中国地理科学(英文版) ›› 2009, Vol. 19 ›› Issue (4): 357-364.doi: 10.1007/s11769-009-0357-9

• 论文 • 上一篇    下一篇

Chemical and Isotopic Approach to Groundwater Cycle in Western Qaidam Basin, China

TAN Hongbing1,2, RAO Wenbo1,2, CHEN Jiansheng1, SU Zhiguo1, SUN Xiaoxu1, LIU Xiaoyan1   

  1. 1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;
    2. Department of Earth Science and Engineering, College of Civil Engineering, Hohai University, Nanjing 210098, China
  • 收稿日期:2009-02-12 修回日期:2009-06-11 出版日期:2009-11-07 发布日期:2009-11-28
  • 通讯作者: RAO Wenbo.E-mail:whz0803@hhu.edu.cn E-mail:whz0803@hhu.edu.cn
  • 基金资助:

    Under the auspices of National Natural Science Foundation of China (No.40603007)

Chemical and Isotopic Approach to Groundwater Cycle in Western Qaidam Basin, China

TAN Hongbing1,2, RAO Wenbo1,2, CHEN Jiansheng1, SU Zhiguo1, SUN Xiaoxu1, LIU Xiaoyan1   

  1. 1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;
    2. Department of Earth Science and Engineering, College of Civil Engineering, Hohai University, Nanjing 210098, China
  • Received:2009-02-12 Revised:2009-06-11 Online:2009-11-07 Published:2009-11-28
  • Supported by:

    Under the auspices of National Natural Science Foundation of China (No.40603007)

摘要:

Due to the extremely arid climate in the western Qaidam Basin,the groundwater almost becomes the single water source for local residents and industrial production.It is necessary to know the reliable information on the groundwater cycle in this region for reasonable and sustainable exploitation of the groundwater resources with the further execution of recycling economy policies.This study focused on the recharge,the flow rate and the discharge of groundwater in the western Qaidam Basin through investigations on water chemistry and isotopes.Hydrological,chemical and isotopic characteristics show that the groundwater in the western Qaidam Basin was recharged by meltwater from new surface snow and old bottom glaciers on the northern slope of the Kunlun Mountains.In addition,the results also prove that the source water is enough and stable,and the rates of the circulation and renewal of the groundwater are relatively quick.Therefore,it can be concluded that the groundwater resources would guarantee the regional requirement if the meltwater volume of the mountains has not a great changes in future,moreover,water exploitation should be limited to the renewable amount of the groundwater reservoir in the western Qaidam Basin.

关键词: groundwater cycle, water chemistry, isotope, Qaidam Basin

Abstract:

Due to the extremely arid climate in the western Qaidam Basin,the groundwater almost becomes the single water source for local residents and industrial production.It is necessary to know the reliable information on the groundwater cycle in this region for reasonable and sustainable exploitation of the groundwater resources with the further execution of recycling economy policies.This study focused on the recharge,the flow rate and the discharge of groundwater in the western Qaidam Basin through investigations on water chemistry and isotopes.Hydrological,chemical and isotopic characteristics show that the groundwater in the western Qaidam Basin was recharged by meltwater from new surface snow and old bottom glaciers on the northern slope of the Kunlun Mountains.In addition,the results also prove that the source water is enough and stable,and the rates of the circulation and renewal of the groundwater are relatively quick.Therefore,it can be concluded that the groundwater resources would guarantee the regional requirement if the meltwater volume of the mountains has not a great changes in future,moreover,water exploitation should be limited to the renewable amount of the groundwater reservoir in the western Qaidam Basin.

Key words: groundwater cycle, water chemistry, isotope, Qaidam Basin