Weibull Diameter Distribution
The Weibull diameter distribution is a flexible three-parameter probability model used to describe the size-class distribution (proportion of trees by diameter class) in forest stands. Introduced by Bailey and Dell in 1973, the Weibull function provides an excellent fit to observed diameter distributions across diverse forest types and management histories. It is widely used in growth simulators, yield models, and forest inventory analysis because it can capture a variety of distribution shapes (right-skewed, near-normal, and even multi-modal) with just three parameters.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Bailey, R. L., & Dell, T. R. (1973). Quantifying diameter distributions with the Weibull function. Forest Science, 19(2), 97–104. · DOI 10.1093/forestscience/19.2.97
- Rennolls, K., Geary, D. N., & Rollinson, T. J. (1985). Characterizing diameter distributions by the use of the Weibull distribution. Forestry, 58(1), 57–66. · DOI 10.1093/forestry/58.1.57
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