PS 45 - Biogeochemistry: C and N Cycling in Response to Global Change

Wednesday, August 5, 2009: 5:00 PM-6:30 PM
Exhibit Hall NE & SE, Albuquerque Convention Center
 Global distribution of gaseous nitrogen losses from the unmanaged terrestrial biosphere: results from a stable nitrogen isotope model
Edith Bai, Instituted of Applied Ecology, Chinese Academy of Sciences; Benjamin Z. Houlton, University of California, Davis; Yingping Wang, CSIRO Marine and Atmospheric Research
 Global change factors interact with fungal endophyte symbiosis to determine tall fescue litter chemistry
Glade B. Brosi, University of Kentucky; Jim A. Nelson, University of Kentucky; Rebecca L. McCulley, University of Kentucky; Aimee T. Classen, University of Tennessee, Knoxville; Richard Norby, Oak Ridge National Laboratory
 Effects of elevated CO2 on soil trace gas (CH4, N2O and NO) fluxes in a scrub oak ecosystem at Kennedy Space Center, FL, USA
Anne E. Hartley, Florida Gulf Coast University; Rosvel Bracho, University of Florida; Daniel B. Stover, US Department of Energy
 Biodiversity, nitrogen deposition and CO2 effects on carbon storage in grassland soils
Joseph Pignatello Reid, University of Minnesota - Twin Cities; E. Carol Adair, University of Vermont; Sarah E. Hobbie, University of Minnesota; Peter B. Reich, University of Minnesota
 Importance of gaseous N losses to the nitrogen budget of chaparral ecosystems of the Sierra Nevada, California
Peter M. Homyak, University of California, Santa Barbara; James O. Sickman, UC Riverside; Amy E. Miller, National Park Service; John Melack, University of California, Santa Barbara; Kevin Skeen, University of California, Santa Barbara
 Soil moisture regime and soil type affect the decomposition of graminoid litter grown under three levels of atmospheric CO2
Virginia L. Jin, USDA-ARS; Richard L. Haney, USDA, Agricultural Research Service; Philip A. Fay, USDA, Agricultural Research Service; Wayne H. Polley, USDA, Agricultural Research Service
 The effect of variable snowpack and tree girdling on soil carbon cycling in a subalpine forest
Nicole A. Trahan, University of Wyoming; Stanfield Y. Lee, University of Colorado; David R. Bowling, University of Utah; Russell K. Monson, University of Arizona
 Examining seasonal substrate and moisture limitation to soil respiration using field amendments
Erin M. Berryman, University of Idaho; John D. Marshall, Swedish University of Agricultural Sciences
 Does soil type affect soil nitrogen response to changing CO2 concentrations?
Alexia M. Kelley, North Carolina State University; Philip A. Fay, USDA, Agricultural Research Service; H. Wayne Polley, USDA, Agricultural Research Service; Robert B. Jackson, Stanford and Duke universities
 The role of carbon and nitrogen linkages in grassland recovery from 9 years of drought
Sarah E. Evans, Michigan State University; Ingrid C. Burke, University of Wyoming; William K. Lauenroth, University of Wyoming; Joseph C. von Fischer, Colorado State University; Matthew D. Wallenstein, Colorado State University
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