skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: ORCHIDEE-PEAT (revision 4596), a model for northern peatland CO 2, water, and energy fluxes on daily to annual scales

Abstract

Peatlands store substantial amounts of carbon and are vulnerable to climate change. We present a modified version of the Organising Carbon and Hydrology In Dynamic Ecosystems (ORCHIDEE) land surface model for simulating the hydrology, surface energy, and CO 2 fluxes of peatlands on daily to annual timescales. The model includes a separate soil tile in each 0.5° grid cell, defined from a global peatland map and identified with peat-specific soil hydraulic properties. Runoff from non-peat vegetation within a grid cell containing a fraction of peat is routed to this peat soil tile, which maintains shallow water tables. The water table position separates oxic from anoxic decomposition. The model was evaluated against eddy-covariance (EC) observations from 30 northern peatland sites, with the maximum rate of carboxylation ( V cmax) being optimized at each site. Regarding short-term day-to-day variations, the model performance was good for gross primary production (GPP) ( r 2 = 0.76; Nash–Sutcliffe modeling efficiency, MEF  = 0.76) and ecosystem respiration (ER, r 2 = 0.78, MEF = 0.75), with lesser accuracy for latent heat fluxes (LE, r 2 = 0.42, MEF = 0.14) and and net ecosystem CO 2 exchange (NEE, r 2 = 0.38, MEF = 0.26). Seasonal variations in GPP, ER, NEE, and energy fluxes on monthly scales showed moderate to highmore » r 2 values (0.57–0.86). For spatial across-site gradients of annual mean GPP, ER, NEE, and LE, r 2 values of 0.93, 0.89, 0.27, and 0.71 were achieved, respectively. Water table (WT) variation was not well predicted ( r 2 < 0.1), likely due to the uncertain water input to the peat from surrounding areas. However, the poor performance of WT simulation did not greatly affect predictions of ER and NEE. We found a significant relationship between optimized V cmax and latitude (temperature), which better reflects the spatial gradients of annual NEE than using an average V cmax value« less

Authors:
; ORCiD logo; ; ORCiD logo; ; ORCiD logo; ; ; ORCiD logo; ; ORCiD logo; ; ; ; ORCiD logo; ; ; ORCiD logo; ; more »; ORCiD logo; ; ; ; ; ; ; ; ORCiD logo; ; ORCiD logo; ; ; ; ORCiD logo; ; ; ; ORCiD logo; ORCiD logo; ; ORCiD logo; ORCiD logo; ; ORCiD logo; ORCiD logo; ; ; ; ORCiD logo; ; ORCiD logo; ORCiD logo; « less
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
Contributing Org.:
European Geosciences Union
OSTI Identifier:
1563945
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Geoscientific Model Development (Online)
Additional Journal Information:
Journal Volume: 11; Journal Issue: 2; Journal ID: ISSN 1991-9603
Publisher:
European Geosciences Union
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES

