한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제60권3호
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  • Pages.135-148
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  • 2018
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  • 1738-3692(pISSN)
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  • 2093-7709(eISSN)
한국농공학회 (The Korean Society of Agricultural Engineers)
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SWAT-EFDC 연계 모델링을 통한 입장저수지의 유사 해석

Modeling Sedimentation Process in Ipjang Reservoir using SWAT and EFDC

  • Shin, Sat Byeol (Tropical Research and Education Center (TREC)/Agricultural and Biological Engineering (ABE) Department Institute of Food and Agricultural Sciences (IFAS), University of Florida) ;
  • Hwang, Soon-Ho (Department of Rural Systems Engineering, Seoul National University) ;
  • Her, Younggu (Tropical Research and Education Center (TREC)/Agricultural and Biological Engineering (ABE) Department Institute of Food and Agricultural Sciences (IFAS), University of Florida) ;
  • Song, Jung Hun (Tropical Research and Education Center (TREC)/Agricultural and Biological Engineering (ABE) Department Institute of Food and Agricultural Sciences (IFAS), University of Florida) ;
  • Kim, Hak Kwan (Institutes of Green Bio Science and Technology, Seoul National University) ;
  • Kang, Moon Seong (Department of Rural Systems Engineering, Research Institute of Agriculture and Life Sciences, Institutes of Green Bio Science and Technology, Seoul National University)
  • 투고 : 2018.03.13
  • 심사 : 2018.05.09
  • 발행 : 2018.05.31
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초록

Reservoir sedimentation is a major environmental issue, and various sediment load controls and plans have been proposed to secure clean and safe water resources. The objectives of this study were to estimate soil loss in the upper basins and predict sediment deposition in Ipjang reservoir using hydrologic and hydraulic model. To do so, SWAT (Soil and Water Assessment Tool) and EFDC (Environmental Fluid Dynamics Code) was used to estimate soil loss in two upper basins and to predict spatial distribution and amount of sediment deposition in the Ipjang reservoir, respectively. The hydrologic modeling results showed that annual average soil loss from the upper basins was 500 ton. The hydraulic modeling results demonstrated that sediment particles transported to the reservoir were mostly trapped in the vicinity of the reservoir inlet and then moved toward the bank over time. If long-term water quality monitoring and sediment survey are performed, this study can be used as a tool for predicting the dredging amount, dredging location and proper dredging cycle in the reservoir. The study findings are expected to be used as a basis to establish management solutions for sediment reduction.

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참고문헌

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