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Carbon dioxide and methane emissions of Swedish low-order streams: a national estimate and lessons learnt from more than a decade of observations
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2018 (English)In: Limnology and oceanography Letters, E-ISSN 2378-2242, Vol. 3, no 3, p. 156-167Article in journal (Refereed) Published
Abstract [en]

Low-order streams are suggested to dominate the atmospheric CO2 source of all inland waters. Yet, many large-scale stream estimates suffer from methods not designed for gas emission determination and rarely include other greenhouse gases such as CH4. Here, we present a compilation of directly measured CO2 and CH4 concentration data from Swedish low-order streams (> 1600 observations across > 500 streams) covering large climatological and land-use gradients. These data were combined with an empirically derived gas transfer model and the characteristics of a ca. 400,000 km stream network covering the entire country. The total stream CO2 and CH4 emission corresponded to 2.7 Tg C yr(-1) (95% confidence interval: 2.0-3.7) of which the CH4 accounted for 0.7% (0.02 Tg C yr(-1)). The study highlights the importance of low-order streams, as well as the critical need to better represent variability in emissions and stream areal extent to constrain future stream C emission estimates.

Place, publisher, year, edition, pages
John Wiley & Sons, 2018. Vol. 3, no 3, p. 156-167
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:umu:diva-156342DOI: 10.1002/lol2.10061ISI: 000456696200012OAI: oai:DiVA.org:umu-156342DiVA, id: diva2:1288118
Note

Special Issue: Carbon cycling in inland waters: Progress and perspectives

Available from: 2019-02-12 Created: 2019-02-12 Last updated: 2019-02-12Bibliographically approved

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Lundin, Erik J

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Audet, JoachimLundin, Erik JLofgren, Stefan
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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