Citation Formats

Qiu, Chunjing, Zhu, Dan, Ciais, Philippe, Guenet, Bertrand, Krinner, Gerhard, Peng, Shushi, Aurela, Mika, Bernhofer, Christian, Brümmer, Christian, Bret-Harte, Syndonia, Chu, Housen, Chen, Jiquan, Desai, Ankur R., Dušek, Jiří, Euskirchen, Eugénie S., Fortuniak, Krzysztof, Flanagan, Lawrence B., Friborg, Thomas, Grygoruk, Mateusz, Gogo, Sébastien, Grünwald, Thomas, Hansen, Birger U., Holl, David, Humphreys, Elyn, Hurkuck, Miriam, Kiely, Gerard, Klatt, Janina, Kutzbach, Lars, Largeron, Chloé, Laggoun-Défarge, Fatima, Lund, Magnus, Lafleur, Peter M., Li, Xuefei, Mammarella, Ivan, Merbold, Lutz, Nilsson, Mats B., Olejnik, Janusz, Ottosson-Löfvenius, Mikaell, Oechel, Walter, Parmentier, Frans-Jan W., Peichl, Matthias, Pirk, Norbert, Peltola, Olli, Pawlak, Włodzimierz, Rasse, Daniel, Rinne, Janne, Shaver, Gaius, Schmid, Hans Peter, Sottocornola, Matteo, Steinbrecher, Rainer, Sachs, Torsten, Urbaniak, Marek, Zona, Donatella, and Ziemblinska, Klaudia. ORCHIDEE-PEAT (revision 4596), a model for northern peatland CO2, water, and energy fluxes on daily to annual scales. United States: N. p., 2018. Web. doi:10.5194/gmd-11-497-2018.
Qiu, Chunjing, Zhu, Dan, Ciais, Philippe, Guenet, Bertrand, Krinner, Gerhard, Peng, Shushi, Aurela, Mika, Bernhofer, Christian, Brümmer, Christian, Bret-Harte, Syndonia, Chu, Housen, Chen, Jiquan, Desai, Ankur R., Dušek, Jiří, Euskirchen, Eugénie S., Fortuniak, Krzysztof, Flanagan, Lawrence B., Friborg, Thomas, Grygoruk, Mateusz, Gogo, Sébastien, Grünwald, Thomas, Hansen, Birger U., Holl, David, Humphreys, Elyn, Hurkuck, Miriam, Kiely, Gerard, Klatt, Janina, Kutzbach, Lars, Largeron, Chloé, Laggoun-Défarge, Fatima, Lund, Magnus, Lafleur, Peter M., Li, Xuefei, Mammarella, Ivan, Merbold, Lutz, Nilsson, Mats B., Olejnik, Janusz, Ottosson-Löfvenius, Mikaell, Oechel, Walter, Parmentier, Frans-Jan W., Peichl, Matthias, Pirk, Norbert, Peltola, Olli, Pawlak, Włodzimierz, Rasse, Daniel, Rinne, Janne, Shaver, Gaius, Schmid, Hans Peter, Sottocornola, Matteo, Steinbrecher, Rainer, Sachs, Torsten, Urbaniak, Marek, Zona, Donatella, & Ziemblinska, Klaudia. ORCHIDEE-PEAT (revision 4596), a model for northern peatland CO2, water, and energy fluxes on daily to annual scales. United States. doi:10.5194/gmd-11-497-2018.
Qiu, Chunjing, Zhu, Dan, Ciais, Philippe, Guenet, Bertrand, Krinner, Gerhard, Peng, Shushi, Aurela, Mika, Bernhofer, Christian, Brümmer, Christian, Bret-Harte, Syndonia, Chu, Housen, Chen, Jiquan, Desai, Ankur R., Dušek, Jiří, Euskirchen, Eugénie S., Fortuniak, Krzysztof, Flanagan, Lawrence B., Friborg, Thomas, Grygoruk, Mateusz, Gogo, Sébastien, Grünwald, Thomas, Hansen, Birger U., Holl, David, Humphreys, Elyn, Hurkuck, Miriam, Kiely, Gerard, Klatt, Janina, Kutzbach, Lars, Largeron, Chloé, Laggoun-Défarge, Fatima, Lund, Magnus, Lafleur, Peter M., Li, Xuefei, Mammarella, Ivan, Merbold, Lutz, Nilsson, Mats B., Olejnik, Janusz, Ottosson-Löfvenius, Mikaell, Oechel, Walter, Parmentier, Frans-Jan W., Peichl, Matthias, Pirk, Norbert, Peltola, Olli, Pawlak, Włodzimierz, Rasse, Daniel, Rinne, Janne, Shaver, Gaius, Schmid, Hans Peter, Sottocornola, Matteo, Steinbrecher, Rainer, Sachs, Torsten, Urbaniak, Marek, Zona, Donatella, and Ziemblinska, Klaudia. Mon . "ORCHIDEE-PEAT (revision 4596), a model for northern peatland CO2, water, and energy fluxes on daily to annual scales". United States. doi:10.5194/gmd-11-497-2018. https://www.osti.gov/servlets/purl/1563945.
