Under the interference of natural and human factors, the Loess Plateau area suffers from more serious hydraulic erosion all year round. In order to slow down the process of hydraulic erosion and avoid damage to human life and property, it is of great significance to conduct sensitivity analysis. In this paper, a hydraulic erosion sensitivity evaluation model is established from the CSLE model, using the geomorphological unit as the evaluation unit, and the factors of precipitation erosion force, soil erodibility, slope length and slope gradient, biological/cultivation measures and engineering measures are superimposed with the entropy value method to determine the weights respectively, and then the model is evaluated with the aid of area-elevation integral. The model was then used to analyze the sensitivity of hydraulic erosion in the study area. The results show that: (1) The evaluation factor of the hydraulic erosion sensitivity evaluation model proposed in the paper is 0.61 at the regional scale, which is relatively better than the CSLE model used as a comparative validation, so the model can be used to evaluate the hydraulic erosion sensitivity of the study area; (2) The hydraulic erosion sensitivity values among different geomorphological units are as follows: large rolling hills > floodplain > loess plateau > loess mount > middle; (3) In order to avoid damage to human life and property, the Qinglian River basin in the intersection of alluvial floodplain and mid-undulating mountains in the north and large undulating mountains in the south should be treated as a priority. The method proposed in this paper effectively solves the problem of hydraulic erosion sensitivity analysis in loess landform areas.
秦彤,李功权. 黄土地貌区水力侵蚀敏感性分析：以山西省五寨县为例[J]. 科学技术与工程, 2023, 23(30): 12850-12857.
Qin Tong, Li Gongquan. Soil erosion sensitivity analysis of yellow landform areas: Wuzhai County, Shanxi Province as an example[J]. Science Technology and Engineering,2023,23(30):12850-12857.