云南省水富县大峡谷温泉岩溶承压水补给量分析计算

Analysis and calculation of karst confined water recharge:A case study of thermal spring in Daxiagu in Shuifu County,Yunnan Province

通过水文地质调查、同位素、水化学等分析方法对云南省水富县大峡谷温泉岩溶承压水的来源补给区进行定性分析,采用降水入渗补给系数法、地下水总补给模数法对补给区的岩溶地下水资源总量进行定量计算,利用水量平衡原理计算岩溶承压水的补给量。结果表明:温泉补给区主要是五角堡,补给源为大气降水,补给区多年平均地下水总量为621万m3,流量为0.20 m3/s。岩溶承压水分析计算为该区域的水资源开发、利用和保护提供依据。

Through hydrogeological surveys, isotopes, and water chemistry analysis, the supply sources of thermal spring karst confined water recharge zones in Shuifu County, Yunnan Province were analyzed qualitatively. Using the precipitation recharge coefficient method and the groundwater recharge module of the total supply method, the total underground water resources in karst areas were estimated quantitatively. The water balance principle was employed to calculate the water volume supplying karst confined water. The results showed that Wujiaobao was the main supply zone, and the water supply was recharged by precipitation. The long-term average groundwater resources were 6.21× 10^6 m3, and the recharge discharge was 0.20 m3/s. The results provided the basis for the development, utilization, and protection of water resources.