@article{osti_1563945,
title = {ORCHIDEE-PEAT (revision 4596), a model for northern peatland CO2, water, and energy fluxes on daily to annual scales},
author = {Qiu, Chunjing and Zhu, Dan and Ciais, Philippe and Guenet, Bertrand and Krinner, Gerhard and Peng, Shushi and Aurela, Mika and Bernhofer, Christian and Brümmer, Christian and Bret-Harte, Syndonia and Chu, Housen and Chen, Jiquan and Desai, Ankur R. and Dušek, Jiří and Euskirchen, Eugénie S. and Fortuniak, Krzysztof and Flanagan, Lawrence B. and Friborg, Thomas and Grygoruk, Mateusz and Gogo, Sébastien and Grünwald, Thomas and Hansen, Birger U. and Holl, David and Humphreys, Elyn and Hurkuck, Miriam and Kiely, Gerard and Klatt, Janina and Kutzbach, Lars and Largeron, Chloé and Laggoun-Défarge, Fatima and Lund, Magnus and Lafleur, Peter M. and Li, Xuefei and Mammarella, Ivan and Merbold, Lutz and Nilsson, Mats B. and Olejnik, Janusz and Ottosson-Löfvenius, Mikaell and Oechel, Walter and Parmentier, Frans-Jan W. and Peichl, Matthias and Pirk, Norbert and Peltola, Olli and Pawlak, Włodzimierz and Rasse, Daniel and Rinne, Janne and Shaver, Gaius and Schmid, Hans Peter and Sottocornola, Matteo and Steinbrecher, Rainer and Sachs, Torsten and Urbaniak, Marek and Zona, Donatella and Ziemblinska, Klaudia},
abstractNote = {Peatlands store substantial amounts of carbon and are vulnerable to climate change. We present a modified version of the Organising Carbon and Hydrology In Dynamic Ecosystems (ORCHIDEE) land surface model for simulating the hydrology, surface energy, and CO2 fluxes of peatlands on daily to annual timescales. The model includes a separate soil tile in each 0.5° grid cell, defined from a global peatland map and identified with peat-specific soil hydraulic properties. Runoff from non-peat vegetation within a grid cell containing a fraction of peat is routed to this peat soil tile, which maintains shallow water tables. The water table position separates oxic from anoxic decomposition. The model was evaluated against eddy-covariance (EC) observations from 30 northern peatland sites, with the maximum rate of carboxylation (Vcmax) being optimized at each site. Regarding short-term day-to-day variations, the model performance was good for gross primary production (GPP) (r2 = 0.76; Nash–Sutcliffe modeling efficiency, MEF  = 0.76) and ecosystem respiration (ER, r2 = 0.78, MEF = 0.75), with lesser accuracy for latent heat fluxes (LE, r2 = 0.42, MEF = 0.14) and and net ecosystem CO2 exchange (NEE, r2 = 0.38, MEF = 0.26). Seasonal variations in GPP, ER, NEE, and energy fluxes on monthly scales showed moderate to high r2 values (0.57–0.86). For spatial across-site gradients of annual mean GPP, ER, NEE, and LE, r2 values of 0.93, 0.89, 0.27, and 0.71 were achieved, respectively. Water table (WT) variation was not well predicted (r2 < 0.1), likely due to the uncertain water input to the peat from surrounding areas. However, the poor performance of WT simulation did not greatly affect predictions of ER and NEE. We found a significant relationship between optimized Vcmax and latitude (temperature), which better reflects the spatial gradients of annual NEE than using an average Vcmax value},
doi = {10.5194/gmd-11-497-2018},
journal = {Geoscientific Model Development (Online)},
issn = {1991-9603},
number = 2,
volume = 11,
place = {United States},
year = {2018},
month = {1}
}

