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

文献类型：期刊论文

作者Zhou, Guoyi3; Xu, Shan; Ciais, Philippe2; Manzoni, Stefano1,9; Fang, Jingyun10; Yu, Guirui11; Tang, Xuli; Zhou, Ping12; Wang, Wantong13; Yan, Junhua
刊名NATIONAL SCIENCE REVIEW
出版日期2019
卷号6期号:4页码:746-757
关键词litter carbon-to-nitrogen wetness index annual litterfall soil texture soil organic carbon
ISSN号2095-5138
DOI10.1093/nsr/nwz045
文献子类Article
英文摘要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.
学科主题Multidisciplinary Sciences
出版地OXFORD
电子版国际标准刊号2053-714X
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
语种英语
WOS记录号WOS:000489296400023
出版者OXFORD UNIV PRESS
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]
源URL[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.UPSaclay, UVSQ, CEA, CNRS,Inst Pierre Simon Laplace,Lab Sci Climat & E, F-91191 Gif Sur Yvette, France
2.Nanjing Univ Informat Sci & Technol, Inst Ecol, Jiangsu Key Lab Agr Meteorol, Nanjing 210044, Jiangsu, Peoples R China
3.Chinese Acad Sci, South China Inst Bot, Guangzhou 510650, Guangdong, Peoples R China
4.Henan Normal Univ, Coll Tourism, Xinxiang 453007, Henan, Peoples R China
5.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
6.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
7.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China
8.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China
9.Stockholm Univ, Dept Phys Geog, SE-10691 Stockholm, Sweden
10.Bolin Ctr Climate Res, SE-10691 Stockholm, Sweden
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.

入库方式： OAI收割

来源：植物研究所

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