Respectively, Research Biologist, U.S. Environmental Protection Agency (MD-56), Research Triangle Park, North Carolina 27711; Deputy National Program Manager, Forest Health Monitoring, USDA Forest Service, Box 12254, Research Triangle Park, North Carolina 27709; Corporate Fellow, Oak Ridge National Laboratory, Box 2008, Bldg. 1505, MS-6036, Oak Ridge, Tennessee 37831; Director, UNC Water Resources Research Inst., do North Carolina State University, Box 7192, Jordan Hall, Raleigh, North Carolina 27695; Research Scientist, U.S. Environmental Protection Agency (MD-56), Research Triangle Park, North Carolina 27711; and Chief, Landscape Ecology Branch, U.S. Environmental Protection Agency, 944 E. Harmon Ave., Las Vegas, Nevada 89119 (E-Mail/Wickham: email@example.com).
LAND COVER AS A FRAMEWORK FOR ASSESSING RISK OF WATER POLLUTION1
Article first published online: 8 JUN 2007
JAWRA Journal of the American Water Resources Association
Volume 36, Issue 6, pages 1417–1422, December 2000
How to Cite
Wickham, J. D., Riitters, K. H., O'Neill, R. V., Reckhow, K. H., Wade, T. G. and Jones, K. B. (2000), LAND COVER AS A FRAMEWORK FOR ASSESSING RISK OF WATER POLLUTION. JAWRA Journal of the American Water Resources Association, 36: 1417–1422. doi: 10.1111/j.1752-1688.2000.tb05736.x
Paper No. 99133 of the Journal of the American Water Resources Association.Discussions are open until August 1, 2001.
- Issue published online: 8 JUN 2007
- Article first published online: 8 JUN 2007
- nutrient export;
- risk analysis;
ABSTRACT: A survey of numerous field studies shows that nitrogen and phosphorous export coefficients are significantly different across forest, agriculture, and urban land-cover types. We used simulations to estimate the land-cover composition at which there was a significant risk of nutrient loads representative of watersheds without forest cover. The results suggest that at between 20 percent and 30 percent nonforest cover, there is a 10 percent or greater chance of N or P nutrient loads being equivalent to the median values of predominantly agricultural or urban watersheds. The methods apply to environmental management for assessing the risk to increased nonpoint nutrient pollution. Interpretation of the risk measures are discussed relative to their application for a single watershed and across a region comprised of several watersheds.