Journal Article:

Figures / Tables:

Figure 1 Figure 1: Schematic of the hydrology module in ORCHIDEE. Water balance components: (a) a soil tile with either trees or grasses; (b) a peatland soil tile. Black dashed lines indicate the position of nodes in the 11 soil layers of the model. Blue lines: vertical profiles of saturated hydraulic conductivitymore » for different soil textures. Green lines: diffusivity for different soil textures. The vertical axis indicates soil depth, the horizontal axis indicates values of saturated hydraulic conductivity ($K$ , mm day−1) and diffusivity ($D$, mm2 day−1). Note that the horizontal axis is on a base-10 logarithmic scale.« less

Save / Share:

Works referenced in this record:

Climatic variability, hydrologic anomaly, and methane emission can turn productive freshwater marshes into net carbon sources
journal, November 2014

  • Chu, Housen; Gottgens, Johan F.; Chen, Jiquan
  • Global Change Biology, Vol. 21, Issue 3
  • DOI: 10.1111/gcb.12760

A functional classification of wetland plants
journal, October 1993

  • Boutin, Céline; Keddy, Paul A.
  • Journal of Vegetation Science, Vol. 4, Issue 5
  • DOI: 10.2307/3236124

Multi-scale validation of a new soil freezing scheme for a land-surface model with physically-based hydrology
journal, January 2012


Spatial and temporal dynamics in eddy covariance observations of methane fluxes at a tundra site in northeastern Siberia
journal, January 2011

  • Parmentier, F. J. W.; van Huissteden, J.; van der Molen, M. K.
  • Journal of Geophysical Research, Vol. 116, Issue G3
  • DOI: 10.1029/2010JG001637

Ecosystem-atmosphere exchange of carbon dioxide over a mixed hardwood forest in northern lower Michigan
journal, January 2003


The Limits to Peat Bog Growth
journal, January 1984

  • Clymo, R. S.
  • Philosophical Transactions of the Royal Society B: Biological Sciences, Vol. 303, Issue 1117
  • DOI: 10.1098/rstb.1984.0002

In situ and laboratory non-additive litter mixture effect on C dynamics of Sphagnum rubellum and Molinia caerulea litters
journal, June 2015

  • Gogo, Sébastien; Laggoun-Défarge, Fatima; Merzouki, Fatima
  • Journal of Soils and Sediments, Vol. 16, Issue 1
  • DOI: 10.1007/s11368-015-1178-3

McGill wetland model: evaluation of a peatland carbon simulator developed for global assessments
journal, January 2010


Variations in net ecosystem exchange of carbon dioxide in a boreal mire: Modeling mechanisms linked to water table position
journal, January 2007

  • Yurova, Alla; Wolf, Annett; Sagerfors, Jörgen
  • Journal of Geophysical Research, Vol. 112, Issue G2
  • DOI: 10.1029/2006JG000342

Photosynthesis or persistence: nitrogen allocation in leaves of evergreen and deciduous Quercus species
journal, August 2004


Annual CO 2 exchange between a nutrient-poor, minerotrophic, boreal mire and the atmosphere : THREE YEARS OF CO
journal, January 2008

  • Sagerfors, J.; Lindroth, A.; Grelle, A.
  • Journal of Geophysical Research: Biogeosciences, Vol. 113, Issue G1
  • DOI: 10.1029/2006JG000306

Modelling Holocene peatland dynamics with an individual-based dynamic vegetation model
journal, January 2017

  • Chaudhary, Nitin; Miller, Paul A.; Smith, Benjamin
  • Biogeosciences, Vol. 14, Issue 10
  • DOI: 10.5194/bg-14-2571-2017

The unseen iceberg: plant roots in arctic tundra
journal, September 2014

  • Iversen, Colleen M.; Sloan, Victoria L.; Sullivan, Patrick F.
  • New Phytologist, Vol. 205, Issue 1
  • DOI: 10.1111/nph.13003

A 12-year record reveals pre-growing season temperature and water table level threshold effects on the net carbon dioxide exchange in a boreal fen
journal, May 2014

  • Peichl, Matthias; Öquist, Mats; Ottosson Löfvenius, Mikaell
  • Environmental Research Letters, Vol. 9, Issue 5
  • DOI: 10.1088/1748-9326/9/5/055006

Northern Peatlands: Role in the Carbon Cycle and Probable Responses to Climatic Warming
journal, May 1991

  • Gorham, Eville
  • Ecological Applications, Vol. 1, Issue 2
  • DOI: 10.2307/1941811

Comparing Simulated and Measured Values Using Mean Squared Deviation and its Components
journal, January 2000


Contrasting responses of growing season ecosystem CO 2 exchange to variation in temperature and water table depth in two peatlands in northern Alberta, Canada
journal, January 2011

  • Adkinson, Angela C.; Syed, Kamran H.; Flanagan, Lawrence B.
  • Journal of Geophysical Research, Vol. 116, Issue G1
  • DOI: 10.1029/2010JG001512

