The energy, forestry, agriculture and mining sectors represent major challenges for the territory, both economic, social and environmental. They are based on different sectors of activity between which interactions are possible. Today the question of spatial planning arises in order to allow the future development of each of these sectors. In particular, the use of man-made areas, such as old abandoned agricultural land or post-exploitation mining sites, could be one of the solutions to the problem of land availability while limiting the growing land hold on the natural forest. Thus, this area, which is not exploited today, could be upgraded thanks to the planting of biomass energy and timber that would meet the needs of the renewable energy and forestry sectors or the installation of agro-forestry systems for the needs of the agricultural sector. However, the question arises as to the production capacity of these lands, which have undergone an alteration in their agronomic value due to their intensive exploitation. The project therefore aims to study the technical and economic feasibility of energy, forestry and agricultural plantations on these anthropised areas.