umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Permafrost and lakes control river isotope composition across a boreal Arctic transect in the Western Siberian lowlands
Show others and affiliations
2018 (English)In: Environmental Research Letters, ISSN 1748-9326, E-ISSN 1748-9326, Vol. 13, no 3, p. =20-=20, article id 034028Article in journal (Refereed) Published
Abstract [en]

The Western Siberian Lowlands (WSL) store large quantities of organic carbon that will be exposed and mobilized by the thawing of permafrost. The fate of mobilized carbon, however, is not well understood, partly because of inadequate knowledge of hydrological controls in the region which has a vast low-relief surface area, extensive lake and wetland coverage and gradually increasing permafrost influence. We used stable water isotopes to improve our understanding of dominant landscape controls on the hydrology of the WSL. We sampled rivers along a 1700 km South-North transect from permafrost-free to continuous permafrost repeatedly over three years, and derived isotope proxies for catchment hydrological responsiveness and connectivity. We found correlations between the isotope proxies and catchment characteristics, suggesting that lakes and wetlands are intimately connected to rivers, and that permafrost increases the responsiveness of the catchment to rainfall and snowmelt events, reducing catchment mean transit times. Our work provides rare isotope-based field evidence that permafrost and lakes/wetlands influence hydrological pathways across a wide range of spatial scales (10-105 km2) and permafrost coverage (0%-70%). This has important implications, because both permafrost extent and lake/wetland coverage are affected by permafrost thaw in the changing climate. Changes in these hydrological landscape controls are likely to alter carbon export and emission via inland waters, which may be of global significance.

Place, publisher, year, edition, pages
2018. Vol. 13, no 3, p. =20-=20, article id 034028
Keywords [en]
stable water isotopes, Western Siberia Lowlands, mean transit time, hydrological connectivity, permafrost
National Category
Oceanography, Hydrology and Water Resources
Identifiers
URN: urn:nbn:se:umu:diva-146150DOI: 10.1088/1748-9326/aaa4feISI: 000426518100004OAI: oai:DiVA.org:umu-146150DiVA, id: diva2:1203572
Available from: 2018-05-03 Created: 2018-05-03 Last updated: 2018-06-09Bibliographically approved

Open Access in DiVA

fulltext(5417 kB)13 downloads
File information
File name FULLTEXT01.pdfFile size 5417 kBChecksum SHA-512
70e9fa579877a912d442ec04ee7fb550885287e1f2786124c04896d5ae3d8ab52b40b3c34647907bb69ec6655d6fd14e8298e52265f63eecf06f8ca094670f51
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Authority records BETA

Karlsson, JanSerikova, Svetlana

Search in DiVA

By author/editor
Karlsson, JanSerikova, Svetlana
By organisation
Department of Ecology and Environmental Sciences
In the same journal
Environmental Research Letters
Oceanography, Hydrology and Water Resources

Search outside of DiVA

GoogleGoogle Scholar
Total: 13 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 112 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf