气候变化领域集成服务门户(CCPortal): Rapid expansion of northern peatlands and doubled estimate of carbon storage

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DOI	10.1038/s41561-019-0454-z
	Rapid expansion of northern peatlands and doubled estimate of carbon storage
	Nichols J.E.; Peteet D.M.
发表日期	2019
ISSN	17520894
卷号	12 期号:11
英文摘要	Northern peatlands are an integral part of the global carbon cycle—a strong sink of atmospheric carbon dioxide and source of methane. Increasing anthropogenic carbon dioxide and methane in the atmosphere are thought to strongly impact these environments, and yet, peatlands are not routinely included in Earth system models. Here we present a quantification of the sink and stock of northern peat carbon from the last glacial period through the pre-industrial period. Additional data and new algorithms for reconstructing the history of peat carbon accumulation and the timing of peatland initiation increased the estimate of total northern peat carbon stocks from 545 Gt to 1,055 Gt of carbon. Further, the post-glacial increases in peatland initiation rate and carbon accumulation rate are more abrupt than previously reported. Peatlands have been a strong carbon sink throughout the Holocene, but the atmospheric partial pressure of carbon dioxide has been relatively stable over this period. While processes such as permafrost thaw and coral reef development probably contributed some additional carbon to the atmosphere, we suggest that deep ocean upwelling was the most important mechanism for balancing the peatland sink and maintaining the observed stability. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	amplitude; atmospheric gas; carbon dioxide; carbon sequestration; carbon sink; estimation method; Last Glacial; methane; partial pressure; peatland; permafrost; Postglacial; quantitative analysis; Anthozoa
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124571
作者单位	Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States; NASA Goddard Institute for Space Studies, New York, NY, United States
推荐引用方式 GB/T 7714	Nichols J.E.,Peteet D.M.. Rapid expansion of northern peatlands and doubled estimate of carbon storage[J],2019,12(11).
APA	Nichols J.E.,&Peteet D.M..(2019).Rapid expansion of northern peatlands and doubled estimate of carbon storage.Nature Geoscience,12(11).
MLA	Nichols J.E.,et al."Rapid expansion of northern peatlands and doubled estimate of carbon storage".Nature Geoscience 12.11(2019).