COS 100 Biogeochemistry: C and N Cycling in Response to Global Change II

Thursday, August 6, 2009: 1:30 PM-5:00 PM
Ruidoso, Albuquerque Convention Center
Presider:
Minda R. Berbeco
1:30 PM
1
Microbial community response to permafrost thaw in Alaskan soils: Implications for C cycling
Mark P. Waldrop, United States Geological Survey; Kimberley P. Wickland, United States Geological Survey; Asmeret A. Berhe, University of California, Merced; Jennifer W. Harden, United States Geological Survey; Kristen M. DeAngelis, University of California, Berkeley
1:50 PM
2
Microbial seasonal succession and soil biogeochemistry during spring thaw in arctic tundra: What is the impact of deepened snow?
Kate M. Buckeridge, Queen's University; Paul Grogan, Queen's University; Steven D. Siciliano, University of Saskatchewan
2:10 PM
3
The effect of soil warming on decomposition of woody debris in New England temperate forests
Minda R. Berbeco, Tufts University; Colin M. Orians, Tufts University; Jerry M. Melillo, Marine Biological Laboratory
2:30 PM
4
Partitioning of soil respiration at the PHACE experiment: A two-method comparison
Elise Pendall, University of Wyoming; Feike A. Dijkstra, USDA-ARS; Yolima Carrillo, University of Wyoming; Matthew D. Wallenstein, Colorado State University; David G. Williams, University of Wyoming; Jana L. Heisler, University of Wyoming; Daniel R. LeCain, USDA-ARS; Jack A. Morgan, USDA-ARS
2:50 PM
5
Effects of freezing on soil nitrogen (N) dynamics along a net nitrification gradient in an N-saturated hardwood forest ecosystem
Frank Gilliam, Marshall University; Adam Cook, Marshall University; Salina Lyter, Marshall University; Mary Beth Adams, USDA Forest Service
3:10 PM
3:20 PM
6
Convergence of microbial community function in common environments is associated with loss of function in alternate environments
Ashley D. Keiser, Yale University; Michael S. Strickland, University of Georgia; Mark A. Bradford, Yale University; Noah Fierer, University of Colorado
3:40 PM
7
Hydrological and meteorological controls on landscape scale nitrous oxide (N2O) emissions
Junran Li, Cornell University; M. Todd Walter, Cornell University
4:00 PM
8
Nitrification and denitrification as sources of nitrous oxide in coastal plain wetlands under contrasting land uses
Jennifer L. Morse, Duke University; Marcelo Ardón, Duke University; Emily S. Bernhardt, Duke University
4:20 PM
9
Precipitation change shapes nitrogen cycling in a piñon-juniper woodland
Melissa A. Cregger, University of Tennessee; Nate G. McDowell, Los Alamos National Laboratory; William T. Pockman, University of New Mexico; Enrico A. Yepez, University of New Mexico; Aimee T. Classen, University of Tennessee