Before the unvoidable effects of a monovalent and mining type of forest exploitation in Southern Québec, at least until recently, it becomes urgent to explore and manage more humanly and naturally the forestry and agro-forestry hinterland surrounding resources regions. This paper suggests a much more rational use of forestry biomass, by the privileged way of regional strategic planification. First explained in its theoretical dimension, this explanation is made operational by an alternative scenario for the year 2010, using some 20 ways of processing raw material of the forestry biomass. This scenario is then examined into its major components, up to the operational structure, forecast for this rime period.