Project leaders: F. Vinatier & J-S. Bailly (LISAH), J. Demarty (HSM), J-M. Limousin (CEFE)
Partners: ABSys, CEFE, G-EAU, HSM, Innovation, ITAP, LISAH
Description: Implementation of biophysical modelling approaches to describe the energy, water and carbon balances of agro-ecosystems, the interaction mechanisms between ecosystems and agro-ecosystems, and the impact of adaptation measures in order to study and anticipate the effects of aridification in the medium term on Mediterranean landscapes
Objective: The consortium wishes to mobilise observation and modelling to study in detail the indicators impacting the main agroecosystems, the effectiveness of adaptation or mitigation measures and the interactions between ecosystems and agroecosystems as a lever for mitigating the impact of aridification. These aspects will be addressed through:
- Regular assessments, supported by field surveys, of the issues related to aridification of agroecosystems: this phase will notably prefigure the outline of the Workshop Site in terms of scientific actors and non-academic partners.
- The establishment of spatially explicit, fine-resolution climate scenarios (present and future), multi-faceted drought indicators derived from modelling (empirical or process) or remote sensing (VARI, EVI, NDVI, SMI, FMC), and relevant field measurements to study and anticipate the effects of aridification in the short and medium term on agroecosystems.
- Simulations based on spatially explicit ecohydrological models, which are the only tools capable of projecting the effects of aridification and changes in practices from a quantitative standpoint.
These tools must be capable of integrating the topo-climatic and edaphic heterogeneities of the environment, the variability of cover and species and their water use strategies, as well as the lateral surface and deep flows governing exchanges between the different elements of the landscape.
Long-term scientific issue: this project also aims to embrace other major issues and to include new partners, notably in the following areas: i) contamination of terrestrial and aquatic waters and ecosystems by agricultural inputs, ii) territorial dynamics: urbanisation, multiplicity of agricultural models, and iii) study of the effects of hydroclimatic extremes on agro- and ecosystems.