A paleoecological perspective on 1450 years of human impacts from a lake in southern Greenland.
International audience A multiproxy sedimentary record from Lake Igaliku in southern Greenland documents 1450 years of human impacts on the landscape. Diatoms, scaled chrysophytes, and C and N geochemistry show perturbations consistent with recent agricultural activities (post-ad 1980), superimposed...
Published in: | The Holocene |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2012
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-00725295 https://hal.archives-ouvertes.fr/hal-00725295/document https://hal.archives-ouvertes.fr/hal-00725295/file/2012%20B%20Perren,.Petit.LAc%20Groenland%20The%20Holocene.pdf https://doi.org/10.1177/0959683612437865 |
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ftccsdartic:oai:HAL:hal-00725295v1 |
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openpolar |
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Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
climate change agriculture δ15N diatoms Greenland Norse [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDE.MCG]Environmental Sciences/Global Changes [SDE.ES]Environmental Sciences/Environmental and Society |
spellingShingle |
climate change agriculture δ15N diatoms Greenland Norse [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDE.MCG]Environmental Sciences/Global Changes [SDE.ES]Environmental Sciences/Environmental and Society Perren, Bianca B. Massa, Charly Bichet, Vincent Gauthier, Emilie Mathieu, Olivier Petit, Christophe Richard, Hervé A paleoecological perspective on 1450 years of human impacts from a lake in southern Greenland. |
topic_facet |
climate change agriculture δ15N diatoms Greenland Norse [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDE.MCG]Environmental Sciences/Global Changes [SDE.ES]Environmental Sciences/Environmental and Society |
description |
International audience A multiproxy sedimentary record from Lake Igaliku in southern Greenland documents 1450 years of human impacts on the landscape. Diatoms, scaled chrysophytes, and C and N geochemistry show perturbations consistent with recent agricultural activities (post-ad 1980), superimposed upon long-term environmental variability. While the response to Norse agriculture (~ad 986-1450) is weak, the biological response to the last 30 years of modern sheep farming is marked, with drastic changes in diatom taxa, δ13C and δ15N isotopic ratios, and a sharp increase in scaled chrysophytes. Indeed, current conditions in the lake during the last 30 years are unprecedented in the context of the last 1450 years. The dominant driver for recent changes is likely an intensification of agricultural practices combined with warming summer temperatures. Warm temperatures and agricultural disturbance together during Norse Landnám did not lead to the marked changes seen in the modern lake environment over the last 30 years. The synergistic response between increased climate warming and agriculture will likely have unanticipated effects. These findings confirm the sensitivity of Arctic lakes to external anthropogenic forcing and are the first analyses of their kind for the effects of agriculture in Greenland. |
author2 |
Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE) Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Biogéosciences UMR 6282 Dijon (BGS) Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS) Archéologies et Sciences de l'Antiquité (ArScAn) Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS) Université Paris 1 Panthéon-Sorbonne - UFR Histoire de l'art et archéologie (UP1 UFR03) Université Paris 1 Panthéon-Sorbonne (UP1) Archéologies environnementales Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Perren, Bianca B. Massa, Charly Bichet, Vincent Gauthier, Emilie Mathieu, Olivier Petit, Christophe Richard, Hervé |
author_facet |
Perren, Bianca B. Massa, Charly Bichet, Vincent Gauthier, Emilie Mathieu, Olivier Petit, Christophe Richard, Hervé |
author_sort |
Perren, Bianca B. |
title |
A paleoecological perspective on 1450 years of human impacts from a lake in southern Greenland. |
title_short |
A paleoecological perspective on 1450 years of human impacts from a lake in southern Greenland. |
title_full |
A paleoecological perspective on 1450 years of human impacts from a lake in southern Greenland. |
title_fullStr |
A paleoecological perspective on 1450 years of human impacts from a lake in southern Greenland. |
title_full_unstemmed |
A paleoecological perspective on 1450 years of human impacts from a lake in southern Greenland. |
title_sort |
