10.2190/KVQE-07Q9-DMR6-DKGW KVQE07Q9DMR6DKGW 5 Environmental Effects of Forest Land Uses: A Multi-Resource Simulation-Based Approach 309 340 20020509 20020509 20020509 20020509 KVQE07Q9DMR6DKGW.pdf http://baywood.metapress.com/link.asp?target=contribution&id=KVQE07Q9DMR6DKGW 4 B. Bruce Bare James A. Ryan Gerard F. Schreuder College of Forest Resources, University of Washington, Seattle, Washington Describes a computer simulation model for examining the physical, economic and environmental consequences of alternative land-use decisions and manipulations of a forest ecosystem. The model consists of a set of subsystems which include forest production, recreation, fish, wildlife, atmospheric and hydrologic processes. Model outputs are assessed in relation to their impacts on land, water and air resources as well as the production of utilizable goods and services. The significance of space-time model resolution in assessing the environmental consequences of alternative land-use plans and manipulations is discussed. The model is applied to a portion of the Snohomish River Basin in Western Washington through the use of four alternative management strategies. Projected impacts for the period 1974-2000 are reported in graphical form. With the exception of projected suspended sediment loads, results suggest that the forest management manipulations included in the four alternative strategies and the activities associated with developed camping will not significantly alter the pre-manipulation levels of selected environmental indices. B. B. Bare, and G. F. Schreuder, Wildland Management and Environmental Quality: A Multiple Resource Simulation Model, Proceedings of a Conference on Non-Point Pollution in Forest Resources Management. College of Forest Resources, University of Washington, Seattle, Washington, pp. 44-52, 1974. J. A. Ryan, I. G. Morison and J. S. Bethel, Ecosystem Modeling of a Forested River Basin, Water Resour. Bul. 10(4): 703-710, 1974. B. B. Bare and J. C. Cook, A Multiple Resource Wildlands Information System for Environmental Impact Assessment Modeling. Proceedings of SAF Workshop on Inventory Design and Analysis, Fort Collins, Colorado, 1974. pp. 220-245, 1974. Snohomish Valley Environmental Network, Annual Report for June 1, 1972 to May 31, 1974, College of Forest Resources, University of Washington, Seattle, Washington, 84 pp., 1974. C. W. Thornthwaite, Report of the Committee on Transpiration and Evaporation, Amer. Geophys. Union Trans. 25: 683-693, 1944. U. S. Army Corps of Engineers, Runoff from Snowmelt, Engineering and Design Manuals. E.m. 1110-2-1406, 1960. H. W. Anderson, Suspended Sediment Discharge as Related to Streamflow, Topography, Soil and Land Use, Trans. Amer. Geophys. Union. Res. 35(2): 268-281, 1954. D. G. Moore, Fertilization and Water Quality, Western Reforestation Coordinating Committee, Western Forestry and Conservation Association, Portland, Oregon, 1971. H. Anderson, Tahjya River Project, Washington State Department of Ecology. Unpublished Report, 1973. K. W. Malueg, C. F. Powers and D. F. Krawczk, Effects of aerial forest fertilization with urea pellets on nitrogen levels in a mountain stream, Northwest Science, Vol. 46, No. 1, pp. 52-58, 1972. M. McCall, The effects of aerial forest fertilization on water quality for streams in the Capital Forest, Washington State Department of Ecology, pp. 1-15, 1970. D. W. Cole and S. P. Gessel, Movement of elements through a forest soil as influenced by tree removal and fertilizer additions, Proceedings of Second North American Forest Soils Conference, Oregon State University Press, Corvallis, Oregon, pp. 95-104, 1965. G. W. Brown, Predicting Temperatures of Small Streams, Water Resour. Res. 5(1): 68-75, 1969. G. W. Brown and J. T. Krygier, Effects of Clear-cutting on Stream Temperature, Water Resour. Res. 6(4): 1133-1144, 1970. G. W. Brown, Predicting the Effects of Clear-cutting on Stream Temperature, J. Soil and Water Cons. 25: 11-13, 1970. C. D. Hodgman (ed.), Handbook of Chemistry and Physics. Forty-first Edition, Chemical Rubber Publishing Co., Cleveland, Ohio, 1960. C. Chambers and F. Wilson, Empirical Yield Tables for the Douglas-fir Zone, DNR Report No. 20, Department of Natural Resources, Olympia, Washington, 1971. Washington Department of Natural Resources, Sustainable Harvest Analysis, Harvest Regulation Report No. 4, Olympia, Washington, 1971. C. J. Chicchetti, J. J. Seneca and P. Davidson, The Demand and Supply of Outdoor Recreation, Bureau of Economic Research, Rutgers University, New Brunswick, N. J., 1969.