Management Science · 1976 · 77 citations · 3 references
Natural ResourcesForestryNatural Resource EconomicsForest EconomicsForest ManagementSilvicultureForest Land ManagementForest PlanningForest Road ConstructionForest Road MaintenanceForest TransportationTimber Supply AnalysisForest Management PlanningForest Revenue ModelingForest Road ManagementForest Road PlanningInteger Linear ProgrammingMixed-integer Linear ProgrammingMixed-integer ProgrammingTimber Supply Modeling
This paper deals with the problem of integrating the analysis of timber management, forest road building and maintenance, and transporting logs. The aim of such analysis is to provide tools for the decisionmaking process in long-range forest planning. A mixed integer linear programming model is developed to maximize discounted revenues from the sale of timber net of road construction and maintenance, timber management, and transport costs. The main complexity of this model, which precludes a straightforward formulation, arises from the need to gain access to an area before it can be managed. Artificial variables and relations are introduced to avoid an unmanageably large number of 0-1 integer variables.
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Stuart E. Dreyfus, Robert A. Wagner · Networks · 1971 · 693 citations
The shortest and the K‐shortest routes as assignment problems
Andrés Weintraub · Networks · 1973 · 13 citations