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Title: A site model for Pyrenean oak (Quercus pyrenaica) stands using a dynamic algebraic difference equation

Author: Carvalho, Joao P.; Parresol, Bernard R.;

Date: 2005

Source: Can. J. for. Res., Vol. 35: 93-99

Publication Series: Miscellaneous Publication

Description: 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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Carvalho, Joao P.; Parresol, Bernard R. 2005. A site model for Pyrenean oak (Quercus pyrenaica) stands using a dynamic algebraic difference equation. Can. J. for. Res., Vol. 35: 93-99

 


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