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A Height–Diameter Curve for Longleaf Pine Plantations in the Gulf Coastal PlainAuthor(s): Daniel Leduc; Jeffery Goelz
Source: South. J. Appl. For. 33(4):164-170; errata 34(4):189
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
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DescriptionTree height is a critical component of a complete growth-and-yield model because it is one of the primary components used in volume calculation. To develop an equation to predict total height from dbh for longleaf pine (Pinus palustris Mill.) plantations in the West Gulf region, many different sigmoidal curve forms, weighting functions, and ways of expressing height and diameter were explored. Most of the functional forms tried produced very similar results, but ultimately the form developed by Levakovic was chosen as best. Another useful result was that scaling diameters by the quadratic mean diameter on a plot and height by the average height of dominant and codominant trees in the target stand resulted in dramatically better fits than using these variables in their raw forms.
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CitationLeduc, Daniel; Goelz, Jeffery. 2009. A Height–Diameter Curve for Longleaf Pine Plantations in the Gulf Coastal Plain. South. J. Appl. For. 33(4):164-170; errata 34(4):189.
KeywordsPinus palustris, nonlinear models, model evaluation
- Modeling survival, yield, volume partitioning and their response to thinning for longleaf pine plantations
- Individual tree diameter, height, and volume functions for longleaf pine
- A Tree Taper Model Based on Similar Triangles and Use of Crown Ratio as a Measure of Form in Taper Equations for Longleaf Pine
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