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Title:: Analysis on the Recharge Sources of Groundwater in Jiangchuan Yucun Well,Yunnan

Author(s):: HU Xiaojing¹; FU Hong¹; LI Libo¹; LI Xiang²; (1. Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)(2. Earthquake Administration of Jiangchuan County,Yuxi 652600,Yunnan,China)

摘要:: 基于水化学特征,结合井下电视探视和区域地下水相关性分析,研究了云南江川渔村井的地下水循环状态与补给来源。结果表明:渔村井地下水补给主要是大气降水,水体中存在一定的水-岩相互作用成分,地下水循环深度较大,因此目前渔村井水质成分所揭示的是地表雨水渗入与深部水-岩相互作用的结果; 该井与其东侧约1.5 km处的星云湖水面高程之间有一定的相关性,但不存在明显的水力联系或者补给关系; 其周边其他水体都以典型的浅层水文循环特征为主,且存在一定的旱季蒸发作用,其中,星云湖与渔村大河不仅具有相同的物质来源,而且蒸发作用也比较类似,可确认这2处水体不是渔村井的补给源。

Abstract:: Based on the analysis of hydro-geochemical characteristics and combined with the exploration result by underground-TV and correlation analysis of regional groundwater,we investigated the groundwater circulation condition and recharge sources in the Yucun well. The results show that,the recharge sources of groundwater in the Yucun well were mainly from atmospheric precipitation. There exited water-rock interaction components in the composition of water quality of the Yucun well,and the circulation depth of groundwater was deep. Therefore,the current composition of water quality of the Yucun well reveals the result of infiltration of surface rainwater and the interaction of deep water-rock. There was a certain correlation between the Yuncun well and the surface elevation of the Xingyun Lake about 1.5 km to its east,however,there was no obvious hydraulic connection or supply relationship. The other water surrounding the Yucun well was mainly characterized by typical shallow hydrological circulation and had some evaporation in dry season. The Xingyun Lake and the Yuncun River were not only showing same material sources,but also showing similar evaporation effects. So,it is confirmed that the two water bodies are not the supplement source of the fishing village well.