The Effect of Planting Density on Dominant Height in Unthinned Slash Pine Plantations
Abstract:The Chapman-Richards growth model was selected from several alternatives to describe the development of average dominant height in 36-year-old unthinned slash pine (Pinus elliottii Engelm.) plots planted at different initial densities in South Africa. Tests were made to determine the extent to which estimates of the model parameters were affected by differences in planting density ranging from 150 to 1,200 per acre at each of two forests. Results indicated no consistent relationship between any of the estimated parameters and planting density at either of the two forests. Differences such as did exist between individual height-age curves at a given location were ascribed to minor site quality differences rather than differences in planting density. The shape of the curves at the two locations was judged to be sufficiently similar for the development of an anamorphic site index equation. Forest Sci. 30:1059-1066.
Document Type: Journal Article
Affiliations: Instructor, at the School of Forest Resources, University of Georgia, Athens, GA 30602
Publication date: December 1, 1984
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