大同盆地浅层地下水水质影响因素分析

Analysis of Influence on the Shallow Groundwater Quality in Datong Basin

主要分析了降雨入渗补给、山前侧向补给、地表水入渗补给、引污灌溉的入渗补给及地下水排泄过程对大同盆地浅层地下水水质的影响。通过对盆地浅层地下水水质实测资料的分析 ,了解了这些因素综合影响着地下水水质。分析了大同盆地浅层地下水受污染原因 ,建议该地区必须控制污染源 ,同时建立和完善水环境监测体系。

This paper mainly analyses the infiltration replenishment of the precipitation,mountain side,surface water and groundwater drainage process that have effect on shallow groundwater quality of Datong Basin.Through analyzing the surveying data of shallow groundwater quality of Datong Basin,we can known that these integrating factors have reflected ground water quality. Furthermore,this paper analyses the causes of pollution of the shallow groundwater in Datong Basin: leakage of dirt rivers and sewage pouring, etc. The pollution process is that the industry deposing sewage, living sewage, and using of chemical fertilizer on farm will go along with the infiltration replenishment of the precipitation, so contamination is taken and filtered into groundwater and will bring about the pollution of groundwater. At last, this paper puts forward some proposes that, in the area, the pollution source must be controlled and, at the same time, a perfect water environment inspecting system must be set up.