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Journal Articles New Phytologist Year : 2015

Global variability in leaf respiration in relation to climate, plant functional types and leaf traits

1 ANU - Australian National University
2 HIE - Hawkesbury Institute for the Environment [Richmond]
3 UMN - University of Minnesota [Twin Cities]
4 Carnegie Institution for Science
5 EEF - Ecologie et Ecophysiologie Forestières [devient SILVA en 2018]
6 MPI-BGC - Max-Planck-Institut für Biogeochemie
7 CSIRO Land and Water
8 JCU - James Cook University
9 PUCP - Pontificia Universidad Católica del Perú = Pontifical Catholic University of Peru
10 USP - Universidade de São Paulo = University of São Paulo
11 Purdue University [West Lafayette]
12 NKUA - National and Kapodistrian University of Athens
13 Department of Geosciences [Princeton]
14 School of Geography [Leeds]
15 LDEO - Lamont-Doherty Earth Observatory
16 School of Geosciences [Edinburgh]
17 UNH - University of New Hampshire
18 CEH - Centre for Ecology and Hydrology [Wallingford]
19 School of Plant Biology, Faculty of Natural and Agricultural Sciences, The University of Western Australia
20 Imperial College London
21 University of Waikato [Hamilton]
22 Institute of Biological Problems of the Cryolithozone
23 SoGE - School of Geography and the Environment [Oxford]
24 Macquarie University
25 University of Exeter
26 EEB - Department of Ecology and Evolutionary Biology [University of Toronto]
27 WUR - Wageningen University and Research [Wageningen]
28 University of Canterbury [Christchurch]
29 CSU - Colorado State University [Fort Collins]
30 UF|Biology - Department of Biology [Gainesville]
31 Smithsonian Tropical Research Institute
32 UR - University of Regina
33 CSIC - Consejo Superior de Investigaciones Cientificas [España] = Spanish National Research Council [Spain]
34 University of Peradeniya
35 Leipzig University / Universität Leipzig
36 CAS - Chinese Academy of Sciences [Beijing]
Lucas A. Cernusak
John R. Evans
  • Function : Author
  • PersonId : 1011884
Oliver L. Phillips
Stephen Sitch
Christian Wirth
  • Function : Author

Abstract

Leaf dark respiration (R-dark) is an important yet poorly quantified component of the global carbon cycle. Given this, we analyzed a new global database of R-dark and associated leaf traits. Data for 899 species were compiled from 100 sites (from the Arctic to the tropics). Several woody and nonwoody plant functional types (PFTs) were represented. Mixed-effects models were used to disentangle sources of variation in R-dark. Area-based R-dark at the prevailing average daily growth temperature (T) of each siteincreased only twofold from the Arctic to the tropics, despite a 20 degrees C increase in growing T (8-28 degrees C). By contrast, R-dark at a standard T (25 degrees C, R-dark(25)) was threefold higher in the Arctic than in the tropics, and twofold higher at arid than at mesic sites. Species and PFTs at cold sites exhibited higher R-dark(25) at a given photosynthetic capacity (V-cmax(25)) or leaf nitrogen concentration ([N]) than species at warmer sites. R-dark(25) values at any given V-cmax(25) or [N] were higher in herbs than in woody plants. The results highlight variation in R-dark among species and across global gradients in T and aridity. In addition to their ecological significance, the results provide a framework for improving representation of R-dark in terrestrial biosphere models (TBMs) and associated land-surface components of Earth system models (ESMs).

Dates and versions

hal-01556923 , version 1 (05-07-2017)

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Owen K. Atkin, Keith J. Bloomfield, Peter B. Reich, Mark G. Tjoelker, Gregory P. Asner, et al.. Global variability in leaf respiration in relation to climate, plant functional types and leaf traits. New Phytologist, 2015, 206 (2), pp.614 - 636. ⟨10.1111/nph.13253⟩. ⟨hal-01556923⟩
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