RETRACTED ARTICLE: Assessment of soil erosion using RUSLE and GIS: a case study of the Maotiao River watershed,Guizhou Province,China |
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| Authors: | Xu Yue-qing Peng Jian Shao Xiao-mei |
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| Institution: | (1) Department of Land Resources and Management, College of Resources and Environment, China Agricultural University, 100094 Beijing, China;(2) School of Management, Central University of Nationalities, 100081 Beijing, China;(3) Key Laboratory of Land Use, Ministry of Land and Resources, China Land Surveying and Planning Institute, 100035 Beijing, China |
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| Abstract: | Due to the existence of fragile karst geo-ecological environments, such as environments with extremely poor soil cover, low
soil-forming velocity, and fragmentized terrain and physiognomy, as well as inappropriate and intensive land use, soil erosion
is a serious problem in Guizhou Province, which is located in the centre of the karst areas of southwestern China; evaluation
of soil loss and spatial distribution for conservation planning is urgently needed. This study integrated the revised universal
soil loss equation (RUSLE) with a GIS to assess soil loss and identify risk erosion areas in the Maotiao River watershed of
Guizhou. Current land use/cover and management practices were evaluated to determine their effects on average annual soil
loss and future soil conservation practices were discussed. Data used to generate the RUSLE factors included a Landsat Thematic
Mapper image (land cover), digitized topographic and soil maps, and precipitation data. The results of the study compare well
with the other studies and local data, and provide useful information for decision makers and planners to take appropriate
land management measures in the area. It thus indicates the RUSLE–GIS model is a useful tool for evaluating and mapping soil
erosion quantitatively and spatially at a larger watershed scale in Guizhou. |
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| Keywords: | Soil erosion RUSLE GIS Guizhou Province China |
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