Association between cedar decline and hillslope stability in mountainous regions of southeast Alaska

Auteurs :
JOHNSON, A.C.
WILCOCK, P.

Description :
The AA. examine 2 factors associated with a natural forest decline that may increase landslide activity : increased soil saturation, which leads to higher pore pressures and reduced effective normal stress along potential landslide surfaces; and reduced strength of decaying roots. A simple slope stability model is used to evaluate the relative influence of soil moisture changes and loss of root strength on landslide frequency and to evaluate the timing of landslides relative to the onset of cedar decline.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 2002, vol. 46, n°. 1-2, p. 129-142, nombre de pages : 14, Collation : Illustration, Références bibliographiques : 45 ref.

Date :
2002

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