气候变化领域集成服务门户(CCPortal): Global peatland initiation driven by regionally asynchronous warming

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DOI	10.1073/pnas.1717838115
	Global peatland initiation driven by regionally asynchronous warming
	Morris P.J.; Swindles G.T.; Valdes P.J.; Ivanovic R.F.; Gregoire L.J.; Smith M.W.; Tarasov L.; Haywood A.M.; Bacon K.L.
发表日期	2018
ISSN	0027-8424
起始页码	4851
结束页码	4856
卷号	115 期号:19
英文摘要	Widespread establishment of peatlands since the Last Glacial Maximum represents the activation of a globally important carbon sink, but the drivers of peat initiation are unclear. The role of climate in peat initiation is particularly poorly understood. We used a general circulation model to simulate local changes in climate during the initiation of 1,097 peatlands around the world. We find that peat initiation in deglaciated landscapes in both hemispheres was driven primarily by warming growing seasons, likely through enhanced plant productivity, rather than by any increase in effective precipitation. In Western Siberia, which remained ice-free throughout the last glacial period, the initiation of the world’s largest peatland complex was globally unique in that it was triggered by an increase in effective precipitation that inhibited soil respiration and allowed wetland plant communities to establish. Peat initiation in the tropics was only weakly related to climate change, and appears to have been driven primarily by nonclimatic mechanisms such as waterlogging due to tectonic subsidence. Our findings shed light on the genesis and Holocene climate space of one of the world’s most carbon-dense ecosystem types, with implications for understanding trajectories of ecological change under changing future climates. © 2018 National Academy of Sciences. All rights reserved.
英文关键词	Basal date catalog; Bioclimate; Biogeography; Deglaciation; GCM
语种	英语
scopus关键词	Article; climate change; environmental temperature; greenhouse effect; peatland; precipitation; priority journal; season; tropics; biological model; metabolism; soil; wetland; carbon; Carbon; Global Warming; Models, Biological; Soil; Wetlands
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159050
作者单位	Morris, P.J., School of Geography, University of Leeds, Leeds, LS2 9JT, United Kingdom; Swindles, G.T., School of Geography, University of Leeds, Leeds, LS2 9JT, United Kingdom; Valdes, P.J., School of Geographical Sciences, University of Bristol, Bristol, BS8 1SS, United Kingdom; Ivanovic, R.F., School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom; Gregoire, L.J., School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom; Smith, M.W., School of Geography, University of Leeds, Leeds, LS2 9JT, United Kingdom; Tarasov, L., Department of Physics and Physical Oceanography, Memorial University, St. John’s, NL A1B 3X7, Canada; Haywood, A.M., School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom; Bacon, K.L., School of Geography, University of Leeds, Leeds, LS2 9JT, United Kingdom
推荐引用方式 GB/T 7714	Morris P.J.,Swindles G.T.,Valdes P.J.,et al. Global peatland initiation driven by regionally asynchronous warming[J],2018,115(19).
APA	Morris P.J..,Swindles G.T..,Valdes P.J..,Ivanovic R.F..,Gregoire L.J..,...&Bacon K.L..(2018).Global peatland initiation driven by regionally asynchronous warming.Proceedings of the National Academy of Sciences of the United States of America,115(19).
MLA	Morris P.J.,et al."Global peatland initiation driven by regionally asynchronous warming".Proceedings of the National Academy of Sciences of the United States of America 115.19(2018).