Abstract
This paper collected attribute data of affecting soil erosion factor by RS and GIS, combined soil erosion model, got the load and density of soil erosion in Luoning County, and analyzed the relationship between soil erosion and its main affecting factors. The results indicated that soil erosion modulus was 2799.29t/km2 and erosion load 6495744t, 61% of Luoning County had tiny or light degree erosion, while the serious eroded area, which mainly concentrated in the west, only occupied 20% of the area, but contributed 57.64% of sediment of whole area and need more protection. There is a basically positive correlation between soil erosion and slope; midding and more serious erosion were increased in different land use such as waters, farmland, construction land, forest, and unused land.
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