基于RUSLE模型的梯田与淤地坝水土保持效应研究OA

In response to the severe problem of soil erosion in the Loess Plateau,in order to study the soil and water conservation effects of terraced fields and soil-retaining dams,based on the Revised Universal Soil Loss Equation(RUSLE)theory,and using the quantitative assessment method,the erosion reduction effects and spatial distribution of terraced fields and soil-retaining dams were investigated.The study quantitatively analyzed five core factors,namely rainfall erosivity,soil erodibility,slope length,crop cover management,and soil and water conservation measures,by extracting slope morphology parameters and constructing a dynamic succession model of the basin.The results show that through the comprehensive management of"terraced fields+soil-retaining dams",the soil erosion modulus has been significantly reduced from 229.74t/(hm2·a)to 22.81 t/(hm2·a),with a reduction rate of 47.52%~93.48%.The comprehensive management benefits are remarkable.