Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Assessment of Water Distribution and Irrigation Efficiency in Agricultural Reservoirs using SWMM Model

SWMM 모형을 이용한 농업용 저수지 용수분배 모의 및 관개효율 평가

  • Shin, Ji-Hyeon (Department of Bioresources and Rural Systems Engineering, Hankyong National University) ;
  • Nam, Won-Ho (School of Social Safety and Systems Engineering, Institute of Agricultural Environmental Science, National Agricultural Water Research Center, Hankyong National University) ;
  • Bang, Na-Kyoung (Department of Convergence of Information and Communication Engineering, Hankyong National University) ;
  • Kim, Han-Joong (School of Social Safety and Systems Engineering, Institute of Agricultural Environmental Science, Hankyong National University) ;
  • An, Hyun-Uk (Department of Agricultural and Rural Engineering, Chungnam National University) ;
  • Do, Jong-Won (Integrated Water Management Supporting Department, Water Resources Planning Office, Korea Rural Community Corporation) ;
  • Lee, Kwang-Ya (Integrated Water Management Supporting Department, Water Resources Planning Office, Korea Rural Community Corporation)
  • Received : 2020.04.08
  • Accepted : 2020.05.13
  • Published : 2020.05.31
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Abstract

The management of agricultural water can be divided into management of agricultural infrastructure and operation to determine the timing and quantity of water supply. The target of water management is classified as water-supply facilities, such as reservoirs, irrigation water supply, sluice gate control, and farmland. In the case of agricultural drought, there is a need for water supply capacity in reservoirs and for drought assessment in paddy fields that receive water from reservoirs. Therefore, it is necessary to analyze the water supply amount from intake capacity to irrigation canal network. The analysis of the irrigation canal network should be considered for efficient operation and planning concerning optimized irrigation and water allocation. In this study, we applied a hydraulic analysis model for agricultural irrigation networks by adding the functions of irrigation canal network analysis using the SWMM (Storm Water Management Model) module and actual irrigation water supply log data from May to August during 2015-2019 years in Sinsong reservoir. The irrigation satisfaction of ponding depth in paddy fields was analyzed through the ratio of the number of days the target ponding depth was reached for each fields. This hydraulic model can assist with accurate irrigation scheduling based on its simulation results. The results of evaluating the irrigation efficiency of water supply can be used for efficient water distribution and management during the drought events.

Keywords

References

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