Application of DRASTIC Improved Model Based on AHP in Groundwater Vulnerability Assessment in Liaoyuan City
AHP and ArcGIS techniques were used to improve the original DRASTIC model,and groundwater vulnerability was studied by taking Liaoyuan City as an example,and the assessment results of groundwater vulnerability in Liaoyuan City were obtained.The results showed that:the overall vulnerability of groundwater was low,accounting for 60.33％;the northwest and southeast were moderately vulnerable,accounting for 17.97％;the vulnerability of the western region and the surrounding areas of the water source was high,accounting for 21.70％,which was susceptible to pollution.The improved DRASTIC model could better reflect the current situation of the study area,and could provide scientific basis and reference for groundwater pollution prevention and control in Liaoyuan City.
万方数据
维普
