From the perspective of water conservancy construction, taking the Yellow River Basin as the research object, the efficiency of soil erosion control is calculated with the DEA-BBC model and its key influencing factors are analyzed with the Catboost model. The research results indicate that 1) water conservancy construction is closely related to soil erosion control and economic development, and water conservancy construction generates significant environmental and economic benefits. 2) The efficiency of soil erosion control is ideal in the upper and middle reaches of the Yellow River, but needs improvement in Henan and Shandong provinces in the lower reaches. In the non-DEA effective state, scale returns increase in Henan and decrease in Shandong. 3) Population, agricultural development, environmental investment and construction, and precipitation are key influencing factors for soil erosion control efficiency in the Yellow River Basin.

water conservancy construction perspective, Yellow River basin, efficiency of soil erosion control; DEA-BBC model, Catboost model

基于水利建设视角, 以黄河流域为研究对象, 使用DEA-BBC模型对水土流失治理效率进行测算, 并采用Catboost模型对其关键影响因素进行分析。研究结果表明: 1) 水利建设与水土流失治理和经济发展密切相关, 水利建设产生较大的环境效益与经济效益; 2) 黄河上游和中游地区水土流失治理效率理想, 而黄河游地区的河南和山东省水土流失治理效率有待提升, 河南在非DEA有效状态下规模报酬递增, 山东在非DEA有效状态下规模报酬递减; 3) 人口因素、农业发展因素、环境投资建设因素以及自然因素中的降水量是黄河流域水土流失治理效率的关键影响因素。