly by the ingestion of items in the food chain. As part of new missions to develop waste management strategies and identify cost-effective environmental restoration options, knowledge concerning the uptake and distribution of these radionuclides is essential. This report compiles and summarizes site-specific bioconcentration factors for selected radionuclides released at SRS.

  18. November 2000 / Vol. 50 No. 11 BioScience 947 Soil as an Endangered Ecosystem

    E-Print Network [OSTI]

    Sparks, Donald L.

    November 2000 / Vol. 50 No. 11 BioScience 947 Soil as an Endangered Ecosystem More than 99% of food worldwide comes from the soil ecosystem. Rapid ero- sion of soil is reducing food production--and causing ecosystem. --DAVID PIMENTAL College of Agriculture and Life Sciences Cornell University Soil and biological

  19. Environmental Science and Management Mission Statement

    E-Print Network [OSTI]

    Environmental Science and Management Mission Statement Approved by the faculty November 29, 2006 Environmental Science and Management is the study of the interactions between society. Environmental Science and Management at PSU focuses on processes that link terrestrial and aquatic ecosystems

  20. The Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), up and walking

    E-Print Network [OSTI]

    Opgenoorth, Lars; Faith, Daniel P

    2013-01-01T23:59:59.000Z

    methodologies on value, valuation, and accounting (3d)  Platform goal  Strengthen the science?policy interface for biodiversity and ecosystem services   

  1. A Community on Ecosystem Services Linking Science, Practice and Decision Making

    E-Print Network [OSTI]

    Florida, University of

    , and on topics related to urban ecosystem services and their valuation. This conference will once again provideACES 2014 A Community on Ecosystem Services Linking Science, Practice and Decision Making December, DC, USA 1 Welcome to ACES 2014! On behalf of A Community on Ecosystem Services (ACES) and our

  2. Mechanistic scaling of ecosystem function and dynamics in space and time: Ecosystem Demography model version 2

    E-Print Network [OSTI]

    Moorcroft, Paul R.

    Mechanistic scaling of ecosystem function and dynamics in space and time: Ecosystem Demography] Insights into how terrestrial ecosystems affect the Earth's response to changes in climate and rising contain detailed mechanistic representations of biological processes affecting terrestrial ecosystems

  3. NREL/ESS Spring 2013 Seminar Series "Core Values of Ecosystem Science and Sustainability"

    E-Print Network [OSTI]

    MacDonald, Lee

    Energy Economy Title: "Sustainability as a Core Value" Feb 15 Dr. Melinda Laituri, Professor, ESS TitleNREL/ESS Spring 2013 Seminar Series "Core Values of Ecosystem Science and Sustainability-sponsored by the Department of Ecosystem Science and Sustainability and NREL, and kicks off the official start to the Bachelor

  4. SCIENCE PLAN AND PROGRESS REPORT FOR THE TERRESTRIAL ECOSYSTEM SCIENCE --SCIENTIFIC FOCUS AREA

    E-Print Network [OSTI]

    and Earth system models. Integration of biophysical, biochemical, physiological, and ecological processes

  5. Terrestrial Ecosystem Science | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurTheBrookhaven NationalRegionals » High School Rules,SubsurfaceSupply

  6. Royal Swedish Academy of Sciences Biodiversity and Ecosystem Processes in Freshwater Sediments

    E-Print Network [OSTI]

    Palmer, Margaret A.

    Royal Swedish Academy of Sciences Biodiversity and Ecosystem Processes in Freshwater Sediments: Springer on behalf of Royal Swedish Academy of Sciences Stable URL: http://www.jstor.org/stable/4314671@jstor.org. . Springer and Royal Swedish Academy of Sciences are collaborating with JSTOR to digitize, preserve

  7. Final Report on "Rising CO2 and Long-term Carbon Storage in Terrestrial Ecosystems: An Empirical Carbon Budget Validation"

    SciTech Connect (OSTI)

    J. Patrick Megonigal; Bert G. Drake

    2010-08-27T23:59:59.000Z

    The primary goal of this report is to report the results of Grant DE-FG02-97ER62458, which began in 1997 as Grant DOE-98-59-MP-4 funded through the TECO program. However, this project has a longer history because DOE also funded this study from its inception in 1985 through 1997. The original grant was focused on plant responses to elevated CO2 in an intact ecosystem, while the latter grant was focused on belowground responses. Here we summarize the major findings across the 25 years this study has operated, and note that the experiment will continue to run through 2020 with NSF support. The major conclusions of the study to date are: (1 Elevated CO2 stimulated plant productivity in the C3 plant community by ~30% during the 25 year study. The magnitude of the increase in productivity varied interannually and was sometime absent altogether. There is some evidence of down-regulation at the ecosystem level across the 25 year record that may be due to interactions with other factors such as sea-level rise or long-term changes in N supply; (2) Elevated CO2 stimulated C4 productivity by <10%, perhaps due to more efficient water use, but C3 plants at elevated CO2 did not displace C4 plants as predicted; (3) Increased primary production caused a general stimulation of microbial processes, but there were both increases and decreases in activity depending on the specific organisms considered. An increase in methanogenesis and methane emissions implies elevated CO2 may amplify radiative forcing in the case of wetland ecosystems; (4) Elevated CO2 stimulated soil carbon sequestration in the form of an increase in elevation. The increase in elevation is 50-100% of the increase in net ecosystem production caused by elevated CO2 (still under analysis). The increase in soil elevation suggests the elevated CO2 may have a positive outcome for the ability of coastal wetlands to persist despite accelerated sea level rise; (5) Crossing elevated CO2 with elevated N causes the elevated CO2 effect to diminish, with consequences for change in soil elevation.

  8. DOE/SC-ARM-13-011 Green Ocean Amazon Terrestrial Ecosystem Collaborative Project Science Plan

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract Management Fermi SitePARTOffice ofHale Plan24,7,INL is6 ARM203

  9. University of Northern British Columbia Ecosystem Science & Management Program-CSAM

    E-Print Network [OSTI]

    Massicotte, Hugues

    plants. Knowledge of the procedures for collecting, preserving, and cataloguing plant material. 2University of Northern British Columbia Ecosystem Science & Management Program-CSAM FSTY-201 PLANT should have the following knowledge, skills and abilities: 1. Understanding of the concepts and methods

  10. Air Handler Condensate Recovery at the Environmental Protection Agency’s (EPA) Science and Ecosystem Support Division

    Broader source: Energy.gov [DOE]

    Case study details EPA's decision to address water conservation and management for its Science and Ecosystem Support Division due to a severe drought. The plan aimed to reduce potable water usage through an air handler condensate recovery project.

  11. Private Lands, Public Goods: Engaging Landowners in Ecosystem Management

    E-Print Network [OSTI]

    Ferranto, Shasta Patricia

    2012-01-01T23:59:59.000Z

    practice: implementing ecosystem management objectives in2009. Science for managing ecosystem services: Beyondthe Millennium Ecosystem Assessment. Proceedings of the

  12. Ecosystem Restoration through Interdisciplinary Exchange

    E-Print Network [OSTI]

    Sachs, Frederick

    Ecosystem Restoration through Interdisciplinary Exchange David M. Blersch dblersch Shade of Blue and You 21 September 2010 #12;National Science Foundation Ecosystem Restoration through;National Science Foundation Ecosystem Restoration through Interdisciplinary Exchange UB's ERIE Program www

  13. Estimation of net ecosystem carbon exchange for the conterminous United States by combining MODIS and AmeriFlux data

    E-Print Network [OSTI]

    Xiao, Jingfeng

    2010-01-01T23:59:59.000Z

    1993), Terrestrial ecosystem production – a process modeland H. L. Gholz (2005), Ecosystem and understory water andestimating per-pixel ecosystem C fluxes. Geophy. Res.

  14. Air Handler Condensate Recovery at the Environmental Protection Agency's Science and Ecosystem Support Division: Best Management Practice Case Study #14; Alternate Water Sources (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-02-01T23:59:59.000Z

    FEMP Water Efficiency Best Management Practice #14 Case Study: Overview of the air handler condensate recovery program at the Environmental Protection Agency's Science and Ecosystem Support Division.

  15. MIT Joint Program on the Science and Policy of Global Change

    E-Print Network [OSTI]

    Ford, Andrew

    indicate that carbon sequestration by terrestrial ecosystems in a world with an atmosphere richer in carbonMIT Joint Program on the Science and Policy of Global Change Consequences of Considering Carbon/Nitrogen Interactions on the Feedbacks between Climate and the Terrestrial Carbon Cycle Andrei P. Sokolov, David W

  16. [Climate implications of terrestrial paleoclimate]. Quaternary Sciences Center, Desert Research Institute annual report, fiscal year 1994/1995

    SciTech Connect (OSTI)

    Wigand, P.E.

    1995-12-31T23:59:59.000Z

    The objective of this study is to collect terrestrial climate indicators for paleoclimate synthesis. The paleobiotic and geomorphic records are being examined for the local and regional impact of past climates to assess Yucca Mountain`s suitability as a high-level nuclear waste repository. In particular these data are being used to provide estimates of the timing, duration and extremes of past periods of moister climate for use in hydrological models of local and regional recharge that are being formulated by USGS and other hydrologists for the Yucca Mountain area. The project includes botanical, faunal, and geomorphic components that will be integrated to accomplish this goal. To this end personnel at the Quaternary Sciences Center of the Desert Research Institute in Reno, Nevada are conducting the following activities: Analyses of packrat middens; Analysis of pollen samples; and Determination of vegetation climate relationships.

  17. Greater Everglades Ecosystem Restoration

    E-Print Network [OSTI]

    Watson, Craig A.

    Greater Everglades Ecosystem Restoration (G.E.E.R.) Science Conference 'HILQLQJ6XFFHVV Naples Beach a Committee of the South Florida Ecosystem Restoration Task Force and Working Group #12;Greater Everglades Ecosystem Restoration (G.E.E.R.) Science Conference Page ii #12;December 11-15, 2000 z Naples, Florida Page

  18. Subscriber access provided by CARY INST ECOSYSTEM STUDIES Environmental Science & Technology is published by the American Chemical

    E-Print Network [OSTI]

    Weathers, Kathleen C.

    Subscriber access provided by CARY INST ECOSYSTEM STUDIES Environmental Science & Technology density of coal burning power plants (4, 5). Acid precipitation has declined in the northeastern US are controlled by the US Clean Air Act (6-9). A decrease in the amount of precipitation f

  19. Whole Ecosystem Measurements of Biogenic Hydrocarbon Emissions Final Report

    E-Print Network [OSTI]

    Cohen, Ronald C.

    Whole Ecosystem Measurements of Biogenic Hydrocarbon Emissions Final Report ARB Award No. 98 of Environmental Science, Policy, and Management Ecosystem Sciences Division 151 Hilgard Hall University Department of Environmental Science, Policy, and Mangement Ecosystem Sciences Division 151 Hilgard Hall

  20. Chinese Journal of Polar Science, Vol. 19, No.2, 218 -229, December 2008 A coupled ice-ocean ecosystem model for I-D and 3-D applica-

    E-Print Network [OSTI]

    Chinese Journal of Polar Science, Vol. 19, No.2, 218 - 229, December 2008 A coupled ice and Chukchi Seas is strongly influenced by the annual cycle of sea ice. Here pelagic and sea ice algal ecosystems coexist and interact with each other. Ecosystem modeling of sea ice associated phytoplankton

  1. Terrestrial sequestration

    ScienceCinema (OSTI)

    Charlie Byrer

    2010-01-08T23:59:59.000Z

    Terrestrial sequestration is the enhancement of CO2 uptake by plants that grow on land and in freshwater and, importantly, the enhancement of carbon storage in soils where it may remain more permanently stored. Terrestrial sequestration provides an opportunity for low-cost CO2 emissions offsets.

  2. Terrestrial sequestration

    SciTech Connect (OSTI)

    Charlie Byrer

    2008-03-10T23:59:59.000Z

    Terrestrial sequestration is the enhancement of CO2 uptake by plants that grow on land and in freshwater and, importantly, the enhancement of carbon storage in soils where it may remain more permanently stored. Terrestrial sequestration provides an opportunity for low-cost CO2 emissions offsets.

  3. Reconciling estimates of the contemporary North American carbon balance among terrestrial biosphere models, atmospheric inversions and a new approach for estimating net ecosystem exchange from inventory-based data

    SciTech Connect (OSTI)

    Hayes, Daniel J [ORNL; Turner, David P [Oregon State University, Corvallis; Stinson, Graham [Pacific Forestry Centre, Canadian Forest Service; Mcguire, David [University of Alaska; Wei, Yaxing [ORNL; West, Tristram O. [Joint Global Change Research Institute, PNNL; Heath, Linda S. [USDA Forest Service; De Jong, Bernardus [ECOSUR; McConkey, Brian G. [Agriculture and Agri-Food Canada; Birdsey, Richard A. [U.S. Department of Agriculture Forest Service; Kurz, Werner [Canadian Forest Service; Jacobson, Andrew [NOAA ESRL and CIRES; Huntzinger, Deborah [University of Michigan; Pan, Yude [U.S. Department of Agriculture Forest Service; Post, Wilfred M [ORNL; Cook, Robert B [ORNL

    2012-01-01T23:59:59.000Z

    We develop an approach for estimating net ecosystem exchange (NEE) using inventory-based information over North America (NA) for a recent 7-year period (ca. 2000 2006). The approach notably retains information on the spatial distribution of NEE, or the vertical exchange between land and atmosphere of all non-fossil fuel sources and sinks of CO2, while accounting for lateral transfers of forest and crop products as well as their eventual emissions. The total NEE estimate of a 327 252 TgC yr1 sink for NA was driven primarily by CO2 uptake in the Forest Lands sector (248 TgC yr1), largely in the Northwest and Southeast regions of the US, and in the Crop Lands sector (297 TgC yr1), predominantly in the Midwest US states. These sinks are counteracted by the carbon source estimated for the Other Lands sector (+218 TgC yr1), where much of the forest and crop products are assumed to be returned to the atmosphere (through livestock and human consumption). The ecosystems of Mexico are estimated tobe a small net source (+18 TgC yr1) due to land use change between 1993 and 2002. We compare these inventorybased estimates with results from a suite of terrestrial biosphere and atmospheric inversion models, where the mean continental-scale NEE estimate for each ensemble is 511 TgC yr1 and 931 TgC yr1, respectively. In the modeling approaches, all sectors, including Other Lands, were generally estimated to be a carbon sink, driven in part by assumed CO2 fertilization and/or lack of consideration of carbon sources from disturbances and product emissions. Additional fluxes not measured by the inventories, although highly uncertain, could add an additional 239 TgC yr1 to the inventory-based NA sink estimate, thus suggesting some convergence with the modeling approaches.

  4. California Mediterranean Rangelands and Ecosystem Conservation Lynn Huntsinger, Professor, Environmental Science, Policy and Management, MC 3110, University

    E-Print Network [OSTI]

    Kammen, Daniel M.

    California Mediterranean Rangelands and Ecosystem Conservation Lynn Huntsinger, Professor Mediterranean species. In this changed ecosystem, grazing and pastoral practices can benefit native wildlife, and land, livestock, and ecosystem service markets. Keywords: transhumance, oak woodlands, ecosystem

  5. Anticipating Stream Ecosystem Responses to Climate Change

    E-Print Network [OSTI]

    Crosby, Benjamin T.

    Anticipating Stream Ecosystem Responses to Climate Change: Toward Predictions that Incorporate, Pocatello, Idaho 83209, USA; 2 Cary Institute of Ecosystem Studies, Millbrook, New York 12545, USA; 3, and debris flows) and shift distributions of terrestrial ecosystems on a global basis. Although

  6. arctic ecosystems dominated: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    by: Arctic Institute of North America Stable URL: http Vermont, University of 7 Improved Climate Prediction through a System Level Understanding of Arctic Terrestrial Ecosystems...

  7. The development of early terrestrial ecosystems

    E-Print Network [OSTI]

    Selden, Paul A.; Edwards, Dianne

    1993-01-01T23:59:59.000Z

    ,575-599. Burgess, N.D. & Edwards, D. (1991). Classification of uppermost Ordovician to Lower Devonian tubular and filamentous macerals from the Anglo-Welsh Basin. Botanical Journal of the Linnean Society 106,41-66. Campbell, S.E. (1979). Soil stabilization...., Massa, D. & Boucot A J . (1982). Caradocian land plant microfossils from Libya. Geology 10.197-201. Gray, J., Theron, J.N. & Boucot, A J . (1986). Age of the Cedarberg Formation, South Africa and early land plant evolution. Geological Magazine 123...

  8. What is the Ecosystem Commons? Why do we need the Ecosystem Commons?

    E-Print Network [OSTI]

    Escher, Christine

    What is the Ecosystem Commons? Why do we need the Ecosystem Commons? The overarching goal of Ecosystem Commons is to enhance the use of ecosystem services and related science in conservation at regional and national ecosystem services events and conferences Provide news and information

  9. China's terrestrial carbon balance: Contributions from multiple global change factors

    E-Print Network [OSTI]

    Montana, University of

    China's terrestrial carbon balance: Contributions from multiple global change factors Hanqin Tian,1 to be investigated. China is important in determining the global carbon balance in terms of both carbon emission change) on net carbon balance in terrestrial ecosystems of China for the period 1961­2005 were modeled

  10. Ecosystem Informatics Strategic Initiative Final Report 2009 Julia Jones, Geosciences; Tom Dietterich, Computer Science; Enrique Thomann, Mathematics; Ed

    E-Print Network [OSTI]

    Escher, Christine

    Ecosystem Informatics Strategic Initiative Final Report 2009 Julia Jones, Geosciences; Tom over the last five years. The Ecosystem Informatics program at Oregon State University has established a presence here at the University and on a global scale. The OSU Ecosystem Informatics IGERT Program (with

  11. GRADUATE RESEARCH OPPORTUNITIES IN APPLIED SCIENCE Effects of Hydroelectric Operations in Canadian Aquatic Ecosystems

    E-Print Network [OSTI]

    Cooke, Steven J.

    GRADUATE RESEARCH OPPORTUNITIES IN APPLIED SCIENCE Effects of Hydroelectric Operations in Canadian with Fisheries and Oceans Canada (6 scientists) and 3 major hydroelectric companies (Nalcor, Manitoba Hydro. Power (U. of Waterloo, m3power@sciborg.uwaterloo.ca) and R. Randall (DFO-Burlington) Effects

  12. Ecosystem services and human culture Judith Hanna

    E-Print Network [OSTI]

    Ecosystem services and human culture Judith Hanna (Social science principal specialist) Judith.hanna@naturalengland.org.uk #12;Ecosystem services Constituents of well-beingSupporting­ecologicalprocesses:nutrient cycling:opportunityto achievewhatanindividualvaluesdoingandbeing Simplified from Millennium Ecosystem Assessment, 2003 #12;Source: MEA (2003) #12;Ecosystems

  13. Machine Learning in Ecosystem Informatics Thomas G. Dietterich

    E-Print Network [OSTI]

    Machine Learning in Ecosystem Informatics Thomas G. Dietterich Oregon State University, Corvallis. The emerging field of Ecosystem Informatics applies meth- ods from computer science and mathematics to address fundamental and applied problems in the ecosystem sciences. The ecosystem sciences are in the midst

  14. Planning the Next Generation of Arctic Ecosystem Experiments

    SciTech Connect (OSTI)

    Hinzman, Larry D [International Arctic Research Center; Wilson, Cathy [Los Alamos National Laboratory (LANL)

    2011-01-01T23:59:59.000Z

    Climate Change Experiments in High-Latitude Ecosystems; Fairbanks, Alaska, 13-14 October 2010; A 2-day climate change workshop was held at the International Arctic Research Center, University of Alaska Fairbanks. The workshop, sponsored by Biological and Environmental Research, Office of Science, U.S. Department of Energy (DOE), was attended by 45 subject matter experts from universities, DOE national laboratories, and other federal and nongovernmental organizations. The workshop sought to engage the Arctic science community in planning for a proposed Next-Generation Ecosystem Experiments (NGEE-Arctic) project in Alaska (http:// ngee.ornl.gov/). The goal of this activity is to provide data, theory, and models to improve representations of high-latitude terrestrial processes in Earth system models. In particular, there is a need to better understand the processes by which warming may drive increased plant productivity and atmospheric carbon uptake and storage in biomass and soils, as well as those processes that may drive an increase in the release of methane (CH{sub 4}) and carbon dioxide (CO{sub 2}) through microbial decomposition of soil carbon stored in thawing permafrost. This understanding is required to quantify the important feedback mechanisms that define the role of terrestrial processes in regional and global climate.

  15. essm.tamu.edu of Ecosystem

    E-Print Network [OSTI]

    essm.tamu.edu Department of Ecosystem Science and Management College of Agriculture and Life of Ecosystem Science and Management (ESSM) at Texas A&M University invites applications for graduate.D. students whose research will focus on the ecology and management of dryland ecosystems. James M. Carder

  16. Invasive Plant-Soil Feedbacks and Ecosystem Resistance and Resilience: A Comparison of Three Vegetation Types in California

    E-Print Network [OSTI]

    Dickens, Sara Jo Myrtle

    2010-01-01T23:59:59.000Z

    over the functioning of ecosystems. Science Chatterjee, A. ,inertia and resilience of ecosystems. Bioscience White, D.inertia and resilience of ecosystems. Bioscience White, D.

  17. A retrospective study of ecosystem effects of the 1976/77 regime shift in the eastern Pacific warm pool

    E-Print Network [OSTI]

    Vilchis, L. Ignacio

    2010-01-01T23:59:59.000Z

    locations in three ecosystems. Marine Biology 82 (2), 199–2009. Subtropical ocean ecosystem structure chang- es forcedrecent collapse of coastal ecosystems. Science 293, 629–637.

  18. Persistent effects of a discrete warming event on a polar desert ecosystem

    E-Print Network [OSTI]

    Fountain, Andrew G.

    Persistent effects of a discrete warming event on a polar desert ecosystem J . E . B A R R E over the previous decade and altered ecosystem properties in both aquatic and terrestrial ecosystems of melt-water had significant influences on Taylor Valley ecosystems that persisted for several years

  19. Ris-PhD-Report Ecosystem-atmosphere exchange of carbon in

    E-Print Network [OSTI]

    Risø-PhD-Report Ecosystem-atmosphere exchange of carbon in a heathland under future climatic conditions Merete Bang Selsted Risø-PhD-63(EN) July 2010 #12;Author: Merete Bang Selsted Title: Ecosystem environmental factors have separately and in combination effect on ecosystem processes. Terrestrial ecosystems

  20. Changes in ecosystem resilience detected in automated measures of ecosystem metabolism

    E-Print Network [OSTI]

    Pace, Michael L.

    Changes in ecosystem resilience detected in automated measures of ecosystem metabolism during of Ecosystem Studies, Millbrook, NY 12545; and c Department of Environmental Sciences, University of Virginia) Environmental sensor networks are developing rapidly to as- sess changes in ecosystems and their services. Some

  1. The Australian terrestrial carbon budget

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    Australian terrestrial carbon budget Open Access 3 , G. P.The Australian terrestrial carbon budget Luo, C. , Mahowald,terrestrial carbon budget Richards, G. P. , Borough, C. ,

  2. ENV/ERS 467/667 Regional and Global Issues in Environmental & Resource Sciences Spring 2006 Global Change Readings and Assignment

    E-Print Network [OSTI]

    Nowak, Robert S.

    -derived carbon dioxide beneath the surface of the earth. Ann. Rev. Energy Environ. 26:145-166. Jackson RB University Press. Koch GW, Mooney HA (1996) Carbon Dioxide and Terrestrial Ecosystems. Academic Press, San: Energy for a greenhouse planet. Science 298:981-987. Holloway S (2001) Storage of fossil fuel

  3. PERSPECTIVE www.rsc.org/pps | Photochemical & Photobiological Sciences Effects of solar UV radiation on aquatic ecosystems and interactions with

    E-Print Network [OSTI]

    Columbia University

    species and aquatic ecosystems (e.g., lakes, rivers, marshes, oceans). Solar UV radiation penetrates and high to mid latitudes have aroused concern about the effects of increased solar UV-B radiation of low temperatures.7 Exposure to solar UV radiation can reduce productivity, affect reproduction

  4. Agriculture, Ecosystems and Environment 162 (2012) 814 Contents lists available at SciVerse ScienceDirect

    E-Print Network [OSTI]

    Nottingham, University of

    2012-01-01T23:59:59.000Z

    .elsevier.com/locate/agee Rainwater harvesting and arthropod biodiversity within an arid agro-ecosystem Olivia Norfolka, , Mahmoud the agricultural potential of the arid landscape. Utilising water that would otherwise be lost from the vicinity venustum and the scavenger beetle Lagria sp. inside the gardens, but no negative impacts on species

  5. Prolonged suppression of ecosystem carbon dioxide uptake after an anomalously warm year

    E-Print Network [OSTI]

    Cai, Long

    LETTERS Prolonged suppression of ecosystem carbon dioxide uptake after an anomalously warm year , Yiqi Luo5 & David S. Schimel6 Terrestrial ecosystems control carbon dioxide fluxes to and from and heterotrophic respira- tion, that determines whether an ecosystem is sequestering carbon or releasing

  6. Twentieth-Century Droughts and Their Impacts on Terrestrial Carbon

    E-Print Network [OSTI]

    Xiao, Jingfeng

    Twentieth-Century Droughts and Their Impacts on Terrestrial Carbon Cycling in China Jingfeng Xiao droughts had significant effects on terrestrial carbon cycling in China, although future studies should Lafayette, Indiana @ Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China

  7. Ecosystems and Sustainable Development

    E-Print Network [OSTI]

    Tufford, Dan

    1999-01-01T23:59:59.000Z

    Review: Ecosystems and Sustainable Development Editors: J.L.Ecosystems and Sustainable Development. Southhampton, UK:as well. Ecosystems and Sustainable Development is a strong

  8. Consequences of Considering Carbon/Nitrogen Interactions on the Feedbacks between Climate and the Terrestrial Carbon Cycle

    E-Print Network [OSTI]

    Sokolov, Andrei P.

    A number of observational studies indicate that carbon sequestration by terrestrial ecosystems in a world with an atmosphere richer in carbon dioxide and a warmer climate depends on the interactions between the carbon and ...

  9. Curriculum Policy of the Graduate School of Agricultural Science, Graduate Program Agricultural Science plans to conserve natural and artificial ecosystems and its ideal of

    E-Print Network [OSTI]

    Banbara, Mutsunori

    ) Environmental Informatics Terrain-Vehicle Systems Process Control Systems for Agri-food Materials Biomeasurement and Technology I-3 Advanced Science and Technology I-4 Advanced Science and Technology I-5 Food, Environmental and Healthy Life (Section of Food) Food, Environmental and Healthy Life (Section of Environment) Food

  10. Land conversion in Amazonia and Northern South America : influences on regional hydrology and ecosystem response

    E-Print Network [OSTI]

    Knox, Ryan Gary

    2013-01-01T23:59:59.000Z

    A numerical model of the terrestrial biosphere (Ecosystem Demography Model) is compbined with an atmospheric model (Brazilian Regional Atmospheric Modeling System) to investigate how land conversion in the Amazon and ...

  11. North American Carbon Program (NACP) Regional Interim Synthesis: Terrestrial Biospheric Model Intercomparision

    SciTech Connect (OSTI)

    Huntzinger, Deborah [University of Michigan; Post, Wilfred M [ORNL; Michalak, Anna [University of Michigan; West, Tristram O. [Joint Global Change Research Institute, PNNL; Jacobson, Andrew [NOAA ESRL and CIRES; Baker, Ian [Colorado State University, Fort Collins; Chen, Jing M. [University of Toronto; Davis, Kenneth [Pennsylvania State University; Hayes, Daniel J [ORNL; Hoffman, Forrest M [ORNL; Jain, Atul [University of Illinois, Urbana-Champaign; Liu, Shuguang [United States Geological Survey, Center for Earth Resources Observation and Science (USGS EROS); Mcguire, David [University of Alaska; Neilson, Ronald [Oregon State University, Corvallis; Poulter, Ben [Potsdam Institute for Climate Impact Research, Potsdam, Germany; Tian, Hanqin [Auburn University, Auburn, Alabama; Thornton, Peter E [ORNL; Tomelleri, Enrico [Max Planck Institute for Biogeochemistry; Viovy, Nicolas [National Center for Scientific Research, Gif-sur-Yvette, France; Xiao, Jingfeng [Purdue University; Cook, Robert B [ORNL

    2012-01-01T23:59:59.000Z

    Understanding of carbon exchange between terrestrial ecosystems and the atmosphere can be improved through direct observations and experiments, as well as through modeling activities. Terrestrial biosphere models (TBMs) have become an integral tool for extrapolating local observations and understanding to much larger terrestrial regions. Although models vary in their specific goals and approaches, their central role within carbon cycle science is to provide a better understanding of the mechanisms currently controlling carbon exchange. Recently, the North American Carbon Program (NACP) organized several interim-synthesis activities to evaluate and inter-compare models and observations at local to continental scales for the years 2000-2005. Here, we compare the results from the TBMs collected as part of the regional and continental interim-synthesis (RCIS) activities. The primary objective of this work is to synthesize and compare the 19 participating TBMs to assess current understanding of the terrestrial carbon cycle in North America. Thus, the RCIS focuses on model simulations available from analyses that have been completed by ongoing NACP projects and other recently published studies. The TBM flux estimates are compared and evaluated over different spatial (1{sup o} x 1{sup o} and spatially aggregated to different regions) and temporal (monthly and annually) scales. The range in model estimates of net ecosystem productivity (NEP) for North America is much narrower than estimates of productivity or respiration, with estimates of NEP varying between -0.7 and 2.2 PgC yr{sup -1}, while gross primary productivity and heterotrophic respiration vary between 12.2 and 32.9 PgC yr{sup -1} and 5.6 and 13.2 PgC yr{sup -1}, respectively. The range in estimates from the models appears to be driven by a combination of factors, including the representation of photosynthesis, the source and of environmental driver data and the temporal variability of those data, as well as whether nutrient limitation is considered in soil carbon decomposition. The disagreement in current estimates of carbon flux across North America, including whether North America is a net biospheric carbon source or sink, highlights the need for further analysis through the use of model runs following a common simulation protocol, in order to isolate the influences of model formulation, structure, and assumptions on flux estimates.

  12. Thompson March 2003 -1STEREO -Solar Terrestrial Relations Observatory Mission STEREO GS PR

    E-Print Network [OSTI]

    Thompson ­ March 2003 - 1STEREO - Solar Terrestrial Relations Observatory Mission STEREO GS PR STEREO Science Center (SSC) William T. Thompson STEREO Science Center Code 682, NASA-Goddard (William.T.Thompson@gsfc.nasa.gov 301-286-2040) #12;Thompson ­ March 2003 - 2STEREO - Solar Terrestrial Relations Observatory Mission

  13. Climate & Environmental Sciences | Clean Energy | ORNL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Climate Change Science Institute Earth and Aquatic Sciences Ecosystem Science Environmental Data Science and Systems Energy-Water Resource Systems Human Health Risk and...

