Inicio  /  Ciéncia Florestal  /  Vol: 20 Núm: 1 Par: 0 (2010)  /  Artículo
ARTÍCULO
TITULO

Site index model for natural stands of rebollo oak (Quercus pyrenaica Willd.) in Galicia, NW Iberian Peninsula.

Ignacio Javier Díaz-Maroto    
José Fernández-Parajes    
Pablo Vila-Lameiro    
Eva Barcala-Pérez    

Resumen

Data from stem analysis of 56 dominant trees of Quercus pyrenaica Willd., in natural stands in Galicia (NW Iberian Peninsula), were used to evaluate four dynamic site equations derived with the Generalized Algebraic Difference Approach (GADA). All the equations are base-age invariant and directly estimate height and site index from any height and age. The fittings were made using a data structure involving all possible growth intervals. The GADA formulation derived on the basis of the Bertalanffy-Richards model by considering the asymptote and the initial pattern parameters as related to site productivity. It is therefore recommended for height growth prediction and site classification for natural stands of rebollo oak in Galicia. The autocorrelation was analyzed with a test of residuals using Durbin's t-test without reaching a manifest result of autocorrelation between managed data.

 Artículos similares

       
 
Taketo Eguchi and Masahiro Tasumi    
This study investigated two popular satellite-derived vegetation indices (VIs), MODIS NDVI and EVI, as tools for monitoring crop growth at the Thapanzeik Dam irrigation district in Myanmar, where quality ground data are difficult to obtain. The time-seri... ver más
Revista: Agriculture

 
Nicola Cinosi, Silvia Portarena, Leen Almadi, Annalisa Berrettini, Mariela Torres, Pierluigi Pierantozzi, Fabiola Villa, Andrea Galletti, Franco Famiani and Daniela Farinelli    
A new non-destructive index of absorbance difference (IAD), calculated with different wavelengths as references, near the chlorophyll absorbance peak or that for anthocyanin, has been used to determine the fruit ripening of several fruit species using po... ver más
Revista: Agriculture

 
Vitalijus Stirke, Linas Balciauskas and Laima Balciauskiene    
The diversity of small mammal communities is a measure of the sustainability of habitats, especially agricultural ones. Based on 2018?2020 data from 18 sites in Lithuania, we analysed factors related to diversity of such a community, specifically the rel... ver más
Revista: Agriculture

 
Yuanmei Jiao, Zhiqin Zha and Qiue Xu    
Understanding the influence of landscape patterns on the water quality of agricultural wetlands is critically important for their management and related decision-making. However, the question of how to quantify this objectively remains a challenge in the... ver más
Revista: Agriculture

 
Ivana Rendulic Jelu?ic, Branka ?akic Bobic, Zoran Grgic, Sa?a ?ikovic, Mirela Osrecak, Ivana Puhelek, Marina Anic and Marko Karoglan    
The practical application of grape quality zoning and selective harvesting in small vineyards (<1 ha) has not yet gained much importance worldwide. However, winegrowers with small vineyards are looking for ways to improve wine quality and maximise profit... ver más
Revista: Agriculture