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Probability Distributions in High-Density Dendroenergy Plantations

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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.

Keywords: Weibull; bioenergy; probability density functions; short rotation crops; stocking

Document Type: Research Article

DOI: http://dx.doi.org/10.5849/forsci.11-028

Publication date: December 2, 2012

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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