Korean Journal of Environmental Agriculture (한국환경농학회지)
- Volume 19 Issue 5
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- Pages.382-393
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- 2000
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- 1225-3537(pISSN)
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- 2233-4173(eISSN)
Factor Analyses for Water Quality Indicators of Streams, Ground Water, and Reservoir in Agricultural Small Catchments of the Han River Basin
- Park, C-S (Division Of Biological Environment, Kangwon National University) ;
- Joo, J-H (Division Of Biological Environment, Kangwon National University) ;
- Jung, Y-S (Division Of Biological Environment, Kangwon National University) ;
- Yang, J-E (Division Of Biological Environment, Kangwon National University)
- Published : 2000.12.30
Abstract
The principal indicators contributing to water qualities was screened by factor analyses, based on the monitored chemical parameters of water quality for various water resources from 1995 to 1999 in the small agricultural catchments of the Han River Basin. Water samples of streams, groundwaters, and reservoirs were taken four times a year from upper (Daegwanryong), middle (Dunnae and Chunchon) and lower (Guri) reaches of Han River Basin. In these areas, the respective type of farming practiced was alpine agriculture and livestocks raising, typical upland and paddy cultivation, and intensive cropping in the plastic film house. Water quality was monitored for twenty-one water quality parameters, including pH, EC, SS, T-N, T-P, COD, cations, anions, and heavy metals. pH, EC and COD of the stream waters were suitable for the Korea irrigation water quality guidelines. However, T-N and T-P concentrations of water samples in four catchments far exceeded the irrigation water guideline. Concentrations of canons and heavy metals in Wangsuk stream in Guri area were higher than those in streams in other areas. Factor analysis revealed that significant correlation was observed for 81 pairs out of 231 water quality indicators of stream water among the