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Title: Networking our science to characterize the state, vulnerabilities, and management opportunities of soil organic matter

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3];  [4]; ORCiD logo [5];  [6];  [7];  [8];  [9];  [10];  [11]; ORCiD logo [12]; ORCiD logo [13]; ORCiD logo [14];  [15];  [10];  [16];  [17];  [12];  [15] more »;  [18];  [19] « less
  1. Department of Earth System Science, Stanford University, Stanford CA USA, U.S. Geological Survey, Menlo Park CA USA
  2. Department of Earth System Science, Stanford University, Stanford CA USA, Department of Physical Geography and Bolin Centre for Climate Research, Stockholm University, Stockholm Sweden
  3. Department of Earth System Science, Stanford University, Stanford CA USA, Department of Physical Geography and Ecosystem Science, Lund Sweden
  4. Department of Soil, Water, and Environmental Science, University of Arizona, Tucson AZ USA
  5. Pacific Northwest National Laboratory, Joint Global Change Research Institute, University of Maryland, College Park, College Park MD USA
  6. U.S. Geological Survey, Denver CO USA
  7. Department of Geography, Texas A&M University, College Station TX USA
  8. Climate Change Science Institute and Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge TN USA
  9. Department of Earth System Science, Stanford University, Stanford CA USA, Woods Institute for the Environment and Precourt Institute for Energy, Stanford University, Stanford CA USA
  10. Natural Resource Ecology Laboratory and Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins CO USA
  11. USDA-ARS Forage Seed and Cereal Research Unit, Corvallis OR USA
  12. Department of Natural Resources and Environmental Management, University of Hawai'i at Mānoa, Honolulu HI USA
  13. Pacific Northwest National Laboratory, Richland WA USA
  14. Department of Plant and Soil Sciences, University of Delaware, Newark DE USA
  15. Department of Environmental Science Policy and Management, University of California Berkeley, Berkeley CA USA
  16. School of Earth and Sustainability, Stockbridge School of Agriculture, University of Massachusetts, Amherst MA USA
  17. USDA Forest Service, Northern Research Station, Houghton MI USA
  18. Food and Environment Program, Union of Concerned Scientists, DC USA
  19. Biological Station and Department of Ecology and Evolutionary Biology, University of Michigan, Pellston MI USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1398128
Alternate Identifier(s):
OSTI ID: 1398129
Resource Type:
Journal Article: Published Article
Journal Name:
Global Change Biology
Additional Journal Information:
Journal Volume: 24; Journal Issue: 2; Related Information: CHORUS Timestamp: 2018-02-01 00:19:44; Journal ID: ISSN 1354-1013
Publisher:
Wiley-Blackwell
Country of Publication:
United Kingdom
Language:
English

Citation Formats

Harden, Jennifer W., Hugelius, Gustaf, Ahlström, Anders, Blankinship, Joseph C., Bond-Lamberty, Ben, Lawrence, Corey R., Loisel, Julie, Malhotra, Avni, Jackson, Robert B., Ogle, Stephen, Phillips, Claire, Ryals, Rebecca, Todd-Brown, Katherine, Vargas, Rodrigo, Vergara, Sintana E., Cotrufo, M. Francesca, Keiluweit, Marco, Heckman, Katherine A., Crow, Susan E., Silver, Whendee L., DeLonge, Marcia, and Nave, Lucas E.. Networking our science to characterize the state, vulnerabilities, and management opportunities of soil organic matter. United Kingdom: N. p., 2017. Web. doi:10.1111/gcb.13896.
Harden, Jennifer W., Hugelius, Gustaf, Ahlström, Anders, Blankinship, Joseph C., Bond-Lamberty, Ben, Lawrence, Corey R., Loisel, Julie, Malhotra, Avni, Jackson, Robert B., Ogle, Stephen, Phillips, Claire, Ryals, Rebecca, Todd-Brown, Katherine, Vargas, Rodrigo, Vergara, Sintana E., Cotrufo, M. Francesca, Keiluweit, Marco, Heckman, Katherine A., Crow, Susan E., Silver, Whendee L., DeLonge, Marcia, & Nave, Lucas E.. Networking our science to characterize the state, vulnerabilities, and management opportunities of soil organic matter. United Kingdom. doi:10.1111/gcb.13896.
Harden, Jennifer W., Hugelius, Gustaf, Ahlström, Anders, Blankinship, Joseph C., Bond-Lamberty, Ben, Lawrence, Corey R., Loisel, Julie, Malhotra, Avni, Jackson, Robert B., Ogle, Stephen, Phillips, Claire, Ryals, Rebecca, Todd-Brown, Katherine, Vargas, Rodrigo, Vergara, Sintana E., Cotrufo, M. Francesca, Keiluweit, Marco, Heckman, Katherine A., Crow, Susan E., Silver, Whendee L., DeLonge, Marcia, and Nave, Lucas E.. Thu . "Networking our science to characterize the state, vulnerabilities, and management opportunities of soil organic matter". United Kingdom. doi:10.1111/gcb.13896.
@article{osti_1398128,
title = {Networking our science to characterize the state, vulnerabilities, and management opportunities of soil organic matter},
author = {Harden, Jennifer W. and Hugelius, Gustaf and Ahlström, Anders and Blankinship, Joseph C. and Bond-Lamberty, Ben and Lawrence, Corey R. and Loisel, Julie and Malhotra, Avni and Jackson, Robert B. and Ogle, Stephen and Phillips, Claire and Ryals, Rebecca and Todd-Brown, Katherine and Vargas, Rodrigo and Vergara, Sintana E. and Cotrufo, M. Francesca and Keiluweit, Marco and Heckman, Katherine A. and Crow, Susan E. and Silver, Whendee L. and DeLonge, Marcia and Nave, Lucas E.},
abstractNote = {},
doi = {10.1111/gcb.13896},
journal = {Global Change Biology},
number = 2,
volume = 24,
place = {United Kingdom},
year = {Thu Oct 05 00:00:00 EDT 2017},
month = {Thu Oct 05 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1111/gcb.13896

