Runoff Characteristics of Refractory Organic Matters from South-Han River Watershed during Rainfall Event and Dry Season

남한강 지역의 건기 시, 강우 시, 난분해성 유기물질 유출 특성

  • Gil, Kyungik (School of Civil Engineering, Seoul National University of Science and Technology) ;
  • Kim, Taewon (Department of Civil Engineering, Seoul National University of Science and Technology) ;
  • Jung, Myung-Sook (Han-River Environmental Research Laboratory)
  • 길경익 (서울과학기술대학교 건설공학부) ;
  • 김태원 (서울과학기술대학교 토목공학과) ;
  • 정명숙 (국립환경과학원 한강물환경연구소)
  • Received : 2010.09.28
  • Accepted : 2011.01.03
  • Published : 2011.05.30

Abstract

In this paper, runoff characteristics of South-Han river watershed in terms of refractory organic matters were investigated. The concentrations of DOC, POC, R-DOC, R-POC in runoff and flow rates were determined by monitoring 27 times in dry season and 4 times in rainy season. The concentrations of the dissolved refractory organic matter, R-DOC was the lowest in fall and similar in the other dry seasons. The particulate refractory organic matter, R-POC showed less fluctuation than R-DOC. In summer, mass loading was the highest than other dry seasons. The concentrations of R-DOC, R-POC were showed to be affected by runoff volume. The mass loading grows higher as runoff volume gets higher.

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