Journal of the Korean Institute of Landscape Architecture (한국조경학회지)

The Korean Institute of Landscape Architecture (한국조경학회)
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Analysis of the Inundation Potential by Elevation for the Land Evaluation in the Potentially Inundated Farms - A Case Study in Ibang-myeon, Changnyeong-gun, Kyungsangnamdo -

상습침수 농경지의 토지평가를 위한 고도별 침수 잠재성 분석 - 경상남도 창녕군 이방면을 대상으로 -

  • Park In-Hwan (Dept. of Landscape Architecture, Coll. Of Agr., Kyungpook National University) ;
  • Jang Gab-Sue (Dept. of Soil Management, Faculty of Agricultural Environment, National Institute of Agricultural Science and Technology) ;
  • Seo Dong-Joe (Seoul Digital University)
  • 박인환 (경북대학교 농업생명과학대학 조경학과) ;
  • 장갑수 (농업과학기술원 농업환경 토양관리과) ;
  • 서동조 (서울디지털대학교)
  • Published : 2005.06.01
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Abstract

A large scale of riverside rearrangement has been recently done in the major rivers in Korea. So inundation possibility in agricultural area closed by these rivers has been higher than the possibility a few years ago. However, land use in this area has not been adjusted to a change of this situation near the rivers. Therefore, when typhoon or heavy rain is happened on this area, it can cause a large damage in agricultural area. This study analyzed inundation potentiality in agricultural area at Ibang-myeon, Changnyeong-gun, Kyeongnam-province, Korea by using the logistic regression model and the piecewise regression model. The first thing we did was to transfer the inundation area per elevation to the accumulated inundation area per elevation. This accumulated inundation area per elevation as an distribution function could be described by the logistic regression model(LRM), and piecewise regression model(PRM) could make it much more accurate to analyze the inundation area per elevation. As a result, the regression models derived from LRM and PRM showed $R^2$ over 0.950. The models derived from LRM and PRM in Ibang-myeon noted that frequently inundated area(FIA) was shown up to 12.12m in elevation, and potentially inundated area(PIA) was shown up to 14.60m in elevation. In FIA, regular agricultural activity would be impossible. And It would be not easy to continue the regular agricultural activity in PIA. So, this land should be rearranged to be used for a buffer zone for ecosystem protection, landscape conservation and things like that in riverside.

Keywords

References

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