Journal of Soil and Groundwater Environment (한국지하수토양환경학회지:지하수토양환경)

Korean Society of Soil and Groundwater Environment (한국지하수토양환경학회)
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Estimation of Regional Future Agricultural Water Demand in Jeju Island Considering Land Use Change

토지이용 변화를 고려한 제주도 권역별 미래 농업용수 수요량 추정

  • Song, Sung-Ho (Rural Research Institute, Korea Rural Community Corporation) ;
  • Myoung, Woo-Ho (Rural Research Institute, Korea Rural Community Corporation) ;
  • An, Jung-Gi (Rural Research Institute, Korea Rural Community Corporation) ;
  • Jang, Jung-Seok (Rural Research Institute, Korea Rural Community Corporation) ;
  • Baek, Jin-Hee (Jeju Special Self-government Province Branch, Korea Rural Community Corporation) ;
  • Jung, Cha-Youn (Jeju Special Self-government Province Branch, Korea Rural Community Corporation)
  • 송성호 (한국농어촌공사 농어촌연구원) ;
  • 명우호 (한국농어촌공사 농어촌연구원) ;
  • 안중기 (한국농어촌공사 농어촌연구원) ;
  • 장중석 (한국농어촌공사 농어촌연구원) ;
  • 백진희 (한국농어촌공사 제주지역본부) ;
  • 정차연 (한국농어촌공사 제주지역본부)
  • Received : 2018.01.16
  • Accepted : 2018.02.28
  • Published : 2018.03.31
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Abstract

In this study, the projected land use area in 2030 for major crop production was estimated in Jeju Island using land cover map, and corresponding agricultural water demand for 40 sub-regions was quantitatively assessed using the future climate change scenario (RCP 4.5). Estimated basic unit of water demand in 2030 was the highest in the western region, and the lowest in the eastern region. Monthly maximum agricultural water demand analysis revealed that water demand in August of 2030 substantially increased, suggesting the climate of Jeju Island is changing to a subtropical climate in 2030. Agricultural water demand for sub-region in 2030 was calculated by multiplying the target area of the water supply excluding the area not in use in winter season by the basic unit of water demand, and the maximum and minimum values were estimated to be $306,626m^3/day$ at Seogwipo downtown region and $77,967m^3/day$ at Hallim region, respectively. Consequently, total agricultural water demand in Jeju Island in 2030 was estimated to be $1,848,010m^3/day$.

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References

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