COS 21 - Biogeochemistry: C and N Cycling in Response to Global Change II

Tuesday, August 9, 2011: 8:00 AM-11:30 AM
6A, Austin Convention Center
8:00 AM
Bacterially mediated carbon and nutrient dynamics in a highly impacted river system
Kelly J. Rodibaugh, Texas State University; Weston H. Nowlin, Texas State University; Jesse C. Becker, Texas State University
8:20 AM
Harvester ant responses to atmospheric nitrogen deposition in southern California deserts
Benjamin D. Wissinger, University of Idaho; Michael D. Bell, University of California, Irvine; Beth A. Newingham, University of Idaho
8:40 AM
Regionally-differentiated estimates of cropland N2O emissions reduce uncertainty in global calculations
Aaron B. Berdanier, Duke University; Richard T. Conant, Queensland University of Technology
9:00 AM
Effects of mountain pine beetle oubreak on biogeochemical cycling in whitebark pine ecosystems
Megan P. Keville, University of Montana; Cory C. Cleveland, University of Montana; Jay A. Aylward, University of Massachusetts
9:20 AM
Mechanisms and pathways of N accumulation in the terrestrial biosphere and consequences for its CO2 response
Stefan Gerber, University of Florida IFAS; Lars O. Hedin, Princeton University; Sonja G. Keel, University of Bern; Elena Shevliakova, Princeton University
9:40 AM
9:50 AM
Impacts of an African Green Revolution on greenhouse gases and pollution precursors: Nonlinear trace nitrogen gas emission responses to incremental increases in fertilizer inputs in a western Kenyan maize field
Jonathan Hickman, The Earth Institute at Columbia University; Cheryl Palm, Agriculture and Food Security Center, The Earth Institute, Columbia University
10:10 AM
The impact of N fertilizer management on nitrous oxide and methane fluxes in switchgrass
Leilei Ruan, Michigan State University; G. Philip Robertson, Michigan State University
10:30 AM
Composition of C3 and C4 species regulates ecosystem response to climate warming
Shuli Niu, University of Oklahoma; Rebecca A. Sherry, University of Oklahoma; Xuhui Zhou, Fudan University; Yiqi Luo, University of Oklahoma
10:50 AM
Stand development patterns at the Duke free air CO2 enrichment site
Heather R. McCarthy, University of Oklahoma; Ram Oren, Duke University
11:10 AM
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