Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Study on Risk Assesment of Debris Flow using GIS

GIS를 이용한 토석류 위험성 평가에 관한 연구 (소규모 개발지역 중심으로)

  • Chang, In-Soo (Department of Environmental Engineering, Korea National University of Transportation) ;
  • Park, Eun-Young (Applied Water Resources Research Center) ;
  • Park, Ki-Bum (Applied Water Resources Research Center) ;
  • Kim, Sungwon (Department of Railroad and Civil Engineering, Dongyang University)
  • Received : 2012.11.07
  • Accepted : 2013.02.25
  • Published : 2013.02.28
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Abstract

The relationship between debris flow and topographical factors is essential for the reliable estimation of soil loss. The objective of this paper is to estimate stability index and soil loss for assessing landsliding risk caused by debris flow. SIMAP and RUSLE are used to estimate stability index and soil loss, respectively. The landsliding risk area estimated by using SIMAP is found to be different from the large land area estimated by RUSLE. It is found that the spatial distribution of soil cover significantly influences landsliding risk area. Results also indicate that stability index and soil loss, estimated by soil cover factor, improve the assessment of landsliding risk.

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References

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