Importance of vegetation feedbacks in doubled-CO2 climate experiments
Abstract. The rising atmospheric concentration of carbon dioxide resulting from the burning of fossil fuels and deforestation is likely to provoke significant climate perturbations, while having far-reaching consequences for the terrestrial biosphere. Some plants could maintain the same intake of CO...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.455.3294 2023-05-15T18:18:23+02:00 Importance of vegetation feedbacks in doubled-CO2 climate experiments H. Douville S. Planton J. -f. Royer D. B. Stephenson S. Tyteca L. Kergoat S. Lafont R. A. Betts The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.455.3294 http://kergoat.laurent.free.fr/douvilleJGR00.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.455.3294 http://kergoat.laurent.free.fr/douvilleJGR00.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://kergoat.laurent.free.fr/douvilleJGR00.pdf text ftciteseerx 2016-01-08T06:09:08Z Abstract. The rising atmospheric concentration of carbon dioxide resulting from the burning of fossil fuels and deforestation is likely to provoke significant climate perturbations, while having far-reaching consequences for the terrestrial biosphere. Some plants could maintain the same intake of CO2 for photosynthesis by reducing their stomatal openings, thus limiting the transpiration and providing a positive feedback to the projected surface warming. Other plants could benefit from the higher CO2 level and the warmer climate to increase their productivity, which would on the contrary promote the transpiration. The relevance of these feedbacks has been investigated with the Météo-France atmospheric general circulation model. The model has been run at the T31 spectral truncation with 19 vertical levels and is forced with sea surface temperature and sea ice anomalies provided by a transient simulation performed with the Hadley Centre coupled ocean-atmosphere model. Besides a reference doubled-CO2 experiment with no modification of the vegetation properties, two other experiments have been performed to explore the impact of changes in the physiology (stomatal resistance) and structure (leaf area index) of plants. Globally and annually averaged, the radiative impact of the CO2 Text Sea ice Unknown |
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description |
Abstract. The rising atmospheric concentration of carbon dioxide resulting from the burning of fossil fuels and deforestation is likely to provoke significant climate perturbations, while having far-reaching consequences for the terrestrial biosphere. Some plants could maintain the same intake of CO2 for photosynthesis by reducing their stomatal openings, thus limiting the transpiration and providing a positive feedback to the projected surface warming. Other plants could benefit from the higher CO2 level and the warmer climate to increase their productivity, which would on the contrary promote the transpiration. The relevance of these feedbacks has been investigated with the Météo-France atmospheric general circulation model. The model has been run at the T31 spectral truncation with 19 vertical levels and is forced with sea surface temperature and sea ice anomalies provided by a transient simulation performed with the Hadley Centre coupled ocean-atmosphere model. Besides a reference doubled-CO2 experiment with no modification of the vegetation properties, two other experiments have been performed to explore the impact of changes in the physiology (stomatal resistance) and structure (leaf area index) of plants. Globally and annually averaged, the radiative impact of the CO2 |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
H. Douville S. Planton J. -f. Royer D. B. Stephenson S. Tyteca L. Kergoat S. Lafont R. A. Betts |
spellingShingle |
H. Douville S. Planton J. -f. Royer D. B. Stephenson S. Tyteca L. Kergoat S. Lafont R. A. Betts Importance of vegetation feedbacks in doubled-CO2 climate experiments |
author_facet |
H. Douville S. Planton J. -f. Royer D. B. Stephenson S. Tyteca L. Kergoat S. Lafont R. A. Betts |
author_sort |
H. Douville |
title |
Importance of vegetation feedbacks in doubled-CO2 climate experiments |
title_short |
Importance of vegetation feedbacks in doubled-CO2 climate experiments |
title_full |
Importance of vegetation feedbacks in doubled-CO2 climate experiments |
title_fullStr |
Importance of vegetation feedbacks in doubled-CO2 climate experiments |
title_full_unstemmed |
Importance of vegetation feedbacks in doubled-CO2 climate experiments |
title_sort |
importance of vegetation feedbacks in doubled-co2 climate experiments |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.455.3294 http://kergoat.laurent.free.fr/douvilleJGR00.pdf |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
http://kergoat.laurent.free.fr/douvilleJGR00.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.455.3294 http://kergoat.laurent.free.fr/douvilleJGR00.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766194934212198400 |