Environmental Earth Sciences

, Volume 63, Issue 2, pp 397–406 | Cite as

Landslide susceptibility assessment using the bivariate statistical analysis and the index of entropy in the Sibiciu Basin (Romania)

  • Mihaela ConstantinEmail author
  • Martin Bednarik
  • Marta C. Jurchescu
  • Marius Vlaicu
Original Article


The Sibiciu Basin is located in Romania between the Buzău Mountains and the Buzau Subcarpathians (Curvature Carpathians and Subcarpathians). The geology of the basin consists of Paleogene flysch deposits represented by an alternation of sandstones, marls, clays and schists and Neogene deposits represented by marls, clays and sands. The area is affected by different types of landslides (shallow, medium-deep and deep-seated failures). In Romania, in the last decades, direct and indirect methods have been applied for landslide susceptibility assessment. The most utilized before 2000 were based on qualitative approaches. This study evaluates the landslide susceptibility in the Sibiciu Basin using a bivariate statistical analysis and an index of entropy. A landslide inventory map was prepared, and a susceptibility estimate was assessed based on the following parameters which influence the landslide occurrence: slope angle, slope aspect, curvature, lithology and land use. The landslide susceptibility map was divided into five classes showing very low to very high landslide susceptibility areas.


Landslide susceptibility Bivariate statistical analysis Index of entropy Sibiciu Basin Buzău Mountains Romania 



The present study was supported by the Ministry of Education and Research through the grant in aid PNII-IDEI_367 (2007–2010) funded through The National University Research Council of Romania (CNCSIS). The kind cooperation with Department of Engineering Geology, Comenius University, Bratislava, is fully appreciated.


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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Mihaela Constantin
    • 1
    Email author
  • Martin Bednarik
    • 2
  • Marta C. Jurchescu
    • 1
  • Marius Vlaicu
    • 1
  1. 1.Institute of GeographyRomanian AcademyBucharest 20Romania
  2. 2.Department of Engineering GeologyComenius UniversityBratislavaSlovak Republic

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