COS 78
Biogeochemistry: C And N Cycling In Response To Global Change I

Wednesday, August 12, 2015: 1:30 PM-5:00 PM
303, Baltimore Convention Center
1:30 PM
 Belowground carbon fluxes in an old-field ecosystem are sensitive to climate change
Richard P. Phillips, Indiana University; Jeffrey S. Dukes, Purdue University
1:50 PM
 Foliar phosphorus concentration exerts stronger control of photosynthesis than does nitrogen across diverse woody species in Panama
Richard J. Norby, Oak Ridge National Laboratory; Lianhong Gu, Oak Ridge National Laboratory; Anna M. Jensen, Linnaeus University; Benjamin L. Turner, Smithsonian Tropical Research Institute; Anthony P. Walker, Oak Ridge National Laboratory; Jeffrey M. Warren, Oak Ridge National Laboratory; David J. Weston, Oak Ridge National Laboratory; Klaus Winter, Smithsonian Tropical Research Institute
2:10 PM
 Does de-acidification affect forest floor carbon dynamics?
Gary M. Lovett, Cary Institute of Ecosystem Studies; Mary A. Arthur, University of Kentucky; Katherine F. Crowley, Cary Institute of Ecosystem Studies
2:30 PM
 Abiotic drivers, not woody legume encroachment, predict nitrogen trace gas flux from a semi-arid subtropical savanna
Fiona M. Soper, Cornell University; Peter M. Groffman, Cary Institute of Ecosystem Studies; Thomas W. Boutton, Texas A&M University; Jed P. Sparks, Cornell University
2:50 PM
 Untangling the ecosystem impacts of non-native plants: insights from a Microstegium vimineum invasion along a logged chronosequence
Noah W. Sokol, Yale University; Sara Kuebbing, Yale University; Mark A. Bradford, Yale University
3:10 PM
3:20 PM
 An empirical assessment of a stoichiometric and microbial explicit nutrient cycling model
Robert W. Buchkowski, Yale University; Oswald J. Schmitz, Yale University; Mark A. Bradford, Yale University
3:40 PM
 Symbiotic N2 fixation facilitates ecosystem resilience to hydroclimate variability
Jeffrey M. Minucci, University of Georgia; Chelcy Ford Miniat, Coweeta Hydrologic Laboratory; Nina Wurzburger, University of Georgia
4:00 PM
 Boreal climate feedbacks from changes in carbon stocks after land-use change
Jose M. Gruenzweig, Hebrew University of Jerusalem; David W. Valentine, University of Alaska Fairbanks; F. Stuart Chapin III, University of Alaska Fairbanks
4:20 PM
 Ecosystem nitrogen retention in response to 8 years of exposure to elevated CO2 and nitrogen pollution
Melissa A. Pastore, Villanova University; J. Adam Langley, Villanova University; J. Patrick Megonigal, Smithsonian Environmental Research Center
4:40 PM
 Soil carbon stocks, age, and respired CO2 from soybean fields and forests in Mato Grosso, Brazil
R Chelsea Nagy, Brown University; Stephen Porder, Brown University; Paulo M. Brando, Instituto de Pesquisa Ambiental da Amazônia (IPAM); Eric A. Davidson, University of Maryland Center for Environmental Science; Michela Figueira, Universidade Federal do Oeste do Pará; Christopher Neill, Marine Biological Laboratory; Shelby Riskin, Brown University; Susan Trumbore, Max Planck Institute for Biogeochemistry; Luiz A. Martinelli, University of São Paulo
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