Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/922
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: The Impact of Climate Change on Ecosystem Carbon Dynamics at the Scandinavian Mountain Birch Forest–Tundra Heath Ecoto
Authors: Sjogersten, Sofie
Wookey, Philip
Contact Email: pw9@stir.ac.uk
Keywords: Carbon
Carbon dioxide
Climate change
Ecotone
Methane
Mountain birch
Scandinavia
Tundra heath
Issue Date: Feb-2009
Publisher: The Royal Swedish Academy of Sciences / Allen Press
Citation: Sjogersten S & Wookey P (2009) The Impact of Climate Change on Ecosystem Carbon Dynamics at the Scandinavian Mountain Birch Forest–Tundra Heath Ecotone, AMBIO: A Journal of the Human Environment, 38 (1), pp. 2-1
Abstract: Changes in temperature and moisture resulting from climate change are likely to strongly modify the ecosystem carbon sequestration capacity in high-latitude areas, both through vegetation shifts and via direct warming effects on photosynthesis and decomposition. This paper offers a synthesis of research addressing the potential impacts of climate warming on soil processes and carbon fluxes at the forest–tundra ecotone in Scandinavia. Our results demonstrated higher rates of organic matter decomposition in mountain birch forest than in tundra heath soils, with markedly shallower organic matter horizons in the forest. Field and laboratory experiments suggest that increased temperatures are likely to increase CO2 efflux from both tundra and forest soil providing moisture availability does not become limiting for the decomposition process. Furthermore, colonization of tundra heath by mountain birch forest would increase rates of decomposition, and thus CO2 emissions, from the tundra heath soils, which currently store substantial amounts of potentially labile carbon. Mesic soils underlying both forest and tundra heath are currently weak sinks of atmospheric methane, but the strength of this sink could be increased with climate warming and/or dryin
Type: Journal Article
URI: http://hdl.handle.net/1893/922
URL: http://ambio.allenpress.com/
DOI Link: http://dx.doi.org/10.1579/0044-7447-38.1.2
Rights: Copyright © (2009) Royal Swedish Academy of Sciences. From AMBIO 38:1 by Sjögersten & Wookey. Reprinted by permission of Allen Press Publishing Services.
Affiliation: University of Nottingham
Biological and Environmental Sciences

Files in This Item:
File Description SizeFormat 
Table 2.doc27 kBMicrosoft WordView/Open
Table 1.pdf18.98 kBAdobe PDFView/Open
Table 2.pdf9.27 kBAdobe PDFView/Open
Sjogersten_Wookey_Ambio(2009).doc217.5 kBMicrosoft WordView/Open
Table 1.doc35.5 kBMicrosoft WordView/Open
Sjogersten_Wookey_Ambio_2009_.pdf115.9 kBAdobe PDFView/Open
Figure 1 Decompostion.pdf19.47 kBAdobe PDFView/Open
Figure 2 Seasonal CO2.pdf36.3 kBAdobe PDFView/Open
Figure 3 NEE Re GEP.pdf65.65 kBAdobe PDFView/Open
Figure 4 Methane fluxes.pdf20.02 kBAdobe PDFView/Open
Figure 5 CH4 schematic.pdf40.16 kBAdobe PDFView/Open
Figure 6 Conceptual model.pdf60.08 kBAdobe PDFView/Open


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