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Revista Chapingo serie ciencias forestales y del ambiente
versión On-line ISSN 2007-4018versión impresa ISSN 2007-3828
Resumen
QUINONEZ-BARRAZA, Gerónimo; ZHAO, Dehai; SANTOS-POSADAS, Héctor M. de los y CORRAL-RIVAS, José J.. An approximate height growth and site index model for Quercus sideroxyla Bonpl. in mixed-species stands of Durango, Mexico. Rev. Chapingo ser. cienc. for. ambient [online]. 2020, vol.26, n.1, pp.53-69. Epub 03-Mar-2021. ISSN 2007-4018. https://doi.org/10.5154/r.rchscfa.2019.03.025.
Introduction:
Predictions of dominant or co-dominant height are an important element in planning forest management with timber production objectives.
Objective:
To develop dominant height growth and site index (SI) equations for Quercus sideroxyla Bonpl.
Materials and methods:
The height current annual increment model was fitted, and the age of the sections was estimated from a database of 29 stem-mapped plots. A taper analysis data of 37 trees was also used to reconstruct dominant height growth trajectories. Three equations based on algebraic difference approach (ADA; one anamorphic and two polymorphic) and an equation based on generalized algebraic difference approach (GADA) were used to simultaneously model the dominant height and SI.
Results and discussion:
The ADA polymorphic equations were statistically better than the anamorphic equation, according to the adjusted coefficient of determination, root mean square error, mean bias, Akaike’s information criterion and log-likelihood; however, the GADA equation was better than the ADA equations. The growth curves were biologically realistic and showed SI classes at a base age of 60 years.
Conclusions:
The developed equations can be used for decision making in forest management when Q. sideroxyla shows dominance over Pinus species and the main objective is timber production.
Palabras llave : growth model; dominant height; generalized algebraic difference approach; current annual increment; height growth trajectories.