A pollen record of the Mid‐ Pleistocene Transition from Beijing, North China
ABSTRACT To reconstruct the history of climate and environment in East Asia during the Early Pleistocene, a palynofloral investigation was conducted on fluviolacustrine sediments in Beijing, North China. The results indicate that herb and shrub taxa were dominant in most of the samples, reflecting a...
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Online Access: | http://dx.doi.org/10.1002/jqs.2661 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2661 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2661 |
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crwiley:10.1002/jqs.2661 2024-06-02T07:58:17+00:00 A pollen record of the Mid‐ Pleistocene Transition from Beijing, North China JIANG, HANCHAO GUO, GAOXUAN CAI, XIANGMIN XU, HONGYAN MA, XIAOLIN ZHONG, NING LI, YANHAO 2013 http://dx.doi.org/10.1002/jqs.2661 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2661 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2661 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 28, issue 7, page 720-728 ISSN 0267-8179 1099-1417 journal-article 2013 crwiley https://doi.org/10.1002/jqs.2661 2024-05-03T11:02:06Z ABSTRACT To reconstruct the history of climate and environment in East Asia during the Early Pleistocene, a palynofloral investigation was conducted on fluviolacustrine sediments in Beijing, North China. The results indicate that herb and shrub taxa were dominant in most of the samples, reflecting an open forest grassland covering the Beijing region during much of the Early Pleistocene. This vegetation generally declined during 1.68–1.25 Ma and recovered in part during 1.25–0.96 Ma. From 0.96 Ma, conifers gradually replaced broad‐leaved trees, shrubs and herbs. After 0.65 Ma, the pollen abundance of conifers, shrubs and herbs all increased significantly. These vegetation changes took place in the context of long‐term global cooling during the Late Cenozoic. A significant increase in Antarctic ice volume at 1.25–1.20 Ma and the resultant increased meridional temperature gradient in the Southern Ocean led to prominent anomalous warming in the tropics and increased heat/moisture flow across the Equator, probably resulting in vegetation recovery in the study area to some extent during 1.25–0.96 Ma. From 0.96 Ma, the stepwise decline of vegetation cover in the study area, especially after 0.65 Ma, was driven by further development of global cooling and increase in polar ice volume. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Wiley Online Library Antarctic Southern Ocean Journal of Quaternary Science 28 7 720 728 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT To reconstruct the history of climate and environment in East Asia during the Early Pleistocene, a palynofloral investigation was conducted on fluviolacustrine sediments in Beijing, North China. The results indicate that herb and shrub taxa were dominant in most of the samples, reflecting an open forest grassland covering the Beijing region during much of the Early Pleistocene. This vegetation generally declined during 1.68–1.25 Ma and recovered in part during 1.25–0.96 Ma. From 0.96 Ma, conifers gradually replaced broad‐leaved trees, shrubs and herbs. After 0.65 Ma, the pollen abundance of conifers, shrubs and herbs all increased significantly. These vegetation changes took place in the context of long‐term global cooling during the Late Cenozoic. A significant increase in Antarctic ice volume at 1.25–1.20 Ma and the resultant increased meridional temperature gradient in the Southern Ocean led to prominent anomalous warming in the tropics and increased heat/moisture flow across the Equator, probably resulting in vegetation recovery in the study area to some extent during 1.25–0.96 Ma. From 0.96 Ma, the stepwise decline of vegetation cover in the study area, especially after 0.65 Ma, was driven by further development of global cooling and increase in polar ice volume. |
format |
Article in Journal/Newspaper |
author |
JIANG, HANCHAO GUO, GAOXUAN CAI, XIANGMIN XU, HONGYAN MA, XIAOLIN ZHONG, NING LI, YANHAO |
spellingShingle |
JIANG, HANCHAO GUO, GAOXUAN CAI, XIANGMIN XU, HONGYAN MA, XIAOLIN ZHONG, NING LI, YANHAO A pollen record of the Mid‐ Pleistocene Transition from Beijing, North China |
author_facet |
JIANG, HANCHAO GUO, GAOXUAN CAI, XIANGMIN XU, HONGYAN MA, XIAOLIN ZHONG, NING LI, YANHAO |
author_sort |
JIANG, HANCHAO |
title |
A pollen record of the Mid‐ Pleistocene Transition from Beijing, North China |
title_short |
A pollen record of the Mid‐ Pleistocene Transition from Beijing, North China |
title_full |
A pollen record of the Mid‐ Pleistocene Transition from Beijing, North China |
title_fullStr |
A pollen record of the Mid‐ Pleistocene Transition from Beijing, North China |
title_full_unstemmed |
A pollen record of the Mid‐ Pleistocene Transition from Beijing, North China |
title_sort |
pollen record of the mid‐ pleistocene transition from beijing, north china |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1002/jqs.2661 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2661 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2661 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Journal of Quaternary Science volume 28, issue 7, page 720-728 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.2661 |
container_title |
Journal of Quaternary Science |
container_volume |
28 |
container_issue |
7 |
container_start_page |
720 |
op_container_end_page |
728 |
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1800741586339889152 |