Regulação da produção de floresta de eucalipto submetida a desbaste e destinada a multiprodutos

• Autor(a) principal: Santos, Fabiano Lourenço dos
• Data de Publicação: 2008
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/2990
• topic: Programação dinâmica; Programação linear; Manejo florestal; Regulação; Dynamic programming; Linear programming; Forest management; Forest regulation; CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::MANEJO FLORESTAL

The objective of this study was to develop a methodology to define an optimal thinning determination and production of wood multiproduct of Eucalypt hybrid aiming at the exploitation of assortments and a regulation strategy. The data use came back from a permanent sample plot with a mean area of 2,600 m² each in eucalypt hybrid land in Copener/BahiaPulp land located in the municipality of Alagoinhas, northeast Bahia, Brazil. They were collected given dendrométricos between 1.995 and 2.007. They were applied four treatments to the experimental area being, reduction of 20%, 35%, 50% of the basal area and still other treatment with removal of 35% of the basal area and pruning up to 6,0 meters. It was made the diameter distribution and adjustment modeling of pfd Weibull, to enable the projection of future distributions. It was developed a recurrence relation of a model of Dynamic Programming, which I had the diameter distribution as state and thinning regime or cut final accomplishment moment. The recurrence relation implementation enabled thinning optimum regime determination for different projects, after thinning simulations with the data projected by the diameter distribution model. The 20 thinning best prescriptions for project were selected. These constituted the prescriptions set used in the Model I of forest regulation. With the regulation model were defined the areas that should receive the adequate prescriptions, of form to meet the demand for wooden supply for energy and sawmill. PD's optimum solution necessarily was not the solution prioritized by the regulation model, once, occurs ages initial structure influence of the population, what can be easily visualized in year 0 of the planning horizon. After the regulation model application was defined a more balanced structure of ages. Starting from three projects with three initial ages, it changed the forest for a represented structure by 11 age classes. The optimization different techniques use simultaneously allowed the definition of the optimum thinning regime and the beginning of the population regulation.