Tuesday, August 7, 2007: 8:00 AM-11:30 AM
J2, San Jose McEnery Convention Center
COS 21 - Climate change and carbon cycling II
8:00 AMCOS 21-1Modeled gross primary productivity in an old-growth tropical rain forest: Effects of climate and canopy complexity
Molly A. Cavaleri, University of Hawaii, Michael G. Ryan, USDA-Forest Service
8:20 AMCOS 21-2Canopy photosynthesis drives diel patterns of fine root respiration in a loblolly pine (Pinus taeda) forest exposed to elevated CO2 and nitrogen deposition
John E. Drake, University of Illinois at Urbana-Champaign, Gabriel Katul, Duke University, Evan DeLucia, University of Illinois
8:40 AMCOS 21-3The state of the carbon cycle in the northeastern United States and Canada 1982-present: Results from a constrained, dynamic terrestrial biosphere model
Paul R. Moorcroft, Harvard University, David M. Medvigy, Harvard University, Stephen Wofsy, Harvard University, J. William Munger, Harvard University
9:00 AMCOS 21-4Effects of multiple global changes on carbon dioxide and water vapor fluxes in an annual grassland
Claire K. Lunch, Stanford University, Christopher B. Field, Carnegie Institution of Washington
9:20 AMCOS 21-5Interacting effects of elevated carbon dioxide, nitrate, and phosphate on plant growth and spectral reflectance of a California grassland
Nona R. Chiariello, Stanford University, Todd Tobeck, Carnegie Institution, Yuka Otsuki Estrada, Carnegie Institution, Alison Appling, Duke University, Benjamin Z. Houlton, Stanford University, Noel P. Gurwick, Carnegie Institution, Christopher B. Field, Carnegie Institution of Washington
9:40 AM Break
9:50 AMCOS 21-6Elevated CO2 alters root N uptake and C turnover in Larrea tridentata L
Virginia L. Jin, USDA-Agricultural Research Service, R. Dave Evans, Washington State University
10:10 AMCOS 21-7The contribution of old carbon to respiration from arctic tundra following permafrost thaw
Edward A. G. Schuur, University of Florida, Jason G. Vogel, University of Florida, Koushik Dutta, University of Florida, Kathryn G. Crummer, University of Florida, Hanna Lee, University of Florida
10:30 AMCOS 21-8Reassessment of carbon accumulation at the Duke free air CO2 enrichment site: Interactions of atmospheric [CO2] with nitrogen and water availability and stand development
Heather R. McCarthy, Duke University, Ram Oren, Duke University, Kurt H. Johnsen, USDA Forest Service, Adrien C. Finzi, Boston University, Seth G. Pritchard, College of Charleston, Robert B. Jackson, Duke University, Charles W Cook, Duke University, Kathleen K. Treseder, University of California Irvine
10:50 AMCOS 21-9Microbial acclimation: Community-level functional responses to seasonality and 17 years of soil warming
Christian A. Davies, The University of Georgia-Athens, Mark A. Bradford, University of Georgia-Athens, Jacqueline Mohan, Marine Biological Laboratory, Jerry M. Melillo, Marine Biological Laboratory
11:10 AMCOS 21-10Terrestrial carbon-cycle feedback to climate warming: Synthesis of modeling results and experimental evidence
Yiqi Luo, University of Oklahoma

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