Un forestier pyrénéen en Laponie. Repérage biogéographique
What pattern do the great natural vegetation belts take when faced with the roughness of the wide spaces of Fennoscandia? In order to understand the evolution of landscapes under actual attenuated climatic forcing as well as the subsequent adaptation of the northern sylvatic and asylvatic systems, t...
Published in: | Dynamiques environnementales |
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Format: | Article in Journal/Newspaper |
Language: | French |
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Presses universitaires de Bordeaux
2019
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Online Access: | http://journals.openedition.org/dynenviron/570 |
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fttriple:oai:gotriple.eu:oai:revues.org:dynenviron/570 2023-05-15T15:17:28+02:00 Un forestier pyrénéen en Laponie. Repérage biogéographique A Pyrenean forest in Lapland. Biogeographical identification Cantegrel, Renaud 2019-11-26 http://journals.openedition.org/dynenviron/570 fr fre Presses universitaires de Bordeaux Dynamiques environnementales urn:doi:10.4000/dynenviron.570 http://journals.openedition.org/dynenviron/570 lic_creative-commons forêt boréale taïga timberline toundra zonation bioclimatique réchauffement climatique boreal forest snow-forest tundra bioclimatic zonation global warning geo archeo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2019 fttriple https://doi.org/10.4000/dynenviron.570 2023-01-22T19:02:57Z What pattern do the great natural vegetation belts take when faced with the roughness of the wide spaces of Fennoscandia? In order to understand the evolution of landscapes under actual attenuated climatic forcing as well as the subsequent adaptation of the northern sylvatic and asylvatic systems, the author goes on a long trip through the boreal forest up to the high latitudes tundra. The ancient colonization of the Scandian Mountains by Picea excelsa, omnipresent and certified as early as the end of the late ice-age on some emerging shelters above the Scandinavian inlandsis, comes along with a high ecogenetic diversity of the conifer, especially the taiga of columnar Spruce which forms the most characteristic stand. Despite the hardiness of Picea excelsa, Pinus sylvestris is the one which really makes up, beyond the 70th parallel, the most northern evergreen forests. Upon these windy plateaus, the fickleness of the snow cover during long boreal winters could explain pro parte the pre-eminence of Scots Pine. Then the monospecific bush of Betula tortuosa borders, at residual arctic tundra limits, the shrubby vegetation of the end of the world. Below, the Mountain birch, also part of the polymorphic species Betula pubescens, forms wide hardwood belts as much in the subalpine level of Scandian Mountains as in the northern taiga which covers the Lapland Mounts. In conclusion, the zonation of northern forests in discussed, with special emphasis on the chief part played by the various taxa of Birch in the organization of boreal forests and the fluctuating forestlines in the frozen North of Western Europe. Quel agencement adoptent les grandes formations végétales naturelles confrontées à l’âpreté des immenses espaces de la Fennoscandie ? Comprendre aussi bien l’évolution des paysages sous forçage climatique en voie d’atténuation que l’adaptation subséquente des systèmes sylvatiques et asylvatiques nordiques, conduit l’auteur à un long cheminement à travers la forêt boréale jusqu’à la toundra des latitudes extrêmes. ... Article in Journal/Newspaper Arctic Fennoscandia Inlandsis Laponie taiga toundra Tundra Lapland Unknown Arctic Dynamiques environnementales 39-40 294 328 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
French |
topic |
forêt boréale taïga timberline toundra zonation bioclimatique réchauffement climatique boreal forest snow-forest tundra bioclimatic zonation global warning geo archeo |
spellingShingle |
forêt boréale taïga timberline toundra zonation bioclimatique réchauffement climatique boreal forest snow-forest tundra bioclimatic zonation global warning geo archeo Cantegrel, Renaud Un forestier pyrénéen en Laponie. Repérage biogéographique |
topic_facet |
forêt boréale taïga timberline toundra zonation bioclimatique réchauffement climatique boreal forest snow-forest tundra bioclimatic zonation global warning geo archeo |
description |
What pattern do the great natural vegetation belts take when faced with the roughness of the wide spaces of Fennoscandia? In order to understand the evolution of landscapes under actual attenuated climatic forcing as well as the subsequent adaptation of the northern sylvatic and asylvatic systems, the author goes on a long trip through the boreal forest up to the high latitudes tundra. The ancient colonization of the Scandian Mountains by Picea excelsa, omnipresent and certified as early as the end of the late ice-age on some emerging shelters above the Scandinavian inlandsis, comes along with a high ecogenetic diversity of the conifer, especially the taiga of columnar Spruce which forms the most characteristic stand. Despite the hardiness of Picea excelsa, Pinus sylvestris is the one which really makes up, beyond the 70th parallel, the most northern evergreen forests. Upon these windy plateaus, the fickleness of the snow cover during long boreal winters could explain pro parte the pre-eminence of Scots Pine. Then the monospecific bush of Betula tortuosa borders, at residual arctic tundra limits, the shrubby vegetation of the end of the world. Below, the Mountain birch, also part of the polymorphic species Betula pubescens, forms wide hardwood belts as much in the subalpine level of Scandian Mountains as in the northern taiga which covers the Lapland Mounts. In conclusion, the zonation of northern forests in discussed, with special emphasis on the chief part played by the various taxa of Birch in the organization of boreal forests and the fluctuating forestlines in the frozen North of Western Europe. Quel agencement adoptent les grandes formations végétales naturelles confrontées à l’âpreté des immenses espaces de la Fennoscandie ? Comprendre aussi bien l’évolution des paysages sous forçage climatique en voie d’atténuation que l’adaptation subséquente des systèmes sylvatiques et asylvatiques nordiques, conduit l’auteur à un long cheminement à travers la forêt boréale jusqu’à la toundra des latitudes extrêmes. ... |
format |
Article in Journal/Newspaper |
author |
Cantegrel, Renaud |
author_facet |
Cantegrel, Renaud |
author_sort |
Cantegrel, Renaud |
title |
Un forestier pyrénéen en Laponie. Repérage biogéographique |
title_short |
Un forestier pyrénéen en Laponie. Repérage biogéographique |
title_full |
Un forestier pyrénéen en Laponie. Repérage biogéographique |
title_fullStr |
Un forestier pyrénéen en Laponie. Repérage biogéographique |
title_full_unstemmed |
Un forestier pyrénéen en Laponie. Repérage biogéographique |
title_sort |
un forestier pyrénéen en laponie. repérage biogéographique |
publisher |
Presses universitaires de Bordeaux |
publishDate |
2019 |
url |
http://journals.openedition.org/dynenviron/570 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Fennoscandia Inlandsis Laponie taiga toundra Tundra Lapland |
genre_facet |
Arctic Fennoscandia Inlandsis Laponie taiga toundra Tundra Lapland |
op_relation |
urn:doi:10.4000/dynenviron.570 http://journals.openedition.org/dynenviron/570 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.4000/dynenviron.570 |
container_title |
Dynamiques environnementales |
container_issue |
39-40 |
container_start_page |
294 |
op_container_end_page |
328 |
_version_ |
1766347716074405888 |