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- W2363803088 abstract "The gully erosion which usually shows different kinds of landforms is caused by a variety of topographic factors. In present study, we take the small watershed of Beiyanzikou in Jiaodong Peninsula as a study area. We use DOM and DEM as data source to estimate and validate gully erosion susceptibility, and study the relationship between gully erosion and topographic factors including topographical wetness index(TWI), length-slope factor(LS),stream power index(SPI), aspect, plan curvature, and surface roughness. The results show that the gully erosion frequently occurs in grassland with large slope steepness and length,strong water power index and low surface humidity, and mainly localized in the concave of the sunny slope. Furthermore, gully erosion mainly occurs in areas with the soil erosion susceptibility above moderate degree and accounts for 96.4% of total gully erosion. In these areas, the response accuracy of the value of weighs from the experimental area to the gully erosion in the validation area is 87.9%. It is close to the practical value(93.3%), which suggests the high precision of our study. The results can provide a basis to evaluating regional gully erosion." @default.
- W2363803088 created "2016-06-24" @default.
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- W2363803088 date "2013-01-01" @default.
- W2363803088 modified "2023-09-26" @default.
- W2363803088 title "Study on the relationship between gully erosion and topographic factors based on GIS in small watershed of Jiaodong Peninsula" @default.
- W2363803088 hasPublicationYear "2013" @default.
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