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(Article of periodic en Anglais - 2009)

Document title

Parameterizing a physically based shallow landslide model in a data poor region

Authors(s) and Affiliation(s)

KURIAKOSE S.L. (1) ; VAN BEEK L.P.H. (2) ; VAN WESTEN C.J. (1) ;
(1) International Inst. for Geo-Information Science and Earth Observation (ITC), Enschede, PAYS-BAS
(2) Dep. of Physical Geography, Univ., Utrecht, PAYS-BAS

Abstract

Shallow landslides and consequent debris flows are an increasing concern in the Western Ghats of Kerala, India. Their increased frequency has been associated with deforestation and unfavourable land-use practices in cultivated areas. In order to evaluate the influence of vegetation on shallow slope failures a physically based, dynamic and distributed hydrological model (STARWARS) coupled with a probabilistic slope stability model (PROBSTAB) was applied to the upper Tikovil River basin. It was tuned with the limited evidence of groundwater conditions during the monsoon season of 2005 and validated against observed landslide activity in the hydrological year 2001-2002. The results indicate the importance of root cohesion in maintaining stability and the critical role of the management of rubber plantations in this. Interception and evapotranspiration showed little influence on the development of failure conditions. The study also highlights the importance of high resolution digital terrain models for the accurate mechanistic prediction of shallow landslide initiation

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2009, vol. 34, no6 [pp. 867-881]

Bibliographic references : 2 p.

Collation : 9 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1794

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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