  14. Mycorrhizal fungi mediation of terrestrial ecosystem responses to global change

    E-Print Network [OSTI]

    Mohan, Jacqueline E.

    . Plants often shift carbon allocation belowground and the activities of mycorrhizal associates responding to global change is not well understood. We emphasize the need for more research in this emerging scientific disciplines and society. ª 2014 Elsevier Ltd and The British Mycological Society. * Corresponding

  15. T.G. Hinton: Radioactive Contaminants in Terrestrial Ecosystems | Savannah

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our InstagramStructureProposed Action(InsertAbout theSystems LongFacilityT h

  16. Terrestrial Climate Change and Ecosystem Response Recorded in Lake

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch >Internship Program The NIF andPoints of Contact CurrentSediments and

  17. Engineering the global ecosystem

    E-Print Network [OSTI]

    Stringfellow, William T.; Jain, Ravi

    2010-01-01T23:59:59.000Z

    wetlands has negative impacts on ecosystem services (i.e. ,economically quanti?able ecosystem bene?ts, such as rechargeincluded the loss of natural ecosystem functions and their

  18. Ecosystems and Sustainable Development

    E-Print Network [OSTI]

    Tufford, Dan

    1999-01-01T23:59:59.000Z

    Ecosystems and Sustainable Development Editors: J.L. Uso,Ecosystems and Sustainable Development. Southhampton, UK:ISBN: 1-85312-502-4. Sustainable development research is a

  19. ORIGINAL PAPER Genetically modified crops and aquatic ecosystems

    E-Print Network [OSTI]

    Gruner, Daniel S.

    of genetically modified (GM) crops. The ERA for terrestrial agroecosystems is well-developed, whereas guidance for ERA of GM crops in aquatic ecosystems is not as well-defined. The purpose of this document studies are necessary to inform the risk assessment for a specific GM crop should be done on a case

  20. Ecosystem element cycling Introduction

    E-Print Network [OSTI]

    Ickert-Bond, Steffi

    Ecosystem element cycling Introduction An ecosystem consists of all the biological organisms and the physical environments they occupy together within a defined area [1]. The actual boundaries of an ecosystem are generally defined by researchers studying the ecosystem, who are usually interested in understanding

  1. Net ecosystem production: A comprehensive measure of net carbon accumulation by ecosystems

    E-Print Network [OSTI]

    Randerson, J. T; Chapin, F. S; Harden, J. W; Neff, J. C; Harmon, M. E

    2002-01-01T23:59:59.000Z

    and F A. Bazzaz. August 2002 NET ECOSYSTEM PRODUCTION 1993.Net exchange of CO2 in a mid-latitude forest. ScienceN. , and E. -D. Schulze. 1999. Net CO, and H,O fluxes from

  2. Ecology and Restoration of Invaded Ecosystems FOR 4934 (3 credits)

    E-Print Network [OSTI]

    Slatton, Clint

    Ecology and Restoration of Invaded Ecosystems FOR 4934 (3 credits) Spring 2014 Course Description This advanced ecosystem management course will begin with an overview of the ecological basis for plant in ecology and applied plant science, graduate students in the Masters of Science, Ecological Restoration

  3. Ecology and Restoration of Invaded Ecosystems FOR 6934 (3 credits)

    E-Print Network [OSTI]

    Watson, Craig A.

    Ecology and Restoration of Invaded Ecosystems FOR 6934 (3 credits) Spring 2014 Course Description This advanced ecosystem management course will begin with an overview of the ecological basis for plant in ecology and applied plant science, graduate students in the Masters of Science, Ecological Restoration

  4. Environmental Sciences Division. Annual progress report for period ending September 30, 1980. [Lead abstract

    SciTech Connect (OSTI)

    Auerbach, S.I.; Reichle, D.E.

    1981-03-01T23:59:59.000Z

    Research conducted in the Environmental Sciences Division for the Fiscal Year 1980 included studies carried out in the following Division programs and sections: (1) Advanced Fossil Energy Program, (2) Nuclear Program, (3) Environmental Impact Program, (4) Ecosystem Studies Program, (5) Low-Level Waste Research and Development Program, (6) National Low-Level Waste Program, (7) Aquatic Ecology Section, (8) Environmental Resources Section, (9) Earth Sciences Section, and (10) Terrestrial Ecology Section. In addition, Educational Activities and the dedication of the Oak Ridge National Environmental Research Park are reported. Separate abstracts were prepared for the 10 sections of this report.

  5. Groundwater and Terrestrial Water Storage, 

    E-Print Network [OSTI]

    Rodell, M; Chambers, D P; Famiglietti, J S

    2011-01-01T23:59:59.000Z

    Biomass burning occurs in all vegetated terrestrial central Europe, andEurope in Table 2.6 and F ig . 2.67. Climatological global biomass

  6. Proceedings of the 17th Central Hardwood Forest Conference GTR-NRS-P-78 (2011) 143 STATUS AND POTENTIAL OF TERRESTRIAL

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    AND POTENTIAL OF TERRESTRIAL CARBON SEQUESTRATION IN WEST VIRGINIA Benktesh D. Sharma and Jingxin Wang1 Abstract.--Terrestrial ecosystem management offers cost-effective ways to enhance carbon (C) sequestration. This study utilized C stock and C sequestration in forest and agricultural lands, abandoned mine lands, and harvested wood

  7. SOLAR PHYSICS AND TERRESTRIAL EFFECTS Solar-Terrestrial Interactions

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    SOLAR PHYSICS AND TERRESTRIAL EFFECTS Chapter 4 Chapter 4 Solar-Terrestrial Interactions from the charged particles that reach the planet steadily as part of the solar wind and the much it will be deflected into a circular or spiral path by the Lorentz Force. Most charged particles in the solar wind

  8. Agron. Sustain. Dev. 29 (2009) 113133 c INRA, EDP Sciences, 2008

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    2009-01-01T23:59:59.000Z

    sufficiency. A review R. Lal* The Carbon Management and Sequestration Center, The Ohio State University, through payments for ecosystem services, e.g., C sequestration in terrestrial ecosystems, is an important

  9. agricultural knowledge science: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sciences Agricultural Economics Marine industry studies Corporate social Materials Science Plasma Physics Toxicology Aquatic ecosystems 12;Engineering Biological...

  10. 1, 167193, 2004 Terrestrial carbon

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    BGD 1, 167­193, 2004 Terrestrial carbon budget at country-scale I. A. Janssens et al. Title Page Biogeosciences Discussions is the access reviewed discussion forum of Biogeosciences The carbon budget.janssens@ua.ac.be) 167 #12;BGD 1, 167­193, 2004 Terrestrial carbon budget at country-scale I. A. Janssens et al. Title

  11. Navigating Fragmented Ocean Law in the California Current: Tools to Identify and Measure Gaps and Overlaps for Ecosystem-Based Management

    E-Print Network [OSTI]

    Ekstrom, Julia A.

    2008-01-01T23:59:59.000Z

    14. contamina*, 15. ecosystem, 16. mammal, 17. shellfish,of large marine ecosystems. University of Rhode Island,A Global Crisis for Seagrass Ecosystems. BioScience 56 :987-

  12. Ecosystem Services Ecosystem Function and the Ecosystem Approach 

    E-Print Network [OSTI]

    Vallianou, Koralia

    2013-11-28T23:59:59.000Z

    This project focused on mapping the delivery of three ecosystems services each in one case study area in Scotland and then identify how the Scottish policies such as woodland expansion biodiversity, conservation and food production affect the land...

  13. Trends and Future Challenges in Sampling the Deep Terrestrial Biosphere

    SciTech Connect (OSTI)

    Wilkins, Michael J.; Daly, Rebecca; Mouser, Paula J.; Trexler, Ryan; Sharma, Shihka; Cole, David R.; Wrighton, Kelly C.; Biddle , Jennifer F.; Denis, Elizabeth; Fredrickson, Jim K.; Kieft, Thomas L.; Onstott, T. C.; Peterson, Lee; Pfiffner, Susan M.; Phelps, Tommy J.; Schrenk, Matthew O.

    2014-09-12T23:59:59.000Z

    Research in the deep terrestrial biosphere is driven by interest in novel biodiversity and metabolisms, biogeochemical cycling, and the impact of human activities on this ecosystem. As this interest continues to grow, it is important to ensure that when subsurface investigations are proposed, materials recovered from the subsurface are sampled and preserved in an appropriate manner to limit contamination and ensure preservation of accurate microbial, geochemical, and mineralogical signatures. On February 20th, 2014, a workshop on “Trends and Future Challenges in Sampling The Deep Subsurface” was coordinated in Columbus, Ohio by The Ohio State University and West Virginia University faculty, and sponsored by The Ohio State University and the Sloan Foundation’s Deep Carbon Observatory. The workshop aims were to identify and develop best practices for the collection, preservation, and analysis of terrestrial deep rock samples. This document summarizes the information shared during this workshop.

  14. batteries | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  15. proteins | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  16. aerosols | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  17. polymers | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  18. image superimposition | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  19. ion microprobe | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  20. isotopic ratio | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  1. secondary ion detection | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  2. nanoparticles | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  3. interfaces | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  4. structural biology | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  5. ultrahigh vacuum | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  6. biology | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Molecular Science Computing Facility: Quiet Wing Science Theme: Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Energy Materials & Processes Atmospheric...

  7. Engineering the global ecosystem

    E-Print Network [OSTI]

    Stringfellow, William T.; Jain, Ravi

    2010-01-01T23:59:59.000Z

    of humans deliberately engineering agricultural landscapes.010-0302-8 EDITORIAL Engineering the global ecosystemtale about human explorers engineering the ecosystem of Mars

  8. The Loss of Ecosystem Services on the Yucatn Peninsula in the 21st Century

    E-Print Network [OSTI]

    New Hampshire, University of

    The Loss of Ecosystem Services on the Yucatán Peninsula in the 21st Century Case study: mangrove loss in Mexico (MX) & Belize (BZ) Natallia Leuchanka Environmental Science: Ecosystems; International Reardon #12;#12;Akumal, Mexico (MX) Sarteneja, Belize (BZ) #12;· Ecosystem: a dynamic complex of plant

  9. A site-based approach to delivering rangeland ecosystem Joel BrownA,C

    E-Print Network [OSTI]

    A site-based approach to delivering rangeland ecosystem services Joel BrownA,C and Neil Mac Range, Las Cruces, NM 88003-0003, USA. B CSIRO Ecosystem Sciences, Brisbane, Qld 4102, Australia. C Corresponding author. Email: joelbrow@nmsu.edu Abstract. Rangeland ecosystems are capable of providing an array

  10. Anchoring policy development around stable points : an approach to regulating the co-evolving ICT ecosystem

    E-Print Network [OSTI]

    California at San Diego, University of

    to regulating the co-evolving ICT ecosystem David D. Clark MIT Computer Science of the natural rates of change in different parts of the ecosystem, and examine why hinder its feasibility in the ICT ecosystem. As a means to achieve more

  11. The trophic-level-based ecosystem modelling approach: theoretical overview and practical uses

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The trophic-level-based ecosystem modelling approach: theoretical overview and practical uses Agrocampus ouest / INRA Ecologie et Sante´ des Ecosyste`mes, 65 rue de Saint Brieuc, CS 84215, 35042 Rennes-level-based ecosystem modelling approach: theoretical overview and practical uses. ­ ICES Journal of Marine Science, doi

  12. Ecosystem Engineers in the Pelagic Realm: Alteration of Habitat by Species Ranging from Microbes to Jellyfish

    E-Print Network [OSTI]

    Dabiri, John O.

    SYMPOSIUM Ecosystem Engineers in the Pelagic Realm: Alteration of Habitat by Species Ranging from, Engineering and Applied Science, Pasadena, CA, 91125, USA From the symposium ``Marine Ecosystem Engineers@si.edu Synopsis Ecosystem engineers are species that alter the physical environment in ways that create new

  13. Terrestrial Carbon Observations: Protocols for Vegetation Sampling

    E-Print Network [OSTI]

    GTOS GTOS 55 Terrestrial Carbon Observations: Protocols for Vegetation Sampling and Data Submission Shashi Verma #12;(intentionally blank) #12;Terrestrial Carbon Observations: Protocols for Vegetation Forestry University, Bejing 100083, China 5 University of Wisconsin, Milwaukee, WI 6 Microsoft Research

  14. Is Net Ecosystem Production Equal to Ecosystem Carbon Accumulation?

    E-Print Network [OSTI]

    Pace, Michael L.

    COMMENTARY Is Net Ecosystem Production Equal to Ecosystem Carbon Accumulation? Gary M. Lovett,* Jonathan J. Cole, and Michael L. Pace Institute of Ecosystem Studies, Millbrook, New York 12545, USA ABSTRACT Net ecosystem production (NEP), defined as the difference between gross primary production

  15. Multi-temporal Terrestrial Lidar for Estimating Individual Tree Dimensions and Biomass Change

    E-Print Network [OSTI]

    Srinivasan, Shruthi

    2013-10-30T23:59:59.000Z

    -destructive methods. This study developed algorithms to extract individual tree height, diameter at breast height (DBH), and crown width in plots at Ecosystem Science and Management (ESSM) research area and Huntsville, Texas. Further, the influence of scan settings...

  16. Relative importance of multiple factors on terrestrial loading of DOC to Arctic river networks

    SciTech Connect (OSTI)

    Kicklighter, David W. [Ecosystem Center, The] [Ecosystem Center, The; Hayes, Daniel J [ORNL] [ORNL; Mcclelland, James W [University of Texas] [University of Texas; Peterson, Bruce [Marine Biological Laboratory] [Marine Biological Laboratory; Mcguire, David [University of Alaska] [University of Alaska; Melillo, Jerry [Marine Biological Laboratory] [Marine Biological Laboratory

    2014-01-01T23:59:59.000Z

    Terrestrial carbon dynamics influence the contribution of dissolved organic carbon (DOC) to river networks in addition to controlling carbon fluxes between the land surface and the atmosphere. In this study, we use a biogeochemical process model to simulate the lateral transfer of DOC from land to the Arctic Ocean via riverine transport. We estimate that the pan-arctic watershed has contributed, on average, 32 Tg C/yr of DOC to the Arctic Ocean over the 20th century with most coming from the extensive area of boreal deciduous needle-leaved forests and forested wetlands in Eurasian watersheds. We also estimate that the rate of terrestrial DOC loading has been increasing by 0.037 Tg C/yr2 over the 20th century primarily as a result of increases in air temperatures and precipitation. These increases have been partially compensated by decreases in terrestrial DOC loading caused by wildfires. Other environmental factors (CO2 fertilization, ozone pollution, atmospheric nitrogen deposition, timber harvest, agriculture) are estimated to have relatively small effects on terrestrial DOC loading to arctic rivers. The effects of the various environmental factors on terrestrial carbon dynamics have both compensated and enhanced concurrent effects on hydrology to influence terrestrial DOC loading. Future increases in riverine DOC concentrations and export may occur from warming-induced increases in terrestrial DOC production associated with enhanced microbial metabolism and the exposure of additional organic matter from permafrost degradation along with decreases in water yield associated with warming-induced increases in evapotranspiration. Improvements in simulating terrestrial DOC loading to pan-arctic rivers in the future will require better information on the spatial distribution of precipitation and its temporal trends, carbon dynamics of larch-dominated ecosystems in eastern Siberia, and the role of industrial organic effluents on carbon budgets of rivers in western Russia.

  17. Monetising cultural ecosystem services? 

    E-Print Network [OSTI]

    Vinci, Igor

    2012-11-29T23:59:59.000Z

    ABSTRACT In the context of increasing degradation of the environment, the economic valuation of ecosystem services represents an attempt to quantify the contribution of nature to human wellbeing. This approach has been ...

  18. Urban Ecosystem Design Bedrich Benes

    E-Print Network [OSTI]

    Aliaga, Daniel G.

    Urban Ecosystem Design Bedrich Benes Michel Abdul Massih Philip Jarvis Purdue University Daniel G. Aliaga Carlos A. Vanegas a) b) c) Figure 1: This example demonstrates the need for urban ecosystems. The image in a) shows a terrain occupied by a wild ecosystem and b) displays the same ecosystem grown over

  19. Soil community composition and ecosystem processes Comparing agricultural ecosystems with natural ecosystems

    E-Print Network [OSTI]

    Neher, Deborah A.

    Soil community composition and ecosystem processes Comparing agricultural ecosystems with natural ecosystems D. A. NEHER Department of Biology, University of Toledo, Toledo, OH 43606, USA; E-mail: dneher, nitrogen, pesticides Abstract. Soil organisms play principal roles in several ecosystem functions, i

  20. Management Opportunities for Enhancing Terrestrial Carbon Dioxide Sinks

    SciTech Connect (OSTI)

    Post, W. M.; Izaurralde, Roberto C.; West, Tristram O.; Liebig, Mark A.; King, Anthony W.

    2012-12-01T23:59:59.000Z

    The potential for mitigating increasing atmospheric carbon dioxide concentrations through the use of terrestrial biological carbon (C) sequestration is substantial. Here, we estimate the amount of C being sequestered by natural processes at global, North American, and national US scales. We present and quantify, where possible, the potential for deliberate human actions – through forestry, agriculture, and use of biomass-based fuels – to augment these natural sinks. Carbon sequestration may potentially be achieved through some of these activities but at the expense of substantial changes in land-use management. Some practices (eg reduced tillage, improved silviculture, woody bioenergy crops) are already being implemented because of their economic benefits and associated ecosystem services. Given their cumulative greenhouse-gas impacts, other strategies (eg the use of biochar and cellulosic bioenergy crops) require further evaluation to determine whether widespread implementation is warranted.

  1. Global terrestrial biogeochemistry: Perturbations, interactions, and time scales

    SciTech Connect (OSTI)

    Braswell, B.H. Jr.

    1996-12-01T23:59:59.000Z

    Global biogeochemical processes are being perturbed by human activity, principally that which is associated with industrial activity and expansion of urban and agricultural complexes. Perturbations have manifested themselves at least since the beginning of the 19th Century, and include emissions of CO{sub 2} and other pollutants from fossil fuel combustion, agricultural emissions of reactive nitrogen, and direct disruption of ecosystem function through land conversion. These perturbations yield local impacts, but there are also global consequences that are the sum of local-scale influences. Several approaches to understanding the global-scale implications of chemical perturbations to the Earth system are discussed. The lifetime of anthropogenic CO{sub 2} in the atmosphere is an important concept for understanding the current and future commitment to an altered atmospheric heat budget. The importance of the terrestrial biogeochemistry relative to the lifetime of excess CO{sub 2} is demonstrated using dynamic, aggregated models of the global carbon cycle.

  2. Navigating the complexities of dynamic ecosystem change

    E-Print Network [OSTI]

    Rhodes, Jonathan R.

    2013-01-01T23:59:59.000Z

    Navigating the complexities of dynamic ecosystem change Novel Ecosystems: Intervening in the New Ecological World www.wiley.com  The world’s ecosystems have always been 

  3. EMSL Geochemistry, Biogeochemistry and Subsurface Science-Science Theme Advisory Panel Meeting

    SciTech Connect (OSTI)

    Brown, Gordon E.; Chaka, Anne; Shuh, David K.; Roden, Eric E.; Werth, Charles J.; Hess, Nancy J.; Felmy, Andrew R.; Rosso, Kevin M.; Baer, Donald R.; Bailey, Vanessa L.; Bowden, Mark E.; Grate, Jay W.; Hoyt, David W.; Kuprat, Laura R.; Lea, Alan S.; Mueller, Karl T.; Oostrom, Martinus; Orr, Galya; Pasa-Tolic, Ljiljana; Plata, Charity; Robinson, E. W.; Teller, Raymond G.; Thevuthasan, Suntharampillai; Wang, Hongfei; Wiley, H. S.; Wilkins, Michael J.

    2011-08-01T23:59:59.000Z

    This report covers the topics of discussion and the recommendations of the panel members. On December 8 and 9, 2010, the Geochemistry, Biogeochemistry, and Subsurface Science (GBSS) Science Theme Advisory Panel (STAP) convened for a more in-depth exploration of the five Science Theme focus areas developed at a similar meeting held in 2009. The goal for the fiscal year (FY) 2011 meeting was to identify potential topical areas for science campaigns, necessary experimental development needs, and scientific members for potential research teams. After a review of the current science in each of the five focus areas, the 2010 STAP discussions successfully led to the identification of one well focused campaign idea in pore-scale modeling and five longer-term potential research campaign ideas that would likely require additional workshops to identify specific research thrusts. These five campaign areas can be grouped into two categories: (1) the application of advanced high-resolution, high mass accuracy experimental techniques to elucidate the interplay between geochemistry and microbial communities in terrestrial ecosystems and (2) coupled computation/experimental investigations of the electron transfer reactions either between mineral surfaces and outer membranes of microbial cells or between the outer and inner membranes of microbial cells.

  4. Shelf-sea ecosystems

    SciTech Connect (OSTI)

    Walsh, J J

    1980-01-01T23:59:59.000Z

    An analysis of the food chain dynamics of the Oregon, Alaskan, and New York shelves is made with respect to differences in physical forcing of these ecosystems. The world's shelves are 10% of the area of the ocean, yield 99% of the world's fish catch, and may be a major sink in the global CO/sub 2/ budget.

  5. Pecos River Ecosystem Monitoring Project

    E-Print Network [OSTI]

    McDonald, A.; Hart, C.

    2004-01-01T23:59:59.000Z

    TR- 272 2004 Pecos River Ecosystem Monitoring Project C. Hart A. McDonald Texas Water Resources Institute Texas A&M University - 146 - 2003 Pecos River Ecosystem Monitoring Project... Charles R. Hart, Extension Range Specialist, Fort Stockton Alyson McDonald, Extension Assistant – Hydrology, Fort Stockton SUMMARY The Pecos River Ecosystem Project is attempting to minimize the negative impacts of saltcedar on the river ecosystem...

  6. http://sss.sagepub.com/ Social Studies of Science

    E-Print Network [OSTI]

    Edwards, Paul N.

    ). As the world population has soared over the last 150 years, people have commandeered an ever larger percentage it through biofuels, agriculture, forestry, and use of ecosystem services. According to recent estimates of the biomass available in terrestrial ecosystems) each year, and approximately 83 percent of the world's land

  7. The Galactic Ecosystem Michael Burton

    E-Print Network [OSTI]

    Burton, Michael

    The Galactic Ecosystem Michael Burton School of Physics, University of New South Wales, Australia. THE UNIVERSITY OF NEW SOUTH WALES DEPARTMENT OF ASTROPHYSICS SCHOOL OF PHYSICS Abstract Ecosystems are systems. Ecosystems operate autonomously, by a process of self-regulation. Their flows of energy mean they cannot

  8. Substituted molecular p-dopants: A theoretical study. | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Facility: Radiochemistry Annex Science Theme: Energy Materials & Processes Biosystem Dynamics & Design Terrestrial & Subsurface Ecosystems Atmospheric Aerosol Systems Instruments:...

  9. Atmospheric Aerosol Systems | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Science Themes Atmospheric Aerosol Systems Overview Atmospheric Aerosol Systems Biosystem Dynamics & Design Energy Materials & Processes Terrestrial & Subsurface Ecosystems...

  10. CALMIT Remote-Sensing Research Relating to Carbon Sequestration There is considerable interest in assessing the magnitude of carbon sources and sinks in terrestrial

    E-Print Network [OSTI]

    Nebraska-Lincoln, University of

    CALMIT Remote-Sensing Research Relating to Carbon Sequestration There is considerable interest in assessing the magnitude of carbon sources and sinks in terrestrial ecosystems using remote sensing techniques. We developed a novel technique to remotely assess carbon dioxide exchange in maize using

  11. Automatic building modeling from terrestrial laser scanning

    E-Print Network [OSTI]

    Pu, Shi

    Automatic building modeling from terrestrial laser scanning Shi Pu International Institute for Geo hard to recover 3D building structures from 2D image. Recent studies ([2] [6]) show that laser scanning imagery, airborne and terrestrial laser scanning give explicit 3D information, which enables the rapid

  12. Soil ecosystem functioning under climate change: plant species and community effects

    SciTech Connect (OSTI)

    Kardol, Paul [ORNL; Cregger, Melissa [ORNL; Campany, Courtney E [ORNL; Classen, Aimee T [ORNL

    2010-01-01T23:59:59.000Z

    Feedbacks of terrestrial ecosystems to climate change depend on soil ecosystem dynamics. Soil ecosystems can directly and indirectly respond to climate change. For example, warming directly alters microbial communities by increasing their activity. Climate change may also alter plant community composition, thus indirectly altering the microbial communities that feed on their inputs. To better understand how climate change may directly and indirectly alter soil ecosystem functioning, we investigated old-field plant community and soil ecosystem responses to single and combined effects of elevated [CO2], warming, and water availability. Specifically, we collected soils at the plot level (plant community soils), and beneath dominant plant species (plant-specific soils). We used microbial enzyme activities and soil nematodes as indicators for soil ecosystem functioning. Our study resulted in two main findings: 1) Overall, while there were some interactions, water, relative to increases in [CO2] and warming, had the largest impact on plant community composition, soil enzyme activities, and soil nematodes. Multiple climate change factors can interact to shape ecosystems, but in this case, those interactions were largely driven by changes in water availability. 2) Indirect effects of climate change, via changes in plant communities, had a significant impact on soil ecosystem functioning and this impact was not obvious when looking at plant community soils. Climate change effects on enzyme activities and soil nematode abundance and community structure strongly differed between plant community soils and plant-specific soils, but also within plant-specific soils. In sum, these results indicate that accurate assessments of climate change impacts on soil ecosystem functioning require incorporating the concurrent changes in plant function and plant community composition. Climate change-induced shifts in plant community composition will likely modify or counteract the direct impact of climate change on soil ecosystem functioning, and hence, these indirect effects should be taken into account when predicting how climate change will alter ecosystem functioning.

  13. A Population Model for the Academic Ecosystem

    E-Print Network [OSTI]

    Wu, Yan; Chiu, Dah Ming

    2015-01-01T23:59:59.000Z

    In recent times, the academic ecosystem has seen a tremendous growth in number of authors and publications. While most temporal studies in this area focus on evolution of co-author and citation network structure, this systemic inflation has received very little attention. In this paper, we address this issue by proposing a population model for academia, derived from publication records in the Computer Science domain. We use a generalized branching process as an overarching framework, which enables us to describe the evolution and composition of the research community in a systematic manner. Further, the observed patterns allow us to shed light on researchers' lifecycle encompassing arrival, academic life expectancy, activity, productivity and offspring distribution in the ecosystem. We believe such a study will help develop better bibliometric indices which account for the inflation, and also provide insights into sustainable and efficient resource management for academia.

  14. Climate control of terrestrial carbon exchange across biomes and continents

    E-Print Network [OSTI]

    Yi, C.; Ricciuota, D.; Goulden, M. L.

    2010-01-01T23:59:59.000Z

    control, terrestrial carbon sequestration, temperature,on terrestrial carbon sequestration (Nemani et al 2003, Xiaodeposition and forest carbon sequestration Glob. Change

  15. Methodology for assessing coastal change using terrestrial laser scanning

    E-Print Network [OSTI]

    Olsen, Michael J.

    2009-01-01T23:59:59.000Z

    Michelangelo Project: 3D Scanning of Large Statues,” Proc.for terrestrial laser scanning of long cliff sections inPress). Terrestrial laser scanning based structural damage

  16. Methodology for assessing coastal change using terrestrial laser scanning

    E-Print Network [OSTI]

    Olsen, Michael James

    2009-01-01T23:59:59.000Z

    for terrestrial laser scanning of long cliff sections inPress). Terrestrial laser scanning based structural damageresolution 3d laser scanning to slope stability studies. ”

  17. Thermoelectrics: From Space Power Systems to Terrestrial Waste...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Thermoelectrics: From Space Power Systems to Terrestrial Waste Heat Recovery Applications Thermoelectrics: From Space Power Systems to Terrestrial Waste Heat Recovery Applications...

  18. Ecosystems of MongoliaEcosystems of Mongolia The vast area of the country contains a

    E-Print Network [OSTI]

    1 Ecosystems of MongoliaEcosystems of Mongolia The vast area of the country contains a great array Desert steppe Desert ecosystems MainMain ecosystems of Mongolia High mountain ecosystemsHigh mountain ecosystems High mountain occupies 4.48% of the total territory of Mongolia. Mountain forest ecosystems

  19. Frontiers in Contaminant Speciation and Reactivity in Terrestrial Environments: The Role of Synchrotron Radiation

    E-Print Network [OSTI]

    Sparks, Donald L.

    science. To delineate reaction mechanisms of contaminant reactions on soil minerals and in soils attenuation processes, speciation of metal(loid)s in heterogeneous soilslbiosolids/plants, and mineral/microbe/contaminant226 Frontiers in Contaminant Speciation and Reactivity in Terrestrial Environments: The Role

  20. Graduate student theses supported by DOE`s Environmental Sciences Division

    SciTech Connect (OSTI)

    Cushman, R.M. [Oak Ridge National Lab., TN (United States); Parra, B.M. [Dept. of Energy, Germantown, MD (United States). Environmental Sciences Division] [comps.

    1995-07-01T23:59:59.000Z

    This report provides complete bibliographic citations, abstracts, and keywords for 212 doctoral and master`s theses supported fully or partly by the U.S. Department of Energy`s Environmental Sciences Division (and its predecessors) in the following areas: Atmospheric Sciences; Marine Transport; Terrestrial Transport; Ecosystems Function and Response; Carbon, Climate, and Vegetation; Information; Computer Hardware, Advanced Mathematics, and Model Physics (CHAMMP); Atmospheric Radiation Measurement (ARM); Oceans; National Institute for Global Environmental Change (NIGEC); Unmanned Aerial Vehicles (UAV); Integrated Assessment; Graduate Fellowships for Global Change; and Quantitative Links. Information on the major professor, department, principal investigator, and program area is given for each abstract. Indexes are provided for major professor, university, principal investigator, program area, and keywords. This bibliography is also available in various machine-readable formats (ASCII text file, WordPerfect{reg_sign} files, and PAPYRUS{trademark} files).

