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...
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ftunifranchecom:oai:HAL:hal-00767274v1 2024-09-15T18:07:58+00:00 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)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM) Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA) Géographie de l'environnement (GEODE) Université Toulouse - Jean Jaurès (UT2J) Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS) Théoriser et modéliser pour aménager (UMR 6049) (ThéMA) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Cambridge, United Kingdom 2007-10-16 https://hal.science/hal-00767274 en eng HAL CCSD hal-00767274 https://hal.science/hal-00767274 8th NySMAC Seminar https://hal.science/hal-00767274 8th NySMAC Seminar, Oct 2007, Cambridge, United Kingdom. 24p [SHS.GEO]Humanities and Social Sciences/Geography info:eu-repo/semantics/conferenceObject Conference papers 2007 ftunifranchecom 2024-07-08T23:39:52Z 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. Conference Object glacier Ice permafrost Svalbard Université de Franche-Comté (UFC): HAL |
institution |
Open Polar |
collection |
Université de Franche-Comté (UFC): HAL |
op_collection_id |
ftunifranchecom |
language |
English |
topic |
[SHS.GEO]Humanities and Social Sciences/Geography |
spellingShingle |
[SHS.GEO]Humanities and Social Sciences/Geography 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 |
[SHS.GEO]Humanities and Social Sciences/Geography |
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)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM) Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA) Géographie de l'environnement (GEODE) Université Toulouse - Jean Jaurès (UT2J) Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS) Théoriser et modéliser pour aménager (UMR 6049) (ThéMA) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) |
format |
Conference Object |
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.science/hal-00767274 |
op_coverage |
Cambridge, United Kingdom |
genre |
glacier Ice permafrost Svalbard |
genre_facet |
glacier Ice permafrost Svalbard |
op_source |
8th NySMAC Seminar https://hal.science/hal-00767274 8th NySMAC Seminar, Oct 2007, Cambridge, United Kingdom. 24p |
op_relation |
hal-00767274 https://hal.science/hal-00767274 |
_version_ |
1810445320125939712 |