摘要
为研究浐河流域汛期地表水水化学特征及离子来源,完善区域水资源管理合理化的建议,共采集浐河流域地表水样10份,结合空间分布图、Piper三角图、Gibbs图、离子相关分析等方法,分析了浐河流域水化学特征、空间差异特征、主要离子来源及控制因素。结果表明:①浐河流域汛期水体整体呈弱碱性,TDS均值低于同流域枯水期均值但高于全球河流均值。②优势阳离子为Ca^(2+)和Na^(+),优势阴离子为HCO_(3)^(−),水化学类型以Na-HCO_(3)为主,整体上主要离子含量呈现ES低WN高的趋势。③浐河流域主要受硅酸盐岩风化的控制作用,且存在受蒸发岩溶解影响的情况。同时,本研究也为开采和保护源头水、发展用于工业的中游水,警惕下游水发生污染事件,合理利用水资源,解决西安缺水问题等方面提供参考。
In order to study the water chemistry characteristics and ion sources of surface water in the Chan River basin during the flood season and to add suggestions to rationalize local water resources management,a total of 10 surface water samples were collected from the Chan River basin and combined with spatial distribution maps,Piper triangles,Gibbs plots and ion correlation analysis to analyze the water chemistry characteristics,spatial variation characteristics,major ion sources and controlling factors in the Chan River basin.The results show that the Chan River basin is weakly alkaline during the flood season,with mean TDS values lower than the mean values during the dry season in the same basin but higher than the global river mean values.The dominant cations are Ca^(2+)and Na^(+),the dominant anion is HCO_(3)^(−),and the water chemistry type is dominated by Na-HCO_(3),with an overall trend of low southeast to high northwest content of the major ions.The Chan River basin is mainly controlled by the weathering of silicate rocks and is subject to the influence of evaporite dissolution.In order to address the water shortage issue in Xi'an,we must simultaneously exploit and safeguard source water,develop midstream water for industrial use,prevent pollution events in downstream water,and utilize water resources intelligently.
作者
朱娅娣
王瑞媛
李东泽
许志平
孙康
ZHU Yadi;WANG Ruiyuan;LI Dongze;XU Zhiping;SUN Kang(School of Geography and tourism,Shaanxi Normal University,Xi’an 710119,Shaanxi,China)
出处
《西北地质》
CAS
CSCD
北大核心
2024年第2期254-261,共8页
Northwestern Geology
基金
陕西省博士后科学基金“浐河流域黄土次生碳酸盐的溶蚀过程与碳汇效应”(2016BSHEDZZ27)
西安市科技局软科学项目“绿色发展理念下秦岭北麓矿山生态环境破坏的精细化识别与创新修复模式研究”(22RKYJ0039)联合资助。
关键词
浐河流域
汛期
水化学特征
控制因素
离子来源
Chan River Basin
flood season
hydrochemical characteristic
control factors
ion source
