黑河流域浅层地下水防污性能评价  

Evaluation of Anti-fouling Performance of Shallow Groundwater in Heihe River Basin

作　　者：李克祖 王金哲[2] 刘学全[2] 宋淑红[2] 孟令群[2] LI Ke-zu , WANG Jin-zhe, LIU Xue-quan(1. Institute of Hydrogeology and Engineering Geology of Gansu Bureau of Geology and Mineral Exploration and Development, Key Laboratory of Groundwater Engineering and Geothemal Resources in Gansu Province, Zhangye, Gansu 734000 ;2. Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, Hebei 050061)

机构地区：[1]甘肃省地矿局水文地质工程地质勘察院甘肃省地下水工程及地热资源重点实验室,甘肃张掖734000 [2]中国地质科学院水文地质环境地质研究所,河北石家庄050061

出　　处：《安徽农业科学》2018年第13期61-64,103,共5页Journal of Anhui Agricultural Sciences

基　　金：国家地质调查项目(12120114056301);国家科技研发计划课题(2017YFC0406106)

摘　　要：[目的]确定黑河流域不同地区浅层地下水的防污性能状况,对不同区位的地下水污染设防情况给出建议。[方法]采用DRASTIC模型,选择地下水位埋深、包气带综合岩性、含水层岩性、地下水净补给量、水力传导系数和地形梯度6个评价因子,构建区域浅层地下水防污性能评价指标体系,进行黑河流域平原区浅层地下水系统防污性能评价。[结果]浅层地下水防污性能差和较差区占平原区面积的52.2%,主要分布在山前倾斜平原和沿河道地带;防污性能好和较好区占平原区面积的17.4%,主要分布在各盆地的中部区域;防污性能中等区占平原区面积的30.4%,分布在评价区的剩余地区。[结论]黑河流域的整体防污性能较差,尤其南部山前平原和河道带。[Objective] The research aimed to determine the status of anti-fouling performance of shallow groundwater in different regions of the Heihe River Basin,and give advice on groundwater pollution protection in different locations.[Method]Using DRASTIC model,choosing six evaluation factors such as groundwater depth,lithological characters of vadose zone and aquifer,net recharge,hydraulic conductivity and topography,an evaluation index system for regional shallow groundwater anti-fouling performance was built,in order to evaluate the anti-fouling performance of the shallow groundwater system in the plain area of Heihe River Basin.[Result]Around 52. 2% of the plain groundwater basin was under low or moderately low vulnerable zones which were dominant and mainly located in the piedmont area or along the river channel. About 17. 4% of the total study area was under moderately high or high vulnerable zones,these areas were mainly in the central place of Heihe River Basin. 30. 4% of the plain groundwater basin was under the moderate vulnerable zones which distribute in the remaining regions.[Conclusion]The overall shallow groundwater vulnerability is poor in Heihe River Basin,especially the southern plains and river zones.

关 键 词：黑河流域 浅层地下水 防污性能 评价分区 

分 类 号：S181[农业科学—农业基础科学]