Spatial assessment of the vegetation evolution by comparing two series of releves (1975-2006) on a strandflat section in Svalbard
International audience The vegetation evolution is analysed on the forefield of two glaciers in Svalbard for a period of 31 years (1975-2006). In 1975, 85 stations were positioned along transects going from the coast line to the glacier fronts; botanical releves were made at each point. The adopted...
Main Authors: | , , |
---|---|
Other Authors: | , , , , , , , |
Format: | Other/Unknown Material |
Language: | English |
Published: |
HAL CCSD
2007
|
Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-00767274 |
id |
fttriple:oai:gotriple.eu:10670/1.2qgsf6 |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:10670/1.2qgsf6 2023-05-15T16:22:16+02:00 Spatial assessment of the vegetation evolution by comparing two series of releves (1975-2006) on a strandflat section in Svalbard Moreau, Myrtille Laffly, Dominique Brossard, Thierry Laboratoire de Géographie Physique et Environnementale (GEOLAB) Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Université Clermont Auvergne (UCA)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM) Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS) Géographie de l'environnement (GEODE) Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J) Théoriser et modéliser pour aménager (UMR 6049) (ThéMA) Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB) Cambridge, United Kingdom 2007-10-16 https://hal.archives-ouvertes.fr/hal-00767274 en eng HAL CCSD hal-00767274 10670/1.2qgsf6 https://hal.archives-ouvertes.fr/hal-00767274 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société 8th NySMAC Seminar 8th NySMAC Seminar, Oct 2007, Cambridge, United Kingdom. 24p geo envir Conference Output https://vocabularies.coar-repositories.org/resource_types/c_c94f/ 2007 fttriple 2023-01-22T16:46:04Z International audience The vegetation evolution is analysed on the forefield of two glaciers in Svalbard for a period of 31 years (1975-2006). In 1975, 85 stations were positioned along transects going from the coast line to the glacier fronts; botanical releves were made at each point. The adopted protocol allowed us to carry out a new observation session in 2006 under the same conditions. The collected information is encoded in the proper way to enable a comparison between the two series. Thus, it is possible to make a botanical assessment of species and taxa which have appeared or disappeared, and to see how the releves have evolved in reference to a typology established by coupling correspondence analysis and ascending hierarchical classification. The evolution of the releves is also measured by using vectors positioned in the multidimensional space of correspondence analysis. In this way, the transfers between 7 vegetation types during the period are displayed. These results are shown by the graphs obtained and the changes observed in cartography. On this basis, the evolution of the colonization process is calibrated and dated according to different reference stages, mainly since the end of the Little Ice Age. Moreover, some converging features tend to demonstrate that a drying process related to permafrost melting is affecting soils in this area. Other/Unknown Material glacier Ice permafrost Svalbard Unknown Svalbard |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir Moreau, Myrtille Laffly, Dominique Brossard, Thierry Spatial assessment of the vegetation evolution by comparing two series of releves (1975-2006) on a strandflat section in Svalbard |
topic_facet |
geo envir |
description |
International audience The vegetation evolution is analysed on the forefield of two glaciers in Svalbard for a period of 31 years (1975-2006). In 1975, 85 stations were positioned along transects going from the coast line to the glacier fronts; botanical releves were made at each point. The adopted protocol allowed us to carry out a new observation session in 2006 under the same conditions. The collected information is encoded in the proper way to enable a comparison between the two series. Thus, it is possible to make a botanical assessment of species and taxa which have appeared or disappeared, and to see how the releves have evolved in reference to a typology established by coupling correspondence analysis and ascending hierarchical classification. The evolution of the releves is also measured by using vectors positioned in the multidimensional space of correspondence analysis. In this way, the transfers between 7 vegetation types during the period are displayed. These results are shown by the graphs obtained and the changes observed in cartography. On this basis, the evolution of the colonization process is calibrated and dated according to different reference stages, mainly since the end of the Little Ice Age. Moreover, some converging features tend to demonstrate that a drying process related to permafrost melting is affecting soils in this area. |
author2 |
Laboratoire de Géographie Physique et Environnementale (GEOLAB) Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Université Clermont Auvergne (UCA)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM) Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS) Géographie de l'environnement (GEODE) Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J) Théoriser et modéliser pour aménager (UMR 6049) (ThéMA) Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB) |
format |
Other/Unknown Material |
author |
Moreau, Myrtille Laffly, Dominique Brossard, Thierry |
author_facet |
Moreau, Myrtille Laffly, Dominique Brossard, Thierry |
author_sort |
Moreau, Myrtille |
title |
Spatial assessment of the vegetation evolution by comparing two series of releves (1975-2006) on a strandflat section in Svalbard |
title_short |
Spatial assessment of the vegetation evolution by comparing two series of releves (1975-2006) on a strandflat section in Svalbard |
title_full |
Spatial assessment of the vegetation evolution by comparing two series of releves (1975-2006) on a strandflat section in Svalbard |
title_fullStr |
Spatial assessment of the vegetation evolution by comparing two series of releves (1975-2006) on a strandflat section in Svalbard |
title_full_unstemmed |
Spatial assessment of the vegetation evolution by comparing two series of releves (1975-2006) on a strandflat section in Svalbard |
title_sort |
spatial assessment of the vegetation evolution by comparing two series of releves (1975-2006) on a strandflat section in svalbard |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.archives-ouvertes.fr/hal-00767274 |
op_coverage |
Cambridge, United Kingdom |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
glacier Ice permafrost Svalbard |
genre_facet |
glacier Ice permafrost Svalbard |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société 8th NySMAC Seminar 8th NySMAC Seminar, Oct 2007, Cambridge, United Kingdom. 24p |
op_relation |
hal-00767274 10670/1.2qgsf6 https://hal.archives-ouvertes.fr/hal-00767274 |
op_rights |
undefined |
_version_ |
1766010225949671424 |