A new approach to integrate effects of changes in vegetation cover in slope stability assessment. - BRGM - Bureau de recherches géologiques et minières Access content directly
Conference Papers Year : 2013

A new approach to integrate effects of changes in vegetation cover in slope stability assessment.

Abstract

Global changes would have direct impacts on landslide activities through the modifications of the triggering events with the evolutions of climate forcing. However, some predisposing factors would also evolve, like, for example, the vegetation covers. Indeed, forests are likely to be modified, either by anthropogenic interventions, natural ageing or adapting to climate change. And this evolution is likely to result in changes of the susceptibilities of slopes to landslides. In order to propose adequate solutions for current and future forestry management, it is therefore necessary to properly estimate the influences of the vegetation on slope stabilities. In the present study, we are developing a complementary module to our slope stability assessment tool to take into account the effects of vegetation on the soil mechanical properties (cohesion and over-load), but also in a future second step, on the slope hydrology (change in interceptions, run-off, and infiltration). Hence the proposed methodology will combine a mechanical stability analysis using finite slope analysis, with a hydro-logical model, and with a vegetation module which interfere with both aspects. All these elements are inter-faced within a GIS-based solution. The method will be applied to a Pyrenean Valley, in Laruns, a site which is part of the Observatoire Pyrénéen du Changement Climatique (OPCC).

Domains

Earth Sciences
Fichier principal
Vignette du fichier
vandromme_desramaut_JAG2013_A_new_approach_to_integrate_effects_of_changes_in_vegetation_cover_in_slope_stability_assessment.pdf (705.28 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-00852279 , version 1 (20-08-2013)

Identifiers

  • HAL Id : hal-00852279 , version 1

Cite

Rosalie Vandromme, Nicolas Desramaut. A new approach to integrate effects of changes in vegetation cover in slope stability assessment.. Journées Aléas Gravitaires 2013, Sep 2013, Grenoble, France. 6 p. ⟨hal-00852279⟩

Collections

BRGM
149 View
327 Download

Share

Gmail Facebook X LinkedIn More