Nitrogen controls plant canopy light-use efficiency in temperate and boreal ecosystems
Optimum daily light-use efficiency (LUE) and normalized canopy photosynthesis (GEE*) rate, a proxy for LUE, have been derived from eddy covariance CO2 flux measurements obtained at a range of sites located in the mid to high latitudes. These two variables were analyzed with respect to environmental...
Published in: | Journal of Geophysical Research: Biogeosciences |
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ftunivnantes:oai:HAL:ird-00392436v1 2023-05-15T14:58:43+02:00 Nitrogen controls plant canopy light-use efficiency in temperate and boreal ecosystems Kergoat, L. Lafont, Sébastien Arneth, A. Le Dantec, Valérie Saugier, Bernard Centre d'études spatiales de la biosphère (CESBIO) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Forest Research Agency, Farnham, UK Forest Research Agency Department of Physical Geography and Ecosystems Analysis Geobiosphere Science Centre Ecologie Systématique et Evolution (ESE) Université Paris-Sud - Paris 11 (UP11)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS) 2008 https://hal.ird.fr/ird-00392436 https://hal.ird.fr/ird-00392436/document https://hal.ird.fr/ird-00392436/file/2007jgResearchKergoat.pdf https://doi.org/10.1029/2007JG000676 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2007JG000676 ird-00392436 https://hal.ird.fr/ird-00392436 https://hal.ird.fr/ird-00392436/document https://hal.ird.fr/ird-00392436/file/2007jgResearchKergoat.pdf doi:10.1029/2007JG000676 info:eu-repo/semantics/OpenAccess ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.ird.fr/ird-00392436 Journal of Geophysical Research, 2008, 113 (G04017), pp.1-19. ⟨10.1029/2007JG000676⟩ [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems info:eu-repo/semantics/article Journal articles 2008 ftunivnantes https://doi.org/10.1029/2007JG000676 2023-02-22T01:05:30Z Optimum daily light-use efficiency (LUE) and normalized canopy photosynthesis (GEE*) rate, a proxy for LUE, have been derived from eddy covariance CO2 flux measurements obtained at a range of sites located in the mid to high latitudes. These two variables were analyzed with respect to environmental conditions, plant functional types (PFT) and leaf nitrogen concentration, in an attempt to characterize their variability and their potential drivers. LUE averaged 0.0182 mol/mol with a coefficient of variation of 37% (42% for GEE*). Foliar nitrogen N of the dominant plant species was found to explain 71% of LUE (n = 26) and 62% of GEE* (n = 44) variance, across all PFTs and sites. Mean Annual Temperature, MAT, explained 27% of LUE variance, and the two factors (MAT and N) combined in a simple linear model explain 80% of LUE and 76% GEE* variance. These results showed that plant canopies in the temperate, boreal and arctic zones fit into a general scheme closely related to the one, which had been established for plant leaves worldwide. The N-MAT-LUE relationships offer perspectives for LUE-based models of terrestrial photosynthesis based on remote sensing. On a continental scale, the decrease of LUE from the temperate to the arctic zone found in the data derived from flux measurements is not in line with LUE resulting from inversion of atmospheric CO2. Article in Journal/Newspaper Arctic Université de Nantes: HAL-UNIV-NANTES Arctic Journal of Geophysical Research: Biogeosciences 113 G4 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
spellingShingle |
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Kergoat, L. Lafont, Sébastien Arneth, A. Le Dantec, Valérie Saugier, Bernard Nitrogen controls plant canopy light-use efficiency in temperate and boreal ecosystems |
topic_facet |
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
description |
Optimum daily light-use efficiency (LUE) and normalized canopy photosynthesis (GEE*) rate, a proxy for LUE, have been derived from eddy covariance CO2 flux measurements obtained at a range of sites located in the mid to high latitudes. These two variables were analyzed with respect to environmental conditions, plant functional types (PFT) and leaf nitrogen concentration, in an attempt to characterize their variability and their potential drivers. LUE averaged 0.0182 mol/mol with a coefficient of variation of 37% (42% for GEE*). Foliar nitrogen N of the dominant plant species was found to explain 71% of LUE (n = 26) and 62% of GEE* (n = 44) variance, across all PFTs and sites. Mean Annual Temperature, MAT, explained 27% of LUE variance, and the two factors (MAT and N) combined in a simple linear model explain 80% of LUE and 76% GEE* variance. These results showed that plant canopies in the temperate, boreal and arctic zones fit into a general scheme closely related to the one, which had been established for plant leaves worldwide. The N-MAT-LUE relationships offer perspectives for LUE-based models of terrestrial photosynthesis based on remote sensing. On a continental scale, the decrease of LUE from the temperate to the arctic zone found in the data derived from flux measurements is not in line with LUE resulting from inversion of atmospheric CO2. |
author2 |
Centre d'études spatiales de la biosphère (CESBIO) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Forest Research Agency, Farnham, UK Forest Research Agency Department of Physical Geography and Ecosystems Analysis Geobiosphere Science Centre Ecologie Systématique et Evolution (ESE) Université Paris-Sud - Paris 11 (UP11)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Kergoat, L. Lafont, Sébastien Arneth, A. Le Dantec, Valérie Saugier, Bernard |
author_facet |
Kergoat, L. Lafont, Sébastien Arneth, A. Le Dantec, Valérie Saugier, Bernard |
author_sort |
Kergoat, L. |
title |
Nitrogen controls plant canopy light-use efficiency in temperate and boreal ecosystems |
title_short |
Nitrogen controls plant canopy light-use efficiency in temperate and boreal ecosystems |
title_full |
Nitrogen controls plant canopy light-use efficiency in temperate and boreal ecosystems |
title_fullStr |
Nitrogen controls plant canopy light-use efficiency in temperate and boreal ecosystems |
title_full_unstemmed |
Nitrogen controls plant canopy light-use efficiency in temperate and boreal ecosystems |
title_sort |
nitrogen controls plant canopy light-use efficiency in temperate and boreal ecosystems |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.ird.fr/ird-00392436 https://hal.ird.fr/ird-00392436/document https://hal.ird.fr/ird-00392436/file/2007jgResearchKergoat.pdf https://doi.org/10.1029/2007JG000676 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.ird.fr/ird-00392436 Journal of Geophysical Research, 2008, 113 (G04017), pp.1-19. ⟨10.1029/2007JG000676⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2007JG000676 ird-00392436 https://hal.ird.fr/ird-00392436 https://hal.ird.fr/ird-00392436/document https://hal.ird.fr/ird-00392436/file/2007jgResearchKergoat.pdf doi:10.1029/2007JG000676 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2007JG000676 |
container_title |
Journal of Geophysical Research: Biogeosciences |
container_volume |
113 |
container_issue |
G4 |
_version_ |
1766330849111834624 |