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A Growth Model for Mixed Species Stands

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A technique for predicting stand tables for each of two species groups in a mixed species stand was developed. Future stand conditions for each species group are determined by integrating a system of differential equations which relate rates of change in per acre values of basal area, sum of diameters, and numbers of trees to current amounts of basal area, sum of diameters, and numbers of trees. Solutions to the system at future times include estimates of basal area, sum of diameters, and number of trees for each species group. Parameter recovery is used to obtain the Weibull diameter distribution parameters for each species group, which are used to develop predicted stand tables. Forest Sci. 32:697-706.

Keywords: Growth and yield; Weibull distribution; diameter distributions; mathematical models; parameter recovery

Document Type: Journal Article

Affiliations: Professor of Forest Biometry, Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907

Publication date: September 1, 1986

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