Alternative title
PERMTHAW
Creator/Principal investigator(s)
Mats P. Björkman
- University of Gothenburg, Department of Earth Sciences
Christoph Keuschnig
- École Centrale de Lyon, Environmental Microbial Genomics, Laboratoire Ampère
Catherine Larose
- École Centrale de Lyon, Environmental Microbial Genomics, Laboratoire Ampère
Robert G. Björk
- University of Gothenburg, Department of Earth Sciences
Description
Permafrost soils contain approximately 1672 petagram carbon (C), twice the amount of the current atmosphere, and constitute 50% of the world’s belowground C pool. Along with the current change in climate these high latitudinal soils experience increased temperatures, more than any other region, with permafrost degradation as a result. Such thaw of permafrost releases ancient organic matter that has been stored in the frozen soils for centuries. Following microbial degradation, this organic matter can be released to the atmosphere as carbon dioxide (CO2) and methane (CH4), further influencing the climate systems. Thus, a changed climate leads to server alterations of the carbon (C) balance in Arctic and high altitude ecosystems. However, research up to today has mostly focused on the impact of permafrost thaw and the time horizon immediately following this degradation.
This project aims for understanding the future that lies ahead, following thaw and establishment of new non-permafrost ecosystems, and how the predicted climate variability will influence these soils on a decadal timescale. By
Language
English
Research principal
Responsible department/unit
Department of Earth Sciences
Contributor(s)
Bo Elberling
- University of Copenhagen, Center for Permafrost (CENPERM), Department of Geosciences and Natural Resource Management
Argus Pesqueda - University of Gothenburg, Department of Earth Sciences
Stéphane Doleac - University of Gothenburg, Department of Earth Sciences
Leif Klemedtsson
- University of Gothenburg, Department of Earth Sciences
Mario Rudner - University of Gothenburg, Department of Earth Sciences
Data contains personal data
No
Time period(s) investigated
2016 – 2018
Research area
Climate Research, Environmental Sciences, Microbiology, Ecology
(The Swedish standard of fields of research 2011)
Biota, Environment
(INSPIRE topic categories)
Molau, U. (2010). Long-term impacts of observed and induced climate change on tussock tundra near its southern limit in northern Sweden. In PLANT ECOLOGY & DIVERSITY (Vol. 3, Issue 1, pp. 29–34).
DOI:
https://doi.org/10.1080/17550874.2010.487548
Keuschnig, C., Larose, C., Rudner, M., Pesqueda, A., Doleac, S., Elberling, B., Björk, R. G., Klemedtsson, L., & Björkman, M. P. (2022). Reduced methane emissions in former permafrost soils driven by vegetation and microbial changes following drainage. Global Change Biology, 00, 1– 15. https://doi.org/10.1111/gcb.16137
DOI:
https://doi.org/10.1111/gcb.16137
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Description
Site description:
Two tussock tundra sites was used in this study: at lake Latnjajaure (68°21.2’N, 18°29.3’E and 981 m a.s.l.) and at lake Corrvosjávri (68°24.9’N, 18°38.1’E, and 814 m a.s.l.). Both sites and the initial vegetation description and method for vegetation survey (repeated in this study) are described in Molau 2010.
At each site 9 soil collar (diameter of 20cm) was installed in groups of three.
Data:
Vegetation data, see Molau 2010.
CH4 and CO2 measurements were conducted with an u
Version 1
https://doi.org/10.5878/q65n-vv46
Citation
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Data format / data structure
Numeric
Creator/Principal investigator(s)
Mats P. Björkman
- University of Gothenburg, Department of Earth Sciences
Christoph Keuschnig
- École Centrale de Lyon, Environmental Microbial Genomics, Laboratoire Ampère
Robert G. Björk
- University of Gothenburg, Department of Earth Sciences
Catherine Larose
- École Centrale de Lyon, Environmental Microbial Genomics, Laboratoire Ampère
Time period(s) investigated
2016 – 2018