Data/hora: 02/06/2024 05:36:22

Provedor de dados: | 190
País: | Brazil

Título:

Equations for calculation of volume and weight of aerial compartiments of eight-year-old Grevillea robusta (Cunn.) trees

Equações para cálculo do volume e peso de compartimentos aéreos de árvores de Grevillea robusta (Cunn.) aos oito anos de idade.

Autores: | Ferreira, Carlos Alberto; Martins, Emerson Gonçalves; Silva, Helton Damin da.
Data: | 2004-12-30
Ano: | 2004
Palavras-chave: | Volume; Weight; Heartwood; Sapwood; Branches; Leaves Volume; Peso; Cerne; Alburno; Ramos; Folhas.
Resumo: | This paper presents results obtained for fitting equations to estimate volume and weight of aerial compartments of Grevillea robusta trees. Twelve trees representing four provenances were collected from an eight-year-old provenance trial located in the municipality of Anhembi, State of São Paulo. The trunks of the trees were segmented until the minimum diameter of 5 cm. The heartwood was measured till the height it was possible to be distinguished in the tree. Allometric models were the most suitable for this paper proposes. The inclusion of the combined variable (total height multiplied by the diameter at breast height) contributed to a better adjustment of most equations. The standard errors of the estimates were relatively high for heartwood and bark weight. It is worthwhile to point out the high correlation obtained among the weight of the leaves and sapwood weight. It deserves additional research face the high importance of the weight of the leaves to physiologically based growth models and practical difficulties of its estimation. The coefficients obtained for all models and variables studied are presented in the text.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português
Identificador: | http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1292
Editor: | Embrapa Florestas
Relação: | http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1292/627
Formato: | application/pdf

Fonte:

Pesquisa Florestal Brasileira; n. 49 (2004): jul./dez.; 31-45

Brazilian Journal of Forestry Research; n. 49 (2004): jul./dez.; 31-45

1983-2605

1809-3647

Fonte: | http://creativecommons.org/licenses/by-nc-nd/4.0