Arid Zone Research ›› 2021, Vol. 38 ›› Issue (3): 600-609.doi: 10.13866/j.azr.2021.03.02

• Water Resources and Ulilization • Previous Articles     Next Articles

Hydrochemical characteristics and their influence on rivers in the Western part of the Tianshan Mountains, Xinjiang, China

Maerhubai Yasheng1,2(),MA Long2,3,4,Jilili Abuduwaili2,3,4(),ZHANG Weiyan2,3,4   

  1. 1. School of Geographical Science and Tourism, Xinjiang Normal University, Urumqi 830054, Xinjiang, China
    2. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, Xinjiang, China
    3. Research Center for Ecology and Environment of Central Asia, Chinese Academy of Sciences, Urumqi 830011, Xinjiang, China
    4. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2020-03-26 Revised:2020-10-25 Online:2021-05-15 Published:2021-06-17
  • Contact: Abuduwaili Jilili E-mail:493768217@qq.com;jilil@ms.xjb.ac.cn

Abstract:

We analyzed the composition of constant ions in two primary rivers in the western section of the Tianshan Mountains: Ili River and Bortala River. Statistics and graphical illustration of water chemistry were used to examine the characteristics of water chemistry and their influence on these rivers. The water environment in the western section of the Tianshan Mountains was assessed to evaluate the irrigation suitability of the two rivers. Research results: The water bodies of the Ili River and Bortala River are weakly alkaline, with pH values of 8.01 and 8.55, respectively, and their primary ion concentrations were in the same order. Among them, cation Ca2+>Na+>Mg2+>K+ and anion HCO3->SO42->Cl-. A Piper classification diagram shows that the water chemistry type is HCO3—Ca·Mg. The macro ions in the water bodies of the Ili River and Bortala River are primarily affected by the weathering of rocks. Ninety-three percent of the water samples had excellent water quality, indicating that the irrigation adaptability of the Bortala and Ili Rivers is suitable for irrigation. The research results are of substantial significance to the assessment of the water environment in the western section of the Tianshan Mountains and the sustainable use of water resources.

Key words: Tianshan Mountains, Ili River, Bortala River, hydrochemical characteristics, irrigation suitability