摘要
本文以新疆喀什地区183组地下水水质资料为基础,运用Piper三线图、因子分析、Gibbs图、饱和指数、离子比值等方法来分析地下水碘的分布特征及成因.结果表明,研究区地下水碘的匮乏与富集并存,I−含量范围为未检出—1460.0μg·L^(−1);在碱性、偏还原性和富含有机质的水环境中,矿物中的碘容易以I−的形式进入到地下水中,沿地下水流向,I−逐渐从山前倾斜冲洪积平原区,向中下游河流冲积平原区富集;研究区地下水中碘主要受强烈的蒸发浓缩作用、阳离子交换作用和矿物溶解沉淀的影响.
Based on the test results of 183 groups of groundwater quality in Kashi prefecture of Xinjiang,Piper trilinear diagram,factor analysis,Gibbs diagram,saturation index and ion ratio were used to analyze the distribution characteristics and causes of groundwater iodine.The results showed that iodine deficiency and iodine enrichment coexist in groundwater.The range of I−varied from undetected to 1460.0μg·L^(−1).Alkaline,partially reductive and organic-rich environment was likely to cause the iodine occured on minerals to enter the groundwater in the form of I−.Along the flow of groundwater,the I−gradually accumulated from the mountain front alluvial plain to the river alluvial plain of the middle and lower reaches.In addition,the iodine in groundwater was mainly affected by strong evaporation and concentration,cation exchange,mineral dissolution and precipitation.
作者
闫志雲
曾妍妍
周金龙
孙英
YAN Zhiyun;ZENG Yanyan;ZHOU Jinlong;SUN Ying(College of Water Conservancy and Civil Engineering,Xinjiang Agricultural University,Urumqi,830052,China;Xinjiang Hydrology and Water Resources Engineering Research Center,Urumqi,830052,China;Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention,Urumqi,830052,China)
出处
《环境化学》
CAS
CSCD
北大核心
2022年第12期4077-4086,共10页
Environmental Chemistry
基金
新疆维吾尔自治区自然科学基金(2019D01B18)
国家自然科学基金(42067035)
新疆维吾尔自治区高校科研计划项目(XJEDU2018Y020)
新疆农业大学水利工程重点学科项目(SLXK2019-10)资助.
关键词
地下水
碘
因子分析
喀什地区
groundwater
iodine
factor analysis
Kashi Prefecture
