气候变化领域集成服务门户(CCPortal): Six-fold increase of atmospheric pCO2 during the Permian

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DOI	10.1038/s41467-021-22298-7
	Six-fold increase of atmospheric pCO2 during the Permian–Triassic mass extinction
	Wu Y.; Chu D.; Tong J.; Song H.; Dal Corso J.; Wignall P.B.; Song H.; Du Y.; Cui Y.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The Permian–Triassic mass extinction was marked by a massive release of carbon into the ocean-atmosphere system, evidenced by a sharp negative carbon isotope excursion. Large carbon emissions would have increased atmospheric pCO2 and caused global warming. However, the magnitude of pCO2 changes during the PTME has not yet been estimated. Here, we present a continuous pCO2 record across the PTME reconstructed from high-resolution δ13C of C3 plants from southwestern China. We show that pCO2 increased from 426 +133/−96 ppmv in the latest Permian to 2507 +4764/−1193 ppmv at the PTME within about 75 kyr, and that the reconstructed pCO2 significantly correlates with sea surface temperatures. Mass balance modelling suggests that volcanic CO2 is probably not the only trigger of the carbon cycle perturbation, and that large quantities of 13C-depleted carbon emission from organic matter and methane were likely required during complex interactions with the Siberian Traps volcanism. © 2021, The Author(s).
语种	英语
scopus关键词	carbon 13; carbon dioxide; methane; organic matter; atmosphere-ocean system; atmospheric gas; carbon cycle; carbon dioxide; carbon emission; carbon isotope; mass extinction; organic matter; Permian; Article; atmosphere; C3 plant; calculation; carbon cycle; carbon dioxide tension; China; end Permian mass extinction; sea surface temperature; China
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250721
作者单位	State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan, China; Department of Earth and Environmental Studies, Montclair State University, Montclair, NJ, United States; School of Earth and Environment, University of Leeds, Leeds, United Kingdom
推荐引用方式 GB/T 7714	Wu Y.,Chu D.,Tong J.,等. Six-fold increase of atmospheric pCO2 during the Permian–Triassic mass extinction[J],2021,12(1).
APA	Wu Y..,Chu D..,Tong J..,Song H..,Dal Corso J..,...&Cui Y..(2021).Six-fold increase of atmospheric pCO2 during the Permian–Triassic mass extinction.Nature Communications,12(1).
MLA	Wu Y.,et al."Six-fold increase of atmospheric pCO2 during the Permian–Triassic mass extinction".Nature Communications 12.1(2021).