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CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNING

Ciência florestal, 2013-12, Vol.23 (4), p.755-760 [Peer Reviewed Journal]

ISSN: 0103-9954 ;EISSN: 1980-5098 ;DOI: 10.5902/1980509812359

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  • Title:
    CHEMICAL COMPOSITION OF EUCALIPT WOOD WITH DIFFERENT LEVELS OF THINNING
  • Author: Antônio José Vinha Zanuncio ; Jorge Luiz Colodette ; Fernando Jose Borges Gomes ; Angélica de Cassia Oliveira Carneiro ; Benedito Rocha Vital
  • Subjects: desbaste ; Eucalyptus ; lignina
  • Is Part Of: Ciência florestal, 2013-12, Vol.23 (4), p.755-760
  • Description: http://dx.doi.org/10.5902/1980509812359 The objective of this study was to evaluate different thinning regimes in forest plantations of eucalypt(Eucalyptus grandis x Eucalyptus urophylla) clones to produce timber for cellulose and charcoal to verifywhether this effect could affect the proportion of the chemical components of wood. The average initialspacing between plants was 3x3 m and the treatments were: T1= control, T2, T3and T4 with thinning 20%,35% and 50% of the basal area, respectively. The results were analyzed by Tukey test at 5% probability.According to the results found the lignin content from treatment T4 was higher than that of the others; thegroups of uronic acids of the T1 was similar to all other treatments, but the levels of T2 and T4 differedbetween them. The extractives content of T1was similar to the T2 and T3 and lower than that of theT4; thecarbohydrates of T1 were similar to that of T3 and higher than the others. It was concluded that thinningincreases the quality of the wood to be used as energy purposes, such as charcoal production, but it did notincrease productivity for wood pulp and paper production.
  • Publisher: Universidade Federal de Santa Maria
  • Language: Portuguese
  • Identifier: ISSN: 0103-9954
    EISSN: 1980-5098
    DOI: 10.5902/1980509812359
  • Source: Bioline International
    DOAJ Directory of Open Access Journals
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