汉江上游金水河流域河水的化学特征  

Water Chemistry of the Jinshui River Basin in the Upper Han River

作　　者：蒋保刚[1] 闫正[1] 宋献方[2] 卜红梅[2] 程琛[1] 李庆[1] 

机构地区：[1]河北大学静电研究所,保定071000 [2]中国科学院地理科学与资源研究所,陆地水循环及地表过程重点实验室,北京100101

出　　处：《环境化学》2013年第6期980-986,共7页Environmental Chemistry

基　　金：国家自然科学基金项目(41103069)资助

摘　　要：本文以汉江上游金水河流域为研究区域,通过对大气降水、河水的水化学及氢氧稳定同位素分析,揭示河水水化学特征及其补给来源.结果表明,(1)流域内大气降水和河水的水化学类型为Ca2+-HCO3-型,主要占优势的阴阳离子分别为HCO3-和Ca2+;(2)河水水质总体表征良好,其离子、金属及微量元素和营养盐的含量较低;(3)河水的δD和δ18O关系表明,河流的主要补给来源为大气降水.The water chemistry and hydrogen and oxygen isotopes for atmospheric precipitation and river water were analyzed to display the characteristics and the supply sources of the river water in the Jinshui River basin of the upper Han River.The result showed：（1） the chemical water type of the atmospheric precipitation and the river water in the basin was Ca2＋-HCO-3 water,and the dominant cation and anion were Ca2＋ and HCO-3;（2） the water quality of the river is good,and the concentrations of ions,metals,trace elements and nutrients in the river water were low;（3） according to δD and δ18O analysis,the main supply source of the river is atmospheric precipitation.

关 键 词：金水河流域 大气降水 水化学特征 氢氧同位素 

分 类 号：X131.2[环境科学与工程—环境科学]