  1. EcoGIS GIS Tools for Ecosystem Approaches to Fisheries Management

    E-Print Network [OSTI]

    EcoGIS ­ GIS Tools for Ecosystem Approaches to Fisheries Management May 2009 NOAA TechnicalGIS ­ GIS Tools for Ecosystem Approaches to Fisheries Management. NOAA Technical Memorandum NOS NCCOS 75. 38 Fisheries Science Centers, NOAA Fisheries Regional Offices, NatureServe's EBM Tools Network, and other

  2. Earth and Terrestrial Planet Formation

    E-Print Network [OSTI]

    Jacobson, Seth A

    2015-01-01T23:59:59.000Z

    The growth and composition of Earth is a direct consequence of planet formation throughout the Solar System. We discuss the known history of the Solar System, the proposed stages of growth and how the early stages of planet formation may be dominated by pebble growth processes. Pebbles are small bodies whose strong interactions with the nebula gas lead to remarkable new accretion mechanisms for the formation of planetesimals and the growth of planetary embryos. Many of the popular models for the later stages of planet formation are presented. The classical models with the giant planets on fixed orbits are not consistent with the known history of the Solar System, fail to create a high Earth/Mars mass ratio, and, in many cases, are also internally inconsistent. The successful Grand Tack model creates a small Mars, a wet Earth, a realistic asteroid belt and the mass-orbit structure of the terrestrial planets. In the Grand Tack scenario, growth curves for Earth most closely match a Weibull model. The feeding zon...

  3. DOE Manual Studies Terrestrial Carbon Sequestration

    Broader source: Energy.gov [DOE]

    There is considerable opportunity and growing technical sophistication to make terrestrial carbon sequestration both practical and effective, according to the latest carbon capture and storage "best practices" manual issued by the U.S. Department of Energy.

  4. Ecosystem Science Center (ESC) Approved: September 2004

    E-Print Network [OSTI]

    , but are not limited to: NSF Research Experience for Undergraduates (REU) supplements and site awards, other targeted better graduate students to Michigan Tech. The ESC will to help sponsor national and international at appropriate national and international scientific meetings. The ESC will also promote the availability

  5. Integrated Water, Atmosphere, Ecosystems, Education and Research Program

    E-Print Network [OSTI]

    I-WATER Integrated Water, Atmosphere, Ecosystems, Education and Research Program #12;I-WATER Funding ¤ I-WATER is funded by the National Science Foundation IGERT program ¤ IGERT is NSF's Integrative of the Provost, Office of the Vice President for Research #12;I-WATER: Organizing Concept Water management

  6. Environmental genomics reveals a single species ecosystem deep within the Earth

    E-Print Network [OSTI]

    Chivian, Dylan

    2008-01-01T23:59:59.000Z

    ecosystem deep within the Earth Dylan Chivian 1,2 *, Eoin L.and Survival, Berkeley, CA Earth Sciences Division, Lawrenceecosystem deep within the Earth Dylan Chivian 1,2* , Eoin L.

  7. Great Lakes Ecosystems Flow of energy through ecosystems; recycling of

    E-Print Network [OSTI]

    Cochran-Stafira, D. Liane

    --> light energy ­ there is a loss of "useful" energy during transformation: heat The sun is the ultimate ­ Sun to producer to consumer to decomposer · Solar energy is trapped by photosynthesis as chemical1 Great Lakes Ecosystems Part I Flow of energy through ecosystems; recycling of matter within

  8. SPECIAL FEATURE Terrestrial and Freshwater Biogeochemistry1

    E-Print Network [OSTI]

    Jackson, Robert B.

    on the small watershed-ecosystem approach, this research has been instrumental in identifying acid rain with land use. It continues through the important discoveries of acid rain and nitrogen saturation in Europe to recover that must be considered in managing ecosystem recovery from acid rain and similar large

  9. Ecosystem Services and Environmental Benefits

    E-Print Network [OSTI]

    Tsien, Roger Y.

    Ecosystem Services and Environmental Benefits of the UC San Diego Campus Forest 10 February 2009 #12;2 #12;3 Ecosystem Services and Environmental Benefits of the UC San Diego Campus Forest 10 buildings. By consuming solar energy in the process of evapotranspiration and blocking winter winds

  10. RECOMMENDATIONS FOR ESTABLISHING AN IDENTITY ECOSYSTEM GOVERNANCE

    E-Print Network [OSTI]

    Perkins, Richard A.

    RECOMMENDATIONS FOR ESTABLISHING AN IDENTITY ECOSYSTEM GOVERNANCE STRUCTURE THE DEPARTMENT an Identity Ecosystem Governance Structure This page is intentionally left blank. #12;Recommendations for Establishing an Identity Ecosystem Governance Structure Foreword The Internet is one of the most

  11. Ecosystem Vulnerability Assessment - Patterns of Climate Change...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ecosystem Vulnerability Assessment - Patterns of Climate Change Vulnerability in the Southwest Ecosystem Vulnerability Assessment - Patterns of Climate Change Vulnerability in the...

  12. Science

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiationImplementingnpitcheResearch BriefsTenney, Office of Science Office of Science β

  13. Science

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiationImplementingnpitcheResearch BriefsTenney, Office of Science Office of Science

  14. A global analysis of soil microbial biomass carbon, nitrogen and phosphorus in terrestrial ecosystems

    SciTech Connect (OSTI)

    Xu, Xiaofeng [ORNL; Thornton, Peter E [ORNL; Post, Wilfred M [ORNL

    2013-01-01T23:59:59.000Z

    Soil microbes play a pivotal role in regulating land-atmosphere interactions; the soil microbial biomass carbon (C), nitrogen (N), phosphorus (P) and C:N:P stoichiometry are important regulators for soil biogeochemical processes; however, the current knowledge on magnitude, stoichiometry, storage, and spatial distribution of global soil microbial biomass C, N, and P is limited. In this study, 3087 pairs of data points were retrieved from 281 published papers and further used to summarize the magnitudes and stoichiometries of C, N, and P in soils and soil microbial biomass at global- and biome-levels. Finally, global stock and spatial distribution of microbial biomass C and N in 0-30 cm and 0-100 cm soil profiles were estimated. The results show that C, N, and P in soils and soil microbial biomass vary substantially across biomes; the fractions of soil nutrient C, N, and P in soil microbial biomass are 1.6% in a 95% confidence interval of (1.5%-1.6%), 2.9% in a 95% confidence interval of (2.8%-3.0%), and 4.4% in a 95% confidence interval of (3.9%-5.0%), respectively. The best estimates of C:N:P stoichiometries for soil nutrients and soil microbial biomass are 153:11:1, and 47:6:1, respectively, at global scale, and they vary in a wide range among biomes. Vertical distribution of soil microbial biomass follows the distribution of roots up to 1 m depth. The global stock of soil microbial biomass C and N were estimated to be 15.2 Pg C and 2.3 Pg N in the 0-30 cm soil profiles, and 21.2 Pg C and 3.2 Pg N in the 0-100 cm soil profiles. We did not estimate P in soil microbial biomass due to data shortage and insignificant correlation with soil total P and climate variables. The spatial patterns of soil microbial biomass C and N were consistent with those of soil organic C and total N, i.e. high density in northern high latitude, and low density in low latitudes and southern hemisphere.

  15. Interactions of Water and Energy Mediate Responses of High-Latitude Terrestrial Ecosystems to Climate Change

    E-Print Network [OSTI]

    Subin, Zachary Marc

    2012-01-01T23:59:59.000Z

    to Inclusion of Inland Water Surfaces. J. Clim. , 8, 2691-Estimating sensitivities of water and carbon budgets. J.H. , 1955: Wind Stress Over a Water Surface. Quart. J. Roy.

  16. Sequencing the fungal tree Terrestrial ecosystems host a complex array of interacting

    E-Print Network [OSTI]

    Hibbett, David S.

    with heterotrophic and autotrophic organisms alike, and play an integral and growing role in the development in three areas: plant health, biorefinery and fungal diversity. Plant health depends on interactions

  17. GR Focus Review Impacts of global warming on Permo-Triassic terrestrial ecosystems

    E-Print Network [OSTI]

    Benton, Michael

    with long-term aridification and short-term bursts of warming and acid rain. Wildfires at the Permo have succumbed primarily to acid rain, mass wasting, and aridification. Plants may have been more

  18. Isoprene emission from terrestrial ecosystems in response to global change: minding

    E-Print Network [OSTI]

    FACE apparatus (FACEp; 707 m2 ) was constructed in 1993, 10 years after planting, on a moderate (NPP) under CO2 e may be limited by nutrient availability (Ceulemans et al., 1999; Oren et al., 2001. Although CO2 e often increases NPP, it can also result in greater losses of C (relative to CO2 a ) via soil

  19. Utilizing Vertebrates to Understand the Factors that Influence Terrestrial Ecosystem Structure 

    E-Print Network [OSTI]

    Redman, Cory

    2012-07-16T23:59:59.000Z

    2007; Western and Behrensmeyer 2009, Terry 2010, Toma?ov?ch and Kidwell 2010; Toma?ov?ch and Kidwell 2011). The results of this study suggest that the observed pattern of relationship would be even more robust for studies covering broader...

  20. Radionuclides in the terrestrial ecosystem near a Canadian uranium mill -- Part 1: Distribution and doses

    SciTech Connect (OSTI)

    Thomas, P.A.

    2000-06-01T23:59:59.000Z

    Soils, vegetation, small mammals, and birds were measured for uranium series radionuclides at three sites near the operating Key Lake uranium mill in northern Saskatchewan. Sites, impacted by windblown tailings and mill dust, had significantly higher concentrations of uranium, {sup 226}Ra, {sup 210}Pb, and {sup 210}Po in soils, litter, vegetation, tree needles and twigs, small mammals, and birds, compared to a control site. Samples were collected from both upland jackpine and black spruce bog habitats in triplicate at each site. Both habitats were similar in radionuclide accumulation. Absorbed doses averaged 0.92, 8.4, and 4.9 mGy y{sup {minus}1} to small mammals and 2.0, 5.8, and 2.8 mGy y{sup {minus}1} to Lincoln's sparrows at the control, tailings, and mill sites, respectively. These doses do not include doses from short-lived radon progeny. The majority of the dose increment at the tailings and mill sites was due to {sup 226}Ra, whereas it was {sup 210}Po at the control site. Thus, use of a radiation weighting factor of 20 for alpha radiation raised equivalent doses (in mSv y{sup {minus}1}) by nearly a factor of 20.

  1. Improved Climate Prediction through a System Level Understanding of Arctic Terrestrial Ecosystems

    E-Print Network [OSTI]

    Hubbard, Susan

    understood and many remain uncertain in terms of their representation in Earth System models. Increasing our System models. By extending an already well-established framework for fractional sub-grid area System Model grid cell (i.e., 30x30 km grid size). This vision includes mechanistic studies in the field

  2. Interactions of Water and Energy Mediate Responses of High-Latitude Terrestrial Ecosystems to Climate Change

    E-Print Network [OSTI]

    Subin, Zachary Marc

    2012-01-01T23:59:59.000Z

    of the Community Earth System Model 1 (CESM1, http://and the Community Earth System Model 1 (CESM1) (http://quantify these feedbacks, Earth System Models (ESMs) need to

  3. Interactions of Water and Energy Mediate Responses of High-Latitude Terrestrial Ecosystems to Climate Change

    E-Print Network [OSTI]

    Subin, Zachary Marc

    2012-01-01T23:59:59.000Z

    of the heat capacity of the ice mass and liquid water mass.all the ice (liquid) is melted (frozen). Heat capacities are

  4. Interactions of Water and Energy Mediate Responses of High-Latitude Terrestrial Ecosystems to Climate Change

    E-Print Network [OSTI]

    Subin, Zachary Marc

    2012-01-01T23:59:59.000Z

    A. Arain, 2007: Impacts of peat and vegetation on permafrostdecomposition, water balance, and peat accumulation. Earth2008: High sensitivity of peat decomposition to climate

  5. CENTENARY SYMPOSIUM SPECIAL FEATURE Ecosystem CO2 starvation and terrestrial silicate

    E-Print Network [OSTI]

    , Catherine D. C. Bradshaw2 , Daniel J. Lunt2 , Paul J. Valdes2 , Steven A. Banwart3 , Mark Pagani4 (400, 280, 180 and 100 p.p.m.) and associated late Miocene (11.6­5.3 Ma) cooling. Marked reductions

  6. Interactions of Water and Energy Mediate Responses of High-Latitude Terrestrial Ecosystems to Climate Change

    E-Print Network [OSTI]

    Subin, Zachary Marc

    2012-01-01T23:59:59.000Z

    soil temperatures. Wetland treatments in GCMs (Ringeval etA more mechanistic treatment of wetland hydrology in an ESM

  7. Terrestrial biogeochemical feedbacks in the climate system: from past to future

    SciTech Connect (OSTI)

    Arneth, A.; Harrison, S. P.; Zaehle, S.; Tsigaridis, K; Menon, S; Bartlein, P.J.; Feichter, J; Korhola, A; Kulmala, M; O'Donnell, D; Schurgers, G; Sorvari, S; Vesala, T

    2010-01-05T23:59:59.000Z

    The terrestrial biosphere plays a major role in the regulation of atmospheric composition, and hence climate, through multiple interlinked biogeochemical cycles (BGC). Ice-core and other palaeoenvironmental records show a fast response of vegetation cover and exchanges with the atmosphere to past climate change, although the phasing of these responses reflects spatial patterning and complex interactions between individual biospheric feedbacks. Modern observations show a similar responsiveness of terrestrial biogeochemical cycles to anthropogenically-forced climate changes and air pollution, with equally complex feedbacks. For future conditions, although carbon cycle-climate interactions have been a major focus, other BGC feedbacks could be as important in modulating climate changes. The additional radiative forcing from terrestrial BGC feedbacks other than those conventionally attributed to the carbon cycle is in the range of 0.6 to 1.6 Wm{sup -2}; all taken together we estimate a possible maximum of around 3 Wm{sup -2} towards the end of the 21st century. There are large uncertainties associated with these estimates but, given that the majority of BGC feedbacks result in a positive forcing because of the fundamental link between metabolic stimulation and increasing temperature, improved quantification of these feedbacks and their incorporation in earth system models is necessary in order to develop coherent plans to manage ecosystems for climate mitigation.

  8. Pacific Northwest Laboratory annual report for 1992 to the DOE Office of Energy Research. Part 2, Environmental sciences

    SciTech Connect (OSTI)

    Grove, L.K. [ed.; Wildung, R.E.

    1993-03-01T23:59:59.000Z

    The 1992 Annual Report from Pacific Northwest Laboratory (PNL) to the US Department of Energy (DOE) describes research in environment and health conducted during fiscal year 1992. This report consists of four volumes oriented to particular segments of the PNL program, describing research performed for the DOE Office of Health and Environmental Research in the Office of Energy Research. The parts of the 1992 Annual Report are: Biomedical Sciences; Environmental Sciences; Atmospheric Sciences; and Physical Sciences. This Report is Part 2: Environmental Sciences. Included in this report are developments in Subsurface Science, Terrestrial Science, Laboratory-Directed Research and Development, Interactions with Educational Institutions, Technology Transfer, Publications, and Presentations. The research is directed toward developing a fundamental understanding of subsurface and terrestrial systems as a basis for both managing these critical resources and addressing environmental problems such as environmental restoration and global change. The Technology Transfer section of this report describes a number of examples in which fundamental research is laying the groundwork for the technology needed to resolve important environmental problems. The Interactions with Educational Institutions section of the report illustrates the results of a long-term, proactive program to make PNL facilities available for university and preuniversity education and to involve educational institutions in research programs. The areas under investigation include the effect of geochemical and physical phenomena on the diversity and function of microorganisms in deep subsurface environments, ways to address subsurface heterogeneity, and ways to determine the key biochemical and physiological pathways (and DNA markers) that control nutrient, water, and energy dynamics in arid ecosystems and the response of these systems to disturbance and climatic change.

  9. Sensitivity of Global Terrestrial Gross Primary Production to Hydrologic States Simulated by the Community Land Model Using Two Runoff Parameterizations

    SciTech Connect (OSTI)

    Lei, Huimin; Huang, Maoyi; Leung, Lai-Yung R.; Yang, Dawen; Shi, Xiaoying; Mao, Jiafu; Hayes, Daniel J.; Schwalm, C.; Wei, Yaxing; Liu, Shishi

    2014-09-01T23:59:59.000Z

    The terrestrial water and carbon cycles interact strongly at various spatio-temporal scales. To elucidate how hydrologic processes may influence carbon cycle processes, differences in terrestrial carbon cycle simulations induced by structural differences in two runoff generation schemes were investigated using the Community Land Model 4 (CLM4). Simulations were performed with runoff generation using the default TOPMODEL-based and the Variable Infiltration Capacity (VIC) model approaches under the same experimental protocol. The comparisons showed that differences in the simulated gross primary production (GPP) are mainly attributed to differences in the simulated leaf area index (LAI) rather than soil moisture availability. More specifically, differences in runoff simulations can influence LAI through changes in soil moisture, soil temperature, and their seasonality that affect the onset of the growing season and the subsequent dynamic feedbacks between terrestrial water, energy, and carbon cycles. As a result of a relative difference of 36% in global mean total runoff between the two models and subsequent changes in soil moisture, soil temperature, and LAI, the simulated global mean GPP differs by 20.4%. However, the relative difference in the global mean net ecosystem exchange between the two models is small (2.1%) due to competing effects on total mean ecosystem respiration and other fluxes, although large regional differences can still be found. Our study highlights the significant interactions among the water, energy, and carbon cycles and the need for reducing uncertainty in the hydrologic parameterization of land surface models to better constrain carbon cycle modeling.

  10. Entrepreneurial ecosystems around the world

    E-Print Network [OSTI]

    Kumar, Anand R

    2013-01-01T23:59:59.000Z

    Entrepreneurship is a vehicle of growth and job creation. America has understood it and benefitted most from following this philosophy. Governments around the world need to build and grow their entrepreneurial ecosystems ...

  11. The Kootenai Tribe's Kootenai River Ecosystem

    E-Print Network [OSTI]

    The Kootenai Tribe's Kootenai River Ecosystem Restoration Project 1994-2012 Project # 199404900 · PURPOSE: TO ADDRESS FISHERIES RELATED PROBLEMS AT AN ECOSYSTEM LEVEL AND PROVIDE RESTORATION SOLUTIONS Kootenai River OBJ-2: Restore Ecosystem Productivity OBJ-3: Restore Ecosystem Productivity to Kootenay Lake

  12. The Behaviour ofIodine in the Terrestrial Environment.

    E-Print Network [OSTI]

    The Behaviour ofIodine in the Terrestrial Environment. An Investigation of the Possible Roskilde, Denmark Febtuary 1990 #12;1 Risø-M-2851 THE BEHAVIOUR OF IODINE IN THE TERRESTRIAL ENVIRONMENT influence the migration behaviour of iodine in the terrestrial environment. It is stated that the organic

  13. UNBC Ecosystem Science & Management College of Science and Management

    E-Print Network [OSTI]

    Northern British Columbia, University of

    and other Dendroctonus species using Dendroctonus rufipennis primer sequences Dr. Brent Murray (250) 960 populations of the mountain pine beetle (Dendroctonus ponderosa ); validation of existing markers Dr. Brent-scale dispersal patterns by comparison of genetic patterns in the Mountain Pine Beetle (Dendroctonus ponderosa

  14. Turbulence Mixing and Transport Mechanisms in a Coastal Ecosystem: Bay of La Paz, Baja California Sur, Mexico

    E-Print Network [OSTI]

    Pettijohn, Burkely Ashton

    2014-02-10T23:59:59.000Z

    ABSTRACT Turbulence Mixing and Transport Mechanisms in a Coastal Ecosystem: Bay of La Paz, Baja California Sur, Mexico. (May 2014) Burkely Ashton Pettijohn Department of Marine Sciences Texas A&M University Research Advisor: Dr. Ayal Anis...

  15. Science

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebook Twitter Principalfuel cells" Find + AdvancedSignScience

  16. Science

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > TheNuclearHomeland Science Stockpile Stewardship National Security

  17. Columbia River Plume andColumbia River Plume and California Current Ecosystem:California Current Ecosystem

    E-Print Network [OSTI]

    Leonard, Fish, Wildlife, Ecosystem Monitoring and Evaluation Manager SUBJECT: Summary of Public and ISAB substitution), wildlife, habitat/ecosystem questions thereby balancing the currently predominant anadromous

  18. Carbon flow and ecosystem dynamics in the Mississippi River plume described by inverse analysis

    E-Print Network [OSTI]

    Breed, Greg Allen

    2002-01-01T23:59:59.000Z

    for the degree of MASTER OF SCIENCE December 2002 Major Subject: Oceanography CARBON FLOW AND ECOSYSTEM DYNAMICS IN THE MISSISSIPPI RIVER PLUME DESCRIBED BY INVERSE ANALYSIS A Thesis by GREG ALLEN BREED Submitted to Texas A&M University in partial... of Department) December 2002 Major Sublect: Oceanography ABSTRACT Carbon Flow and Ecosystem Dynamics in the Mississippi River Plume Described by Inverse Analysis. (December 2002) Greg Allen Breed, B. S. , University of Minnesota Chair of Advisory...

  19. Integrating cultural services and social value: Novel directions for ecosystem service management, valuation, and complexity

    E-Print Network [OSTI]

    Wallen, Kenneth E.

    2013-01-01T23:59:59.000Z

    Applied?Biodiversity?Sciences?Perspectives?Series? Advancing?Conservation?with?innovative?ideas?from?the?future?generation? ? Integrating?cultural?services?and?social?value:?Novel? directions?for?ecosystem?service?management,? valuation...?Kenneth?E.?Wallen?? ? ?? ? ? ? Suggested?citation:? Wallen,?K.?E.?(2013).?Integrating?cultural?services?and?social?value:?Novel? directions?for?ecosystem?service?management,?valuation,?and?complexity.? Applied?Biodiversity?Perspective?Series,?3(1)?1?13.? ? ? ? ? ABSTRACT...

  20. Water relations strategies of two grass and shrub species as influenced by prescribed burning in a semiarid ecosystem in Kenya

    E-Print Network [OSTI]

    Ali, Ali Ramadhan

    1984-01-01T23:59:59.000Z

    WATER RELATIONS STRATEGIES OF TWO GRASS AND SHRUB SPECIES AS INFLUENCED BY PRESCRIBED BURNING IN A SEMIARID ECOSYSTEM IN KENYA A Thesis by ALI RAMADHAN ALI Submitted to the Graduate College of Texas A&M University in Partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1984 Major Subject: Range Science WATER RELATIONS STRATEGIES OF TWO GRASS AND SHRUB SPECIES AS INFLUENCED BY PRESCRIBED BURNING IN A SEMIARID ECOSYSTEM IN KENYA A Thesis by ALI RAMADHAN ALI...

  1. Review: Ecology and Ecosystem Conservation by Oswald J. Schmitz

    E-Print Network [OSTI]

    Hamilton-Smith, Elery

    2007-01-01T23:59:59.000Z

    Review: Ecology and Ecosystem Conservation By Oswald J.Oswald J, Ecology and Ecosystem Conservation. Washington:when the protection of the ecosystem also extends outside of

  2. Size structuring of planktonic communities : biological rates and ecosystem dynamics

    E-Print Network [OSTI]

    Taniguchi, Darcy Anne Akiko

    2013-01-01T23:59:59.000Z

    and nutrient enriched ecosystems. Limnology and Oceanographyin the pelagic ecosystem. Helgol. Wiss. Meeresunters. 30:Size-structured planktonic ecosystems: constraints, controls

  3. azov coastal ecosystem: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Software Ecosystems Mircea Lungua , Michele Lanzaa, research groups or even the open-source communities. We call these contexts software ecosystems of project ecosystems through...

  4. Science in China Series C: Life Sciences 2007 Science in China Press

    E-Print Network [OSTI]

    Wu, Jianguo "Jingle"

    Science in China Series C: Life Sciences © 2007 Science in China Press Springer-Verlag www.scichina.com www.springerlink.com Sci China Ser C-Life Sci | 2007 | vol. 50 | no. 2 | 277-284 Changes in biodiversity and ecosystem function during the restoration of a tropical forest in south China REN Hai1 , LI

  5. Science in China Series D: Earth Sciences 2008 SCIENCE IN CHINA PRESS

    E-Print Network [OSTI]

    Tong, Jinnan

    Science in China Series D: Earth Sciences © 2008 SCIENCE IN CHINA PRESS Springer Sci China Ser D.springerlink.com Anachronistic facies in the Lower Triassic of South China and their implications to the ecosystems during and Mineral Resources, China University of Geosciences, Wuhan 430074, China; 2 Yichang Institute of Geology

  6. Ecosystem-scale Selenium Model for the San Francisco Bay-Delta Regional Ecosystem Restoration Implementation Plan

    E-Print Network [OSTI]

    Presser, Theresa S.; Luoma, Samuel N.

    2013-01-01T23:59:59.000Z

    Rivers: implications for ecosystem restoration: Final reportto CALFED. Ecosystem Restoration Program Agreement No.support tools to guide ecosystem restoration planning and

  7. Modelling Marine Ecosystems Mick Follows

    E-Print Network [OSTI]

    Follows, Mick

    , Massachusetts Institute of Technology http://ocean.mit.edu/~mick/Downloads.html #12;What is the marine ecosystem limited Light limited Reveals environmental regulation of primary production #12;coccolithophores (CaCO3 of organic carbon Current Question: What regulatesC

  8. Terrestrial vertebrate fauna surveys for the preparation of environmental impact assessments; how can we do it better? A Western Australian example

    SciTech Connect (OSTI)

    Thompson, Graham G. [Centre for Ecosystem Management, Edith Cowan University, Joondalup Dr., Joondalup, Western Australia 6010 (Australia)]. E-mail: g.thompson@ecu.edu.au

    2007-01-15T23:59:59.000Z

    The Western Australian Environmental Protection Authority (EPA) in 2002 released Position Statement, No. 3, Terrestrial Biological Surveys as an Element of Biodiversity Protection outlining how terrestrial fauna survey data are to be used and interpreted in the preparation of environmental impact assessments (EIA). In 2004, the EPA released its Guidance for the Assessment of Environmental Factors, Terrestrial Fauna Surveys for Environmental Impact Assessment in Western Australia, No. 56. This paper briefly assesses the adequacy of recent terrestrial fauna surveys undertaken to support publicly released EIAs and indicates that the EPA is not always adhering to its own position and guidance statements. This paper argues that the current fauna survey guidelines are in need of improvement. The approach and requirements of some other Australian states are briefly assessed to identify similarities and where improvements can be made to the Western Australian (WA) guidelines. This paper concludes with suggestions on how the process and the guidelines in WA can be revised to more adequately assess the impact of developments on terrestrial vertebrate biodiversity and ecosystem function. These suggestions may have relevance for other areas where fauna surveys are undertaken to support EIAs.

  9. Overview and ApproachesOverview and Approaches to Ecosystem Restorationto Ecosystem Restoration

    E-Print Network [OSTI]

    Overview and ApproachesOverview and Approaches to Ecosystem Restorationto Ecosystem Restoration to restoreTo the extent possible, we need to restore historic conditions on the ecosystem scalehistoric conditions on the ecosystem scale to achieve these goalsto achieve these goals Habitat LossHabitat Loss #12

  10. Abstract--The Digital Ecosystem (DES) paradigm and consequently Digital Business Ecosystems (DBE) are powerful

    E-Print Network [OSTI]

    Ricci, Francesco

    Abstract-- The Digital Ecosystem (DES) paradigm and consequently Digital Business Ecosystems (DBE) are powerful emerging inter-company cooperative structures. One of the main advantages of an ecosystem companies of the ecosystem is an essential binding element among them. The intention of this paper

  11. Well being, forestry and ecosystem services Wellbeing, forestry and ecosystem services: A

    E-Print Network [OSTI]

    Well being, forestry and ecosystem services Wellbeing, forestry and ecosystem services increasingly important in government policy in the last decade. Ecosystem services have also become a significant focus for government following the Millennium Ecosystem Assessment (MEA). Human wellbeing is a key

  12. Ontological Investigation of Ecosystem Hierarchies and Formal Theory for Multiscale Ecosystem

    E-Print Network [OSTI]

    Bittner, Thomas

    Ontological Investigation of Ecosystem Hierarchies and Formal Theory for Multiscale Ecosystem ecosystems as a representative example of a geographic object. To achieve this goal we will develop a formalized framework for handling of the structure of ecosystem hierarchies. Our theory will be demonstrated

  13. Humans influence every ecosystem on Earth, lead-ing to impairment of natural ecosystem structure and

    E-Print Network [OSTI]

    but coupling that potential with societal demands and eco- nomic feasibility.Valuation of ecosystem goods are ig- nored.Ascribing an economic value to some ecosystem goods and services,by contrastArticles Humans influence every ecosystem on Earth, lead- ing to impairment of natural ecosystem

  14. Land Use and Ecosystems Data from the Carbon Dioxide Information Analysis Center (CDIAC)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    CDIAC products are indexed and searchable through a customized interface powered by ORNL's Mercury search engine. Products include numeric data packages, publications, trend data, atlases, models, etc. and can be searched for by subject area, keywords, authors, product numbers, time periods, collection sites, spatial references, etc. Some of the collections may also be included in the CDIAC publication titled Trends Online: A Compendium of Global Change Data. Most data sets, many with numerous data files, are free to download from CDIAC's ftp area. Land Use and Ecosystems information includes Terrestrial Carbon Sequestration Data Sets, data sets from Africa and Asia, the Worldwide Organic Soil Carbon and Nitrogen Dataset, and much more.

  15. Lessons from IT Ecosystems Michael Kster

    E-Print Network [OSTI]

    Zachmann, Gabriel

    -Transport-Systems Smart-Energy-Systems etc. Smart Airport as a smaller instance of a Smart City Michael Köster · CIG, TU and interact massively. IT Ecosystem: analogue to biological ecosystems based on the balance between and continuously evolving IT Ecosystems requires deep understanding of this balance. Michael Köster · CIG, TU

  16. Ecosystem Viable Yields Michel De Lara

    E-Print Network [OSTI]

    Ecosystem Viable Yields Michel De Lara Eladio Oca~na Ricardo Oliveros-Ramos Jorge Tam April 21- cation of the ecosystem approach by 2010. However, at the same Summit, the signatory States undertook ecosystemic dimension, since MSY is computed species by species, on the basis of a monospecific model

  17. Linking ecosystem and parasite Michel Loreau,1

    E-Print Network [OSTI]

    Minnesota, University of

    13 CHAPTER 1 Linking ecosystem and parasite ecology Michel Loreau,1 Jacques Roy,2 and David Tilman3 Parasites are rarely considered in ecosystem studies. The current interest in the relationship between biodiversity and ecosystem functioning, however, has stimulated the emergence of new synthetic approaches

  18. A Public Sentiment Index for Ecosystem Management

    E-Print Network [OSTI]

    Pauly, Daniel

    A Public Sentiment Index for Ecosystem Management Ratana Chuenpagdee,1 * Lisa Liguori,2 Dave ABSTRACT Although ecosystem-based management can lead to sustainable resource use, its successful imple the ecosystems with stakeholders' preferences is therefore needed. We propose here a 'Public Sen- timent Index

  19. Ecosystem services, resilience and our changing climate

    E-Print Network [OSTI]

    Nebraska-Lincoln, University of

    Ecosystem services, resilience and our changing climate Craig R. Allen Nebraska Cooperative Fish ecosystems for critical services #12;What Do Species Do? · regulate biogeochemical cycles ­ e.g., moose.g., predation / herbivory · provide ecological services ­ e.g., pollination #12;Ecosystem Services - Supporting

  20. Ecosystem Viable Yields Michel De Lara

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Ecosystem Viable Yields Michel De Lara Eladio Oca~na Ricardo Oliveros-Ramos Jorge Tam November the appli- cation of the ecosystem approach by 2010. However, at the same Summit, the signatory States without ecosystemic dimension, since MSY is computed species by species, on the basis of a monospecific

  1. CANARY CURRENT LARGE MARINE ECOSYSTEM (CCLME) PROJECT

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 CANARY CURRENT LARGE MARINE ECOSYSTEM (CCLME) PROJECT CCLME Inception Workshop 2-3 November 2010. Two possible case studies are presented: the Imraguen social-ecosystem of the Banc d'Arguin National Park, the Bamboung marine protected area social-ecosystem. Key words Social-ecological system, climate

  2. PERSPECTIVE Restoration of Ecosystem Services for

    E-Print Network [OSTI]

    Palmer, Margaret A.

