Build and evaluate climate change adaptation with a parsimonious integrated agro-hydrological model over a catchment in northeastern France

Considering the emergency to adapt agriculture to climate change, it seems essential to develop generic tools to build and evaluate potential solutions. We combine here a prospective based on stakeholders’ interviews and an integrated agro-hydrological model to evaluate the impacts of scenarios on the Seille catchment in 2050. The prospective and stakeholders’ interviews aim at understanding agriculture and water management drivers on the modelled catchment and designing appropriate inputs for future scenarios modelling. The model simulates flows at a daily time step with GR rainfall-runoff models, and simulates daily irrigation demand thanks the to single Kc method of FAO, allowing estimating hydrological and agronomic impacts of climate change and scenarios. The integration of the two models is made thanks to the airGRiwrm package. Depending of the research advancement, results of simulations in a climate change context and conclusions about climate change impacts for designed scenarios will be presented.