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[1]XU Jin,HE Xiao-hui,WANG fang,et al.Assessment on Erosion Risk Based on GIS in Huangshui River Valley (Xi’ning Segment)[J].Research of Soil and Water Conservation,2013,20(05):57-59.

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Assessment on Erosion Risk Based on GIS in Huangshui River Valley (Xi’ning Segment)

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 05 Page number: 57-59 Column: Public date: 2013-10-28

Title:: Assessment on Erosion Risk Based on GIS in Huangshui River Valley (Xi’ning Segment)

Author(s):: XU Jin¹, HE Xiao-hui^2,3, WANG fang², MA Guo-jun³, PU Huan-huan³; 1. Huangshui River Basin(Xining Segment) Governance Management Committee, Xi’ning 810000, China;
2. China Institute of Water Resources and Hydropower Research, Beijing 100038;
3. College of Water Conservancy and Environmental Engineering, Zhengzhou University, Zhengzhou 450001, China

Keywords:: soil erosion; erosion risk evaluation; Huangshui River Basin (Xi’ning segment)

CLC:: S157.1

DOI:: -

Abstract:: Huangshui River Basin (Xi’ning segment) was chosen as study area. In accordance with the geographical and ecological characteristics, rainfall erosivity, slope, soil erodibility, vegetation coverage were selected as indicators of erosion risk evaluation of soil erosion.A map of single-factor erosion risk evaluation was made with supports of ArcGIS, moreover, a comprehensive evaluation of soil erosion risk was conducted based on ArcGIS spatial overlay analysis. The results show moderate land high risk areas of soil erosion within the study area accounted for 71.4%; mild risk areas and no risk area accounted for 1.37% and 27.08%, respectively. Very high risk region accounted for only 0.15%. However, the relatively high risk area of soil erosion mainly distributed in the larger population density area, and mainly around the Xi’ning City and Huangshui valley area.

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