干旱区研究2026，Vol.43Issue(6)：1192-1200,9.DOI:10.13866/j.azr.2026.06.07
策勒河山区段河水水化学与同位素特征及补给来源
Hydrochemical and isotopic characteristics and recharge sources of the Qira River in the mountainous section
摘要
Abstract
The Qira River,as the only source of surface runoff sustaining the Qira Oasis,plays a vital role in the sustainable development of the basin.To achieve rational development and ecological protection of water resourc-es in the Qira River Basin,this study employed hydrochemical analysis and hydrogen and oxygen stable isotope techniques to investigate the composition and hydrochemical types of major ions in water bodies of the Qira Riv-er Basin and to analyze the contributions of atmospheric precipitation,snow and ice meltwater,and spring water to river recharge.The results show that the hydrochemical types in the Qira River Basin are predominantly SO42--Na+-Cl-,influenced mainly by rock weathering processes.The δ18O values range from-11.42‰ to 4.19‰,and the δD values range from-51.38‰ to 35.40‰.IsoSource model analysis indicates that spring water is the prima-ry recharge source of the Qira River,accounting for an average proportion of 0.57 throughout the year,with a re-charge proportion as high as 0.77 in June.The contribution of snow and ice meltwater to river recharge increases markedly during summer,peaking at 0.47.Atmospheric precipitation also contributes to river recharge,showing a notable upward trend in May and August.The findings of this study can provide a scientific basis for water re-source management in the Qira River Basin.关键词
策勒河/水化学/稳定同位素/IsoSource模型Key words
Qira River/water chemistry/stable isotope/IsoSource model引用本文复制引用
马玉,张鹏伟,李福杰,林涛,王强,摆翔,杜梦迪..策勒河山区段河水水化学与同位素特征及补给来源[J].干旱区研究,2026,43(6):1192-1200,9.基金项目
自然资源部荒漠-绿洲生态监测与修复工程技术创新中心开放基金项目(2023KFKTA005) （2023KFKTA005）
