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352 Soil Carbon and Nitrogen: Microbial Transformations and Fluxes

Oral Session

Session covers microbial transfomations of carbon and nitrogen in soil, including carbon sequestration, residue decompostion, nitrification, denitrification, and N fixation.

S03 Soil Biology & Biochemistry
Wednesday, October 19, 2011: 8:25 AM-11:30 AM
Henry Gonzalez Convention Center, Room 006A, River Level
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Organizer:
Thomas Moorman
Presiders:
Zachary Aanderud and Michael J. Castellano
8:25 AM
Introductory Remarks
8:30 AM
352-1
Soil Denitrification Potential and Gene Diversity of Nirk, Nirs and Nosz Across Field Scale Comparisons of Low Input Sustainable and Business-As-Usual Agricultural Systems.
Jude Maul, USDA-ARS; Sarah Emche, USDA-ARS; Natalee Gautam, USDA-ARS; Michel Cavigelli, USDA-ARS
8:45 AM
352-2
Enriched 15 N-N 2 O Tracing Reveals the Importance of Soil Moisture and Bulk Density for N 2 O Reduction.
Roland Klefoth, Wageningen University & Research Centre; Tim Clough, Lincoln University; Oene Oenema, Wageningen University & Research Centre; Jan Willem van Groenigen, Wageningen University & Research Centre
Recorded Presentation Audio File
9:00 AM
352-3
Synthesis and Interpretation of N2Ο Fluxes, and Regional Modeling Using DNDC.
Miguel Arango, Kansas State University; Charles Rice, Kansas State University; Chansheng Li, University of New Hampshire; William Salas, Applied GeoSolutions LLC
Recorded Presentation Audio File
9:15 AM
352-4
Are Earthworms Good or Bad for the Soil Greenhouse Gas Balance?.
Ingrid Lubbers, Wageningen University & Research Centre; Steve J. Fonte, CIAT; Lijbert Brussaard, Wageningen University & Research Centre; Jan Willem van Groenigen, Wageningen University & Research Centre
9:30 AM
352-5
Predicting Soil Carbon Dynamics, Net Ecosystem Exchange, and Nitrous Oxide Emissions with the EPIC Model.
Roberto C. Izaurralde, Battelle Pacific NW Lab.; William McGill, University of Northern British Columbia; Jimmy R. williams, Texas A&M University; David Manowitz, Battelle Pacific NW Lab.; Dagmar E. Schwab, University of Natural Resources and Applied Life Sciences; Xuesong Zhang, Battelle Pacific NW Lab.
9:45 AM
Break
10:00 AM
352-6
Incorporating Carbon Saturation Concepts and Nitrogen Retention Theory.
Michael Castellano, Iowa State University; Jason Kaye, Pennsylvania State University; Henry Lin, The Pennsylvania State University; John Schmidt, USDA-ARS-PSWMRU
10:15 AM
352-7
Cancelled
10:30 AM
352-8
Factors Affecting the N Uptake Pathway of Soil Microorganisms.
Daniel Geisseler, University of Kassel; Rainer Georg Joergensen, University of Kassel; Bernard Ludwig, University of Kassel
Recorded Presentation Audio File
10:45 AM
352-9
Soil Organic Matter Dynamics and Microbial Distribution Under Elevated CO2 and Drought.
Engil Pereira, University of California, Davis; Haegeun Chung, Division of Environmental Science and Ecological Engineering, Korea University; Kate Scow, University of California-Davis; Johan Six, University of California, Davis
Recorded Presentation Audio File
11:00 AM
352-10
Interactive Effects of Residue Quality and Mineral N On Microbially-Mediated Soil Aggregation Dynamics.
Cédric Le Guillou, Agrocampus Ouest / INRA; Denis Angers, Agriculture and Agri-Food Canada; Pierre-Alain Maron, INRA; Philippe Leterme, Agrocampus Ouest / INRA; Safya Menasseri-Aubry, Agrocampus Ouest / INRA
Recorded Presentation Audio File
11:15 AM
352-11
Root Exudates Stimulate Rhizosphere Microbial Activity and Promote N Feedbacks for Exotic Grass Invasion.
Zachary Aanderud, Brigham Young University; Suzanne Dunken, United States Department of Agriculture; Jeremy J. James, United States Department of Agriculture
11:30 AM
Adjourn
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