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RESUMEN En este estudio se propone y resuelve un modelo de programacion entera mixta para la planificacion tactica de la cosecha forestal. Se considera, el reemplazo de productos, la diferenciacion de rodales y canchas de trozado. Las instancias usadas disponen de hasta: 60 rodales, 25 canchas de acopio, 10 clientes, 8 periodos de planificacion y 20 reglas de trozado. Considerando, hasta 260000 variables, 4800 enteras y 10000 restricciones y usando el software Cplex . En todos los casos, se obtiene el optimo y se verifica que a mayor numero de reglas de trozado, el beneficio alcanzado tambien es mayor. Palabras clave: Cosecha forestal, optimizacion, planificacion forestal agregada, programacion lineal entera mixta. ABSTRACT In this study, we propose and solve a mix Integer Programming model for the tactical planning in forest harvesting. The following elements we considered the replacement of products, the stand differentiation places of bucking. The instances used have: 60 stands, 25 stockyards, 10 customers, 8 planning periods and 20 bucking rules, with up to 260000 variables, 48000 integers and 10000 constraints. We used

Planificación agregada en la cosecha forestal: Un modelo de programacion matemática y solucion