Pollen-based quantitative land-cover reconstruction for northern Asia covering the last 40 ka cal BP
We collected the available relative pollen productivity estimates (PPEs) for 27 major pollen taxa from Eurasia and applied them to estimate plant abundances during the last 40 ka cal BP (calibrated thousand years before present) using pollen counts from 203 fossil pollen records in northern Asia (no...
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Copernicus Publications
2019
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00000562 2023-05-15T17:58:07+02:00 Pollen-based quantitative land-cover reconstruction for northern Asia covering the last 40 ka cal BP Cao, Xianyong Tian, Fang Li, Furong Gaillard, Marie-José Rudaya, Natalia Xu, Qinghai Herzschuh, Ulrike 2019-08 electronic https://doi.org/10.5194/cp-15-1503-2019 https://noa.gwlb.de/receive/cop_mods_00000562 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000530/cp-15-1503-2019.pdf https://cp.copernicus.org/articles/15/1503/2019/cp-15-1503-2019.pdf eng eng Copernicus Publications Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-15-1503-2019 https://noa.gwlb.de/receive/cop_mods_00000562 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000530/cp-15-1503-2019.pdf https://cp.copernicus.org/articles/15/1503/2019/cp-15-1503-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/cp-15-1503-2019 2022-02-08T23:02:17Z We collected the available relative pollen productivity estimates (PPEs) for 27 major pollen taxa from Eurasia and applied them to estimate plant abundances during the last 40 ka cal BP (calibrated thousand years before present) using pollen counts from 203 fossil pollen records in northern Asia (north of 40∘ N). These pollen records were organized into 42 site groups and regional mean plant abundances calculated using the REVEALS (Regional Estimates of Vegetation Abundance from Large Sites) model. Time-series clustering, constrained hierarchical clustering, and detrended canonical correspondence analysis were performed to investigate the regional pattern, time, and strength of vegetation changes, respectively. Reconstructed regional plant functional type (PFT) components for each site group are generally consistent with modern vegetation in that vegetation changes within the regions are characterized by minor changes in the abundance of PFTs rather than by an increase in new PFTs, particularly during the Holocene. We argue that pollen-based REVEALS estimates of plant abundances should be a more reliable reflection of the vegetation as pollen may overestimate the turnover, particularly when a high pollen producer invades areas dominated by low pollen producers. Comparisons with vegetation-independent climate records show that climate change is the primary factor driving land-cover changes at broad spatial and temporal scales. Vegetation changes in certain regions or periods, however, could not be explained by direct climate change, e.g. inland Siberia, where a sharp increase in evergreen conifer tree abundance occurred at ca. 7–8 ka cal BP despite an unchanging climate, potentially reflecting their response to complex climate–permafrost–fire–vegetation interactions and thus a possible long-term lagged climate response. Article in Journal/Newspaper permafrost Siberia Niedersächsisches Online-Archiv NOA Climate of the Past 15 4 1503 1536 |
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Niedersächsisches Online-Archiv NOA |
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language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Cao, Xianyong Tian, Fang Li, Furong Gaillard, Marie-José Rudaya, Natalia Xu, Qinghai Herzschuh, Ulrike Pollen-based quantitative land-cover reconstruction for northern Asia covering the last 40 ka cal BP |
topic_facet |
article Verlagsveröffentlichung |
description |
We collected the available relative pollen productivity estimates (PPEs) for 27 major pollen taxa from Eurasia and applied them to estimate plant abundances during the last 40 ka cal BP (calibrated thousand years before present) using pollen counts from 203 fossil pollen records in northern Asia (north of 40∘ N). These pollen records were organized into 42 site groups and regional mean plant abundances calculated using the REVEALS (Regional Estimates of Vegetation Abundance from Large Sites) model. Time-series clustering, constrained hierarchical clustering, and detrended canonical correspondence analysis were performed to investigate the regional pattern, time, and strength of vegetation changes, respectively. Reconstructed regional plant functional type (PFT) components for each site group are generally consistent with modern vegetation in that vegetation changes within the regions are characterized by minor changes in the abundance of PFTs rather than by an increase in new PFTs, particularly during the Holocene. We argue that pollen-based REVEALS estimates of plant abundances should be a more reliable reflection of the vegetation as pollen may overestimate the turnover, particularly when a high pollen producer invades areas dominated by low pollen producers. Comparisons with vegetation-independent climate records show that climate change is the primary factor driving land-cover changes at broad spatial and temporal scales. Vegetation changes in certain regions or periods, however, could not be explained by direct climate change, e.g. inland Siberia, where a sharp increase in evergreen conifer tree abundance occurred at ca. 7–8 ka cal BP despite an unchanging climate, potentially reflecting their response to complex climate–permafrost–fire–vegetation interactions and thus a possible long-term lagged climate response. |
format |
Article in Journal/Newspaper |
author |
Cao, Xianyong Tian, Fang Li, Furong Gaillard, Marie-José Rudaya, Natalia Xu, Qinghai Herzschuh, Ulrike |
author_facet |
Cao, Xianyong Tian, Fang Li, Furong Gaillard, Marie-José Rudaya, Natalia Xu, Qinghai Herzschuh, Ulrike |
author_sort |
Cao, Xianyong |
title |
Pollen-based quantitative land-cover reconstruction for northern Asia covering the last 40 ka cal BP |
title_short |
Pollen-based quantitative land-cover reconstruction for northern Asia covering the last 40 ka cal BP |
title_full |
Pollen-based quantitative land-cover reconstruction for northern Asia covering the last 40 ka cal BP |
title_fullStr |
Pollen-based quantitative land-cover reconstruction for northern Asia covering the last 40 ka cal BP |
title_full_unstemmed |
Pollen-based quantitative land-cover reconstruction for northern Asia covering the last 40 ka cal BP |
title_sort |
pollen-based quantitative land-cover reconstruction for northern asia covering the last 40 ka cal bp |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/cp-15-1503-2019 https://noa.gwlb.de/receive/cop_mods_00000562 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000530/cp-15-1503-2019.pdf https://cp.copernicus.org/articles/15/1503/2019/cp-15-1503-2019.pdf |
genre |
permafrost Siberia |
genre_facet |
permafrost Siberia |
op_relation |
Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-15-1503-2019 https://noa.gwlb.de/receive/cop_mods_00000562 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000530/cp-15-1503-2019.pdf https://cp.copernicus.org/articles/15/1503/2019/cp-15-1503-2019.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/cp-15-1503-2019 |
container_title |
Climate of the Past |
container_volume |
15 |
container_issue |
4 |
container_start_page |
1503 |
op_container_end_page |
1536 |
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1766166666375331840 |