干旱区地理2025，Vol.48Issue(10)：1783-1792,10.DOI:10.12118/j.issn.1000-6060.2024.568
夏季蒙古国西部地表水水质空间分布特征及评价
Spatial distribution characteristics and evaluation of surface water quality in western Mongolia in summer
摘要
Abstract
The water resources of rivers and lakes are essential for human survival and development,and their protection and sustainable use have become a global priority.In this study,rivers and lakes in western Mongolia were investigated through field surveys conducted in the summer of 2023 to evaluate water quality contamina-tion.By measuring chemical parameters,heavy metals,and comprehensive indicators,the spatiotemporal varia-tion in water quality was analyzed using the single-factor evaluation method,the comprehensive pollution index method,and the comprehensive trophic status index.The aim was to provide a scientific basis for ecological pro-tection and the region’s sustainable socio-economic development.The results showed that:(1)Surface waters in western Mongolia were alkaline,with spatial variations in different indicators.Except for Uvs Lake,Kyrgyz Lake,and the lower reaches of the Khovd River,the remaining areas complied with relevant water quality stan-dards of the world,Mongolia,and China.(2)The main pollution indicators were the permanganate index and am-monia nitrogen,with excessive organic matter primarily linked to grazing activities and domestic sewage dis-charge.(3)Significant spatial differences in lake trophic status were observed,with some lakes exhibiting severe eutrophication.Although areas with low nutrient concentrations presented a relatively small risk of eutrophica-tion,continuous monitoring of nitrogen-phosphorus ratios remains necessary.关键词
水质/水污染指数/空间变化/蒙古国Key words
water quality/water pollution indices/spatial variation/Mongolia引用本文复制引用
王思予,周宏飞,闫英杰,杨松,苏媛..夏季蒙古国西部地表水水质空间分布特征及评价[J].干旱区地理,2025,48(10):1783-1792,10.基金项目
国家重点研发计划——政府间国际科技创新合作项目(2022YFE0119400)资助 （2022YFE0119400）
