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| Mendes Nascimento, Rodrigo Geroni; Machado, Sebastião do Amaral; Figueiredo, Décio José de; Augustynczik, Alan Lessa Derci; Cavalheiro, Ricardo. |
| The objective of this research was to study the relationship between the DBH with crown diameter,stump diameter and inside bark diameter at breast height of Araucaria angustifólia (Bert.) O, Kuntze. The data from the mentioned variables came from 162 Araucaria distributed in the whole amplitude of diameter at breast height in a Mixed Ombrophylous Forest fragment with 15,24 hectares located at the Curitiba urban region, State of Parana, Brazil. All the fitted relationships resulted in predictive equations with good values for the Schlaegel Index, Syx%, value of F and value of ρ for the coefficients, as well as good performance in the graphic analysis of residual. doi: 10.4336/2010.pfb.30.64.369 |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crow diameter; Stump diameter; Predictive models Diâmetro de copa; Diâmetro de toco; Equações preditivas. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/53 |
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| 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 |
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