    , are not pro- viding all the services of healthy ecosystems (6, 7). Stream and river restoration projectsPERSPECTIVE Restoration of Ecosystem Services for Environmental Markets Margaret A. Palmer1,2 * and Solange Filoso1 Ecological restoration is an activity that ideally results in the return of an ecosystem

  3. affect ecosystem metabolism: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mike 9 Ecosystem type affects interpretation of soil nematode community measures Environmental Management and Restoration Websites Summary: and agricultural ecosystems;...

  4. Site vegetation report: Terrestrial vegetation survey (1993--1995) for the Rocky Flats Environmental Technology Site

    SciTech Connect (OSTI)

    NONE

    1997-06-01T23:59:59.000Z

    The Ecological Monitoring Program (EcMP) was designed to investigate the long-term ecological trends in terrestrial and aquatic ecosystems at the US Department of energy`s (DOE`s) Rocky Flats Environmental Technology Site (Site) (DOE 1993). Field sampling was conducted during 1993, 1994, and 1995, until the program was terminated in late 1995. This report presents the terrestrial vegetation data that were gathered by the EcMP. The site is located on the Colorado Piedmont, east of the Front Range, between Boulder and Golden, approximately 25 km (16 miles) northwest of Denver. The topography and proximity of the Site to the mountain front result in an interesting mixture of prairie and mountain plant species. The Site is one of the few large, relatively undisturbed areas of its kind that remains along the Colorado Piedmont. Until 1989, the primary mission of the Site was the production of nuclear weapons components (DOE 1993). After production ceased, Site personnel shifted their focus to cleanup and closure.

  5. WSDOT highway maintenance: environmental compliance for protected terrestrial species

    E-Print Network [OSTI]

    O’Brien, Tracie; Carey, Marion; Forrester, Bret

    2005-01-01T23:59:59.000Z

    of the WSDOT Highway Maintenance: Environmental Complianceand the Highway Maintenance Manual for Terrestrial Species.to impacts from routine maintenance activities. In response

  6. accumulating terrestrial plant: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Keith Green, Megan Murphy, Jenna Pathways for Terrestrial Vertebrates. In Carlton, J., G. Ruiz, and R. Mack (Eds.), Invasive species: vectors and management strategies (pp....

  7. Terrestrial applications of the heatpipe power system

    SciTech Connect (OSTI)

    Houts, M.G.; Poston, D.I.

    1997-02-01T23:59:59.000Z

    A terrestrial reactor that uses the same design approach as the Heatpipe Power System (HPS) may have applications both on earth and on other planetary surfaces. The baseline HPS is a potential, near-term, low-cost space fission power system. The system will be composed of independent modules, and all components operate within the existing database. The HPS has relatively few system integration issues; thus, the successful development of a module is a significant step toward verifying system feasibility and performance estimates. A prototypic, refractory-metal HPS module is being fabricated, and testing is scheduled to begin in November 1996. A successful test will provide high confidence that the HPS can achieve its predicted performance. An HPS incorporating superalloys will be better suited for some terrestrial or planetary applications. Fabrication and testing of a superalloy HPS module should be less challenging than that of the refractory metal module. A superalloy HPS core capable of delivering > 100 kWt to a power conversion subsystem could be fabricated for about $500k (unfueled). Tests of the core with electric heat (used to simulate heat from fission) could demonstrate normal and off-normal operation of the core, including the effects of heatpipe failure. A power conversion system also could be coupled to the core to demonstrate full system operation.

  8. Consideration of Ecosystem for ICME

    SciTech Connect (OSTI)

    Ren, Weiju [ORNL

    2013-01-01T23:59:59.000Z

    As the Integrated Computational Materials Engineering (ICME) emerges as a hot topic, computation, experimentation, and digital database are identified as its three major components. Efforts are being actively made from various aspects to bring ICME to reality. However, many factors that would affect ICEM development still remain vague. This paper is an attempt to discuss the needs for establishing a database centered ecosystem to facilitate ICEM development.

  9. LOCOMOTION (TERRESTRIAL AND AERIAL) AND COMMUNICATION OF AUTONOMOUS ROBOT NETWORKS

    E-Print Network [OSTI]

    Kansas, University of

    , flying robots, micro-air vehicles, robot communication, autonomous robot networks. #12;2 1. TERRESTRIAL1 LOCOMOTION (TERRESTRIAL AND AERIAL) AND COMMUNICATION OF AUTONOMOUS ROBOT NETWORKS Arvin Agah vehicles, next generation robotic platforms, platform mechanics and materials, winterization of robotic

  10. Ice Storm Damage Greater Along the Terrestrial-Aquatic Interface

    E-Print Network [OSTI]

    Kraft, Clifford E.

    Ice Storm Damage Greater Along the Terrestrial-Aquatic Interface in Forested Landscapes Andrew A- tems. In 1998, a severe ice storm damaged over ten million hectares of forest across northern New York investigated the spatial arrangement of forest damage at the terrestrial-aquatic interface, an ecological edge

  11. China-US Collaborative Research on Life in Terrestrial

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Symposium: China-US Collaborative Research on Life in Terrestrial Geothermal Springs Information, Agenda, and Abstracts June 26-28, 2013, Kunming, China #12;Symposium: China-US Collaborative Research on Life in Terrestrial Geothermal Springs Kunming, China June 26-28, 2013 Information, Agenda

  12. Slide 1 (of 42) Observations of Terrestrial Planet

    E-Print Network [OSTI]

    Shumway, John

    formation epoch and occurrence rate of rocky terrestrial planets around solar- and intermediate- mass Observatory/Lynette Cook Zuckerman et al. (2008) #12;Slide 6 (of 42) What does Terrestrial mean 42) HD 15407A Gemini Observatory/Lynette Cook Melis et al. 2010, ApJ Letters #12;Slide 16 (of 42

  13. Earth Systems Science Earth Systems Science at UNH

    E-Print Network [OSTI]

    Pringle, James "Jamie"

    Earth Systems Science Earth Systems Science at UNH THE UNH Institute for the Study of Earth, Oceans, and Space (EOS) Earth Systems Research Center is dedicated to understanding the Earth as an integrative scientists and students study the Earth's ecosystems, atmosphere, water, and ice using field measurements

  14. Solar magnetic fields and terrestrial climate

    E-Print Network [OSTI]

    Georgieva, Katya; Kirov, Boian

    2014-01-01T23:59:59.000Z

    Solar irradiance is considered one of the main natural factors affecting terrestrial climate, and its variations are included in most numerical models estimating the effects of natural versus anthropogenic factors for climate change. Solar wind causing geomagnetic disturbances is another solar activity agent whose role in climate change is not yet fully estimated but is a subject of intense research. For the purposes of climate modeling, it is essential to evaluate both the past and the future variations of solar irradiance and geomagnetic activity which are ultimately due to the variations of solar magnetic fields. Direct measurements of solar magnetic fields are available for a limited period, but can be reconstructed from geomagnetic activity records. Here we present a reconstruction of total solar irradiance based on geomagnetic data, and a forecast of the future irradiance and geomagnetic activity relevant for the expected climate change.

  15. ZOL 897 Ecosystem Ecology & Global Change (4 credits) Course Information and Requirements (Spring 2013)

    E-Print Network [OSTI]

    of climate change science, policies, and politics (Hensen 2011; see below). Texts: Lectures students even better in the future." #12;Schedule for ZOL 897 (2013) Jan 8 Overview of course; Introduction to ecosystem ecology and biogeochemistry Jan 10 Current understanding of climate change Jan 15 The Carbon Cycle

  16. Characteristics of Marine Aggregates in Shallow-water Ecosystems: Implications for Disease Ecology

    E-Print Network [OSTI]

    Allam, Bassem

    hydrophila, Pseudomonas aeruginosa, Escherichia coli, and Mycobacteria sp. These results have importantCharacteristics of Marine Aggregates in Shallow-water Ecosystems: Implications for Disease Ecology Smolowitz,4 Joseph Vallino,4 and Bassem Allam2 1 Department of Marine Sciences, University of Connecticut

  17. Soil surface properties in Mediterranean mountain ecosystems: Effects of environmental factors and implications of management

    E-Print Network [OSTI]

    Herrera, Carlos M.

    and implications of management C. Oyonarte a,*, V. Aranda b , P. Durante a a Department of Soil Science, CITE II hand, the type of plant cover and management do not influence the geochemical properties of the soil management of forests (Hopmans et al., 2005). Criteria for sustainability must consider ecosystem integrity

  18. Ecological Economics 41 (2002) 393408 SPECIAL ISSUE: The Dynamics and Value of Ecosystem Services: Integrating

    E-Print Network [OSTI]

    Vermont, University of

    2002-01-01T23:59:59.000Z

    Ecological Economics 41 (2002) 393­408 SPECIAL ISSUE: The Dynamics and Value of Ecosystem Services to the main ecological, socio­cultural and economic valuation methods. © 2002 Elsevier Science B.V. All rights: Integrating Economic and Ecological Perspectives A typology for the classification, description and valuation

  19. Ecosystem Service Supply and Vulnerability to Global Change in Europe Dagmar Schrter,1,2

    E-Print Network [OSTI]

    Gracia, Carlos

    , UK. 5 University of Oxford, Oxford, UK. 6 National Museum of Natural Sciences, CSIC, Madrid, Spain. 7. 17 Université Catholique de Louvain, Louvain-la-Neuve, Belgium. 18 Lund University, Lund, Sweden. 19 ecosystem models and scenarios of climate and land use greenhouse gas concentrations, climate factors

  20. Manufacturing Ecosystems and Keystone Technologies (Text Version)

    Broader source: Energy.gov [DOE]

    This is a text version of the Manufacturing Ecosystems and Keystone Technologies video, originally presented on March 12, 2012 at the MDF Workshop held in Chicago, Illinois.

  1. Human impacts on Caribbean coral reef ecosystems

    E-Print Network [OSTI]

    Hardt, Marah Justine

    2007-01-01T23:59:59.000Z

    The tissue biomass of common Caribbean reef corals. xv VITAJackson, JBC. “Structure of Caribbean coral reef communitiesHuman impacts on Caribbean coral reef ecosystems by Marah

  2. Energy, Water Ecosystem Engineering | Clean Energy | ORNL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy-Water Resource Systems SHARE Energy-Water Resource Systems Examine sustainable energy production and water availability in healthy ecosystems through technology development,...

  3. IntegratedScienceWorkingforYou Air, Water,

    E-Print Network [OSTI]

    IntegratedScienceWorkingforYou Air, Water, and Aquatic Environments Fire, Fuel, and Smoke Forest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Montana ecosystem restoration treatments . . . . .4 RPA Assessment: U .S . water supply shortage . . .4 Aviationpersonnelexposuretowildfirerisk . . . .5

  4. Exciting careers blending engineering, science, and ecology

    E-Print Network [OSTI]

    Tullos, Desiree

    Exciting careers blending engineering, science, and ecology New Opportunities Making the world://bee.oregonstate.edu/ecoe Ecological Engineering is: · Ecosystem restoration and habitat design at multiple scales · Watershed · Phytoremediation and bioremediation · Industrial ecology · Constructed wetlands and tidal marshlands · Mitigation

  5. Land and Atmospheric Science GRAD STUDENT HANDBOOK

    E-Print Network [OSTI]

    Minnesota, University of

    and managed ecosystems the sources, transport, and fate of pollutants in soil, air, and water: Environmental Sciences, Policy and Management Agricultural Industries and Marketing The Department occupies. The Department of Soil, Water, and Climate created this graduate program in 2009

  6. Curriculum in Spatial Sciences

    E-Print Network [OSTI]

    ...............................................................(3-0) 3 ESSM 406 Natural Resources Policy or RENR 470 Environmental Impact Assessment ..................................................................................................................(3-0) 6 American and Texas History electives 1 ......................................................................................(0-2) 1 43 Ecosystem Science and Management Core Courses AGEC 350 Environmental and Natural Resource

  7. The Online Ecosystem Promoting a Healthy IT Industry Microsoft and the Ecosystem In many ways, the Internet is an ecosystem. Just as organisms in a natural ecosystem coexist in complex

    E-Print Network [OSTI]

    Narasayya, Vivek

    The Online Ecosystem Promoting a Healthy IT Industry Microsoft and the Ecosystem In many ways, the Internet is an ecosystem. Just as organisms in a natural ecosystem coexist in complex interrelationships, participants in the online ecosystem are deeply interdependent. These participants include consumers; online

  8. Programs & User Facilities

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Facility Climate, Ocean, and Sea Ice Modeling (COSIM) Terrestrial Ecosystem and Climate Dynamics Fusion Energy Sciences Magnetic Fusion Experiments Plasma Surface...

  9. News | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    interested in improving the representation of terrestrial ecosystem processes in Earth system models. Soot science New study of soot could improve climate models Released: December...

  10. Petal Thicknesses and Shape Transformations in Blooming Lilies...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    SA Stephens T Varga SL Keller Capabilities: Microscopy Subsurface Flow and Transport Science Theme: Terrestrial & Subsurface Ecosystems Instruments: X-ray Computed Tomography...

  11. A Unified Multi-Scale Model for Pore-Scale Flow Simulations in...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Subsurface Flow and Transport Science Theme: Terrestrial & Subsurface Ecosystems Instruments: X-ray Computed Tomography Volume: 78 Issue: 1 Pages: 108-118 Publication year: 2014...

  12. Low Pore Connectivity in Natural Rock. | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    RadEMSL Science Theme: Biosystem Dynamics & Design Energy Materials & Processes Terrestrial & Subsurface Ecosystems Instruments: X-ray Computed Tomography Publication year: 2012...

  13. THE COMPOSITIONAL DIVERSITY OF EXTRASOLAR TERRESTRIAL PLANETS. II. MIGRATION SIMULATIONS

    SciTech Connect (OSTI)

    Carter-Bond, Jade C. [School of Physics, University of New South Wales, Kensington, NSW 2052 (Australia); O'Brien, David P. [Planetary Science Institute, 1700 East Fort Lowell, Tucson, AZ 85719 (United States); Raymond, Sean N., E-mail: j.bond@unsw.edu.au [Observatoire Aquitain des Sciences de l'Univers, Universite de Bordeaux, 2 rue de l'Observatoire, BP 89, F-33271 Floirac Cedex (France)

    2012-11-20T23:59:59.000Z

    Prior work has found that a variety of terrestrial planetary compositions are expected to occur within known extrasolar planetary systems. However, such studies ignored the effects of giant planet migration, which is thought to be very common in extrasolar systems. Here we present calculations of the compositions of terrestrial planets that formed in dynamical simulations incorporating varying degrees of giant planet migration. We used chemical equilibrium models of the solid material present in the disks of five known planetary host stars: the Sun, GJ 777, HD4203, HD19994, and HD213240. Giant planet migration has a strong effect on the compositions of simulated terrestrial planets as the migration results in large-scale mixing between terrestrial planet building blocks that condensed at a range of temperatures. This mixing acts to (1) increase the typical abundance of Mg-rich silicates in the terrestrial planets' feeding zones and thus increase the frequency of planets with Earth-like compositions compared with simulations with static giant planet orbits, and (2) drastically increase the efficiency of the delivery of hydrous phases (water and serpentine) to terrestrial planets and thus produce waterworlds and/or wet Earths. Our results demonstrate that although a wide variety of terrestrial planet compositions can still be produced, planets with Earth-like compositions should be common within extrasolar planetary systems.

  14. VQ5. Ecosystem and Human Health How do changes in ecosystem composi9on and func9on

    E-Print Network [OSTI]

    Christian, Eric

    VQ5. Ecosystem and Human Health How do changes in ecosystem composi9on Issue: ·Ecosystem condition affects the humans dependent on those ecosystems for life and livelihood. How do changes in ecosystem composition and function correlate with famine, exposure to harmful biotic

  15. Vacancy -Soil Science Climate change is a key challenge for both, science and society. The Cluster of Excellence

    E-Print Network [OSTI]

    Hamburg,.Universität

    1 Vacancy - Soil Science Climate change is a key challenge for both, science and society/in) with a strong background in Soil Science or terrestrial Biogeochemistry The successful applicant will study/she will conduct laboratory analysis, field research on permafrost soils and GIS analysis in thermokarst landscapes

  16. Adena Rissman Assistant Professor, Human Dimensions of Ecosystem Management

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Adena Rissman Assistant Professor, Human Dimensions of Ecosystem Management Department of Forest Professor: 2009-present Human Dimensions of Ecosystem Management Department of Forest and Wildlife Ecology, Integrative Graduate Education and Research Training (IGERT). "Novel ecosystems, rapid change, and no

  17. Understanding the scientific software ecosystem and its impact

    E-Print Network [OSTI]

    Howison, James

    Understanding the scientific software ecosystem and its impact: current and future measures James the information needs of domain scientists, software component producers, infrastructure providers, and ecosystem conclude with policy recommendations #12;designed to improve insight into the scientific software ecosystem

  18. Environmental Benefits and Performance Measures: Defining National Ecosystem Restoration and

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Environmental Benefits and Performance Measures: Defining National Ecosystem Restoration and how of Engineers #12;The Issue The Corps created an ecosystem restoration mission out of congressional authorities ecosystem services enough to reduce national welfare. Implementing projects under that mission requires

  19. Measures of the effects of agricultural practices on ecosystem services

    E-Print Network [OSTI]

    Minnesota, University of

    Measures of the effects of agricultural practices on ecosystem services Virginia H. Dalea,, Stephen of ecosystem services, including water quality, pollination, nutrient cycling, soil retention, carbon sequestration, and biodiversity conservation. In turn, ecosystem services affect agricultural productivity

  20. Incorporating Phaeocystis into a Southern Ocean ecosystem model

    E-Print Network [OSTI]

    Wang, Shanlin; Moore, J. Keith

    2011-01-01T23:59:59.000Z

    2004), A coupled ocean?ecosystem model of the Ross Sea: 1.2003), A coupled ocean?ecosystem model of the Ross Sea: 2.global upper ocean ecosystem?biogeochemistry models against

  1. Biodiversity and Ecosystem Functioning: Maintaining Natural Life Support Processes

    E-Print Network [OSTI]

    Minnesota, University of

    Biodiversity and Ecosystem Functioning: Maintaining Natural Life Support Processes Publishedbythe. ONeill, Harold A. Mooney, Osvaldo E. Sala, Amy J. Symstad, and David Tilman Biodiversity and Ecosystem Functioning: Maintaining Natural Life Support Processes Critical processes at the ecosystem level influence

  2. Final Independent External Peer Review Report Bubbly Creek Ecosystem Restoration

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report Bubbly Creek Ecosystem Restoration Feasibility Study National Planning Center of Expertise for Ecosystem Restoration Mississippi Valley Division Contract No. W Report Bubbly Creek Ecosystem Restoration Feasibility Study Prepared by Battelle 505 King Avenue Columbus

  3. Assembly history dictates ecosystem functioning: evidence from wood decomposer communities

    E-Print Network [OSTI]

    Bruns, Tom

    ForReview Only Assembly history dictates ecosystem functioning: evidence from wood decomposer change, community assembly, ecosystem functioning, New Zealand Nothofagus (beech) forests, priority dictates ecosystem functioning: evidence from wood decomposer communities Tadashi Fukami1,2,3 , Ian A

  4. ENVS 4000, Spring (Jan-Apr) 2006 Monitoring Ecosystems

    E-Print Network [OSTI]

    Johnson, Dan L.

    systems depend on ecosystems for food, materials, energy, purification, enjoyment, a sense of place challenges. Adaptive ecosystem management depends on knowledge of system states and dynamics, and therefore and models for ecosystem monitoring and management, including Environmental Benefit Analysis, Environmental

  5. Isotope powered Stirling generator for terrestrial applications

    SciTech Connect (OSTI)

    Tingey, G.L.; Sorensen, G.C. [Pacific Northwest Lab., Richland, WA (United States); Ross, B.A. [Stirling Technology Co., Richland, WA (United States)

    1995-01-01T23:59:59.000Z

    An electric power supply, small enough to be man-portable, is being developed for remote, terrestrial applications. This system is designed for an operating lifetime of five years without maintenance or refueling. A small Radioisotope Stirling Generator (RSG) has been developed. The energy source of the generator is a 60 watt plutonium-238 fuel clad used in the General Purpose Heat Sources (GPHS) developed for space applications. A free piston Stirling Engine drives a linear alternator to convert the heat to power. The system weighs about 7.5 kg and produces 11 watts AC power with a conversion efficiency of 18.5%. Two engine models have been designed, fabricated, and tested to date: (a) a developmental model instrumented to confirm and test parameters, and (b) an electrically heated model with an electrical heater equipped power input leads. Critical components have been tested for 10,000 to 20,000 hours. One complete generator has been operating for over 11,000 hours. Radioisotope heated prototypes are expected to be fabricated and tested in late 1995.

  6. Hybrid APNT: Terrestrial Radionavigation to Support Future Aviation Needs

    E-Print Network [OSTI]

    Stanford University

    University and the director of the Stanford GPS Laboratory. 1. INTRODUCTION The Federal Aviation Administration (FAA) Alternative Positioning Navigation & Timing (APNT) program is developing and examining1 Hybrid APNT: Terrestrial Radionavigation to Support Future Aviation Needs Sherman Lo, Yu

  7. Remote sensing of terrestrial tropospheric aerosols from aircraft and satellites

    E-Print Network [OSTI]

    Remote sensing of terrestrial tropospheric aerosols from aircraft and satellites M I Mishchenko1 instruments suitable for aerosol remote sensing and give examples of aerosol retrievals obtained forcing directly by absorbing and reflecting sunlight, thereby cooling or heating the atmosphere

  8. aerobic microbial ecosystems: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    78 Ecosystem Viable Yields CERN Preprints Summary: The World Summit on Sustainable Development (Johannesburg, 2002) encouraged the application of the ecosystem approach by 2010....

  9. Ecosystem-Based Management Tools Network Webinar: Community-Based...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ecosystem-Based Management Tools Network Webinar: Community-Based Sea Level Rise Projections Ecosystem-Based Management Tools Network Webinar: Community-Based Sea Level Rise...

  10. Evaluating the Contribution of Climate Forcing and Forest Dynamics to Accelerating Carbon Sequestration by Forest Ecosystems in the Northeastern U.S.: Final Report

    SciTech Connect (OSTI)

    Munger, J. William [Harvard University, SEAS; Foster, David R. [Harvard University, Harvard Forest; Richardson, Andrew D. [Harvard University, OEB

    2014-10-01T23:59:59.000Z

    This report summarizes work to improve quantitative understanding of the terrestrial ecosystem processes that control carbon sequestration in unmanaged forests It builds upon the comprehensive long-term observations of CO2 fluxes, climate and forest structure and function at the Harvard Forest in Petersham, MA. This record includes the longest CO2 flux time series in the world. The site is a keystone for the AmeriFlux network. Project Description The project synthesizes observations made at the Harvard Forest HFEMS and Hemlock towers, which represent the dominant mixed deciduous and coniferous forest types in the northeastern United States. The 20+ year record of carbon uptake at Harvard Forest and the associated comprehensive meteorological and biometric data, comprise one of the best data sets to challenge ecosystem models on time scales spanning hourly, daily, monthly, interannual and multi-decadal intervals, as needed to understand ecosystem change and climate feedbacks.

  11. Impact of elevated CO2 on a Florida Scrub-oak Ecosystems

    SciTech Connect (OSTI)

    Drake, Bert G

    2013-01-01T23:59:59.000Z

    Since May of 1996, we have conducted an experiment in Florida Scrub Oak to determine the impact of elevated atmospheric CO2 and climate change on carbon, water, and nutrient cycling in this important terrestrial ecosystem. Florida scrub oak is the name for a collective of species occupying much of the Florida peninsula. The dominant tree species are oaks and the dwarf structure of this community makes it an excellent system in which to test hypotheses regarding the potential capacity of woody ecosystems to assimilate and sequester anthropogenic carbon. Scrub oak is fire dependent with a return cycle of 10-15 years, a time which would permit an experiment to follow the entire cycle. Our site is located on Cape Canaveral at the Kennedy Space Center, Florida. After burning in 1995, we built 16 open top chambers, half of which have been fumigated with pure CO2 sufficient to raise the concentration around the plants to 350 ppm above ambient. In the intervening 10 years we have non destructively measured biomass of shoots and roots, ecosystem gas exchange using chambers and eddy flux, leaf photosynthesis and respiration, soil respiration, and relevant environmental factors such as soil water availability, temperature, light, etc. The overwhelming result from analysis of our extensive data base is that elevated CO2 has had a profound impact on this ecosystem that, overall, has resulted in increased carbon accumulation in plant shoots, roots and litter. Our measurements of net ecosystem gas exchange also indicate that the ecosystem has accumulated carbon much in excess of the increased biomass or soil carbon suggesting a substantial export of carbon through the porous, sandy soil into the water table several meters below the surface. A major discovery is the powerful interaction between the stimulation of growth, photosynthesis, and respiration by elevated CO2 and other environmental factors particularly precipitation and nitrogen. Our measurements focused attention on: stimulation of ecosystem gas exchange by elevated atmospheric CO2; the architecture and distribution of coarse roots using the novel approach of ground penetrating radar; mechanisms for the disturbance of soil carbon pools via the "priming" effect; and how interannual and seasonal variation in precipitation alters the physiological response of key species to elevated CO2. This project was a collaboration between research groups at the Smithsonian Institution, NASA, the Dynamac Corporation, Northern Arizona University, and Old Dominion University in Norfolk, Virginia.

  12. Tidal heating in multilayered terrestrial exoplanets

    SciTech Connect (OSTI)

    Henning, Wade G.; Hurford, Terry, E-mail: wade.g.henning@nasa.gov [NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771 (United States)

    2014-07-01T23:59:59.000Z

    The internal pattern and overall magnitude of tidal heating for spin-synchronous terrestrial exoplanets from 1 to 2.5 R{sub E} is investigated using a propagator matrix method for a variety of layer structures. Particular attention is paid to ice-silicate hybrid super-Earths, where a significant ice mantle is modeled to rest atop an iron-silicate core, and may or may not contain a liquid water ocean. We find multilayer modeling often increases tidal dissipation relative to a homogeneous model, across multiple orbital periods, due to the ability to include smaller volume low viscosity regions, and the added flexure allowed by liquid layers. Gradations in parameters with depth are explored, such as allowed by the Preliminary Earth Reference Model. For ice-silicate hybrid worlds, dramatically greater dissipation is possible beyond the case of a silicate mantle only, allowing non-negligible tidal activity to extend to greater orbital periods than previously predicted. Surface patterns of tidal heating are found to potentially be useful for distinguishing internal structure. The influence of ice mantle depth and water ocean size and position are shown for a range of forcing frequencies. Rates of orbital circularization are found to be 10-100 times faster than standard predictions for Earth-analog planets when interiors are moderately warmer than the modern Earth, as well as for a diverse range of ice-silicate hybrid super-Earths. Circularization rates are shown to be significantly longer for planets with layers equivalent to an ocean-free modern Earth, as well as for planets with high fractions of either ice or silicate melting.

  13. Beneficial Bees and Pesky Pests: Three Essays on Ecosystem Services to Agriculture

    E-Print Network [OSTI]

    Gross, Brian James

    2009-01-01T23:59:59.000Z

    region considered. Ecosystem service valuations can usefullyand valuation of ecosystem functions, goods and services.

  14. Agricultural and Forest Meteorology 182183 (2013) 7690 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Chen, Jiquan

    2013-01-01T23:59:59.000Z

    of the carbon and water fluxes of terrestrial ecosystems in China are not well understood due to the lack covariance flux sites across China, and examined the carbon fluxes, evapotranspiration (ET), and water useDirect Agricultural and Forest Meteorology journal homepage: www.elsevier.com/locate/agrformet Carbon fluxes

  15. Final Report to DOE’s Office of Science (BER) submitted by Ram Oren (PI) of DE-FG02-00ER63015 (ended on 09/14/2009) entitled “Controls of Net Ecosystem Exchange at an Old Field, a Pine Plantation, & a Hardwood Forest under Identical Climatic & Edaphic Conditions”

    SciTech Connect (OSTI)

    Oren, Ram; Oishi, AC; Palmroth, Sari; Butnor, JR; Johnsen, KH

    2014-03-17T23:59:59.000Z

    The project yielded papers on fluxes (energy, water and carbon dioxide)between each ecosystem and the atmosphere, and explained the temporal dynamics of fluxes based on intrinsic (physiology, canopy leaf area and structure) and extrinsic (atmospheric and edaphic conditions). Comparisons between any two of the ecosystems, and among all three followed, attributing differences in behavior to different patterns of phenology and differential sensitivities to soil and atmospheric humidity. Finally, data from one-to-three of the ecosystems (incorporated into FluxNet data archive) were used in syntheses across AmeriFlux sites and even more broadly across FluxNet sites.

  16. Mapping ecosystem functions to the valuation of ecosystem services: implications of species–habitat associations for coastal land-use decisions

    E-Print Network [OSTI]

    Sanchirico, James N.; Mumby, Peter

    2009-01-01T23:59:59.000Z

    EB et al (2005) Valuing ecosystem services: toward bettershaping landscapes and ecosystems for human welfare. Scienceanalyzing, and managing ecosystem services. Front Ecol

  17. "Ecosystem Services, Biodiversity and Poverty Reduction

    E-Print Network [OSTI]

    "Ecosystem Services, Biodiversity and Poverty Reduction: Is conservation the answer?" Paul van for the foreseeable future. #12;John Beddington's "Perfect Storm" Population Increase Poverty Reduction Food Security Globalisation Climate Change Health Water Security Poverty Alleviation Finance Urbanisation Population Energy

  18. Sustaining multiple ecosystem functions in grassland communities requires higher biodiversity

    E-Print Network [OSTI]

    Zavaleta, Erika

    Sustaining multiple ecosystem functions in grassland communities requires higher biodiversity Erika (sent for review July 27, 2009) Society places value on the multiple functions of ecosystems from ecosystems to provide threshold levels of up to eight ecosystem functions simultaneously. Across years

  19. Ecosystem type affects interpretation of soil nematode community measures

    E-Print Network [OSTI]

    Neher, Deborah A.

