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Disturbance, geomorphic processes and recovery of wildfire slopes in North Tyrol

Auteur(s) et Affiliation(s)

SASS, O.
Inst. of Geography, Karl-Franzens-Univ., Graz, Autriche
HEEL, M.
Fac. of Applied Informatics, Inst of Geography, Univ., Augsburg, Allemagne
LEISTNER, I.
Geo- and Atmospheric Sciences, Inst. of Geography, Innsbruck, Autriche
STÖGER, F.
Geo- and Atmospheric Sciences, Inst. of Geography, Innsbruck, Autriche
WETZEL, K.-F.
Fac. of Applied Informatics, Inst of Geography, Univ., Augsburg, Allemagne
FRIEDMANN, A.
Fac. of Applied Informatics, Inst of Geography, Univ., Augsburg, Allemagne


Description :
The area of investigation comprises the central part of the North Tyrolean Limestone Alps, north and south of the German-Austrian border. Historical archives are analysed to determine the frequency of historical wildfires, as well as mapping vegetation regeneration on 20 slopes of different post-fire ages, and soil erosion measurements on 2 slopes. It is highlighted that vegetation regeneration takes an extremely long time under unfavourable conditions and that soil erosion constantly increases in the years after the fires. A two-part vegetation regeneration model is proposed depending upon the degree of soil loss. It is observed that after severe soil destruction the slopes may remain degraded for a century or longer, before rather rapid regeneration occurs. The reasons are not fully understood but are probably governed by geomorphic process intensity.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2012, vol. 37, n°. 8, p. 883-894, nombre de pages : 12, Références bibliographiques : 1 p.

Date :
2012

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

Langue :
Anglais
Droits :
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