基于多元统计分析的盐河水质评价及趋势分析  

The water quality assessment and trend analysis for Salt River based on multivariate statistical analyzing

作　　者：田瀚[1] 

机构地区：[1]淮安信息职业技术学院,江苏淮安223003

出　　处：《吉林水利》2008年第7期29-31,34,共4页Jilin Water Resources

摘　　要：用主成分分析的方法,找出影响盐河2007年水质的主成分,计算各样本的主成分得分,用聚类分析的方法将样本水质分类,结合分类结果及水质综合评分对各样本水质进行评价,并用秩相关系数检验法作污染趋势分析。With the method of principal components analysis identifies the main elements impacting the water quality of Salt River in 2007; calculates the score of the important ingredients of each sampie; using clustering analysis methods classifies the sample water quality; combining with the results and water quality synthesis grade evaluates each sample water quality, and by the rank correlation test coefficient analyzes the pollution trend.

关 键 词：主成分分析 聚类分析 水质评价 秩相关 

分 类 号：P342[天文地球—水文科学]