武陵山典型岩溶地区环境地质质量评价与整治建议

Assessment on environmental geological quality and renovation recommadation of the typical karst area on Wuling Mountain

通过对研究区进行1∶5万环境地质调查,查明了环境地质现状,在此基础上,选用干旱缺水、水污染、地下水疏干、岩溶塌陷、石漠化5个评价因子,以四级流域为单元,采用因子指数法进行环境地质质量评价,综合评价结果为:黔河流域和赶场溪流环境地质质量好,投溪河流域和濯河干流流域环境地质质量中等,唐岩河流域环境地质质量较差。针对性地提出了防治措施与建议,为该区各流域生态环境整治与经济建设规划提供依据。

Through conducting 1 ： 50000 environmental geological survey in the study area, the present situation of environmen- tal geology has been found out. On this basis, 5 evaluation factors including drought water shortage, water pollution, groundwater de- pletion, karst collapse and rocky desertification are selected, and the four grade watershed is taken as the unit, and the environmental geological quality evaluation is carried out by factor index method. The results of comprehensive evaluation are ： the quality of environ- mental geology in Qianhe and Ganchang Basin is good, the quality of environmental geology in Touxihe and Zhuohe Basin is moderate, and the quality of environmental geology in Tangyanhe Basin is poor. The prevention measures and suggestions are put forward, which can provide the basis for the ecological environment improvement and economic construction planning of each river basin.