WIT Press


Landslide Susceptibility Zoning For Risk Analysis Using A Geographical Information System (GIS) In The Jerte Valley (Spanish Central System)

Price

Free (open access)

Paper DOI

10.2495/RISK000311

Volume

45

Pages

16

Published

2000

Size

1,775 kb

Author(s)

R.M. Carrasco, J. Pedraza, J.F. Martm-Duque, M. Mattera & M.A. Sanz

Abstract

Landslide susceptibility zoning for risk analysis using a geographical information system (GIS) in the Jerte Valley (Spanish Central System) R. M. Carrasco\ J. Pedraza\ J.F. Martm-Duque\ M. Mattera^ & M.A. ^ Universidad de Castilla-La Mancha, Spain. * Universidad Complutense, Spain. Abstract The Jerte Valley is a linear tectonic depression (NE-SW), generated by several fracture systems associated with the Odemira-Plasencia fault which is one of the most important in the Iberian Peninsula. One of the most significant processes in the Quaternary evolution of this valley is that of mass movements. An analysis of the natural factors controlling these processes in this area reveals that, in current conditions, major mass movements are unlikely to be generated. However, our working hypothesis considers that a phenomenon with catastrophic consequences is feasible, chiefly due to anthropic activity; in recent years there has been a process of replacement of the natural vegetation

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