文献类型：期刊文献

中文题名：北方典型城市不同类型河流的水质空间分布与相关性分析

英文题名：SPATIAL DISTRIBUTION AND CORRELATION ANALYSIS OF WATER QUALITY OF DIFFERENT TYPES OF RIVERS IN A TYPICAL NORTHERN CITY IN CHINA

作者：王薇[1] 王中玉[2] 白小晶[3] 徐卫刚[4] 魏东洋[5,6]

第一作者：王薇

机构：[1]西北师范大学,兰州730070;[2]华北电力大学工程生态学与非线性科学研究中心,北京102206;[3]北京清控人居环境研究院有限公司,北京100083;[4]中国林业科学研究院湿地研究所,北京100091;[5]中国环境科学研究院水环境研究所,北京100012;[6]生态环境部华南环境科学研究所,广州510655

年份：2019

卷号：37

期号：9

起止页码：50-56

中文期刊名：环境工程

外文期刊名：Environmental Engineering

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2019_2020】；

基金：国家重点研发计划专项(2016YFC0400703-3);国家科技重大专项(2015ZX07204-007);中央高校基本科研业务费面上项目(2017MS055)

语种：中文

中文关键词：北方典型城市;河流;水质空间分布;聚类分析;相关性分析

外文关键词：typical northern city;rivers;spatial distribution of water quality;cluster analysis;correlation analysis

分类号：X832

摘要：基于监测数据,系统分析了某北方典型城市3种不同类型河流的水质空间分布,探讨了各水质指标之间的相关性。通过聚类分析对水质进行空间分组,结果表明:3条河流综合的水质空间相似性较为一致,均表现为上游或中上游断面平方欧氏距离较为接近,下游或中下游断面亦同。单一河流与3条河流总体的相关性分析分别得到P<0.05和P<0.01水平下显著相关的水质指标。极显著相关(P<0.01)的水质指标回归分析结果表明:TN与NH3^-N、COD与BOD5之间拟合效果较好,相互之间解释力较高,但TP与NO3^--N、TN与NO3^--N之间尽管极显著相关,但拟合结果较差,相互之间并没有较好的解释力,且即使变换其他形式的拟合方程,其效果也不佳。
Based on the monitored data, the spatial distribution of water quality of three different types of rivers in a typical northern China city was systematically investigated, the correlated relationships between these water quality indexes were also discussed.The cluster analysis results about the classification on the water quality spatial groups demonstrated that the spatial similarity of water quality was comparatively consistent between three rivers, which showed that the square Euclidean distances were comparatively close among upstream or middle-upstream cross-sections while the downstream or middle-downstream sections had similar results.With the correlation analysis performed on single river and total three rivers scales, the water quality indexes with significant correlations at P <0.05 and P <0.01 levels were identified, respectively.Regression analysis results of TN and NH 3-N, COD and BOD 5 were with extremely significant correlation ( P <0.01), showing that TN and NH 3-N , COD and BOD 5 had better fitting effects and higher explanatory power.However, the fitting results between TP and NO3^--N, TN and NO3^--N were very poor, which indicated that there was no better explanatory power between them.In addition, the fitting effect would not get improved even if other forms of fitting equations were adopted.