A 7,000 years trajectory of socio-ecosystems in the montane belt of the northern French Alps

IntroductionThis study, conducted on the Plateau des Glières, in the northern French Alps, investigates the evolution of vegetation composition over the past 7000 years. This site, within a montane ecosystem, offers a new opportunity to understand the human and landscape interactions under the influ...

Full description

Saved in:
Bibliographic Details
Main Authors: Andréa Julien, Erwan Messager, Elise Doyen, David Etienne, Laurent Marquer, Charline Giguet-Covex
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Environmental Archaeology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fearc.2024.1474357/full
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1841540100563927040
author Andréa Julien
Andréa Julien
Erwan Messager
Elise Doyen
David Etienne
Laurent Marquer
Charline Giguet-Covex
author_facet Andréa Julien
Andréa Julien
Erwan Messager
Elise Doyen
David Etienne
Laurent Marquer
Charline Giguet-Covex
author_sort Andréa Julien
collection DOAJ
description IntroductionThis study, conducted on the Plateau des Glières, in the northern French Alps, investigates the evolution of vegetation composition over the past 7000 years. This site, within a montane ecosystem, offers a new opportunity to understand the human and landscape interactions under the influence of climate. To study these interactions as a whole and by integrating their complexity, we used two conceptual frameworks: the agroecosystem and the trajectory.MethodsThe analyses conducted are based on a detailed analysis of pollen, NPP, macro-charcoal, and geochemical data from peat cores.ResultsThe vegetation history of the Plateau des Glières is dominated by forest, due to its location within the montane belt (1,435 m). However, the vegetation composition trajectory of the Glières reveals three regimes: two are characterized by an evolutionary trend of the system, and between them, the a third regime is characterized by a “dynamic steady state” of the system. The first regime, corresponding to the Neolithic period, is initially characterized by a closed forested environment with a progressive trend toward a more open landscape due to the first agro-pastoral activities. The second regime is recorded from the very end of the Neolithic until the High Roman Empire. It corresponds to a relatively stationary system, characterized by the progressive development of pastoral activities leading to low impacts on the landscape. This long period (4300 to 1800 cal. BP) is characterized by the sustainability of the agroecosystem that developed. After this long pseudo-stable phase, a tipping point in the vegetation composition trajectory is highlighted. The third regime, spanning from the Migration Period to the present day, is the result of the intensification and diversification of agro-pastoral activities (pastoralism, cereal crops, and fruit trees). The landscape that we can see today in the Plateau des Glières is the legacy of this trajectory characterizing the interactions between ecosystems and human societies, i.e., the socio-ecosystem.DiscussionWhile the agroecosystem trajectory reconstructed on the Plateau des Glières is rather consistent with the altitudinal model of anthropization previously proposed for this region, the vegetation response to the activities is unusual because it shows a long phase of ecosystem stability despite the relatively high human pressure.
format Article
id doaj-art-34ab4f1be2c8470a81feb89f397fbae8
institution Kabale University
issn 2813-432X
language English
publishDate 2025-01-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Environmental Archaeology
spelling doaj-art-34ab4f1be2c8470a81feb89f397fbae82025-01-14T06:10:32ZengFrontiers Media S.A.Frontiers in Environmental Archaeology2813-432X2025-01-01310.3389/fearc.2024.14743571474357A 7,000 years trajectory of socio-ecosystems in the montane belt of the northern French AlpsAndréa Julien0Andréa Julien1Erwan Messager2Elise Doyen3David Etienne4Laurent Marquer5Charline Giguet-Covex6EDYTEM, UMR 5204 CNRS, University of Savoie Mont-Blanc, Le Bourget-du-Lac, FranceDepartment of Botany, University of Innsbruck, Innsbruck, AustriaEDYTEM, UMR 5204 CNRS, University of Savoie Mont-Blanc, Le Bourget-du-Lac, FrancePaleobotalab, Parves et Nattages, FranceUMR INRAE 042-CARRTEL, University of Savoie Mont-Blanc, Thonon-les-Bains, FranceDepartment of Botany, University of Innsbruck, Innsbruck, AustriaEDYTEM, UMR 5204 CNRS, University of Savoie Mont-Blanc, Le Bourget-du-Lac, FranceIntroductionThis study, conducted on the Plateau des Glières, in the