汤旺河下游水域主要离子组成及时空变化特征  

Major ions composition and spatiotemporal variation of water in Tangwang River

作　　者：王飞[1,2] 战培荣[2,3] 刘伟[2] 王继隆[2] 应承[1,2] 王臣[1,2] 

机构地区：[1]上海海洋大学水产与生命学院,上海201306 [2]中国水产科学研究院黑龙江水产研究所,哈尔滨150070 [3]农业部黑龙江流域渔业生态环境监测中心,哈尔滨150070

出　　处：《淡水渔业》2015年第5期41-45,共5页Freshwater Fisheries

基　　金：农业部财政专项物种资源保护项目(2010-2014);哈尔滨市科技局优秀学科带头人项目(2010RFXYNO47);湖泊水库养殖容量及生态增养殖技术研究与示范(201303056-5)

摘　　要：2013年5—11月对松花江汤旺河下游10个断面主要离子进行定期监测分析。结果显示:汤旺河下游水域年离子总量平均值为98.31 mg/L,属弱矿化度水,主要阴阳离子分别为HCO3-与Na+(K+),水质类型为CⅡNa。2013年河水年内离子总量变化明显,离子组成变化亦显著。其中HCO3-与SO42-呈负相关关系,Cl-基本不变。不同河段除Ca2+、Mg2+差异显著外,各离子组成及离子总量则无显著差异。分析采样点离子总量与离子组成的相关性可知,离子总量越高,SO2-4、Na+(K+)所占比例越大,HCO3-、Ca2+所占比例越小。Through measuring major ions of Tangwang River water every ten days from May to November in 2013, we concluded that the average total ion content of the river was 104. 97 mg/L and the water of Tangwang River was low salinity water. The major anion and cation were HCO3 - and Na ^＋＋ respectively. The water type was C Ⅱ Na, according to Alekin classification. The total ion content changed significantly in 2013, and the ion composition of the river changed significantly with the proportions of HCO3 - and Mg ^＋ Negative correlation. In addition to that Ca^2＋ and Mg2＋ had significantly difference, the composition and the total ion showed no significant differences. By analyzing the relationship between the ion composition and total ion content in Tangwang River, we concluded that the higher total ions concentration the less the proportion of HCO3 - , Ca^2＋ and Mg^2.

关 键 词：汤旺河 离子组成 时空变化 水质类型 

分 类 号：S931.3[农业科学—渔业资源]