A dynamic model of wetland extent and peat accumulation: results for the Holocene
journal, January 2012


Spatial variability of CO 2 uptake in polygonal tundra: assessing low-frequency disturbances in eddy covariance flux estimates
journal, January 2017


Peatlands in the Earth’s 21st century climate system
journal, December 2011

  • Frolking, Steve; Talbot, Julie; Jones, Miriam C.
  • Environmental Reviews, Vol. 19, Issue NA
  • DOI: 10.1139/a11-014

The uncertain climate footprint of wetlands under human pressure
journal, March 2015

  • Petrescu, Ana Maria Roxana; Lohila, Annalea; Tuovinen, Juha-Pekka
  • Proceedings of the National Academy of Sciences, Vol. 112, Issue 15
  • DOI: 10.1073/pnas.1416267112

Predicting carbon dioxide and energy fluxes across global FLUXNET sites with regression algorithms
journal, January 2016

  • Tramontana, Gianluca; Jung, Martin; Schwalm, Christopher R.
  • Biogeosciences, Vol. 13, Issue 14
  • DOI: 10.5194/bg-13-4291-2016

A dynamic global vegetation model for studies of the coupled atmosphere-biosphere system: DVGM FOR COUPLED CLIMATE STUDIES
journal, February 2005

  • Krinner, G.; Viovy, Nicolas; de Noblet-Ducoudré, Nathalie
  • Global Biogeochemical Cycles, Vol. 19, Issue 1
  • DOI: 10.1029/2003GB002199

Parametrization of peatland hydraulic properties for the Canadian land surface scheme
journal, March 2000


Modelling past, present and future peatland carbon accumulation across the pan-Arctic region
journal, January 2017

  • Chaudhary, Nitin; Miller, Paul A.; Smith, Benjamin
  • Biogeosciences, Vol. 14, Issue 18
  • DOI: 10.5194/bg-14-4023-2017

Simulating soil organic carbon in yedoma deposits during the Last Glacial Maximum in a land surface model
journal, May 2016

  • Zhu, D.; Peng, S.; Ciais, P.
  • Geophysical Research Letters, Vol. 43, Issue 10
  • DOI: 10.1002/2016GL068874

The worldwide leaf economics spectrum
journal, April 2004

  • Wright, Ian J.; Reich, Peter B.; Westoby, Mark
  • Nature, Vol. 428, Issue 6985
  • DOI: 10.1038/nature02403

Global and regional importance of the tropical peatland carbon pool: TROPICAL PEATLAND CARBON POOL
journal, January 2011


Camera derived vegetation greenness index as proxy for gross primary production in a low Arctic wetland area
journal, December 2013

  • Westergaard-Nielsen, Andreas; Lund, Magnus; Hansen, Birger Ulf
  • ISPRS Journal of Photogrammetry and Remote Sensing, Vol. 86
  • DOI: 10.1016/j.isprsjprs.2013.09.006

The timing of snow melt controls the annual CO 2 balance in a subarctic fen
journal, January 2004


Soil temperature synchronisation improves representation of diel variability of ecosystem respiration in Sphagnum peatlands
journal, June 2016


Towards a more detailed representation of high-latitude vegetation in the global land surface model ORCHIDEE (ORC-HL-VEGv1.0)
journal, January 2017

  • Druel, Arsène; Peylin, Philippe; Krinner, Gerhard
  • Geoscientific Model Development, Vol. 10, Issue 12
  • DOI: 10.5194/gmd-10-4693-2017

Effects of nutrient addition on leaf chemistry, morphology, and photosynthetic capacity of three bog shrubs
journal, May 2011


Modelling sub-grid wetland in the ORCHIDEE global land surface model: evaluation against river discharges and remotely sensed data
journal, January 2012

  • Ringeval, B.; Decharme, B.; Piao, S. L.
  • Geoscientific Model Development, Vol. 5, Issue 4
  • DOI: 10.5194/gmd-5-941-2012

Low impact of dry conditions on the CO 2 exchange of a Northern-Norwegian blanket bog
journal, February 2015


