Impact of climate changes on vegetation and human societies during the Holocene in the South Caucasus (Vanevan, Armenia): A multiproxy approach including pollen, NPPs and brGDGTs
International audience Relationships between steppe vegetation, human practices and climate changes in the past are crucial to disentangle human development in Eurasia. In this frame, our study investigates (1) modern pollen-vegetation relationships and (2) changes in vegetation, human activity and...
Published in: | Quaternary Science Reviews |
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Main Authors: | , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2022
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Subjects: | |
Online Access: | https://insu.hal.science/insu-03710173 https://insu.hal.science/insu-03710173/document https://insu.hal.science/insu-03710173/file/Robles%20et%20al.,%202021%20QSR%2009-12-21.pdf https://doi.org/10.1016/j.quascirev.2021.107297 |
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ftunivstetienne:oai:HAL:insu-03710173v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université Jean Monnet – Saint-Etienne: HAL |
op_collection_id |
ftunivstetienne |
language |
English |
topic |
Vegetation dynamics Human impact Agriculture Water level changes Paleoclimate Arid climate events Transfer functions XRF [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology |
spellingShingle |
Vegetation dynamics Human impact Agriculture Water level changes Paleoclimate Arid climate events Transfer functions XRF [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology Robles, Mary Peyron, Odile Brugiapaglia, Elisabetta Ménot, Guillemette Dugerdil, Lucas Ollivier, Vincent Ansanay-Alex, Salomé Develle, Anne-Lise Tozalakyan, Petros Meliksetian, Khachatur Sahakyan, Kristina Sahakyan, Lilit Perello, Bérengère Badalyan, Ruben Colombié, Claude Joannin, Sébastien Impact of climate changes on vegetation and human societies during the Holocene in the South Caucasus (Vanevan, Armenia): A multiproxy approach including pollen, NPPs and brGDGTs |
topic_facet |
Vegetation dynamics Human impact Agriculture Water level changes Paleoclimate Arid climate events Transfer functions XRF [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology |
description |
International audience Relationships between steppe vegetation, human practices and climate changes in the past are crucial to disentangle human development in Eurasia. In this frame, our study investigates (1) modern pollen-vegetation relationships and (2) changes in vegetation, human activity and climate in the Holocene record of Vanevan peat (south-eastern shore of Lake Sevan, Armenia), using a multiproxy approach including sediment geochemistry (XRF), pollen, Non-Pollen Palynomorphs (NPPs), and branched Glycerol Dialkyl Glycerol Tetraethers (brGDGTs). Climate reconstructions are provided by (1) water-level changes, (2) brGDGTs, and (3) pollen transfer functions (multi-method approach: Modern Analogue Technique, Weighted Averaging Partial Least Squares regression, Random Forest, and Boosted Regression Trees). Modern pollen assemblages are selected along an altitudinal transect in Armenia. They show a dominance of Chenopodiaceae in semi-desert/steppe regions while meadows steppes, subalpine, and alpine meadows are dominated by Poaceae. Past vegetation is characterized by steppes dominated by Poaceae surrounded during the Mid-Holocene (8200-4200 a cal BP) by scarce open woodlands. Humans have influenced the local vegetation, mainly through their agricultural practices present since 5200 a cal BP with several intensification steps. Our reconstruction indicates a climate shift from a cold and arid Early Holocene toward a warmer and more humid Mid-Late Holocene. An aridification trend marks the last 5000 years causing a drop in water level, which allowed humans to live and cultivate on Lake Sevan shores. Arid events are recorded at 6.2 ka, 5.2 ka, 4.2 ka and 2.8 ka a cal BP, which are commonly related to multi-centennial-scale variations of Westerlies activity (North Atlantic Oscillation). Through our temperature reconstruction, we can assign (1) the 5.2 and 2.8 ka events as being cold and probably related to a strong Siberian High, and (2) the 4.2 ka event as being warm associated with high Arabian subtropical ... |
