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Evolution of Acoustical, Geometrical, Physical, and Mechanical Parameters from Seedling to Cutting Age in Eucalyptus Clones Used in the Pulp and Paper Industries in Brazil

Forest products journal, 2019-03, Vol.69 (1), p.5-16 [Peer Reviewed Journal]

COPYRIGHT 2019 Forest Products Society ;Copyright Forest Products Society 2019 ;ISSN: 0015-7473 ;EISSN: 2376-9637 ;DOI: 10.13073/FPJ-D-17-00013

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Title:
Evolution of Acoustical, Geometrical, Physical, and Mechanical Parameters from Seedling to Cutting Age in Eucalyptus Clones Used in the Pulp and Paper Industries in Brazil
Author: Goncalves, Raquel ; Gustavo, Rafael ; Lorensani, Mansini ; Ruy, Monica ; Veiga, Nadia Schiavon ; Muller, Gabriela ; Alves, Cilene da Silva ; Martins, Guilherme Alonso
Subjects: Acoustic properties ; Acoustics ; Age ; Analysis ; Cloning ; Cutting parameters ; Density ; Eucalyptus ; Evolution ; Forecasts and trends ; Mechanical properties ; Paper industry ; Paper mills ; Prediction models ; Production management ; Propagation velocity ; Pulp ; Pulp & paper industry ; Quality ; Seedlings ; Stiffness ; Trees ; Ultrasound ; Velocity ; Wave propagation ; Wood ; Wood pulp industry
Is Part Of: Forest products journal, 2019-03, Vol.69 (1), p.5-16
Description: Wood-processing industries must be able to estimate the properties of wood to properly manage the wood production chain. For this estimation, changes in certain characteristics over time must be identified so that they can be used to rapidly differentiate a clone or species. Of interest are acoustical, geometrical, physical, and mechanical properties, all measurable in seedlings. Thus, the objective of this research was to analyze the evolution of the ultrasonic wave propagation velocity, diameter, height, basic density, strength, and stiffness starting in nursery seedlings at 3 months of age to trees at 6 years of age, which is the cutting age used by the pulp and paper industry in Brazil. The experiment was conducted in 121 seedlings and 270 trees of three Eucalyptus clones. Within the age range analyzed, the results indicated that all parameters have the potential to be used in a predictive model to estimate the future quality of clones, although the predictive value of these parameters varies. The ultrasonic wave propagation velocity was the only property that maintained the coherent differences among clones from the seedling to the cutting age (6 yr old). The strength, stiffness, diameter, and height maintained coherence from 12 months to the cutting age, whereas the basic density was maintained from the age of 24 months to the cutting age. We hope that these results will contribute to improving the methods to select clones.
Publisher: Madison: Forest Products Society
Language: English
Identifier: ISSN: 0015-7473
EISSN: 2376-9637
DOI: 10.13073/FPJ-D-17-00013
Source: ProQuest Central

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Evolution of Acoustical, Geometrical, Physical, and Mechanical Parameters from Seedling to Cutting Age in Eucalyptus Clones Used in the Pulp and Paper Industries in Brazil

COPYRIGHT 2019 Forest Products Society ;Copyright Forest Products Society 2019 ;ISSN: 0015-7473 ;EISSN: 2376-9637 ;DOI: 10.13073/FPJ-D-17-00013

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