Modelagem de crescimento e produção de clones de eucalipto em um sistema agroflorestal

• Autor(a) principal: Salles, Thiago Taglialegna
• Data de Publicação: 2010
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/3034
• topic: Sistemas agroflorestais; Crescimento e produção; Modelagem; Agroforestry systems; Growth and yield; Modeling; CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::MANEJO FLORESTAL

This study was conducted with data collected from an agroforestry system located in the northwest of Minas Gerais, Brazil. The objectives of this work were to set a stand model and an individual tree model, both to estimate growth and yield of an agroforestry system. The seven best sampled cultivars for this purpose were selected for the study. For the stand modeling, the Clutter model was initially used in a non-reduced form and, based on the significance of the estimates, it was reduced to a specific form for each cultivar. The Clutter model showed to be efficient in estimating growth and yield of the studied agroforestry system and it was found that its adjusted unreduced form was better to represent growth trends than its standard reduced form. In terms of volume, the clone no. 8 presented a poor performance and clones no. 2 and 58 presented a better performance. For the individual tree modeling, an equation system, composed by a projection model for diameter, a model to estimate height and a model to estimate volume was used. Mortality was not modeled. The equation system showed to be efficient in projecting the diameter and the yield of the studied agroforestry system and mortality could be ignored in this process. For the studied system, the individual tree modeling can be used as an alternative to stand modeling.