Mots-clés
Alpes Autriche Dynamique de la végétation Dégradation de l'environnement Ecosystème Erosion des sols Feu Modèle de régénération Montagne Tirol Alps (The) Austria Ecosystem Environmental degradation Fire Mountain Regeneration model Soil erosion Tirol Vegetation dynamics Alpes Austria Degradación del medio ambiente Dinámica de la vegetación Ecosistema Erosión de los suelos Fuego Montaña TirolDisturbance, 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
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)