Notes: Solving for Weibull Diameter Distribution Parameters to Obtain Specified Mean Diameters
Authors: Ek, Alan R.; Issos, James N.; Bailey, Robert L.
Source: Forest Science, Volume 21, Number 3, 1 September 1975 , pp. 290-292(3)
Publisher: Society of American Foresters
Abstract:The problem of specifying Weibull distribution parameters for generating a diameter distribution with a desired quadratic mean is addressed. This quadratic mean is expressed as a function of a, b, and c, the location, scale, and shape parameters of the distribution, respectively. This relationship may be used to obtain either a, b, or c, given a desired quadratic mean diameter and values for the remaining two parameters. The problem of obtaining c values necessitates an iterative approach and methodology is developed for solutions on a desk calculator and a computer. The methodology facilitates the use of this convenient distribution in forest growth simulation studies. Forest Sci. 21:290-292.
Document Type: Miscellaneous
Affiliations: Forest Biometrician, Weyerhaeuser Company, Hot Springs, Arkansas
Publication date: 1 September 1975
- 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.
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