滇池流域地下水污染风险评价及其防控研究  

Research on groundwater pollution risk assessment and its controls in Dianchi Lake watershed

作　　者：杨莎[1] 孔维琳 董磊[1] 王崇云[1] 彭明春[1] 和兆荣[1] 

机构地区：[1]云南大学生态学与地植物学研究所,云南昆明650091

出　　处：《环境污染与防治》2012年第11期34-39,共6页Environmental Pollution & Control

基　　金：国家水体污染控制与治理科技重大专项研究课题(No.2009ZX07102-004)

摘　　要：地下水是维系水系统良性循环和支撑生态系统协调发展的重要保障。针对滇池流域水文地质特征,选择含水层介质、地形坡度、河网距离以及硝态氮单位面积污染负荷4个评价因子对地下水污染风险进行综合评价。利用层次分析法确定4个评价因子的权重并进行图层叠加分析,将地下水污染风险划分为敏感区、易污染区和一般防控区进行分区防控。最后提出防治措施,以期为水资源的优化配置和水体保护提供参考。Groundwater was important for sustaining the virtuous cycle of aquatic system and supporting the sustainable development of ecosystem. Based on the hydrological geology characteristics of Dianchi Lake watershed, we assessed the groundwater pollution risk from 4 aspects of aquifer medium,topography, distance to drainage network and average pollution load of nitrate nitrogen. Applying analytic hierarchy process （AHP） to identify the weight of four indicators,then data layers overlaying analysis were conducted to produce the sensitive map. Dianchi Lake water- shed was divided into three areas for groundwater pollution risk, namely, sensitive zones, vulnerable zones and common control zones. Finally, prevention and control measurements were recommended and discussed to optimize water re- sources and abate water pollution.

关 键 词：滇池流域 地下水 污染风险 层次分析法 防治措施 

分 类 号：X820.4[环境科学与工程—环境工程] X523