Changes in land cover and shallow landslide activity : a case study in the Spanish Pyrenees

Auteur :
BEGUERIA, S.

Description :
This paper focuses on shallow landslide activity in the Ijuez Valley, Spain, during the second half of the 20th century. A sequence of aerial images reveals a slight decrease in the landslide occurrence rate in the last half of the 20th century. A logistic regression routine was used to assess the influence of land use and vegetation recovery in the occurrence of shallow landslides. The result shows that the former arable fields on the valley slopes still facilitate lansliding, even after land abandonment and revegetation by shrubs or trees. A shift in the topographic location of landslides was also detected, pointing to an increased importance of water redistribution in the slopes after prolonged rainfall periods.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 2006, vol. 74, n°. 1-4, p. 196-206, nombre de pages : 11, Collation : Illustration, Références bibliographiques : 37 ref.

Date :
2006

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier