Comparison of hydrochemistry and organic compound transport in two non-glaciated high Arctic catchments with a permafrost regime (Bellsund Fjord, Spitsbergen) - Publication - Bridge of Knowledge

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Comparison of hydrochemistry and organic compound transport in two non-glaciated high Arctic catchments with a permafrost regime (Bellsund Fjord, Spitsbergen)

Abstract

An increase in air temperature related to climate change results in the retreat of glaciers, the degradation of permafrost, and the expansion of glacier-free areas in the polar regions. All these processes lead to changes in the Arctic landscape. They influence the hydrochemistry of streams and rivers fed by glaciers and thawing permafrost. In this study, we examine eighty two water samples from two non-glaciated catchments with snow-permafrost regime: the Tyvjobekken Creek and the Reindeer Creek (NW Wedel-Jarlsberg Land, Spitsbergen). We cover hydrometeorological measurements, fluctuations of physicochemical parameters (pH, specific electrolytic conductivity (SEC)), and the presence of selected organic compounds (dissolved organic carbon (DOC), formaldehyde (HCHO), ∑phenols). The obtained levels of DOC (0.061-0.569 mgC L-1) and HCHO (0.40). The Tyvjobekken Creek catchment, in contrast to Reindeer Creek catchment, turned out to be resistant to rapid changes in meteorological conditions (r <0.10) and surface runoff. The processes of permafrost thawing, calcium carbonate dissolution, and biogeochemical “breathing” of soils proved to be crucial for the development of water chemistry. In conclusion, the surface water chemistry of the Reindeer Creek was found to result from the mutual influence of hydrometeorological indices and the biogeochemical environment of the catchment.

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DOI:
Digital Object Identifier (open in new tab) 10.1016/j.scitotenv.2017.09.064
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Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
SCIENCE OF THE TOTAL ENVIRONMENT no. 613-614, pages 1037 - 1047,
ISSN: 0048-9697
Language:
English
Publication year:
2018
Bibliographic description:
Lehmann-Konera S., Franczak ł., Kociuba w., Szumińska D., Chmiel S., Polkowska Ż.: Comparison of hydrochemistry and organic compound transport in two non-glaciated high Arctic catchments with a permafrost regime (Bellsund Fjord, Spitsbergen)// SCIENCE OF THE TOTAL ENVIRONMENT. -Vol. 613-614, (2018), s.1037-1047
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.scitotenv.2017.09.064
Verified by:
Gdańsk University of Technology

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