uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • 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
A lake classification concept for a more accurate global estimate of the dissolved inorganic carbon export from terrestrial ecosystems to inland waters
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.ORCID iD: 0000-0002-7416-4206
Show others and affiliations
2018 (English)In: The Science of Nature: Naturwissenschaften, ISSN 0028-1042, E-ISSN 1432-1904, Vol. 105, no 3, article id 25Article in journal (Refereed) Published
Abstract [en]

The magnitude of lateral dissolved inorganic carbon (DIC) export from terrestrial ecosystems to inland waters strongly influences the estimate of the global terrestrial carbon dioxide (CO2) sink. At present, no reliable number of this export is available, and the few studies estimating the lateral DIC export assume that all lakes on Earth function similarly. However, lakes can function along a continuum from passive carbon transporters (passive open channels) to highly active carbon transformers with efficient in-lake CO2 production and loss. We developed and applied a conceptual model to demonstrate how the assumed function of lakes in carbon cycling can affect calculations of the global lateral DIC export from terrestrial ecosystems to inland waters. Using global data on in-lake CO2 production by mineralization as well as CO2 loss by emission, primary production, and carbonate precipitation in lakes, we estimated that the global lateral DIC export can lie within the range of 0.70(-0.31)(+0.27) 1.52(-0.90)(+1.09) Pg C yr(-1) depending on the assumed function of lakes. Thus, the considered lake function has a large effect on the calculated lateral DIC export from terrestrial ecosystems to inland waters. We conclude that more robust estimates of CO2 sinks and sources will require the classification of lakes into their predominant function. This functional lake classification concept becomes particularly important for the estimation of future CO2 sinks and sources, since in-lake carbon transformation is predicted to be altered with climate change.

Place, publisher, year, edition, pages
2018. Vol. 105, no 3, article id 25
Keywords [en]
Global carbon cycle, Lake functioning, Hydrologic CO2 transport, Lake carbon cycling, Earth system models, Lake primary production
National Category
Geosciences, Multidisciplinary
Identifiers
URN: urn:nbn:se:uu:diva-347136DOI: 10.1007/s00114-018-1547-zISI: 000431443400005PubMedID: 29582138OAI: oai:DiVA.org:uu-347136DiVA, id: diva2:1193348
Funder
Swedish Research Council, 2016-04153EU, Horizon 2020, 643052Knut and Alice Wallenberg FoundationAvailable from: 2018-03-26 Created: 2018-03-26 Last updated: 2018-12-11Bibliographically approved

Open Access in DiVA

fulltext(1235 kB)69 downloads
File information
File name FULLTEXT01.pdfFile size 1235 kBChecksum SHA-512
316aeca3633c662cfc41a677b7954e0c904e676860fdd769a8a388e1839aa330bd116e76d239e0aceec3f80cc1d441cb07ce12ef44c078760233de0f9f130f68
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Authority records BETA

Engel, FabianWeyhenmeyer, Gesa A.

Search in DiVA

By author/editor
Engel, FabianWeyhenmeyer, Gesa A.
By organisation
Limnology
In the same journal
The Science of Nature: Naturwissenschaften
Geosciences, Multidisciplinary

Search outside of DiVA

GoogleGoogle Scholar
Total: 69 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
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 187 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • 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