Alpine garden plants from six continents show high vulnerability to ice encasement
Icy surfaces impose challenges for northern societies, wildlife and agriculture. However, there have been relatively few studies of the impacts of anoxic ground ice on non-agricultural plants. During the winter of 2009–2010, an extreme winter warming event led to thick ground-ice layer development i...
Published in: | Norsk Geografisk Tidsskrift - Norwegian Journal of Geography |
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Online Access: | http://hdl.handle.net/11250/2465799 https://doi.org/10.1080/00291951.2017.1391876 |
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ftninstnf:oai:brage.nina.no:11250/2465799 2023-05-15T18:28:29+02:00 Alpine garden plants from six continents show high vulnerability to ice encasement Bjerke, Jarle W. Elvebakk, Arve Tømmervik, Hans Tromsø, Troms, Norway 2017 application/pdf http://hdl.handle.net/11250/2465799 https://doi.org/10.1080/00291951.2017.1391876 eng eng Norges forskningsråd: 225006 Norges forskningsråd: 216434 Framsenteret: 362206 urn:issn:0029-1951 http://hdl.handle.net/11250/2465799 https://doi.org/10.1080/00291951.2017.1391876 cristin:1509538 Norsk Geografisk Tidsskrift VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Journal article Peer reviewed 2017 ftninstnf https://doi.org/10.1080/00291951.2017.1391876 2021-12-23T07:17:05Z Icy surfaces impose challenges for northern societies, wildlife and agriculture. However, there have been relatively few studies of the impacts of anoxic ground ice on non-agricultural plants. During the winter of 2009–2010, an extreme winter warming event led to thick ground-ice layer development in the world’s northernmost botanical garden in Tromsø, in subarctic Norway, due to much rain on warm days interspersed with cold dry days. After ice melt in late spring, the authors assessed plant mortality and tested whether certain growth forms, geographical origins, or terrain features were more vulnerable to stress. They found that mortality was negatively correlated with terrain slope, that cryptophytes were most vulnerable, and that good soil drainage improved all plants’ survival. Vegetation greenness (measured by the Normalized Difference Vegetation Index, NDVI) reached an unprecedented minimum in the summer of 2010 and remained low for two more years. The results suggest that more investigations of the impacts of ground ice are needed to understand better how alpine ecosystems might change with increasing climate change. In conclusion, the study revealed that botanical garden studies may be a valuable supplement to field studies, as plants of different origins could be studied under similar climatic conditions. anoxia, extreme event, NDVI, plant mortality, winter warming acceptedVersion Article in Journal/Newspaper Subarctic Tromsø Troms Norwegian Institute for Nature Research: Brage NINA Norway Tromsø Norsk Geografisk Tidsskrift - Norwegian Journal of Geography 72 1 57 64 |
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Open Polar |
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Norwegian Institute for Nature Research: Brage NINA |
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ftninstnf |
language |
English |
topic |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
spellingShingle |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Bjerke, Jarle W. Elvebakk, Arve Tømmervik, Hans Alpine garden plants from six continents show high vulnerability to ice encasement |
topic_facet |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
description |
Icy surfaces impose challenges for northern societies, wildlife and agriculture. However, there have been relatively few studies of the impacts of anoxic ground ice on non-agricultural plants. During the winter of 2009–2010, an extreme winter warming event led to thick ground-ice layer development in the world’s northernmost botanical garden in Tromsø, in subarctic Norway, due to much rain on warm days interspersed with cold dry days. After ice melt in late spring, the authors assessed plant mortality and tested whether certain growth forms, geographical origins, or terrain features were more vulnerable to stress. They found that mortality was negatively correlated with terrain slope, that cryptophytes were most vulnerable, and that good soil drainage improved all plants’ survival. Vegetation greenness (measured by the Normalized Difference Vegetation Index, NDVI) reached an unprecedented minimum in the summer of 2010 and remained low for two more years. The results suggest that more investigations of the impacts of ground ice are needed to understand better how alpine ecosystems might change with increasing climate change. In conclusion, the study revealed that botanical garden studies may be a valuable supplement to field studies, as plants of different origins could be studied under similar climatic conditions. anoxia, extreme event, NDVI, plant mortality, winter warming acceptedVersion |
format |
Article in Journal/Newspaper |
author |
Bjerke, Jarle W. Elvebakk, Arve Tømmervik, Hans |
author_facet |
Bjerke, Jarle W. Elvebakk, Arve Tømmervik, Hans |
author_sort |
Bjerke, Jarle W. |
title |
Alpine garden plants from six continents show high vulnerability to ice encasement |
title_short |
Alpine garden plants from six continents show high vulnerability to ice encasement |
title_full |
Alpine garden plants from six continents show high vulnerability to ice encasement |
title_fullStr |
Alpine garden plants from six continents show high vulnerability to ice encasement |
title_full_unstemmed |
Alpine garden plants from six continents show high vulnerability to ice encasement |
title_sort |
alpine garden plants from six continents show high vulnerability to ice encasement |
publishDate |
2017 |
url |
http://hdl.handle.net/11250/2465799 https://doi.org/10.1080/00291951.2017.1391876 |
op_coverage |
Tromsø, Troms, Norway |
geographic |
Norway Tromsø |
geographic_facet |
Norway Tromsø |
genre |
Subarctic Tromsø Troms |
genre_facet |
Subarctic Tromsø Troms |
op_source |
Norsk Geografisk Tidsskrift |
op_relation |
Norges forskningsråd: 225006 Norges forskningsråd: 216434 Framsenteret: 362206 urn:issn:0029-1951 http://hdl.handle.net/11250/2465799 https://doi.org/10.1080/00291951.2017.1391876 cristin:1509538 |
op_doi |
https://doi.org/10.1080/00291951.2017.1391876 |
container_title |
Norsk Geografisk Tidsskrift - Norwegian Journal of Geography |
container_volume |
72 |
container_issue |
1 |
container_start_page |
57 |
op_container_end_page |
64 |
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1766210973757079552 |