【摘要】 为探明西藏DG水电站建设期水土流失情况,采用无人机航测解译与现场实地调查相结合的方式对工程区的水土流失现状进行了调查分析。结果表明,DG水电站工程区水土流失类型以水力侵蚀为主,侵蚀强度级别为中度;水土流失成因既包括气候、地形地貌、植被覆盖率及地表组成物质等自然因素,亦包括生产建设活动、配套设施欠完善等人为因素;主体工程枢纽区和渣(料)场区为主要水土流失源,应作为水土保持建设的重点区域。调查与分析结果可为该区水土保持建设提供基础资料及参考。更多还原

【Abstract】 In order to ascertain the soil and water loss during the construction period of DG hydropower station in Tibet,the present situation of soil and water loss in the project area was investigated and analyzed by means of UAV aerial survey interpretation and field investigation.The results show that hydraulic erosion is the main type of soil and water loss in DG Hydropower Station,which belongs to the moderate erosion intensity level.The causes of soil and water loss include not only natural factors such as climate,topography and geomorphology,vegetation coverage and surface composition,but also human factors such as production and construction activities,imperfect supporting facilities and so on.The pivot section of main works and slag(material)field area are the main sources of soil and water loss,which should be regarded as the key areas of soil and water conservation construction.The results of investigation and analysis can provide basic data and reference for the construction of soil and water conservation in this area.更多还原