摘要
为了研究娘子关泉域岩溶水状况及补给运移规律,系统采集了泉域内岩溶水、地表水样品,分析测试了样品的δD、δ^(18)O值,利用氢氧同位素方法,通过分析氢氧同位素特征及其影响因素研究岩溶水的补给来源及各含水层的相互联系。研究结果表明,大气降水和河流渗漏补给是泉域内岩溶水的主要补给来源。由于大气降水的高程效应和温度效应,导致泉域内δD、δ^(18)O值存在一定的差异。由于受到强烈蒸发后的大气降水及河流渗漏水的补给,河流沿岸岩溶水的δD、δ^(18)O值相对较高。同时对娘子关泉群城西泉、五龙泉和集泉站的D和^(18)O同位素分析结果表明,城西泉水来源于近源低海拔的补给源;而五龙泉和集泉站泉水来源于深循环、远距离、较高补给高程与地表水交换弱的补给源。通过以上研究,进一步明确了娘子关泉域岩溶水的补给运移规律,为当地政府合理开发及可持续利用娘子关泉域岩溶水资源提供了理论支撑。
In order to study the recharge and transport characteristics of karst water in Niangziguan spring area,samples were systematically collected from the karst water and surface water in the area and then analyzed for their hydrogen and oxygen isotope.The hydrogen and oxygen isotope method is used to analyze the characteristics of hydrogen and oxygen isotopes and their influencing factors.The paper studies the source of the recharge of the karst water and the interrelation of the aquifers.The results show that,the precipitating water and river seepage is the main recharge source of karst water in spring area.Due to the elevation and temperature of atmospheric precipitation,there is a difference between δD and δ^18O in spring region.Because of the recharge of the atmospheric precipitation after intense evaporation and river seepage,the δD and δ^18O are relatively high.By analyzing the δD and δ^18O isotopes in the Chengxi spring,Wulong spring and Jiquanzhan spring,the studies show that the Chengxi spring karst water originates from the near and low elevation recharge source;however,the Wulong spring and Jiquanzhan spring karst water is derived from deep circulation in a long distance,with high recharge level and weak supply of surface water exchange.This study further clarifies the supply and transport disciplinarian of karst water,and provides theoretical support for the local government for the reasonable development policy and sustainable utilization of water resources in Niangziguan karst spring.
作者
赵春红
梁永平
卢海平
唐春雷
申豪勇
Zhao Chunhong;Liang Yongping;Lu Haiping;Tang Chunlei;Shen Haoyong(Institute of Karst Geology,CAGS/Key Laboratory of Karst Dynamics,MLR ＆ GZAR,Guilin Guangxi 541004,China)
出处
《地质科技情报》
CSCD
北大核心
2018年第5期200-205,共6页
Geological Science and Technology Information
基金
国家自然科学基金项目(41672253)
国家重点研发计划(2017YFC0406104)
中国地质调查局地质调查项目(DD20160242
12120114019101
DD20160324)
关键词
氢氧同位素
岩溶水
娘子关泉域
hydrogen and oxygen isotopes
karst water
Niangziguan spring area
