| Generation of the Data Required by AGNPS |
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| 作者姓名： | 于苏俊 |
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| 作者单位： | School of |
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| 摘 要： | Introduction Non pointsource (NPS) pollutionhasbeenidentifiedasthemajorpollutionofwaterresourcesenvironment.NPSpollutionfromagriculturalactivitiescontributesto 72 %oftheimpairedstreamsinworldwidereportingsourcesinlastfewdecades1] .Theagriculturalnon p…
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Generation of the Data Required by AGNPS |
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| Yu Sujun.Generation of the Data Required by AGNPS[J].Journal of Southwest Jiaotong University,2003,11(1). |
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| Authors: | Yu Sujun |
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| Abstract: | Remote sensing techniques and geographic information systems offer a good means of collecting and manipulating the data required to assess conservation practices. A method for automatic generation of most of the data required by the agricultural non point source (AGNPS) erosion model is put forward from three sources: (1) files with contour lines from topographic maps, (2) soil mapping units from soil surveys, and (3) land cover from land sat TM image classifications. |
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| Keywords: | GIS remote sensing non point source pollution modeling AGNPS |
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