    Ecosystem type affects interpretation of soil nematode community measures D.A. Neher a,*, J. Wu b understanding of performance among major ecosystem types is necessary before nematode community indices can and agricultural ecosystems; (2) compare nematode community composition among and within ecosystem types and report

  20. Volume 3 Number 2 2011 Modeling an Innovation Ecosystem with

    E-Print Network [OSTI]

    Kusiak, Andrew

    Volume 3 · Number 2 · 2011 55 Modeling an Innovation Ecosystem with Adaptive Agents* Joseph Engler1 of innovation and its place in a global economy or ecosystem is presented. The model utilizes simple agents-based model of an innovation ecosystem is presented. The ecosystem is considered as an environment in which

  1. Functional consequences of realistic biodiversity changes in a marine ecosystem

    E-Print Network [OSTI]

    Brody, James P.

    Functional consequences of realistic biodiversity changes in a marine ecosystem Matthew E. S for the goods and services provided by natural ecosystems. However, relatively few studies have evalu- ated- ity to loss and their contributions to ecosystem functioning. ammonium diversity ecosystem function

  2. Economic Value of Ecosystem Services Provided by Agricultural Lands

    E-Print Network [OSTI]

    Demers, Nora Egan

    No reward for agricultural producers to provide ecosystem services 7 #12;Methods for Valuing Ecosystem's ecosystem service provision Contingent valuation: surveying people about their willingness-to-pay / accept in ecosystem service provision Replacement costs methods: costs of mitigating / replacing the service Factor

  3. Radionuclides in the terrestrial ecosystem near a Canadian uranium mill -- Part 3: Atmospheric deposition rates (pilot test)

    SciTech Connect (OSTI)

    Thomas, P.A.

    2000-06-01T23:59:59.000Z

    Atmospheric deposition rates of uranium series radionuclides were directly measured at three sites near the operating Key Lake uranium mill in northern Saskatchewan. Sites impacted by windblown tailings and mill dusts had elevated rates of uranium deposition near the mill and elevated {sup 226}Ra deposition near the tailings compared to a control site. Rainwater collectors, dust jars, and passive vinyl collectors previously used at the Ranger Mine in Australia were pilot-tested. Adhesive vinyl surfaces (1 m{sup 2}) were oriented horizontally, vertically, and facing the ground as a means of measuring gravitational settling, wind impaction, and soil resuspension, respectively. Although the adhesive glue on the vinyls proved difficult to digest, relative differences in deposition mode were found among radionuclides and among sites. Dry deposition was a more important transport mechanism for uranium, {sup 226}Ra, and {sup 210}Pb than rainfall, while more {sup 210}Po was deposited with rainfall.

  4. Evaluation of terrestrial microcosms for detection, fate, and survival analysis of genetically engineered microorganisms and their recombinant genetic material

    SciTech Connect (OSTI)

    Fredrickson, J.K.; Seidler, R.J.

    1989-02-01T23:59:59.000Z

    The research included in this document represents the current scientific information available regarding the applicability of terrestrial microcosms and related methodologies for evaluating detection methods and the fate and survival of microorganisms in the environment. The three terrestrial microcosms described in this document were used to evaluate the survival and fate of recombinant bacteria in soils and in association with plant surfaces and insects and their transport through soil with percolating water and root systems, and to test new methods and procedures to improve detection and enumeration of bacteria in soil. Simple (potting soil composed of peat mix and perlite, lacking environmental control and monitoring) and complex microcosms (agricultural soil with partial control and monitoring of environmental conditions) were demonstrated to be useful tools for preliminary assessments of microbial viability in terrestrial ecosystems. These studies evaluated the survival patterns of Enterobacter cloacae (pBR322) in soil and on plant surfaces and the ingestion of this same microorganism by cutworms and survival in the foregut and frass. The Versacore microcosm design was used to monitor the fate and competitiveness of genetically engineered bacteria in soil. Both selective media and gene probes were used successfully to follow the fate of two recombinant Pseudomonas sp. introduced into Versacore microcosms. Intact soil-core microcosms were employed to evaluate the fate and transport of genetically altered Azospirillum sp. and Pseudomonas sp. in soil and the plant rhizosphere. The usefulness of these various microcosms as a tool for risk assessment is underscored by the ease in obtaining soil from a proposed field release site to evaluate subsequent GEM fate and survival.

  5. Evaluation of terrestrial microcosms for assessing the fate and effects of genetically engineered microorganisms on ecological processes

    SciTech Connect (OSTI)

    Fredrickson, J.K.; Bentjen, S.A.; Bolton, H. Jr.; Li, S.W.; Ligotke, M.W.; McFadden, K.M.; Van Voris, P.

    1989-04-01T23:59:59.000Z

    This project evaluates and modifies the existing US Environmental Protection Agency's Office of Pesticides and Toxic Substances (EPA/OPTS) terrestrial microcosm test system and test protocols such that they can be used to determine the environmental fate and ecological hazards of genetically engineered microorganisms (GEMs). The intact soil-core microcosm represents terrestrial ecosystems, and when coupled with appropriate test protocols, such microcosms may be appropriate to define and limit risks associated with the intentional release of GEMs. The terrestrial microcosm test system was used to investigate the survival and transport of two model GEMs (Azospirillum lipoferum and Pseudomonas sp. Tn5 mutants) to various trophic levels and niches and through intact soil cores. Subsequent effects on nutrient cycling and displacement of indigenous microorganisms were evaluated. The model organisms were a diazotrophic root-colonizing bacterium (A. lipoferum) and a wheat root growth-inhibiting rhizobacterium (Pseudomonas sp.). The transposable element Tn5 was used as a genetic marker for both microorganisms in two separate experiments. The organisms were subjected to transposon mutagenesis using a broad host-range-mobilizable suicide plasmid. The transposon Tn5 conferred levels of kanamycin resistance up to 500 ..mu..g/ml (Pseudomonas sp.), which allowed for selection of the bacteria from environmental samples. The presence of Tn5 DNA in the genome of the model GEMs also allowed the use of Tn5 gene probes to confirm and enumerate the microorganisms in different samples from the microcosms. Two types of root growth-inhibiting Pseudomonas sp. Tn5 mutants were obtained and used in microcosm studies: those that lacked the ability to inhibit either wheat root growth or the growth of other microorganisms in vitro (tox/sup /minus//) and those which retained these properties (tox/sup +/). 53 refs., 7 figs., 6 tabs.

  6. Hansen et al. Edge effects across ecosystem types Ecosystem Biomass as a Framework for Predicting Habitat Fragmentation Effects

    E-Print Network [OSTI]

    Hansen, Andrew J.

    Hansen et al. Edge effects across ecosystem types 1 Ecosystem Biomass as a Framework for Predicting Habitat Fragmentation Effects Running Head: Edge effects across ecosystem types Key Words: biomass 59717-3460. hansen@montana.edu 25 February 2008 #12;Hansen et al. Edge effects across ecosystem types 2

  7. Argonne Terrestrial Carbon Cycle Data from Batavia Prairie and Agricultural Sites

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Matamala, Roser [ANL; Jastrow, Julie D.; Lesht, Barry [ANL; Cook, David [ANL; Pekour, Mikhail [ANL; Gonzalez-Meler, Miquel A. [University of Illinois at Chicago

    Carbon dioxide fluxes and stocks in terrestrial ecosystems are key measurements needed to constrain quantification of regional carbon sinks and sources and the mechanisms controlling them. This information is required to produce a sound carbon budget for North America. This project examines CO2 and energy fluxes from agricultural land and from restored tallgrass prairie to compare their carbon sequestration potentials. The study integrates eddy covariance measurements with biometric measurements of plant and soil carbon stocks for two systems in northeastern Illinois: 1) long-term cultivated land in corn-soybean rotation with conventional tillage, and 2) a 15 year-old restored prairie that represents a long-term application of CRP conversion of cultivated land to native vegetation. The study contributes to the North American Carbon Program (NACP) by providing information on the magnitude and distribution of carbon stocks and the processes that control carbon dynamics in cultivated and CRP-restored land in the Midwest. The prairie site has been functioning since October 2004 and the agricultural site since July 2005. (From http://www.atmos.anl.gov/ FERMI/index.html)

  8. Terrestrial Planet Formation in Extra-Solar Planetary Systems

    E-Print Network [OSTI]

    Sean N. Raymond

    2008-01-16T23:59:59.000Z

    Terrestrial planets form in a series of dynamical steps from the solid component of circumstellar disks. First, km-sized planetesimals form likely via a combination of sticky collisions, turbulent concentration of solids, and gravitational collapse from micron-sized dust grains in the thin disk midplane. Second, planetesimals coalesce to form Moon- to Mars-sized protoplanets, also called "planetary embryos". Finally, full-sized terrestrial planets accrete from protoplanets and planetesimals. This final stage of accretion lasts about 10-100 Myr and is strongly affected by gravitational perturbations from any gas giant planets, which are constrained to form more quickly, during the 1-10 Myr lifetime of the gaseous component of the disk. It is during this final stage that the bulk compositions and volatile (e.g., water) contents of terrestrial planets are set, depending on their feeding zones and the amount of radial mixing that occurs. The main factors that influence terrestrial planet formation are the mass and surface density profile of the disk, and the perturbations from giant planets and binary companions if they exist. Simple accretion models predicts that low-mass stars should form small, dry planets in their habitable zones. The migration of a giant planet through a disk of rocky bodies does not completely impede terrestrial planet growth. Rather, "hot Jupiter" systems are likely to also contain exterior, very water-rich Earth-like planets, and also "hot Earths", very close-in rocky planets. Roughly one third of the known systems of extra-solar (giant) planets could allow a terrestrial planet to form in the habitable zone.

  9. To Revalue the Rural? Transformation of the Mexican Federal Payments for Ecosystem Services Programs from Neoliberal Notion to Development Dogma

    E-Print Network [OSTI]

    Shapiro, Elizabeth N

    2010-01-01T23:59:59.000Z

    goals and the valuation of ecosystem services. Ecosystems 3:Kumar. 2008. Valuation of ecosystem services: A psycho-

  10. Department of Ecosystem Science & SOIL RESEARCH CLUSTER LABORATORY

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    , Organometallics, Gasoline and fuels, Coal and coke, Graphite and carbides, Metals and alloys · Operator: Julie

  11. Silvia Alvarez-Clare Department of Ecosystem & Conservation Sciences

    E-Print Network [OSTI]

    Kemner, Ken

    , University of Florida, $2,000. PUBLICATIONS Cleveland, C. C, A. R. Townsend, P. Taylor, S. Alvarez-Clare, M. Porder, S. C. Reed, C. A. Sierra, W. L. Silver, , E. J. R. Tanner & W. R. Wieder (2011). Relationships and foliar nutrients across nine Costa Rican forests. Biotropica 43: 433 ­441. Knapp, C. R., S. Alvarez

  12. Six Lessons Learned in Applying Science in Coastal Ecosystem Restoration

    E-Print Network [OSTI]

    Boesch, Donald F.

    2013-01-01T23:59:59.000Z

    on the BP Deepwater Horizon Oil Spill and Offshore Drilling.on the BP Deepwater Horizon Oil Spill and Offshorethe effects of the BP Deepwater Horizon oil spill, both as a

  13. Gulf of Maine Strategic Regional Ocean Science Plan

    E-Print Network [OSTI]

    Pederson, Judith

    The Gulf of Maine Regional Ocean Science Initiative evolved from an awareness of the importance of integrated approaches to addressing ecological, environmental, and social influences in coastal and marine ecosystems at ...

  14. soils.ifas.ufl.edu Soil & Water Science Department

    E-Print Network [OSTI]

    Watson, Craig A.

    interested in courses that emphasize sustainability, resource management, valuation of ecosystem servicessoils.ifas.ufl.edu UF/IFAS Soil & Water Science Department DISTANCE EDUCATION GRADUATE PROGRAMS #12;SOIL AND WATER SCIENCE DEPARTMENT The Soil and Water Science Department at the University of Florida

  15. BIG BEAR SOLAR OBSERVATORY CENTER FOR SOLAR-TERRESTRIAL RESEARCH

    E-Print Network [OSTI]

    BIG BEAR SOLAR OBSERVATORY CENTER FOR SOLAR-TERRESTRIAL RESEARCH Faculty Position in Solar Physics, New Jersey Institute of Technology A tenure track faculty position in solar physics is available of NJIT's program in solar physics, visit http://solar.njit.edu. Applicants are required to have a Ph

  16. Estimating terrestrial uranium and thorium by antineutrino flux measurements

    E-Print Network [OSTI]

    Mcdonough, William F.

    Estimating terrestrial uranium and thorium by antineutrino flux measurements Stephen T. Dye, and approved November 16, 2007 (received for review July 11, 2007) Uranium and thorium within the Earth produce of uranium and thorium concentrations in geological reservoirs relies largely on geochemi- cal model

  17. Threats from Climate Change to Terrestrial Vertebrate Hotspots in Europe

    E-Print Network [OSTI]

    Zimmermann, Niklaus E.

    Threats from Climate Change to Terrestrial Vertebrate Hotspots in Europe Luigi Maiorano1 to extreme climates. Our results outline that the Mediterranean basin represents both an important hotspot change projected to occur over the coming decades, especially in the Mediterranean bioregion, posing

  18. Building sustainable ecosystem-oriented architectures

    E-Print Network [OSTI]

    Bassil, Youssef

    2012-01-01T23:59:59.000Z

    Currently, organizations are transforming their business processes into e-services and service-oriented architectures to improve coordination across sales, marketing, and partner channels, to build flexible and scalable systems, and to reduce integration-related maintenance and development costs. However, this new paradigm is still fragile and lacks many features crucial for building sustainable and progressive computing infrastructures able to rapidly respond and adapt to the always-changing market and environmental business. This paper proposes a novel framework for building sustainable Ecosystem- Oriented Architectures (EOA) using e-service models. The backbone of this framework is an ecosystem layer comprising several computing units whose aim is to deliver universal interoperability, transparent communication, automated management, self-integration, self-adaptation, and security to all the interconnected services, components, and devices in the ecosystem. Overall, the proposed model seeks to deliver a co...

  19. Supporting Water, Ecological, and Transportation Systems in the Great Lakes Basin Ecosystem

    E-Print Network [OSTI]

    Beck, Judy; Kamke, Sherry; Majerus, Kimberly

    2007-01-01T23:59:59.000Z

    within a larger natural ecosystem. An Eco-Logical guide waschanges in the Great Lakes ecosystem from the introductionfor a State of the Lakes Ecosystem Conference (SOLEC) Pre-

  20. Evaluating Ocean Management Systems to Facilitate the Development of Ecosystem-Based Management

    E-Print Network [OSTI]

    Young, Oran R

    2009-01-01T23:59:59.000Z

    the Development of Ecosystem-Based Management Preparergovernance to assist ecosystem-based management initiativesCurrent Large Marine Ecosystem. This geographic scope

  1. Species diversity and foundation species: Potential indicators of fisheries yields and marine ecosystem functioning.

    E-Print Network [OSTI]

    Bracken, Matthew E.S.; Bracken, B. E.; Rogers-Bennett, Laura Dr.

    2007-01-01T23:59:59.000Z

    of biodiversity on ecosystem functioning: a consensus ofWood. 1995. Biodiversity and ecosystem functioning: coastalSection 6. Biodiversity and ecosystem function: ecosys- tem

  2. Floodplain restoration planning for a changing climate: Coupling flow dynamics with ecosystem benefits

    E-Print Network [OSTI]

    Matella, Mary

    2013-01-01T23:59:59.000Z

    Nonlinear dynamics in ecosystem response to climatic change:alteration within ecosystems. Conservation Biology 10: 1163-Paruelo, 1998. The value of ecosystem services: putting the

  3. Hydraulic controls on river biota and the consequence for ecosystem processes.

    E-Print Network [OSTI]

    Limm, Michael Peter

    2009-01-01T23:59:59.000Z

    of macroinvertebrates in stream ecosystem function. Annualin marine and freshwater ecosystems. Canadian Journal ofanimals in freshwater ecosystems. Annual Review of Ecology

  4. ECO-LOGICAL: AN ECOSYSTEM APPROACH TO DEVELOPING TRANSPORTATION INFRASTRUCTURE PROJECTS IN A CHANGING ENVIRONMENT

    E-Print Network [OSTI]

    Bacher-Gresock, Bethaney; Schwarzer, Julianne Siegel

    2009-01-01T23:59:59.000Z

    2006. Eco-Logical: An Ecosystem Approach to Developinghabitat and essential ecosystems. There are a variety ofdo very little to promote ecosystem sustainability. Concern

  5. An Assessment of Ecosystem Services Provided by Street Trees in Bangkok, Thailand

    E-Print Network [OSTI]

    SOONSAWAD, NATTHANIJ

    2014-01-01T23:59:59.000Z

    and the valuation of ecosystem services. Ecologicalquantification and valuation of ecosystem services using i-their valuation Although research on ecosystem services has

  6. Linking ecosystem services, rehabilitation, and river hydrogeomorphology

    E-Print Network [OSTI]

    Thorp, James H.

    2010-01-01T23:59:59.000Z

    of all services for all FPZs combined. Table 1 includes only 5 of the 14 to 15 variables used to delineate FPZs in our river-typing methods, but these are sufficient to illustrate why ecosystem services should vary among FPZs. The first three.... Ecological Applications 13: 1762–1772. Loomis J, Kent P, Strange L, Fausch K, Covich A. 2000. Measuring the total economic value of restoring ecosystem services in an impaired river basin: Results from contingent valuation survey. Ecological Economics 33: 103...

  7. [A field study of the effects of elevated CO2 concentration on physiology an ecosystem processes in Chesapeake Bay Wetland]. [Annual] progress report, 1989--1990

    SciTech Connect (OSTI)

    Not Available

    1990-12-31T23:59:59.000Z

    Research during 1988--1989 focused on several new aspects of the response of the salt marsh ecosystem to elevated CO{sub 2} of the effect of CO{sub 2} on biomass production into above and belowground tissues, nitrogen content, light response of photosynthesis of single leaves, leaf water potential and carbon dioxide and water vapor exchange between the plant canopy and the ambient air. Result from the work in 87 and 88 had shown that the C{sub 3} plant, Scirpus olneyi, responded vigorously to elevated CO{sub 2} but the two C{sub 4} species, Spartina patens and Distichlis spicata did not. The responses of photosynthesis were also reflected in the canopy and ecosystem processes: Carbon accumulated in the C{sub 3} community into belowground tissues but not in the C{sub 4} community suggesting that the main factor in the ecosystem responses would be photosynthesis and that the environmental controls on this process would determine the long-term ecosystem responses to rising CO{sub 2}. The main question at the outset of this project was: How much more carbon will be accumulated in the salt marsh ecosystem in a high CO{sub 2} atmosphere than is being accumulated under present CO{sub 2} concentration? This experiment has raised the possibility that rising CO{sub 2} will make the salt marsh ecosystem a bigger sink for carbon than we have previously thought it to be. By extrapolation, this finding suggests that other, terrestrial ecosystems may also become larger sinks for carbon.

  8. Radio emissions from terrestrial gamma-ray flashes Joseph R. Dwyer1

    E-Print Network [OSTI]

    Cummer, Steven A.

    . Introduction 1.1. TGF Theory Overview [2] Terrestrial gamma-ray flashes (TGFs) are bright bursts of gamma raysRadio emissions from terrestrial gamma-ray flashes Joseph R. Dwyer1 and Steven A. Cummer2 Received frequency (RF) emissions by terrestrial gamma-ray flashes (TGFs) is developed. These radio emissions, which

  9. Measurements and implications of the relationship between lightning and terrestrial gamma ray flashes

    E-Print Network [OSTI]

    Cummer, Steven A.

    the discovery of short bursts of gamma rays originating from Earth, called terrestrial gamma ray flashes (TGFsMeasurements and implications of the relationship between lightning and terrestrial gamma ray associated with 26 terrestrial gamma ray flashes (TGFs) recorded by the RHESSI satellite over the Caribbean

  10. Semi-Immersive Space Mission Design and Visualization: Case Study of the "Terrestrial Planet Finder" Mission.

    E-Print Network [OSTI]

    Semi-Immersive Space Mission Design and Visualization: Case Study of the "Terrestrial Planet Finder of Technology Pasadena, CA 91125 Abstract This paper addresses visualization issues of the Terrestrial Planet the visualization of the Terrestrial Planet Finder Mission (TPF) as a case study to identify and analyze

  11. International Conference on Machine Control & Guidance 2008 1 Kinematic Surface Analysis by Terrestrial Laser Scanning

    E-Print Network [OSTI]

    by Terrestrial Laser Scanning Hans-Martin ZOGG*, David GRIMM* ETH Zurich, Switzerland Abstract This paper presents terrestrial laser scanning with emphasis on kinematic surface analysis. Besides an overview of terrestrial laser scanning in general, the 2D-laser scanner SICK LMS200-30106 is introduced as well

  12. Sustainability of terrestrial carbon sequestration: A case study in Duke Forest with inversion approach

    E-Print Network [OSTI]

    DeLucia, Evan H.

    Sustainability of terrestrial carbon sequestration: A case study in Duke Forest with inversion of terrestrial carbon (C) sequestration is critical for the success of any policies geared toward stabilizing. Ellsworth, A. Finzi, J. Lichter, and W. H. Schlesinger, Sustainability of terrestrial carbon sequestration

  13. Managing for ocean biodiversity to sustain marine ecosystem services

    E-Print Network [OSTI]

    Palumbi, Stephen R.; Sandifer, Paul A.; Allan, J. David; Beck, Michael W.; Fautin, Daphne G.; Fogarty, Michael J.; Halpern, Benjamin S.; Incze, Lewis S.; Leong, Jo-Ann C.; Norse, Elliott; Stachowicz, John J.; Wall, Diana H.

    2009-05-01T23:59:59.000Z

    Managing a complex ecosystem to balance delivery of all of its services is at the heart of ecosystem-based management. But how can this balance be accomplished amidst the conflicting demands of stakeholders, managers, and policy makers? In marine...

  14. Main Ecosystem Characteristics and Distribution of Wetlands in Boreal and

    E-Print Network [OSTI]

    9 Main Ecosystem Characteristics and Distribution of Wetlands in Boreal and Alpine Landscapes) was conducted during 25 years and generated results that indicate that about 15% of #12;Ecosystems Biodiversity

  15. UNEP MOOC Disasters and Ecosystems: Resilience in a Changing Climate

    Broader source: Energy.gov [DOE]

    The United Nations Environment Programme (UNEP) is launching the first Massive Open Online Course (MOOC) on Disasters and Ecosystems, which features ecosystem-based solutions for disaster risk reduction and climate change adaptation, case studies, guest speakers, etc.

  16. ORIGINAL ARTICLE Ecosystem services and hydroelectricity in Central America

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    and spatial distribution of ecosystems and users, the spatial relation- ships between them, and the presence; Millennium Ecosystem Assessment 2003). Despite their importance for human well-being, eco- system services

  17. ANTARCTIC CLIMATE & ECOSYSTEMS COOPERATIVE RESEARCH CENTRE

    E-Print Network [OSTI]

    Phipps, Steven J.

    , including economic damage or loss or injury to person or property, regardless of whether the Antarctic Centre Program. A U S T R A L I A ACE also has formal partnerships with the Department of the Environment be addressed to: The Manager Communications Antarctic Climate & Ecosystems Cooperative Research Centre Private

  18. Modeling nighttime ecosystem respiration from measured CO2 concentration and air temperature profiles using inverse methods

    E-Print Network [OSTI]

    Modeling nighttime ecosystem respiration from measured CO2 concentration and air temperature ecosystem carbon budgets from micrometeorological methods remains nighttime ecosystem respiration theory to infer the two components of ecosystem respiration (aboveground and forest floor) from measured

  19. Comprehensive Monitoring of CO2 Sequestration in Subalpine Forest Ecosystems

    E-Print Network [OSTI]

    Han, Richard Y.

    , carbon sequestration, ecosystem, multi-tier, multi-modal, multi-scale, self organized, sensor array to comprehensively monitor ecosystem carbon sequestration. The network consists of CO2, Weather (pressureComprehensive Monitoring of CO2 Sequestration in Subalpine Forest Ecosystems and Its Relation

  20. 5 Ecosystem exchange measurement methods 5.3 Introduction

    E-Print Network [OSTI]

    5 Ecosystem exchange measurement methods 5.3 Introduction To understand the behaviour of an ecosystem it is important to know its resource requirements. Though numerous resources are mobilized models have attempted to represent the growth of entire plants or of entire ecosystems based on physical

  1. Managing a Software Ecosystem Using a Multiple Software Product Line

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Managing a Software Ecosystem Using a Multiple Software Product Line: a Case Study on Digital increases the number of software ecosystems: software platforms developed and maintained in a decentralized YourCast from a single system to a medium- scale ecosystem, we show how organizing it as a multiple

  2. Feeding TEL: Building an Ecosystem Around BuRST

    E-Print Network [OSTI]

    Hammerton, James

    Feeding TEL: Building an Ecosystem Around BuRST to Convey Publication Metadata Peter Kraker1, Austria {pkraker, afessl, phoefler, slind}@know-center.at Abstract. In this paper we present an ecosystem of this ecosystem, semantically enriched RSS feeds are used for dissemination. These feeds are complemented

  3. California Water Policy Seminar Series Reconciling Ecosystem And Economy

    E-Print Network [OSTI]

    Ferrara, Katherine W.

    California Water Policy Seminar Series Reconciling Ecosystem And Economy Winter 2014 Mondays, 4 Applying reconciliation ecology to aquatic ecosystems in California. Peter Moyle and Melanie Truan, UC of Chief Counsel, State Water Resources Control Board Feb. 10 Reconciling ecosystem goals for San Francisco

  4. Discovering Ecosystem Models from Time-Series Data

    E-Print Network [OSTI]

    Langley, Pat

    Discovering Ecosystem Models from Time-Series Data Dileep George, 1 Kazumi Saito, 2 Pat Langley, 1. Ecosystem models are used to interpret and predict the in- teractions of species and their environment. In this paper, we address the task of inducing ecosystem models from background knowledge and time- series data

  5. Digital Business Ecosystem Tools as Interoperability Mikls Herdon1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Digital Business Ecosystem Tools as Interoperability Drivers Miklós Herdon1 , Mária Raffai2 , Ádám of the Digital Business Ecosystem (DBE) has been come life in order to build an Internet-based environment in which businesses will be able to interact with each other more efficiently. In a Digital Ecosystem

  6. South Florida Ecosystem Restoration: Scientific Information Needs in the Southern

    E-Print Network [OSTI]

    South Florida Ecosystem Restoration: Scientific Information Needs in the Southern Coastal Areas information needed for ecosystem restoration in the Southern Coastal Areas of South Florida. In 1996 that time, ecosystem restoration has advanced from planning to implementation; progress in research has

  7. Restoration of ecosystem services and biodiversity: conflicts and

    E-Print Network [OSTI]

    Rey Benayas, José María

    . Despite this uncertainty, new methods of ecosystem service valuation are suggesting that the economicRestoration of ecosystem services and biodiversity: conflicts and opportunities James M. Bullock1 benefits of restoration can outweigh costs. Payment for Ecosystem Service schemes could therefore provide

  8. The Value of New Jersey's Ecosystem Services and Natural Capital

    E-Print Network [OSTI]

    The Value of New Jersey's Ecosystem Services and Natural Capital Robert Costanza Matthew Wilson services are are mainly provided by ecosystems. Examples of ecosystem services ("ecoservices") include of ecoservices in a variety of locations using a variety of valuation methods and applies them to New Jersey

  9. "Green Gold" pasture ecosystem management programme 16 .06.2008

    E-Print Network [OSTI]

    1 "Green Gold" pasture ecosystem management programme 1 16 .06.2008 Pastoral system and herders communities Professor D.Dorligsuren Programme Coordinator "Green Gold" Pasture Ecosystem Management Programme Swiss Agency for Cooperation and Development, Mongolia "Green Gold" pasture ecosystem management

  10. Pacific Northwest Laboratory annual report for 1984 to the DOE Office of Energy Research. Part 2. Ecological sciences

    SciTech Connect (OSTI)

    Novich, C.M. (ed.)

    1985-02-01T23:59:59.000Z

    Research progress is reported in the following areas: (1) the terrestrial ecology of semi-arid sites; (2) marine sciences; (3) radionuclide fate and effects; (4) waste mobilization, fate and effects; and (5) theoretical research on environmental sampling. (ACR)

  11. THE YEAR IN ECOLOGY AND CONSERVATION BIOLOGY, 2009 Mapping and Valuing Ecosystem Services

    E-Print Network [OSTI]

    Weiblen, George D

    society through unaccounted-for ecosystem services. A major challenge in mov- ing to a more ecosystem

  12. CO2 stabilization, climate change and the terrestrial carbon sink

    E-Print Network [OSTI]

    White, Andrew

    CO2 stabilization, climate change and the terrestrial carbon sink A N D R E W W H I T E , * M E L V, Hybrid v4.1, with a subdaily timestep, was driven by increasing CO2 and transient climate output from scenarios were used: (i) IS92a, giving 790 ppm CO2 by 2100, (ii) CO2 stabilization at 750 ppm by 2225

  13. Terrestrial Planet Finder Coronagraph (TPF-C) Flight Baseline Concept

    E-Print Network [OSTI]

    Levine, Marie; Shaklan, S; Kasting, J; Traub, W; Alexander, J; Angel, R; Blaurock, C; Brown, M; Brown, R; Burrows, C; Clampin, M; Cohen, E; Content, D; Dewell, L; Dumont, P; Egerman, R; Ferguson, H; Ford, V; Greene, J; Guyon, O; Hammel, H; Heap, S; Ho, T; Horner, S; Hunyadi, S; Irish, S; Jackson, C; Kasdin, J; Kissil, A; Krim, M; Kuchner, M; Kwack, E; Lillie, C; Lin, D; Liu, A; Marchen, L; Marley, M; Meadows, V; Mosier, G; Mouroulis, P; Noecker, M; Ohl, R; Oppenheimer, B; Pitman, J; Ridgway, S; Sabatke, E; Seager, S; Shao, M; Smith, A; Soummer, R; Stapelfeldt, K; Tenerell, D; Trauger, J; Vanderbei, R

    2009-01-01T23:59:59.000Z

    The Terrestrial Planet Finder Coronagraph (TPF-C) mission presented here is an existence proof for a flagship-class internal coronagraph space mission capable of detecting and characterizing Earth-like planets and planetary systems at visible wavelengths around nearby stars, using an existing launch vehicle. TPF-C will use spectroscopy to measure key properties of exoplanets including the presence of atmospheric water or oxygen, powerful signatures in the search for habitable worlds.

