基于主成份分析法的玄武湖水质评价应用与解析

Xuanwu Lake water quality evaluation and analysis Based on Principal Component Analysis

本文对玄武湖水质进行调查统计的基础上,运用主成份分析的方法,对样本的特征性指标进行分类分析。分析结果表明:玄武湖水质指标主要由高锰酸盐指数,生化需氧量,氨氮,石油类,总磷和总氮组成;高锰酸盐指数,石油类与总氮为同一类指标、生化需氧量,氨氮和总磷为同一类指标.此结论基本上是正确合理的,对玄武湖的水质污染的治理有一定的借鉴作用,可以有针对性的对玄武湖的污染进行治理,节约治理成本,为南京市民打造一个良好的环境。

In this paper,the water quality of Xuanwu Lake was on the basis of investigation and statistics,using principal component analysis method,the sample characteristics index classification analysis.The results show that： the Xuanwu Lake water quality indexes mainly by potassium permanganate index,BOD,ammonia nitrogen,petroleum,total nitrogen and total phosphorus;potassium permanganate index,oil and total nitrogen the same kind of index,BOD,ammonia nitrogen and phosphorus for the same types of indicators.This conclusion is basically correct and reasonable,on the Xuanwu Lake water pollution control has certain reference function,can be targeted to the Xuanwu Lake pollution,save administrative costs,Nanjing for the public to create a good environment.