摘要
以和田河流域绿洲区地下水污染调查数据为基础,运用统计分析法、Gibbs图和水文地球化学模拟等方法对该区地下水中氟的含量水平、分布特征、影响因素及形成过程进行分析。结果表明:和田河流域绿洲区地下水中氟含量偏高,变化范围为0. 22-5. 80mg/L,平均含量为1. 50mg/L。水平方向上高氟水集中分布在玉龙喀什河和喀拉喀什河之间以及绿洲边缘;垂直方向上浅层潜水中氟含量普遍高于中深层潜水。绿洲区含水介质中大量的含氟矿物是地下水中氟的主要来源;地下水偏碱性、高TDS、HCO_3^-含量偏高等化学特征为氟的迁移与富集提供了良好条件;高氟地下水的形成是强烈的蒸发浓缩作用、矿物的溶解-沉淀作用、阳离子交替吸附作用等水文地球化学过程共同作用的结果。
Based on groundwater pollution survey data from the oasis area of Hotan river basin,the statistical analysis,Gibbs diagram and hydrogeochemical modeling were applied to study the fluorine content,distribution characteristics,influence factors and formation process in groundwater.The results showed fluorine content in groundwater ranges from 0.22 to 5.80 mg/L,at an average of 1.48 mg/L.In the horizontal direction,high-fluorine water mainly distributes at the edge of the oasis and between the two rivers( Yurungkash River and Qarakash River).In the vertical direction,the fluorine content in shallow unconfined groundwater is higher than that in middle-deep unconfined groundwater.Fluorine in groundwater primarily comes from the fluorine minerals in aqueous medium.The favorable conditions of fluorine transformation and enrichment include: weakly alkaline,high TDS and the high content of HCO3^-.The mineral dissolution and precipitation,evaporation and ion exchange are the dominant processes of high-fluorine groundwater in oasis area of Hotan river basin.
作者
李玲
周金龙
齐万秋
陈锋
曾妍妍
陈云飞
LI Ling;ZHOU Jinlong;QI Wanqiu;CHEN Feng;ZENG Yanyan;CHEN Yunfei(College of Hydraulic and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China;Xinjiang Institute of Engineering,Urumqi 830023,China;Xinjiang Hydrology and Water Resources Engineering Research Center,Urumqi 830052,China;No.2 Hydrogeology and Engineering Geology Party of Xinjiang Bureau of Geology and Mineral Resources Exploration and Development,Changji 831100,China)
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2019年第1期112-118,共7页
Journal of Arid Land Resources and Environment
基金
中国地质调查局西北地区主要城市地下水污染调查评价项目(1212011220982)
新疆自治区高峰学科-水利工程学科基金(xjslgcgfxk20161103)资助
关键词
和田河流域
绿洲区
地下水
氟
Hotan river basin
oasis area
groundwater
fluorine
