A Hierarchical Timber Allocation Model to Analyze Sustainable Forest Management Decisions
Mots-clés :
hierarchical planning, timber allocation, multi-criteria, sustainable forest management, optimizationRésumé
A two-level Hierarchical Timber Allocation model was developed that iteratively negotiates medium-term (sustainable forest management) decisions with operational (lumber production) plans. At the medium-term level, a multi-criteria timber allocation model optimally allocates forest land units, called stewardship units, to different forest products companies based on five sustainability criteria: profit, employment, wildlife habitat, recreation, and visual quality. At the operational level, a sawmilling model maximizes the profits resulting from optimally converting the timber allocated by the medium-term level into lumber products. An iterative algorithm was developed in which the decisions generated by the two hierarchical levels reach a mutually beneficial solution. The model was demonstrated in two cases and conclusions were presented about future development. MCFNS 2(2):117-134.
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