The impact of alternative trait-scaling hypotheses for the maximum photosynthetic carboxylation rate (Vcmax ) on global gross primary production.
Identifieur interne : 000208 ( Main/Exploration ); précédent : 000207; suivant : 000209The impact of alternative trait-scaling hypotheses for the maximum photosynthetic carboxylation rate (Vcmax ) on global gross primary production.
Auteurs : Anthony P. Walker [États-Unis] ; Tristan Quaife [Royaume-Uni] ; Peter M. Van Bodegom [Pays-Bas] ; Martin G. De Kauwe [Australie] ; Trevor F. Keenan [États-Unis] ; Joanna Joiner [États-Unis] ; Mark R. Lomas [Royaume-Uni] ; Natasha Macbean [France] ; Chongang Xu [États-Unis] ; Xiaojuan Yang [États-Unis] ; F Ian Woodward [Royaume-Uni]Source :
- The New phytologist [ 1469-8137 ] ; 2017.
Abstract
The maximum photosynthetic carboxylation rate (Vcmax ) is an influential plant trait that has multiple scaling hypotheses, which is a source of uncertainty in predictive understanding of global gross primary production (GPP). Four trait-scaling hypotheses (plant functional type, nutrient limitation, environmental filtering, and plant plasticity) with nine specific implementations were used to predict global Vcmax distributions and their impact on global GPP in the Sheffield Dynamic Global Vegetation Model (SDGVM). Global GPP varied from 108.1 to 128.2 PgC yr(-1) , 65% of the range of a recent model intercomparison of global GPP. The variation in GPP propagated through to a 27% coefficient of variation in net biome productivity (NBP). All hypotheses produced global GPP that was highly correlated (r = 0.85-0.91) with three proxies of global GPP. Plant functional type-based nutrient limitation, underpinned by a core SDGVM hypothesis that plant nitrogen (N) status is inversely related to increasing costs of N acquisition with increasing soil carbon, adequately reproduced global GPP distributions. Further improvement could be achieved with accurate representation of water sensitivity and agriculture in SDGVM. Mismatch between environmental filtering (the most data-driven hypothesis) and GPP suggested that greater effort is needed understand Vcmax variation in the field, particularly in northern latitudes.
DOI: 10.1111/nph.14623
PubMed: 28643848
Affiliations:
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Walker</name><affiliation wicri:level="1"><nlm:affiliation>Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Science Institute, Oak Ridge, TN, 37830-6301, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Science Institute, Oak Ridge, TN, 37830-6301</wicri:regionArea><wicri:noRegion>37830-6301</wicri:noRegion></affiliation></author><author><name sortKey="Quaife, Tristan" sort="Quaife, Tristan" uniqKey="Quaife T" first="Tristan" last="Quaife">Tristan Quaife</name><affiliation wicri:level="1"><nlm:affiliation>Department of Meteorology, National Centre for Earth Observation, University of Reading, Reading, RG6 6BX, UK.</nlm:affiliation><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Meteorology, National Centre for Earth Observation, University of Reading, Reading, RG6 6BX</wicri:regionArea><wicri:noRegion>RG6 6BX</wicri:noRegion></affiliation></author><author><name sortKey="Van Bodegom, Peter M" sort="Van Bodegom, Peter M" uniqKey="Van Bodegom P" first="Peter M" last="Van Bodegom">Peter M. Van Bodegom</name><affiliation wicri:level="3"><nlm:affiliation>Institute of Environmental Sciences, Leiden University, 2333 CC, Leiden, the Netherlands.</nlm:affiliation><country xml:lang="fr" wicri:curation="lc">Pays-Bas</country><wicri:regionArea>Institute of Environmental Sciences, Leiden University, 2333 CC, Leiden</wicri:regionArea><placeName><settlement type="city">Leyde</settlement><region nuts="2" type="province">Hollande-Méridionale</region></placeName></affiliation></author><author><name sortKey="De Kauwe, Martin G" sort="De Kauwe, Martin G" uniqKey="De Kauwe M" first="Martin G" last="De Kauwe">Martin G. De Kauwe</name><affiliation wicri:level="1"><nlm:affiliation>Department of Biological Sciences, Macquarie University, Sydney, NSW, 2109, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Department of Biological Sciences, Macquarie University, Sydney, NSW, 2109</wicri:regionArea><wicri:noRegion>2109</wicri:noRegion></affiliation></author><author><name sortKey="Keenan, Trevor F" sort="Keenan, Trevor F" uniqKey="Keenan T" first="Trevor F" last="Keenan">Trevor F. Keenan</name><affiliation wicri:level="1"><nlm:affiliation>Earth Sciences Division, Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA, 94720, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Earth Sciences Division, Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA, 94720</wicri:regionArea><wicri:noRegion>94720</wicri:noRegion></affiliation></author><author><name sortKey="Joiner, Joanna" sort="Joiner, Joanna" uniqKey="Joiner J" first="Joanna" last="Joiner">Joanna Joiner</name><affiliation wicri:level="1"><nlm:affiliation>NASA Goddard Space Flight Center, Greenbelt, MD, 20771, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>NASA Goddard Space Flight Center, Greenbelt, MD, 20771</wicri:regionArea><wicri:noRegion>20771</wicri:noRegion></affiliation></author><author><name sortKey="Lomas, Mark R" sort="Lomas, Mark R" uniqKey="Lomas M" first="Mark R" last="Lomas">Mark R. Lomas</name><affiliation wicri:level="1"><nlm:affiliation>Department of Animal and Plant Sciences, University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, S10 2TN, UK.