阿什河哈尔滨段水质评价  

Water Quality Evaluation of the Ash River in Harbin Section

作　　者：许鑫 肖海丰[1] XU Xin;XIAO Hai-feng(School of Geographical Sciences,Harbin Normal University,Harbin,Heilongjiang 150025)

机构地区：[1]哈尔滨师范大学地理科学学院,黑龙江哈尔滨150025

出　　处：《安徽农业科学》2022年第9期78-82,共5页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(40972115)。

摘　　要：以阿什河哈尔滨段河水为研究对象,2020年10月赴阿什河采集水样并对pH、总氮(TN)、总磷(TP)、电导率(EC)、溶解性固体(TDS)等13项指标进行测试分析。在此基础上,对TN、TP、PO_(4)^(3-)、DTP、PP、DOP、COD_(Mn)的空间分布特征和来源进行分析,并采用综合污染指数法进行水质评价。结果表明,TP、PO_(4)^(3-)、DTP、PP、DOP在空间分布上具有一定的相似性,高值区与附近的农业面源污染和污水排放有关;TN的含量严重超标,是引起水质污染的首要原因。综合污染评价分析表明,研究区域的水质为Ⅳ类、Ⅴ类,水质类别较差。Taking Harbin section of the Ashe River as the research object, water samples were collected in the Ashe River in October 2020 and 13 indexes such as pH, total nitrogen(TN), total phosphorus(TP), electrical conductivity(EC) and dissolved solids(TDS) were tested and analyzed.On this basis, the spatial distribution characteristics and sources of TN, TP, PO_(4)^(3-), DTP, PP, DOP and COD_(Mn)were analyzed, and the comprehensive pollution index method was used to evaluate the water quality.The results showed that the spatial distribution of TP, PO_(4)^(3-), DTP, PP and DOP was similar to some extent, and the high value area was related to the agricultural non-point source pollution and sewage discharge nearby.The content of TN seriously exceeded the standard, which was the primary cause of water pollution.The comprehensive pollution evaluation analysis showed that the water quality in the study area was classified as Ⅳ class and Ⅴ class, and the water quality category was poor.

关 键 词：水质评价 空间分布特征 来源 综合污染指数法 阿什河哈尔滨段 

分 类 号：X824[环境科学与工程—环境工程]