鲁中南水文地质区水源地防污性评价

Pollution Prevention Evaluation of Water Source in Hydrogeological Area in Central and Southern Shandong Province

摘要:

地下水防污性能评价是研究和预防地下水污染的一种有效途径，为了评价山东省鲁中南水文地质区重点地下水水源地防污性能，本文采用DRASTIC评价模型对区内112个水源地地下水防污性能进行评价研究。研究表明，区内大部分岩溶水源地和孔隙水源地防污性能处于中等以上，且岩溶水源地整体防污性能要高于孔隙水源地。岩溶水水源地防污性能具有明显的区域性特点，不同水文地质亚区岩溶水源地防污性能差异较大，且岩溶水系统功能分区是影响岩溶水源地防污性能的重要因素。孔隙水源地受含水层岩性、水位埋深，包气带厚度等因素控制，防污性能相对较差。本研究将为鲁中南水文地质区地下水资源保护划分、地下水资源合理开发利用提供科学依据。

Abstract:

Pollution prevention evaluation of water source is an effective way to study and prevent groundwater pollution. In order to evaluate the pollution prevention performance of the key groundwater sources in the central and southern Shandong hydrogeological areas, by using drastic evaluation model, pollution prevention performance of 112 groundwater sources in the area has been evaluated. It is showed that pollution prevention performance of most karst water sources and pore water sources is above medium, and the overall pollution prevention performance of karst water sources is higher than that of pore water sources. The pollution prevention performance of karst water source areas has obvious regional characteristics, and pollution prevention performance of karst water source areas varies greatly in different hydrogeological sub-regions, and the functional zoning of karst water system is an important factor affecting the antifouling performance of karst water sources. The pore water source is controlled by aquifer lithology, water depth, aeration zone thickness and other factors, so its pollution prevention performance is relatively poor. It will provide a scientific basis for the division of groundwater resources protection and the rational development and utilization of groundwater resources in hydrogeological area of central and southern Shandong province.