northern French Alps, investigates the evolution of vegetation composition over the past 7000 years. This site, within a montane ecosystem, offers a new opportunity to understand the human and landscape interactions under the influence of climate. To study these interactions as a whole and by integrating their complexity, we used two conceptual frameworks: the agroecosystem and the trajectory.MethodsThe analyses conducted are based on a detailed analysis of pollen, NPP, macro-charcoal, and geochemical data from peat cores.ResultsThe vegetation history of the Plateau des Glières is dominated by forest, due to its location within the montane belt (1,435 m). However, the vegetation composition trajectory of the Glières reveals three regimes: two are characterized by an evolutionary trend of the system, and between them, the a third regime is characterized by a “dynamic steady state” of the system. The first regime, corresponding to the Neolithic period, is initially characterized by a closed forested environment with a progressive trend toward a more open landscape due to the first agro-pastoral activities. The second regime is recorded from the very end of the Neolithic until the High Roman Empire. It corresponds to a relatively stationary system, characterized by the progressive development of pastoral activities leading to low impacts on the landscape. This long period (4300 to 1800 cal. BP) is characterized by the sustainability of the agroecosystem that developed. After this long pseudo-stable phase, a tipping point in the vegetation composition trajectory is highlighted. The third regime, spanning from the Migration Period to the present day, is the result of the intensification and diversification of agro-pastoral activities (pastoralism, cereal crops, and fruit trees). The landscape that we can see today in the Plateau des Glières is the legacy of this trajectory characterizing the interactions between ecosystems and human societies, i.e., the socio-ecosystem.DiscussionWhile the agroecosystem trajectory reconstructed on the Plateau des Glières is rather consistent with the altitudinal model of anthropization previously proposed for this region, the vegetation response to the activities is unusual because it shows a long phase of ecosystem stability despite the relatively high human pressure.https://www.frontiersin.org/articles/10.3389/fearc.2024.1474357/fullvegetation historyvegetation trajectorieshuman activityagro-pastoralismAlpspollen
spellingShingle Andréa Julien
Andréa Julien
Erwan Messager
Elise Doyen
David Etienne
Laurent Marquer
Charline Giguet-Covex
A 7,000 years trajectory of socio-ecosystems in the montane belt of the northern French Alps
Frontiers in Environmental Archaeology
vegetation history
vegetation trajectories
human activity
agro-pastoralism
Alps
pollen
title A 7,000 years trajectory of socio-ecosystems in the montane belt of the northern French Alps
title_full A 7,000 years trajectory of socio-ecosystems in the montane belt of the northern French Alps
title_fullStr A 7,000 years trajectory of socio-ecosystems in the montane belt of the northern French Alps
title_full_unstemmed A 7,000 years trajectory of socio-ecosystems in the montane belt of the northern French Alps
title_short A 7,000 years trajectory of socio-ecosystems in the montane belt of the northern French Alps
title_sort 7 000 years trajectory of socio ecosystems in the montane belt of the northern french alps
topic vegetation history
vegetation trajectories
human activity
agro-pastoralism
Alps
pollen
url https://www.frontiersin.org/articles/10.3389/fearc.2024.1474357/full
work_keys_str_mv AT andreajulien a7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT andreajulien a7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT erwanmessager a7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT elisedoyen a7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT davidetienne a7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT laurentmarquer a7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT charlinegiguetcovex a7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT andreajulien 7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT andreajulien 7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT erwanmessager 7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT elisedoyen 7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT davidetienne 7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT laurentmarquer 7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps
AT charlinegiguetcovex 7000yearstrajectoryofsocioecosystemsinthemontanebeltofthenorthernfrenchalps