气候变化领域集成服务门户(CCPortal): A transient south subtropical forest ecosystem in central China driven by rapid global warming during the Paleocene-Eocene Thermal Maximum

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DOI	10.1016/j.gr.2021.08.005
	A transient south subtropical forest ecosystem in central China driven by rapid global warming during the Paleocene-Eocene Thermal Maximum
	Xie, Yulong; Wu, Fuli; Fang, Xiaomin
通讯作者	Wu, FL (通讯作者)
发表日期	2022
ISSN	1342-937X
EISSN	1878-0571
起始页码	192
结束页码	202
卷号	101
英文摘要	Rapid global warming during the Paleocene-Eocene Thermal Maximum (PETM) profoundly affected the marine and terrestrial environments. However, details of the climate and vegetation of subtropical and arid regions of central China during the hyperthermal event are poorly understood. Here, we report a palynological record from the black shale of the lowermost Yangxi Formation exposed in Songzi city, western Jianghan Basin, central China. Biostratigraphy, magnetostratigraphy and isotope stratigraphy indicate a PETM age for the sedimentary succession. The palynological assemblage was characterized by high abundances of diverse tropical and subtropical broadleaved tree pollen, providing strong evidence of a dense south subtropical forest ecosystem that once existed in the arid belt of central China during the PETM. The reconstructed climatic parameters indicate an extremely warm and humid south subtropical climate, with mean annual temperatures (MAT) ranging from 21 to 24 degrees C and mean annual precipitation (MAP) ranging from 1396 to 1997 mm. The reconstructed precipitation was surprisingly high for such an arid setting that widespread arid climate prevailed in central China at that time. These findings demonstrate that rapid global warming during the PETM significantly increased precipitation, leading to the growth of dense forest ecosystems as well as increasing lake eutrophication in central China. The changes to precipitation and terrestrial ecosystems during this warming event are considerably more significant than previously reported in other mid-latitude regions, and highlighting the need to consider regional geographic characteristics to fully understand how the environment responds to rapid global warming. (c) 2021 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
关键词	CARBON-ISOTOPE EXCURSION EXTREME PRECIPITATION EARLIEST EOCENE FUSHUN BASIN CLIMATE EVOLUTION VEGETATION RESOLUTION PRIMATES POLLEN
英文关键词	PETM; Forest; Palynological record; Central China; Songzi
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000702840000005
来源期刊	GONDWANA RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260560
推荐引用方式 GB/T 7714	Xie, Yulong,Wu, Fuli,Fang, Xiaomin. A transient south subtropical forest ecosystem in central China driven by rapid global warming during the Paleocene-Eocene Thermal Maximum[J]. 中国科学院青藏高原研究所,2022,101.
APA	Xie, Yulong,Wu, Fuli,&Fang, Xiaomin.(2022).A transient south subtropical forest ecosystem in central China driven by rapid global warming during the Paleocene-Eocene Thermal Maximum.GONDWANA RESEARCH,101.
MLA	Xie, Yulong,et al."A transient south subtropical forest ecosystem in central China driven by rapid global warming during the Paleocene-Eocene Thermal Maximum".GONDWANA RESEARCH 101(2022).