Predicting the hydrologic implications of land use change in forested catchments Dennis P. Lettenmaier Department of Civil and Environmental Engineering University of Washington Chapman Conference on Ecosystem Interactions with Land Use Change June 14, 2003 Santa Fe, New Mexico
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Predicting the hydrologic implications of land use change in forested catchments
Predicting the hydrologic implications of land use change in forested catchments. Dennis P. Lettenmaier Department of Civil and Environmental Engineering University of Washington Chapman Conference on Ecosystem Interactions with Land Use Change June 14, 2003 Santa Fe, New Mexico. - PowerPoint PPT Presentation
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Predicting the hydrologic implications of land use change in forested catchments
Dennis P. LettenmaierDepartment of Civil and Environmental Engineering
University of Washington
Chapman Conference on
Ecosystem Interactions with Land Use Change
June 14, 2003
Santa Fe, New Mexico
Outline of this talk
• Background – the signature of land use change
• Example 1 – Logging and flooding in the Pacific Northwest
• Example 2 –Hydrologic effects of vegetation change in the upper Midwest
• Some outstanding issues in prediction of hydrologic effects of land cover change
1) Continental and regional signatures of land cover change
Source:
National Institute of Public Health and the Environment (RIVM, Netherlands) and the Center for Sustainability and the Global Environment (SAGE, University of Wisconsin).
Estimated 1850 and 1990 global land cover
Early Conifer
Middle Conifer
Late Conifer
Early Deciduous
Middle Deciduous
Late Deciduous
Brush
Agriculture
Water
Historical (1900) Current (1990)
Columbia River basin estimated 1900 and 1990 vegetation cover (from ICBEMP)
2) Example 1: Logging and flooding in the Pacific Northwest