摘要
利用MATLAB软件,采用主成分分析法对武烈河流域水环境质量进行了综合评价。结果表明:武烈河流域水环境质量整体相对较好,高寺台下游断面的水质污染比较严重,五日生化需氧量和溶解氧的主成分贡献率超过0.5,说明流域有机污染严重,需要控制工农业废水排放,以遏制污染加剧、预防富营养化爆发。
With the MATLAB, it chooses the method of Principal Component Analysis（PCA） to evaluate the water environmental quality of Wulie River synthetically. The main research results show that the overall water environmental quality of Wulie River is fine comparatively. However, water pollution of the monitoring section in the lower reaches of Gaositai displays more serious than others, where the contribution rate of five-day BOD and dissolved oxygen exceeds 0.5,illustrating that the primary pollution is organic contamination. It is necessary to control emissions of industrial and agricultural wastewater to keep from serious pollution and prevent the explosion of eutrophication.
出处
《环境保护科学》
CAS
2011年第6期102-105,共4页
Environmental Protection Science
基金
国家自然科学基金创新研究群体基金项目"流域水循环模拟与调控"(51021066)
关键词
主成分分析法
武烈河流域
水质评价
Principle Component Analysis（PCA） Wulie River Basin Water Quality Evaluation
