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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, Guoyi1,13; Xu, Shan13; Ciais, Philippe2; Manzoni, Stefano3,4; Fang, Jingyun5; Yu, Guirui6; Tang, Xuli13; Zhou, Ping7; Wang, Wantong8; Yan, Junhua13
刊名NATIONAL SCIENCE REVIEW
出版日期2019-07-01
卷号6期号:4页码:746-757
ISSN号2095-5138
关键词litter carbon-to-nitrogen wetness index annual litterfall soil texture soil organic carbon
DOI10.1093/nsr/nwz045
通讯作者Zhou, Guoyi(gyzhou@scib.ac.cn)
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.
WOS关键词NET PRIMARY PRODUCTION ; TROPICAL FOREST ; SPECIES-DIVERSITY ; PLANT DIVERSITY ; NITROGEN ; DECOMPOSITION ; MATTER ; SEQUESTRATION ; MANIPULATION ; STORAGE
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDA05050000] ; National Natural Science Foundation of China[NSFC41430529] ; CAS Distinguished Research Fellow Program ; Swedish Research Council, Formas[2015-468] ; Swedish Research Council, VR[2016-04146]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000489296400023
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; CAS Distinguished Research Fellow Program ; Swedish Research Council, Formas ; Swedish Research Council, VR
源URL[http://ir.igsnrr.ac.cn/handle/311030/129753]  
专题地理科学与资源研究所_生态系统研究网络观测与模拟重点实验室_CERN水分分中心
通讯作者Zhou, Guoyi
作者单位1.Nanjing Univ Informat Sci & Technol, Inst Ecol, Jiangsu Key Lab Agr Meteorol, Nanjing 210044, Jiangsu, Peoples R China
2.UPSaclay, UVSQ, CEA, CNRS,Inst Pierre Simon Laplace,Lab Sci Climat & E, F-91191 Gif Sur Yvette, France
3.Stockholm Univ, Dept Phys Geog, SE-10691 Stockholm, Sweden
4.Bolin Ctr Climate Res, SE-10691 Stockholm, Sweden
5.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China
6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
7.Guangdong Acad Sci, Guangzhou Inst Geog, Guangzhou 510070, Guangdong, Peoples R China
8.Henan Normal Univ, Coll Tourism, Xinxiang 453007, Henan, Peoples R China
9.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
10.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, 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.

入库方式： OAI收割

来源：地理科学与资源研究所

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