摘要
在分析博尔塔拉河水文特征的基础上,对水化学进行了系统的分析,研究结果表明:博尔塔拉河的矿化度和总硬度等主要离子含量沿程均有不同程度的增加,上游到中游增幅不大,中游到下游开始呈直线上升,下游矿化度和总硬度分别超过1000mg/L和250mg/L,主要离子含量也增加明显,其变化特征与矿化度基本一致。上中游河段阴离子中以HCO3-占优势,阳离子中以Ca2+为主;下游河段阴离子中以SO42-占优势,阳离子中以Na+为主。水化学类型由上游向下游过渡变化的分带特征:从上游、中游到下游河水水化学特征依次主要表现为HCO3-型、HCO3-—SO42-型和SO42-型。
Based on the analysis of the hydrology characteristics in Boertala River, analyzed its hydrochemistry systematically, the results showed that the salinity, the total hardness and other major ion content of Boertala River were all increased in varying degrees, the amplitude wasn＇t large along the upper reach to the middle reach of River, and in the lower reach of River, the salinity and the total hardness exceed 1000 mg/L and 250mg/L respectively, the major ion concentration increased significantly, its variety characteristics was consistent basically with the mineralization degree. In the upper and middle reaches, HCO3- dominated in the anion and Ca^2＋ gave priority to the cation; in the lower reach, SO4^2- dominated in the anion and Na＋ gave priority to the cation. Types of hydrochemistry presented the transitional zone with variation features： its main features were HCO3-type, HCO3 --SO4^2-type and SO4^2-type in turn the upper reach, the middle reach and the lower reach of Boertala River.
出处
《沙漠与绿洲气象》
2007年第6期10-13,共4页
Desert and Oasis Meteorology
关键词
水化学类型
矿化度
总硬度
博尔塔拉河
hydrochemistry type
mineralization degree
total hardness
Boertala River
