安定区水土保持项目效益分析

The Study on Soil and Water Conservation Project Benefits inAnding District of Dingxi City

安定区水土流失严重,阻碍当地社会经济发展。2013年,安定区实施东河项目。分类整理统计安定区东河项目各项水土保持措施数量,采用水文统计模型计算,结合成因分析法和概念物理模型法分析东河项目蓄水保土效益。结果显示,2013-2019年,安定区东河项目累计总体蓄水182.68万m^3,保土15.94万t,其中封禁治理措施蓄水效益最好,梯田措施保土效益最高。

The serious soil and water loss hinders the local social and economic development in Anding district.The Donghe project was implemented in Anding district in 2013. The number of soil and water conservation measures of the Donghe project in Anding district was classified and counted, the hydrological statistical model was used to calculate the water and soil conservation benefits of the Donghe project by combining the genetic analysis method and the conceptual physical model method. The results showed that from 2013 to 2019, the Donghe project in Anding district accumulated a total storage of 1.826,800 m^3 and soil preservation of 159,400 t, among which the water storage benefits of the measures of sealing and controlling were the best, and the soil preservation benefits of the terrterranework measures were the highest.