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Ciência Florestal
Article . 2013 . Peer-reviewed
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Ciência Florestal
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Ciência Florestal
Article . 2013
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Composição química da madeira de eucalipto com diferentes níveis de desbaste

Authors: Zanuncio, Antônio José Vinha; Colodette, Jorge Luiz; Gomes, Fernando Jose Borges; Carneiro, Angélica de Cassia Oliveira; Vital, Benedito Rocha;

Composição química da madeira de eucalipto com diferentes níveis de desbaste

Abstract

http://dx.doi.org/10.5902/1980509812359O objetivo deste estudo foi avaliar diferentes regimes de desbaste em plantios silviculturais de clones de eucalipto (Eucalyptus urophylla x Eucalyptus grandis) para produção de madeira visando à obtenção de celulose e carvão com a finalidade de verificar se este efeito poderia afetar quantitativamente a proporção dos componentes químicos da madeira. O espaçamento inicial médio entre plantas foi de 3 x 3 m e os tratamentos foram: T1= testemunha, T2, T3 e T4 com desbaste de 20%, 35% e 50% da área basal presente, respectivamente. Os resultados foram submetidos ao teste de Tukey com 5% de probabilidade. De acordo com os resultados, constatou-se que o teor de lignina resultante do tratamento T4 foi maior que o dos demais; o de grupos urônicos do T1 foi semelhante ao dos demais tratamentos, mas os teores dos T2 e T4 diferiram entre si. O teor de extrativos do T1 foi semelhante ao dos T2 e T3 e menor que o do T4; o de carboidratos do T1 foi semelhante ao do T3 e superior aos demais. Concluiu-se que o desbaste aumenta a qualidade da madeira para ser utilizada como fins energéticos, como produção de carvão, mas não aumenta a produtividade de madeira destinada à confecção de celulose e papel.

Keywords

desbaste, lignina, Eucalyptus, S, lignin, Agriculture, Forestry, SD1-669.5, grinding

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
19
Top 10%
Top 10%
Average
gold