Adaptation to climate change of the French wine industry: a systemic approach – Main outcomes of the project LACCAVE

Nathalie Ollat (1) , Hervé Quénol (2, 3) , Gérard Barbeau (4) , Cornelis van Leeuwen (1) , Philippe Darriet (5) , Inaki Garcia de Cortazar Atauri (5) , Benjamin Bois (6) , Hernan Ojeda (7) , Eric Duchêne (6) , Eric Lebon (8) , Philippe Vivin (1) , Laurent Torregrosa (9) , Jean-Marie Sablayrolles (10) , Geneviève Teil (11) , Philippe Lagacherie (12) , Eric Giraud-Heraud (13) , Patrick Aigrain (14) , Jean-Marc Touzard (15)

1 UMR EGFV - Ecophysiologie et Génomique Fonctionnelle de la Vigne
2 LEGT
3 CNRS - Centre National de la Recherche Scientifique
4 IRHS - Institut de Recherche en Horticulture et Semences
5 AGROCLIM - Agroclim
6 SVQV - Santé de la vigne et qualité du vin
7 PECH ROUGE - Unité expérimentale de Pech-Rouge
8 LEPSE - Écophysiologie des Plantes sous Stress environnementaux
9 UMR AGAP - Amélioration génétique et adaptation des plantes méditerranéennes et tropicales
10 SPO - Sciences Pour l'Oenologie
11 SADAPT - Sciences pour l'Action et le Développement : Activités, Produits, Territoires
12 UMR LISAH - Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème
13 OENO - Unité de Recherche Oenologie [Villenave d'Ornon]
14 Service Etude et Prospective
15 UMR Innovation - Innovation et Développement dans l'Agriculture et l'Alimentation

Taking into account the major economical role and specificities of the French wine industry, adaptation to climate change is a very challenging issue. In 2011, 23 research teams launched a systemic and multidisciplinary program to analyze the impacts from the vine to the region, to define adaptation strategies combining technical, spatial and organizational options and to evaluate the perception by the actors and consumers of climate change issues. Thermal variability was studied at local scale to develop high resolution atmospheric models which better simulate future climate trends. Impacts on growth/developmental conditions and vine responses were estimated from the calculation of eco-climatic indices and a combination of functional models. Genetic and physiological bases of grapevine adaptation to high temperature and drought were analyzed. Improving oenological and cultural practices as well as plant material innovation have been investigated as major technical adaptations. How these options could be implemented at the plot level was examined to elaborate decision tools. Multi-agent modelling was developed for this purpose. Surveys were performed to evaluate the perception of the main actors regarding climate change and their level of acceptability towards technical changes. Consumer acceptability of new types of wines was also investigated with an experimental economy approach. Finally a foresight exercise was conducted to design four potential adaptation strategies: conservative, innovative, nomad and liberal. Outcomes of this exercise are now used as a tool for wine industry members to develop their own strategic plan for adaptation.

Mots clés: thermal behavior; atmosphere model; climatic index

Mots clés: adaptation au changement climatique; comportement thermique; filière vitivinicole; stratégie d'adaptation; modèle atmosphérique; indice climatique; étude prospective; température elevee

Domaines: Milieux et Changements globaux

Nathalie Ollat, Hervé Quénol, Gérard Barbeau, Cornelis van Leeuwen, Philippe Darriet, et al.. Adaptation to climate change of the French wine industry: a systemic approach – Main outcomes of the project LACCAVE. E3S Web of Conferences, 2018, 50, pp.01020. ⟨10.1051/e3sconf/20185001020⟩. ⟨hal-01918073⟩