兖西水源地水资源开采潜力评价

Assessment on potential mining capacity of water resources in Yanzhou West area

兖西水源地是济宁市、兖州市的重要供水源,为岩溶水系统,具有较强的恢复能力和良好的调蓄功能。水资源主要为松散岩类孔隙含水岩组和碳酸盐岩类裂隙岩溶水。目前区内实际开采量为10.66×104m3/d,采用水量均衡法估计最大可开采量为20.22×104m3/d。通过地表灌溉等增源措施,优质水开采能力可以达到23.08×104m3/d,对于提高济宁市在特枯年或连续干旱年及污染事件突发时的供水能力和饮用水安全保证程度具有重要意义。

Yanzhou West water resources area is a Karst water system in type,having a strong resilience and regulating function.The water resources are mainly composed of loose rock pore aquiferous group and carbonate rocks fractured karst aquifer.The actual extraction is 10.66×104 m3/d.The maximum exploitation through the mathematical model is 20.22×104 m3/d.Mining capacity can be upgraded to 23.08×104 m3/d by adoption of measures,such as surface irrigation,which is greatly significant for water supply and drinking water safety assurance in special dry years,or in continuous drought ages and in sudden pollution event in Jining City.