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Optimal stomatal behaviour around the world

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Lin_et_al_NCC_merged_all[2034].docxAccepted version991.8 kBMicrosoft WordView/Open
Title: Optimal stomatal behaviour around the world
Authors: Lin, Y-S
Medlyn, BE
Duursma, RA
Prentice, IC
Wang, H
Baig, S
Eamus, D
Resco de Dios, V
Mitchell, P
Ellsworth, DS
Op de Beeck, M
Wallin, G
Uddling, J
Tarvainen, L
Linderson, M-L
Cernusak, LA
Nippert, JB
Ocheltree, T
Tissue, DT
Martin-St Paul, NK
Rogers, A
Warren, JM
De Angelis, P
Hikosaka, K
Han, Q
Onoda, Y
Gimeno, TE
Barton, CVM
Bennie, J
Bonal, D
Bosc, A
Loew, M
Macinins-Ng, C
Rey, A
Rowland, L
Setterfield, SA
Tausz-Posch, S
Zaragoza-Castells, J
Broadmeadow, MSJ
Drake, JE
Freeman, M
Ghannoum, O
Hutley, LB
Kelly, JW
Kikuzawa, K
Kolari, P
Koyama, K
Limousin, J-M
Meir, P
Lola da Costa, AC
Mikkelsen, TN
Salinas, N
Sun, W
Wingate, L
Item Type: Journal Article
Abstract: Stomatal conductance (gs) is a key land-surface attribute as it links transpiration, the dominant component of global land evapotranspiration, and photosynthesis, the driving force of the global carbon cycle. Despite the pivotal role of gs in predictions of global water and carbon cycle changes, a global-scale database and an associated globally applicable model of gs that allow predictions of stomatal behaviour are lacking. Here, we present a database of globally distributed gs obtained in the field for a wide range of plant functional types (PFTs) and biomes. We find that stomatal behaviour differs among PFTs according to their marginal carbon cost of water use, as predicted by the theory underpinning the optimal stomatal model1 and the leaf and wood economics spectrum2,3. We also demonstrate a global relationship with climate. These findings provide a robust theoretical framework for understanding and predicting the behaviour of gs across biomes and across PFTs that can be applied to regional, continental and global-scale modelling of ecosystem productivity, energy balance and ecohydrological processes in a future changing climate.
Issue Date: 1-May-2015
Date of Acceptance: 16-Jan-2015
URI: http://hdl.handle.net/10044/1/70519
DOI: https://doi.org/10.1038/nclimate2550
ISSN: 1758-678X
Publisher: Nature Research
Start Page: 459
End Page: 464
Journal / Book Title: Nature Climate Change
Volume: 5
Issue: 5
Copyright Statement: © 205 Springer-Verlag. The final publication is available at Springer via https://doi.org/10.1038/nclimate2550.
Sponsor/Funder: AXA Research Fund
Funder's Grant Number: AXA Chair Programme in Biosphere and Climate Impacts
Keywords: Science & Technology
Life Sciences & Biomedicine
Physical Sciences
Environmental Sciences
Environmental Studies
Meteorology & Atmospheric Sciences
Environmental Sciences & Ecology
MODEL
CONVERGENCE
LEAF
Science & Technology
Life Sciences & Biomedicine
Physical Sciences
Environmental Sciences
Environmental Studies
Meteorology & Atmospheric Sciences
Environmental Sciences & Ecology
MODEL
CONVERGENCE
LEAF
Publication Status: Published
Online Publication Date: 2015-03-02
Appears in Collections:Department of Life Sciences