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Title :多変量解析を用いた石灰岩帯水層における地下水水質の統計的分類
Title alternative :MULTIVARIATE STATISTICAL CHARACTERIZATION OF GROUNDWATER QUALITY IN LIMESTONE AQUIFER, OKINAWA, JAPAN
Authors :安元, 純
聖川, 健斗
仲栄真, 史哉
砥綿, 泰弘
中野, 拓治
Issue Date :2013
Abstract :Multivariate statistical techniques, principal component and cluster analysis were applied to the data on groundwater quality of Limestone aquifer in the southern region of Okinawa, Japan, to extract principal factors corresponding to the different sources of variation in the hydrochemistry, with the objective of defining the main controls on the hydrochemistry at the regional scale. As a result of principal component analysis, ground water quality in the region could be classified into four principal components, that is, the groundwater is affected according to salt water and fertilizer (component 1), limestone dissolution (component 2), a redox state of a ground-water (component 3) and nitrogen accumulation/ denitrification (component 4). The cluster analysis was classified into four clusters according to the pollution situation of groundwater pollution in the study area, and the classification result was affected by season.
Type Local :雑誌掲載論文
ISSN :2185-467X
Publisher :公益社団法人 土木学会
URI :http://hdl.handle.net/20.500.12000/45702
Citation :土木学会論文集B1(水工学) Vol.69 no.4 p.595 -600
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Agriculture)

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