Change search
ReferencesLink to record
Permanent link

Direct link
The response of a mid- and high latitude peat bog to predicted climate change: methane production in a 12-month peat incubation
Show others and affiliations
2014 (English)In: Mitigation and Adaptation Strategies for Global Change, ISSN 1381-2386, E-ISSN 1573-1596, Vol. 19, no 7, 997-1010 p.Article in journal (Refereed) Published
Abstract [en]

There are fears that global warming will lead to degradation of peatlands, higher emissions of greenhouse gases from peat, and accelerated warming. Anaerobic decomposition of organic soils produces methane (CH4), a potent greenhouse gas. Two peat bogs differing in mean annual temperature, Velke Darko (VD, Czech Republic, 7.2 A degrees C), and Stor myran (SA, Sweden, 4.0 A degrees C), were selected for a comparative study of how organic soils in different climatic zones will respond to warmer and drier conditions. Twenty peat cores from each bog were incubated in growth chambers. Under present-day summer conditions, VD produced 14 times more CH4 than SA. Two different warming scenarios were used. Peat-core replicates were kept at temperatures of 11 versus 16 A degrees C, and 11 versus 22 A degrees C. From 11 to 16 A degrees C, the CH4 production slightly decreased at SA, and slightly increased at VD. From 11 to 22 A degrees C, the CH4 production increased 9 times at SA, but slightly decreased at VD. After an 8-month incubation, peat cores under drying conditions (water table at -14 cm) were compared to samples with original water table (-2 cm). Drying conditions led to a steeper reduction in CH4 production at VD, compared to SA. The CH4 production decreased more than 100 times at VD. Then, the combined effect of simultaneous warming and drying at 11 and 22 A degrees C was studied. We did not find any significant effect of interactions between increasing temperature and decreasing water table level. Overall, the warmer site VD responded more strongly to the simulated climate change than the colder site SA.

Place, publisher, year, edition, pages
Springer, 2014. Vol. 19, no 7, 997-1010 p.
Keyword [en]
Climate change, Methane, Wetland, Sphagnum, Greenhouse gas
National Category
Earth and Related Environmental Sciences Ecology
URN: urn:nbn:se:umu:diva-94910DOI: 10.1007/s11027-013-9456-0ISI: 000342180000005OAI: diva2:760196
Available from: 2014-11-03 Created: 2014-10-20 Last updated: 2016-05-19Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Bindler, Richard
By organisation
Department of Ecology and Environmental Sciences
In the same journal
Mitigation and Adaptation Strategies for Global Change
Earth and Related Environmental SciencesEcology

Search outside of DiVA

GoogleGoogle Scholar
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: 134 hits
ReferencesLink to record
Permanent link

Direct link