Probability Distributions in High-Density Dendroenergy Plantations
Abstract:Six probability density functions were used to model diametric distributions of Acacia melanoxylon, Eucalyptus camaldulensis, and Eucalyptus nitens being investigated for dendroenergy purposes at three plantation densities (5,000, 7,500, and 10,000 trees ha−1). The Weibull was the function with the best fit, followed in decreasing order by the beta, Johnson SB, gamma, lognormal, and Johnson SU functions. Planting density affected the shape and amplitude of the diametric distribution of all species. Increasing stocking made distributions more leptokurtic and narrower. Analyses over time during the first 28 months suggested a stronger effect on diameter distribution form, which was less evident during the early ages of the crop.
Document Type: Research Article
Publication date: December 16, 2012
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