A tipping-point in carbon storage when forest expands into tundra is related to mycorrhizal recycling of nitrogen ...
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...
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Dryad
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Online Access: | https://dx.doi.org/10.5061/dryad.79cnp5htw https://datadryad.org/stash/dataset/doi:10.5061/dryad.79cnp5htw |
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ftdatacite:10.5061/dryad.79cnp5htw 2024-02-04T09:56:59+01:00 A tipping-point in carbon storage when forest expands into tundra is related to mycorrhizal recycling of nitrogen ... Clemmensen, Karina E Durling, Mikael B Michelsen, Anders Hallin, Sara Finlay, Roger D Lindahl, Björn D 2021 https://dx.doi.org/10.5061/dryad.79cnp5htw https://datadryad.org/stash/dataset/doi:10.5061/dryad.79cnp5htw en eng Dryad https://dx.doi.org/10.1111/ele.13735 Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 FOS Biological sciences Fungal community Ectomycorrhizal fungal community ectomycorrhizal exploration type soil carbon storage Climate feedback ITS2 meta-barcoding litter bags litter saprotrophs C-N dynamics soil profiles mycorrhizal type Ericoid Mycorrhiza treeline ecotone Arctic greening functional genes quantitative PCR soil solution ergosterol Dataset dataset 2021 ftdatacite https://doi.org/10.5061/dryad.79cnp5htw10.1111/ele.13735 2024-01-05T01:14:15Z 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-associateds 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 ... : Soil samples were taken in 24 plots representing four vegetation types along a subarctic-alpine birch forest-heath tundra ecotone in Northern Sweden. Soil cores were split into fine-scaled layers, which were analysed for various biochemical characteristics and for fungal communities based on ITS2 meta-barcoding. Please find all details on sampling and analyses in the associated paper. ... Dataset Arctic Greening Arctic Northern Sweden Subarctic Tundra DataCite Metadata Store (German National Library of Science and Technology) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
FOS Biological sciences Fungal community Ectomycorrhizal fungal community ectomycorrhizal exploration type soil carbon storage Climate feedback ITS2 meta-barcoding litter bags litter saprotrophs C-N dynamics soil profiles mycorrhizal type Ericoid Mycorrhiza treeline ecotone Arctic greening functional genes quantitative PCR soil solution ergosterol |
spellingShingle |
FOS Biological sciences Fungal community Ectomycorrhizal fungal community ectomycorrhizal exploration type soil carbon storage Climate feedback ITS2 meta-barcoding litter bags litter saprotrophs C-N dynamics soil profiles mycorrhizal type Ericoid Mycorrhiza treeline ecotone Arctic greening functional genes quantitative PCR soil solution ergosterol Clemmensen, Karina E Durling, Mikael B Michelsen, Anders Hallin, Sara Finlay, Roger D Lindahl, Björn D A tipping-point in carbon storage when forest expands into tundra is related to mycorrhizal recycling of nitrogen ... |
topic_facet |
FOS Biological sciences Fungal community Ectomycorrhizal fungal community ectomycorrhizal exploration type soil carbon storage Climate feedback ITS2 meta-barcoding litter bags litter saprotrophs C-N dynamics soil profiles mycorrhizal type Ericoid Mycorrhiza treeline ecotone Arctic greening functional genes quantitative PCR soil solution ergosterol |
description |
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-associateds 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 ... : Soil samples were taken in 24 plots representing four vegetation types along a subarctic-alpine birch forest-heath tundra ecotone in Northern Sweden. Soil cores were split into fine-scaled layers, which were analysed for various biochemical characteristics and for fungal communities based on ITS2 meta-barcoding. Please find all details on sampling and analyses in the associated paper. ... |
format |
Dataset |
author |
Clemmensen, Karina E Durling, Mikael B Michelsen, Anders Hallin, Sara Finlay, Roger D Lindahl, Björn D |
author_facet |
Clemmensen, Karina E Durling, Mikael B Michelsen, Anders Hallin, Sara Finlay, Roger D Lindahl, Björn D |
author_sort |
Clemmensen, Karina E |
title |
A tipping-point in carbon storage when forest expands into tundra is related to mycorrhizal recycling of nitrogen ... |
title_short |
A tipping-point in carbon storage when forest expands into tundra is related to mycorrhizal recycling of nitrogen ... |
title_full |
A tipping-point in carbon storage when forest expands into tundra is related to mycorrhizal recycling of nitrogen ... |
title_fullStr |
A tipping-point in carbon storage when forest expands into tundra is related to mycorrhizal recycling of nitrogen ... |
title_full_unstemmed |
A tipping-point in carbon storage when forest expands into tundra is related to mycorrhizal recycling of nitrogen ... |
title_sort |
tipping-point in carbon storage when forest expands into tundra is related to mycorrhizal recycling of nitrogen ... |
publisher |
Dryad |
publishDate |
2021 |
url |
https://dx.doi.org/10.5061/dryad.79cnp5htw https://datadryad.org/stash/dataset/doi:10.5061/dryad.79cnp5htw |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Greening Arctic Northern Sweden Subarctic Tundra |
genre_facet |
Arctic Greening Arctic Northern Sweden Subarctic Tundra |
op_relation |
https://dx.doi.org/10.1111/ele.13735 |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_doi |
https://doi.org/10.5061/dryad.79cnp5htw10.1111/ele.13735 |
_version_ |
1789961300058570752 |