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Runoff Characteristics of NPS in Agricultural Area

포도재배지의 비점오염물질 유출특성

  • Yi, Youn-Jeong (Nakdong River Water Environment Research Center, National Institute of Environmental Research) ;
  • Lee, Jae-Woon (Nakdong River Water Environment Research Center, National Institute of Environmental Research) ;
  • Kwon, Hun-Gak (Nakdong River Water Environment Research Center, National Institute of Environmental Research) ;
  • Yoon, Young-Sam (National Institute of Environmental Research) ;
  • Lee, Jae-Kwan (Nakdong River Water Environment Research Center, National Institute of Environmental Research)
  • 이윤정 (국립환경과학원 낙동강물환경연구소) ;
  • 이재운 (국립환경과학원 낙동강물환경연구소) ;
  • 권헌각 (국립환경과학원 낙동강물환경연구소) ;
  • 윤영삼 (국립환경과학원) ;
  • 이재관 (국립환경과학원 낙동강물환경연구소)
  • Received : 2011.07.18
  • Accepted : 2011.09.27
  • Published : 2011.10.31

Abstract

In this study, occurrence status of nonpoint pollutants and characteristics of discharge by each nonpoint pollutants were examined through monitoring on nonpoint pollutants caused when raining in vineyard belonging to the agricultural area of various land use patterns. Also, the first flush analysis limited to studies on the existing non-percolation area was applied to percolation area to ascertain availability and criteria of study. Various water quality and sluice of nonpoint pollutants were analyzed, based on which discharge of nonpoint pollutants in agricultural area was ascertained to be influenced greatly by artificial factors such as period, cultivation, management, etc. Meanwhile, the first flush phenomenon at agricultural area was ascertained to occur, and the first flush was quantified through calculation of the first flush ratio. If MFF30 is based, discharge load by each nonpoint pollutants caused when raining was investigated to include 40.8% on the basis of total discharge. In case of SS in pollutants showed the highest first flush phenomenon of 64.8%. Through such a result, calculation possibility of the initial rain criteria was ascertained, and it was determined that reliability-assured criteria were calculated through further monitoring.

Keywords

Vineyard;Nonpoint;First Flush

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