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Watershed raster - based geographic information system research and development

Author: HeFenFang
Tutor: WuDongLiangï¼›TangXiaoMing
School: Central South Forestry University
Course: Ecology
Keywords: Grid Valley Digital Elevation Model Geographic Information Systems
CLC: S157
Type: Master's thesis
Year: 2001
Downloads: 135
Quote: 2
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Abstract


In this paper, the use of geographic information systems , the establishment of the Jixian Caijiachuan basin digital elevation model ( DEM ) . Hydrologic characteristics of the basin surface water flow direction , the bus capacity , sub- catchment delineation and DEM , topographic factor LS value calculated by the Universal Soil Loss Equation (USLE) , is conducive to the amount of soil erosion in the basin the calculation of the rasterized polygon plots with DEM overlay, spatial data and attribute data with output to a common database . The results show that : and easy comprehensive and more accurate analysis , and is conducive to the reasonable land use planning , agroforestry production of the basin has important guiding significance of the watershed based on the above .

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CLC: > Agricultural Sciences > Agriculture as the foundation of science > Soil > Soil and Water Conservation
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