Dynamic site model for loblolly pine (Pinus taeda L.) plantations in the United States

Data from a large, long-term loblolly pine (Pinus taeda L.) plantation study including 186 permanent sample plots were used to evaluate four dynamic site equations derived with the generalized algebraic difference approach (GADA). All of the equations are base-age invariant and directly estimate hei...

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Bibliographic Details
Published in:Forest science 2006-06, Vol.52 (3), p.262-272
Main Authors: Dieguez-Aranda, U, Burkhart, H.E, Amateis, R.L
Format: Article
Language:English
Subjects:
base-age invariant equations
dynamic equations
equations
forest stands
forest trees
forest yields
Forestry
generalized algebraic difference approach (GADA)
height
mathematical models
Pinus taeda
site index
stand management
tree age
tree and stand measurements
Trees
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Summary:Data from a large, long-term loblolly pine (Pinus taeda L.) plantation study including 186 permanent sample plots were used to evaluate four dynamic site equations derived with the generalized algebraic difference approach (GADA). All of the equations are base-age invariant and directly estimate height and site index from any height and age. The fittings were done in one stage using the base–age invariant dummy variables method. A first-order autoregressive error structure was used to correct the serial correlation of the longitudinal data used in this study. Cieszewski’s model (Cieszewski, C.J. 2002. Comparing fixed- and variable-base–age site equations having single versus multiple asymptotes. For. Sci. 48:7–23) best described the data.
ISSN:0015-749X
1938-3738
DOI:10.1093/forestscience/52.3.262