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Rotated sigmoid structures in managed uneven-aged northern hardwood stands: a look at the Burr Type III distributionAuthor(s): Jeffrey H. Gove; Mark J. Ducey; William B. Leak; Lianjun Zhang
Source: Forestry. 161-176.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: Download Publication (469.75 KB)
DescriptionStand structures from a combined density manipulation and even- to uneven-aged conversion experiment on the Bartlett Experimental Forest (New Hampshire, USA) were examined 25 years after initial treatment for rotated sigmoidal diameter distributions. A comparison was made on these stands between two probability density functions for fitting these residual structures: the Burr Type III and a finite mixture of Weibulls. All stands exhibited some form of uneven-aged structure (either reverse J or rotated sigmoid) after 25 years. The Burr distribution fits the final distributions as well as the more complicated finite mixture model in all cases.
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CitationGove, Jeffrey H.; Ducey, Mark J.; Leak, William B.; Zhang, Lianjun. 2008. Rotated sigmoid structures in managed uneven-aged northern hardwood stands: a look at the Burr Type III distribution. Forestry. 161-176.
- A finite mixture of two Weibull distributions for modeling the diameter distributions of rotated-sigmoid, uneven-aged stands
- Long-term structural change in uneven-aged northern hardwoods
- Modelling diameter distributions of two-cohort forest stands with various proportions of dominant species: a two-component mixture model approach.
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