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Environmental Geology

, Volume 50, Issue 6, pp 847–855 | Cite as

Landslide susceptibility mapping in the Damrei Romel area, Cambodia using frequency ratio and logistic regression models

  • Saro Lee
  • Touch Sambath
Original Article

Abstract

This study applied, tested and compared a probability model, a frequency ratio and statistical model, a logistic regression to Damre Romel area, Cambodia, using a geographic information system. For landslide susceptibility mapping, landslide locations were identified in the study area from interpretation of aerial photographs and field surveys, and a spatial database was constructed from topographic maps, geology and land cover. The factors that influence landslide occurrence, such as slope, aspect, curvature and distance from drainage were calculated from the topographic database. Lithology and distance from lineament were extracted and calculated from the geology database. Land cover was classified from Landsat TM satellite imagery. The relationship between the factors and the landslides was calculated using frequency ratio and logistic regression models. The relationships, frequency ratio and logistic regression coefficient were overlaid to make landslide susceptibility map. Then the landslide susceptibility map was compared with known landslide locations and tested. As the result, the frequency ratio model (86.97%) and the logistic regression (86.37%) had high and similar prediction accuracy. The landslide susceptibility map can be used to reduce hazards associated with landslides and to land cover planning.

Keywords

Landslide Frequency ratio Logistic regression GIS Cambodia 

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Geoscience Information CenterKorea Institute of Geoscience & Mineral Resources (KIGAM)DaejeonKorea
  2. 2.Department of Geology, General Department of Mineral ResourcesMinistry of Industry, Mines and EnergyPhnom PenhKingdom of Cambodia

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