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Ciência Florestal
Centro de Pesquisas Florestais - CEPEF, Departamento de Ciências Florestais - DCFL, Programa de Pós Graduação em Engenharia Florestal - PPGEF
ISSN: 0103-9954
EISSN: 0103-9954
Vol. 18, No. 3, 2008, pp. 291-305
Bioline Code: cf08027
Full paper language: Portuguese
Document type: Research Article
Document available free of charge

Ciência Florestal, Vol. 18, No. 3, 2008, pp. 291-305

 pt Biomasa en plantaciones de Eucalyptus viminalis check for this species in other resources Labill. de la provincia de Buenos Aires, Argentina
Ferrere, Paula; Lupi, Ana Maria; Boca, Rosa; Nakama, Vicente & Alfieri, Adelqui

Resumo

El presente trabajo se desarrolló en el oeste de la provincia de Buenos Aires, Argentina con el objetivo de ajustar funciones de biomasa de árboles individuales y determinar la biomasa en diferentes compartimientos de la planta y el sotobosque. Se identificaron rodales de Eucalyptus viminalis check for this species in other resources Labill. cuyas edades oscilaron entre 4 y 14 años. Se apearon 21 árboles con diámetros entre 9,2 y 32,5 cm. Se desarrollaron regresiones simples y múltiples y se estimó el volumen, la biomasa en ramas, hojas y fuste. Las ecuaciones de volumen de mejor comportamiento son basadas en modelos lineales en su forma normal, y el modelo más adecuado fue el que incorporó al d2 (R2 = 0,92). Para la estimación de la biomasa en hojas, ramas, copa y fuste se recomienda los modelos ln-ln que consideran el d y h o solo el d. El componente de la biomasa en hojas presentó una estimación más débil. La distribución de la biomasa en los individuos sigue el patrón de desarrollo que se encuentra en la bibliografía. La proporción de la biomasa en la copa disminuye con la edad, contrariamente a lo sucedido con el fuste.

Palavras-chave
modelos de biomasa; modelos de volumen; Eucalyptus; región semiárida

 
 en Biomass in Eucalyptus viminalis check for this species in other resources Labill. plantations in Buenos Aires province, Argentina
Ferrere, Paula; Lupi, Ana Maria; Boca, Rosa; Nakama, Vicente & Alfieri, Adelqui

Abstract

The present work was developed in the West of Buenos Aires Province (Argentina) with the objective of adjusting functions of biomass of individual trees, in their different compartments and in the understorey. Stands of Eucalyptus viminalis check for this species in other resources Labill. were identified, with ages between 4 and 14 years-old. Twenty-one individuals were felled with diameters ranging from 9,2 to 32,5 cm. Simple and multiple regression models were developed and volume, branch leaf and stem biomass were estimated. The best volume equations were based on lineal models and the most adequate behavior was obtained with d2. To estimate leaf, branch and stem, ln-ln models have been suggested, with diameter and h or only diameter. The leaf biomass presented the weakest adjustment. The distribution of trees biomass agrees with the bibliography. The proportion of crown biomass decreases with age; on the other hand, the proportion of stem biomass increases with age.

Keywords
biomass models; volume models; Eucalyptus; semiarid region

 
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Alternative site location: http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/index

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