Anatomia e secagem da madeira de quatro espécies de um sistema agroflorestal

Abstract

The drying of wood is an important process to confer quality to forest products and is influenced by the anatomical characteristics intrinsic to the different species used. Thus, the present study aimed to evaluate the influence of anatomy on the drying of wood of Parapiptadenia rigida, Peltophorum dubium, Eucalyptus urophylla x Eucalyptus grandis and Schizolobium parahyba (Vell.) Blake from an agroforestry system. For this purpose, after the selection and felling of three trees of each species, with 9 years of age, a log was sectioned in the region of the diameter at 1.30 m from the ground (DAP) and specimens were made with dimensions of 5 x 5 x 15 cm, for drying analysis and, with 1.5 x 1.5 x 2.0 cm, for anatomical characteristics. The wood anatomy influences the drying of the four forest species. The anatomical parameters that most influence the drying are the fiber diameter, fiber lumen diameter, the larger the values, the greater the drying intensity. Thus, the analysis of wood fiber anatomy should be considered in wood drying programs.