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	Provedor de dados PFB - Pesquisa Florestal Brasileira (2) Autor Conceição, Marcio Barbosa da (2) Machado, Sebastião do Amaral (2) Urbano, Edilson (2) Figueiredo Filho, Afonso (1) Figueiredo, Décio José de (1) Palavra-chave Ajuste de modelos (1) Equação de afilamento (1) Equação de volume (1) Fator de forma (1) Form factor Volume por Smalian (1) Management regimes Perfil do fuste (1) Regime de manejo (1) Stem profile (1) Taper equation (1) Taper function (1) Volume by Smalian (1) Volume equation (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2011 (1) 2004 (1) País Brazil (2) Idioma Português (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Comparison of volume estimate methods for Pinus oocarpa at different ages and thinning regimes PFB - Pesquisa Florestal Brasileira Machado, Sebastião do Amaral; Urbano, Edilson; Conceição, Marcio Barbosa da. This research aims to compare stem volumes of P. oocarpa obtained by the methods of Smalian, form factor, volume equation and taper function. The used data came from 1100 trees distributed in 11 management regimes,  belonging to Duraflora S. A. , Agudos - SP. The trees were cubed and calculated theirs volumes, outside and inside  bark, for the mentioned methods. It was used the Test of  Bartlett and variance analysis for the comparison of  means. The variance analysis showed that significant  difference doesn’t exist among the methods for the 11  management regimes outside and inside bark at the level  of 95 % of probability. Tipo: Info:eu-repo/semantics/article Palavras-chave: Volume by Smalian; Volume equation; Taper equation; Form factor Volume por Smalian; Equação de volume; Equação de afilamento; Fator de forma. Ano: 2011 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/242 Comparison of taper functions for different ages and thinning regimes in Pinus oocarpa plantations PFB - Pesquisa Florestal Brasileira Machado, Sebastião do Amaral; Urbano, Edilson; Conceição, Marcio Barbosa da; Figueiredo Filho, Afonso; Figueiredo, Décio José de. The present research work aimed to test several taper models and to select the one of the best adjustment. The used data, belonging to Duraflora S. A. Located in the county of Agudos, State of São Paulo, is composed of 1100 trees of Pinus oocarpa distributed in 11 management regimes. The adjusted models were: Polinomial of the 5th degree, Polinomial of 2nd degree, Polynomial of Fractionary power, beside the models of volume ratio from Amateis & Burkhart, and the one from Clutter. The selection of the best model was based on a “ ranking “ with the determination coefficient (R2) and the standard error of estimate in percentage (Syx%) and posterior graphic analysis of the stem profile to detect the model that provided diameter estimates more acurated... Tipo: Info:eu-repo/semantics/article Palavras-chave: Stem profile; Taper function; Management regimes Perfil do fuste; Ajuste de modelos; Regime de manejo. Ano: 2004 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1595 Registros recuperados: 2 Primeira ... 1 ... Última

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