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| Reis, Aliny Aparecida dos; Protásio, Thiago de Paula; Melo, Isabel Cristina Nogueira Alves de; Trugilho, Paulo Fernando; Carneiro, Angélica de Cássia Oliveira. |
| This work aimed to evaluate the effect of planting sites on the elemental chemical composition of Eucalyptus urophylla wood and the quality of its charcoal and to verify the statistical relations among the properties measured in wood and charcoal. It was used twelve 7-years old trees from E. urophylla clone from Curvelo, Itacambira and Turmalina counties located in Minas Gerais State, Brazil. The elemental chemical composition (C, H, N, S and O) of the wood and C/H and C/N relations were determined. The wood was carbonized in a laboratorial muffle furnace. It was determinate the gravimetric yields in charcoal, in pyroligneous extract and, by difference, the non-condensable gases. The apparent relative density, the higher heating value, the proximate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Iron industry Clone Correlations Biofuel Recursos Florestais; Engenharia Florestal; Energia da Biomassa Siderurgia Clone Correlações Biocombustível. |
| Ano: 2012 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/363 |
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| Protásio, Thiago de Paula; Couto, Allan Motta; Reis, Aliny Aparecida dos; Trugilho, Paulo Fernando; Godinho, Tayana Pedrozo. |
| O objetivo deste trabalho foi avaliar o potencial energético e siderúrgico do carvão vegetal de clones de Eucalyptus grandis e Eucalyptus urophylla aos 42 meses de idade. Foram utilizadas madeiras de sete clones. As carbonizações foram realizadas em um forno elétrico (mufla) com temperatura final de 450 °C. Determinaram-se os rendimentos da carbonização, a composição química imediata e elementar, o poder calorífico superior e inferior, a densidade relativa aparente e energética e o estoque em carbono fixo. Para a análise dos dados utilizou-se o método de componentes principais. Os clones G129 e U059 se destacaram para o uso siderúrgico e energético, principalmente pelos maiores valores de densidade relativa aparente e energética, estoque em carbono fixo,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recursos Florestais; Engenharia Florestal; Energia de Biomassa Eucalipto; Bioenergia; Biorredutor Eucalyptus; Bioenergy; Bio-reducer. |
| Ano: 2013 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/448 |
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| Silva, Sérgio Teixeira da; Mello, José Marcio de; Acerbi Junior, Fausto Weimar; Reis, Aliny Aparecida dos; Raimundo, Marcel Regis; Silva, Iasmim Louriene Gouveia; Scolforo, José Roberto Soares. |
| Remote sensing imagery can be a very useful auxiliary tool for native forests inventory. Thus, the objective of this study was to evaluate the stratification of a cerrado (Brazilian savanna) patch based on visual image interpretation techniques as well as to compare the errors from two sampling designs, the Stratified Random Sampling (SRS) and the Systematic Sampling (SS).The study area corresponds to a cerrado sensu stricto patch located in the municipality of Papagaios, Minas Gerais, Brazil. The cerrado wood volumes were obtained from a forest inventory field campaign where 32 plots were measured systematically. The study area was stratified based on a visual interpretation of a Landsat 5 TM image, and the strata formed were: “Strata I”, “Strata II”,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Systematic sampling; Tratified Random Sampling; Visual image interpretation; Remote Sensing Engenharia Florestal; Manejo e Inventário Florestal; Sensoriamento Remoto Amostragem Sistemática; Amostragem Casual Estratificada; Interpretação visual de imagens; Sensoriamento remoto. |
| Ano: 2014 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/742 |
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