Inicio  /  Forest Systems  /  Vol: 22 Núm: 3 Par: 0 (2013)  /  Artículo
ARTÍCULO
TITULO

Above-ground biomass equations for Pinus radiata D. Don in Asturias

E. Canga    
U. Diéguez-Aranda    
A.K. Elias    
A. Cámara    

Resumen

Aim of the study: The aim of this study was to develop a model for above-ground biomass estimation for Pinus radiata D. Don in Asturias.Area of study: Asturias (NE of Spain).Material and methods: Different models were fitted for the different above-ground components and weighted regression was used to correct heteroscedasticity. Finally, all the models were refitted simultaneously by use of Nonlinear Seemingly Unrelated Regressions (NSUR) to ensure the additivity of biomass equations.Research highlights: A system of four biomass equations (wood, bark, crown and total biomass) was develop, such that the sum of the estimations of the three biomass components is equal to the estimate of total biomass. Total and stem biomass equations explained more than 92% of observed variability, while crown and bark biomass equations explained 77% and 89% respectively.Keywords: radiata pine; plantations; biomass.

 Artículos similares

       
 
Susanne Brandl,Wolfgang Falk,Thomas Rötzer,Hans Pretzsch     Pág. e007
Aim of study: (i) To estimate site productivity based on German national forest inventory (NFI) data using above-ground wood biomass increment (?B) of the stand and (ii) to develop a model that explains site productivity quantified by ?B in dependence on... ver más
Revista: Forest Systems

 
Carlos A. Gonzalez-Benecke, Herman N. Flamenco and Maxwell G. Wightman    
Allometric equations are useful tools for calculating tree and stand-level attributes, such as above-ground biomass or stem volume, using simple measurements that can be obtained from stand inventory data. These equations tend to be species-specific and ... ver más
Revista: Forests

 
María De los Ángeles Soriano-Luna, Gregorio Ángeles-Pérez, Mario Guevara, Richard Birdsey, Yude Pan, Humberto Vaquera-Huerta, José René Valdez-Lazalde, Kristofer D. Johnson and Rodrigo Vargas    
The proper estimation of above-ground biomass (AGB) stocks of managed forests is a prerequisite to quantifying their role in climate change mitigation. The aim of this study was to analyze the spatial variability of AGB and its uncertainty between active... ver más
Revista: Forests

 
Rafael Serrada,Valentín Gómez-Sanz,María J. Aroca,Javier Otero,J. Alfredo Bravo-Fernández,Sonia Roig     Pág. e06S
Aim of the study: To analyse the decline in aged holm oak coppice forests as regards above-ground and below-ground fractions and physiological features.Area of study: Centre of the Iberian Peninsula (Guadalajara province).Material and methods: 26 pairs o... ver más
Revista: Forest Systems

 
Y. Kumar,S. Singh,R.S. Chatterjee    
The study has been carried out in the Pauri Garhwal district of Uttarakhand keeping the focus on Corbett Tiger Reserve (CTR). The total area of CTR covered in the scene is 889 sq. km. The main aim of the paper is to develop a model by establishing a rela... ver más