摘要： This study was performed to characterize hydrochemical properties of springs based on their geological origins in Taiwan. Stepwise discriminant analysis (DA) was used to establish a linear classification model of springs using hydrochemical parameters. Two hydrochemical datasets—ion concentrations and relative proportions of equivalents per liter of major ions—were included to perform prediction of the geological origins of springs. Analyzed results reveal that DA using relative proportions of equivalents per liter of major ions yields a 95.6% right assignation, which is superior to DA using ion concentrations. This result indicates that relative proportions of equivalents of major hydrochemical parameters in spring water are more highly associated with the geological origins than ion concentrations do. Low percentages of Na + equivalents are common properties of springs emerging from acid-sulfate and neutral-sulfate igneous rock. Springs emerging from metamorphic rock show low percentages of Cl − equivalents and high percentages of HCO equivalents, and springs emerging from sedimentary rock exhibit high Cl − /SO ratios. 其他題名： Environ Monit Assess 出版者： Dordrecht: Springer Netherlands 出版日期： 2012-01 出處： Environmental monitoring and assessment, 2012-01, Vol.184 (1), p.63-75 資源來源： ABI/INFORM Collection 版權： Springer Science+Business Media B.V. 2011 版權： Springer Science+Business Media B.V. 2012 識別號： ISSN: 0167-6369 識別號： ISSN: 1573-2959 識別號： EISSN: 1573-2959 識別號： DOI: 10.1007/s10661-011-1947-4 識別號： PMID: 21374046
