Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Economic analysis of irrigation facilities for securing water for field crops

  • Hyung Jin Shin (Rural Research Institute, Korea Rural Community Corporation) ;
  • Jae Young Lee (Research Center, Contecheng Co., Ltd.) ;
  • Jae Nam Lee (Rural Research Institute, Korea Rural Community Corporation) ;
  • Han Na Lee (Department of Rural Construction Engineering, Kongju National University) ;
  • Sang Hyeon Park (Department of Rural Construction Engineering, Kongju National University) ;
  • Bum Soo Shin (Department of Rural Construction Engineering, Kongju National University) ;
  • Sang Sun Cha (Industrial Development Institute, Kongju National University) ;
  • Se Myung Kwon (Forest Restoration center, Korea Association of Forest Enviro-Conservation Technology) ;
  • Jung Il Seo (Department of Forest Science, Kongju National University) ;
  • Chan Gi Park (Department of Rural Construction Engineering, Kongju National University)
  • Received : 2023.09.07
  • Accepted : 2023.11.07
  • Published : 2023.12.01
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Abstract

Considering irrigation facilities are currently insufficient and drought vulnerability due to climate change is high, efficient measures are required to secure water supply for field crops. This study, therefore, calculated the water shortage to secure water for representative field crops. An economic analysis was further conducted by comparing the production income to the input cost for each method. Here, five distinct regions were selected to represent each crop-Cheongyang-gun for chili peppers, Yesan-gun for apples, Dangjin-si for cabbages, Seosan-si for garlic, and Goesan for beans. The regions with insufficient water supply were estimated by calculating the water requirements and the supplied water from public groundwater wells for each area. A comprehensive set of four scenarios was presented as a strategy to ensure water security and manage irrigation facilities. These scenarios comprised the maintenance of existing groundwater wells, the construction of new water storage tanks, the installation of additional groundwater wells, and the utilization of surface water. B/C (benefit/cost) analysis was conducted for each scenario. As a result, the construction of water storage tanks was selected as a facility and water management plan in Cheongyang-gun, Dangjin-si, and Seosan-si. The analysis additionally indicated the economic viability of installing surface water utilization facilities in Yesan-gun and developing water storage tanks and groundwater (aquifer) wells in Goesan-gun. The results of this study are considered to serve as foundation data that may be utilized in the selection of water management plans for drought-prone areas in the future.

Keywords

Acknowledgement

본 연구는 본 연구는 농촌진흥청 연구사업(세부과제번호: PJ01481303) 및 산림청(한국임업진흥원) 산림과학기술연구개발사업 (과제번호: 2021332C10-2323-AA01)의 지원에 의하여 이루어진 것입니다.

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