Effect of age and site on the height distribution of Mimosa scabrella

Authors

  • Ronan Felipe Souza UFPR
  • Rodrigo Geroni Mendes Nascimento UFPR
  • Sylvio Pellico Netto UFPR
  • Sebastião Amaral Machado UFPR

DOI:

https://doi.org/10.5380/rf.v43i2.25290

Keywords:

Bracatinga, distribuição hipsométrica, mínimos quadrados.

Abstract

Abstract

This study aimed to evaluate the effect of site and age on the height distribution in native stands of “bracatinga” (Mimosa scabrella Benth) on the Metropolitan Region of Curitiba, PR, Brazil, as well as to select a Probability Density Function (pdf), between six, that represents the histogram of the variable height of these stands. It was used height data from 88 plots with variable area from 100 to 400 m², classified into three site classes. The ages 5, 8, 9 and 13 years were selected for fitting probability density functions by each site. The adjustment of the models was performed using the Solver application of Microsoft Excel 2007, by the least squares method. The pdfs tested were Beta, Gamma, Log Normal, Normal, Weibull and Sb Johnson, being selected the best by Kolmogorov-Smirnov test, Schlaegel Index and Percentage Standard Error of Estimate. The site and age affect the amplitude, shape and dynamics of the height distribution, with the site related to the kutosis and age to skewness of the distribution. The pdf that best described height distribution of the native stands of “bracatinga” was Beta function, followed by Sb Johnson and Normal.

Keywords: Bracatinga; hypsometric distribution; least squares.

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Published

2013-07-02

How to Cite

Souza, R. F., Nascimento, R. G. M., Pellico Netto, S., & Machado, S. A. (2013). Effect of age and site on the height distribution of Mimosa scabrella. Floresta, 43(2), 271–280. https://doi.org/10.5380/rf.v43i2.25290

Issue

Vol. 43 No. 2 (2013)

Section

Artigos

License

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