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Soil nutrient availability regulated global carbon use efficiency

文献类型：期刊论文

作者Zhang, Yangjian1,2,3; Huang, Ke1; Zhang, Tao4; Zhu, Juntao1; Di, Yangping1
刊名GLOBAL AND PLANETARY CHANGE
出版日期2019-02-01
卷号173页码:47-52
关键词Carbon use efficiency Ecosystem productivity Field measurement Nutrient Remote sensing modeling
ISSN号0921-8181
DOI10.1016/j.gloplacha.2018.12.001
通讯作者Zhang, Yangjian(zhangyj@igsnrr.ac.cn)
英文摘要The carbon use efficiency (CUE) is a core ecosystem parameter that determines the proportion of gross primary productivity (GPP) kept by an ecosystem after self-consumption. Its patterns along climates have been investigated to some extents. However, large uncertainty still exists, especially regarding its relationships with soil nutrients. The objective of this study was to evaluate the CUE variations along soil nutrient gradients by utilizing multi-sources of data for the global terrestrial ecosystem. The global terrestrial ecosystem CUE was calculated based on remote sensing modeled ecosystem productivity data, as well as in-situ observation data. The pattern analysis showed that global croplands and grasslands are distributed in nutrient-richer regions than forests. Along waning nutrients, GPP and net primary productivity (NPP) exhibit an overall increasing trend, while CUE declines. Within each biome, GPP and NPP decrease along enhanced nutrients for forests and grasslands, while CUE exhibits an opposite pattern. Based on worldwide collected field plot data, CUE also decreases along a weakened nutrient gradient. The strengthened ecosystem CUE pattern along enhanced nutrients as resulted from both model and field measurements data underscores the foremost significances of nutrients for ecosystem efficiency, also entails more comprehensive incorporations of nutrients in the future modeling studies.
WOS关键词RESPIRATION ; NITROGEN ; BIOMASS ; ALLOCATION ; TEMPERATE ; ECOSYSTEM ; FORESTS ; BOREAL ; GROSS ; PHOTOSYNTHESIS
资助项目strategic priority research program of the Chinese Academy of Sciences[XDA19070303] ; Key projects of Science and technology commissions of China[2016YFC0502001] ; International Partnership Program of Chinese Academy of Sciences[131C11KYSB20160061] ; NSFC[41725003] ; NSFC[41571195]
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000457512400005
出版者ELSEVIER SCIENCE BV
资助机构strategic priority research program of the Chinese Academy of Sciences ; Key projects of Science and technology commissions of China ; International Partnership Program of Chinese Academy of Sciences ; NSFC
源URL[http://ir.igsnrr.ac.cn/handle/311030/49973]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Yangjian
作者单位1.Chinese Acad Sci, Lhasa Stn, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Shenyang Agr Univ, Coll Agron, Shenyang 110866, Liaoning, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Yangjian,Huang, Ke,Zhang, Tao,et al. Soil nutrient availability regulated global carbon use efficiency[J]. GLOBAL AND PLANETARY CHANGE,2019,173:47-52.
APA Zhang, Yangjian,Huang, Ke,Zhang, Tao,Zhu, Juntao,&Di, Yangping.(2019).Soil nutrient availability regulated global carbon use efficiency.GLOBAL AND PLANETARY CHANGE,173,47-52.
MLA Zhang, Yangjian,et al."Soil nutrient availability regulated global carbon use efficiency".GLOBAL AND PLANETARY CHANGE 173(2019):47-52.

入库方式： OAI收割

来源：地理科学与资源研究所

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