  14. Leptogenesis, neutrinoless double beta decay and terrestrial CP violation

    E-Print Network [OSTI]

    W. Rodejohann

    2001-10-18T23:59:59.000Z

    Leptogenesis in left-right symmetric theories is studied. The usual see-saw mechanism is modified by the presence of a left-handed Higgs triplet. A simple connection between the properties of the light left-handed and heavy right-handed neutrinos is found. Predictions of this scenario for neutrinoless double beta decay and terrestrial CP violation in long-baseline experiments are given. These observables can in principle distinguish different realizations of the model.

  15. Global Emissions of Terpenoid VOCs from Terrestrial Vegetation in the Last Millennium

    SciTech Connect (OSTI)

    Acosta Navarro, J. C.; Smolander, S.; Struthers, H.; Zorita, E.; Ekman, A. M.; Kaplan, J. O.; Guenther, Alex B.; Arneth, A.; Riipinen, I.

    2014-06-16T23:59:59.000Z

    We investigated the millennial variability of global BVOC emissions by using two independent numerical models: The Model of Emissions of Gases and Aerosols from Nature (MEGAN), for isoprene, monoterpene and sesquiterpene and Lund-Potsdam-Jena General Ecosystem Simulator (LPJ8 GUESS), for isoprene and monoterpenes. We found the millennial trends of global isoprene emissions to be mostly affected by land cover and atmospheric carbon dioxide changes, whereas monoterpene and sesquiterpene emission were dominated by temperature change. Isoprene emissions declined substantially in regions with large and rapid land cover change. In addition, isoprene emission sensitivity to drought proved to have signicant short term global effects. By the end of the past millennium MEGAN isoprene emissions were 634 TgC yr-1 (13% and 19% less than during during 1750-1850 and 1000- 15 1200, respectively) and LPJ-GUESS emissions were 323 TgC yr-1 (15% and 20% less than during 1750-1850 and 1000-1200, respectively). Monoterpene emissions were 89 TgC yr-1 (10% and 6% higher than during 1750-1850 and 1000-1200, respectively) in MEGAN, and 24 TgC yr-1 (2% higher and 5% 19 20 less than during 1750-1850 and 1000-1200, respectively) in LPJ-GUESS. MEGAN sesquiterpene emissions were 36 TgC yr-1 (10% and 4% higher than during1750-1850 and 1000-1200, respectively). Although both models capture similar We investigated the millennial variability of global BVOC emissions by using two independent numerical models: The Model of Emissions of Gases and Aerosols from Nature (MEGAN), for isoprene, monoterpene and sesquiterpene and Lund-Potsdam-Jena General Ecosystem Simulator (LPJ8GUESS), for isoprene and monoterpenes. We found the millennial trends ofglobal isoprene emissions to be mostly a*ected by land cover and atmospheric carbon dioxide changes, whereas monoterpene and sesquiterpene emission were dominated by temperature change. Isoprene emissions declined substantially in regions with large and rapid land cover change. In addition, isoprene emission sensitivity to drought proved to have signifcant short term global effects. By the end of the past millennium MEGAN isoprene emissions were 634 TgC yr-1 (13% and 19% less than during during 1750-1850 and 1000- 1200, respectively) and LPJ-GUESS emissions were 323 TgC yr-1 (15% and 16 17 20% less than during 1750-1850 and 1000-1200, respectively). Monoterpene emissions were 89 TgC yr-1 (10% and 6% higher than during 1750-1850 and 18 1000-1200, respectively) in MEGAN, and 24 TgC yr-1 (2% higher and 5% less than during 1750-1850 and 1000-1200, respectively) in LPJ-GUESS. MEGAN sesquiterpene emissions were 36 TgC yr-1 (10% and 4% higher than during1750-1850 and 1000-1200, respectively). Although both models capture similar emission trends, the magnitude of the emissions are different. This highlights the importance of building better constraints on VOC emissions from terrestrial vegetation.emission trends, the magnitude of the emissions are different. This highlights the importance of building better constraints on VOC emissions from terrestrial vegetation.

  16. Running Head: Ecosystem Energy and Conservation1 Ecosystem Energy as a Framework for Prioritizing Conservation Vulnerabilities and3

    E-Print Network [OSTI]

    Hansen, Andrew J.

    1 Running Head: Ecosystem Energy and Conservation1 2 Ecosystem Energy as a Framework for Prioritizing Conservation Vulnerabilities and3 Management Strategies4 5 Andrew James Hansen6 Ecology property, ecosystem energy levels, which,14 while once widely recognized as important, has received little

  17. Influence of massive planet scattering on nascent terrestrial planets

    E-Print Network [OSTI]

    Dimitri Veras; Philip J. Armitage

    2005-01-17T23:59:59.000Z

    In most extrasolar planetary systems, the present orbits of known giant planets admit the existence of stable terrestrial planets. Those same giant planets, however, have typically eccentric orbits that hint at violent early dynamics less benign for low mass planet formation. Under the assumption that massive planet eccentricities are the end point of gravitational scattering in multiple planet systems, we study the evolution of the building blocks of terrestrial planets during the scattering process. We find that typically, evolutionary sequences that result in a moderately eccentric giant planet orbiting at a ~ 2.5 AU eject over 95% of the material initially present within the habitable zone. Crossing orbits largely trigger the ejection, and leave the surviving material with a wide dispersion in semi-major axis, eccentricity and inclination. Based on these results, we predict that radial velocity follow-up of terrestrial planet systems found by Kepler will find that these are anti-correlated with the presence of eccentric giant planets orbiting at a few AU.

  18. On the Survival of Short-Period Terrestrial Planets

    E-Print Network [OSTI]

    Rosemary A. Mardling; D. N. C. Lin

    2004-06-30T23:59:59.000Z

    The currently feasible method of detection of Earth-mass planets is transit photometry, with detection probability decreasing with a planet's distance from the star. The existence or otherwise of short-period terrestrial planets will tell us much about the planet formation process, and such planets are likely to be detected first if they exist. Tidal forces are intense for short-period planets, and result in decay of the orbit on a timescale which depends on properties of the star as long as the orbit is circular. However, if an eccentric companion planet exists, orbital eccentricity ($e_i$) is induced and the decay timescale depends on properties of the short-period planet, reducing by a factor of order $10^5 e_i^2$ if it is terrestrial. Here we examine the influence companion planets have on the tidal and dynamical evolution of short-period planets with terrestrial structure, and show that the relativistic potential of the star is fundamental to their survival.

  19. Trends in nitrogen deposition and leaching in acid-sensitive streams in Europe Hydrology and Earth System Sciences, 5(3), 299310 (2001) EGS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    for geographic pattern and long-term trends in response of surface waters to changes in N deposition set. Quantification of processes governing nitrogen retention and loss in semi-natural terrestrial ecosystems (NO3 ) in excess of total combined plant and microbial nutritional demand". By this definition N

  20. Montana State University 1 Ph.D. Degree in Ecology

    E-Print Network [OSTI]

    Lawrence, Rick L.

    Montana State University 1 Ph.D. Degree in Ecology and Environmental Sciences This cross of ecology and environmental sciences, within the unparalleled natural laboratory that is the Greater Yellowstone Ecosystem. Particular program strengths include terrestrial and aquatic ecology, environmental

  1. SCIENCE CHINA Technological Sciences

    E-Print Network [OSTI]

    Wang, Zhong L.

    SCIENCE CHINA Technological Sciences © Science China Press and Springer-Verlag Berlin Heidelberg and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China; 2 Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000, China; 3 School of Material Science and Engineering, Georgia Institute

  2. Carbon Cycling and Biosequestration Integrating Biology and Climate Through Systems Science Report from the March 2008 Workshop

    SciTech Connect (OSTI)

    Graber, J.; Amthor, J.; Dahlman, R.; Drell, D.; Weatherwax, S.

    2008-12-01T23:59:59.000Z

    One of the most daunting challenges facing science in the 21st Century is to predict how Earth's ecosystems will respond to global climate change. The global carbon cycle plays a central role in regulating atmospheric carbon dioxide (CO{sub 2}) levels and thus Earth's climate, but our basic understanding of the myriad of tightly interlinked biological processes that drive the global carbon cycle remains limited at best. Whether terrestrial and ocean ecosystems will capture, store, or release carbon is highly dependent on how changing climate conditions affect processes performed by the organisms that form Earth's biosphere. Advancing our knowledge of biological components of the global carbon cycle is thus crucial to predicting potential climate change impacts, assessing the viability of climate change adaptation and mitigation strategies, and informing relevant policy decisions. Global carbon cycling is dominated by the paired biological processes of photosynthesis and respiration. Photosynthetic plants and microbes of Earth's land-masses and oceans use solar energy to transform atmospheric CO{sub 2} into organic carbon. The majority of this organic carbon is rapidly consumed by plants or microbial decomposers for respiration and returned to the atmosphere as CO{sub 2}. Coupling between the two processes results in a near equilibrium between photosynthesis and respiration at the global scale, but some fraction of organic carbon also remains in stabilized forms such as biomass, soil, and deep ocean sediments. This process, known as carbon biosequestration, temporarily removes carbon from active cycling and has thus far absorbed a substantial fraction of anthropogenic carbon emissions.

  3. 104 Department of Landscape Design and Ecosystem Management (LDEM) Graduate Catalogue 201415

    E-Print Network [OSTI]

    of agrochemicals in the environment. Effect on terrestrial and aquatic systems. Contamination, monitoring residues

  4. Undergraduate Earth Sciences

    E-Print Network [OSTI]

    Bristol, University of

    to palaeontological, sedimentological and stratigraphic observations of terrestrial and marine environments

  5. Heather A. Broadbent College of Marine Science, University of South Florida, 140 7th

    E-Print Network [OSTI]

    Meyers, Steven D.

    students in the Executive Internship program for Marine Science by teaching them design, development Aboard the R/V Weatherbird II for the Center for Integrated Modeling and Analysis of Gulf Ecosystems (C of Mexico ecosystem, focusing on the lower end of the water column food web. Assessing benthic, microbial

  6. Estimation of Net Ecosystem Carbon Exchange for the Conterminous UnitedStates by Combining MODIS and AmeriFlux Data

    SciTech Connect (OSTI)

    Xiao, Jingfeng; Zhuang, Qianlai; Baldocchi, Dennis D.; Law, Beverly E.; Richardson, Andrew D.; Chen, Jiquan; Oren, Ram; Starr, Gregory; Noormets, Asko; Ma, Siyan; Verma, Shashi B.; Wharton, Sonia; Wofsy, Steven C.; Bolstad, Paul V.; Burns, Sean P.; Cook, David R.; Curtis, Peter S.; Drake, Bert G.; Falk, Matthias; Fischer, Marc L.; Foster, David R.; Gu, Lianhong; Hadley, Julian L.; Hollinger, David Y.; Katul, Gabriel G.; Litvak, Marcy; Martin, Timothy A.; Matamala, Roser; McNulty, Steve; Meyers, Tilden P.; Monson, Russell K.; Munger, J. William; Oechel, Walter C.; U, Kyaw Tha Paw; Schmid, Hans Peter; Scott, Russell L.; Sun, Ge; Suyker, Andrew E.; Torn, Margaret S.

    2009-03-06T23:59:59.000Z

    Eddy covariance flux towers provide continuous measurements of net ecosystem carbon exchange (NEE) for a wide range of climate and biome types. However, these measurements only represent the carbon fluxes at the scale of the tower footprint. To quantify the net exchange of carbon dioxide between the terrestrial biosphere and the atmosphere for regions or continents, flux tower measurements need to be extrapolated to these large areas. Here we used remotely-sensed data from the Moderate Resolution Imaging Spectrometer (MODIS) instrument on board NASA's Terra satellite to scale up AmeriFlux NEE measurements to the continental scale. We first combined MODIS and AmeriFlux data for representative U.S. ecosystems to develop a predictive NEE model using a regression tree approach. The predictive model was trained and validated using NEE data over the periods 2000-2004 and 2005-2006, respectively. We found that the model predicted NEE reasonably well at the site level. We then applied the model to the continental scale and estimated NEE for each 1 km x 1 km cell across the conterminous U.S. for each 8-day period in 2005 using spatially-explicit MODIS data. The model generally captured the expected spatial and seasonal patterns of NEE. Our study demonstrated that our empirical approach is effective for scaling up eddy flux NEE measurements to the continental scale and producing wall-to-wall NEE estimates across multiple biomes. Our estimates may provide an independent dataset from simulations with biogeochemical models and inverse modeling approaches for examining the spatiotemporal patterns of NEE and constraining terrestrial carbon budgets for large areas.

  7. Estimation of net ecosystem carbon exchange for the conterminous United States by combining MODIS and AmeriFlux data

    SciTech Connect (OSTI)

    Xiao, Jingfeng; Zhuang, Qianlai; Baldocchi, Dennis D.; Bolstad, Paul V.; Burns, Sean P.; Chen, Jiquan; Cook, David R.; Curtis, Peter S.; Drake, Bert G.; Foster, David R.; Gu, Lianhong; Hadley, Julian L.; Hollinger, David Y.; Katul, Gabriel G.; Law, Beverly E.; Litvak, Marcy; Ma, Siyan; Martin, Timothy A.; Matamala, Roser; McNulty, Steve; Meyers, Tilden P.; Monson, Russell K.; Munger, J. William; Noormets, Asko; Oechel, Walter C.; Oren, Ram; Richardson, Andrew D.; Schmid, Hans Peter; Scott, Russell L.; Starr, Gregory; Sun, Ge; Suyker, Andrew E.; Torn, Margaret S.; Paw, Kyaw; Verma, Shashi B.; Wharton, Sonia; Wofsy, Steven C.

    2008-10-01T23:59:59.000Z

    Eddy covariance flux towers provide continuous measurements of net ecosystem carbon exchange (NEE) for a wide range of climate and biome types. However, these measurements only represent the carbon fluxes at the scale of the tower footprint. To quantify the net exchange of carbon dioxide between the terrestrial biosphere and the atmosphere for regions or continents, flux tower measurements need to be extrapolated to these large areas. Here we used remotely sensed data from the Moderate Resolution Imaging Spectrometer (MODIS) instrument on board the National Aeronautics and Space Administration's (NASA) Terra satellite to scale up AmeriFlux NEE measurements to the continental scale. We first combined MODIS and AmeriFlux data for representative U.S. ecosystems to develop a predictive NEE model using a modified regression tree approach. The predictive model was trained and validated using eddy flux NEE data over the periods 2000-2004 and 2005-2006, respectively. We found that the model predicted NEE well (r = 0.73, p < 0.001). We then applied the model to the continental scale and estimated NEE for each 1 km x 1 km cell across the conterminous U.S. for each 8-day interval in 2005 using spatially explicit MODIS data. The model generally captured the expected spatial and seasonal patterns of NEE as determined from measurements and the literature. Our study demonstrated that our empirical approach is effective for scaling up eddy flux NEE measurements to the continental scale and producing wall-to-wall NEE estimates across multiple biomes. Our estimates may provide an independent dataset from simulations with biogeochemical models and inverse modeling approaches for examining the spatiotemporal patterns of NEE and constraining terrestrial carbon budgets over large areas.

  8. BIOLOGICAL SCIENCES Wendy O'Connor & Erin Sayer | Academic Advisers

    E-Print Network [OSTI]

    Logan, David

    of Parasitologists. The Center for Biotechnology promotes research on all aspects of molecular life sciences research, leading to improvements in agriculture, health care and the environment. Other labs and facilities include: Ecosystems Analysis Laboratory, Nebraska Bioenergy Facilities, and the Center for Plant Science Innovation

  9. Environmental Science and Resource Management Undergraduate Student Learning Objectives

    E-Print Network [OSTI]

    Anderson, Richard

    Environmental Science and Resource Management Undergraduate Student Learning Objectives Students completing the B.S. in Environmental Science and Resource Management will have the following: KNOWLEDGE SETS and environmental ethics. · Understand application of ecosystem and social concepts along the urban to wildland

  10. Proceedings of the Columbia River Estuary Conference on Ecosystem Restoration.

    SciTech Connect (OSTI)

    U.S. Bonneville Power Administration

    2008-08-01T23:59:59.000Z

    The 2008 Columbia River Estuary Conference was held at the Liberty Theater in Astoria, Oregon, on April 19-20. The conference theme was ecosystem restoration. The purpose of the conference was to exchange data and information among researchers, policy-makers, and the public, i.e., interrelate science with management. Conference organizers invited presentations synthesizing material on Restoration Planning and Implementation (Session 1), Research to Reduce Restoration Uncertainties (Session 2), Wetlands and Flood Management (Session 3), Action Effectiveness Monitoring (Session 4), and Management Perspectives (Session 5). A series of three plenary talks opened the conference. Facilitated speaker and audience discussion periods were held at the end of each session. Contributed posters conveyed additional data and information. These proceedings include abstracts and notes documenting questions from the audience and clarifying answers from the presenter for each talk. The proceedings also document key points from the discussion periods at the end of each session. The conference program is outlined in the agenda section. Speaker biographies are presented in Appendix A. Poster titles and authors are listed in Appendix B. A list of conference attendees is contained in Appendix C.

  11. Ecosystem Japan Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazel Crest, Illinois: EnergyEastport,de Nantes JumpEcosystem Japan Co Ltd

  12. Modeling Sea Ice-Ocean-Ecosystem Responses to Climate Changes in the Bering-Chukchi-Beaufort Seas with Data Assimilation of

    E-Print Network [OSTI]

    of Marine Science and Technology, Haoguo Hu - CILER, University of Michigan Overview This project will useModeling Sea Ice-Ocean-Ecosystem Responses to Climate Changes in the Bering-Chukchi-Beaufort Seas-Investigators: Leo Oey - Princeton University, Tel Ezer - Old Dominion University, K. Mizobata - Tokyo University

  13. Terrestrial Planet Formation in Disks with Varying Surface Density Profiles

    E-Print Network [OSTI]

    Sean N. Raymond; Thomas Quinn; Jonathan I. Lunine

    2005-06-30T23:59:59.000Z

    The ``minimum-mass solar nebula'' (MMSN) model estimates the surface density distribution of the protoplanetary disk by assuming the planets to have formed in situ. However, significant radial migration of the giant planets likely occurred in the Solar system, implying a distortion in the values derived by the MMSN method. The true density profiles of protoplanetary disks is therefore uncertain. Here we present results of simulations of late-stage terrestrial accretion, each starting from a disk of planetary embryos. We assume a power-law surface density profile that varies with heliocentric distance r as r^-alpha, and vary alpha between 1/2 and 5/2 (alpha = 3/2 for the MMSN model). We find that for steeper profiles (higher values of alpha), the terrestrial planets (i) are more numerous, (ii) form more quickly, (iii) form closer to the star, (iv) are more massive, (v) have higher iron contents, and (vi) have lower water contents. However, the possibility of forming potentially habitable planets does not appear to vary strongly with alpha.

  14. Terrestrial habitat mapping of the Oak Ridge Reservation: 1996 Summary

    SciTech Connect (OSTI)

    Washington-Allen, R.A.; Ashwood, T.L.

    1996-09-01T23:59:59.000Z

    The US DOE is in the process of remediating historical contamination on the Oak Ridge Reservation (ORR). Two key components are ecological risk assessment and monitoring. In 1994 a strategy was developed and a specific program was initiated to implement the strategy for the terrestrial biota of the entire ORR. This document details results of the first task: development of a habitat map and habitat models for key species of interest. During the last 50 years ORR has been a relatively protected island of plant and animal habitats in a region of rapidly expanding urbanization. A preliminary biodiversity assessment of the ORR by the Nature Conservancy in 1995 noted 272 occurrences of significant plant and animal species and communities. Field surveys of threatened and endangered species show that the ORR contains 20 rare plant species, 4 of which are on the state list of endangered species. The rest are either on the state list of threatened species or listed as being of special concern. The ORR provides habitat for some 60 reptilian and amphibian species; more than 120 species of terrestrial birds; 32 species of waterfowl, wading birds, and shorebirds; and about 40 mammalian species. The ORR is both a refuge for rare species and a reservoir of recruitment for surrounding environments and wildlife management areas. Cedar barrens, river bluffs, and wetlands have been identified as the habitat for most rare vascular plant species on the ORR.

  15. alpine lake ecosystems: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Lake Ecosystem Modelling: an Integrated Approach INTRODUCTION Anthropogenic eutrophication of water bodies and its consequences are of concern especially to Assess...

  16. anthropogenic ecosystem perturbations: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Theses and Dissertations Summary: ??Anthropogenic impacts such as fishing and eutrophication are significant challenges to the sustainable management of aquatic ecosystems....

  17. arctic marine ecosystem: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    the Bamboung marine protected area social-ecosystem. Key words Social-ecological system, climate Paris-Sud XI, Universit de 6 Perfluoroalkyl Contaminants in an Arctic Marine...

  18. Environmental Genomics Reveals a Single-Species Ecosystem Deep Earth

    E-Print Network [OSTI]

    Arkin, Adam P.

    2014-01-01T23:59:59.000Z

    Environmental Genomics Reveals a Single-Species EcosystemTechnology Program, DOE Joint Genomics Institute, Berkeley,and Environmental Research, Genomics:GTL program through

  19. Earth Science Division Overview Unidata Policy Committee

    E-Print Network [OSTI]

    & Ecosystems Office Goddard Space Flight Center 27 October 2011 #12;2 Atmospheric Composition Carbon Cycle augment space-based observations to validate science results and provide complimentary measurements Research Balloons Ground Stations Space-based: Sensors & Data Relay Ground Networks Uninhabited Aerial

  20. College of Agriculture, Food and Environment NRE Natural Resources and Environmental Science

    E-Print Network [OSTI]

    MacAdam, Keith

    College of Agriculture, Food and Environment NRE Natural Resources and Environmental Science KEY Bulletin 1 NRE 301 NATURAL RESOURCES AND ENVIRONMENTAL SCIENCE. (3) An introductory course in management of natural resources as supported by environmental science at an ecosystem level. Students

  1. Intelligent spatial ecosystem modeling using parallel processors

    SciTech Connect (OSTI)

    Maxwell, T.; Costanza, R. (Maryland International Inst. for Ecological Economics, Solomons (United States))

    1993-05-01T23:59:59.000Z

    Spatial modeling of ecosystems is essential if one's modeling goals include developing a relatively realistic description of past behavior and predictions of the impacts of alternative management policies on future ecosystem behavior. Development of these models has been limited in the past by the large amount of input data required and the difficulty of even large mainframe serial computers in dealing with large spatial arrays. These two limitations have begun to erode with the increasing availability of remote sensing data and GIS systems to manipulate it, and the development of parallel computer systems which allow computation of large, complex, spatial arrays. Although many forms of dynamic spatial modeling are highly amenable to parallel processing, the primary focus in this project is on process-based landscape models. These models simulate spatial structure by first compartmentalizing the landscape into some geometric design and then describing flows within compartments and spatial processes between compartments according to location-specific algorithms. The authors are currently building and running parallel spatial models at the regional scale for the Patuxent River region in Maryland, the Everglades in Florida, and Barataria Basin in Louisiana. The authors are also planning a project to construct a series of spatially explicit linked ecological and economic simulation models aimed at assessing the long-term potential impacts of global climate change.

  2. Integrating Empirical-Modeling Approaches to Improve Understanding of Terrestrial Ecology Processes

    SciTech Connect (OSTI)

    McCarthy, Heather [University of Oklahoma; Luo, Yiqi [University of Oklahoma; Wullschleger, Stan D [ORNL

    2012-01-01T23:59:59.000Z

    Recent decades have seen tremendous increases in the quantity of empirical ecological data collected by individual investigators, as well as through research networks such as FLUXNET (Baldocchi et al., 2001). At the same time, advances in computer technology have facilitated the development and implementation of large and complex land surface and ecological process models. Separately, each of these information streams provides useful, but imperfect information about ecosystems. To develop the best scientific understanding of ecological processes, and most accurately predict how ecosystems may cope with global change, integration of empirical and modeling approaches is necessary. However, true integration - in which models inform empirical research, which in turn informs models (Fig. 1) - is not yet common in ecological research (Luo et al., 2011). The goal of this workshop, sponsored by the Department of Energy, Office of Science, Biological and Environmental Research (BER) program, was to bring together members of the empirical and modeling communities to exchange ideas and discuss scientific practices for increasing empirical - model integration, and to explore infrastructure and/or virtual network needs for institutionalizing empirical - model integration (Yiqi Luo, University of Oklahoma, Norman, OK, USA). The workshop included presentations and small group discussions that covered topics ranging from model-assisted experimental design to data driven modeling (e.g. benchmarking and data assimilation) to infrastructure needs for empirical - model integration. Ultimately, three central questions emerged. How can models be used to inform experiments and observations? How can experimental and observational results be used to inform models? What are effective strategies to promote empirical - model integration?

  3. Toward a consistency cross-check of eddy covariance flux–based and biometric estimates of ecosystem carbon balance

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    based and biometric estimates of ecosystem carbon balance S.Uncertainty of annual net ecosystem productivity estimatedand par- titioning of ecosystem respiration in a southern

  4. Using Conceptual Models in Ecosystem Restoration Decision Making: An Example from the Sacramento-San Joaquin River Delta, California

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    CA): Delta Regional Ecosystem Restoration ImplementationCA): Delta Regional Ecosystem Restoration ImplementationBay–Delta Program. 2000. Ecosystem Restoration Program:

  5. Estimation of Net Ecosystem Carbon Exchange for the Conterminous United States by Combining MODIS and AmeriFlux Data

    E-Print Network [OSTI]

    Gu, Lianhong

    2009-01-01T23:59:59.000Z

    defensible annual sums of net ecosystem exchange. Agri. For.contrasting Florida ecosystems. Ecol. App. 9, 936- Clark,S. , 2002. Seasonality of ecosystem respiration and gross

  6. Near-surface remote sensing of canopy architecture and land-atmosphere interactions in an oak savanna ecosystem

    E-Print Network [OSTI]

    Ryu, Youngryel

    2010-01-01T23:59:59.000Z

    2007). Reduction of ecosystem productivity and respirationR. (2005). On the separation of net ecosystem exchange intoassimilation and ecosystem respiration: review and improved

  7. The significance of the erosion-induced terrestrial carbon sink

    E-Print Network [OSTI]

    Berhe, A.A.; Harte, J.; Harden, J.W.; Torn, M.S.

    2006-01-01T23:59:59.000Z

    potential of soil carbon sequestration to mitigate theof soil movement on carbon sequestration in agriculturalEnhancement of carbon sequestration in US soils. BioScience.

  8. Webinar-Terrestrial Solar Spectral Modeling for Renewable Energy...

    Open Energy Info (EERE)

    physics. SMARTS is a medium complexity model that requires significant experience and knowledge of basic physics and atmospheric science. It is therefore used primarily by...

  9. additional terrestrial threat: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Websites Summary: by way of the Notice of Intent 2 to prepare an Environmental Impact Statement (EIS) for the militaryJournal of Environmental Science and Engineering, 5...

  10. CollegeofScience Biological Sciences

    E-Print Network [OSTI]

    Hickman, Mark

    ,populations,and even ecosystems. Our courses will help prepare you for a career in biology,be it in biodiversity

  11. Insignificant solar-terrestrial triggering of earthquakes Jeffrey J. Love1

    E-Print Network [OSTI]

    Thomas, Jeremy N.

    that solar-terrestrial interaction, as measured by sunspots, solar wind velocity, and geomagnetic activity by the corresponding rank of annual, monthly, and daily averages of the solar-terrestrial variables. We measure, 1963; Gribbin, 1971]. Alternatively, magnetic storms might induce eddy electric currents in rocks along

  12. Sulfur Cycling in the Terrestrial Subsurface: Commensal Interactions, Spatial Scales, and Microbial Heterogeneity

    E-Print Network [OSTI]

    Grossman, Ethan L.

    Sulfur Cycling in the Terrestrial Subsurface: Commensal Interactions, Spatial Scales, and Microbial microbial processes in the terrestrial subsurface. Previous geochemical studies suggested that sulfide environment in shallow sediments (5 m), and produces acidic waters (pH 3.8) that are rich in sulfate (28 m

  13. Compton scattering effects on the duration of terrestrial gamma-ray flashes

    E-Print Network [OSTI]

    Pasko, Victor

    ; published 18 January 2012. [1] Terrestrial gamma-ray flashes (TGFs) are gamma-ray bursts detected from space) recently discovered by the gamma-ray burst monitor (GBM) aboard the Fermi Gamma-Ray Space Telescope. Introduction [2] Terrestrial gamma-ray flashes (TGFs) are bursts of high-energy photons originating from

  14. Heat partitioning in terrestrial planets during core formation by negative diapirism H. Samuel a,

    E-Print Network [OSTI]

    Evonuk, Martha

    in terrestrial planets. We model the dynamic evolution of an iron diapir, sinking through a solid silicate proto experiments. This model can be applied to determine the heat distribution within terrestrial planets-like planets by conversion of potential into thermal energy via viscous heating (Rubie et al., 2007; Solomon

  15. To What Extent Does Terrestrial Life ``Follow The Water''? Eriita G. Jones and Charles H. Lineweaver

    E-Print Network [OSTI]

    Lineweaver, Charles H.

    uninhabited, we present empirical pressure-temperature (P-T ) phase diagrams of water, Earth, and terrestrial. This potentially uninhabited terrestrial liquid water includes (i) hot and deep regions of Earth where some combination of high temperature (T > 1228C) and restrictions on pore space, nu- trients, and energy

  16. Quantifying global terrestrial methanol emissions using1 observations from the TES satellite sensor2

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    1 Quantifying global terrestrial methanol emissions using1 observations from the TES Figure S1. December-January-Febuary (DJF, top) and June-July-August (JJA, bottom) biogenic3 methanol 1 Figure S4. Regions employed for quantifying terrestrial methanol fluxes (red) and for2

  17. App D_Terrestrial Tech App.doc 1 Protection, Restoration, and Management of

    E-Print Network [OSTI]

    , Restoration, Management 83 2.4.6 Compatibility of Wetland Management and Stream Management 84 2 2.5.5 Protection, Restoration, Management 103 2.5.6 Compatibility of Pond Management and StreamApp D_Terrestrial Tech App.doc 1 Protection, Restoration, and Management of Terrestrial Habitats

  18. An efficient numerical terrestrial scheme (ENTS) for fast earth system modelling

    E-Print Network [OSTI]

    Williamson, Mark

    An efficient numerical terrestrial scheme (ENTS) for fast earth system modelling Mark Williamson Working Paper 83 #12;An efficient numerical terrestrial scheme (ENTS) for fast earth system modelling Mark for long time period simulations and large ensemble studies in Earth system models of intermediate

  19. Source altitudes of terrestrial gamma-ray flashes produced by lightning leaders

    E-Print Network [OSTI]

    Pasko, Victor

    ; published 18 April 2012. [1] Terrestrial gamma-ray flashes (TGFs) are energetic photon bursts observed fromSource altitudes of terrestrial gamma-ray flashes produced by lightning leaders Wei Xu,1 Sebastien. Pasko (2012), Source altitudes of terres- trial gamma-ray flashes produced by lightning leaders, Geophys

  20. The future of terrestrial mammals in the Mediterranean basin under climate change

    E-Print Network [OSTI]

    Zimmermann, Niklaus E.

