B016
Aligning Soil Organic Matter Mechanisms, Measurements, and Models Across Scales: Honoring the Complexity of Soil Processes

Session ID#: 76729

Session Description:
This session focuses on the integration of soil organic matter (SOM) (de)stabilization concepts and empirical measurements with models across spatial scales.  Technological advances, combined with a recent paradigm shift, transformed the way we study and conceptualize soil organic matter. However, quantifying and parameterizing the various physical, chemical, and biological mechanisms regulating SOM bioavailability and turnover remains challenging, especially because these mechanisms operate across a wide range of spatial scales.

Experiments and modeling efforts utilizing newly applied technologies or methodologies to elucidate unifying processes and mechanisms of SOM (de)stabilization such as aggregate turnover, organo-mineral sorption, and organo-metal formation are of particular interest.

Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]
0463 Microbe/mineral interactions [BIOGEOSCIENCES]
0486 Soils/pedology [BIOGEOSCIENCES]

Primary Convener:  Katherine A Heckman, USDA Forest Service, Vallejo, CA, United States
Conveners:  Corey R Lawrence, US Geological Survey, Geosciences and Environmental Change Science Center, Denver, CO, United States, Susan E Crow, University of Hawaii Manoa, Honolulu, HI, United States and Joseph C Blankinship, University of California Santa Barbara, Santa Barbara, CA, United States
Primary Liaison:  Katherine A Heckman, USDA Forest Service, Vallejo, CA, United States
 
Analytical Techniques for Soil Organic Carbon Characterization: Review of Advantages, Limitations and Optimal Combinations (490606)
Adnan Mustafa, Graduate School of Chinese Academy of Agricultural Sciences Beijing, Beijing City, China, Qudsia Saeed, College of Natural Resources and Environment, Northwest Agriculture and Forestry University, Yangling- 712100, P. R. China, Yangling, China, Muhammad Nadeem Ashraf, National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing-100081, P. R. China, Beijing, China, Andrew S. Gregory, Department of Sustainable Agriculture Sciences, Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom, Hertfordshire, United Kingdom, Muhammad Muhammad Naveed3, Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad-38040, Pakistan, Faiasalabad, Pakistan, Jian Wang, Canadian Light Source Inc., University of Saskatchewan, Saskatchewan, SK S7N2V3, Canada, Saskatchewan, Canada and Minggang Xu, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
 
Investigating the influence of Ca on soil organic carbon dynamics in a Swiss subalpine grassland with a natural variation in CaCO3 concentration. (492104)
Mike C. Rowley1, Stephanie Grand2, Jorge Spangenberg3 and Eric P Verrecchia2, (1)University of Lausanne, IDYST, Lausanne, Switzerland, (2)University of Lausanne, Faculty of Geosciences and Environment, Lausanne, Switzerland, (3)Institute of Earth Surface Dynamics, University of Lausanne, Switzerland, Lausanne, Switzerland
 
Responses of the Quality and Quantity of Soil Organic Matter to Nitrogen Deposition in a Subtropical Forest (494216)
Jing Geng, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; Department of Environmental Sciences, Policy and Management, University of California, Berkeley, Berkeley, United States, Huajun Fang, IGSNRR Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, China and Shulan Cheng, University of Chinese Academy of Sciences, Beijing, China
 
Size affects the processing of polymer and monomer soil organic matter: An explanation of coupled temperature and moisture sensitivity of decomposition kinetics (495683)
Jinyun Tang and William J Riley, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
 
Organic Matter Input Type Determines Structural Arrangement of Organic and Mineral Materials in Artificial Soil Aggregates (511377)
Ingrid Kogel-Knabner1, Franziska B. Bucka2, Angelika Koelbl3, Daniel Uteau4 and Stephan Peth4, (1)Technical University of Munich, Munich, Germany, (2)Technical University of Munich, Soil Science, Freising, Germany, (3)Technische Universität München, Freising, Germany, (4)University of Kassel, Soil Science, Witzenhausen, Germany
 
Assessing how soil temperature and moisture presentation affects soil organic carbon model parameterization (516100)
Toni Viskari, Liisa Kulmala, Jari Liski and Janne Pusa, Finnish Meteorological Institute, Helsinki, Finland
 
Elucidating the fate of mineral-organic associations in transient microenvironments at the root-soil interface (519071)
Mariela Garcia Arredondo1, Zoe G Cardon2, Morris E Jones1, Yilin Fang3, Steven Yabusaki3, Marco Keiluweit1 and Marco Keiluweit, (1)University of Massachusetts Amherst, Amherst, MA, United States, (2)Marine Biological Laboratory, Ecosystems Center, Woods Hole, MA, United States, (3)Pacific Northwest National Laboratory, Richland, WA, United States
 
