山东半岛蓝色经济区地下水防污性能评价

Groundwater Vulnerability Assessment in Shandong Peninsula Blue Economic Zone

摘要:

山东半岛蓝色经济区的开发建设已成为我国的发展战略。地下水防污性能反映地下水系统遭受污染的可能性，可以为土地利用规划、地下水资源保护规划、地下水水质监测等提供科学依据。该文选取DRASTIC评价方法，对山东半岛蓝色经济区地下水防污性能进行了评价。评价过程中选取地下水埋深、地下水净补给量、含水层介质、土壤介质、地形坡度、包气带介质及渗透系数等7个指标，通过对各指标因子进行赋值，确定权重，进一步划分防污性能等级。评价结果显示研究区按照防污性能等级划分标准可以分为5个区，即防污性能差区、防污性能较差区、防污性能中等区、防污性能较好区、防污性能好区，分别占总面积的0.13%,9.74%,39.76%,40.71%,9.66%。该模型的评价结果客观科学，能有效的为规划部门及地下水资源管理部门服务。

Abstract:

The development of Shandong Peninsula Blue Economic Zone has become the development strategy of our country. The groundwater vulnerability assessment reflects the possibility of groundwater pollution, which can provide scientific basis for land use planning, groundwater resources protection planning, groundwater quality monitoring and so on. In this paper, the evaluation method of DRASTIC is used to evaluate the groundwater vulnerability to pollution in Shandong Peninsula Blue Economic Zone. In the process of evaluation, seven indicators have been selected, they are groundwater depth, recharge, aquifer media, soil media, topography, impact of the vadose zone and conductivity. Through assignment of every index and determination of the weight of each index, vulnerability level has been divided. It is showed that the study area can be divided into five zones according to the vulnerability classification standards, namely poor antifouling area, low antifouling area, medium area, good antifouling, high antifouling area, which accounted for 0.13%, 9.74%, 39.76%, 40.71% and 9.66% of the total area. The evaluation result of the model is objective and scientific. It can effectively serve the planning department and the groundwater resources management department.