author2 |
Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) Università degli Studi del Molise = University of Molise (UNIMOL) Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE) École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS) Laboratoire méditerranéen de préhistoire Europe-Afrique (LAMPEA) Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture (MC) Ecosystèmes continentaux et risques environnementaux (ECCOREV) Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS) Environnements, Dynamiques et Territoires de Montagne (EDYTEM) Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) National Academy of Sciences of the Republic of Armenia Yerevan (NAS RA) ARCHEORIENT - Environnements et sociétés de l'Orient ancien (Archéorient) Université Lumière - Lyon 2 (UL2)-Centre National de la Recherche Scientifique (CNRS) Institute of Archaeology and Ethnography of National Academy of Sciences of Armenia (IAE NAS RA) |
format |
Article in Journal/Newspaper |
author |
Robles, Mary Peyron, Odile Brugiapaglia, Elisabetta Ménot, Guillemette Dugerdil, Lucas Ollivier, Vincent Ansanay-Alex, Salomé Develle, Anne-Lise Tozalakyan, Petros Meliksetian, Khachatur Sahakyan, Kristina Sahakyan, Lilit Perello, Bérengère Badalyan, Ruben Colombié, Claude Joannin, Sébastien |
author_facet |
Robles, Mary Peyron, Odile Brugiapaglia, Elisabetta Ménot, Guillemette Dugerdil, Lucas Ollivier, Vincent Ansanay-Alex, Salomé Develle, Anne-Lise Tozalakyan, Petros Meliksetian, Khachatur Sahakyan, Kristina Sahakyan, Lilit Perello, Bérengère Badalyan, Ruben Colombié, Claude Joannin, Sébastien |
author_sort |
Robles, Mary |
title |
Impact of climate changes on vegetation and human societies during the Holocene in the South Caucasus (Vanevan, Armenia): A multiproxy approach including pollen, NPPs and brGDGTs |
title_short |
Impact of climate changes on vegetation and human societies during the Holocene in the South Caucasus (Vanevan, Armenia): A multiproxy approach including pollen, NPPs and brGDGTs |
title_full |
Impact of climate changes on vegetation and human societies during the Holocene in the South Caucasus (Vanevan, Armenia): A multiproxy approach including pollen, NPPs and brGDGTs |
title_fullStr |
Impact of climate changes on vegetation and human societies during the Holocene in the South Caucasus (Vanevan, Armenia): A multiproxy approach including pollen, NPPs and brGDGTs |
title_full_unstemmed |
Impact of climate changes on vegetation and human societies during the Holocene in the South Caucasus (Vanevan, Armenia): A multiproxy approach including pollen, NPPs and brGDGTs |
title_sort |
impact of climate changes on vegetation and human societies during the holocene in the south caucasus (vanevan, armenia): a multiproxy approach including pollen, npps and brgdgts |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://insu.hal.science/insu-03710173 https://insu.hal.science/insu-03710173/document https://insu.hal.science/insu-03710173/file/Robles%20et%20al.,%202021%20QSR%2009-12-21.pdf https://doi.org/10.1016/j.quascirev.2021.107297 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://insu.hal.science/insu-03710173 Quaternary Science Reviews, 2022, 277, pp.107297. ⟨10.1016/j.quascirev.2021.107297⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2021.107297 insu-03710173 https://insu.hal.science/insu-03710173 https://insu.hal.science/insu-03710173/document https://insu.hal.science/insu-03710173/file/Robles%20et%20al.,%202021%20QSR%2009-12-21.pdf BIBCODE: 2022QSRv.27707297R doi:10.1016/j.quascirev.2021.107297 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2021.107297 |
container_title |
Quaternary Science Reviews |
container_volume |
277 |
container_start_page |
107297 |
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1799485628136554496 |
spelling |
