HR: 15:25h
AN: B43F-08    [Abstracts]
TI: Past Impacts and Future Scenarios of Climate on Ecosystem Carbon Balance for the Western United States
AU: * Potter, C
EM: cpotter@mail.arc.nasa.gov
AF: NASA Ames Research Center, Ecosystem Science and Technology Mail Stop 242-4, Moffett Field, CA 94035 United States
AU: Klooster, S
EM: steve@gaia.arc.nasa.gov
AF: California State University Monterey Bay, Ecosystem Science and Technology Mail Stop 242-4, Moffett Field, CA 94035 United States
AU: Genovese, V
EM: vbrooks@mail.arc.nasa.gov
AF: California State University Monterey Bay, Ecosystem Science and Technology Mail Stop 242-4, Moffett Field, CA 94035 United States
AU: Hiatt, S
EM: shiatt@mail.arc.nasa.gov
AF: California State University Monterey Bay, Ecosystem Science and Technology Mail Stop 242-4, Moffett Field, CA 94035 United States
AU: Fladeland, M
EM: mfladeland@mail.arc.nasa.gov
AF: NASA Ames Research Center, Ecosystem Science and Technology Mail Stop 242-4, Moffett Field, CA 94035 United States
AU: Gross, P
EM: pgross@mail.arc.nasa.gov
AF: California State University Monterey Bay, Ecosystem Science and Technology Mail Stop 242-4, Moffett Field, CA 94035 United States
AB: Satellite remote sensing and vegetation-soil modeling are being used to estimate the carbon balance for ecosystems in the western United States. To support decision making for carbon management, we report on the CQUEST (Carbon Query and Evaluation Support Tools) application, with spatially detailed (less than 10 km resolution) terrestrial carbon budgets for western regions of U. S. in the 1980s and 1990s. Surface soils and dead woody litter are by far the largest storage pools for carbon across the country, representing more than 35 Pg C with residence times of 25 years or less. The Rocky Mountain and Pacific Northwest regions store some of the largest pools of ecosystem carbon in the nation. Although net primary production was estimated to increase on a nationwide basis during the 1990s, the net terrestrial sink in ecosystems was typically small in the the Pacific states (CA, OR, WA), relative to fossil fuel-related carbon emissions in the U.S. on an annual basis. This makes decision making to protect large surface soil carbon and woody litter pools crucial for maintaining the carbon balance of the Pacific states and the entire U.S. under future climate shifts.
UR: http://geo.arc.nasa.gov/sge/casa/
DE: 0315 Biosphere/atmosphere interactions (0426, 1610)
DE: 0428 Carbon cycling (4806)
DE: 0429 Climate dynamics (1620)
DE: 0439 Ecosystems, structure and dynamics (4815)
DE: 0480 Remote sensing
SC: Biogeosciences [B]
MN: Fall Meeting 2005