Abstract
The growth stresses of trees can be evaluated by means of the analysis of the end splitting on green and dry boards. Thus, this work aimed to study the evolution of the splitting length during the process of natural drying in the sawn wood of 24-year-old Liquidambar styraciflua, as a function of different diameter classes (upper, middle and lower) and two vertical positions along the stem commercial height. According to the results obtained, it was possible to conclude that the end splitting on green and dry boards was influenced only by the diameter class, where the upper class presented the greatest length of splitting while the lower class showed the smallest length. A strong relationship between the end splitting of dry board and green board was verified.
Highlights
The growth stresses of trees can be evaluated by means of the analysis of the end splitting on green and dry boards
This work aimed to study the evolution of the splitting length during the process of natural drying in the sawn wood of 24-year-old Liquidambar styraciflua, as a function of different diameter classes and two vertical positions along the stem commercial height
According to the results obtained, it was possible to conclude that the end splitting on green and dry boards was influenced only by the diameter class, where the upper class presented the greatest length of splitting while the lower class showed the smallest length
Summary
No Brasil, a indústria madeireira utiliza-se, em grande escala, de toras de árvores dos gêneros Pinus e Eucalyptus, com excelente aproveitamento de suas madeiras. Entre as espécies do gênero Liquidambar, pode-se destacar a espécie Liquidambar styraciflua L., popularmente conhecida como “sweet gum”; esta espécie vem sendo muito utilizada e estudada, principalmente nos Estados Unidos, em função do seu grande potencial madeireiro e das suas características silviculturais (Shimizu & Spir, 2004). Segundo Ponce (1995), as tensões de crescimento não são exclusivas do gênero Eucalyptus, mas de todas as folhosas, sendo que esse autor já observou sinais evidentes de tensão de crescimento no mogno (Swietenia machrophylla), no jatobá (Hymenaea sp), na andiroba (Carapa guianensis), no cedro (Cedrela sp), na tatajuba (Bagassa guianensis) e na cupiúba (Goupia glabra); entretanto, algumas espécies apresentam tensões mais intensas do que outras, devendo-se, então, testar todas as espécies com potencial madeireiro. O objetivo do presente trabalho foi estudar o comportamento das rachaduras durante o processo de secagem da madeira serrada de Liquidambar styraciflua, em função da posição da tora na árvore e das diferentes classes de diâmetro
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
