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Global photosynthet...
Global photosynthetic capacity is optimized to the environment
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Smith, N. G. (author)
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Keenan, T. F. (author)
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Colin Prentice, I. (author)
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Wang, H. (author)
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Wright, I. J. (author)
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Niinemets, U. (author)
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Crous, K. Y. (author)
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Domingues, T. F. (author)
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Guerrieri, R. (author)
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Ishida, F. Y. (author)
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Kattge, J. (author)
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Kruger, E. L. (author)
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Maire, V. (author)
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Rogers, A. (author)
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Serbin, S. P. (author)
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- Tarvainen, Lasse, 1977 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences
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Togashi, H. F. (author)
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Townsend, P. A. (author)
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Wang, M. (author)
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Weerasinghe, L. K. (author)
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Zhou, S. X. (author)
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(creator_code:org_t)
- 2019-01-04
- 2019
- English.
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In: Ecology Letters. - : Wiley. - 1461-023X .- 1461-0248. ; 22:3, s. 506-517
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Abstract
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- 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.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Keyword
- Carbon cycle
- Carboxylation
- coordination
- ecophysiology
- electron transport
- Jmax
- light availability
- leaf nitrogen
- temperature response
- thermal-acclimation
- biochemical-model
- co2 assimilation
- quantum yield
- v-cmax
- traits
- water
- conductance
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Smith, N. G.
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Keenan, T. F.
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Colin Prentice, ...
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Wang, H.
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Wright, I. J.
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Niinemets, U.
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show more...
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Crous, K. Y.
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Domingues, T. F.
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Guerrieri, R.
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Ishida, F. Y.
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Kattge, J.
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Kruger, E. L.
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Maire, V.
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Rogers, A.
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Serbin, S. P.
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Tarvainen, Lasse ...
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Togashi, H. F.
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Townsend, P. A.
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Wang, M.
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Weerasinghe, L. ...
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Zhou, S. X.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Environmental Sc ...
- Articles in the publication
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Ecology Letters
- By the university
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University of Gothenburg