松花江佳木斯段水质评价及变化趋势分析  

Water quality evaluation and change trend analysis of Jiamusi section of Songhua River

作　　者：许文博 杨旭[1] XU Wenbo;YANG Xu(School of Hydraulic and Electric Power,Heilongjiang University,Harbin 150080,China)

机构地区：[1]黑龙江大学水利电力学院,哈尔滨150080

出　　处：《环境保护科学》2025年第2期96-101,共6页Environmental Protection Science

基　　金：黑龙江省省属高等学校基本科研业务费项目(2020-KYYWF-1020)。

摘　　要：为了解松花江佳木斯段水质状况,选取2021年1—12月松花江佳木斯段水体的DO、CODMn和COD等6项水质指标,分析其变化特征,并采用改进的综合水质标识指数法和Spearman秩相关系数法对松花江佳木斯段进行水质评价及水质变化趋势分析。结果表明:根据各断面的综合水质标识指数可知,各断面年度评价结果均符合Ⅱ类水质,且汤旺河口内断面综合水质状况优于其他4个断面;月度评价结果显示,汤旺河口内断面水质类别为Ⅰ至Ⅲ类水质之间,其余断面水质类别基本处于Ⅱ和Ⅲ类水质;从水质变化趋势来看,同江断面水质呈恶化趋势,其余断面水质变化平稳。To understand the water quality status of the Jiamusi section of the Songhua River,six water quality indicators such as DO,CODMn,and COD of the water body in the Jiamusi section of the Songhua River from January to December 2021 were selected.Their variation characteristics were analyzed,and the improved comprehensive water quality labeling index method and the Spearman rank correlation coefficient method were adopted to conduct water quality evaluation and water quality change trend analysis on the Jiamusi section of the Songhua River.The results showed that according to the comprehensive water quality labeling index of each section,the annual evaluation results of each section were all in line with ClassⅡwater quality,and the comprehensive water quality status of the section inside the Tangwang River Estuary was better than that of the other four sections.The monthly evaluation results indicated that the water quality category of the section inside the Tangwang River Estuary was between ClassⅠand ClassⅢwater quality,while the water quality categories of the remaining sections were basically between ClassⅡand ClassⅢwater quality.In terms of the water quality change trend,the water quality of the Tongjiang section showed a deteriorating trend,while the water quality of the remaining sections changed steadily.

关 键 词：水质评价 综合水质标识指数 水质变化趋势 松花江佳木斯段 

分 类 号：X824[环境科学与工程—环境工程] X52