Ecophysiological modeling of the climate imprint on photosynthesis and carbon allocation to the tree stem in the North American boreal forest
International audience A better understanding of the coupling between photosynthesis and carbon allocation in the boreal forest, with implicated environmental factors and mechanistic rules, is crucial to accurately predict boreal forest carbon stocks and fluxes, which are significant components of t...
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ftccsdartic:oai:HAL:hal-01515932v1 2023-05-15T18:30:55+02:00 Ecophysiological modeling of the climate imprint on photosynthesis and carbon allocation to the tree stem in the North American boreal forest GENNARETTI, Fabio Gea-Izquierdo, Guillermo Boucher, Etienne Berninger, Frank Arseneault, Dominique Guiot, Joel Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA) Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria Université du Québec à Montréal = University of Québec in Montréal (UQAM) University of Helsinki Université du Québec à Rimouski (UQAR) 2017 https://hal.archives-ouvertes.fr/hal-01515932 https://doi.org/10.5194/bg-2017-51-SC1 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-2017-51-SC1 hal-01515932 https://hal.archives-ouvertes.fr/hal-01515932 doi:10.5194/bg-2017-51-SC1 ISSN: 1810-6277 EISSN: 1810-6285 Biogeosciences Discussions https://hal.archives-ouvertes.fr/hal-01515932 Biogeosciences Discussions, European Geosciences Union, 2017, pp.1 - 26. ⟨10.5194/bg-2017-51-SC1⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2017 ftccsdartic https://doi.org/10.5194/bg-2017-51-SC1 2021-11-07T03:54:22Z International audience A better understanding of the coupling between photosynthesis and carbon allocation in the boreal forest, with implicated environmental factors and mechanistic rules, is crucial to accurately predict boreal forest carbon stocks and fluxes, which are significant components of the global carbon budget. Here we adapted the MAIDEN ecophysiological forest model to better consider important processes for boreal tree species, such as non-linear acclimation of photosynthesis to 15 temperature changes, canopy development as a function of previous year climate variables influencing bud formation, and temperature dependence of carbon partition in summer. We tested these modifications in the eastern Canadian taiga using black spruce (Picea mariana (Mill.) B.S.P.) gross primary production and ring-width data. MAIDEN explains 90% of the observed daily gross primary production variability, 73% of the full spectrum of the annual ring width variability and 20-30% of its high frequency component. The positive effect on stem growth due to climate warming in the last decades is well 20 captured by the model. In addition, we illustrate the improvement achieved with each introduced model adaptation and compare the model results with those of linear response functions. This shows that MAIDEN simulates robust relationships with the most important climate variables (those detected by classical response-function analysis), and is a powerful tool for understanding how environmental factors interact with black spruce ecophysiology to influence present-day and future boreal forest carbon fluxes. 25 Article in Journal/Newspaper taiga Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences GENNARETTI, Fabio Gea-Izquierdo, Guillermo Boucher, Etienne Berninger, Frank Arseneault, Dominique Guiot, Joel Ecophysiological modeling of the climate imprint on photosynthesis and carbon allocation to the tree stem in the North American boreal forest |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience A better understanding of the coupling between photosynthesis and carbon allocation in the boreal forest, with implicated environmental factors and mechanistic rules, is crucial to accurately predict boreal forest carbon stocks and fluxes, which are significant components of the global carbon budget. Here we adapted the MAIDEN ecophysiological forest model to better consider important processes for boreal tree species, such as non-linear acclimation of photosynthesis to 15 temperature changes, canopy development as a function of previous year climate variables influencing bud formation, and temperature dependence of carbon partition in summer. We tested these modifications in the eastern Canadian taiga using black spruce (Picea mariana (Mill.) B.S.P.) gross primary production and ring-width data. MAIDEN explains 90% of the observed daily gross primary production variability, 73% of the full spectrum of the annual ring width variability and 20-30% of its high frequency component. The positive effect on stem growth due to climate warming in the last decades is well 20 captured by the model. In addition, we illustrate the improvement achieved with each introduced model adaptation and compare the model results with those of linear response functions. This shows that MAIDEN simulates robust relationships with the most important climate variables (those detected by classical response-function analysis), and is a powerful tool for understanding how environmental factors interact with black spruce ecophysiology to influence present-day and future boreal forest carbon fluxes. 25 |
author2 |
Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA) Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria Université du Québec à Montréal = University of Québec in Montréal (UQAM) University of Helsinki Université du Québec à Rimouski (UQAR) |
format |
Article in Journal/Newspaper |
author |
GENNARETTI, Fabio Gea-Izquierdo, Guillermo Boucher, Etienne Berninger, Frank Arseneault, Dominique Guiot, Joel |
author_facet |
GENNARETTI, Fabio Gea-Izquierdo, Guillermo Boucher, Etienne Berninger, Frank Arseneault, Dominique Guiot, Joel |
author_sort |
GENNARETTI, Fabio |
title |
Ecophysiological modeling of the climate imprint on photosynthesis and carbon allocation to the tree stem in the North American boreal forest |
title_short |
Ecophysiological modeling of the climate imprint on photosynthesis and carbon allocation to the tree stem in the North American boreal forest |
title_full |
Ecophysiological modeling of the climate imprint on photosynthesis and carbon allocation to the tree stem in the North American boreal forest |
title_fullStr |
Ecophysiological modeling of the climate imprint on photosynthesis and carbon allocation to the tree stem in the North American boreal forest |
title_full_unstemmed |
Ecophysiological modeling of the climate imprint on photosynthesis and carbon allocation to the tree stem in the North American boreal forest |
title_sort |
ecophysiological modeling of the climate imprint on photosynthesis and carbon allocation to the tree stem in the north american boreal forest |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.archives-ouvertes.fr/hal-01515932 https://doi.org/10.5194/bg-2017-51-SC1 |
genre |
taiga |
genre_facet |
taiga |
op_source |
ISSN: 1810-6277 EISSN: 1810-6285 Biogeosciences Discussions https://hal.archives-ouvertes.fr/hal-01515932 Biogeosciences Discussions, European Geosciences Union, 2017, pp.1 - 26. ⟨10.5194/bg-2017-51-SC1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-2017-51-SC1 hal-01515932 https://hal.archives-ouvertes.fr/hal-01515932 doi:10.5194/bg-2017-51-SC1 |
op_doi |
https://doi.org/10.5194/bg-2017-51-SC1 |
_version_ |
1766214543047917568 |