Data from: Draining the pool? Carbon storage and fluxes in three alpine plant communities
Shrub communities have expanded in arctic and alpine tundra during recent decades. Changes in shrub abundance may alter ecosystem carbon (C) sequestration and storage, with potential positive or negative feedback on global C cycling. To assess potential implications of shrub expansion in different a...
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ftdryad:oai:v1.datadryad.org:10255/dryad.142896 2023-05-15T15:10:23+02:00 Data from: Draining the pool? Carbon storage and fluxes in three alpine plant communities Sørensen, Mia Vedel Strimbeck, Richard Nystuen, Kristin Odden Kapas, Rozalia Erzsebet Enquist, Brian J. Graae, Bente Jessen Norway 2017-06-06T15:45:41Z http://hdl.handle.net/10255/dryad.142896 https://doi.org/10.5061/dryad.1n50j unknown doi:10.5061/dryad.1n50j/1 doi:10.1007/s10021-017-0158-4 doi:10.5061/dryad.1n50j Sørensen MV, Strimbeck R, Nystuen KO, Kapas RE, Enquist BJ, Graae BJ (2017) Draining the pool? Carbon storage and fluxes in three alpine plant communities. Ecosystems s10021-017-0158-4. 1432-9840 http://hdl.handle.net/10255/dryad.142896 Carbon soil carbon Gross Ecosystem Photosynthesis Net Ecosystem Exchange Ecosystem Respiration Salix heath meadow tundra Empetrum Article 2017 ftdryad https://doi.org/10.5061/dryad.1n50j https://doi.org/10.5061/dryad.1n50j/1 https://doi.org/10.1007/s10021-017-0158-4 2020-01-01T15:49:15Z Shrub communities have expanded in arctic and alpine tundra during recent decades. Changes in shrub abundance may alter ecosystem carbon (C) sequestration and storage, with potential positive or negative feedback on global C cycling. To assess potential implications of shrub expansion in different alpine plant communities, we compared C fluxes and pools in one Empetrum-dominated heath, one herb- and cryptogam-dominated meadow, and one Salix-shrub community in Central Norway. Over two growing seasons, we measured Gross Ecosystem Photosynthesis, Ecosystem Respiration (ER), and C pools for above-ground vegetation, litter, roots, and soil separated into organic and mineral horizons. Both the meadow and shrub communities had higher rates of C fixation and ER, but the total ecosystem C pool in the meadow was twice that of the shrub community because of more C in the organic soil horizon. Even though the heath community had the lowest rates of C fixation, it stored one and a half times more C than the shrub community. The results indicate that the relatively high above-ground biomass sequestering C during the growing season is not associated with high C storage in shrub-dominated communities. Instead, shrub-dominated areas may be draining the carbon-rich alpine soils because of high rates of decomposition. These processes were not shown by mid-growing season C fluxes, but were reflected by the very different distribution of C pools in the three habitats. Article in Journal/Newspaper Arctic Tundra Dryad Digital Repository (Duke University) Arctic Norway |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Carbon soil carbon Gross Ecosystem Photosynthesis Net Ecosystem Exchange Ecosystem Respiration Salix heath meadow tundra Empetrum |
spellingShingle |
Carbon soil carbon Gross Ecosystem Photosynthesis Net Ecosystem Exchange Ecosystem Respiration Salix heath meadow tundra Empetrum Sørensen, Mia Vedel Strimbeck, Richard Nystuen, Kristin Odden Kapas, Rozalia Erzsebet Enquist, Brian J. Graae, Bente Jessen Data from: Draining the pool? Carbon storage and fluxes in three alpine plant communities |
topic_facet |
Carbon soil carbon Gross Ecosystem Photosynthesis Net Ecosystem Exchange Ecosystem Respiration Salix heath meadow tundra Empetrum |
description |
Shrub communities have expanded in arctic and alpine tundra during recent decades. Changes in shrub abundance may alter ecosystem carbon (C) sequestration and storage, with potential positive or negative feedback on global C cycling. To assess potential implications of shrub expansion in different alpine plant communities, we compared C fluxes and pools in one Empetrum-dominated heath, one herb- and cryptogam-dominated meadow, and one Salix-shrub community in Central Norway. Over two growing seasons, we measured Gross Ecosystem Photosynthesis, Ecosystem Respiration (ER), and C pools for above-ground vegetation, litter, roots, and soil separated into organic and mineral horizons. Both the meadow and shrub communities had higher rates of C fixation and ER, but the total ecosystem C pool in the meadow was twice that of the shrub community because of more C in the organic soil horizon. Even though the heath community had the lowest rates of C fixation, it stored one and a half times more C than the shrub community. The results indicate that the relatively high above-ground biomass sequestering C during the growing season is not associated with high C storage in shrub-dominated communities. Instead, shrub-dominated areas may be draining the carbon-rich alpine soils because of high rates of decomposition. These processes were not shown by mid-growing season C fluxes, but were reflected by the very different distribution of C pools in the three habitats. |
format |
Article in Journal/Newspaper |
author |
Sørensen, Mia Vedel Strimbeck, Richard Nystuen, Kristin Odden Kapas, Rozalia Erzsebet Enquist, Brian J. Graae, Bente Jessen |
author_facet |
Sørensen, Mia Vedel Strimbeck, Richard Nystuen, Kristin Odden Kapas, Rozalia Erzsebet Enquist, Brian J. Graae, Bente Jessen |
author_sort |
Sørensen, Mia Vedel |
title |
Data from: Draining the pool? Carbon storage and fluxes in three alpine plant communities |
title_short |
Data from: Draining the pool? Carbon storage and fluxes in three alpine plant communities |
title_full |
Data from: Draining the pool? Carbon storage and fluxes in three alpine plant communities |
title_fullStr |
Data from: Draining the pool? Carbon storage and fluxes in three alpine plant communities |
title_full_unstemmed |
Data from: Draining the pool? Carbon storage and fluxes in three alpine plant communities |
title_sort |
data from: draining the pool? carbon storage and fluxes in three alpine plant communities |
publishDate |
2017 |
url |
http://hdl.handle.net/10255/dryad.142896 https://doi.org/10.5061/dryad.1n50j |
op_coverage |
Norway |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_relation |
doi:10.5061/dryad.1n50j/1 doi:10.1007/s10021-017-0158-4 doi:10.5061/dryad.1n50j Sørensen MV, Strimbeck R, Nystuen KO, Kapas RE, Enquist BJ, Graae BJ (2017) Draining the pool? Carbon storage and fluxes in three alpine plant communities. Ecosystems s10021-017-0158-4. 1432-9840 http://hdl.handle.net/10255/dryad.142896 |
op_doi |
https://doi.org/10.5061/dryad.1n50j https://doi.org/10.5061/dryad.1n50j/1 https://doi.org/10.1007/s10021-017-0158-4 |
_version_ |
1766341430115041280 |