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Revista mexicana de ciencias forestales
versão impressa ISSN 2007-1132
Resumo
VIGNOTE PENA, Santiago; MARTINEZ-ROJAS, Isaac e VILLASANTE PLAGARO, Antonio. Forestry as the first operation of wood transformation. Rev. mex. de cienc. forestales [online]. 2011, vol.2, n.4, pp.5-12. ISSN 2007-1132.
Forestry offers an array of possibilities to adequate the quality of the wood to its use, not only because of the different ways of improving its physical and mechanical properties, which is also possible in a small scale, but for reducing its anomalies and alterations and if needed to increase or enhance them. This paper shows the different factors and properties that are usually more involved in defining wood quality and the influence that forestry has in each of these factors is analyzed. Among forestry operations, the management of the shifts (rotation period) is one of the most viable options to improve wood quality, to increase its yield on transformation processes, to reduce per cent of juvenile wood, knots, pith, growth tension and to increase the relation between sapwood and heartwood. All these factors affect their quality for its diverse uses; even the increment of the risk of ring and heart shakes in some species can cause wood deterioration. In addition, the effects of tree cover or forest cover are also analyzed through the plantation spacing, thinning and clear cuts, fertilization and the sanitary cuts.
Palavras-chave : Wood quality; competition; tree cover; fertilization; sanitation; forestry.