Show simple item record Sørensen, Mia Vedel Strimbeck, Richard Nystuen, Kristin Odden Kapas, Rozalia Erzsebet Enquist, Brian J. Graae, Bente Jessen
dc.coverage.spatial Norway 2017-06-06T15:45:41Z 2017-06-06T15:45:41Z 2017-05-30
dc.identifier doi:10.5061/dryad.1n50j
dc.identifier.citation 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.
dc.identifier.issn 1432-9840
dc.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.
dc.relation.haspart doi:10.5061/dryad.1n50j/1
dc.relation.isreferencedby doi:10.1007/s10021-017-0158-4
dc.subject Carbon
dc.subject soil carbon
dc.subject Gross Ecosystem Photosynthesis
dc.subject Net Ecosystem Exchange
dc.subject Ecosystem Respiration
dc.subject Salix
dc.subject heath
dc.subject meadow
dc.subject tundra
dc.subject Empetrum
dc.title Data from: Draining the pool? Carbon storage and fluxes in three alpine plant communities
dc.type Article
dc.contributor.correspondingAuthor Sørensen, Mia V.
prism.publicationName Ecosystems

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Title Carbon and Nitrogen storage and CO2 fluxes in alpine plant communities
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Description Field data of C and N pools (in above-ground vegetation, litter, roots, and soil separated into organic and mineral horizons) and CO2 fluxes (including Net Ecosystem Exchange, Ecosystem Respiration and Gross Ecosystem Photosynthesis) and the environment (such as light, moisture, and air, surface, and soil temperature) during measurements. The data is processed in R core Team 2015.
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