Layman's Report: LIFE ADVICLIM (2014-2020) - Archive ouverte HAL Accéder directement au contenu
Rapport Année : 2020

Layman's Report: LIFE ADVICLIM (2014-2020)

Hervé Quénol
Meslay Marlène
  • Fonction : chef de projet

Résumé

Various studies on vine’s climate adaptability under different climate change scenarios show that we can expect major upheavals at global level, with the disappearance of some winegrowing regions by 2100. These studies, based specifically on climate simulation, propose fairly radical methods to adapt to climate change, such as the relocation of wine-growing regions. Existing studies on the impact of climate change cover large wine-growing regions, without taking into account the spatial variability of climate at finer scales. However, atmospheric parameters at the level of the boundary layer depend on surface conditions (surface roughness and type), and these can cause significant spatial variability in relatively small areas (from a few square metres to a few square kilometres). A wine’s specific features are determined by these fine-scale variations (e.g. slope, exposure, type of soil, etc.), and winemakers manage their estate and adapt to the climate at the plot scale, notably by agricultural practices (tillage, work on the vine, etc.). The spatial variability of climate (mainly temperature et bioclimatic indices based on sum of degree days) at local scale should therefore be taken into account when defining a rational climate change adaptation policy. In the LIFE-ADVICLIM programme, spatial climate variability at the local scale has been integrated into the outputs of regionalized climate change models. Fine scale agro-climatic modelling, combined with winegrowers' production strategies in a multi-agent system, has enabled the development of climate change adaptation scenarios based on spatial climate variability at the vineyard scale. An assessment of greenhouse gas emissions was then carried out to assess the carbon footprint for each adaptation scenario. This project aims to inform and assist winegrowers on climate change impacts, on rational adaptation scenarios and on greenhouse gas emissions related to their practices at the scale of their vineyard plots. These methodologies have been applied in several wine-growing pilot sites - Bordeaux and Val de Loire (France), Sussex (England), Rheingau (Germany), Cotnari (Romania) and Rioja (Spain) - representative of the climate diversity of European wine-growing areas, ranging from Mediterranean to oceanic to continental climates.
Fichier principal
Vignette du fichier
leyman_report_ADVICLIM.pdf (4.95 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04210606 , version 1 (19-09-2023)

Identifiants

  • HAL Id : hal-04210606 , version 1

Citer

Hervé Quénol, Meslay Marlène. Layman's Report: LIFE ADVICLIM (2014-2020). CNRS LETG. 2020. ⟨hal-04210606⟩
36 Consultations
6 Téléchargements

Partager

Gmail Facebook X LinkedIn More