Partitioning sources of CO2 emission after soil wet up using high-resolution observations and a simple model (527466)
Eric Slessarev, Lawrence Livermore National Laboratory, Livermore, CA, United States and Joshua Schimel, University of California Santa Barbara, Santa Barbara, CA, United States
 
Linking Soil Moisture and Carbon Dioxide Fluxes: Exploration of Metabolic Processes and Driving Factors (539881)
Linden Fairbairn1, Fereidoun Rezanezhad1, Chris Thomas Parsons1, Mehdi G. Gharasoo1, Merrin L Macrae2 and Philippe Van Cappellen1, (1)University of Waterloo, Department of Earth and Environmental Sciences, Waterloo, ON, Canada, (2)University of Waterloo, Department of Geography and Environmental Management, Waterloo, ON, Canada
 
Investigating In-Depth Fractionations of Soil Radiocarbon: Insights and Applications from Thermal Analysis (543608)
Shane Stoner1, Marion Schrumpf2, Carlos A Sierra3 and Susan Trumbore2, (1)Max Planck Institute for Biogeochemistry, Jena, Germany, (2)Department of Biogeochemical Processes, Max Planck Institute for Biogeochemistry, Jena, Germany, (3)Max Planck Institute for Biogeochemistry, Theoretical Ecosystem Ecology, Jena, Germany
 
Quantifying soil carbon protection by anoxic microsites in soils (548159)
Emily M Lacroix1, Robert Rossi1, Janica M Mendillo2, Cole M Shepherd2 and Scott E Fendorf1, (1)Stanford University, Department of Earth System Science, Stanford, CA, United States, (2)Stanford University, Stanford, United States
 
Using a new soil biogeochemical model to understand processes controlling SOC dynamics: an application to the LBNL TES SFA Warming Experiment (554233)
Zhou Lyu1, William J Riley1, Jinyun Tang2, Rose Z Abramoff1, Jennifer Soong3, Cristina Castanha1 and Margaret S Torn4, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)Lawrence Berkeley Natl Lab, Berkeley, CA, United States, (3)Lawrence Berkeley National Laboratory, Climate and Ecosystem Science, Berkeley, CA, United States, (4)Berkeley Lab/UC Berkeley, Berkeley, CA, United States
 
Elucidating the Shifting Controls on Organic Carbon Stabilization Across a Soil Moisture Gradient (566672)
Itamar Shabtai, Ithaca, New York, United States, Srabani Das, Cornell University, Biological and Environmental Engineering, Ithaca, NY, United States, Thiago Inagaki, Technical University of Munich, Freising, Germany, Ingrid Kogel-Knabner, Lehrstuhl für Bodenkunde, Technische Universität München, Freising, Germany and Johannes Lehmann, Cornell University, Soil and Crop Sciences, Ithaca, NY, United States
 
Decadal cycling of mineral-associated soil carbon (587882)
Jeffrey Beem-Miller1, Craig Rasmussen2, Marion Schrumpf3, Georg Guggenberger4 and Susan Trumbore3, (1)Max Planck Institute for Biogeochemistry, Jena, Germany, (2)University of Arizona, Department of Soil, Water and Environmental Science, Tucson, AZ, United States, (3)Department of Biogeochemical Processes, Max Planck Institute for Biogeochemistry, Jena, Germany, (4)Leibniz Universität Hannover, Hannover, Germany
 
Coupled dynamics of carbon geochemistry and microbial communities in grassland soils (596677)
Qian Zhao1, Kirsten S Hofmockel1, Allison Thompson1, Stephen Callister1, Malak M Tfaily1,2, William C Nelson3 and Sarah E Hobbie4, (1)Pacific Northwest National Laboratory, Richland, WA, United States, (2)University of Arizona, Tucson, AZ, United States, (3)Pacific Northwest National Laboratory, Biological Sciences, Richland, WA, United States, (4)University of Minnesota Twin Cities, Dept. of Ecology, Evolution and Behavior, Saint Paul, MN, United States
 
Abiotic reduction-complexation reactions of iron with natural organic matter at circumneutral pH (598315)
Amrita Bhattacharyya, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, Christian Dewey, Stanford University, Department of Earth System Science, Stanford, CA, United States, Jennifer Pett-Ridge, Lawrence Livermore National Laboratory, Livermore, CA, United States and Peter S Nico, Lawrence Berkeley National Lab, Berkeley, CA, United States
 
Investigating the role of organo-mineral and organo-metal stabilization of soil organic matter using diverse organic matter sources and model soil B horizons (601873)
Maggie Mae Bowman, University of Colorado, Boulder, CO, United States, Nancy J Hess, Pacific Northwest National Laboratory, Richland, WA, United States, Michael SanClements, National Ecological Observatory Network Program, Battelle, Boulder, CO, United States and Diane M McKnight, University of Colorado at Boulder, INSTAAR, Boulder, CO, United States
 
