Avaliação da densidade média da madeira do povoamento de Eucalyptus spp de empresas do setor madereiro do estado de São Paulo

• Autor(a) principal: Bruder, Edson Marcelo
• Data de Publicação: 2010
• Outros Autores: Katz, Ieoschua, Rezende, Marcos Antonio de [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://www.fatecbt.edu.br/ojs/index.php/RevTec/article/view/40; http://hdl.handle.net/11449/140808
• topic: Basic density; Density; Eucalyptus; Forest sector; Management cost; Densidad; Densidad básica; Eucalyptus; Gestión de costos; Sector maderero; Densidade; Densidade básica; Eucalyptus; Gestão de custos; Setor madeireiro

The Brazil has the largest tropical forest of planet. The forestry in State of São Paulo is prevalent in plantation of genus Eucalyptus spp. used for a variable finalities. This species is more planted in short-cicle forest in Brazil and the world. The increase of wood consumption in the last decade, due to industrial demand in the forest sector in development and due for expansive international demand forest products. The density have an expressive evidence how one of the major indices to evaluate the wood quality for companies. The optimization of techniques to determinate the density is very important. The objective of this study was identify the representive tree average size and density in technical optimization to determine the density for sample analysis acquisition. This study used six trees of the genus Eucalyptus spp. the samples was cut in disc form the every one meter, until the commercial height (hc). The density of samples was determinate by direct method to 0% of the humidity. The software Origin Professional Version 7.0 used for adjustment of equations of density variations. The results showed that the Ideal of Sampling Position (PIA) was determined in 0,46hc position. The study concluded the viability of significant number reduction from samples trees and the acquisition of a single disc between 40 and 50 of commercial height. The productivity demonstrated evidence of a reliable index of investment and cost less than 1% of the net.