paleoecological perspective on 1450 years of human impacts from a lake in southern greenland. |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.archives-ouvertes.fr/hal-00725295 https://hal.archives-ouvertes.fr/hal-00725295/document https://hal.archives-ouvertes.fr/hal-00725295/file/2012%20B%20Perren,.Petit.LAc%20Groenland%20The%20Holocene.pdf https://doi.org/10.1177/0959683612437865 |
long_lat |
ENVELOPE(-45.421,-45.421,60.988,60.988) |
geographic |
Arctic Greenland Igaliku |
geographic_facet |
Arctic Greenland Igaliku |
genre |
Arctic Climate change Greenland Igaliku |
genre_facet |
Arctic Climate change Greenland Igaliku |
op_source |
ISSN: 0959-6836 EISSN: 1477-0911 The Holocene https://hal.archives-ouvertes.fr/hal-00725295 The Holocene, London: Sage, 2012, 22 (9), pp.1025-1034. ⟨10.1177/0959683612437865⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1177/0959683612437865 hal-00725295 https://hal.archives-ouvertes.fr/hal-00725295 https://hal.archives-ouvertes.fr/hal-00725295/document https://hal.archives-ouvertes.fr/hal-00725295/file/2012%20B%20Perren,.Petit.LAc%20Groenland%20The%20Holocene.pdf doi:10.1177/0959683612437865 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1177/0959683612437865 |
container_title |
The Holocene |
container_volume |
22 |
container_issue |
9 |
container_start_page |
1025 |
op_container_end_page |
1034 |
_version_ |
1766339905439399936 |
spelling |
ftccsdartic:oai:HAL:hal-00725295v1 2023-05-15T15:08:34+02:00 A paleoecological perspective on 1450 years of human impacts from a lake in southern Greenland. Perren, Bianca B. Massa, Charly Bichet, Vincent Gauthier, Emilie Mathieu, Olivier Petit, Christophe Richard, Hervé Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE) Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Biogéosciences UMR 6282 Dijon (BGS) Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS) Archéologies et Sciences de l'Antiquité (ArScAn) Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS) Université Paris 1 Panthéon-Sorbonne - UFR Histoire de l'art et archéologie (UP1 UFR03) Université Paris 1 Panthéon-Sorbonne (UP1) Archéologies environnementales Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS) 2012 https://hal.archives-ouvertes.fr/hal-00725295 https://hal.archives-ouvertes.fr/hal-00725295/document https://hal.archives-ouvertes.fr/hal-00725295/file/2012%20B%20Perren,.Petit.LAc%20Groenland%20The%20Holocene.pdf https://doi.org/10.1177/0959683612437865 en eng HAL CCSD London: Sage info:eu-repo/semantics/altIdentifier/doi/10.1177/0959683612437865 hal-00725295 https://hal.archives-ouvertes.fr/hal-00725295 https://hal.archives-ouvertes.fr/hal-00725295/document https://hal.archives-ouvertes.fr/hal-00725295/file/2012%20B%20Perren,.Petit.LAc%20Groenland%20The%20Holocene.pdf doi:10.1177/0959683612437865 info:eu-repo/semantics/OpenAccess ISSN: 0959-6836 EISSN: 1477-0911 The Holocene https://hal.archives-ouvertes.fr/hal-00725295 The Holocene, London: Sage, 2012, 22 (9), pp.1025-1034. ⟨10.1177/0959683612437865⟩ climate change agriculture δ15N diatoms Greenland Norse [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDE.MCG]Environmental Sciences/Global Changes [SDE.ES]Environmental Sciences/Environmental and Society info:eu-repo/semantics/article Journal articles 2012 ftccsdartic https://doi.org/10.1177/0959683612437865 2021-10-24T01:33:09Z International audience A multiproxy sedimentary record from Lake Igaliku in southern Greenland documents 1450 years of human impacts on the landscape. Diatoms, scaled chrysophytes, and C and N geochemistry show perturbations consistent with recent agricultural activities (post-ad 1980), superimposed upon long-term environmental variability. While the response to Norse agriculture (~ad 986-1450) is weak, the biological response to the last 30 years of modern sheep farming is marked, with drastic changes in diatom taxa, δ13C and δ15N isotopic ratios, and a sharp increase in scaled chrysophytes. Indeed, current conditions in the lake during the last 30 years are unprecedented in the context of the last 1450 years. The dominant driver for recent changes is likely an intensification of agricultural practices combined with warming summer temperatures. Warm temperatures and agricultural disturbance together during Norse Landnám did not lead to the marked changes seen in the modern lake environment over the last 30 years. The synergistic response between increased climate warming and agriculture will likely have unanticipated effects. These findings confirm the sensitivity of Arctic lakes to external anthropogenic forcing and are the first analyses of their kind for the effects of agriculture in Greenland. Article in Journal/Newspaper Arctic Climate change Greenland Igaliku Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Greenland Igaliku ENVELOPE(-45.421,-45.421,60.988,60.988) The Holocene 22 9 1025 1034 |