Change search
ReferencesLink to record
Permanent link

Direct link
Greenhouse gas production in low-latitude lake sediments responds strongly to warming
University of Federal Fluminense, Brazil University of Federal Rio de Janeiro, Brazil .
University of Federal Rio de Janeiro, Brazil .
Uppsala University, Sweden Princeton University, NJ 08544 USA .
Linköping University, The Tema Institute, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences.
Show others and affiliations
2014 (English)In: Nature Climate Change, ISSN 1758-678X, E-ISSN 1758-6798, Vol. 4, no 6, 467-470 p.Article in journal (Refereed) Published
Abstract [en]

Inland water sediments receive large quantities of terrestrial organic matter(1-5) and are globally important sites for organic carbon preservation(5,6). Sediment organic matter mineralization is positively related to temperature across a wide range of high-latitude ecosystems(6-10), but the situation in the tropics remains unclear. Here we assessed temperature effects on the biological production of CO2 and CH4 in anaerobic sediments of tropical lakes in the Amazon and boreal lakes in Sweden. On the basis of conservative regional warming projections until 2100 (ref. 11), we estimate that sediment CO2 and CH4 production will increase 9-61% above present rates. Combining the CO2 and CH4 as CO2 equivalents (CO(2)eq; ref. 11), the predicted increase is 2.4-4.5 times higher in tropical than boreal sediments. Although the estimated lake area in low latitudes is 3.2 times smaller than that of the boreal zone, we estimate that the increase in gas production from tropical lake sediments would be on average 2.4 times higher for CO2 and 2.8 times higher for CH4. The exponential temperature response of organic matter mineralization, coupled with higher increases in the proportion of CH4 relative to CO2 on warming, suggests that the production of greenhouse gases in tropical sediments will increase substantially. This represents a potential large-scale positive feedback to climate change.

Place, publisher, year, edition, pages
Nature Publishing Group, 2014. Vol. 4, no 6, 467-470 p.
National Category
Social Sciences
URN: urn:nbn:se:liu:diva-108800DOI: 10.1038/NCLIMATE2222ISI: 000337138700022OAI: diva2:732911
Available from: 2014-07-07 Created: 2014-07-06 Last updated: 2014-11-04Bibliographically approved

Open Access in DiVA

Fulltext + supplement(1076 kB)377 downloads
File information
File name FULLTEXT01.pdfFile size 1076 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Bastviken, DavidEnrich Prast, Alex
By organisation
Department of Water and Environmental StudiesFaculty of Arts and Sciences
In the same journal
Nature Climate Change
Social Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 377 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

Altmetric score

Total: 219 hits
ReferencesLink to record
Permanent link

Direct link