Photosynthesis and nitrogen relationships in leaves of C3 plants
journal, January 1989


Influence of High Temperature on End-of-Season Tundra CO 2 Exchange
journal, May 2001


Structure of peat soils and implications for water storage, flow and solute transport: A review update for geochemists
journal, July 2016


Carbon dioxide and methane exchange of a north-east Siberian tussock tundra
journal, November 2005


A multi-trait test of the leaf-height-seed plant strategy scheme with 133 species from a pine forest flora
journal, November 2009


Seasonal patterns of carbon dioxide and water fluxes in three representative tundra ecosystems in northern Alaska
journal, January 2012

  • Euskirchen, E. S.; Bret-Harte, M. S.; Scott, G. J.
  • Ecosphere, Vol. 3, Issue 1
  • DOI: 10.1890/ES11-00202.1

Hydraulic properties of fen peat soils in Poland
journal, January 2010


Vegetation, climatic changes and net carbon sequestration in a North-Scandinavian subarctic mire over 30 years
journal, October 2005


Global peatland dynamics since the Last Glacial Maximum: GLOBAL PEATLANDS SINCE THE LGM
journal, July 2010

  • Yu, Zicheng; Loisel, Julie; Brosseau, Daniel P.
  • Geophysical Research Letters, Vol. 37, Issue 13
  • DOI: 10.1029/2010GL043584

High methane emissions dominated annual greenhouse gas balances 30 years after bog rewetting
journal, January 2015


Transient simulations of the carbon and nitrogen dynamics in northern peatlands: from the Last Glacial Maximum to the 21st century
journal, January 2013


Integrating peatlands into the coupled Canadian Land Surface Scheme (CLASS) v3.6 and the Canadian Terrestrial Ecosystem Model (CTEM) v2.0
journal, January 2016

  • Wu, Yuanqiao; Verseghy, Diana L.; Melton, Joe R.
  • Geoscientific Model Development, Vol. 9, Issue 8
  • DOI: 10.5194/gmd-9-2639-2016

Representing northern peatland microtopography and hydrology within the Community Land Model
journal, January 2015


Contrasting carbon dioxide fluxes between a drying shrub wetland in Northern Wisconsin, USA, and nearby forests
journal, January 2009


The relationship of leaf photosynthetic traits - V cmax and J max - to leaf nitrogen, leaf phosphorus, and specific leaf area: a meta-analysis and modeling study
journal, July 2014

  • Walker, Anthony P.; Beckerman, Andrew P.; Gu, Lianhong
  • Ecology and Evolution, Vol. 4, Issue 16
  • DOI: 10.1002/ece3.1173

High net CO 2 and CH 4 release at a eutrophic shallow lake on a formerly drained fen
journal, January 2016

  • Franz, Daniela; Koebsch, Franziska; Larmanou, Eric
  • Biogeosciences, Vol. 13, Issue 10
  • DOI: 10.5194/bg-13-3051-2016

Modeling water table changes in boreal peatlands of Finland under changing climate conditions
journal, October 2012


Measuring and modelling environmental influences on photosynthetic gas exchange in Sphagnum and Pleurozium
journal, June 1998


On the Temperature Dependence of Soil Respiration
journal, June 1994

  • Lloyd, J.; Taylor, J. A.
  • Functional Ecology, Vol. 8, Issue 3
  • DOI: 10.2307/2389824

Near-neutral carbon dioxide balance at a seminatural, temperate bog ecosystem: CO
journal, February 2016

  • Hurkuck, Miriam; Brümmer, Christian; Kutsch, Werner L.
  • Journal of Geophysical Research: Biogeosciences, Vol. 121, Issue 2
  • DOI: 10.1002/2015JG003195

Response of vegetation and net ecosystem carbon dioxide exchange at different peatland microforms following water table drawdown: WATER TABLE AND PEATLAND CO
journal, May 2006

  • Strack, M.; Waddington, J. M.; Rochefort, L.
  • Journal of Geophysical Research: Biogeosciences, Vol. 111, Issue G2
  • DOI: 10.1029/2005JG000145

Differential response of carbon fluxes to climate in three peatland ecosystems that vary in the presence and stability of permafrost: Carbon fluxes and permafrost thaw
journal, August 2014

