Reduction of structural impacts and distinction of photosynthetic pathways in a global estimation of GPP from space-borne solar-induced chlorophyll fluorescence
文献类型：期刊论文
| 作者 | Zhang, Zhaoying4; Zhang, Yongguang3,4; Porcar-Castell, Albert; Joiner, Joanna6; Guanter, Luis7; Yang, Xi8; Migliavacca, Mirco1; Ju, Weimin3,4; Sun, Zhigang2,12; Chen, Shiping13 |
| 刊名 | REMOTE SENSING OF ENVIRONMENT
 |
| 出版日期 | 2020 |
| 卷号 | 240 |
| ISSN号 | 0034-4257 |
| 关键词 | Photosynthesis Photosynthetic pathway Chlorophyll fluorescence Canopy structure Spectral invariant theory |
| DOI | 10.1016/j.rse.2020.111722 |
| 文献子类 | Article |
| 英文摘要 | Quantifying global photosynthesis remains a challenge due to a lack of accurate remote sensing proxies. Solar-induced chlorophyll fluorescence (SIF) has been shown to be a good indicator of photosynthetic activity across various spatial scales. However, a global and spatially challenging estimate of terrestrial gross primary production (GPP) based on satellite SIF remains unresolved due to the confounding effects of species-specific physical and physiological traits and external factors, such as canopy structure or photosynthetic pathway (C-3 or C-4). Here we analyze an ensemble of far-red SIF data from OCO-2 satellite and ground observations at multiple sites, using the spectral invariant theory to reduce the effects of canopy structure and to retrieve a structure-corrected total canopy SIF emission (SIFtotal). We find that the relationships between observed canopy-leaving SIF and ecosystem GPP vary significantly among biomes. In contrast, the relationships between SIFtotal and GPP converge around two unique models, one for C-3 and one for C-4 plants. We show that the two single empirical models can be used to globally scale satellite SIF observations to terrestrial GPP. We obtain an independent estimate of global terrestrial GPP of 129.56 +/- 6.54 PgC/year for the 2015-2017 period, which is consistent with the state-of-the-art data- and process-oriented models. The new GPP product shows improved sensitivity to previously undetected 'hotspots' of productivity, being able to resolve the double-peak in GPP due to rotational cropping systems. We suggest that the direct scheme to estimate GPP presented here, which is based on satellite SIF, may open up new possibilities to resolve the dynamics of global terrestrial GPP across space and time. |
| 学科主题 | Environmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology |
| 电子版国际标准刊号 | 1879-0704 |
| 出版地 | NEW YORK |
| WOS关键词 | SUN-INDUCED FLUORESCENCE ; GROSS PRIMARY PRODUCTION ; TERRESTRIAL CARBON-CYCLE ; NET ECOSYSTEM EXCHANGE ; CANOPY PHOTOSYNTHESIS ; FEEDBACK MECHANISM ; ENERGY FLUXES ; CO2 UPTAKE ; DIOXIDE ; MODEL |
| WOS研究方向 | Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE INC |
| WOS记录号 | WOS:000523955300033 |
| 资助机构 | National Key Research and Development Program of China [2019YFA0606601] ; NSFCNational Natural Science Foundation of China (NSFC) [41761134082] ; DFGGerman Research Foundation (DFG)European Commission [41761134082] ; General Program of National Science Foundation of China [41671421] ; Academy of FinlandAcademy of FinlandEuropean Commission [288039] ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grantSKA South Africa [721995] ; Alexander von Humboldt foundation through the Max Planck Research PrizeAlexander von Humboldt Foundation ; NASA through the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program ; Innovative and Practical Program of Graduate Student in Jiangsu Province [SJKY190037] ; CDIAC ; ICOS Ecosystem Thematic Center ; OzFlux office ; ChinaFlux office ; AsiaFlux office ; USDA ARSUnited States Department of Agriculture (USDA)USDA Agricultural Research Service ; NSFNational Science Foundation (NSF) [EAR 1331872] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/21828]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Univ Virginia, Dept Environm Sci, Charlottesville, VA 22904 USA 2.Max Planck Inst Biogeochem, Hans Knoell Str 10, D-07745 Jena, Germany 3.Nanjing Univ, Sch Geog & Ocean Sci, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Key Lab Land Satellite Remote Sensing Applicat,Mi, Nanjing 210023, Jiangsu, Peoples R China 4.Nanjing Univ, Int Inst Earth Syst Sci, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Nanjing, Peoples R China 5.Collaborat Innovat Ctr Novel Software Technol & I, Nanjing 210023, Peoples R China 6.Univ Helsinki, Inst Atmospher & Earth Syst Res Forest Sci, Opt Photosynth Lab, Helsinki, Finland 7.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA 8.Univ Politecn Valencia, Ctr Tecnol Fis, Cami Vera S-N, E-46022 Valencia, Spain 9.Univ Technol Sydney, Sch Life Sci, Terr Ecosyst Res Network, Broadway, NSW 2007, Australia 10.UPMC Univ Paris 06, Univ Paris Saclay, Sorbonne Univ, LMD IPSL,CNRS,ENS,PSL Res Univ,Ecole Polytech, F-91128 Palaiseau, France |
| 推荐引用方式 GB/T 7714 | Zhang, Zhaoying,Zhang, Yongguang,Porcar-Castell, Albert,et al. Reduction of structural impacts and distinction of photosynthetic pathways in a global estimation of GPP from space-borne solar-induced chlorophyll fluorescence[J]. REMOTE SENSING OF ENVIRONMENT,2020,240. |
| APA | Zhang, Zhaoying.,Zhang, Yongguang.,Porcar-Castell, Albert.,Joiner, Joanna.,Guanter, Luis.,...&Goulas, Yves.(2020).Reduction of structural impacts and distinction of photosynthetic pathways in a global estimation of GPP from space-borne solar-induced chlorophyll fluorescence.REMOTE SENSING OF ENVIRONMENT,240. |
| MLA | Zhang, Zhaoying,et al."Reduction of structural impacts and distinction of photosynthetic pathways in a global estimation of GPP from space-borne solar-induced chlorophyll fluorescence".REMOTE SENSING OF ENVIRONMENT 240(2020). |
入库方式： OAI收割
来源：植物研究所
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