Abstract
EQUACOES DE VOLUME PARA QUALEA PARAENSIS E ERISMA UNCINATUM PARA O NORTE DE MATO GROSSO A utilizacao de modelos estatisticos na estimativa de volume constitui uma ferramenta fundamental para reducao de tempo e custos no manejo florestal. O presente estudo teve como objetivo aplicar e selecionar modelo de volume com e sem casca para Qualea paraensis Ducke e Erisma uncinatum Warm., a partir de dados de um inventario florestal na regiao Norte Mato-grossense. Foram testados 15 modelos atraves da analise de regressao, com as seguintes estatisticas de avaliacao utilizadas: erro padrao de estimativa; coeficiente de determinacao ajustado e analise grafica dos residuos. O modelo de Spurr (nao linearizado) foi o que apresentou melhores ajustes e pode ser utilizado na estimativa do volume total, volume comercial, com e sem casca para Qualea paraensis Ducke e Erisma uncinatum para a regiao norte de Mato Grosso. Palavras-chave: volumetria, cambara, cedrinho. ABSTRACT The use of statistical models in the volume estimate is a key tool to reduce time and costs in forest management. This study aimed to apply and select volume model with and without bark for Qualea paraensis Ducke and Erisma uncinatum Warm., based on data from a forest inventory in Northern Mato Grosso region. A total of 15 models were tested through regression analysis with the following evaluation statistics: standard error of estimate; adjusted coefficient of determination and graphical analysis of residuals. The Spurr model (not linearized) showed the best settings and can be used to estimate the total volume, the trading volume, with and without bark for Qualea paraensis Ducke and Erisma uncinatum in the north of Mato Grosso state, Brazil. Keywords: volumetry, cambara, cedrinho. DOI: http://dx.doi.org/10.14583/2318-7670.v04n04a11
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