干旱区生态环境知识资源中心(Arid): Climate warming accelerates carbon release from foliar litter-A global synthesis

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DOI	10.1111/gcb.17350
	Climate warming accelerates carbon release from foliar litter-A global synthesis
	Chen, Zihao; Ni, Xiangyin; Patoine, Guillaume; Peng, Changhui; Yue, Kai; Yuan, Ji; Wu, Qiuxia; Eisenhauer, Nico; Guerra, Carlos A.; Bol, Roland; Wu, Fuzhong; Wang, G. Geoff
通讯作者	Wu, FZ
来源期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
EISSN	1365-2486
出版年	2024
卷号	30 期号:5
英文摘要	With over one-third of terrestrial net primary productivity transferring to the litter layer annually, the carbon release from litter serves as a crucial valve in atmospheric carbon dioxide concentrations. However, few quantitative global projections of litter carbon release rate in response to climate change exist. Here, we combined a global foliar litter carbon release dataset (8973 samples) to generate spatially explicitly estimates of the response of their residence time (tau) to climate change. Results show a global mean litter carbon release rate (k$$ k $$) of 0.69 year-1 (ranging from 0.09-5.6 year-1). Under future climate scenarios, global mean tau is projected to decrease by a mean of 2.7% (SSP 1-2.6) and 5.9% (SSP 5-8.5) during 2071-2100 period. Locally, the alleviation of temperature and moisture restrictions corresponded to obvious decreases in tau in cold and arid regions, respectively. In contract, tau in tropical humid broadleaf forests increased by 4.6% under SSP 5-8.5. Our findings highlight the vegetation type as a powerful proxy for explaining global patterns in foliar litter carbon release rates and the role of climate conditions in predicting responses of carbon release to climate change. Our observation-based estimates could refine carbon cycle parameterization, improving projections of carbon cycle-climate feedbacks. This study presents the first attempt to quantitative information on litter carbon release rate at the global scale. Our analysis supports the concern that rising temperatures speed up the carbon loss from litter to soil or atmosphere, especially in cold biomes with slower carbon turnover times, potentially leading to a positive litter carbon-climate feedback that could, in turn, exacer.image
英文关键词	carbon release carbon residence time climate change litter decomposition vegetation type
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001232173300001
WOS关键词	SOIL ORGANIC-MATTER ; DECOMPOSITION ; PATTERNS ; MODEL ; TEMPERATURE ; DYNAMICS ; NITROGEN ; DRIVERS ; BIOMASS ; FOREST
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403985
推荐引用方式 GB/T 7714	Chen, Zihao,Ni, Xiangyin,Patoine, Guillaume,et al. Climate warming accelerates carbon release from foliar litter-A global synthesis[J],2024,30(5).
APA	Chen, Zihao.,Ni, Xiangyin.,Patoine, Guillaume.,Peng, Changhui.,Yue, Kai.,...&Wang, G. Geoff.(2024).Climate warming accelerates carbon release from foliar litter-A global synthesis.GLOBAL CHANGE BIOLOGY,30(5).
MLA	Chen, Zihao,et al."Climate warming accelerates carbon release from foliar litter-A global synthesis".GLOBAL CHANGE BIOLOGY 30.5(2024).