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(Article of periodic en Anglais - 2012)

Document title

Impact of forest fires on geomorphic processes in the Tyrolean Limestone Alps

published at : Concepts and implications of environmental change and human impact : studies from Austrian geomorphological research

Authors(s) and Affiliation(s)

SASS O. (1 2) ; HAAS F. (3) ; SCHIMMER C. (2) ; HEEL M. (2) ; BREMER M. (1) ; STÖGER F. (1) ; WETZEL K.-F. (2) ;
(1) Inst. of Geography, Univ., Innsbruck, AUTRICHE
(2) Inst. of Geography, Univ., Augsburg, ALLEMAGNE
(3) Physical Geography, Catholic univ., Eichstätt-Ingolstadt, ALLEMAGNE

Abstract

The AA. investigated geomorphic processes on 2 slopes (Arnspitze and Bettelwurf) burned by wildfire in the region north of Innsbruck. Both burned in 1946 and both are still characterized by severe vegetation destruction. Their aim was to establish disturbed and undisturbed erosion rates and to decide whether recent debris flows can be assigned to these historical wildfires or not. They measured fluvial erosion by means of collectors, estimated the amount of post-fire erosion from stratigraphic exposures in the adjacent talus, modelled bedload discharge with a statistical model developed in a nearby study area and quantified recent debris flow activity by combining airborne and terrestrial laser scans. The concordance of measured and modelled yields was reasonably good; deviations may be explained by differing amounts of precipitation. These results support the impression that current debris flow activity at the Bettelwurf was enhanced by the aftermath of the 1946 wildfire

Source

Thematical fascicle

published at : Geografiska annaler. Series A. Physical geography / ISSN 0435-3676 / CODEN GAPGAP

Editor : Svenska sällskapet för antropologi och geografi, Stockholm - SUEDE (1965)

Millesime : 2012, vol. 94, no 1 [pp. 117-133]

Bibliographic references : 36 ref.

Collation : fig., tab.

Language

Anglais

INIST-CNRS, Cote INIST : 2704 A

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1111/j.1468-0459.2012.00452.x

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