SYMP 17 - Ecosystem Capacity for Sustaining Long-term Water Supplies

Thursday, August 9, 2012: 8:00 AM-11:30 AM
Portland Blrm 252, Oregon Convention Center
Julia A. Jones, Oregon State University
Nancy B. Grimm, Arizona State University; Clifford N. Dahm, University of New Mexico; Alan P. Covich, University of Georgia; and Mark W. Williams, University of Colorado
Julia A. Jones, Oregon State University
The objective of the symposium is to examine how ecological processes contribute to sustained water yield; how climate change, natural and anthropogenic disturbance have altered ecosystem water yield and water quality; and how these ecological processes and effects on water supplies vary among major regions of North America. The symposium will consist of a set of talks, each of which examines the trends in climate and hydrology at a long-term ecological research site and draws interpretations about ecological processes responsible for these trends and their implications for ecosystem management and water policy in the region where the long-term study is located. This symposium builds on two years of efforts to synthesize 20 to 60-year climate and hydrology records from long-term ecological research sites. Results from these analyses indicate that ecological processes including vegetation adaptations, disturbance, and succession strongly influence water yield and may overwhelm climate effects on water yield. The synthesis is based on records from the Long-Term Ecological Research Network, US Forest Service Experimental Forests and Ranges, USGS Water, Energy, and Biogeochemical Budgets program, USGS National Water Information Service, and Canadian long-term study sites. Each talk will focus on a particular region and its emblematic ecological and water policy issues, including novel analyses of long-term data.
long-term studies
8:50 AM
 Sustaining water demands to urban ecosystems in the southwestern United States
Daniel L. Childers, Arizona State University; Nancy B. Grimm, Arizona State University; Benjamin Ruddell, Arizona State University
9:40 AM
9:50 AM
 Climate variability and water supplies in Rocky Mountain ecosystems
Patrick S. Bourgeron, University of Colorado at Boulder; Mark W. Williams, University of Colorado; Dave Clow, USGS
10:15 AM
 Climate change, snowpacks, and biogeochemical cycling in northern temperate forest ecosystems
John L. Campbell, USDA Forest Service; Stephen D. Sebestyen, USDA Forest Service Research; Emery R. Boose, Harvard University; Eric G. Booth, University of Wisconsin; Robert J. Stewart, University of New Hampshire; Wil Wollheim, University of New Hampshire; Emily H. Stanley, University of Wisconsin
10:40 AM
 Drought, exurban expansion, and water yield in southern forest ecosystems
Chelcy R. Ford, USDA Forest Service Southern Research Station; Stephanie N. Laseter, USDA Forest Service Southern Research Station; Ge Sun, USDA Forest Service; James Vose, USDA Forest Service Southern Research Station
11:05 AM
 Climate trends and water management for salmonids in Pacific Northwest ecosystems
Ivan Arismendi, Oregon State University; Alba Argerich, Oregon State University; Julia A. Jones, Oregon State University
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