Skip to Main Content
Influence of climate change factors on carbon dynamics in northern forested peatlandsAuthor(s): C.C Trettin; R. Laiho; K. Minkkinen; J. Laine
Source: Canadian Journal Of Soil Science, Vol. 86: 269-280
Publication Series: Miscellaneous Publication
PDF: View PDF (1.55 MB)
DescriptionPeatlands are carbon-accumulating wetland ecosystems, developed through an imbalance among organic matter production and decomposition processes. Soil saturation is the principal cause of anoxic conditions that constrain organic matter decay. Accordingly, changes in the hydrologic regime will affect the carbon (C) dynamics in forested peatlands. Our objective is to review ecological studies and experiments on managed peatlands that provide a basis for assessing the effects of an altered hydrology on C dynamics. We conclude that climate change influences will be mediated primarily through the hydrologic cycle. A lower water table resulting from altered precipitation patterns and increased atmospheric temperature may be expected to decrease soil CH4 and increase C02 emissions from the peat surface. Correspondingly, the C balance in forested peatlands is also sensitive to management and restoration prescriptions. Increases in soil C02 efflux do not necessarily equate with net losses from the soil C pool. While the fundamentals of the C balance in peatlands are well-established, the combined affects of global change stressors and management practices are best considered using process-based biogeochemical models. Long-term studies are needed both for validation and to provide a framework for longitudinal assessments of the peatland C cycle.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationTrettin, C.C; Laiho, R.; Minkkinen, K.; Laine, J. 2005. Influence of climate change factors on carbon dynamics in northern forested peatlands. Canadian Journal Of Soil Science, Vol. 86: 269-280
Keywordspeatland, carbon cycle, methane, forest, wetland
- Direct human impacts on the peatland carbon sink
- Linkage of mike she to wetland-dndc for carbon budgeting and anaerobic biogeochemistry simulation
- The effects of permafrost thaw on soil hydrologic, thermal, and carbon dynamics in an Alaskan peatland
XML: View XML