L'aménagement de l'espace agricole : le remembrement en zone bocagère

In farming the choice of crop and the quality and quantity of the production depend on the climate and on the agronomic characteristics of the unit of space-time used. They also depend on the distribution in time and the intensity of the flow of goods and services applied to it. Hence the problem posed by country planning is that of making the structures fit the flux, taking into account the possible markets, the techniques used and the constraints imposed by the environment and the protection of the landscape. The analysis of the flows observed in a planning zone shows that the process studied is Markovian. Taking into account the diversity of the crops and their succession in time, the situation can be expressed by saying that the probability of the immobilization of the circulating capital is that of the time the production cycles last. For each category the minimum number of pieces of land necessary for the total financing possibilities to cover the expenses is calculated. By combining the different categories and by retaining only the combination that maximizes farm income in the zone, the pieces of land to be improved, those to be left as they are and those to be developed are determined. An overall plan can be considered as complete when the last element of the proposed restructuring does not increase the income of the zone, or would lead to a modification of a group of pieces of land whose transformation is out of the question for pedological, agronomic or legal reasons, or because of the protection of the landscape. As the sub-group these pieces of land make up has no significance except as part of the system to which it belongs, the restructuring operation comes to an end when this sub-group is concerned.