Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Simulating Arsenic Concentration Changes in Small Agricultrual Reservoir Using EFDC-WASP Linkage Model

EFDC-WASP 연계모형을 이용한 소규모 농업용 저수지 비소 농도 모의

  • Hwang, Soonho (Department of Rural Systems Engineering, Seoul National University) ;
  • Shin, Sat Byeol (Department of Agricultural and Biological Engineering, University of Florida) ;
  • Song, Jung-Hun (Department of Agricultural and Biological Engineering & Tropical Research and Education Center, University of Florida) ;
  • Yoon, Kwang Sik (Department of Rural and Biosystems Engineering, Chonnam National University) ;
  • Kang, Moon Seong (Department of Rural Systems Engineering, Research Institute for Agriculture and Life Sciences, Institute of Green Bio Science and Technology, Seoul National University)
  • Received : 2018.04.12
  • Accepted : 2018.08.21
  • Published : 2018.09.30
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Abstract

Even if a small amount of arsenic (As) is entering to small agricultural reservoir from upper streams, small agricultural reservoir becomes sensitive to changes in arsenic concentration depending on the water level in case of accumulation continuously because of its scale. If we want to manage arsenic concentration in small agricultural reservoir, it is very important to understand arsenic changes in agricultural reservoir. In spite of the fact that modeling is the most accurate method for analyzing arsenic concentration changes in small agricultural reservoirs, but, it is difficult to monitor arsenic change everyday. So, if data is prepared for modeling arsenic changes, water quality modeling is more effective than monitoring. Therefore, in this study, arsenic concentration changes was simulated and arsenic concentration change mechanism in small reservoir was analyzed using hydrological and water quality monitoring data and by conducting EFDC (Environment Fluid Dynamics Code)-WASP (Water Quality Analysis Simulation Program) linkage. EFDC-WASP coupling technique was very useful for modeling arsenic changes because EFDC can consider hydrodynamic and WASP can perform arsenic concentration simulation, separately. As a results of this study, during dry season, As concentration was maintained relatively high arsenic concentrations. Therefore, water level control will be needed for managing As concentration of reservoir.

Keywords

References

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