    Research The future of terrestrial mammals in the Mediterranean basin under climate change Luigi climate change model outputs for two climate scenarios. Overall, a substantial number of Mediterranean in climate. For 181 terrestrial mammals (68% of all Mediterranean mammals), we used an ensemble forecasting

  1. Elements of comparison between Martian and terrestrial mesoscale meteorological phenomena: Katabatic winds and boundary layer convection

    E-Print Network [OSTI]

    Spiga, Aymeric

    Elements of comparison between Martian and terrestrial mesoscale meteorological phenomena Keywords: Mesoscale meteorology Katabatic winds Boundary layer convection Comparative planetology a b s t r a c t Terrestrial and Martian atmospheres are both characterised by a large variety of mesoscale

  2. Environmental Sciences Division annual progress report for period ending September 30, 1982. Environmental Sciences Division Publication No. 2090. [Lead abstract

    SciTech Connect (OSTI)

    Not Available

    1983-04-01T23:59:59.000Z

    Separate abstracts were prepared for 12 of the 14 sections of the Environmental Sciences Division annual progress report. The other 2 sections deal with educational activities. The programs discussed deal with advanced fuel energy, toxic substances, environmental impacts of various energy technologies, biomass, low-level radioactive waste management, the global carbon cycle, and aquatic and terrestrial ecology. (KRM)

  3. Software Platforms for Smart Building Ecosystems: Understanding the

    E-Print Network [OSTI]

    Software Platforms for Smart Building Ecosystems: Understanding the Key Architectural-ready software platform for the smart building domain. We analyzed the type of contributors that may exist in a smart building ecosystem, the quality attributes that those roles are concerned with, and the key

  4. EXPLORING ABORIGINAL FORESTRY AND ECOSYSTEM-BASED MANAGEMENT

    E-Print Network [OSTI]

    EXPLORING ABORIGINAL FORESTRY AND ECOSYSTEM-BASED MANAGEMENT: A CASE STUDY OF COWICHAN TRIBES of Resource Management Title of Research Project: Exploring Aboriginal Forestry and Ecosystem-based Management aboriginal forestry will be required. First Nations share a common desire for control over their forest

  5. USING COMMERCIAL FORESTRY FOR ECOSYSTEM RESTORATION IN SENSITIVE BADGER HABITAT

    E-Print Network [OSTI]

    USING COMMERCIAL FORESTRY FOR ECOSYSTEM RESTORATION IN SENSITIVE BADGER HABITAT by Melissa Hogg BSc of Thesis: Using commercial forestry for ecosystem restoration in sensitive badger habitat Project Number prescribed fire. Commercial forestry can subsidize restoration work, but machinery may damage important

  6. ANCHIALINE ECOSYSTEMS Microbial hotspots in anchialine blue holes

    E-Print Network [OSTI]

    Iliffe, Thomas M.

    ANCHIALINE ECOSYSTEMS Microbial hotspots in anchialine blue holes: initial discoveries from+Business Media B.V. 2011 Abstract Inland blue holes of the Bahamas are anchialine ecosystems with distinct fresh and geomicrobiology exploration of blue holes are providing a first glimpse of the geochemistry and microbial life

  7. Biomass and productivity of trematode parasites in pond ecosystems

    E-Print Network [OSTI]

    Johnson, Pieter

    Biomass and productivity of trematode parasites in pond ecosystems Daniel L. Preston*, Sarah A often measure the biomass and productivity of organisms to understand the importance of populations and dissections of over 1600 aquatic invertebrate and amphib- ian hosts, we calculated the ecosystem-level biomass

  8. Global ecosystem services With their ability to capture and store

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Locatelli Carbon sequestration is recognised as a global ecosystem service (see box on next page such as the global climate (through carbon sequestration), the quantity and quality of water and the force of windsS Global ecosystem services With their ability to capture and store carbon, forests contribute

  9. Air Pollution Impacts on Ecosystems and Biological Diversity

    E-Print Network [OSTI]

    Air Pollution Impacts on Ecosystems and Biological Diversity in the Eastern United States Threats CITATION Lovett, G.M., and T.H. Tear. 2008. Threats from Above: Air Pollution Impacts on Ecosystems and nitrogen pollution. © Eric Middelkoop/BigStockPhoto.com Botom: A newly hatched common loon chick is watched

  10. DECISION-MAKING AND ECOSYSTEM-BASED MANAGEMENT

    E-Print Network [OSTI]

    Lawrence, Rick L.

    options is reviewed and applied to ecosystem-based management. The model recommends a public decision process unless developing new alternatives is not possible, in which case segmented public consultation question involves the kind of public participation strategy to use. For ecosystem-based management to reach

  11. Global mapping of ecosystem services and conservation priorities

    E-Print Network [OSTI]

    Vermont, University of

    and ecosystem services. biodiversity carbon hotspots Global 200 conservation planning Efforts to conserve wild: the goods and services from ecological systems that benefit people (e.g., water purification, carbon sequestration, and crop pollination). These ``ecosystem services'' are currently the focus of intensive re

  12. Edinburgh Research Explorer Understanding the relationships between ecosystem services

    E-Print Network [OSTI]

    Millar, Andrew J.

    Edinburgh Research Explorer Understanding the relationships between ecosystem services and poverty and poverty alleviation: A conceptual framework' Ecosystem Services, vol 7, pp. 34­45., 10.1016/j.ecoser.2013 services and poverty alleviation: A conceptual framework$ Janet A. Fisher a,n , Genevieve Patenaude

  13. Climate Change in Mountain Ecosystems Areas of Current Research

    E-Print Network [OSTI]

    Climate Change in Mountain Ecosystems Areas of Current Research · Glacier Research · Snow Initiative Glacier Research A Focus on Mountain Ecosystems Climate change is widely acknowledged to be having in the western U.S. and the Northern Rockies in particular are highly sensitive to climate change. In fact

  14. ENHANCEMENT OF TERRESTRIAL CARBON SINKS THROUGH RECLAMATION OF ABANDONED MINE LANDS IN THE APPALACHIAN REGION

    SciTech Connect (OSTI)

    Gary D. Kronrad

    2002-12-01T23:59:59.000Z

    The U.S.D.I. Office of Surface Mining (OSM) estimates that there are approximately 1 million acres of abandoned mine land (AML) in the Appalachian region. AML lands are classified as areas that were inadequately reclaimed or were left unreclaimed prior to the passage of the 1977 Surface Mining Control and Reclamation Act, and where no federal or state laws require any further reclamation responsibility to any company or individual. Reclamation and afforestation of these sites have the potential to provide landowners with cyclical timber revenues, generate environmental benefits to surrounding communities, and sequester carbon in the terrestrial ecosystem. Through a memorandum of understanding, the OSM and the U.S. Department of Energy (DOE) have decided to investigate reclaiming and afforesting these lands for the purpose of mitigating the negative effects of anthropogenic carbon dioxide in the atmosphere. This study determined the carbon sequestration potential of northern red oak (Quercus rubra L.), one of the major reclamation as well as commercial species, planted on West Virginia AML sites. Analyses were conducted to (1) calculate the total number of tons that can be stored, (2) determine the cost per ton to store carbon, and (3) calculate the profitability of managing these forests for timber production alone and for timber production and carbon storage together. The Forest Management Optimizer (FORMOP) was used to simulate growth data on diameter, height, and volume for northern red oak. Variables used in this study included site indices ranging from 40 to 80 (base age 50), thinning frequencies of 0, 1, and 2, thinning percentages of 20, 25, 30, 35, and 40, and a maximum rotation length of 100 years. Real alternative rates of return (ARR) ranging from 0.5% to 12.5% were chosen for the economic analyses. A total of 769,248 thinning and harvesting combinations, net present worths, and soil expectation values were calculated in this study. Results indicate that the cost per ton to sequester carbon ranges from $6.54 on site index 80 land at a 12.5% ARR to $36.68 on site index 40 land at an ARR of 0.5%. Results also indicate that the amount of carbon stored during one rotation ranges between 38 tons per acre on site index 40 land to 58 tons per acre on site index 80 land. The profitability of afforestation on these AML sites in West Virginia increases as the market price for carbon increases from $0 to $100 per ton.

  15. Fermi GBM Observations of Terrestrial Gamma-ray Flashes

    SciTech Connect (OSTI)

    Briggs, Michael S. [CSPAR, NSSTC, 320 Sparkman Drive, Huntsville, AL 35805 (United States)

    2011-09-21T23:59:59.000Z

    Terrestrial Gamma-ray Flashes are short pulses of energetic radiation associated with thunderstorms and lightning. While the Gamma-ray Burst Monitor (GBM) on Fermi was designed to observe gamma-ray bursts, its large BGO detectors are excellent for observing TGFs. Using GBM, TGF pulses are seen to either be symmetrical or have faster rise time than fall times. Some TGFs are resolved into double, partially overlapping pulses. Using ground-based radio observations of lightning from the World Wide Lightning Location Network (WWLLN), TGFs and their associated lightning are found to be simultaneous to {approx_equal}40 {mu} s. The lightning locations are typically within 300 km of the sub-spacecraft point.

  16. On the dynamics and thermodynamics of terrestrial planets

    E-Print Network [OSTI]

    Patton, Regan L

    2013-01-01T23:59:59.000Z

    A model for terrestrial planets, inclusive of viscous fluid behavior and featuring finite normal stress differences, is developed. This work offers new insights for the interpretation of planetary survey data. Evolution equations for poloidal and toroidal motions include gradients of density, viscosity, and two normal stress moduli. The poloidal field exhibits gradients in the cubic dilation, which couple non-isotropic pressures to the combined deformation field. In contrast, the toroidal field exhibits vorticity gradients with magnitudes proportional to the natural time. This holds even in the absence of material gradients. Consequently, viscosity gradients are not required to drive toroidal motions. The toroidal field is governed by an inhomogeneous diharmonic equation, exhibiting dynamic shear localization. The strain-energy density for this model, as a function of temperature, is found via thermodynamics. Assuming heat transfer with characteristic diffusivity, a radial model parameterized by thermomechani...

  17. System, method, and apparatus for remote measurement of terrestrial biomass

    DOE Patents [OSTI]

    Johnson, Patrick W (Jefferson, MD)

    2011-04-12T23:59:59.000Z

    A system, method, and/or apparatus for remote measurement of terrestrial biomass contained in vegetative elements, such as large tree boles or trunks present in an area of interest, are provided. The method includes providing an airborne VHF radar system in combination with a LiDAR system, overflying the area of interest while directing energy toward the area of interest, using the VHF radar system to collect backscatter data from the trees as a function of incidence angle and frequency, and determining a magnitude of the biomass from the backscatter data and data from the laser radar system for each radar resolution cell. A biomass map is generated showing the magnitude of the biomass of the vegetative elements as a function of location on the map by using each resolution cell as a unique location thereon. In certain preferred embodiments, a single frequency is used with a linear array antenna.

  18. Principal Paper Sessions Cultivating Ecosystem Services from Agriculture (Scott M. Swinton, Michigan

    E-Print Network [OSTI]

    Landis, Doug

    Principal Paper Sessions Cultivating Ecosystem Services from Agriculture (Scott M. Swinton, Michigan State University, Organizer) ECOSYSTEM SERVICES FROM AGRICULTURE: LOOKING BEYOND THE USUAL. The lens is especially revealing when applied to agriculture, the most widespread managed ecosystem

  19. Ecosystem Valuation and Management (EVM) Semester 2, 2014 Tuesday 0900-1300, ECCI

    E-Print Network [OSTI]

    1 Ecosystem Valuation and Management (EVM) Semester 2, 2014 Tuesday of ecosystem services, its history and rise to prominence. We then explore the ways in which ecosystem services can be valued, measured and monetized by society, across

  20. Fog Water and Ecosystem Function: Heterogeneity in a California Redwood Forest

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    inputs of nitrogen to forest ecosystems in south- ern Chile:forms, ?uxes, and sources. Ecosystems 3: 590–5.Ecosystems (2009) 12: 417–433 DOI: 10.1007/s10021-009-9232-x

  1. PLANKTON PATCHINESS AND ECOSYSTEM STABILITY A Dissertation Submitted to the Graduate Division of

    E-Print Network [OSTI]

    Luther, Douglas S.

    PLANKTON PATCHINESS AND ECOSYSTEM STABILITY A Dissertation Submitted to the Graduate Division rate functions of planktonic ecosystems has been hypothesized to add stability or persistence planktonic ecosystem, one indirect and two direct. 1) The indirect measure, copepod stage frequency

  2. Ecosystem carbon dioxide fluxes after disturbance in forests of North America

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    10.1029/2010JG001390, 2010 Ecosystem carbon dioxide fluxesdioxide fluxes of black spruce ecosystems in eastern Northof a stand?replacing fire on ecosystem CO 2 exchange of a

  3. Ecosystem Dynamics and Function Semester 1, 2013/14 Thursdays 0900-1300, ECCI

    E-Print Network [OSTI]

    1 Ecosystem Dynamics and Function Semester 1, 2013/14 Thursdays 0900 provided by ecosystems, from food and medicines to a stable climate, clean water and storm protection. This course provides an introduction to the ecosystem ecology

  4. Water Balance in Terrestrial PlantsWater Balance in Terrestrial Plants Water Regulation on LandWater Regulation on Land --PlantsPlants WWipip= W= Wrr + W+ Waa --WWtt --WWss

    E-Print Network [OSTI]

    Cochran-Stafira, D. Liane

    1 Water Balance in Terrestrial PlantsWater Balance in Terrestrial Plants Water Regulation on LandWater waters internal water WWrr =Roots=Roots WWaa = Air= Air WWtt = Transpiration= Transpiration WWss = Secretions= Secretions Water Regulation on Land - Plants Water Balance in Terrestrial PlantsWater Balance

  5. Earth Sciences Environmental Earth Sciences,

    E-Print Network [OSTI]

    Brierley, Andrew

    94 Earth Sciences­ Environmental Earth Sciences, Geology Degree options MGeol (Single Honours Degrees) Earth Sciences BSc (Single Honours Degrees) Environmental Earth Sciences Geology BSc (Joint placement. * The Geology and Environmental Earth Sciences degrees are accredited by the Geological Society

  6. Applied Ecosystem Analysis - Background : EDT the Ecosystem Diagnosis and Treatment Method.

    SciTech Connect (OSTI)

    Mobrand, Lars E.

    1996-05-01T23:59:59.000Z

    This volume consists of eight separate reports. We present them as background to the Ecosystem Diagnosis and Treatment (EDT) methodology. They are a selection from publications, white papers, and presentations prepared over the past two years. Some of the papers are previously published, others are currently being prepared for publication. In the early to mid 1980`s the concern for failure of both natural and hatchery production of Columbia river salmon populations was widespread. The concept of supplementation was proposed as an alternative solution that would integrate artificial propagation with natural production. In response to the growing expectations placed upon the supplementation tool, a project called Regional Assessment of Supplementation Project (RASP) was initiated in 1990. The charge of RASP was to define supplementation and to develop guidelines for when, where and how it would be the appropriate solution to salmon enhancement in the Columbia basin. The RASP developed a definition of supplementation and a set of guidelines for planning salmon enhancement efforts which required consideration of all factors affecting salmon populations, including environmental, genetic, and ecological variables. The results of RASP led to a conclusion that salmon issues needed to be addressed in a manner that was consistent with an ecosystem approach. If the limitations and potentials of supplementation or any other management tool were to be fully understood it would have to be within the context of a broadly integrated approach - thus the Ecosystem Diagnosis and Treatment (EDT) method was born.

  7. International Conference on Machine Control & Guidance, June 24-26, 2008 Kinematic Surface Analysis by Terrestrial Laser Scanning

    E-Print Network [OSTI]

    Giger, Christine

    Analysis by Terrestrial Laser Scanning Hans-Martin Zogg* David Grimm* ETH Zurich, Switzerland [zogg, grimm]@geod.baug.ethz.ch Abstract This paper presents terrestrial laser scanning with emphasis on kinematic surface analysis. Besides an overview of terrestrial laser scanning in general, the 2D-laser scanner SICK LMS200

  8. Terrestrial gamma ray flashes with energies up to 100 MeV produced by nonequilibrium acceleration of electrons

    E-Print Network [OSTI]

    Pasko, Victor

    . Introduction [2] Terrestrial gamma-ray flashes (TGFs) are bursts of high-energy photons originating fromTerrestrial gamma ray flashes with energies up to 100 MeV produced by nonequilibrium accelerationV) of terrestrial gamma-ray flashes (TGFs). This analysis provides the first direct evidence that TGFs are produced

  9. SCIENCE CHINA Technological Sciences

    E-Print Network [OSTI]

    Ahmad, Sajjad

    SCIENCE CHINA Technological Sciences © Science China Press and Springer-Verlag Berlin Heidelberg HU HongChang, TIAN FuQiang* & HU HePing Department of Hydraulic Engineering, State Key Laboratory as a key soil physical parameter and has been widely used to predict soil hydraulic and other related

  10. SCIENCE CHINA Technological Sciences

    E-Print Network [OSTI]

    Simons, Jack

    SCIENCE CHINA Technological Sciences © Science China Press and Springer-Verlag Berlin Heidelberg. Density-functional-theory formulation of classical and quantum Hooke's law. Sci China Tech Sci, 2014, 57- sider an equilibrium lattice without strain (=0), but elec- #12;Hu H, et al. Sci China Tech Sci April

  11. DEPARTMENT OF BIOLOGICAL SCIENCES & HEALTH SCIENCES SEMINAR SCHEDULE -SPRING 2007

    E-Print Network [OSTI]

    Karsai, Istvan

    Membrane Receptor Proteins of Escherichia coli Sept 20 Ernest C. Bernard, Entomology and Plant Pathology Museum, Louisiana State University Miocene Terrestrial Vertebrates from Louisiana Terrestrial and Marine

  12. Pacific Northwest Laboratory annual report for 1993 to the DOE Office of Energy Research. Part 2: Environmental sciences

    SciTech Connect (OSTI)

    Not Available

    1994-04-01T23:59:59.000Z

    This 1993 Annual Report from Pacific Northwest Laboratory (PNL) to the US DOE describes research in environment and health conducted during fiscal year (FY) 1993. The report is divided into four parts, each in a separate volume. This part, Volume 2, covers Environmental Sciences. The research is directed toward developing a fundamental understanding of subsurface and terrestrial systems as a basis for both managing these critical resources and addressing environmental problems such as environmental restoration and global change. There are sections on Subsurface Science, Terrestrial Science, Technology Transfer, Interactions with Educational Institutions, and Laboratory Directed Research and Development.

  13. Big Data Ecosystems Enable Scientific Discovery

    SciTech Connect (OSTI)

    Critchlow, Terence J.; Kleese van Dam, Kerstin

    2011-11-01T23:59:59.000Z

    Over the past 5 years, advances in experimental, sensor and computational technologies have driven the exponential growth in the volumes, acquisition rates, variety and complexity of scientific data. As noted by Hey et al in their 2009 e-book The Fourth Paradigm, this availability of large-quantities of scientifically meaningful data has given rise to a new scientific methodology - data intensive science. Data intensive science is the ability to formulate and evaluate hypotheses using data and analysis to extend, complement and, at times, replace experimentation, theory, or simulation. This new approach to science no longer requires scientists to interact directly with the objects of their research; instead they can utilize digitally captured, reduced, calibrated, analyzed, synthesized and visualized results - allowing them carry out 'experiments' in data.

  14. Abstract--A digital ecosystem usually refers to a collection of small and medium enterprise businesses that interacts

    E-Print Network [OSTI]

    Loke, Seng W. - Loke, Seng W.

    Abstract--A digital ecosystem usually refers to a collection of small and medium enterprise ecosystems. We introduce the idea of creating an eco- system from a number of smart devices. This ecosystem is categorised as a micro ecosystem rather than macro ecosystem. The proposed model of this digital ecosystem

  15. Explore Science

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Science Explore Science Explore Explore these Topics Activities Videos Cool Links Favorite Q&A invisible utility element Science is thinking in an organized way about things...

  16. The attitude and knowledge relationships between secondary agriculture and science students' participation in multidisciplinary education and environmental/wetland restoration 

    E-Print Network [OSTI]

    Campbell, Amy Noelle

    1994-01-01T23:59:59.000Z

    The objective of this research project was to test student knowledge and attitude changes towards wetland ecosystems, Environmental Science and Horticulture after the completion of an interdisciplinary mini-unit and ...

  17. 131Cognitive Science COGNITIVE SCIENCE

    E-Print Network [OSTI]

    Marsh, David

    131Cognitive Science COGNITIVE SCIENCE PROFESSOR ELMES* MAJOR A major in cognitive science leading courses: Cognitive Science 110, 395, 403, 473; Computer Science 111, 211; Philosophy 106, 313; Psychology Science: Com- puter Science 295 (LISP, PROLOG or C), 313, 315; Psychology 207 b. Philosophical Foundations

  18. Final Strategic Plan Released by Gulf Coast Ecosystem Restoration Taskforce

    Broader source: Energy.gov [DOE]

    Today (December 5) the Gulf Coast Ecosystem Restoration Task Force released its final strategy for long-term restoration in the Gulf, a path forward based on input from states, tribes, federal...

  19. Livestock Management in the Riparian Ecosystem1 Larry D. Bryant

    E-Print Network [OSTI]

    Livestock Management in the Riparian Ecosystem1 2 Larry D. Bryant (' Abstract.--Intensive, long at the North American Conference tthe University of Arizona, ~n, April 16-18, 1985]. Larry D. Bryant

  20. Tree Harvest in an Experimental Sand Ecosystem: Plant Effects on

    E-Print Network [OSTI]

    Vermont, University of

    Tree Harvest in an Experimental Sand Ecosystem: Plant Effects on Nutrient Dynamics and Solute control during this interval. During the 1st year after harvest, K concentrations tripled in shallow soil

  1. arctic ecosystem final: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    FROST-BOIL ECOSYSTEMS A PROJECT SUMMARY The central goal of this project to changing climate. We focus on frost-boils because: (1) The processes that are involved in the self...

  2. Incorporating Representation of Agricultural Ecosystems and Management Within IBIS

    E-Print Network [OSTI]

    Incorporating Representation of Agricultural Ecosystems and Management Within IBIS: The development of Agro-IBIS Chris Kucharik Department of Agronomy & Center for Sustainability and the Global Environment balance Soil and canopy physics Leaf physiology Minutes Phenology Budburst, senescence, dormancy Daily

  3. Stakeholder value network analysis for the mobile services ecosystem

    E-Print Network [OSTI]

    Arvind, A. S. (Amarnath Sury)

    2009-01-01T23:59:59.000Z

    The mobile services ecosystem has evolved and continues to evolve at a rapid pace adjusting to the different players competing to be part of the value creation and capture. This thesis attempts to capture a holistic view ...

  4. aquatic ecosystem restoration: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    L. A. Aguirre 2006-01-01 124 Climate change as an ecosystem architect: Implications to rare plant ecology, conservation, and restoration CiteSeer Summary: Recent advances in...

  5. agro-ecosystems caratterizzazione biologica: Topics by E-print...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Previous Page 1 2 3 4 5 6 Next Page Last Page Topic Index 1 Predicting and mitigating the global warming potential of agro-ecosystems Physics Websites Summary: Predicting and...

  6. Studies of plume condensation contamination upon surfaces of the Terrestrial Planet Finder spacecraft

    E-Print Network [OSTI]

    Pigeon, Timothy David

    2005-01-01T23:59:59.000Z

    There are two competing concepts for the Terrestrial Planet Finder (TPF) mission, one which involves a single spacecraft, and another comprised of a five craft formation. In addition, there are several propulsion options ...

  7. Atmospheric photochemistry, surface features, and potential biosignature gases of terrestrial exoplanets

    E-Print Network [OSTI]

    Hu, Renyu, Ph. D. Massachusetts Institute of Technology

    2013-01-01T23:59:59.000Z

    The endeavor to characterize terrestrial exoplanets warrants the study of chemistry in their atmospheres. Here I present a comprehensive one-dimensional photochemistry-thermochemistry model developed from the ground up for ...

  8. PHOTOCHEMISTRY IN TERRESTRIAL EXOPLANET ATMOSPHERES. I. PHOTOCHEMISTRY MODEL AND BENCHMARK CASES

    E-Print Network [OSTI]

    Hu, Renyu

    We present a comprehensive photochemistry model for exploration of the chemical composition of terrestrial exoplanet atmospheres. The photochemistry model is designed from the ground up to have the capacity to treat all ...

  9. Jampots: a Mashup System towards an E-Learning Ecosystem Bo Dong1, 2

    E-Print Network [OSTI]

    Li, Haifei

    Jampots: a Mashup System towards an E-Learning Ecosystem Bo Dong1, 2 , Qinghua Zheng1, 2 , Lingzhi believed that an E-Learning ecosystem is the next generation E-Learning. Nowadays, the current trend of Web-Learning ecosystem. A mashup approach to an E-Learning ecosystem enhances the flourish and sustainability of E

  10. Biodiversity Regulation of Ecosystem Services Coordinating Lead Authors: Sandra Diaz, David Tilman, Joseph Fargione

    E-Print Network [OSTI]

    Minnesota, University of

    Chapter 11 Biodiversity Regulation of Ecosystem Services Coordinating Lead Authors: Sandra Di.2.1 Ecosystem Resource Dynamics, with Emphasis on Primary Production 11.2.2 Ecosystem Stability, with Emphasis.3.5 Biodiversity Effects on Human Disease Regulation 11.4 Biodiversity Effects on the Provision of Marine Ecosystem

  11. Artificial ecosystem selection William Swenson, David Sloan Wilson*, and Roberta Elias

    E-Print Network [OSTI]

    Wilson, David. S.

    Artificial ecosystem selection William Swenson, David Sloan Wilson*, and Roberta Elias Department ecosystems can also be shaped by artificial selection procedures. Ecosystems initiated in the laboratory vary phenotypically and a proportion of the variation is heritable, despite the fact that the ecosystems initially

  12. LETTER doi:10.1038/nature10282 High plant diversity is needed to maintain ecosystem

    E-Print Network [OSTI]

    Minnesota, University of

    LETTER doi:10.1038/nature10282 High plant diversity is needed to maintain ecosystem services Forest , and there is consensus that this can decrease ecosystem functioning and services2­7 . It remains unclear, though, whether few8 or many9 of the species in an ecosystem are needed to sustain the provisioning of ecosystem

  13. Ecosystem carbon dioxide fluxes after disturbance in forests of North America

    E-Print Network [OSTI]

    Cohen, Ronald C.

    Ecosystem carbon dioxide fluxes after disturbance in forests of North America B. D. Amiro,1 A. G, and New Brunswick). Net ecosystem production (NEP) showed a carbon loss from all ecosystems following a standreplacing disturbance, becoming a carbon sink by 20 years for all ecosystems and by 10 years for most

  14. Chesapeake Bay ecosystem modeling program. Technical synthesis report 1993-94

    SciTech Connect (OSTI)

    Brandt, S.B.; Boynton, W.R.; Kemp, W.M.; Wetzel, R.; Bartleson, R.

    1995-03-01T23:59:59.000Z

    ;Contents: Ecosystem models for management; Ecosystem regession models; Patuxent River Sav-Littoral Ecosystem Process Model; Lower Chesapeake Bay Polyhaline Sav Model; Emergent Intertidal Marsh Process Model; Plankton-Benthos Ecosystem Process Model; Fish Bioenergetics Models; Linking Water Quality with Fish Habitat; Data Visualization; Publications and Scientific Presentations Resulting From This Research.

  15. Effect of the terrestrial magnetic field on direct-current measurements in underground pipelines

    SciTech Connect (OSTI)

    Dzhala, R.M.; Dikmarova, L.P.; Kornienko, V.Yu.

    1995-12-01T23:59:59.000Z

    The effect of the secondary field of an underground pipeline, magnetized by the terrestrial magnetic field, on noncontacting measurements of direct current flowing in it is discussed. The systematic errors of three known measurement methods are compared. A method based on the measurement of the difference between the field components parallel to the terrestrial field component orthogonal to the pipline is identified as the most accurate. 5 refs., 3 figs.

  16. Wine Science Wine Sciencee Science

    E-Print Network [OSTI]

    Wine Science Wine Sciencee Science Thomas Henick-Kling Professor of Enology Director of Viticulture & Enology Program #12;Wine Science Wine Science Growth of Washington Wine Industry #12;Wine Science Wine Science Wine Grapes utilized 2007 2008 2009 2010 WA 127,000 145,000 156,000 160,000 NY 24,000 26,000 30

  17. Terrestrial perturbation experiments as an environmental assessment tool

    SciTech Connect (OSTI)

    Suter, G.W. II

    1980-08-01T23:59:59.000Z

    The National Environmental Policy Act of 1969 (NEPA) was initially interpreted as requiring full disclosure of the environmental impacts of a federal action. Because of the limitations of time, money, and manpower, this requirement that all impacts be considered has led to superficial analysis of many important impacts. The President's Council on Environmental Quality (CEQ) has provided a solution to this problem by reinterpreting NEPA as requiring analysis of those impacts which have significant bearing on decision making. Because assessment resources can now be concentrated on a few critical issues, it should be possible to perform field perturbation experiments to provide direct evidence of the effects of a specific mixture of pollutants or physical disturbances on the specific receiving ecosystem. Techniques are described for field simulation of gaseous and particulate air pollution, soil pollutants, disturbance of the earth's surface, and disturbance of wildlife. These techniques are discussed in terms of their realism, cost, and the restrictions which they place on the measurement of ecological parameters.

  18. University of Maryland Center for Environmental Science 2012 AnnuAl RepoRt

    E-Print Network [OSTI]

    Boynton, Walter R.

    Center for environmental Science has had a long history of studying Maryland's unique ecosystems from treatment and remediation, and aquaculture food sources with less environmental impact. I am proudUniversity of Maryland Center for Environmental Science 2012 AnnuAl RepoRt #12;annUal rEport 2012

  19. Peter M. Groffman is a Senior Scientist at the Cary Institute of Ecosystem Studies in Millbrook, NY, with research interests in ecosystem, soil, landscape and microbial

    E-Print Network [OSTI]

    Florida, University of

    Peter M. Groffman is a Senior Scientist at the Cary Institute of Ecosystem Studies in Millbrook, NY, with research interests in ecosystem, soil, landscape and microbial ecology, with a focus on carbon and nitrogen) and a Convening Lead Author for the 2013 U.S. National Climate Assessment Chapter on Ecosystems, Biodiversity

  20. Innovation Ecosystem Initiative - EERE Commercialization Office

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm)HydrogenRFPTri-PartyFor manyInhibitingInnovate inInnovation

  1. Is sustainability science really a science?

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Is sustainability science really a science? Is sustainability science really a science? The team's work shows that although sustainability science has been growing explosively...

