Study on temporal and spatial distribution patterns of water quality in Chaohu Lake
巢湖水质时空分布模式研究

Various methods including principal component analysis(PCA),Hierarchical cluster analysis(CA),discriminant analysis(DA) and GIS-based kriging methods were used to analyze data sets of water quality for 11 parameters monitored at 12 different sites of Chaohu Lake from 2004 to 2006 to determine temporal and spatial distribution patterns in water quality.The significance of the four principal components was verified:the first principal components included COD,BOD5 and chlorophyll-a(Chl-a);the second included e...