Warming, shading and a moth outbreak reduce tundra carbon sink strength dramatically by changing plant cover and soil microbial activity
Future increases in temperature and cloud cover will alter plant growth and decomposition of the large carbon pools stored in Arctic soils. A better understanding of interactions between above- and belowground processes and communities of plants and microorganisms is essential for predicting Arctic...
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ftpubmed:oai:pubmedcentral.nih.gov:5700064 2023-05-15T14:57:58+02:00 Warming, shading and a moth outbreak reduce tundra carbon sink strength dramatically by changing plant cover and soil microbial activity Dahl, Mathilde Borg Priemé, Anders Brejnrod, Asker Brusvang, Peter Lund, Magnus Nymand, Josephine Kramshøj, Magnus Ro-Poulsen, Helge Haugwitz, Merian Skouw 2017-11-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5700064/ http://www.ncbi.nlm.nih.gov/pubmed/29167456 https://doi.org/10.1038/s41598-017-16007-y en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5700064/ http://www.ncbi.nlm.nih.gov/pubmed/29167456 http://dx.doi.org/10.1038/s41598-017-16007-y © The Author(s) 2017 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2017 ftpubmed https://doi.org/10.1038/s41598-017-16007-y 2017-12-03T01:33:33Z Future increases in temperature and cloud cover will alter plant growth and decomposition of the large carbon pools stored in Arctic soils. A better understanding of interactions between above- and belowground processes and communities of plants and microorganisms is essential for predicting Arctic ecosystem responses to climate change. We measured ecosystem CO2 fluxes during the growing season for seven years in a dwarf-shrub tundra in West Greenland manipulated with warming and shading and experiencing a natural larvae outbreak. Vegetation composition, soil fungal community composition, microbial activity, and nutrient availability were analyzed after six years of treatment. Warming and shading altered the plant community, reduced plant CO2 uptake, and changed fungal community composition. Ecosystem carbon accumulation decreased during the growing season by 61% in shaded plots and 51% in warmed plots. Also, plant recovery was reduced in both manipulations following the larvae outbreak during the fifth treatment year. The reduced plant recovery in manipulated plots following the larvae outbreak suggests that climate change may increase tundra ecosystem sensitivity to disturbances. Also, plant community changes mediated via reduced light and reduced water availability due to increased temperature can strongly lower the carbon sink strength of tundra ecosystems. Text Arctic Climate change Greenland Tundra PubMed Central (PMC) Arctic Greenland Scientific Reports 7 1 |
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Article Dahl, Mathilde Borg Priemé, Anders Brejnrod, Asker Brusvang, Peter Lund, Magnus Nymand, Josephine Kramshøj, Magnus Ro-Poulsen, Helge Haugwitz, Merian Skouw Warming, shading and a moth outbreak reduce tundra carbon sink strength dramatically by changing plant cover and soil microbial activity |
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Article |
description |
Future increases in temperature and cloud cover will alter plant growth and decomposition of the large carbon pools stored in Arctic soils. A better understanding of interactions between above- and belowground processes and communities of plants and microorganisms is essential for predicting Arctic ecosystem responses to climate change. We measured ecosystem CO2 fluxes during the growing season for seven years in a dwarf-shrub tundra in West Greenland manipulated with warming and shading and experiencing a natural larvae outbreak. Vegetation composition, soil fungal community composition, microbial activity, and nutrient availability were analyzed after six years of treatment. Warming and shading altered the plant community, reduced plant CO2 uptake, and changed fungal community composition. Ecosystem carbon accumulation decreased during the growing season by 61% in shaded plots and 51% in warmed plots. Also, plant recovery was reduced in both manipulations following the larvae outbreak during the fifth treatment year. The reduced plant recovery in manipulated plots following the larvae outbreak suggests that climate change may increase tundra ecosystem sensitivity to disturbances. Also, plant community changes mediated via reduced light and reduced water availability due to increased temperature can strongly lower the carbon sink strength of tundra ecosystems. |
format |
Text |
author |
Dahl, Mathilde Borg Priemé, Anders Brejnrod, Asker Brusvang, Peter Lund, Magnus Nymand, Josephine Kramshøj, Magnus Ro-Poulsen, Helge Haugwitz, Merian Skouw |
author_facet |
Dahl, Mathilde Borg Priemé, Anders Brejnrod, Asker Brusvang, Peter Lund, Magnus Nymand, Josephine Kramshøj, Magnus Ro-Poulsen, Helge Haugwitz, Merian Skouw |
author_sort |
Dahl, Mathilde Borg |
title |
Warming, shading and a moth outbreak reduce tundra carbon sink strength dramatically by changing plant cover and soil microbial activity |
title_short |
Warming, shading and a moth outbreak reduce tundra carbon sink strength dramatically by changing plant cover and soil microbial activity |
title_full |
Warming, shading and a moth outbreak reduce tundra carbon sink strength dramatically by changing plant cover and soil microbial activity |
title_fullStr |
Warming, shading and a moth outbreak reduce tundra carbon sink strength dramatically by changing plant cover and soil microbial activity |
title_full_unstemmed |
Warming, shading and a moth outbreak reduce tundra carbon sink strength dramatically by changing plant cover and soil microbial activity |
title_sort |
warming, shading and a moth outbreak reduce tundra carbon sink strength dramatically by changing plant cover and soil microbial activity |
publisher |
Nature Publishing Group UK |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5700064/ http://www.ncbi.nlm.nih.gov/pubmed/29167456 https://doi.org/10.1038/s41598-017-16007-y |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Climate change Greenland Tundra |
genre_facet |
Arctic Climate change Greenland Tundra |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5700064/ http://www.ncbi.nlm.nih.gov/pubmed/29167456 http://dx.doi.org/10.1038/s41598-017-16007-y |
op_rights |
© The Author(s) 2017 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-017-16007-y |
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Scientific Reports |
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