다변량해석기법을 이용한 만경강水系의 水質評價 = The Evaluation of Water Quality in the Mankyung River using Multivariate Analysis

다국어 초록 (Multilingual Abstract)

This study was conducted to evaluate water quality in the Mankyung River using multivariate analysis. The analysis data which was surveyed from January 1996 to December 2002 in Mankyung river was aquired by the ministry of environment. Twelve water quality parameters were determined on each survey. The results were summarized as follow ; Water quality in the Mankyung River could be explained up to 74.90％ by four factors which were included in loading of organic matter and nutrients by the tributaries(43.28％), seasonal variation(10.40％), loading of pathogenic bacteria by domestic sewage of Gapcheon (12.41％) and internal metabolism in river(8.81％). The result of cluster analysis by station was classified into three group that has different water quality characteristics. Especially, Iksan river was appeared to considerable water quality characteristics against other station. In monthly cluster analysis, three group was classified by seasonal characteristics. Also, in yearly cluster analysis, three group was classified. It is necessary to control the pollutant loadings by domestic sewage and livestock waste for water quality management of Mankyung river.

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