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Water Supply Alternatives for Drought by Weather Scenarios Considering Resilience: Focusing on Naju Reservoir

회복탄력성을 고려한 기상 시나리오별 가뭄 용수 공급방안: 나주호를 중심으로

  • Park, JinHyun (Project Planning Office, Korea Rural Community Corporation (KRC)) ;
  • Go, JeaHan (Farmland &Irrigation Development Office, Korea Rural Community Corporation (KRC)) ;
  • Jo, YoungJun (Chungnam Regional Headquarter, Korea Rural Community Corporation (KRC)) ;
  • Jung, KyungHun (Project Planning Office, Korea Rural Community Corporation (KRC)) ;
  • Sung, MuHong (Jeonnam Regional Headquarter, Korea Rural Community Corporation (KRC)) ;
  • Jung, HyoungMo (Water Resources Planning Office, Korea Rural Community Corporation (KRC)) ;
  • Park, HyunKyu (Department of Rural and Bio-Systems Engineering, Chonnam National University) ;
  • Yoo, SeungHwan (Department of Rural and Bio-Systems Engineering, Chonnam National University) ;
  • Yoon, KwangSik (Department of Rural and Bio-Systems Engineering, Chonnam National University)
  • Received : 2018.03.30
  • Accepted : 2018.08.29
  • Published : 2018.09.30

Abstract

Resilience has been widely used in various fields including design and operation of infrastructures. The resilient infrastructures not only reduce the damage scale of various disasters but also reduce the time and cost required for restoration. However, resilience rarely applied to promote efficient management of agricultural infrastructures. Recently, drought is an aggravating disaster by climate change and need countermeasures. Therefore, we tried to demonstrate evaluating measures in case of drought under consideration of resilience. This study applied the robustness-cost index (RCI) to evaluate alternative solution of the supply problem of a large agricultural reservoir under drought conditions. Four structural alternatives were selected to estimate the robustness index (RI) and the cost index (CI) to obtain the RCI values. Structural alternatives are classified into temporary measures and permanent measures. Temporary measures include the development of a tube wells and the installation of the portable pump, while the permanent measures include the installation of a pumping stations and the pumping water to the reservoir (Yeongsan River-Naju reservoir). RCI values were higher in permanent measures than those of temporary measures. Initial storage of the reservoir also affected RCI values of the drought measures. Permanent measures installation and management of early stage of the reservoir storage shortage was identified as the most resilient system.

Keywords

References

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