  • Euskirchen, E. S.; Edgar, C. W.; Turetsky, M. R.
  • Journal of Geophysical Research: Biogeosciences, Vol. 119, Issue 8
  • DOI: 10.1002/2014JG002683

Current and future CO 2 emissions from drained peatlands in Southeast Asia
journal, January 2010


Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes
journal, July 2007


Vegetation and environmental variation in an Atlantic blanket bog in South-western Ireland
journal, October 2008


Assessing the generality of global leaf trait relationships
journal, February 2005


Ecosystem Respiration in a Cool Temperate Bog Depends on Peat Temperature But Not Water Table
journal, September 2005


Growing season extension and its impact on terrestrial carbon cycle in the Northern Hemisphere over the past 2 decades: PHENOLOGY AND CARBON CYCLE IN NH
journal, September 2007

  • Piao, Shilong; Friedlingstein, Pierre; Ciais, Philippe
  • Global Biogeochemical Cycles, Vol. 21, Issue 3
  • DOI: 10.1029/2006GB002888

Methane and carbon dioxide fluxes of a temperate mire in Central Europe
journal, January 2017


Hydrological changes in the Rzecin peatland (Puszcza Notecka, Poland) induced by anthropogenic factors: Implications for mire development and carbon sequestration
journal, September 2016

  • Milecka, Krystyna; Kowalewski, Grzegorz; Fiałkiewicz-Kozieł, Barbara
  • The Holocene, Vol. 27, Issue 5
  • DOI: 10.1177/0959683616670468

A global prognostic scheme of leaf onset using satellite data
journal, October 2000


Two years with extreme and little snowfall: effects on energy partitioning and surface energy exchange in a high-Arctic tundra ecosystem
journal, January 2016

  • Stiegler, Christian; Lund, Magnus; Christensen, Torben Røjle
  • The Cryosphere, Vol. 10, Issue 4
  • DOI: 10.5194/tc-10-1395-2016

Meteorological and functional response partitioning to explain interannual variability of CO2 exchange at an Irish Atlantic blanket bog
journal, August 2014


The Joint UK Land Environment Simulator (JULES), model description – Part 1: Energy and water fluxes
journal, January 2011

  • Best, M. J.; Pryor, M.; Clark, D. B.
  • Geoscientific Model Development, Vol. 4, Issue 3
  • DOI: 10.5194/gmd-4-677-2011

Net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands: CARBON BALANCE OF A SUBARCTIC PEATLAND
journal, February 2012

  • Olefeldt, David; Roulet, Nigel T.; Bergeron, Onil
  • Geophysical Research Letters, Vol. 39, Issue 3
  • DOI: 10.1029/2011GL050355

A multi-level canopy radiative transfer scheme for ORCHIDEE (SVN r2566), based on a domain-averaged structure factor
journal, November 2016

  • McGrath, Matthew J.; Ryder, James; Pinty, Bernard
  • Geoscientific Model Development Discussions
  • DOI: 10.5194/gmd-2016-280

Sensitivity of the West African hydrological cycle in ORCHIDEE to infiltration processes
journal, January 2008

  • d&apos;Orgeval, T.; Polcher, J.; de Rosnay, P.
  • Hydrology and Earth System Sciences, Vol. 12, Issue 6
  • DOI: 10.5194/hess-12-1387-2008

A new model of Holocene peatland net primary production, decomposition, water balance, and peat accumulation
journal, January 2010

  • Frolking, S.; Roulet, N. T.; Tuittila, E.
  • Earth System Dynamics, Vol. 1, Issue 1
  • DOI: 10.5194/esd-1-1-2010

DYPTOP: a cost-efficient TOPMODEL implementation to simulate sub-grid spatio-temporal dynamics of global wetlands and peatlands
journal, January 2014

  • Stocker, B. D.; Spahni, R.; Joos, F.
  • Geoscientific Model Development, Vol. 7, Issue 6
  • DOI: 10.5194/gmd-7-3089-2014

The impact of alternative trait-scaling hypotheses for the maximum photosynthetic carboxylation rate ( V cmax ) on global gross primary production
journal, June 2017

