哈尔滨市及周边地区地下水易污性评价

Assessment of the groundwater vulnerability in Harbin and the vicinity

在哈尔滨城市地质调查项目实测的地质、水文地质资料的基础上,利用DRASTIC方法,选择地下水埋深、净补给量、含水层介质、包气带影响等7个参数作为评价指标,建立哈尔滨地区地下水易污性评价体系,编制哈尔滨地区地下水易污性分区图。研究表明,哈尔滨地区地下水易污性较高的区域占17.1%,主要分布在松花江两岸,为地下水污染的高风险地区,应列为地下水资源管理重点防护区域。

Using the DRASTIC method,which is widely used around the world,we choose 7 parameters,such as depth to water table,net recharge,aquifer media,vadose zone and other factors,as evaluated index and set up the groundwater vulnerability evaluation system of Harbin area based on geological and hydrological data of the study area.We compile the subarea map of groundwater vulnerability of Harbin.The results indicate that 17.1 percent of the city region are of high vulnerability,which mainly occur along the Songhua River.This area has the highest risk for water pollution,and can be considered as the key protection region.