北京温榆河公园湿地示范区水土流失及防治措施效果分析

Control efficiency analysis of soil and water conservation measures in the wetland restoration demonstration area of Beijing Wenyuhe Park

为更好地指导北京温榆河公园建设,以公园内约2 km^(2)的湿地示范区作为研究区域,对研究区建设期内水土流失监测情况、水土流失预测和防护措施情况进行对比分析。温榆河公园湿地示范区工程建设期间扰动地表类型分为2大类型6种表现方式,水土流失具有以水力侵蚀为主、时段性和分区域差异大等3个主要特点,在工程建设过程中采用的水土保持综合措施效果明显,有效预防了水土流失,经济效益、生态效益显著。本成果对温榆河公园建设后期落实好水土保持要求起到指导和示范作用。

In order to better guide the construction of Beijing Wenyuhe Park,a wetland demonstration area of approximate 2 square kilometers was selected as the study area from this park.Data comparison and statistical analysis of soil erosion monitoring during the construction process and the evaluation of soil erosion conditions in the preliminary water impact assessment were carried out in this study area.The results showed that disturbance from surface types were divided into two main kinds with six manifestations.Soil erosion exhibited three main characteristics of hydraulic erosion as the main form,periodicity,and significant regional differences.The soil conservation measures were adopted during the construction process with obvious effects,effectively preventing soil erosion,with remarkable economic and ecological benefits.The results of this project served as a guide and demonstration for implementing soil and water conservation requirements and measures for the further construction phases of Wenyuhe Park.