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(Article of periodic en Anglais - 2005)

Document title

The influence of thermokarst disturbance on the water quality of small upland lakes, Mackenzie Delta region, Northwest Territories, Canada

Authors(s) and Affiliation(s)

KOKELJ S.V. ; JENKINS R.E. ; MILBURN D. ; BURN C.R. ; SNOW N. ;

Abstract

Chemical data are presented for water from 22 lakes in small upland catchments (<20 ha) between Inuvik and Richards Island. Eleven of the basins appear pristine and 11 are affected by thermokarst slumping. The mean dissolved organic carbon (DOC) concentration of the pristine lakes is greater than the mean concentration of lakes disturbed by thermokarst slumping. Soluble materials released from degrading permafrost are transported to lakes by surface runoff, elevating concentrations in lake water. The percentage of total basin area influenced by thermokarst is positively associated with ionic concentrations in lake water and inversely related to DOC

Source

Article of periodic

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

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

Millesime : 2005, vol. 16, no4 [pp. 343-353]

Bibliographic references : 38 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2006.
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