基于2H&18O和水化学成分的永定河流域地下水循环特征解析

doi:10.11849/zrzyxb.2007.03.011

自然资源学报 ›› 2007, Vol. 22 ›› Issue (3): 415-423.doi: 10.11849/zrzyxb.2007.03.011

基于2H&18O和水化学成分的永定河流域地下水循环特征解析

于静洁宋献方刘相超杨聪唐常源李发东佐仓保夫近滕昭彦

1.中国科学院地理科学与资源研究所, 陆地水循环及地表过程重点实验室, 北京100101;
2.重庆交通大学水利水运工程重庆市重点实验室, 重庆400074; 3.日本千叶大学, 千叶263- 8522

收稿日期:2007-02-03 修回日期:2007-03-03 出版日期:2007-05-15 发布日期:2007-05-15
通讯作者: 于静洁( 1964- ) , 女, 研究员, 主要从事流域水文水资源、生态水文研究。 E-mail:E-mail: yujj@igsnrr.ac.cn
作者简介:于静洁( 1964- ) , 女, 研究员, 主要从事流域水文水资源、生态水文研究。
基金资助:
国家自然科学基金资助项目( 40371025, 40671034) ; 中国科学院知识创新工程项目(KXCX-SW-317) ; 重庆
交通大学水利水运工程重庆市重点实验室开放基金项目( SLK2006A02) 资助。

A Study of Groundwater Cycle in Yongding River Basin by Using δD, δ18O and Hydrochemical Data

YU Jing-jie1, SONG Xian-fang1, LIU Xiang-chao2, YANG Cong1, TANG Chang-yuan1,3, LI Fa-dong1,3, Sakura Yasuo3, Kondoh Akihiko3

1.Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources
Research, CAS, Beijing 100101, China; 2.Key Laboratory for Hydraulic and Water Transport Engineering of Chongqing City,
Chongqing Jiaotong University, Chongqing 400074, China; 3.Chiba University, Chiba 263- 8522, Japan

Received:2007-02-03 Revised:2007-03-03 Online:2007-05-15 Published:2007-05-15

摘要/Abstract

摘要： 运用环境同位素和水化学成分作为水循环研究的示踪剂, 揭示了永定河流域中下游地下水循环特征。通过现场调查并对浅层和深层地下水采样, 进行室内水化学和氢氧同位素组成测定, 分析了流域内深层和浅层地下水的氢氧同位素和水化学组成的空间分布规律和演化趋势, 揭示了流域地下水循环特征。结果表明, 降水是山前地下水的主要补给源, 地下水在接受降水的补给后经过了不同程度的蒸发作用, 山区受蒸发影响较小, 平原区较大, 尤其是平原区浅层地下水呈现出强烈的蒸发浓缩作用; 水化学特征表现为自西部山区到山前平原至滨海平原, 自浅层到深层, 地下水的矿化度逐渐升高; 平原区浅层和深层地下水含水层之间存在明显的越流补给现象; 沿海地区未发现海水入侵现象。

关键词: 地下水循环, 永定河流域, δD 和δ18O, 水化学成分

Abstract: By using environmental isotopes and hydrochemical components as tracers in surveying water circulation, this paper revealed the groundwater circulation characteristics in the Yongding River Basin.By field surveying and groundwater sampling in the shallow and deep aquifers, the hydrochemistry and hydrogen and oxygen isotope components were measured.Then the spatial distribution rule and evolvement tendency of δD and δ18O and hydrochemical components of the groundwater in the deep and low aquifers were analyzed for revealing the groundwater cycle characteristics in the Yongding River Basin.The results indicated that the main recharge source of the groundwater in the piedmont region is precipitation, and evaporation process of different degrees has undergone after groundwater recharge from rainfall in the basin. Feeble evaporation process has occurred in the mountain region and intene evaporation process in the plain region, especially intense evaporation-concentration process for the groundwater in the shallow aquifer in the plain region.The hydrochemical characteristics of the groundwater manifested that the mineralization degree of the groundwater ascends gradually from the mountain region and the piedmont plain to the seashore plain, and from the shallow aquifer to the deep aquifer.Evident inter-aquifer recharge phenomena exist between the shallow groundwater and the deep aquifer under the plain.While the phenomenon of seawater encroaching to the aquifer does not exist.

Key words: groundwater cycle, Yongding River Basin, δD 和δ18O, hydrochemistry

中图分类号:

P641.3

于静洁宋献方刘相超杨聪唐常源李发东佐仓保夫近滕昭彦
. 基于2H&18O和水化学成分的永定河流域地下水循环特征解析[J]. 自然资源学报, 2007, 22(3): 415-423.

YU Jing-jie1, SONG Xian-fang1, LIU Xiang-chao2, YANG Cong1, TANG Chang-yuan1,3,. A Study of Groundwater Cycle in Yongding River Basin by Using δD, δ18O and Hydrochemical Data[J]. JOURNAL OF NATURAL RESOURCES, 2007, 22(3): 415-423.

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基于2H&18O和水化学成分的永定河流域地下水循环特征解析

A Study of Groundwater Cycle in Yongding River Basin by Using δD, δ18O and Hydrochemical Data

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