Irrigation Water Quality of the Kyoungan Stream.

경안천수계의 농업용수로서 수질검토

  • Lee, Jong-Sik (National Institute of Agricultural Science and Technology,RDA) ;
  • Jung, Goo-Bok (National Institute of Agricultural Science and Technology,RDA) ;
  • Kim, Jin-Ho (National Institute of Agricultural Science and Technology,RDA) ;
  • Kim, Bok-Young (National Institute of Agricultural Science and Technology,RDA)
  • 이종식 (농업과학기술원 환경관리과) ;
  • 정복영 (농업과학기술원 환경관리과) ;
  • 김진호 (농업과학기술원 환경관리과) ;
  • 김복영 (농업과학기술원 환경관리과)
  • Published : 1998.06.30

Abstract

The water quality in Kyoungan stream was surveyed at 6 sites for 7 months from March to September in 1994, 1995 and 1997. The overall results are summarized as follows: Yearly COD concentration of Kyuongan stream was decreased from 26.3 mg/l in 1994 to 17.8 mg/l in 1997, but those of $NH_4-N$ and $NO_3-N$ were not changed. The water quality of Kyoungan stream in July and August was better than any other months due to dilution with rainwater. The water quality along Kyoungan stream was deteriorated with inflow of tributaries contaminated with livestock wastewater and sewage water in the mid-stream, but thereafter it was recovered with inflow of Gonjiam steam and Beon stream.

Keywords

Water quality;Irrigation water; Kyoungan stream