Human and climate global-scale imprint on sediment transfer during the Holocene

Detalhes bibliográficos
Autor(a) principal: Jenny, Jean Philippe
Data de Publicação: 2019
Outros Autores: Koirala, Sujan, Gregory-Eaves, Irene, Francus, Pierre, Niemann, Christoph, Ahrens, Bernhard, Brovkin, Victor, Baud, Alexandre, Ojala, Antti E. K., Normandeau, Alexandre, Zolitschka, Bernd, Carvalhais, Nuno
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/104935
Resumo: This study was supported by the AXA Research Fund (to J.-P.J.), the Canada Research Chairs Program and NSERC (P.F. and I.G.-E.), and is a contribution for the Varve Working Group and the working group on "Global Soil and Sediment transfer in the Anthropocene," within the International Future Earth core project Past Global Changes (PAGES), from which the original idea emerged.
id RCAP_c90a65f0ef401a3cd4f227981eb24ca9
oai_identifier_str oai:run.unl.pt:10362/104935
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Human and climate global-scale imprint on sediment transfer during the HoloceneC agesGlobal soil erosionLake recordsPollensVarved sedimentsGeneralSDG 13 - Climate ActionSDG 15 - Life on LandThis study was supported by the AXA Research Fund (to J.-P.J.), the Canada Research Chairs Program and NSERC (P.F. and I.G.-E.), and is a contribution for the Varve Working Group and the working group on "Global Soil and Sediment transfer in the Anthropocene," within the International Future Earth core project Past Global Changes (PAGES), from which the original idea emerged.Accelerated soil erosion has become a pervasive feature on landscapes around the world and is recognized to have substantial implications for land productivity, downstream water quality, and biogeochemical cycles. However, the scarcity of global syntheses that consider long-term processes has limited our understanding of the timing, the amplitude, and the extent of soil erosion over millennial time scales. As such, we lack the ability to make predictions about the responses of soil erosion to long-term climate and land cover changes. Here, we reconstruct sedimentation rates for 632 lakes based on chronologies constrained by 3,980 calibrated 14C ages to assess the relative changes in lake-watershed erosion rates over the last 12,000 y. Estimated soil erosion dynamics were then complemented with land cover reconstructions inferred from 43,669 pollen samples and with climate time series from the Max Planck Institute Earth System Model. Our results show that a significant portion of the Earth surface shifted to human-driven soil erosion rate already 4,000 y ago. In particular, inferred soil erosion rates increased in 35% of the watersheds, and most of these sites showed a decrease in the proportion of arboreal pollen, which would be expected with land clearance. Further analysis revealed that land cover change was the main driver of inferred soil erosion in 70% of all studied watersheds. This study suggests that soil erosion has been altering terrestrial and aquatic ecosystems for millennia, leading to carbon (C) losses that could have ultimately induced feed-backs on the climate system.DCEA - Departamento de Ciências e Engenharia do AmbienteRUNJenny, Jean PhilippeKoirala, SujanGregory-Eaves, IreneFrancus, PierreNiemann, ChristophAhrens, BernhardBrovkin, VictorBaud, AlexandreOjala, Antti E. K.Normandeau, AlexandreZolitschka, BerndCarvalhais, Nuno2020-09-29T22:22:52Z2019-11-122019-11-12T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article5application/pdfhttp://hdl.handle.net/10362/104935eng0027-8424PURE: 19001412https://doi.org/10.1073/pnas.1908179116info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:50:23Zoai:run.unl.pt:10362/104935Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:40:22.215579Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Human and climate global-scale imprint on sediment transfer during the Holocene
title Human and climate global-scale imprint on sediment transfer during the Holocene
spellingShingle Human and climate global-scale imprint on sediment transfer during the Holocene
Jenny, Jean Philippe
C ages
Global soil erosion
Lake records
Pollens
Varved sediments
General
SDG 13 - Climate Action
SDG 15 - Life on Land
title_short Human and climate global-scale imprint on sediment transfer during the Holocene
title_full Human and climate global-scale imprint on sediment transfer during the Holocene
title_fullStr Human and climate global-scale imprint on sediment transfer during the Holocene
title_full_unstemmed Human and climate global-scale imprint on sediment transfer during the Holocene
title_sort Human and climate global-scale imprint on sediment transfer during the Holocene
author Jenny, Jean Philippe
author_facet Jenny, Jean Philippe
Koirala, Sujan
Gregory-Eaves, Irene
Francus, Pierre
Niemann, Christoph
Ahrens, Bernhard
Brovkin, Victor
Baud, Alexandre
Ojala, Antti E. K.
Normandeau, Alexandre
Zolitschka, Bernd
Carvalhais, Nuno
author_role author
author2 Koirala, Sujan
Gregory-Eaves, Irene
Francus, Pierre
Niemann, Christoph
Ahrens, Bernhard
Brovkin, Victor
Baud, Alexandre
Ojala, Antti E. K.
Normandeau, Alexandre
Zolitschka, Bernd
Carvalhais, Nuno
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv DCEA - Departamento de Ciências e Engenharia do Ambiente
RUN
dc.contributor.author.fl_str_mv Jenny, Jean Philippe
Koirala, Sujan
Gregory-Eaves, Irene
Francus, Pierre
Niemann, Christoph
Ahrens, Bernhard
Brovkin, Victor
Baud, Alexandre
Ojala, Antti E. K.
Normandeau, Alexandre
Zolitschka, Bernd
Carvalhais, Nuno
dc.subject.por.fl_str_mv C ages
Global soil erosion
Lake records
Pollens
Varved sediments
General
SDG 13 - Climate Action
SDG 15 - Life on Land
topic C ages
Global soil erosion
Lake records
Pollens
Varved sediments
General
SDG 13 - Climate Action
SDG 15 - Life on Land
description This study was supported by the AXA Research Fund (to J.-P.J.), the Canada Research Chairs Program and NSERC (P.F. and I.G.-E.), and is a contribution for the Varve Working Group and the working group on "Global Soil and Sediment transfer in the Anthropocene," within the International Future Earth core project Past Global Changes (PAGES), from which the original idea emerged.
publishDate 2019
dc.date.none.fl_str_mv 2019-11-12
2019-11-12T00:00:00Z
2020-09-29T22:22:52Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/104935
url http://hdl.handle.net/10362/104935
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0027-8424
PURE: 19001412
https://doi.org/10.1073/pnas.1908179116
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 5
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799138019248177152

Registros relacionados