B23I:
Soil Organic Matter Dynamics: Processes of Stabilization and Decomposition IV

Tuesday, 16 December 2014: 1:40 PM-3:40 PM
Chairs:  Katherine A Heckman, USDA Forest Service, Northern Institute of Applied Climate Science, Vallejo, CA, United States and Corey R Lawrence, US Geological Survey, Menlo Park, CA, United States
Primary Conveners:  Kate Lajtha, Oregon State University, Corvallis, OR, United States
Co-conveners:  Marc G Kramer, University of Florida, Soil and Water Science Department, Ft Walton Beach, FL, United States, Jennifer Y King, University of California Santa Barbara, Santa Barbara, CA, United States and Katherine A Heckman, USDA Forest Service, Northern Institute of Applied Climate Science, Vallejo, CA, United States
OSPA Liaisons:  Nancy Cavallaro, USDA/NIFA, Washington, DC, United States

Abstracts Submitted to this Session:

1:40 PM
B23I-01
 
Interactions Between Mineral Surfaces, Substrates, Enzymes, and Microbes Result in Hysteretic Temperature Sensitivities and Microbial Carbon Use Efficiencies and Weaker Predicted Carbon-Climate Feedbacks
William J Riley, Lawrence Berkeley National Laboratory, Berkeley, CA, United States and Jinyun Tang, Lawrence Berkeley National Lab, Berkeley, CA, United States
1:55 PM
B23I-02
 
Elucidating the Physical and Chemical Structural Changes of Proteins on Clay Mineral Surfaces using Large-scale Molecular Dynamics Simulations in Tandem with NMR Spectroscopy
Amity Andersen1, Niranjan Govind1, Nancy Washton1, Patrick Reardon1, Stephany Soledad Chacon2, Sarah Burton1, Andrew Lipton1, Markus Kleber3 and Nikolla P Qafoku4, (1)Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States, (2)Oregon State University, Crop and Soil Science, Corvallis, OR, United States, (3)Oregon State University, Corvallis, OR, United States, (4)Pacific Northwest Natl Lab, Richland, WA, United States
2:10 PM
B23I-03
 
Response of Microbial Soil Carbon Mineralization Rates to Oxygen Limitations
Marco Keiluweit1, Amanda Denney1, Peter S Nico2 and Scott E Fendorf1, (1)Stanford University, Stanford, CA, United States, (2)Lawrence Berkeley Laboratory, Berkeley, CA, United States
2:25 PM
B23I-04
 
Linking Intra-Aggregate Pore Size Distribution with Organic Matter Decomposition Status, Evidence from FTIR and X-Ray Tomography
Ehsan R Toosi, Michelle Quigley and Alexandra N Kravchenko, Michigan State University, Department of Plant, Soil and Microbial Sciences, East Lansing, MI, United States
2:40 PM
B23I-05
 
Association of soil organic matter with metal phases examined by selective dissolution approach: limitations and advantages
Rota Wagai, NIAES National Institute for Agro-Environmental Sciences, Tsukuba, Japan and Lawrence M Mayer, Univ Maine, Walpole, ME, United States
2:55 PM
B23I-06
 
Contemporary Subsoil Carbon Accumulation During Reforestation is Conditioned by Long-term, Coupled C-Fe Cycling in Upland Soils
Allan R Bacon, University of Florida, School of Forest Resources and Conservation, Gainesville, FL, United States, Daniel Richter Jr, Duke University, Nicholas School of the Environment, Durham, NC, United States, Katherine A Heckman, USDA Forest Service, Northern Institute of Applied Climate Science, Vallejo, CA, United States, Timothy Joseph Veverica, USDA Forest Service, Northern Institute of Applied Climate Science, Houghton, MI, United States and Lucas E Nave, USDA Forest Service, Northern Institute of Applied Climate Science, Pellston, MI, United States
3:10 PM
B23I-07
 
Fe-C interactions and soil organic matter stability in two tropical soils of contrasting parent materials
Elizabeth Coward, University of Pennsylvania, Philadelphia, PA, United States, Aaron Thompson, University of Georgia, Crop and Soil Science, Athens, GA, United States and Alain F Plante, University of Pennsylvania, Earth & Environmental Science, Philadelphia, PA, United States
3:25 PM
B23I-08
 
Linking Pyrogenic Organic Matter Reactivity in Soil to its Charring Temperature and Wood Source
Timothy R Filley1, Christy Dominique Gibson1, Pierre-Joseph Hatton2, Keyvan Dastmalchi3, Subhasish Chatterjee3, Knute J Nadelhoffer4, Ruth E Stark3 and Jeff Bird2, (1)Purdue University, Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States, (2)CUNY Queens College, New York, NY, United States, (3)City University of New York, Department of Chemistry, New York, NY, United States, (4)Univ of Mich- Eco & Evol Bio, Ann Arbor, MI, United States
 
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