气候变化领域集成服务门户(CCPortal): Global photosynthetic capacity is optimized to the environment

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DOI	10.1111/ele.13210
	Global photosynthetic capacity is optimized to the environment
	Smith N.G.; Keenan T.F.; Colin Prentice I.; Wang H.; Wright I.J.; Niinemets Ü.; Crous K.Y.; Domingues T.F.; Guerrieri R.; Yoko Ishida F.; Kattge J.; Kruger E.L.; Maire V.; Rogers A.; Serbin S.P.; Tarvainen L.; Togashi H.F.; Townsend P.A.; Wang M.; Weerasinghe L.K.; Zhou S.-X.
发表日期	2019
ISSN	1461023X
卷号	22 期号:3
英文摘要	Earth system models (ESMs) use photosynthetic capacity, indexed by the maximum Rubisco carboxylation rate (V cmax ), to simulate carbon assimilation and typically rely on empirical estimates, including an assumed dependence on leaf nitrogen determined from soil fertility. In contrast, new theory, based on biochemical coordination and co-optimization of carboxylation and water costs for photosynthesis, suggests that optimal V cmax can be predicted from climate alone, irrespective of soil fertility. Here, we develop this theory and find it captures 64% of observed variability in a global, field-measured V cmax dataset for C 3 plants. Soil fertility indices explained substantially less variation (32%). These results indicate that environmentally regulated biophysical constraints and light availability are the first-order drivers of global photosynthetic capacity. Through acclimation and adaptation, plants efficiently utilize resources at the leaf level, thus maximizing potential resource use for growth and reproduction. Our theory offers a robust strategy for dynamically predicting photosynthetic capacity in ESMs. © 2019 John Wiley & Sons Ltd/CNRS
英文关键词	Carbon cycle; Carboxylation; coordination; ecophysiology; electron transport; Jmax; light availability; nitrogen availability; temperature; V cmax
语种	英语
scopus关键词	carbon dioxide; nitrogen; ribulosebisphosphate carboxylase; acclimatization; adaptation; photosynthesis; plant leaf; Acclimatization; Adaptation, Physiological; Carbon Dioxide; Nitrogen; Photosynthesis; Plant Leaves; Ribulose-Bisphosphate Carboxylase
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/121137
作者单位	Department of Biological Sciences, Texas Tech University, Lubbock, TX, United States; Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Department of Environmental Science, Policy and Management, UC Berkeley, Berkeley, CA, United States; AXA Chair of Biosphere and Climate Impacts, Department of Life Sciences, Imperial College London, London, United Kingdom; College of Forestry, Northwest A&F University, Yangling, China; Department of Biological Sciences, Macquarie UniversityNSW 2109, Australia; Department of Earth System Science, Tsinghua University, Beijing, China; Department of Plant Physiology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia; Hawkesbury Institute for the Environment, Western Sydney University, Penrith, Australia; Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto - University of São Paulo, São Paulo, Brazil; Center for Ecological Rese...
推荐引用方式 GB/T 7714	Smith N.G.,Keenan T.F.,Colin Prentice I.,et al. Global photosynthetic capacity is optimized to the environment[J],2019,22(3).
APA	Smith N.G..,Keenan T.F..,Colin Prentice I..,Wang H..,Wright I.J..,...&Zhou S.-X..(2019).Global photosynthetic capacity is optimized to the environment.Ecology Letters,22(3).
MLA	Smith N.G.,et al."Global photosynthetic capacity is optimized to the environment".Ecology Letters 22.3(2019).