嘉兴市应急地下水源选择及环境效应分析

Anticipation of Environmental Effects and Delimitation of Emergency Groundwater Sources in Jiaxing

分析了嘉兴市地下水的类型、分布、水量、水质等特征,结合城市规划、现状条件,并响应当地正常期间地下水禁止开采的政策,合理选取了应急地下水源。设计4种供水情景,利用地下水数值模型,预测应急水源启用可能产生的环境效应,对相关部门开展城市应急供水规划和保护地质环境具有指导意义。

This paper analyses the types,inflows,qualities,spatial distributions and other characteristic parameters of groundwater in Jiaxing.Combining with urban planning,current situations of development and utilization of groundwater resources and local bans on groundwater exploitation in general time,the emergency groundwater sources are delimitated rationally.Setting four kinds of groundwater supply conditions and applying the MODFLOW to predict the environmental effects while the emergency groundwater resources are enabled,which will provide a good guidance for the relevant government departments to make emergency groundwater supply planning or to develop geological environment protection strategies in the future.