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中国沙漠 ›› 2011, Vol. 31 ›› Issue (6): 1617-1622.

• 水文与水资源 • 上一篇    下一篇

库姆塔格沙漠东北缘浅层地下水补给来源

李文赞1,2, 严 平1*, 刘永刚1, 丁连刚3, 俄有浩4   

  1. 1.北京师范大学 地表过程与资源生态国家重点实验室, 北京 100875; 2.北京师范大学 资源学院, 北京 100875; 3.广东省中山市实验高级中学, 广东 中山 528403; 4.中国气象科学研究院, 北京 100081
  • 收稿日期:2010-08-09 修回日期:2010-10-18 出版日期:2011-11-20 发布日期:2011-11-20

Phreatic Water Recharged Source on the Northeast of Kumtag Desert

LI Wen-zan1,2, YAN Ping1, LIU Yong-gang1, DING Lian-gang3, E You-hao4   

  1. 1.State Key Laboratory of Earth Surface Processes and Resources Ecology, Beijing Normal University, Beijing 100875, China; 2.College of Resources Sciences & Technology, Beijing Normal University, Beijing 100875, China; 3.Experimental Senior Middle School of Zhongshan City, Zhongshan 528403, Guangdong, China; 4.Chinese Academy of Meteorological Sciences, Beijing 100081, China
  • Received:2010-08-09 Revised:2010-10-18 Online:2011-11-20 Published:2011-11-20

摘要: 依据库姆塔格沙漠东北缘地表水和地下水水文、水化学和同位素相关数据,分析探讨了沙漠东北缘地下水的主要补给来源。结果表明,水体与周边流域地表水并无直接联系,主要受到南部山区贫重同位素水体的补给,但补给过程缓慢,因此,对周边地区水资源的开发非常敏感。根据地势条件和水文地质条件,祁连山沿党河洪积扇到谷地冲湖积平原可能存在一条地下水补给路径,冰雪融水和降水渗透到地下,沿党河洪积扇最终补给到疏勒河谷地。

关键词: 疏勒河谷地, 丝绸之路, 库姆塔格沙漠, 同位素, 水化学, 补给来源

Abstract: Recharge sources of the phreatic and surface water in the Sule River Valley have been investigated with hydrological, geochemical and isotopic techniques. Stable isotope compositions of shallow groundwater and surface water in the valley evolve from a starting composition which is more depleted. Waters in the valley and surface water in adjacent areas appear unconnected based on chemical composition and radiocarbon activities. Hydrogeological evidence points toward the Qilian Mountain as a recharge zone, which is consistent with the tracer results. The concentration of Tritium is very low, indicating that the age of the shallow groundwater is very old. The results also reveal that the water resources are very sensitive to the environment, which is relevant for the resources management in this ecologically sensitive area.

Key words: the Sule River valley, the Silk Road, the Kumtag Desert, isotope, hydrochemistry, recharge source

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