  2. Terrestrial Background Reduction in RPM Systems by Direct Internal Shielding

    SciTech Connect (OSTI)

    Robinson, Sean M.; Ashbaker, Eric D.; Schweppe, John E.

    2008-11-19T23:59:59.000Z

    Gamma-ray detection systems that are close to the earth or other sources of background radiation often require shielding, especially when trying to detect a relatively weak source. One particular case of interest that we address in this paper is that encountered by the Radiation Portal Monitors (RPMs) systems placed at border-crossing Ports of Entry (POE). These RPM systems are used to screen for illicit radiological materials, and they are often placed in situations where terrestrial background is large. In such environments, it is desirable to consider simple physical modifications that could be implemented to reduce the effects from background radiation without affecting the flow of traffic and the normal operation of the portal. Simple modifications include adding additional shielding to the environment, either inside or outside the apparatus. Previous work [2] has shown the utility of some of these shielding configurations for increasing the Signal to Noise Ratio (SNR) of gross-counting RPMs. Because the total cost for purchasing and installing RPM systems can be quite expensive, in the range of hundreds of thousands of dollars for each cargo-screening installation, these shielding variations may offer increases in detection capability for relatively small cost. Several modifications are considered here in regard to their real-world applicability, and are meant to give a general idea of the effectiveness of the schemes used to reduce background for both gross-counting and spectroscopic detectors. These scenarios are modeled via the Monte-Carlo N-Particle (MCNP) code package [1] for ease of altering shielding configurations, as well as enacting unusual scenarios prior to prototyping in the field. The objective of this paper is to provide results representative of real modifications that could enhance the sensitivity of this, as well as the next generation of radiation detectors. The models used in this work were designed to provide the most general results for an RPM. These results are therefore presented as general guidance on what shielding configurations will be the most valuable for a generalized RPM, considered in light of their economic and geometric possibility in the real world.

  3. Lawrence Berkeley National Laboratory Earth Sciences Division 1 Cyclotron Road, MS 90-1116 Berkeley, CA 94720 510-486-6455

    E-Print Network [OSTI]

    Ajo-Franklin, Jonathan

    Earth Sciences Division Energy Resources Water Resources & Environment Climate Change Climate system modeling and prediction of impacts Carbon Sequestration Ecosystem response Biosequestration Groundwater hydrocarbon recovery; methane hydrates Alternative fuels Geothermal energy Nuclear fuel cycle & waste

  4. Secrets of the Soil (LBNL Science at the Theater)

    SciTech Connect (OSTI)

    Brodie, Eoin; Northen, Trent; Jansson, Janet; Torn, Margaret

    2011-11-07T23:59:59.000Z

    Four Berkeley Lab scientists unveil the "Secrets of the Soil"at this Nov. 7, 2011 Science at the Theater event. Eoin Brodie, Janet Jansson, Margaret Torn and Trent Northen talk about their research and how soil could hold the key to our climate and energy future.The discussion was moderated by John Harte, who holds a joint professorship in the Energy and Resources Group and the Ecosystem Sciences Division of UC Berkeley's College of Natural Resources

  5. Pacific Northwest Laboratory: Annual report for 1986 to the DOE Office of Energy Research: Part 2, Environmental sciences

    SciTech Connect (OSTI)

    Not Available

    1987-09-01T23:59:59.000Z

    This report summarizes progress in environmental sciences research conducted by Pacific Northwest Laboratory (PNL) for the Office of Health and Environmental Research in FY 1986. The program is focused on terrestrial, subsurface, and coastal marine systems, and this research forms the basis, in conjunction with remote sensing, for definition and quantification of processes leading to impacts at the global level. This report is organized into sections devoted to Detection and Management of Change in Terrestrial Systems, Biogeochemical Phenomena, Subsurface Microbiology and Transport, Marine Sciences, and Theoretical (Quantitative) Ecology. Separate abstracts have been prepared for individual projects.

  6. Predicting Planets in Known Extra-Solar Planetary Systems III: Forming Terrestrial Planets

    E-Print Network [OSTI]

    Sean N. Raymond; Rory Barnes; Nathan A. Kaib

    2006-05-15T23:59:59.000Z

    Recent results have shown that many of the known extrasolar planetary systems contain regions which are stable for both Earth-mass and Saturn-mass planets. Here we simulate the formation of terrestrial planets in four planetary systems -- 55 Cancri, HD 38529, HD 37124, and HD 74156 -- under the assumption that these systems of giant planets are complete and that their orbits are well-determined. Assuming the giant planets formed and migrated quickly, then terrestrial planets may form from a second generation of planetesimals. In each case, Moon- to Mars-sized planetary embryos are placed in between the giant planets and evolved for 100 Myr. We find that planets form relatively easily in 55 Cnc, with masses up to 0.6 Earth masses and in some cases substantial water contents and orbits in the habitable zone. HD 38529 is likely to support an asteroid belt but no terrestrial planets of significant mass. No terrestrial planets form in HD 37124 and HD 74156, although in some cases 1-2 lone embryos survive for 100 Myr. If migration occurred later, depleting the planetesimal disk, then massive terrestrial planets are unlikely to form in any of these systems.

  7. 4 Assessment The assessment for the UMM Subbasin consists of terrestrial/wildlife and aquatic/fish sections

    E-Print Network [OSTI]

    Assessment for the small tributaries. Ecosystem, Diagnosis and Treatment (EDT) was not deemed appropriate with riparian and wetland hab

  8. 1 Political Science POLITICAL SCIENCE

    E-Print Network [OSTI]

    Vertes, Akos

    1 Political Science POLITICAL SCIENCE With Capitol Hill nearby and the White House just blocks away, GW is the ideal place to study political science. Students in the program benefit from rigorous study and behavioral sciences discipline in the Columbian College of Arts and Sciences, the program examines politics

  9. Ecosystems: Issues and problems. (Latest citations from the ABI/Inform database). Published Search

    SciTech Connect (OSTI)

    NONE

    1996-02-01T23:59:59.000Z

    The bibliography contains citations concerning issues and problems relating to ecosystems in different parts of the world. Preservation of resources, environmental protection, industrial impacts on ecosystems, ecological economics, biodiversity of specific ecosystems, and effects of deforestation and erosion are examined. Citations review impacts of human inhabitants, eco-tourism, and alien species on an ecosystem. The relationship to an ecosystem of pests and microbial infections is covered, and long-range planning for ecosystems is cited. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  10. Environmental Sciences Division annual progress report for period ending September 30, 1981

    SciTech Connect (OSTI)

    Auerbach, S.I.; Reichle, D.E.

    1982-04-01T23:59:59.000Z

    Research programs from the following sections and programs are summarized: aquatic ecology, environmental resources, earth sciences, terrestrial ecology, advanced fossil energy program, toxic substances program, environmental impacts program, biomass, low-level waste research and development program, US DOE low-level waste management program, and waste isolation program.

  11. Quaternary Science Reviews 24 (2005) 533569 New insights into the Weichselian environment and climate of the

    E-Print Network [OSTI]

    Ingólfsson, �lafur

    . The Bykovsky record shows how climate change, and the Last Glacial Maximum in particular, affected terrestrial and climate of the East Siberian Arctic, derived from fossil insects, plants, and mammals$ A.V. Shera,Ã?, S Academy of Sciences (RAS), 33 Leninskiy Prospect, 119071 Moscow, Russia b Paleontological Institute, RAS

  12. Environmental Sciences Division annual progress report for period ending September 30, 1983

    SciTech Connect (OSTI)

    Not Available

    1984-04-01T23:59:59.000Z

    This annual report summarizes activities in the Aquatic Ecology, Earth Sciences, Environmental Analyses, and Terrestrial Ecology sections, as well as in the Fossil Energy, Biomass, Low-Level Waste Research and Management, and Global Carbon Cycle Programs. Separate abstracts have been prepared for each section. (ACR)

  13. Balancing the Need to Develop Coastal Areas with the Desire for an Ecologically Functioning Coastal Environment: Is Net Ecosystem Improvement Possible?

    SciTech Connect (OSTI)

    Thom, Ronald M.; Williams, Greg D.; Diefenderfer, Heida L.

    2005-03-01T23:59:59.000Z

    The global human population is growing exponentially, a majority lives and works near the coast, and coastal commerce and development are critical to the economies of many nations. Hence, coastal areas will continue to be a major focus of development and economic activity. People want and need the economics provided by coastal development but they also want and need the fisheries and social commodities supported by estuarine and coastal ecosystems. Because of these facts, we view the challenge of balancing coastal development with enhancing nearshore marine and estuarine ecosystems (i.e., net ecosystem improvement) as the top priority for coastal researchers in this century. Our restoration research in Pacific Northwest estuaries and participation in the design and mitigation of nearshore structures has largely dealt with these competing goals. To this end, we have applied conceptual models, comprehensive assessment methods, and principles of restoration ecology, conservation biology and adaptive management to incorporate science into decisions about use of estuarine systems. Case studies of Bainbridge Island and the Columbia River demonstrate the use of objective, defensible methods to prioritize estuarine areas for preservation, conservation and restoration. Case studies of Clinton, WA and Port Townsend, WA demonstrate the incorporation of an ecological perspective and technological solutions into design projects that affect the nearshore. Adaptive management has allowed coastal development and restoration uncertainties to be better evaluated, with the information used to improve management decisions. Although unproven on a large scale, we think that these kinds of methods can contribute to the net improvement of already degraded ecosystems. The challenges include applied science to understand the issues, education, incentives, empirical data (not rehashing of reviews), cumulative impact analysis, and an effective adaptive management program. Because the option of net ecosystem improvement is often more costly than other alternatives, commitment by the local or regional community to this approach is essential.

  14. Survival of Terrestrial Planets in the Presence of Giant Planet Migration

    E-Print Network [OSTI]

    Avi M. Mandell; Steinn Sigurdsson

    2003-11-10T23:59:59.000Z

    The presence of ``Hot Jupiters'', Jovian mass planets with very short orbital periods orbiting nearby main sequence stars, has been proposed to be primarily due to the orbital migration of planets formed in orbits initially much further from the parent star. The migration of giant planets would have profound effects on the evolution of inner terrestrial planets in these systems, and previous analyses have assumed that no terrestrial planets survive after migration has occurred. We present numerical simulations showing that a significant fraction of terrestrial planets could survive the migration process, eventually returning to circular orbits relatively close to their original positions. A fraction of the final orbits are in the Habitable Zone, suggesting that planetary systems with close-in giant planets are viable targets for searches for Earth-like habitable planets around other stars.

  15. Metal accumulation in terrestrial pulmonates at a lead/zinc smelter site in Arnoldstein, Austria

    SciTech Connect (OSTI)

    Rabitsch, W.B. [Univ. of Vienna, Vienna (Austria)] [Univ. of Vienna, Vienna (Austria)

    1996-05-01T23:59:59.000Z

    Recently,the suitability of terrestrial gastropods was reviewed as quantitative indicator organisms for environmental metal pollution. The peculiar metal accumulation capabilities in molluscs have been known in detail for decades, but {open_quotes}only few data are available for terrestrial pulmonates{close_quotes}. Furthermore, data are restricted to only a few species, and despite similarities in metabolic pathways, species-specific properties in metal-budget strategies exist. Information concerning the potential range of metal burden in these animals form the field are, therefore, of ecophysical relevance. Snails satisfy a basic demand as quantitative indicators of the bioavailable fraction of terrestrial metal pollution. In this study concentrations of lead, cadmium, copper and zinc were measured in tissues of 4 species of snails collected in the vicinity of a lead/zinc smelter with a long history of pollution. 23 refs., 3 figs., 1 tab.

  16. Faculty of Science Environmental Science

    E-Print Network [OSTI]

    quality control and monitoring · Environmental management and conservation · Education with additionalFaculty of Science Environmental Science If you have a natural curiosity and concern about the environment, Environmental Science offers you exciting career opportunities. It applies scientific tools from

  17. A review of "Galileo: Science & Faith" by William Carroll

    E-Print Network [OSTI]

    Giostra, Alessandro

    2015-01-01T23:59:59.000Z

    on that subject, it succeeds in rendering the basic aspects of the Galileo affair clear. The author, William Carroll, is Thomas Aquinas Fellow in Theology and Science at the University of Oxford. Galileo has become an ‘Icon of Modernity’ (3–10), and one... point in the Galileo affair, namely the impossibility to provide a coherent proof of the terrestrial motion. More in detail, Galileo believed that an argument from the phenomenon of tides would provide such a demonstration; actually, his argument...

  18. Science | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Science Computing, Environment & Life Sciences Energy & Global Security Photon Sciences Physical Sciences & Engineering Energy Frontier Research Centers Institute for Molecular...

  19. How important is diversity for capturing environmental-change responses in ecosystem models?

    E-Print Network [OSTI]

    Prowe, A. E. F.

    Marine ecosystem models used to investigate how global change affects ocean ecosystems and their functioning typically omit pelagic plankton diversity. Diversity, however, may affect functions such as primary production ...

  20. Perennial grasslands enhance biodiversity and multiple ecosystem services in bioenergy landscapes

    E-Print Network [OSTI]

    Landis, Doug

    of ecosystem functions, promoting the creation of multifunctional agricultural landscapes. We foundPerennial grasslands enhance biodiversity and multiple ecosystem services in bioenergy landscapes, Michigan State University, East Lansing, MI 48824; b Great Lakes Bioenergy Research Center, US Department

  1. Energy balance and partition in Inner Mongolia steppe ecosystems with different land use types

    E-Print Network [OSTI]

    Chen, Jiquan

    Energy balance and partition in Inner Mongolia steppe ecosystems with different land use types surface, including radiation balance, energy partitioning, aerodynamic characteristics, leaf area index records of the surface energy balance are currently available for grassland ecosystems, especially

  2. ELSEVIER Ecological Economics 14(1995) 143-159 Ecological economic modeling and valuation of ecosystems

    E-Print Network [OSTI]

    Boynton, Walter R.

    1995-01-01T23:59:59.000Z

    -economicmodeling; Ecosystem models; Patuxent River basin; Spatial modeling; Land use 1. Introduction In its report, Reducing of ecological systems. Startingwith an existing spatially articulated ecosystem model of the Pqtuxent River

  3. Development and application of mass-balanced ecological network models for kelp forest ecosystems

    E-Print Network [OSTI]

    Beas, Rodrigo

    2014-01-01T23:59:59.000Z

    Ecological network models for kelp forest ecosystems . . 1.23 Ecosystem-wide e?ects of giant kelp, Macrocystis pyrifera,3.2.6 Characterization of giant kelp biomass density

  4. Community Page A Holistic Approach to Marine Eco-Systems Biology

    E-Print Network [OSTI]

    Sullivan, Matthew B.

    Community Page A Holistic Approach to Marine Eco-Systems Biology Eric Karsenti1 *, Silvia G. Acinas-year study of the global ocean ecosystem aboard the ship Tara. A unique sampling programme encompass

  5. Interactive Visualization of Complex Plant Ecosystems Oliver Deussen1

    E-Print Network [OSTI]

    Reiterer, Harald

    a method for interactive rendering of large outdoor scenes. Complex polygonal plant models and whole plant most of the geometry drastically. With our system, we are able to interactively render very complex naturally. The importance of interactive yet realistic rendering of these very complex ecosystem models

  6. Hydrogen and bioenergetics in the Yellowstone geothermal ecosystem

    E-Print Network [OSTI]

    #12;Hydrogen and bioenergetics in the Yellowstone geothermal ecosystem John R. Spear*, Jeffrey J of organisms of the kinds that derive energy for primary productivity from the oxidation of molecular hydrogen of energy for primary production in the Yellowstone high-temperature ecosys- tem. Hydrogen concentrations

  7. Regional Management of Mediterranean Ecosystems in Spain1

    E-Print Network [OSTI]

    Standiford, Richard B.

    Regional Management of Mediterranean Ecosystems in Spain1 Jose A. Carrera, Estanislao de Simon Conservacion de la Naturaleza), Madrid, Spain. Abstract: Management of the fragile and greatly modified level studies on reforestation, hydrol- ogy, and desert control. Most of Spain has a typical

  8. Ecosystem feedbacks arising from wind transport in drylands: Results

    E-Print Network [OSTI]

    Ecosystem feedbacks arising from wind transport in drylands: Results from field experiments fire frequency Woody mortality Introduction of exotic grasses Is cover dominated by annuals or short intensity precipitation Low wind speeds Low P/PE High variability High intensity precipitation High wind

  9. BEE 371, Physical Hydrology for Ecosystems Spring 2007

    E-Print Network [OSTI]

    Walter, M.Todd

    BEE 371, Physical Hydrology for Ecosystems Spring 2007 Credit: 3 hours Catalogue description: This is an introduction to fundamental hydrology emphasizing physical hydrological processes and the roles interactions among hydrology, ecology, biogeochemistry, and human activities. This course focuses on surface and near

  10. BEE 3710: Syllabus Spring 2013 Physical Hydrology for Ecosystems

    E-Print Network [OSTI]

    Walter, M.Todd

    BEE 3710: Syllabus Spring 2013 01/21/13 Physical Hydrology for Ecosystems BEE 3710 www.hydrology: Physical Hydrology, second edition. S. Lawrence Dingman. 2002. Prentice Hall. pp. 600. Meeting: TR 9 to fundamental hydrology emphasizing physical hydrological processes and the interactions among hydrology

  11. Next-Generation Ecosystem Experiments NGEE Arctic Quarterly Report

    E-Print Network [OSTI]

    1 Next-Generation Ecosystem Experiments ­ NGEE Arctic Quarterly Report December 31, 2011 A progress Dynamics Model Used to Design Permafrost Simulator 2 Details at a Glance 3 Progress and Accomplishments 3 sample in a sleeve of highly conductive copper foil (shown in red) and then cooling coils placed

  12. Restoring Stream Ecosystems: Lessons from a Midwestern State

    E-Print Network [OSTI]

    Lamberti, Gary A.

    Restoring Stream Ecosystems: Lessons from a Midwestern State Ashley H. Moerke1,2 and Gary A. Lamberti1 Abstract Reach-scale stream restorations are becoming a common approach to repair degraded and nature of reach-scale stream restorations in this midwestern U.S. state. For 10 attempted restorations

  13. Estimation of Parameters in Carbon Sequestration Models from Net Ecosystem

    E-Print Network [OSTI]

    White, Luther

    Estimation of Parameters in Carbon Sequestration Models from Net Ecosystem Exchange Data Luther in the context of a deterministic com- partmental carbon sequestration system. Sensitivity and approximation usefulness in the estimation of parameters within a compartmental carbon sequestration model. Previously we

  14. ECOSystem: Managing Energy as a First Class Operating System Resource

    E-Print Network [OSTI]

    Vahdat, Amin

    ECOSystem: Managing Energy as a First Class Operating System Resource £ Heng Zeng, Carla S. Ellis design. This paper explores how to support energy as a first-class operating system resource. En- ergy the limited energy resource among competing tasks. 1. INTRODUCTION Traditionally, the operating system plays

  15. INTRODUCTION Coastal ecosystems have been exposed to serious pollution for

    E-Print Network [OSTI]

    Alvarez, Nadir

    4010 INTRODUCTION Coastal ecosystems have been exposed to serious pollution for several decades because of increased human activity. Modern agriculture is a major contributor to coastal pollution levels of pollution and potentially harming marine organisms (Banerjee et al., 1996). Some organisms

  16. A new way to study the changing Arctic ecosystem

    ScienceCinema (OSTI)

    Hubbard, Susan

    2013-05-29T23:59:59.000Z

    Berkeley Lab scientists Susan Hubbard and Margaret Torn discuss the proposed Next Generation Ecosystem Experiment, which is designed to answer one of the most urgent questions facing researchers today: How will a changing climate impact the Arctic, and how will this in turn impact the planet's climate? More info: http://newscenter.lbl.gov/feature-stories/2011/09/14/alaska-climate-change/

  17. Ecosystem Respiration in a Cool Temperate Bog Depends on Peat

    E-Print Network [OSTI]

    Roulet, Nigel T.

    Ecosystem Respiration in a Cool Temperate Bog Depends on Peat Temperature But Not Water Table P-summer (July-August). As anticipated, there was a strong relationship between ER and peat temperatures (r2 = 0-table depth (r2 = 0.11). A laboratory incubation of peat cores at different moisture contents showed that CO2

  18. Climate change-induced shifts in fire for Mediterranean ecosystems

    E-Print Network [OSTI]

    Moritz, Max A.

    RESEARCH PAPER Climate change-induced shifts in fire for Mediterranean ecosystems Enric Batllori1 Climate change, climate uncertainty, fire-climate relationship, fire shifts, Mediterranean biome Mediterranean biome and identify potential shifts in fire activity under an ensemble of global climate

  19. Ventures in science status report, Summer 1992

    SciTech Connect (OSTI)

    Not Available

    1992-11-01T23:59:59.000Z

    The Ventures in Science summer program is directed towards students who are from underrepresented minority groups in mathematics and science professions. The target group of 40 was drawn from eligible students who will be entering high school freshman in the fall of 1992. 450 students applied. The theme for the summer is Chicago as an Ecosystem. The students are instructed in integrated math and science (2 hours), English/ESL (1 1/2 hrs.), counseling (1 hr.) and, physical education (1 hr.) each day four days a week. Integrated math and science are team taught. Parents are invited to participate in two workshops that will be presented based on their input. Parents may also visit the program at any time and participate in any field trip.

  20. Climate Change, Coral Reef Ecosystems, and Management Options for Marine Protected Areas

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    and pollution of coastal watersheds can have far-reaching effects on marine ecosystems, for example, the Gulf of Mexico ‘‘

  1. Terrestrial Carbon Cycle Dynamics under Recent and Future Climate Change H. DAMON MATTHEWS, ANDREW J. WEAVER, AND KATRIN J. MEISSNER

    E-Print Network [OSTI]

    Meissner, Katrin Juliane

    extensive research over the past several years, the uncertainty range on estimates of terrestrial carbonTerrestrial Carbon Cycle Dynamics under Recent and Future Climate Change H. DAMON MATTHEWS, ANDREW, Victoria, British Columbia, Canada (Manuscript received 18 June 2004, in final form 21 October 2004

  2. Dynamics of metal-silicate separation in a terrestrial magma Tobias Hoink, Jorg Schmalzl, and Ulrich Hansen

    E-Print Network [OSTI]

    Schmalzl, Jörg

    Dynamics of metal-silicate separation in a terrestrial magma ocean Tobias Ho¨ink, Jo¨rg Schmalzl-48149 Mu¨nster, Germany (hoeink@earth.uni-muenster.de) [1] In a terrestrial magma ocean, the metal-silicate the separation of metal droplets from the liquid silicate, occurs on a characteristic timescale, which

  3. Remote Terrestrial Sites as Operational/Logistics Analogs for Moon/Mars Bases: the Haughton Mars Project

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Remote Terrestrial Sites as Operational/Logistics Analogs for Moon/Mars Bases: the Haughton Mars coordinating the logistics and resupply of far-flung planetary bases. A number of logistics methods have been terrestrial logistics methods were tested in the context of (analog) planetary exploration. A comprehensive

  4. SEDIMENTS, SEC 4 SEDIMENT-ECOLOGY INTERACTIONS POSITION PAPER Anthropogenic pollutants affect ecosystem services

    E-Print Network [OSTI]

    Cirpka, Olaf Arie

    ecosystem services of freshwater sediments: the need for a "triad plus x" approach Sabine Ulrike Gerbersdorf ecosystem services such as nutrient recycling or self-purification which extend beyond the aquatic systems, microbiological/molecular approaches to unravel changes of microbial ecosystems, up

  5. 2012 NSTIC/IDtrust Workshop: "Technologies and Standards Enabling the Identity Ecosystem"

    E-Print Network [OSTI]

    Perkins, Richard A.

    2012 NSTIC/IDtrust Workshop: "Technologies and Standards Enabling the Identity Ecosystem" March, Gartner 9:30 am Keynote Mapping the Global IDentity Ecosystem Speakers: Karen O'Donoghue, ISOC and Lucy Lynch, ISOC 10:00 am Panel: Gaps and Challenges for Advancing the Global Identity Ecosystem

  6. Predicted climate change alters the indirect effect of predators on an ecosystem process

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    Predicted climate change alters the indirect effect of predators on an ecosystem process Janet R to occur with climate change will likely influence how predators indirectly affect an essential ecosystem and severity of droughts (1, 2). Changes in rainfall will likely affect ecosystem processes such as primary

  7. Ecosystem-based adaptation to climate change: what role for policy-makers, society and scientists?

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Ecosystem-based adaptation to climate change: what role for policy-makers, society and scientists B., Martinez C., Imbach P., 2009. Ecosystem-based adaptation to climate change: what role for policy and livelihoods depend largely on ecosystem services, policies for adaptation to climate change should take

  8. Long-term ecosystem level experiments at Toolik Lake, Alaska, and at Abisko, Northern Sweden: generalizations

    E-Print Network [OSTI]

    Long-term ecosystem level experiments at Toolik Lake, Alaska, and at Abisko, Northern Sweden: generalizations and differences in ecosystem and plant type responses to global change M . T. VA N W I J K *w , K, Darwin Building, King Buildings, Mayfield Road, Edinburgh EH9 3JU, UK, wThe Ecosystem Center, Marine

  9. Final Independent External Peer Review Report for the Mississippi River Gulf Outlet Ecosystem

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Final Independent External Peer Review Report for the Mississippi River ­ Gulf Outlet Ecosystem Prepared for Department of the Army U.S. Army Corps of Engineers Ecosystem Restoration Planning Center Independent External Peer Review Report for the Mississippi River-Gulf Outlet Ecosystem Restoration Plan

  10. Modeling of ecosystem processes on the Oregon shelf during the 2001 summer upwelling

    E-Print Network [OSTI]

    Gan, Jian-Ping

    Modeling of ecosystem processes on the Oregon shelf during the 2001 summer upwelling Y. H. Spitz 2005; accepted 19 August 2005; published 22 October 2005. [1] Three-dimensional ecosystem response-based ecosystem model coupled to a high-resolution circulation model. We investigate, in particular, the influence

  11. Five Stages of the Alaskan Arctic Cold Season with Ecosystem Implications

    E-Print Network [OSTI]

    Sturm, Matthew

    1 Five Stages of the Alaskan Arctic Cold Season with Ecosystem Implications Peter Q. Olsson1 ecosystem processes. During the two autumnal stages (Early Snow and Early Cold) soils remain warm, unfrozen with the least amount of biological activity and have the least impact on the ecosystem. However, Early Snow

  12. Lagoon of Venice ecosystem: Seasonal dynamics and environmental guidance with uncertainty analyses and error subspace

    E-Print Network [OSTI]

    Leonard, John J.

    Lagoon of Venice ecosystem: Seasonal dynamics and environmental guidance with uncertainty analyses the seasonal ecosystem dynamics of the Lagoon of Venice and provide guidance on the monitoring and management stochastic ecosystem modeling components are developed to represent prior uncertainties in the Lagoon

  13. How Do Developers React to API Deprecation? The Case of a Smalltalk Ecosystem

    E-Print Network [OSTI]

    Nierstrasz, Oscar

    How Do Developers React to API Deprecation? The Case of a Smalltalk Ecosystem Romain Robbes PLEIAD extent and impact of these API changes in practice, on an entire software ecosystem associated effects across an entire ecosystem. Our case study subject is the development community gravitating around

  14. Viability Kernel for Ecosystem Management Models Eladio Oca~na Anaya

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Viability Kernel for Ecosystem Management Models Eladio Oca~na Anaya Michel De Lara Ricardo task in general. We study the viability of nonlinear generic ecosystem models under preservation in the Peruvian upwelling ecosystem. Key words: control theory; state constraints; viability; predator

  15. Disturbance dynamics and ecosystem-based forest management KALEV JO~ GISTE1

    E-Print Network [OSTI]

    PREFACE Disturbance dynamics and ecosystem-based forest management KALEV JO~ GISTE1 , W. KEITH and Analysis Program, St Paul, Minnesota, USA Ecosystem-based management is intended to bal- ance ecological ecosystem is usually defined through productivity, biodiversity, stability or other terms. However

  16. IMPLICATIONS ON ECOSYSTEM SERVICES The impact of selective logging on Forest structure, Plant Diversity

    E-Print Network [OSTI]

    Paparella, Francesco

    IMPLICATIONS ON ECOSYSTEM SERVICES The impact of selective logging on Forest structure, Plant on the ecosystem, even though the available scientific literature is scanty and somewhat contradictory and other infestants. A simple mathematical model may explain these data. 1 IMPLICATIONS ON ECOSYSTEM

  17. Climate-sensitive ecosystem carbon dynamics along the soil chronosequence of the Damma glacier forefield,

    E-Print Network [OSTI]

    Gilli, Adrian

    Climate-sensitive ecosystem carbon dynamics along the soil chronosequence of the Damma glacier formation and ecosystem development. We determined soil carbon and nitrogen contents and their stable by small end moraines that resulted from two gla- cier re-advances. The net ecosystem carbon balance (NECB

  18. Ecosystem response to upwelling off the Oregon coast: Behavior of three nitrogen-based models

    E-Print Network [OSTI]

    Pierce, Stephen

    Ecosystem response to upwelling off the Oregon coast: Behavior of three nitrogen-based models Y. H; published 6 March 2003. [1] The behavior of three ecosystem models is analyzed for upwelling off the Oregon coast as a function of the number of model components. The first ecosystem model includes dissolved

  19. An E-learning Ecosystem Based on Cloud Computing Infrastructure Bo Dong1, 2

    E-Print Network [OSTI]

    Li, Haifei

    An E-learning Ecosystem Based on Cloud Computing Infrastructure Bo Dong1, 2 , Qinghua Zheng1, 2 that an e-learning ecosystem is the next generation e- learning. However, the current models of e-learning ecosystems lack the support of underlying infrastructures, which can dynamically allocate the required

  20. Soil Biology & Biochemistry 38 (2006) 30013002 A synthesis of soil biodiversity and ecosystem functioning in

    E-Print Network [OSTI]

    Wall, Diana

    2006-01-01T23:59:59.000Z

    and ecosystem functioning in Victoria Land, Antarctica Since the 1970s, ecological research on the ice and nutritional resources. These ecosystems are taxonomically and functionally simple, thus providing and comprehensively than is normally the case for soils and to link soil species explicitly with ecosystem functioning