作者: Daniel A. Levine , William W. Jones
DOI: 10.1080/07438149009354698
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摘要: ABSTRACT This paper describes a geographic information system (GIS) approach to modeling the effects of distance water and slope angle on external phosphorus loading lakes. A raster GIS database was created that included land use, topography, soils, watershed boundaries for three Indiana reservoirs (Lakes Kickapoo, Lenape, Shakamak). Three sets export coefficients were selected assigned each cell according use. Linear filters designed applied such areas nearest with steepest slopes would contribute greatest amount relative initial coefficient. These filtered used calculate aerial in-lake concentrations. The predicted concentrations within 5 μg/L observed concentration in Lake Shakamak scenarios, 22 Lenape three...