Statistical analyses of active patterned ground occurrence in the Taillon Massif (Pyrénées, France/Spain)

Auteur(s) et Affiliation(s)



Description :
A novel spatial sampling strategy focusing only on fields with potential patterned ground occurrence was used. The data were examined using factor analyses (multiple correspondence analysis and hierarchical ascendant classification) blended with a complementary bivariate method to associate patterned ground occurrence with 8 environmental variables. The absence of active patterned ground is associated with low elevation, glacier absence, no slopewash, a low height-distance ratio and talus fans. Zones where active patterned ground features are present are divided into 3 homogeneous subzones and are mostly associated with glacier influence, a large height-distance ratio and an absence of vegetation. Their location is controlled by the presence of till from different glacial sequences so that the former and current presence of glaciers favours the development of patterned ground features at the landscape scale.


Type de document :
Article de périodique

Source :
Permafrost and periglacial processes, issn : 1045-6740, 2011, vol. 22, n°. 3, p. 228-238, nombre de pages : 11, Références bibliographiques : 1 p.

Date :
2011

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley