0000000001230900
AUTHOR
M. Ouvrié
Variabilité des extrêmes thermiques et impacts sur la viticulture : l’évolution du risque de gel de printemps en Bourgogne Franche-Comté.
Publication de la Chaire UNESCO "Culture et Traditions du Vin" de l'Université de Bourgogne et du Centre Georges Chevrier UMR CNRS/uB 7366.; National audience
Analyse spatiale de l’évolution du risque de gel sur la vigne en Bourgogne-Franche-Comté
The warming undergone by the global climate does not necessarily entail a decrease in frost risk in agriculture/viticulture. Since both plant and climate are likely to evolve under changing environmental conditions, plant vulnerability and the meteorological phenomenon (frost) should be considered jointly when assessing the evolution of frost risk. This study aims at documenting the spatial and temporal frost risk changes in the winegrowing subregions of Bourgogne-Franche-Comté. The period between budburst and the last spring frost occurrence date has been considered as the most vulnerable for grapevines. We considered a plant as being stressed by a frost event when the temperature drops be…