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	Peatland initiation and carbon accumulation in China over the last 50,000 years
	Li Q.; Zhao Y.; Zhao Y.; Li Q.
	2014
关键词	Peat lands Peat inception C accumulation rate Summer monsoon China tibetan plateau climate-change late pleistocene isotope stage-3 atmospheric ch4 summer monsoon early holocene record bp vegetation
英文摘要	Peatlands are one of the largest biosphere carbon (C) reservoirs. Understanding the responses of these C-rich ecosystems to past climate change will provide useful insights into projecting the fate of peatland C in the future. Here we present a data synthesis of peatland basal ages and C accumulation rates in China over the last 50 ka (1 ka = 1000 cal yr BP) and provide a conceptual framework for understanding the dominant controls of wetland dynamics. China's peatlands are distributed throughout the climate domain from 5 C to 18 C in mean annual temperature and from 200 to 1600 mm in mean annual precipitation. Peatland basal dates show that subtropical peatlands initiated more frequently during the Marine Isotope Stage 3 (MIS 3) than in the Holocene, while northern peatlands mostly initiated in the early and mid Holocene. Peat-core data from peatlands in northern China show high apparent rates of C accumulation (30-40 g C m-(2) yr(-1)) during the early and mid Holocene. The peatland initiation and C accumulation histories are closely linked with summer insolation and monsoon intensities, suggesting the possible causal connection between peatland dynamics and Asian summer monsoon. Furthermore, peatland formation and expansion in the subtropical region of China, especially during the MIS 3 and the Bolling-Allerod periods, might have contributed to high atmospheric methane concentrations. (C) 2013 Elsevier B.V. All rights reserved.
出处	Earth-Science Reviews
卷	128
页	139-146
收录类别	SCI
语种	英语
ISSN号	0012-8252
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/29373]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Li Q.,Zhao Y.,Zhao Y.,et al. Peatland initiation and carbon accumulation in China over the last 50,000 years. 2014.

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