气候变化领域集成服务门户(CCPortal): Carbon turnover times shape topsoil carbon difference between Tibetan Plateau and Arctic tundra

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DOI	10.1016/j.scib.2021.04.019
	Carbon turnover times shape topsoil carbon difference between Tibetan Plateau and Arctic tundra
	Wu, Donghai; Liu, Dan; Wang, Tao; Ding, Jinzhi; He, Yujie; Ciais, Philippe; Zhang, Gengxin; Piao, Shilong
通讯作者	Piao, SL (通讯作者)
发表日期	2021
ISSN	2095-9273
EISSN	2095-9281
起始页码	1698
结束页码	1704
卷号	66 期号:16
英文摘要	The Tibetan Plateau (TP) and Arctic permafrost constitute two large reservoirs of organic carbon, but processes which control carbon accumulation within the surface soil layer of these areas would differ due to the interplay of climate, soil and vegetation type. Here, we synthesized currently available soil carbon data to show that mean organic carbon density in the topsoil (0-10 cm) in TP grassland (3.12 +/- 0.52 kg C m(-2)) is less than half of that in Arctic tundra (6.70 +/- 1.94 kg C m(-2)). Such difference is primarily attributed to their difference in radiocarbon-inferred soil carbon turnover times (547 years for TP grassland versus 1609 years for Arctic tundra) rather than to their marginal difference in topsoil carbon inputs. Our findings highlight the importance of improving regional-specific soil carbon turnover and its controlling mechanisms across permafrost affected zones in ecosystem models to fully represent carbon-climate feedback. (C) 2021 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
关键词	SOIL ORGANIC-MATTER GLOBAL ANALYSIS CLIMATE RADIOCARBON DECOMPOSITION STORAGE LITTER POOLS STOICHIOMETRY ALLOCATION
英文关键词	Tibetan Plateau; Arctic tundra; Soil organic carbon; Net primary production; Carbon turnover time; Radiocarbon
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000686908500017
来源期刊	SCIENCE BULLETIN
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/260508
推荐引用方式 GB/T 7714	Wu, Donghai,Liu, Dan,Wang, Tao,et al. Carbon turnover times shape topsoil carbon difference between Tibetan Plateau and Arctic tundra[J]. 中国科学院青藏高原研究所,2021,66(16).
APA	Wu, Donghai.,Liu, Dan.,Wang, Tao.,Ding, Jinzhi.,He, Yujie.,...&Piao, Shilong.(2021).Carbon turnover times shape topsoil carbon difference between Tibetan Plateau and Arctic tundra.SCIENCE BULLETIN,66(16).
MLA	Wu, Donghai,et al."Carbon turnover times shape topsoil carbon difference between Tibetan Plateau and Arctic tundra".SCIENCE BULLETIN 66.16(2021).