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(Article of periodic en Anglais - 2012)

Document title

Favorability values of geological, vegetation and relief factors for the development of soil creep landforms

Authors(s) and Affiliation(s)

MENÉNDEZ-DUARTE R. (1) ; VÁZQUEZ TARRÍO D. (1) ; FERNÁNDEZ S. (1) ; COLUBI A. (1) ;
(1) INDUROT, Oviedo Univ., Asturias, Mieres, ESPAGNE

Abstract

The variables considered in the analysis were : 1) geological-geomorphologic variables : bedrock geology, surficial formations (lithologic and genetic classification), vegetation and presence of rock area, and 2) relief variables : elevation, slope, aspect, curvature, relief index, flow accumulation and Compound Topographic Index (CTI). The influence of each variable in the development of the creep landforms was studied by favorability analysis. The results show that presence of creep landforms is more frequent in slopes with calcareous lithologies and surficial deposits, and in those slopes with higher values of elevation, slope angles of approximately 25-35°, high curvature value and relief index higher than 5 an lower than 9. Nevertheless, some relief variables, such as CTI or flow accumulation (which describes water movement and accumulation over the surface of the slope), do not appear to have a strong influence on the distribution of creep landforms

Source

Article of periodic

published at : Zeitschrift für Geomorphologie / ISSN 0372-8854 / CODEN ZGMPAG

Editor : Gebruder Borntraeger, Stuttgart - ALLEMAGNE (1925)

Millesime : 2012, vol. 56, no1 [pp. 75-92]

Bibliographic references : 2 p.

Collation : 6 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 8829

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1127/0372-8854/2011/0057

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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