济南岩溶泉域地下水水质监测

Groundwater quality monitoring in the Jinan karstic spring basin

基于GIS手段,利用欧洲方法编制的济南泉域岩溶含水层易污性评价图显示,济南泉域岩溶含水层总体易污性强,地下水容易受到污染。结合泉域污染源调查结果以及地下水补给、径流、排泄系统与水质监测网的现状,设计了51个监测点组成的地下水水质监测网,其中地表水监测点6个,第四系孔隙水监测点8个,变质岩裂隙水监测点1个,泉水监测点4个,岩溶水水源地监测点6个,岩溶地下水监测点26个,并对其监测频率及监测内容进行了分析。

The European approach was used to assess groundwater vulnerability to pollution in the Jinan karstic spring basin. The GIS-based mapping of vulnerability shows that the karst groundwater aquifers are very vulnerable to pollution. Based on the vulnerability map, the distribution of pollution sources, groundwater recharge and discharge characteristics and the present groundwater quality monitoring wells, an integrated groundwater quality monitoring network was designed. The network consists of 51 monitoring locations, of which 6 for surface water, 8 for the Quaternary aquifer, 1 for the fracture rock aquifer, 26 for the regional karstic groundwater, 4 for spring discharges, and 6 for wellfields. Sampling frequency should be increased to 4 times pear year for surface water, spring discharge and wellfields monitoring, 2 times per year for others.