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Évolution retrospective du risque gélif hivernal en climat tempéré suite au réchauffement climatique

Abstract : An abrupt warming shift of the surface temperature around 1987/1988 has been documented for the western part of Europe. The arising of two consecutive surface temperature climates offers opportunity to assess the warming impacts over the Bourgogne Franche-Comté area. Few studies focus on the winter warming effects on vegetation and crops. Recent studies suggest however a paradoxical increase of frost damage in a warming climate. Based on the combination of a Meteo-France climate dataset with a winter frost stress model calibrated for pea, we assessed the winter frost damage evolution along from 1958-2015. Even if frost stress is decreasing at a whole after the temperature shift, subtle and opposite trends of the number and intensity of frost events are showed. The signifi cant increase on the frost stress events partially supports the paradox of climate warming. The large frost stress intensity decrease displays a more intuitive evolution following the warming. The plant acclimation mechanism with the structure of the climate hazards are keys components in the assessment of winter warming impacts evolution. This work highlights the breeding and crop strategy for winter pea for adaptation purpose in the current and projected context of climate change.
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Submitted on : Tuesday, July 16, 2019 - 1:52:46 PM
Last modification on : Tuesday, November 22, 2022 - 2:26:16 PM


  • HAL Id : hal-02185069, version 1


Thierry Castel, Christophe Lecomte, Yves Richard, Isabelle I. Lejeune-Henaut, Annabelle Larmure. Évolution retrospective du risque gélif hivernal en climat tempéré suite au réchauffement climatique. Bourgogne-Franche-Comté Nature, 2019, 29, pp.325-334. ⟨hal-02185069⟩



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