Environmental Geology

, Volume 40, Issue 3, pp 381–391 | Cite as

Assessment of landslide susceptibility on the natural terrain of Lantau Island, Hong Kong

  • F. C. Dai
  • C. F. Lee
  • J. Li
  • Z. W. Xu
Cases and solutions

Abstract

 Steep terrain and the high frequency of tropical rainstorms make landslide occurrence on natural terrain a common phenomenon in Hong Kong. For example, more than 800 slope failures were triggered by a rainstorm in November 1993 on Lantau Island, Hong Kong. Maps of recent landslides interpreted from aerial photographs, in combination with a geographical information system, were used to evaluate the frequency and distribution of landslides, with particular reference to such physical parameters as lithology, slope gradient, slope aspect, elevation, vegetation cover, and proximity to drainage line, all of which are considered to be influential in the occurrence of landslides. A stepwise logistic regression model was obtained between landslide susceptibility and the above mentioned physical parameters. The study area has been classified into five classes of relative landslide susceptibility, namely, very low, low, moderate, high, and very high, based on this methodology.

Keywords Geographical information systems (GIS) Landslides Logistic regression modeling 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • F. C. Dai
    • 1
  • C. F. Lee
    • 2
  • J. Li
    • 3
  • Z. W. Xu
    • 4
  1. 1.Institute of Geographical Science and Natural Resources, Chinese Academy of Sciences, Beijing 100101, P.R. ChinaCN
  2. 2.Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, P.R. China e-mail: leecf@hkucc.hku.hk, Tel.: +86-852-28592645, Fax: +86-852–2858061126HK
  3. 3.Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, P.R. ChinaCN
  4. 4.Institute of Geographical Science and Resources, Chinese Academy of Sciences, Beijing 100101, P.R. ChinaCN

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