Effect of age and plant spacing on the energy properties of black wattle

Autores

  • Elder Eloy Universidade Federal de Santa Maria
  • Dimas Agostinho da Silva Universidade Federal do Paraná
  • Braulio Otomar Caron Universidade Federal de Santa Maria
  • Rômulo Trevisan Universidade Federal de Santa Maria
  • Rafaelo Balbinot Universidade Federal de Santa Maria

DOI:

https://doi.org/10.14295/cs.v8i3.1771

Palavras-chave:

Acacia mearnsii De Wild, immediate chemical analysis, biomass, basic density

Resumo

The aim of this study was to determine the effect on the energy properties of different biomass components of Acacia mearnsii De Wild distributed in different plant spacings: 2.0x1.0 m, 2.0x1.5 m, 3.0x1.0 m and 3.0x1.5 m, in the 1st, 3rd and 5th years after planting. The experiment was performed in a complete randomized block design in three replicates. The following traits were determined: biomass (BIO), gross calorific value (GCV), basic density (BD), energy productivity (EP), energy density (ED), fixed carbon content (FCC), volatile material content (VMC) and ash content (AC) of different biomass components: wood, bark, branch and leaf. The effect of age significantly influenced all variables, providing an increasing distribution of BIO, EP, BD and ED. The four plant spacings provided different yields of BIO, EP, GCV and BD and the increased spacing caused a tendency to reduce BIO and EP values in all evaluated periods. In the 5th year, even being influenced by the spacing, the BD did not present a systematic increase or decrease over the provided living space. The three components of the trees induced a significant effect on the BIO, GCV, EP, FCC, VMC and AC variables.

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Publicado

2018-04-11

Como Citar

Eloy, E., Silva, D. A. da, Caron, B. O., Trevisan, R., & Balbinot, R. (2018). Effect of age and plant spacing on the energy properties of black wattle. Comunicata Scientiae, 8(3), 469–476. https://doi.org/10.14295/cs.v8i3.1771

Edição

v. 8 n. 3 (2017)

Seção

Artigos

Licença

A revista se reserva o direito de efetuar, nos originais, alterações de ordem normativa, ortográfica e gramatical, com vistas a manter o padrão culto da língua, respeitando, porém, o estilo dos autores. As provas finais serão enviadas aos autores. Os trabalhos publicados passam a ser propriedade da revista Comunicata Scientiae, ficando sua reimpressão total ou parcial, sujeita à autorização expressa da direção do periódico. Deve ser consignada a fonte de publicação original. Os originais não serão evolvidos aos autores. As opiniões emitidas pelos autores dos artigos são de sua exclusiva responsabilidade.