Sloping Farmland Investigation Method in Small Watershed Based on GIS
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Sloping Farmland Investigation Method in Small Watershed Based on GIS
Bulletin of Soiland Water ConservationVol. 20, Issue 5, Pages: 37-40(2001)
作者机构:
中国科学院水利部水土保持研究所, 陕西杨凌,712100
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DOI:
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Published:2001
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LI Xiaoyan, LI Bicheng, AN Shaoshan. Sloping Farmland Investigation Method in Small Watershed Based on GIS[J]. Bulletin of Soiland Water Conservation, 2001, 20(5): 37-40.
DOI:
LI Xiaoyan, LI Bicheng, AN Shaoshan. Sloping Farmland Investigation Method in Small Watershed Based on GIS[J]. Bulletin of Soiland Water Conservation, 2001, 20(5): 37-40.DOI:
Sloping Farmland Investigation Method in Small Watershed Based on GIS
The research of sloping farmland is the key part of soil and water loss harness as well as soil and water conservation planning
the development and the application of GIS offered a new technical means for the research of sloping farmland. It is the basic function for GIS to get unit polygon by overlaying the vector map
but the uncertainty of polygon is the disastrous factor affecting GIS's data quality. Based on MapGIS
updated information by DOM. The method of Overlaying Vector and Grid and operating attribute table is used to prosecute the sloping farmland investigation quickly in small watershed. It is the prominent of Overlaying Vector and Grid in the process of information combination.