Abstract:
This study analyzes the spatial distribution of soil erosion in Jincheng Basin to investigate the influences of slope gradient and land cover types on erosion intensity, aiming to provide technical support for regional soil erosion prevention and control. By utilizing spatial analysis techniques and the Revised Universal Soil Loss Equation (RUSLE), soil erosion rates are calculated and classified. The results indicate that the maximum soil erosion rate in Jincheng Basin reaches 28 912.2 t/(km
2·a), with an average rate of 936.41 t/(km
2·a). The most severe erosion is concentrated in the downstream area of Danhe River in the southeastern part of the basin. Slopes ranging from 15° to 35° are identified as the high risk zone for soil erosion, accounting for 72.59% of the total area experiencing erosion and contributing to 90.28% of the total soil loss. Among different land cover types, cultivated land exhibits the highest occurrence frequency of soil erosion at 82.01%, while grassland on slopes records the maximum erosion rate of 7 186.08 t/(km
2·a). Therefore, slope gradient and land cover type directly influence the intensity of soil erosion in Jincheng Basin, calling for prioritized implementation of slope stabilization, returning farmland to forest, and other effective control measures.