Modelagem da distribuição diamétrica de povoamentos de eucalipto utilizando a função Gama

CERNE

Binoti, Mayra Luiza Marques da Silva²  Castro, Renato Vinícius Oliveira¹  Binoti, Daniel Henrique Breda³  Alcântara, Aline Edwiges Mazon de³  Leite, Helio Garcia³  Araújo Júnior, Carlos Alberto³ 

[1] Universidade de Brasília/UnB, Brasilia, Brasil$$;Universidade Federal dos Vales do Jequitinhonha e Mucuri/UFVJM, Diamantina, Brasil$$;Universidade Federal de Viçosa/UFV, Viçosa, Brasil$$

关键词: Probability density function;    Gama distribution;    projection;    forest management.;   

DOI  :  10.1590/S0104-77602013000200015

来源: Universidade Federal de Lavras-UFLA

【 摘 要 】

This study evaluated the behavior of the Gamma probability density function to describe the diameter distribution of eucalyptus stand at different ages. A projection model of the distribution of diameters was constructed and fitted to data from permanent plots. The settings of the Gamma function were assessed by Kolmogorov-Smirnov (KS) test and the diametric distribution model was assessed by the determination coefficients and residual graphs of the estimates generated by the equations that compose the model. The diameter distributions estimated by the system of equations were compared with the distributions observed by the KS test. Most of the adjustments made by the KS test presented adherence. The model was able to design the diameter distributions satisfactorily, following the trend of flattening of the curve of distribution in a sequence of ages. Thus, the Gamma function can be used with statistical efficiency in a projection model of the diameter distribution in eucalyptus stands.

【 授权许可】

Unknown