Arid Zone Research ›› 2022, Vol. 39 ›› Issue (2): 429-435.doi: 10.13866/j.azr.2022.02.10

• Water Resources and Utilization • Previous Articles     Next Articles

Study on the hydraulic connection between the Sugan Lake Wetland and the Kuitunnuoer Wetland

LI Pingping1(),WANG Xiaodan2,CHEN Hailong1   

  1. 1. Gansu Province Key Laboratory of Groundwater Engineering and Geothermal Resources, Geological Environment Monitoring Institute of Gansu, Lanzhou 730050, Gansu, China
    2. Institute of Hydrologic and Engineering Geologic Survey, Gansu Province Bureau of Geology and Mineral Exploration and Development, Zhangye 734000, Gansu, China
  • Received:2021-10-19 Revised:2022-01-07 Online:2022-03-15 Published:2022-03-30

Abstract:

The Sugan Lake Wetland and Kuitunnuoer Wetland selected as the research objects are located in the Sugan Lake Basin in the Northwest of the Qaidam Basin. Technologies and methods of hydrogen and oxygen isotope, groundwater dynamics, geophysical exploration and remote sensing interpretation were used to study the hydraulic connection between the Sugan Lake Wetland and the Kuitunnuoer Wetland. The results showed that the groundwater of the Sugan Lake Wetland was mainly supplied by atmospheric precipitation and lateral runoff. In contrast, the meltwater from the Altun Mountains glacier supplied that of the Kuitunnuoer Wetland through underground runoff. Furthermore, the alluvial fans of Qingshigou between the Sugan Lake Wetland and the Kuitunnuoer Wetland have faults that behave as aquicludes, which is a different hydrogeological unit and has no underground hydraulic interaction. Therefore, the research results provide a theoretical basis and scientific support for the sustainable development and usage of water resources in the basin.

Key words: hydrogen and oxygen isotopes, groundwater dynamics, geophysical exploration, hydraulic interaction, Sugan Lake Wetland, Kuitunnuoer Wetland