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(Article of periodic en Anglais - 2009)

Document title

Patterns in vegetation composition, surface height and thaw depth in polygon mires in the Yakutian Arctic (NE Siberia) : a microtopographical characterisation of the active layer

published at : The Permafrost Young Researchers Network (PYRN). Special issue

Authors(s) and Affiliation(s)

MINKE M. (1) ; DONNER N. (1) ; KARPOV N. (2) ; DE KLERK P. (1) ; JOOSTEN H. (1) ;
(1) Inst. of Botany and Landscape Ecology, Ernst-Moritz-Arndt Univ., Greifswald, ALLEMAGNE
(2) Inst. of Biological Problems of the Cryolithozone (SD RAS), Yakutsk, RUSSIE, FEDERATION DE

Abstract

This paper presents a microtopographical characterisation of the active layer, mapping of two low-centred ice-wedge polygons in the Yakutian tundra (NE Siberia) along a regular grid with 1-m spacing. The results revealed large spatial variability in thaw depths and strong correlation with relief, water and vegetation. Average thaw depths in polygon ridges (23 cm and 31 cm) were smaller than in depressions (33 cm and 40 cm, respectively). The greatest thaw depths, however, were also found in the ridges and probably result from thermal erosion by water flow

Source

Thematical fascicle

published at : Permafrost and periglacial processes / ISSN 1045-6740 / CODEN PEPPED

Editor : Wiley, Chichester - ROYAUME-UNI (1990)

Millesime : 2009, vol. 20, no 4 [pp. 357-368]

Bibliographic references : 1,5 p.

Collation : fig., tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.663

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