Evaluating molecular associations of key organic compounds with clay size minerals. (609298)
Odeta Qafoku1, Amity Andersen1, Mark E Bowden2, Ravi K Kukkadapu3, Alice Dohnalkova4, Daniel E. Perea4 and Mark Engelhard5, (1)Pacific Northwest National Laboratory, Richland, WA, United States, (2)Pacific Northwest National Laboratory, William R. Wiley Environmental and Molecular Sciences Laboratory, Richland, WA, United States, (3)Pacific Northwest National Lab, Richland, WA, United States, (4)Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States, (5)Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, United States
 
Organic Matter Occlusion of Mineral Surfaces as a Function of Mineral Weathering in Volcanic Ash Soils (616738)
Cole Stenberg, University of Minnesota - Twin Cities, Soil, Water, and Climate, Saint Paul, MN, United States, Nathaniel Thomas Looker, University of Minnesota - Twin Cities, Soil, Water, and Climate, St. Paul, MN, United States, Edward A Nater, University of Minnesota - Twin Cities, Soil, Water, and Climate, St Paul, MN, United States and Randy Kolka, USDA Forest Service Northern Research Station, Grand Rapids, MN, United States
 
The age of global soil carbon and implications for sequestration potential (616978)
Zheng Shi1, Steven D Allison1, James Tremper Randerson2, Yujie He3, Paul Alexander Levine4, Alison Hoyt5 and Susan Trumbore6, (1)University of California Irvine, Ecology & Evolutionary Biology, Irvine, CA, United States, (2)University of California Irvine, Department of Earth System Science, Irvine, CA, United States, (3)University of California Irvine, Earth System Science, Irvine, CA, United States, (4)University California Irvine, Department of Earth System Science, Irvine, CA, United States, (5)Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, Cambridge, CA, United States, (6)Department of Biogeochemical Processes, Max Planck Institute for Biogeochemistry, Jena, Germany
 
Do Higher-Quality Plant Tissue Inputs Promote Organic Matter Accumulation More Efficiently than Lower-Quality Inputs? Insights from a Dual-Isotope Pulse-Chase Experiment in Subtropical Pasture. (620306)
Chris Wilson1, Michael Strickland2, Jose Dubeux3, Lynn Sollenberger1, Gabriel Maltais-Landry4, Stefan Gerber5 and Stacy Smith6, (1)University of Florida, Agronomy Department, Gainesville, FL, United States, (2)University of Idaho, Moscow, ID, United States, (3)University of Florida, North Florida Research and Education Center, Marianna, United States, (4)University of Florida, Soil and Water Sciences, Gainesville, FL, United States, (5)University of Florida IFAS, Gainesville, FL, United States, (6)University of Florida, Agronomy, Gainesville, FL, United States
 
Assessing the affinity and selectivity of DOM towards metal ions across redox environments (621121)
Christian Dewey1, Rene M. Boiteau2, Marco Keiluweit3, John Bargar4 and Scott E Fendorf1, (1)Stanford University, Department of Earth System Science, Stanford, CA, United States, (2)Pacific Northwest National Laboratory, Richland, WA, United States, (3)University of Massachusetts Amherst, Amherst, MA, United States, (4)SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, Menlo Park, CA, United States
 
The factors regulating soil respiration in response to wetting events: A three-parameter model analysis of existing incubation studies (625040)
Yuchen Liu, University of Illinois at Urbana Champaign, Urbana, IL, United States, Matthew Winnick, University of Massachusetts Amherst, Amherst, MA, United States, Corey R Lawrence, US Geological Survey, Geosciences and Environmental Change Science Center, Denver, CO, United States, Katharine Maher, Stanford-Geology & Env Science, Stanford, CA, United States and Jennifer L Druhan, University of Illinois at Urbana Champaign, Department of Geology, Urbana, IL, United States
 
Spatial differences and temporal change in organic matter composition across artificial hillslope during incipient soil formation (628204)
Katerina Dontsova, University of Arizona, Environmental Science Department, Biosphere 2, Tucson, AZ, United States, Malak M Tfaily, University of Arizona, Tucson, AZ, United States, Edward Hunt, University of Arizona, Biosphere 2, Tucson, AZ, United States, Rosalie Kae Chu, Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States, Jason Toyoda, Pacific Northwest National Laboratory, EMSL, Richland, WA, United States, Jon Chorover, University of Arizona, Environmental Science, Tucson, AZ, United States and Peter A A Troch, University of Arizona, Hydrology and Atmospheric Sciences, Tucson, AZ, United States
 
(De)sorption of soil organic matter by mineral soils with varying iron oxide concentrations (630302)
Lixia Jin, University of California Merced, Merced, CA, United States and Asmeret Asefaw Berhe, UC Merced, Merced, CA, United States
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