Wildfires are intrinsic components of agro ecsystems functioning at global scale, affecting directly species composition, biomass, and the subsequent carbon stocks, and atmospheric composition. with 10 000 ha per year, fires impacts France mostly in the Mediterranean part of the country. It should be even more affected that climate changes will impact species composition, biomass amount and water status, and hydrothermal conditions leading to a high fire hazard. However, some keystone information required for fire impact studies on the carbon budget in agro ecosystems and atmospheric carbon emissions, including their future projections, remain as lacking for being used in regional scale terrestrial ecosystem models. Among the major technical and methodological issues, fine scale burned area assessment in France lacks systematic fire contours, as well as prescribed and agricultural burning. This issue can alter the assessment of fine scale fire hazard within complex landscapes, of the amount of fuel biomass affected, and of the post fire species resilience and carbon stock reconstruction according to topoclimates. Finally, future burned area projections hardly consider changes in species distribution and fire distribution with landscapes. This PhD project aims at solving these keystone issues to propose an integrated assessment of landscape sustainability including ecosystem services of carbon storage by considering forested ecosystem vulnerability to climate change and its consequences on fire hazard.