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Physical and energetic properties of wood and charcoal of Hieronyma alchorneoides 190
Carvalho, Adriel Furtado; Brand, Martha Andreia; Nones, Daniela Letícia; Marco, Franchesco Thomas; Friederichs, Gustavo; Weise, Solange Maria Krug.
The aim of this study was to determine the physical and energetic properties of wood and charcoal obtained by carbonization of Hieronyma alchorneoides Allemão (licurana). Coal produced in family farming Biguaçu, SC, is to supplement the income. The most important results are: specific gravity of the timber presented 530 Kg m-³ and the gross calorific value greater of 4.315 kcal kg-1. The coal gravimetric yield was 37% and gross calorific value was 6.740 kcal kg-1. The wood of H. alchorneoides presents physical properties suitable for charcoal production. The charcoal showed excellent gravimetric yield.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest Resources; Forestry Pyrolysis; Gravimetric yield; Calorific value Recursos Florestais; Engenharia Florestal Pirólise; Rendimento gravimétrico; Poder calorífico.
Ano: 2014 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/662
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Growth of cedar seedlings at different substrates 190
Oliveira, Lúcio dos Reis; Lima, Sebastião Ferreira de; Lima, Ana Paula Leite de.
The production of native species requires the knowledge of the best substrates and subsequent initial growth of these seedlings. This work aimed to evaluate the initial growth cedar seedlings (Cedrela fissilis Vell.) in different substrates and their initial establishment in field. The experiment was conducted in two stages. The first was conducted in nursery in a randomized block design with four replications. Each plot consisted of four seedlings in plastic bags. The treatments consisted of eight different substrates: T1 (sand+ soil+manure 1:1:1), T2 (sand+soil+Plantmax 1:1:1), T3 (soil+manure 1:1), T4 (soil+Plantmax® 1:1), T5 (soil+manure 2:1), T6 (soil+Plantmax 2:1), T7 (soil+sand 1:1) and T8 (soil). Plant height, stem diameter, number of leaves,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest Resources; Silviculture Sexual propagation; Native species; Organic compounds Recursos Florestais; Silvicultura Propagação sexuada; Espécies nativas; Compostos orgânicos.
Ano: 2014 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/605
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Volume estimation of Pterogyne nitens in pure plantation in the southwest of Bahia 190
Fraga, Magno Pacheco; Barreto, Patrícia Anjos Bittencourt; Paula, Alessandro de.
The knowledge of wood volume is essential to determine the logging productive potential of a forest plantation. However, as this variable isn’t easily measurable it’s necessary the obtainment by estimation. This study aims to select volumetric models and analyze the efficiency of three different methods to estimate the wood volume (form factor, form quotient and adjusted volumetric equation) to the species Pterogyne nitens Tul. in pure plantation in Vitoria da Conquista, State of Bahia, Brazil. The sampled trees were logged and rigorously cubed, andeight volumetric models were adjusted. The best models were selected based on the pondered value of the statistical parameters scores and residues distribution. Stoate model presented the best performance to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest Resources; Dendrometry; Volumetry Volumetric models; Form factor; Form quotient Recursos Florestais; Engenharia Florestal; Dendrometria; Volumetria Modelos volumétricos; Fator de forma; Quociente de forma; Amendoim-bravo.
Ano: 2014 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/703
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