Permafrost warming and vegetation changes in continental Antarctica
Continental Antarctica represents the last pristine environment on Earth and is one of the most suitable contexts to analyze the relations between climate, active layer and vegetation. In 2000 we started long-term monitoring of the climate, permafrost, active layer and vegetation in Victoria Land, c...
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ftuninsubriairis:oai:irinsubria.uninsubria.it:11383/2005522 2024-04-14T08:00:11+00:00 Permafrost warming and vegetation changes in continental Antarctica GUGLIELMIN, MAURO CANNONE, NICOLETTA DALLE FRATTE M. DALLE FRATTE, MICHELE Guglielmin, Mauro DALLE FRATTE, M. Cannone, Nicoletta DALLE FRATTE, Michele 2014 ELETTRONICO http://hdl.handle.net/11383/2005522 https://doi.org/10.1088/1748-9326/9/4/045001 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000338781000015 volume:9 issue:4 firstpage:1 lastpage:14 numberofpages:14 journal:ENVIRONMENTAL RESEARCH LETTERS http://hdl.handle.net/11383/2005522 doi:10.1088/1748-9326/9/4/045001 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84899501299 active layer Antarctica climate change ground water content incoming radiation mosse permafrost snow vegetation info:eu-repo/semantics/article 2014 ftuninsubriairis https://doi.org/10.1088/1748-9326/9/4/045001 2024-03-21T19:08:31Z Continental Antarctica represents the last pristine environment on Earth and is one of the most suitable contexts to analyze the relations between climate, active layer and vegetation. In 2000 we started long-term monitoring of the climate, permafrost, active layer and vegetation in Victoria Land, continental Antarctica. Our data confirm the stability of mean annual and summer air temperature, of snow cover, and an increasing trend of summer incoming short wave radiation. The active layer thickness is increasing at a rate of 0.3 cm y-1. The active layer is characterized by large annual and spatial differences. The latter are due to scarce vegetation, a patchy and very thin organic layer and large spatial differences in snow accumulation. The active layer thickening, probably due to the increase of incoming short wave radiation, produced a general decrease of the ground water content due to the better drainage of the ground. The resultant drying may be responsible for the decline of mosses in xeric sites, while it provided better conditions for mosses in hydric sites, following the species-specific water requirements. An increase of lichen vegetation was observed where the climate drying occurred. This evidence emphasizes that the Antarctic continent is experiencing changes that are in total contrast to the changes reported from maritime Antarctica. Article in Journal/Newspaper Active layer thickness Antarc* Antarctic Antarctica permafrost Victoria Land IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) Antarctic The Antarctic Victoria Land Environmental Research Letters 9 4 045001 |
institution |
Open Polar |
collection |
IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) |
op_collection_id |
ftuninsubriairis |
language |
English |
topic |
active layer Antarctica climate change ground water content incoming radiation mosse permafrost snow vegetation |
spellingShingle |
active layer Antarctica climate change ground water content incoming radiation mosse permafrost snow vegetation GUGLIELMIN, MAURO CANNONE, NICOLETTA DALLE FRATTE M. DALLE FRATTE, MICHELE Permafrost warming and vegetation changes in continental Antarctica |
topic_facet |
active layer Antarctica climate change ground water content incoming radiation mosse permafrost snow vegetation |
description |
Continental Antarctica represents the last pristine environment on Earth and is one of the most suitable contexts to analyze the relations between climate, active layer and vegetation. In 2000 we started long-term monitoring of the climate, permafrost, active layer and vegetation in Victoria Land, continental Antarctica. Our data confirm the stability of mean annual and summer air temperature, of snow cover, and an increasing trend of summer incoming short wave radiation. The active layer thickness is increasing at a rate of 0.3 cm y-1. The active layer is characterized by large annual and spatial differences. The latter are due to scarce vegetation, a patchy and very thin organic layer and large spatial differences in snow accumulation. The active layer thickening, probably due to the increase of incoming short wave radiation, produced a general decrease of the ground water content due to the better drainage of the ground. The resultant drying may be responsible for the decline of mosses in xeric sites, while it provided better conditions for mosses in hydric sites, following the species-specific water requirements. An increase of lichen vegetation was observed where the climate drying occurred. This evidence emphasizes that the Antarctic continent is experiencing changes that are in total contrast to the changes reported from maritime Antarctica. |
author2 |
Guglielmin, Mauro DALLE FRATTE, M. Cannone, Nicoletta DALLE FRATTE, Michele |
format |
Article in Journal/Newspaper |
author |
GUGLIELMIN, MAURO CANNONE, NICOLETTA DALLE FRATTE M. DALLE FRATTE, MICHELE |
author_facet |
GUGLIELMIN, MAURO CANNONE, NICOLETTA DALLE FRATTE M. DALLE FRATTE, MICHELE |
author_sort |
GUGLIELMIN, MAURO |
title |
Permafrost warming and vegetation changes in continental Antarctica |
title_short |
Permafrost warming and vegetation changes in continental Antarctica |
title_full |
Permafrost warming and vegetation changes in continental Antarctica |
title_fullStr |
Permafrost warming and vegetation changes in continental Antarctica |
title_full_unstemmed |
Permafrost warming and vegetation changes in continental Antarctica |
title_sort |
permafrost warming and vegetation changes in continental antarctica |
publishDate |
2014 |
url |
http://hdl.handle.net/11383/2005522 https://doi.org/10.1088/1748-9326/9/4/045001 |
geographic |
Antarctic The Antarctic Victoria Land |
geographic_facet |
Antarctic The Antarctic Victoria Land |
genre |
Active layer thickness Antarc* Antarctic Antarctica permafrost Victoria Land |
genre_facet |
Active layer thickness Antarc* Antarctic Antarctica permafrost Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000338781000015 volume:9 issue:4 firstpage:1 lastpage:14 numberofpages:14 journal:ENVIRONMENTAL RESEARCH LETTERS http://hdl.handle.net/11383/2005522 doi:10.1088/1748-9326/9/4/045001 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84899501299 |
op_doi |
https://doi.org/10.1088/1748-9326/9/4/045001 |
container_title |
Environmental Research Letters |
container_volume |
9 |
container_issue |
4 |
container_start_page |
045001 |
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1796316407369039872 |