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- Engelbrecht Clemmensen, KarinaSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology (author)
A tipping point in carbon storage when forest expands into tundra is related to mycorrhizal recycling of nitrogen
- Article/chapterEnglish2021
Publisher, publication year, extent ...
- 2021-03-22
- Wiley,2021
- Wiley: 12 months,2024
Numbers
- LIBRIS-ID:oai:slubar.slu.se:111313
- https://res.slu.se/id/publ/111313URI
- https://doi.org/10.1111/ele.13735DOI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- Tundra ecosystems are global belowground sinks for atmospheric CO2. Ongoing warming-induced encroachment by shrubs and trees risks turning this sink into a CO2 source, resulting in a positive feedback on climate warming. To advance mechanistic understanding of how shifts in mycorrhizal types affect long-term carbon (C) and nitrogen (N) stocks, we studied small-scale soil depth profiles of fungal communities and C-N dynamics across a subarctic-alpine forest-heath vegetation gradient. Belowground organic stocks decreased abruptly at the transition from heath to forest, linked to the presence of certain tree-associated ectomycorrhizal fungi that contribute to decomposition when mining N from organic matter. In contrast, ericoid mycorrhizal plants and fungi were associated with organic matter accumulation and slow decomposition. If climatic controls on arctic-alpine forest lines are relaxed, increased decomposition will likely outbalance increased plant productivity, decreasing the overall C sink capacity of displaced tundra.
Subject headings and genre
- NATURVETENSKAP Biologi Ekologi hsv//swe
- NATURAL SCIENCES Biological Sciences Ecology hsv//eng
Added entries (persons, corporate bodies, meetings, titles ...)
- Brandström Durling, MikaelSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology(Swepub:slu)49619 (author)
- Hallin, SaraSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology(Swepub:slu)48245 (author)
- Finlay, RogerSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology(Swepub:slu)49249 (author)
- Lindahl, BjörnSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment(Swepub:slu)50956 (author)
- Sveriges lantbruksuniversitetDepartment of Forest Mycology and Plant Pathology (creator_code:org_t)
- Sveriges lantbruksuniversitet
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- In:Ecology Letters: Wiley24, s. 1193-12041461-023X1461-0248
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