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(Article of periodic en Anglais - 2010)

Document title

Dendrogeomorphic reconstruction of past debris-flow activity using injured broad-leaved trees

Authors(s) and Affiliation(s)

ARBELLAY E. (1 2) ; STOFFEL M. (1 2) ; BOLLSCHWEILER M. (1 2) ;
(1) Lab. of Dendrogeomorphology, Inst. of Geological Sciences, Univ., Berne, SUISSE
(2) Dep. for Environmental Sciences, Univ., Genève, SUISSE

Abstract

This study aimed at dating the occurrence of former debris flows from growth series of broad-leaved trees and at determining their suitability for dendrogeomorphic research. Results were obtained from gray alder, silver birch and pubescent birch, aspen, white poplar, black poplar and gray poplar, goat willow and black elder injured by debris-flow activity at Illgraben (Valais, Swiss Alps). Tree-ring analysis of increment cores, wedges and cross-sections from injured broad-leaved trees allowed the reconstruction of debris-flow events between AD 1965 and 2007. These events were compared with archival records on debris-flow activity at Illgraben. Results and discussion. Identification of 6 patterns of debris-flow routing and determination of preferential breakout locations of events

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2010, vol. 35, no4 [pp. 399-406]

Bibliographic references : 37 ref.

Collation : 5 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1934

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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