|
|
| Machado, Sebastião do Amaral; Figura, Marco Aurélio; Silva, Luís César Rodrigues da; Téo, Saulo Jorge; Stolle, Lorena; Urbano, Edílson. |
| The objectives of this research were: to develop equations to estimate the stem and firewood volume of bracatinga (Mimosa scabrella Benth.); to evaluate the accuracy of the estimates having as a comparator the true volumes obtained by the xylometer method; to test the validity of Ahrens' (1981) published equation. In bracatinga stands, 384 trees were measured until a minimum diameter of 4 cm at the small end. The validation set was composed by 55 trees measured by the xylometer. The ² (chi-square), aggregated difference test, standard error of estimation, average error and graphical distribution of the residuals were used on validation process. The best equation obtained for the stem was provided by Schumacher-Hall model. For firewood, data were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Volume equations validation xylometer. Equações de volume; Validação; Xilômetro.. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/59 |
| |
