Climate and litter C/N ratio constrain soil organic carbon accumulation

doi:10.1093/nsr/nwz045

	Climate and litter C/N ratio constrain soil organic carbon accumulation
	Zhou, Guoyi 1; Xu, Shan ; Ciais, Philippe 2; Manzoni, Stefano 3,4; Fang, Jingyun5 ; Yu, Guirui 6; Tang, Xuli ; Zhou, Ping 7; Wang, Wantong 8; Yan, Junhua ; Wang, Gengxu 9; Ma, Keping5 ; Li, Shenggong 6; Du, Sheng 10; Han, Shijie 11; Ma, Youxin 12; Zhang, Deqiang ; Liu, Juxiu ; Liu, Shizhong ; Chu, Guowei ; Zhang, Qianmei ; Li, Yuelin ; Huang, Wenjuan ; Ren, Hai ; Lu, Xiankai ; Chen, Xiuzhi
	2019
发表期刊	NATIONAL SCIENCE REVIEW
ISSN	2095-5138
卷号	6 期号:4 页码:746-757
摘要	Soil organic carbon (SOC) plays critical roles in stabilizing atmospheric CO2 concentration, but the mechanistic controls on the amount and distribution of SOC on global scales are not well understood. In turn, this has hampered the ability to model global C budgets and to find measures to mitigate climate change. Here, based on the data from a large field survey campaign with 2600 plots across China's forest ecosystems and a global collection of published data from forested land, we find that a low litter carbon-to-nitrogen ratio (C/N) and high wetness index (P/PET, precipitation-to-potential-evapotranspiration ratio) are the two factors that promote SOC accumulation, with only minor contributions of litter quantity and soil texture. The field survey data demonstrated that high plant diversity decreased litter C/N and thus indirectly promoted SOC accumulation by increasing the litter quality. We conclude that any changes in plant-community composition, plant-species richness and environmental factors that can reduce the litter C/N ratio, or climatic changes that increase wetness index, may promote SOC accumulation. The study provides a guideline for modeling the carbon cycle of various ecosystem scales and formulates the principle for land-based actions for mitigating the rising atmospheric CO2 concentration.
关键词	litter carbon-to-nitrogen wetness index annual litterfall soil texture soil organic carbon
学科领域	Multidisciplinary Sciences
DOI	10.1093/nsr/nwz045
收录类别	SCI
语种	英语
WOS关键词	NET PRIMARY PRODUCTION ; TROPICAL FOREST ; SPECIES-DIVERSITY ; PLANT DIVERSITY ; NITROGEN ; DECOMPOSITION ; MATTER ; SEQUESTRATION ; MANIPULATION ; STORAGE
WOS研究方向	Science & Technology - Other Topics
WOS记录号	WOS:000489296400023
出版者	OXFORD UNIV PRESS
文献子类	Article
出版地	OXFORD
EISSN	2053-714X
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences (CAS) [XDA05050000] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [NSFC41430529] ; CAS Distinguished Research Fellow Program ; Swedish Research Council, FormasSwedish Research CouncilSwedish Research Council Formas [2015-468] ; Swedish Research Council, VRSwedish Research Council [2016-04146]
作者邮箱	gyzhou@scib.ac.cn
作品OA属性	Green Published
引用统计	被引频次：77[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/19889
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, South China Inst Bot, Guangzhou 510650, Guangdong, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Inst Ecol, Jiangsu Key Lab Agr Meteorol, Nanjing 210044, Jiangsu, Peoples R China 3.UPSaclay, UVSQ, CEA, CNRS,Inst Pierre Simon Laplace,Lab Sci Climat & E, F-91191 Gif Sur Yvette, France 4.Stockholm Univ, Dept Phys Geog, SE-10691 Stockholm, Sweden 5.Bolin Ctr Climate Res, SE-10691 Stockholm, Sweden 6.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China 7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 8.Guangdong Acad Sci, Guangzhou Inst Geog, Guangzhou 510070, Guangdong, Peoples R China 9.Henan Normal Univ, Coll Tourism, Xinxiang 453007, Henan, Peoples R China 10.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 11.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 12.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China 13.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Guoyi,Xu, Shan,Ciais, Philippe,et al. Climate and litter C/N ratio constrain soil organic carbon accumulation[J]. NATIONAL SCIENCE REVIEW,2019,6(4):746-757.
APA	Zhou, Guoyi.,Xu, Shan.,Ciais, Philippe.,Manzoni, Stefano.,Fang, Jingyun.,...&Chen, Xiuzhi.(2019).Climate and litter C/N ratio constrain soil organic carbon accumulation.NATIONAL SCIENCE REVIEW,6(4),746-757.
MLA	Zhou, Guoyi,et al."Climate and litter C/N ratio constrain soil organic carbon accumulation".NATIONAL SCIENCE REVIEW 6.4(2019):746-757.

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