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PARENT SESSIONOral Session #53: Elevated CO2: Communities, ecosystems, soils. Presiding: G. Lin Wednesday, August 7. 8:00 AM to 11:30 AM. Coconino Meeting Room, TCC. [UNKNOWN: PRESTIME] Dermody, Orla*,1, Morgan, Patrick1, Bollero, German1, Long, Stephen1, DeLucia, Evan1, 1 University of Illinois, Urbana, Illinois. Canopy development of soybeans grown in elevated CO2 . [UNKNOWN: PRESTIME] Norby, Richard*,1, Sholtis, Johnna2, 1 Oak Ridge National Laboratory, Oak Ridge, TN2 Texas Tech University, Lubbock, TX. Elevated CO2 does not alter LAI of a forest stand. [UNKNOWN: PRESTIME] HANDA, TANYA*,1, H [UNKNOWN: PRESTIME] CHEN, HUA*,1, RYGIEWICZ, PAUL2, JOHNSON, MARK2, HARMON, MARK1, 1 Department of Forest Science, Oregon State University, Corvallis, OR2 US EPA, Corvallis, OR. Long-term decomposition of Douglas-fir roots grown under elevated CO2 and/or temperature treatments: implications for carbon sequestration . [UNKNOWN: PRESTIME] JOHNSON, NANCY*,1, WOLF, JULIE1, KOCH, GEORGE1, ROWLAND, DIANE2, 1 Northern Arizona University, Flagstaff, AZ2 USDA-ARS, National Peanut Research Laboratory, Dawson, GA. Plant community structure and function is influenced by mycorrhizae, CO2, and nitrogen. [UNKNOWN: PRESTIME] Mohan, Jacqueline*,1,2, LeBauer, David1,3, Schlesinger, William1, 1 Duke University, Durham, NC2 Harvard University, Cambridge, MA3 University of California - Davis, Davis, CA. Do evolutionary legacies impact ecosystem functioning? Genetic variation in decomposition responses to atmospheric CO2. [UNKNOWN: PRESTIME] . Break. [UNKNOWN: PRESTIME] KOCH, GEORGE*,1, ROWLAND, DIANE1, JONES, CHAS1, JOHNSON, NANCY1, 1 Northern Arizona University, Flagstaff, AZ. Evidence of a strong soil organism effect on plant response to CO2 and nitrogen enrichment. [UNKNOWN: PRESTIME] Moan, Jaina*,1, Marks, Jane1, Williamson, Christopher1, LeRoy, Carri1, 1 Northern Arizona University, Flagstaff, Arizona. The effect of elevated atmospheric CO2 on in-stream cottonwood decomposition and detritivore assemblages. [UNKNOWN: PRESTIME] Huxman, Travis*,1, Nagel, Jennifer2, Zitzer, Stephen3, Charlet, Terese4, DeFalco, Leslie4, Housman, David4, Griffin, Kevin2, Smith, Stanley4, 1 Univeristy of Arizona, Tucson, AZ2 Columbia University3 Desert Research Institute4 University of Nevada, Las Vegas. Responses of the annual plant component of a Mojave Desert ecosystem to elevated CO2. [UNKNOWN: PRESTIME] WOLFE-BELLIN, KELLY*,1, BAZZAZ, F.1, 1 Harvard University, Cambridge, MA. Global change and plant communities: multiple resource gradients influence composition and productivity of an annual community. [UNKNOWN: PRESTIME] Anderson, Hans*,1, Hymus, Graham1, Hinkle, C Ross2, Drake, Bert1, 1 Smithsonian Environmental Research Center, Edgewater, MD2 Dynamac Corporation, Kennedy Space Center, Fl. Increased aboveground biomass in elevated CO2 masks species-specific growth responses in a scrub-oak ecosystem. [UNKNOWN: PRESTIME] Finzi, Adrien*,1, 1 Boston University, Boston, MA. Models and mechanisms linking carbon, water and nutrient cycles under elevated CO2. |