PS 48
Biogeochemistry: C and N Cycling in Response to Global Change

Thursday, August 14, 2014: 4:30 PM-6:30 PM
Exhibit Hall, Sacramento Convention Center
PS 48-40
Nitrogen availability does not decrease progressively under carbon dioxide enrichment
Junyi Liang, University of Oklahoma
PS 48-41
Aridity and plant functional type influence soil carbon pools across an Australian aridity gradient
Heather L. Throop, New Mexico State University; David J. Eldridge, University of New South Wales; Michaela Buennemann, New Mexico State University; Keska Kemper, Cleveland High School
PS 48-42
Beyond the transient: A simple model demonstrates that the rhizosphere priming effect can cause sustained increases in the nitrogen mineralization rate
Ray Dybzinski, Princeton University; Benjamin Sulman, Princeton University; Caroline E. Farrior, Princeton University; Stephen W. Pacala, Princeton University
PS 48-43
Water-nitrogen effects on below-ground primary production in a Chihuahuan Desert grassland
Joshua H. Haussler, Arizona State University; Osvaldo E. Sala, Arizona State University
PS 48-44
Soil microbes: Precursors of stabilized soil carbon
Laura J. Dane, University of California, Berkeley; Rachel A. Neurath, University of California, Berkeley; Donald J. Herman, University of California, Berkeley; Jeffrey A. Bird, Queens College, CUNY; Mary K. Firestone, University of California, Berkeley
PS 48-45
Differing effects of elevated CO2, N addition, and microbial community structure on soil organic matter protection in a Minnesotan grassland
Clare E. Kazanski, University of Minnesota; Peter B. Reich, University of Minnesota; Sarah E. Hobbie, University of Minnesota
PS 48-46
Post-fire changes in dissolved organic carbon and nitrate concentration and the effects on nutrient uptake in a boreal forest stream in interior Alaska
Ann K. Olsson, University of Alaska Fairbanks; Jeremy B. Jones, University of Alaska Fairbanks
PS 48-47
Parameter differences cause diverse predictions of carbon sequestration between two global land models
Rashad Rafique, JGCRI, PNNL,; Yiqi Luo, University of Oklahoma; Jianyang Xia, University of Oklahoma; Oleksandra Hararuk, University of Oklahoma
Cancelled
PS 48-48
Microbial priming of ancient soil carbon in an upland forest soil (widthdrawn)
Duncan C. McKinley, US Forest Service; Blanca Bernal, Wilma H. Schiermer Olentangy River Wetland Research Park; Paul M. White, USDA; B.a. Hungate, Northern Arizona University; J. Patrick Megonigal, Smithsonian Environmental Research Center
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