Citation Metrics:
Cited by: 1work
Citation information provided by
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  • Here, soil organic matter supports the Earth’s ability to sustain terrestrial ecosystems, provide food and fiber, and retain the largest pool of actively cycling carbon (C). Over 75% of the soil organic carbon (SOC) in the top meter of soil is directly affected by human land use. Large land areas have lost SOC as a result of land use practices, yet there are compensatory opportunities to enhance land productivity and SOC storage in degraded lands through improved management practices. Large areas with and without intentional management are also being subjected to rapid changes in climate, making many SOC stocks vulnerablemore » to losses by decomposition or disturbance. In order to quantify potential SOC losses or sequestration at field, regional, and global scales, measurements for detecting changes in SOC are needed. Such measurements and soil-management best practices should be based on well-established and emerging scientific understanding of processes of C stabilization and destabilization over various timescales, soil types, and spatial scales. As newly engaged members of the International Soil Carbon Network, we have identified gaps in data, modeling, and communication that underscore the need for an open, shared network to frame and guide the study of soil organic matter and C and their management for sustained production and climate regulation.« less
  • Cited by 1
  • Chemical oxidations are routinely employed in soil science to study soil organic matter (SOM), and their interpretation could be improved by characterizing oxidation effects on SOM composition with spectroscopy. We investigated the effects of routinely employed oxidants on SOM composition in a Mollic Xerofluvent representative of intensively managed agricultural soils in the California Central Valley. Soil samples were subjected to oxidation by potassium permanganate (KMnO4), sodium hypochlorite (NaOCl), and hydrogen peroxide (H2O2). Additionally, non-oxidized and oxidized soils were treated with hydrofluoric acid (HF) to evaluate reduction of the mineral component to improve spectroscopy of oxidation effects. Oxidized non-HF and HF-treatedmore » soils were characterized by diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), 13C cross polarization magic angle spinning (CP-MAS) nuclear magnetic resonance (NMR) spectroscopy, and pyrolysis molecular beam mass spectrometry (py-MBMS), and for particle size distribution (PSD) using laser diffractometry (LD). Across the range of soil organic carbon (OC) removed by oxidations (14-72%), aliphatic C-H stretch at 3000-2800 cm-1 (DRIFTS) decreased with OC removal, and this trend was enhanced by HF treatment due to significant demineralization in this soil (70%). Analysis by NMR spectroscopy was feasible only after HF treatment, and did not reveal trends between OC removal and C functional groups. Pyrolysis-MBMS did not detect differences among oxidations, even after HF treatment of soils. Hydrofluoric acid entailed OC loss (13-39%), and for H2O2 oxidized soils increased C:N and substantially decreased mean particle size. This study demonstrates the feasibility of using HF to improve characterizations of SOM composition following oxidations as practiced in soil science, in particular for DRIFTS. Since OC removal by oxidants, mineral removal by HF, and the interaction of oxidants and HF observed for this soil may differ for soils with different mineralogies, future work should examine additional soil and land use types to optimize characterizations of oxidation effects on SOM composition.« less
  • Today's questions concerning the role of soil organic matter (SOM) in soil fertility, ecosystem functioning and global change can only be addressed through knowledge of the controls on SOM stabilization and their interactions. Pyrolysis molecular beam mass spectrometry (py-MBMS) provides a powerful and rapid means of assessing the biochemical composition of SOM. However, characterization of SOM composition alone is insufficient to predict its dynamic behavior. Chemical fractionation is frequently used to isolate more homogeneous SOM components, but the composition of fractions is frequently unknown. We characterized biochemical SOM composition in two previously studied soils from the USA, under contrasting landmore » uses: cultivated agriculture and native vegetation. Bulk soils, as well as chemically isolated SOM fractions (humic acid, humin and non-acid hydrolysable), were analyzed using py-MBMS. Principal components analysis (PCA) showed distinct differences in the SOM composition of isolated fractions. Py-MBMS spectra and PCA loadings were dominated by low molecular weight fragments associated with peptides and other N-containing compounds. The py-MBMS spectra were similar for native whole-soil samples under different vegetation, while cultivation increased heterogeneity. An approach based on previously published data on marker signals also suggests the importance of peptides in distinguishing samples. While the approach described here represents significant progress in the characterization of changing SOM composition, a truly quantitative analysis will only be achieved using multiple internal standards and by correcting for inorganic interference during py-MBMS analysis. Overall, we have provided proof of principle that py-MBMS can be a powerful tool to understand the controls on SOM dynamics, and further method development is underway.« less