According to global and local assessment, several "territorial alimentary project" (named PAT in France) are going experimented. Diagnosis have been done, and in our case cultural surfaces have been quantified for reaching goals defined by the actors implied in the project. With our tool GeoPAT, we try to simulate a set of spatially explicit scenarii compatibles with these agregated goals and the current farming situation. To achieve that, we have developed a multi-objectives sequential optimisation algorithm.