Joint control of terrestrial gross primary productivity by plant phenology and physiology
Xia, JY; Niu, SL; Ciais, P; Janssens, IA; Chen, JQ; Ammann, C; Arain, A; Blanken, PD; Cescatti, A; Bonal, D; Buchmann, N; Curtis, PS; Chen, SP; Dong, JW; Flanagan, LB; Frankenberg, C; Georgiadis, T; Gough, CM; Hui, DF; Kiely, G; Li, JW; Lund, M; Magliulo, V; Marcolla, B; Merbold, L; Montagnani, L; Moors, EJ; Olesen, JE; Piao, SL; Raschi, A; Roupsard, O; Suyker, AE; Urbaniak, M; Vaccari, FP; Varlagin, A; Vesala, T; Wilkinson, M; Weng, E; Wohlfahrt, G; Yan, LM; Luo, YQ
2015
Source PublicationPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
Volume112Issue:9Pages:2788-2793
AbstractTerrestrial gross primary productivity (GPP) varies greatly over time and space. A better understanding of this variability is necessary for more accurate predictions of the future climate-carbon cycle feedback. Recent studies have suggested that variability in GPP is driven by a broad range of biotic and abiotic factors operating mainly through changes in vegetation phenology and physiological processes. However, it is still unclear how plant phenology and physiology can be integrated to explain the spatiotemporal variability of terrestrial GPP. Based on analyses of eddy-covariance and satellite-derived data, we decomposed annual terrestrial GPP into the length of the CO2 uptake period (CUP) and the seasonal maximal capacity of CO2 uptake (GPP(max)). The product of CUP and GPP(max) explained > 90% of the temporal GPP variability in most areas of North America during 2000-2010 and the spatial GPP variation among globally distributed eddy flux tower sites. It also explained GPP response to the European heatwave in 2003 (r(2) = 0.90) and GPP recovery after a fire disturbance in South Dakota (r(2) = 0.88). Additional analysis of the eddy-covariance flux data shows that the interbiome variation in annual GPP is better explained by that in GPP(max) than CUP. These findings indicate that terrestrial GPP is jointly controlled by ecosystem-level plant phenology and photosynthetic capacity, and greater understanding of GPP(max) and CUP responses to environmental and biological variations will, thus, improve predictions of GPP over time and space.
SubtypeJournal
Keywordecosystem carbon uptake growing season length photosynthetic capacity spatiotemporal variability climate extreme
Subject AreaScience & Technology - Other Topics
WOS Subject ExtendedMultidisciplinary Sciences
WOS KeywordCLIMATE-CHANGE ; CHLOROPHYLL FLUORESCENCE ; ECOSYSTEM PRODUCTIVITY ; VEGETATION PHENOLOGY ; STOMATAL CONDUCTANCE ; FOREST PHENOLOGY ; CARBON UPTAKE ; MODELS ; PHOTOSYNTHESIS ; VARIABILITY
Indexed BySCI
Language英语
WOS IDWOS:000350224900054
PublisherNATL ACAD SCIENCES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44440
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Xia, JY,Niu, SL,Ciais, P,et al. Joint control of terrestrial gross primary productivity by plant phenology and physiology[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2015,112(9):2788-2793.
APA Xia, JY.,Niu, SL.,Ciais, P.,Janssens, IA.,Chen, JQ.,...&Luo, YQ.(2015).Joint control of terrestrial gross primary productivity by plant phenology and physiology.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,112(9),2788-2793.
MLA Xia, JY,et al."Joint control of terrestrial gross primary productivity by plant phenology and physiology".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 112.9(2015):2788-2793.
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