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(Article of periodic en Anglais - 2013)

Document title

Reconstruction of modern debris flow activity in the arctic environment with the use of dwarf shrubs (south-western Spitsbergen) – a new dendrochronological approach

published at : Quaternary geomorphology in tectonically active areas with emphasis in fluvio-coastal processes

Authors(s) and Affiliation(s)

OWCZAREK P. (1) ; LATOCHA A. (1) ; WISTUBA M. (2) ; MALIK I. (2) ;
(1) Inst. of Geography and Regional Development, Wrocław, POLOGNE
(2) Fac. of Earth Sciences, Univ. of Silesia, Sosnowiec, POLOGNE

Abstract

The aim of the paper is to show the potential of tundra dwarf shrubs in dendrochronological reconstructions of debris flow activity in the High Arctic. Wood anatomy characteristics of shrubs, such as : the number of growth rings in collected specimens, the presence reaction wood and scars were evaluated for their potential in temporal reconstructions in geomorphology. The age of shrubs studied indirectly mark the minimal time, which passed since the last episode of debris flow on the studied surface. Analyses of reaction wood and scars can only support the dating of debris flows, because these anatomic features can also be developed as results of snow creeping or animal activities. There is a possibility of dating the periods of intensification in debris flow activity with the use of dendrochronology and dwarf shrubs, and with the one-year precision. The comparison of the time of debris flow occurrence with meteorological data, may, in future, allow determining the conditions of debris flow development in the High Arctic.

Source

Thematical fascicle

published at : Zeitschrift für Geomorphologie / ISSN 0372-8854 / CODEN ZGMPAG

Editor : Gebruder Borntraeger, Stuttgart - ALLEMAGNE (1925)

Millesime : 2013, vol. 57, no 3 [pp. 75-95]

Bibliographic references : 2 p.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 8829

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1127/0372-8854/2013/S-00145

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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