  • Walker, Anthony P.; Quaife, Tristan; van Bodegom, Peter M.
  • New Phytologist, Vol. 215, Issue 4
  • DOI: 10.1111/nph.14623

Effects of drought conditions on the carbon dioxide dynamics in a temperate peatland
journal, November 2012


Estimating carbon accumulation rates of undrained mires in Finland–application to boreal and subarctic regions
journal, January 2002


Long-Term Release of Carbon Dioxide from Arctic Tundra Ecosystems in Alaska
journal, November 2016


Modeling CO2 and CH4 flux changes in pristine peatlands of Finland under changing climate conditions
journal, August 2013


CO 2 fluxes at northern fens and bogs have opposite responses to inter-annual fluctuations in water table : FEN AND BOG CO
journal, October 2010

  • Sulman, Benjamin N.; Desai, Ankur R.; Saliendra, Nicanor Z.
  • Geophysical Research Letters, Vol. 37, Issue 19
  • DOI: 10.1029/2010GL044018

Global patterns of land-atmosphere fluxes of carbon dioxide, latent heat, and sensible heat derived from eddy covariance, satellite, and meteorological observations
journal, January 2011

  • Jung, Martin; Reichstein, Markus; Margolis, Hank A.
  • Journal of Geophysical Research, Vol. 116
  • DOI: 10.1029/2010JG001566

Ecosystem scale methane fluxes in a natural temperate bog-pine forest in southern Germany
journal, November 2014


Soil Thermal Conductivity
journal, January 2000

  • Abu-Hamdeh, Nidal H.; Reeder, Randall C.
  • Soil Science Society of America Journal, Vol. 64, Issue 4
  • DOI: 10.2136/sssaj2000.6441285x

CO 2 exchange of a sedge fen in southern Finland-the impact of a drought period
journal, January 2007


Developing joint probability distributions of soil water retention characteristics
journal, May 1988


Net ecosystem methane and carbon dioxide exchanges in a Lake Erie coastal marsh and a nearby cropland: CH4 and CO2 fluxes in a freshwater marsh
journal, May 2014

  • Chu, Housen; Chen, Jiquan; Gottgens, Johan F.
  • Journal of Geophysical Research: Biogeosciences, Vol. 119, Issue 5
  • DOI: 10.1002/2013JG002520

Influence of summer flood on the net ecosystem exchange of CO2 in a temperate sedge-grass marsh
journal, September 2009


Increasing net primary production in China from 1982 to 1999
journal, August 2003


Annual CO 2 balance of a temperate bog
journal, January 2007


Artificial drainage and associated carbon fluxes (CO2/CH4) in a tundra ecosystem: ARTIFICIAL DRAINAGE IN A TUNDRA ECOSYSTEM
journal, November 2009


Bridging the gap between models and measurements of peat hydraulic conductivity
journal, July 2015

  • Morris, Paul J.; Baird, Andy J.; Belyea, Lisa R.
  • Water Resources Research, Vol. 51, Issue 7
  • DOI: 10.1002/2015WR017264

A new model for predicting the hydraulic conductivity of unsaturated porous media
journal, June 1976


Contemporary carbon accumulation in a boreal oligotrophic minerogenic mire - a significant sink after accounting for all C-fluxes
journal, October 2008


The amount of carbon released from peat and forest fires in Indonesia during 1997
journal, November 2002

  • Page, Susan E.; Siegert, Florian; Rieley, John O.
  • Nature, Vol. 420, Issue 6911
  • DOI: 10.1038/nature01131

Dynamics of C, N, P and S in grassland soils: a model
journal, February 1988

  • Parton, W. J.; Stewart, J. W. B.; Cole, C. V.
  • Biogeochemistry, Vol. 5, Issue 1
  • DOI: 10.1007/BF02180320

On the separation of net ecosystem exchange into assimilation and ecosystem respiration: review and improved algorithm
journal, September 2005


Spatial variation in plant community functions regulates carbon gas dynamics in a boreal fen ecosystem
journal, January 2007


Current disturbance and the diminishing peatland carbon sink
journal, January 2002


A Closed-form Equation for Predicting the Hydraulic Conductivity of Unsaturated Soils1
journal, January 1980