Temperature controls organic carbon sequestration in a subarctic lake
Widespread ecological reorganizations and increases in organic carbon (OC) in lakes across the Northern Hemisphere have raised concerns about the impact of the ongoing climate warming on aquatic ecosystems and carbon cycling. We employed diverse biogeochemical techniques on a highresolution sediment...
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ftjyvaeskylaenun:oai:jyx.jyu.fi:123456789/51615 2024-02-04T10:03:14+01:00 Temperature controls organic carbon sequestration in a subarctic lake Rantala, Marttiina V. Luoto, Tomi Nevalainen, Liisa 2016 34780 application/pdf http://urn.fi/URN:NBN:fi:jyu-201610114328 eng eng Nature Publishing Group Scientific Reports 2045-2322 0 6 10.1038/srep34780 Rantala, M. V., Luoto, T., & Nevalainen, L. (2016). Temperature controls organic carbon sequestration in a subarctic lake. Scientific Reports , 6 , 34780. https://doi.org/10.1038/srep34780 CONVID_26263160 TUTKAID_71438 URN:NBN:fi:jyu-201610114328 http://urn.fi/URN:NBN:fi:jyu-201610114328 © the Authors, 2016. This is an open access article published by Nature and distributed under the terms of a Creative Commons Attribution 4.0 International License. openAccess environmental impact freshwater ecology hiilen kierto limnologia article http://purl.org/eprint/type/JournalArticle http://purl.org/coar/resource_type/c_2df8fbb1 publishedVersion A1 2016 ftjyvaeskylaenun 2024-01-11T00:02:39Z Widespread ecological reorganizations and increases in organic carbon (OC) in lakes across the Northern Hemisphere have raised concerns about the impact of the ongoing climate warming on aquatic ecosystems and carbon cycling. We employed diverse biogeochemical techniques on a highresolution sediment record from a subarctic lake in northern Finland (70°N) to examine the direction, magnitude and mechanism of change in aquatic carbon pools prior to and under the anthropogenic warming. Coupled variation in the elemental and isotopic composition of the sediment and a proxybased summer air temperature reconstruction tracked changes in aquatic production, depicting a decline during a cool climate interval between ~1700–1900 C.E. and a subsequent increase over the 20th century. OC accumulation rates displayed similar coeval variation with temperature, mirroring both changes in aquatic production and terrestrial carbon export. Increase in sediment organic content over the 20th century together with high inferred aquatic UV exposure imply that the 20th century increase in OC accumulation is primarily connected to elevated lake production rather than terrestrial inputs. The changes in the supply of autochthonous energy sources were further reflected higher up the benthic food web, as evidenced by biotic stable isotopic fingerprints. peerReviewed Article in Journal/Newspaper Northern Finland Subarctic JYX - Jyväskylä University Digital Archive Scientific Reports 6 1 |
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JYX - Jyväskylä University Digital Archive |
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language |
English |
topic |
environmental impact freshwater ecology hiilen kierto limnologia |
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environmental impact freshwater ecology hiilen kierto limnologia Rantala, Marttiina V. Luoto, Tomi Nevalainen, Liisa Temperature controls organic carbon sequestration in a subarctic lake |
topic_facet |
environmental impact freshwater ecology hiilen kierto limnologia |
description |
Widespread ecological reorganizations and increases in organic carbon (OC) in lakes across the Northern Hemisphere have raised concerns about the impact of the ongoing climate warming on aquatic ecosystems and carbon cycling. We employed diverse biogeochemical techniques on a highresolution sediment record from a subarctic lake in northern Finland (70°N) to examine the direction, magnitude and mechanism of change in aquatic carbon pools prior to and under the anthropogenic warming. Coupled variation in the elemental and isotopic composition of the sediment and a proxybased summer air temperature reconstruction tracked changes in aquatic production, depicting a decline during a cool climate interval between ~1700–1900 C.E. and a subsequent increase over the 20th century. OC accumulation rates displayed similar coeval variation with temperature, mirroring both changes in aquatic production and terrestrial carbon export. Increase in sediment organic content over the 20th century together with high inferred aquatic UV exposure imply that the 20th century increase in OC accumulation is primarily connected to elevated lake production rather than terrestrial inputs. The changes in the supply of autochthonous energy sources were further reflected higher up the benthic food web, as evidenced by biotic stable isotopic fingerprints. peerReviewed |
format |
Article in Journal/Newspaper |
author |
Rantala, Marttiina V. Luoto, Tomi Nevalainen, Liisa |
author_facet |
Rantala, Marttiina V. Luoto, Tomi Nevalainen, Liisa |
author_sort |
Rantala, Marttiina V. |
title |
Temperature controls organic carbon sequestration in a subarctic lake |
title_short |
Temperature controls organic carbon sequestration in a subarctic lake |
title_full |
Temperature controls organic carbon sequestration in a subarctic lake |
title_fullStr |
Temperature controls organic carbon sequestration in a subarctic lake |
title_full_unstemmed |
Temperature controls organic carbon sequestration in a subarctic lake |
title_sort |
temperature controls organic carbon sequestration in a subarctic lake |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://urn.fi/URN:NBN:fi:jyu-201610114328 |
genre |
Northern Finland Subarctic |
genre_facet |
Northern Finland Subarctic |
op_relation |
Scientific Reports 2045-2322 0 6 10.1038/srep34780 Rantala, M. V., Luoto, T., & Nevalainen, L. (2016). Temperature controls organic carbon sequestration in a subarctic lake. Scientific Reports , 6 , 34780. https://doi.org/10.1038/srep34780 CONVID_26263160 TUTKAID_71438 URN:NBN:fi:jyu-201610114328 http://urn.fi/URN:NBN:fi:jyu-201610114328 |
op_rights |
© the Authors, 2016. This is an open access article published by Nature and distributed under the terms of a Creative Commons Attribution 4.0 International License. openAccess |
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Scientific Reports |
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6 |
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1789970502124568576 |