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Characteristics of Aquatic Environment in Close-to-Nature Onchun Stream - Before and After the Flowing of the Nakdong River -

자연형 하천 온천천의 물환경 특성 - 하천유지 용수 공급 전, 후 -

  • Kwon, Dong-Min (Division of Environmental Research, Busan Metropolitan City Institute of Health & Environment) ;
  • Son, Jun-Won (Division of Environmental Research, Busan Metropolitan City Institute of Health & Environment) ;
  • Yoo, Eun-Hee (Division of Environmental Research, Busan Metropolitan City Institute of Health & Environment) ;
  • Jeong, Jae-Won (Division of Environmental Research, Busan Metropolitan City Institute of Health & Environment) ;
  • Yun, Na-Na (Division of Environmental Research, Busan Metropolitan City Institute of Health & Environment) ;
  • Hwang, In-Jung (Division of Environmental Research, Busan Metropolitan City Institute of Health & Environment) ;
  • Kwon, Ki-Won (Division of Environmental Research, Busan Metropolitan City Institute of Health & Environment) ;
  • Bin, Jae-Hun (Division of Environmental Research, Busan Metropolitan City Institute of Health & Environment) ;
  • Cheigh, Hong-Sik (Division of Environmental Research, Busan Metropolitan City Institute of Health & Environment)
  • 권동민 (부산광역시 보건환경연구원 환경조사과) ;
  • 손정원 (부산광역시 보건환경연구원 환경조사과) ;
  • 유은희 (부산광역시 보건환경연구원 환경조사과) ;
  • 정재원 (부산광역시 보건환경연구원 환경조사과) ;
  • 윤나나 (부산광역시 보건환경연구원 환경조사과) ;
  • 황인정 (부산광역시 보건환경연구원 환경조사과) ;
  • 권기원 (부산광역시 보건환경연구원 환경조사과) ;
  • 빈재훈 (부산광역시 보건환경연구원 환경조사과) ;
  • 최홍식 (부산광역시 보건환경연구원 환경조사과)
  • Published : 2007.07.30

Abstract

In order to improve the water environment at urban streams in Korea, several river restoration projects have been initiated for past few years. This study evaluates the impact of diverting water application at the riverhead of Onchun stream through the monitoring program for several water quality and ecological parameters. Various water quality parameters and ecological item such as benthic macroinverterates has been investigated between 09/05 and 12/06. Analysis indicates that the application of diverting water from Nakdong river to Onchun stream distinctly improved several water quality parameters such as, PH, BOD, TN, TP and concentrations of heavy metals. Low flow augmentation also improve ecological indicies such as the diversity index of benthic macroinvertebrates. Generally speaking, releasing addition water from head water of Onchun stream improves various water environmental characteristics.

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