指示娘子关泉群水动力环境的水化学—同位素信息分析

本文依据宏量组分、微量元素和氢氧同位氧组成监测资料，分析了娘子关泉群水动力环境及其水文地质演化趋势。除国家和城西泉主要排泄局部流动系统的地下水外，其它各泉均为不同空间尺度流动系统地下水混合、排泄之产物。在人类活动影响下，娘子关泉群水质恶化，流量衰减，水帘洞、程家泉断流，城西、坡底泉也面临断流之危险。目前抽取的水帘洞泉的水资源量组成已与五龙泉和苇泽关泉相似，以区域和中间流动系统地下水为主。

Analysis on hydrochemical-isotopic information indicating the hydrodynamic conditions of the Niangziguan karst springs

Based on monitoring data about major components, trace elements and hydrogen and oxygen isotopic compositions,this paper discusses the hydrodynamic conditions of the Niangziguan Karst Springs and their tendency of hydrogeologic evolution. Except the Chengjia Spring and the Chengxi Spring which discharge groundwater mainly from local groundwater flow systems,the rest of the springs are the result of mixing and discharge of groundwater from flow systems of different spatial scales. Under the influence of anthropogenic processes, deterioration of water qualit y and at tenuation of total discharge have taken place, The Shuiliandong and the Chengjia Spring no longer outflow, and the Chengxi Spring and the Podi Spring are endangered by being dry. In view of water resource composition,the water withdrawn by wells on the site of the past Shuiliandong Spring is genetically similar to the Wulong Spring and the Weizeguan Sping,which mainly discharge groundwater from regional and intermediate flow systems.