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Water Balance-based Farmland Suitability for Southern-type Garlic Cultivation

난지형 마늘의 농업수리학적 재배적지 분류

  • 김용완 (한국시설안전공단 수자원팀) ;
  • 홍석영 (농촌진흥청 국립농업과학원 농업환경부) ;
  • 김이현 (농촌진흥청 국립농업과학원 농업환경부) ;
  • 장민원 (경상대학교 농업생명과학대학 지역환경기반공학과, 경상대학교 농업생명과학연구원)
  • Received : 2011.09.14
  • Accepted : 2012.10.18
  • Published : 2012.11.30

Abstract

This study carried out farmland suitability analysis for southern-type garlic cultivation considering soil and temperature as well as water deficit conditions. The spatial extent was limited within the area derived by Kim et al. (2012) using just soil and temperature constraints. Daily soil moisture was simulated using a one-layer soil water balance model at a $100{\times}100m$ grid unit, and then annual water deficit was calculated from 2000 to 2010. The farmland suitability was classified as four steps: best suitable, suitable, possible, and low productive. As a result, total area of best suitable or suitable farmland was about 375,900 ha, and Gimje-si and Haenam-gun were appeared as the largest favorable area for southern-type garlic cultivation. The best suitable or suitable area at Haenam-gun, Goheung-gun, Shinan-gun, Namhae-gun, and Muan-gun, major production regions of southern-type garlic, were extracted as 20,187 ha, 13,018 ha, 4,715 ha, 1,319 ha, and 349 ha, respectively. On the other hand, the result showed that the adoption of sprinkler irrigation systems might be critical in cultivating the southern-type garlic at some regions having poor water balance.

Keywords

References

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