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Photosynthetic capacity dominates the interannual variation of annual gross primary productivity in the Northern Hemisphere

文献类型：期刊论文

作者Zhang, Weikang1,2; Yu, Guirui1,2,11; Chen, Zhi1,2,11; Zhu, Xianjin3; Han, Lang1,4; Liu, Zhaogang1,2; Lin, Yong1,2; Han, Shijie5; Sha, Liqing6; Wang, Huimin1,2
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2022-11-25
卷号849页码:11
关键词Annual gross primary productivity Interannual variation Maximum daily GPP Photosynthesis per leaf area Environmental variables
ISSN号0048-9697
DOI10.1016/j.scitotenv.2022.157856
通讯作者Yu, Guirui(yugr@igsnrr.ac.cn) ; Chen, Zhi(chenz@igsnrr.ac.cn)
英文摘要Annual gross primary productivity (AGPP) of terrestrial ecosystems is the largest carbon flux component in ecosys-tems; however, it's unclear whether photosynthetic capacity or phenology dominates interannual variation of AGPP, and a better understanding of this could contribute to estimation of carbon sinks and their interactions with climate change. In this study, observed GPP data of 494 site-years from 39 eddy covariance sites in Northern Hemi-sphere were used to investigate mechanisms of interannual variation of AGPP. This study first decomposed AGPP into three seasonal dynamic attribute parameters (growing season length (CUP), maximum daily GPP (GPPmax), and the ratio of mean daily GPP to GPPmax (alpha GPP)), and then decomposed AGPP into mean leaf area index (LAIm) and annual photosynthetic capacity per leaf area (AGPPlm). Furthermore, GPPmax was decomposed into leaf area index of DOYmax (the day when GPPmax appeared) (LAImax) and photosynthesis per leaf area of DOYmax (GPPlmax). Relative contributions of parameters to AGPP and GPPmax were then calculated. Finally, environmental variables of DOYmax were extracted to analyze factors influencing interannual variation of GPPlmax. Trends of AGPP in 39 ecosys-tems varied from -65.23 to 53.05 g C m-2 yr-2, with the mean value of 6.32 g C m-2 yr-2. Photosynthetic capacity (GPPmaxand AGPPlm), not CUP or LAI, was the main factor dominating interannual variation of AGPP. GPPlmax deter-mined the interannual variation of GPPmax, and temperature, water, and radiation conditions of DOYmax affected the interannual variation of GPPlmax. This study used the cascade relationship of "environmental variables-GPPlmax-GPPmax-AGPP" to explain the mechanism of interannual variation of AGPP, which can provide new ideas for the AGPP estimation based on seasonal dynamic of GPP.
WOS关键词CARBON-DIOXIDE EXCHANGE ; LEAF-AREA INDEX ; PLANT PHENOLOGY ; INNER-MONGOLIA ; VARIABILITY ; TEMPERATE ; CLIMATE ; NET ; FOREST ; CO2
资助项目National Natural Science Foundation of China[42141005] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2022050] ; Young Talents Project of Institute of Geographic Sciences and Natural Resources Research[2021RC004] ; Science and technology basic investigation program of China[2019FY101302] ; Swiss National Science Foundation project ICOS-CH Phase 3[20F120_198227]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000880123700004
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Young Talents Project of Institute of Geographic Sciences and Natural Resources Research ; Science and technology basic investigation program of China ; Swiss National Science Foundation project ICOS-CH Phase 3
源URL[http://ir.igsnrr.ac.cn/handle/311030/186884]  
专题中国科学院地理科学与资源研究所
通讯作者Yu, Guirui; Chen, Zhi
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Shenyang Agr Univ, Coll Agron, Shenyang 100161, Peoples R China
4.Tianjin Univ, Sch Earth Syst Sci, Tianjin 300072, Peoples R China
5.Henan Univ, Sch Life Sci, Kaifeng 475004, Peoples R China
6.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Menglun 666303, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
8.Chinese Acad Sci, Key Lab Vegetat Restorat & Management Degraded Eco, South China Bot Garden, Guangzhou 510650, Peoples R China
9.Swiss Fed Inst Technol, Dept Environm Syst Sci, Zurich, Switzerland
10.Univ Munster, Inst Landscape Ecol, Munster, Germany
推荐引用方式
GB/T 7714		 Zhang, Weikang,Yu, Guirui,Chen, Zhi,et al. Photosynthetic capacity dominates the interannual variation of annual gross primary productivity in the Northern Hemisphere[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,849:11.
APA Zhang, Weikang.,Yu, Guirui.,Chen, Zhi.,Zhu, Xianjin.,Han, Lang.,...&Gharun, Mana.(2022).Photosynthetic capacity dominates the interannual variation of annual gross primary productivity in the Northern Hemisphere.SCIENCE OF THE TOTAL ENVIRONMENT,849,11.
MLA Zhang, Weikang,et al."Photosynthetic capacity dominates the interannual variation of annual gross primary productivity in the Northern Hemisphere".SCIENCE OF THE TOTAL ENVIRONMENT 849(2022):11.

入库方式： OAI收割

来源：地理科学与资源研究所

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