| 湖南保靖县白岩洞地下河流域水文地球化学特征研究 |
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| 引用本文： | 何师意,裴建国,谢运球,张美良.湖南保靖县白岩洞地下河流域水文地球化学特征研究[J].中国岩溶,2006,25(3):187-194. |
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| 作者姓名： | 何师意 裴建国 谢运球 张美良 |
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| 作者单位： | 1. 中国地质大学(武汉),湖北,武汉,430074;中国地质科学院岩溶地质研究所,广西,桂林,541004
2. 中国地质科学院岩溶地质研究所,广西,桂林,541004 |
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| 基金项目： | 国家自然科学基金;地质大调查项目 |
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| 摘 要： | 白岩洞地下河系统工程主要是解决保靖县城供水水源问题。本文通过三个时段的大量野外实测数据,分析了白岩洞地下河流域内岩溶泉、地表水体和地下河水的岩溶水文地球化学特征及其动态变化。结果显示,该流域内岩溶泉可分为两个主要类型,一类是与深循环有关、沿区域断层带分布,其水文、水化学动态相对稳定,水化学变化受深源CO2浓度控制;另一类为岩溶表层带泉,受地表环境、降雨量影响大,水化学动态变化较大。而地下河及其支流水的水化学变化特征介于表层带岩溶泉和地表水之间,其三个时段的变化规律跟表层带泉相似,主要水化学指标枯季(12月)>雨季1(次年4月)>雨季2(次年7月),说明明显受降雨的稀释作用控制。
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| 关 键 词： | 水文地球化学特征 地下河开发 白岩洞 湖南保靖 |
| 文章编号： | 1001-4810（2006）03-0187-08 |
| 收稿时间： | 2006-05-26 |
| 修稿时间： | 2006年5月26日 |
STUDY ON HYDROGEOCHEMICAL FEATURES OF THE BAIYANDONG UNDERGROUND RIVER CATCHMENT IN BAOJING COUNTY, HUNAN |
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| HE Shi-yi,PEI Jian-guo,XIE Yun-qiu and ZHANG Mei-liang.STUDY ON HYDROGEOCHEMICAL FEATURES OF THE BAIYANDONG UNDERGROUND RIVER CATCHMENT IN BAOJING COUNTY, HUNAN[J].Carsologica Sinica,2006,25(3):187-194. |
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| Authors: | HE Shi-yi PEI Jian-guo XIE Yun-qiu and ZHANG Mei-liang |
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| Institution: | 1. China University of Geosciences, Wuhan, Hubei 430074,China ; 2. Institute of Karst Geology, CAGS, Guilin, Guangxi 541004, China |
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| Abstract: | The project of Baiyandong underground river system aims at resolving the potential water supply for Baojing county.Based on a large number of field measured hydrochemical data,this paper gives a brief analysis on the features and dynamic changes of the karst spring water,surface water and underground river water.The results reveal that there are two kinds of karst spring waters within the catchment.One of them is related to deep source CO_2and distributes along with the regional faults,and their main hydrochemical indexes are controlled by CO_2concentration.Another is epikarst spring water that is greatly influenced by surface environment and rainfall,and the dynamical change of their hydrochemical indexes is obvious in three different measuring periods.The features of hydrochemical indexes of the water in main underground conduit and its branches are in the interposition between the epikarst spring water and the surface water. The data show that the HCO~-_3,Ca~(2 ) and Mg~(2 ) content,electric conductivity,and so on are controlled by the diluting processes of rainfall,that is,the more the rainfall the low the concentrations of the indexes.Moreover,methods often used in the study on karst dynamic systems and also applied in this research have solved some practical problems. |
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| Keywords: | Hydrogeochemical feature Development of underground river Baiyandong Baojing Hunan |
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