Microscale drivers of summer CO(2) fluxes in the Svalbard High Arctic tundra
High-Arctic ecosystems are strongly affected by climate change, and it is still unclear whether they will become a carbon source or sink in the next few decades. In turn, such knowledge gaps on the drivers and the processes controlling CO(2) fluxes and storage make future projections of the Arctic c...
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ftpubmed:oai:pubmedcentral.nih.gov:8760244 2023-05-15T14:48:11+02:00 Microscale drivers of summer CO(2) fluxes in the Svalbard High Arctic tundra Magnani, Marta Baneschi, Ilaria Giamberini, Mariasilvia Raco, Brunella Provenzale, Antonello 2022-01-14 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8760244/ http://www.ncbi.nlm.nih.gov/pubmed/35031661 https://doi.org/10.1038/s41598-021-04728-0 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8760244/ http://www.ncbi.nlm.nih.gov/pubmed/35031661 http://dx.doi.org/10.1038/s41598-021-04728-0 © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Sci Rep Article Text 2022 ftpubmed https://doi.org/10.1038/s41598-021-04728-0 2022-01-23T01:39:33Z High-Arctic ecosystems are strongly affected by climate change, and it is still unclear whether they will become a carbon source or sink in the next few decades. In turn, such knowledge gaps on the drivers and the processes controlling CO(2) fluxes and storage make future projections of the Arctic carbon budget a challenging goal. During summer 2019, we extensively measured CO(2) fluxes at the soil–vegetation–atmosphere interface, together with basic meteoclimatic variables and ecological characteristics in the Bayelva river basin near Ny Ålesund, Spitzbergen, Svalbard (NO). By means of multi-regression models, we identified the main small-scale drivers of CO(2) emission (Ecosystem Respiration, ER), and uptake (Gross Primary Production, GPP) in this tundra biome, showing that (i) at point scale, the temporal variability of fluxes is controlled by the classical drivers, i.e. air temperature and solar irradiance respectively for ER and GPP, (ii) at site scale, the heterogeneity of fractional vegetation cover, soil moisture and vegetation type acted as additional source of variability for both CO(2) emissions and uptake. The assessment of the relative importance of such drivers in the multi-regression model contributes to a better understanding of the terrestrial carbon dioxide exchanges and of Critical Zone processes in the Arctic tundra. Text Arctic Climate change Ny Ålesund Ny-Ålesund Spitzbergen Svalbard Tundra PubMed Central (PMC) Arctic Bayelva ENVELOPE(11.898,11.898,78.933,78.933) Ny-Ålesund Svalbard Scientific Reports 12 1 |
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Article Magnani, Marta Baneschi, Ilaria Giamberini, Mariasilvia Raco, Brunella Provenzale, Antonello Microscale drivers of summer CO(2) fluxes in the Svalbard High Arctic tundra |
topic_facet |
Article |
description |
High-Arctic ecosystems are strongly affected by climate change, and it is still unclear whether they will become a carbon source or sink in the next few decades. In turn, such knowledge gaps on the drivers and the processes controlling CO(2) fluxes and storage make future projections of the Arctic carbon budget a challenging goal. During summer 2019, we extensively measured CO(2) fluxes at the soil–vegetation–atmosphere interface, together with basic meteoclimatic variables and ecological characteristics in the Bayelva river basin near Ny Ålesund, Spitzbergen, Svalbard (NO). By means of multi-regression models, we identified the main small-scale drivers of CO(2) emission (Ecosystem Respiration, ER), and uptake (Gross Primary Production, GPP) in this tundra biome, showing that (i) at point scale, the temporal variability of fluxes is controlled by the classical drivers, i.e. air temperature and solar irradiance respectively for ER and GPP, (ii) at site scale, the heterogeneity of fractional vegetation cover, soil moisture and vegetation type acted as additional source of variability for both CO(2) emissions and uptake. The assessment of the relative importance of such drivers in the multi-regression model contributes to a better understanding of the terrestrial carbon dioxide exchanges and of Critical Zone processes in the Arctic tundra. |
format |
Text |
author |
Magnani, Marta Baneschi, Ilaria Giamberini, Mariasilvia Raco, Brunella Provenzale, Antonello |
author_facet |
Magnani, Marta Baneschi, Ilaria Giamberini, Mariasilvia Raco, Brunella Provenzale, Antonello |
author_sort |
Magnani, Marta |
title |
Microscale drivers of summer CO(2) fluxes in the Svalbard High Arctic tundra |
title_short |
Microscale drivers of summer CO(2) fluxes in the Svalbard High Arctic tundra |
title_full |
Microscale drivers of summer CO(2) fluxes in the Svalbard High Arctic tundra |
title_fullStr |
Microscale drivers of summer CO(2) fluxes in the Svalbard High Arctic tundra |
title_full_unstemmed |
Microscale drivers of summer CO(2) fluxes in the Svalbard High Arctic tundra |
title_sort |
microscale drivers of summer co(2) fluxes in the svalbard high arctic tundra |
publisher |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8760244/ http://www.ncbi.nlm.nih.gov/pubmed/35031661 https://doi.org/10.1038/s41598-021-04728-0 |
long_lat |
ENVELOPE(11.898,11.898,78.933,78.933) |
geographic |
Arctic Bayelva Ny-Ålesund Svalbard |
geographic_facet |
Arctic Bayelva Ny-Ålesund Svalbard |
genre |
Arctic Climate change Ny Ålesund Ny-Ålesund Spitzbergen Svalbard Tundra |
genre_facet |
Arctic Climate change Ny Ålesund Ny-Ålesund Spitzbergen Svalbard Tundra |
op_source |
Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8760244/ http://www.ncbi.nlm.nih.gov/pubmed/35031661 http://dx.doi.org/10.1038/s41598-021-04728-0 |
op_rights |
© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-04728-0 |
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Scientific Reports |
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12 |
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1 |
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1766319286202138624 |