基于USLE模型的望奎县2017年土壤侵蚀定量分析

Quantitative Analysis of Soil Erosion in Wangkui County in 2017 Based on USLE Model

利用USLE模型对望奎县2017年土壤侵蚀做定量分析。结果表明:1)该县土地侵蚀总面积为567.88 km^(2),占总土地面积的24.47%。2)以中度侵蚀为主,中度侵蚀面积为298.58 km^(2),占总侵蚀的52.58%;轻度侵蚀次之,面积为218.30 km^(2),占38.44%;强烈侵蚀面积为33.73 km^(2),占5.94%;剧烈侵蚀地区总面积为10.51 km^(2),占1.85%;极强烈侵蚀面积为6.76 km^(2),占1.19%。研究结果可以为望奎县及具有同类特点的区域在水土治理和防治上提供借鉴依据。

This paper makes a quantitative analysis of soil erosion in Wangkui county in 2017 by using USLE Model.The results show that:(1) the total area of land erosion in this county is 567.88 km^(2),It accounts for 24.47 % of the total land area.(2) It is dominated by moderate erosion,with a moderate erosion area of 298.58 km^(2),accounting for 52.58 % of the total land area;Slight erosion takes the second place,with an area of 218.30 km^(2),accounting for 38.44 % of the total land area;The strongly eroded area is 33.73 km^(2),accounting for 5.94 % of the total land area;The total area of severe erosion area is 10.51 km^(2),accounting for 1.85 % of the total land area;The extremely strong erosion area is 6.76 km^(2),accounting for 1.19 % of the total land area.The results can provide reference for soil and water control in Wangkui county and areas with similar characteristics.