| 额济纳盆地浅层地下水演化特征与滞留时间研究 |
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| 引用本文： | 苏永红,朱高峰,冯起,常宗强,司建华,席海洋,曹生奎.额济纳盆地浅层地下水演化特征与滞留时间研究[J].干旱区地理,2009,32(4). |
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| 作者姓名： | 苏永红 朱高峰 冯起 常宗强 司建华 席海洋 曹生奎 |
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| 作者单位： | 1. 中国科学院寒区旱区环境与工程研究所,寒旱区流域水文及应用生态实验室阿拉善荒漠生态-水文试验研究站,甘肃,兰州,730000
2. 兰州交通大学,数理与软件工程学院,甘肃,兰州,730070 |
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| 基金项目： | 国家社会科学基金，国家自然科学基金 |
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| 摘 要： | 以地球化学和氚(3H)同位素测年技术相结合,通过额济纳盆地地下水、地表水地球化学及同位素的研究,探讨中国西北干旱区内陆河流域下游盆地地下水地球化学演化规律和平均滞留年龄.额济纳盆地浅层地下水状况主要受地表水补给状况的影响,离河道近的水样矿化度低;而离河道较远的戈壁区,地下水矿化度高.水体化学成分主要受岩盐、石膏、白云石等矿物的溶解及蒸发作用的影响.通过利用指数-活塞模型流模型(EPM),计算出额济纳浅层地下水年龄在13～58年之间.
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| 关 键 词： | 水化学 矿化度 氚(3H)同位素测年 地下水补给 额济纳盆地 |
Chemical evolution of shallow groundwater and the residence time in the Ejina Basin |
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| SU Yong-hong,ZHU Gao-feng,FENG Qi,CHANG Zong-qiang,SI Jian-hua,XI Hai-yang,CAO Sheng-kui.Chemical evolution of shallow groundwater and the residence time in the Ejina Basin[J].Arid Land Geography,2009,32(4). |
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| Authors: | SU Yong-hong ZHU Gao-feng FENG Qi CHANG Zong-qiang SI Jian-hua XI Hai-yang CAO Sheng-kui |
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| Institution: | SU Yong-hong1,ZHU Gao-feng2,FENG Qi1,CHANG Zong-qiang1,SI Jian-hua1,XI Hai-yang1,CAO Sheng-kui1(1 Laboratory of Watershed Hydrology and Ecology & Alashan Desert Eco-hydrology Experimental Research Station of Cold and Arid Regions Environmental and Engineering Research Institute,CAS,Lanzhou 730000,Gansu,China,2 The School of Mathematics,Physics & Software Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China.) |
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| Abstract: | Based on the geochemistry and tritium(3H) dating technology,a case study of the hydrochemistry and isotope for the surface water and groundwater in the Ejina Basin has been taken up in order to understand the shallow groundwater residence time and geochemical evolution in the arid area of northwest China.The shallow groundwater quality is mainly controlled by the surface water.The samples near the river have low TDS values with SO2-4-Mg2+ and HCO-3-Na+ types,while those far from the river bed have high TDS ... |
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| Keywords: | water chemistry total dissolved solid tritium dating technology groundwater recharge Ejina Basin |
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