Effects of ozone depletion and increased ultraviolet-B radiation on northern vegetation
The stratospheric ozone layer has been depleted at high and mid-latitudes as a consequence of man's pollution of the atmosphere, and this results in increasing ultraviolet-B radiation at ground level. We investigate the effects of further radiation increases on plants and ecosystems by irradiat...
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Norwegian Polar Institute
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ftjpolarres:oai:journals.openacademia.net:article/2248 2023-05-15T12:59:41+02:00 Effects of ozone depletion and increased ultraviolet-B radiation on northern vegetation Björn, Lars Olof Callaghan, Terry V. Gehrke, Carola Gwynn-Jones, Dylan Lee, John A. Johanson, Ulf Sonesson, Mats Buck, Nicholas D. 1999-01-12 application/pdf https://polarresearch.net/index.php/polar/article/view/2248 https://doi.org/10.3402/polar.v18i2.6592 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2248/5499 https://polarresearch.net/index.php/polar/article/view/2248 doi:10.3402/polar.v18i2.6592 Copyright (c) 2018 Polar Research Polar Research; Vol. 18 No. 2 (1999): Special issue: Proceedings of the International Symposium on Polar Aspects of Global Change; 331-337 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1999 ftjpolarres https://doi.org/10.3402/polar.v18i2.6592 2021-11-11T19:12:21Z The stratospheric ozone layer has been depleted at high and mid-latitudes as a consequence of man's pollution of the atmosphere, and this results in increasing ultraviolet-B radiation at ground level. We investigate the effects of further radiation increases on plants and ecosystems by irradiating natural sub-Arctic and Arctic vegetation with artificial UV-B radiation in field experiments extending over several years. Our experimental sites are located at Abisko, in northern Sweden (68°N), and Adventdalen, on the island of Spitsbergen (78°N). Additional UV-B induced interspecific differences in plant response in terms of reduced (or, in one case, increased) growth, changed morphology and changed pigment content. In some cases effects seem to be accumulated from one year to another. Plant litter decomposition is retarded. We are also studying how UV-B enhancement may affect the interaction between species. In some experiments we combine UV-B enhancement with changes in other factors: carbon dioxide concentration, water availability, and temperature. In some cases the effect of radiation enhancement is modified, or even reversed, by such changes. Over a four year period we did not find any significant radiation induced change in species composition, but based on the effects on individual plant species, such changes can be expected to take place over a longer time. Article in Journal/Newspaper Abisko Adventdalen Arctic Northern Sweden Polar Research Spitsbergen Polar Research (E-Journal) Arctic Abisko ENVELOPE(18.829,18.829,68.349,68.349) Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) Polar Research 18 2 331 337 |
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Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
The stratospheric ozone layer has been depleted at high and mid-latitudes as a consequence of man's pollution of the atmosphere, and this results in increasing ultraviolet-B radiation at ground level. We investigate the effects of further radiation increases on plants and ecosystems by irradiating natural sub-Arctic and Arctic vegetation with artificial UV-B radiation in field experiments extending over several years. Our experimental sites are located at Abisko, in northern Sweden (68°N), and Adventdalen, on the island of Spitsbergen (78°N). Additional UV-B induced interspecific differences in plant response in terms of reduced (or, in one case, increased) growth, changed morphology and changed pigment content. In some cases effects seem to be accumulated from one year to another. Plant litter decomposition is retarded. We are also studying how UV-B enhancement may affect the interaction between species. In some experiments we combine UV-B enhancement with changes in other factors: carbon dioxide concentration, water availability, and temperature. In some cases the effect of radiation enhancement is modified, or even reversed, by such changes. Over a four year period we did not find any significant radiation induced change in species composition, but based on the effects on individual plant species, such changes can be expected to take place over a longer time. |
format |
Article in Journal/Newspaper |
author |
Björn, Lars Olof Callaghan, Terry V. Gehrke, Carola Gwynn-Jones, Dylan Lee, John A. Johanson, Ulf Sonesson, Mats Buck, Nicholas D. |
spellingShingle |
Björn, Lars Olof Callaghan, Terry V. Gehrke, Carola Gwynn-Jones, Dylan Lee, John A. Johanson, Ulf Sonesson, Mats Buck, Nicholas D. Effects of ozone depletion and increased ultraviolet-B radiation on northern vegetation |
author_facet |
Björn, Lars Olof Callaghan, Terry V. Gehrke, Carola Gwynn-Jones, Dylan Lee, John A. Johanson, Ulf Sonesson, Mats Buck, Nicholas D. |
author_sort |
Björn, Lars Olof |
title |
Effects of ozone depletion and increased ultraviolet-B radiation on northern vegetation |
title_short |
Effects of ozone depletion and increased ultraviolet-B radiation on northern vegetation |
title_full |
Effects of ozone depletion and increased ultraviolet-B radiation on northern vegetation |
title_fullStr |
Effects of ozone depletion and increased ultraviolet-B radiation on northern vegetation |
title_full_unstemmed |
Effects of ozone depletion and increased ultraviolet-B radiation on northern vegetation |
title_sort |
effects of ozone depletion and increased ultraviolet-b radiation on northern vegetation |
publisher |
Norwegian Polar Institute |
publishDate |
1999 |
url |
https://polarresearch.net/index.php/polar/article/view/2248 https://doi.org/10.3402/polar.v18i2.6592 |
long_lat |
ENVELOPE(18.829,18.829,68.349,68.349) ENVELOPE(16.264,16.264,78.181,78.181) |
geographic |
Arctic Abisko Adventdalen |
geographic_facet |
Arctic Abisko Adventdalen |
genre |
Abisko Adventdalen Arctic Northern Sweden Polar Research Spitsbergen |
genre_facet |
Abisko Adventdalen Arctic Northern Sweden Polar Research Spitsbergen |
op_source |
Polar Research; Vol. 18 No. 2 (1999): Special issue: Proceedings of the International Symposium on Polar Aspects of Global Change; 331-337 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2248/5499 https://polarresearch.net/index.php/polar/article/view/2248 doi:10.3402/polar.v18i2.6592 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v18i2.6592 |
container_title |
Polar Research |
container_volume |
18 |
container_issue |
2 |
container_start_page |
331 |
op_container_end_page |
337 |
_version_ |
1766079542548496384 |