Convergence in phosphorus constraints to photosynthesis in forests around the world

被引：0

作者：

David S. Ellsworth

Kristine Y. Crous

Martin G. De Kauwe

Lore T. Verryckt

Daniel Goll

Sönke Zaehle

Keith J. Bloomfield

Philippe Ciais

Lucas A. Cernusak

Tomas F. Domingues

Mirindi Eric Dusenge

Sabrina Garcia

Rossella Guerrieri

F. Yoko Ishida

Ivan A. Janssens

Tanaka Kenzo

Tomoaki Ichie

Belinda E. Medlyn

Patrick Meir

Richard J. Norby

Peter B. Reich

Lucy Rowland

Louis S. Santiago

Yan Sun

Johan Uddling

Anthony P. Walker

K. W. Lasantha K. Weerasinghe

Martine J. van de Weg

Yun-Bing Zhang

Jiao-Lin Zhang

Ian J. Wright

机构：

[1] Western Sydney University,Hawkesbury Institute for the Environment

[2] University of Bristol,School of Biological Sciences

[3] University of New South Wales,ARC Centre of Excellence for Climate Extremes

[4] University of Antwerp,Department of Biology

[5] CEA/CNRS/Université de Versailles Saint-Quentin-en-Yvelines/ Université de Paris Saclay,Laboratoire des Sciences du Climat et de l’Environnement (LSCE), Institut Pierre Simon Laplace

[6] Universität Augsburg,Lehrstuhl für Physische Geographie mit Schwerpunkt Klimaforschung

[7] Max Planck Institute for Biogeochemistry,Department of Life Sciences

[8] Imperial College,Centre for Tropical Environmental and Sustainability Science

[9] College of Science and Engineering,Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Depto. de Biologia

[10] James Cook University,Department of Biological and Environmental Sciences

[11] Universidade de São Paulo-Ribeirão Preto,College of Life and Environmental Sciences

[12] University of Gothenburg,Department of Agricultural and Food Sciences

[13] University of Exeter,Faculty of Agriculture and Marine Science

[14] National Institute of Amazonian Research (INPA),Research School of Biology

[15] University of Bologna,School of Geosciences

[16] Japan International Research Centre for Agricultural Sciences,Department of Ecology and Evolutionary Biology

[17] Kochi University,Department of Forest Resources

[18] The Australian National University,Institute for Global Change Biology, and School for the Environment and Sustainability

[19] Edinburgh University,Department of Botany and Plant Sciences

[20] University of Tennessee,College of Marine Life Sciences

[21] University of Minnesota,Environmental Sciences Division and Climate Change Science Institute

[22] University of Michigan,Department of Crop Science, Faculty of Agriculture

[23] University of California,CAS Key Laboratory of Tropical Forest Ecology

[24] Riverside,Department of Biological Sciences

[25] Ocean University of China,undefined

[26] Oak Ridge National Laboratory,undefined

[27] University of Peradeniya,undefined

[28] Xishuangbanna Tropical Botanical Garden,undefined

[29] Chinese Academy of Sciences,undefined

[30] Macquarie University,undefined

来源：

Nature Communications | / 13卷

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摘要：

Tropical forests take up more carbon (C) from the atmosphere per annum by photosynthesis than any other type of vegetation. Phosphorus (P) limitations to C uptake are paramount for tropical and subtropical forests around the globe. Yet the generality of photosynthesis-P relationships underlying these limitations are in question, and hence are not represented well in terrestrial biosphere models. Here we demonstrate the dependence of photosynthesis and underlying processes on both leaf N and P concentrations. The regulation of photosynthetic capacity by P was similar across four continents. Implementing P constraints in the ORCHIDEE-CNP model, gross photosynthesis was reduced by 36% across the tropics and subtropics relative to traditional N constraints and unlimiting leaf P. Our results provide a quantitative relationship for the P dependence for photosynthesis for the front-end of global terrestrial C models that is consistent with canopy leaf measurements.

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