A site model for Pyrenean oak (Quercus pyrenaica) stands using a dynamic algebraic difference equation
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Data
2005
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Can. J. For. Res
Resumo
This paper presents a growth model for dominant-height and site-quality estimations for Pyrenean oak
(Quercus pyrenaica Willd.) stands. The Bertalanffy–Richards function is used with the generalized algebraic difference
approach to derive a dynamic site equation. This allows dominant-height and site-index estimations in a compatible
way, using any desirable base age and allowing estimations to be time independent, which are important properties for
site models. The database contains all possible height-growth intervals. The model is fitted considering residual
autocorrelation, giving more efficient parameter estimates. Finally, the model behavior is analyzed by calculating error
statistics from dominant-height and site-index estimations at different ages.
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site model , Pyrenean