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主成分分析法在鄱阳湖水质评价中的应用
引用本文:万金保,何华燕,曾海燕,李媛媛.主成分分析法在鄱阳湖水质评价中的应用[J].南昌大学学报(工科版),2010,32(2):113-117.
作者姓名:万金保  何华燕  曾海燕  李媛媛
作者单位:南昌大学鄱阳湖环境与资源利用教育部重点实验室,江西,南昌,330047;南昌大学环境与化学工程学院,江西,南昌,330031
基金项目:"十一五"国家科技支撑计划资助项目 
摘    要:通过SPSS13.0软件,利用主成分分析法有效地分析鄱阳湖水质的时空变化特征,结果表明:①鄱阳湖星子断面在1991—2006年时间跨度上水质不断下降,这一定程度上反映了鄱阳湖的污染程度在不断加重;②2008年鄱阳湖水质空间分布上表现为湖内水质好于入湖区域水质,说明五河带来的污染物对鄱阳湖周边地区水质影响较大,鄱阳湖主要受外源污染而非内源污染。

关 键 词:主成分分析  水质  评价  鄱阳湖

Application of Principle Component Analysis in Evaluating Water Quality of Poyang Lake
WAN Jin-bao,HE Hua-yan,ZENG Hai-yan,LI Yuan-yuan.Application of Principle Component Analysis in Evaluating Water Quality of Poyang Lake[J].Journal of Nanchang University(Engineering & Technology Edition),2010,32(2):113-117.
Authors:WAN Jin-bao  HE Hua-yan  ZENG Hai-yan  LI Yuan-yuan
Affiliation:a,b(a.Key Laboratory of Poyang Lake Environment and Resource Utilization,Ministry of Education,Nanchang University,Nanchang 330047,China;b.School of Environmental and Chemical Engineering,Nanchang University,Nanchang 330031,China)
Abstract:Temporal and spatial variation characteristic of water quality in Poyang Lake was effectively analyzed by using principal component analysis and software SPSS13.0.The results showed that:①water quality of Xingzi had been declined from 1991 to 2006,which reflected the level of Poyang Lake's pollution was constantly increased at a certain extent;②in 2008,water quality spatial distribution characteristic of Poyang Lake was that: water in lake was better than lakefront.This showed water quality of the Poyang lakefront was mainly influenced by pollution from the five rivers and Poyang Lake was mainly affected by external rather than internal sources of pollution.
Keywords:principle component analysis  water quality  evaluation  Poyang Lake
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