</nlm:affiliation><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Animal and Plant Sciences, University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, S10 2TN</wicri:regionArea><wicri:noRegion>S10 2TN</wicri:noRegion></affiliation></author><author><name sortKey="Macbean, Natasha" sort="Macbean, Natasha" uniqKey="Macbean N" first="Natasha" last="Macbean">Natasha Macbean</name><affiliation wicri:level="1"><nlm:affiliation>Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, F-91191, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, F-91191</wicri:regionArea><wicri:noRegion>91191</wicri:noRegion><wicri:noRegion>91191</wicri:noRegion></affiliation></author><author><name sortKey="Xu, Chongang" sort="Xu, Chongang" uniqKey="Xu C" first="Chongang" last="Xu">Chongang Xu</name><affiliation wicri:level="1"><nlm:affiliation>Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, 87544, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, 87544</wicri:regionArea><wicri:noRegion>87544</wicri:noRegion></affiliation></author><author><name sortKey="Yang, Xiaojuan" sort="Yang, Xiaojuan" uniqKey="Yang X" first="Xiaojuan" last="Yang">Xiaojuan Yang</name><affiliation wicri:level="1"><nlm:affiliation>Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Science Institute, Oak Ridge, TN, 37830-6301, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Science Institute, Oak Ridge, TN, 37830-6301</wicri:regionArea><wicri:noRegion>37830-6301</wicri:noRegion></affiliation></author><author><name sortKey="Woodward, F Ian" sort="Woodward, F Ian" uniqKey="Woodward F" first="F Ian" last="Woodward">F Ian Woodward</name><affiliation wicri:level="1"><nlm:affiliation>Department of Animal and Plant Sciences, University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, S10 2TN, UK.</nlm:affiliation><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Animal and Plant Sciences, University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, S10 2TN</wicri:regionArea><wicri:noRegion>S10 2TN</wicri:noRegion></affiliation></author></analytic><series><title level="j">The New phytologist</title><idno type="eISSN">1469-8137</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The maximum photosynthetic carboxylation rate (Vcmax ) is an influential plant trait that has multiple scaling hypotheses, which is a source of uncertainty in predictive understanding of global gross primary production (GPP). Four trait-scaling hypotheses (plant functional type, nutrient limitation, environmental filtering, and plant plasticity) with nine specific implementations were used to predict global Vcmax distributions and their impact on global GPP in the Sheffield Dynamic Global Vegetation Model (SDGVM). Global GPP varied from 108.1 to 128.2 PgC yr(-1) , 65% of the range of a recent model intercomparison of global GPP. The variation in GPP propagated through to a 27% coefficient of variation in net biome productivity (NBP). All hypotheses produced global GPP that was highly correlated (r = 0.85-0.91) with three proxies of global GPP. Plant functional type-based nutrient limitation, underpinned by a core SDGVM hypothesis that plant nitrogen (N) status is inversely related to increasing costs of N acquisition with increasing soil carbon, adequately reproduced global GPP distributions. Further improvement could be achieved with accurate representation of water sensitivity and agriculture in SDGVM. Mismatch between environmental filtering (the most data-driven hypothesis) and GPP suggested that greater effort is needed understand Vcmax variation in the field, particularly in northern latitudes.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li><li>Pays-Bas</li><li>Royaume-Uni</li><li>États-Unis</li></country><region><li>Hollande-Méridionale</li></region><settlement><li>Leyde</li></settlement></list><tree><country name="États-Unis"><noRegion><name sortKey="Walker, Anthony P" sort="Walker, Anthony P" uniqKey="Walker A" first="Anthony P" last="Walker">Anthony P. Walker</name></noRegion><name sortKey="Joiner, Joanna" sort="Joiner, Joanna" uniqKey="Joiner J" first="Joanna" last="Joiner">Joanna Joiner</name><name sortKey="Keenan, Trevor F" sort="Keenan, Trevor F" uniqKey="Keenan T" first="Trevor F" last="Keenan">Trevor F. Keenan</name><name sortKey="Xu, Chongang" sort="Xu, Chongang" uniqKey="Xu C" first="Chongang" last="Xu">Chongang Xu</name><name sortKey="Yang, Xiaojuan" sort="Yang, Xiaojuan" uniqKey="Yang X" first="Xiaojuan" last="Yang">Xiaojuan Yang</name></country><country name="Royaume-Uni"><noRegion><name sortKey="Quaife, Tristan" sort="Quaife, Tristan" uniqKey="Quaife T" first="Tristan" last="Quaife">Tristan Quaife</name></noRegion><name sortKey="Lomas, Mark R" sort="Lomas, Mark R" uniqKey="Lomas M" first="Mark R" last="Lomas">Mark R. Lomas</name><name sortKey="Woodward, F Ian" sort="Woodward, F Ian" uniqKey="Woodward F" first="F Ian" last="Woodward">F Ian Woodward</name></country><country name="Pays-Bas"><region name="Hollande-Méridionale"><name sortKey="Van Bodegom, Peter M" sort="Van Bodegom, Peter M" uniqKey="Van Bodegom P" first="Peter M" last="Van Bodegom">Peter M. Van Bodegom</name></region></country><country name="Australie"><noRegion><name sortKey="De Kauwe, Martin G" sort="De Kauwe, Martin G" uniqKey="De Kauwe M" first="Martin G" last="De Kauwe">Martin G. De Kauwe</name></noRegion></country><country name="France"><noRegion><name sortKey="Macbean, Natasha" sort="Macbean, Natasha" uniqKey="Macbean N" first="Natasha" last="Macbean">Natasha Macbean</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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