ftunivstetienne:oai:HAL:insu-03710173v1 2024-05-19T07:45:33+00:00 Impact of climate changes on vegetation and human societies during the Holocene in the South Caucasus (Vanevan, Armenia): A multiproxy approach including pollen, NPPs and brGDGTs Robles, Mary Peyron, Odile Brugiapaglia, Elisabetta Ménot, Guillemette Dugerdil, Lucas Ollivier, Vincent Ansanay-Alex, Salomé Develle, Anne-Lise Tozalakyan, Petros Meliksetian, Khachatur Sahakyan, Kristina Sahakyan, Lilit Perello, Bérengère Badalyan, Ruben Colombié, Claude Joannin, Sébastien Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) Università degli Studi del Molise = University of Molise (UNIMOL) Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE) École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS) Laboratoire méditerranéen de préhistoire Europe-Afrique (LAMPEA) Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture (MC) Ecosystèmes continentaux et risques environnementaux (ECCOREV) Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS) Environnements, Dynamiques et Territoires de Montagne (EDYTEM) Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) National Academy of Sciences of the Republic of Armenia Yerevan (NAS RA) ARCHEORIENT - Environnements et sociétés de l'Orient ancien (Archéorient) Université Lumière - Lyon 2 (UL2)-Centre National de la Recherche Scientifique (CNRS) Institute of Archaeology and Ethnography of National Academy of Sciences of Armenia (IAE NAS RA) 2022-02 https://insu.hal.science/insu-03710173 https://insu.hal.science/insu-03710173/document https://insu.hal.science/insu-03710173/file/Robles%20et%20al.,%202021%20QSR%2009-12-21.pdf https://doi.org/10.1016/j.quascirev.2021.107297 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2021.107297 insu-03710173 https://insu.hal.science/insu-03710173 https://insu.hal.science/insu-03710173/document https://insu.hal.science/insu-03710173/file/Robles%20et%20al.,%202021%20QSR%2009-12-21.pdf BIBCODE: 2022QSRv.27707297R doi:10.1016/j.quascirev.2021.107297 info:eu-repo/semantics/OpenAccess ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://insu.hal.science/insu-03710173 Quaternary Science Reviews, 2022, 277, pp.107297. ⟨10.1016/j.quascirev.2021.107297⟩ Vegetation dynamics Human impact Agriculture Water level changes Paleoclimate Arid climate events Transfer functions XRF [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology info:eu-repo/semantics/article Journal articles 2022 ftunivstetienne https://doi.org/10.1016/j.quascirev.2021.107297 2024-05-01T23:53:49Z International audience Relationships between steppe vegetation, human practices and climate changes in the past are crucial to disentangle human development in Eurasia. In this frame, our study investigates (1) modern pollen-vegetation relationships and (2) changes in vegetation, human activity and climate in the Holocene record of Vanevan peat (south-eastern shore of Lake Sevan, Armenia), using a multiproxy approach including sediment geochemistry (XRF), pollen, Non-Pollen Palynomorphs (NPPs), and branched Glycerol Dialkyl Glycerol Tetraethers (brGDGTs). Climate reconstructions are provided by (1) water-level changes, (2) brGDGTs, and (3) pollen transfer functions (multi-method approach: Modern Analogue Technique, Weighted Averaging Partial Least Squares regression, Random Forest, and Boosted Regression Trees). Modern pollen assemblages are selected along an altitudinal transect in Armenia. They show a dominance of Chenopodiaceae in semi-desert/steppe regions while meadows steppes, subalpine, and alpine meadows are dominated by Poaceae. Past vegetation is characterized by steppes dominated by Poaceae surrounded during the Mid-Holocene (8200-4200 a cal BP) by scarce open woodlands. Humans have influenced the local vegetation, mainly through their agricultural practices present since 5200 a cal BP with several intensification steps. Our reconstruction indicates a climate shift from a cold and arid Early Holocene toward a warmer and more humid Mid-Late Holocene. An aridification trend marks the last 5000 years causing a drop in water level, which allowed humans to live and cultivate on Lake Sevan shores. Arid events are recorded at 6.2 ka, 5.2 ka, 4.2 ka and 2.8 ka a cal BP, which are commonly related to multi-centennial-scale variations of Westerlies activity (North Atlantic Oscillation). Through our temperature reconstruction, we can assign (1) the 5.2 and 2.8 ka events as being cold and probably related to a strong Siberian High, and (2) the 4.2 ka event as being warm associated with high Arabian subtropical ... Article in Journal/Newspaper North Atlantic North Atlantic oscillation Université Jean Monnet – Saint-Etienne: HAL Quaternary Science Reviews 277 107297 |