鲁中南泰安纸坊泉域岩溶水强径流带成因及特征

The causes and characteristics of karst water strong run-off belts in Tai′an Zhifang spring area in central and southern parts of Shandong

近年来,鲁中南地区岩溶地下水泉水流量衰减、干涸,水源地超采,岩溶塌陷等环境地质问题日益凸显,迫切需要加强研究。以泰安纸坊泉域为例,探讨了泉域内岩溶水强径流带分布、成因类型及典型水文地质特征,以达到合理开发、保护岩溶地下水的可行性。结果表明,岩溶水强径流带是有巨大调蓄功能并发育于浅部地下水积极交替带的网络状强岩溶富水带,其地下水动态稳定,成井率高且识别特征明显,是本区岩溶水水源地开采的理想场所。研究强径流带系统的水文地质条件,掌握其规律,为进一步研究鲁中南地区岩溶地下水提供了一条有效途径。

In recent years,environmental geological problems,such as,karst groundwater spring water flow attenuation,dryness,water source over-exploitation and karst collapse,have become increasingly apparent in central and southern parts of Shandong Provinces.It is urgent to strengthen this research topic.The distribution,genetic types and typical hydrogeological characteristics of karst water strong run-off belts in the Tai’an Zhifang spring area were investigated in this study In order to achieve the feasibility of rational development and protection of karst groundwater.The results showed that the karst water strong run-off belts was a network-like strong karst water-rich zone with a large regulation function and developed in the active alternating zone of shallow groundwater.The groundwater regime was stable,with a high rate of bore formation and obvious identification characteristics.It is an ideal place for the exploitation of karst water sources in this area.Investigating the hydrogeological conditions of the strong run-off belts system and mastering its laws provided an effective way to further explore the karst groundwater in the central and southern portions of Shandong.