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Revista Chapingo: Serie Ciencias Forestales y del Ambiente
Article . 2013 . Peer-reviewed
License: CC BY NC
Data sources: Crossref
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CONTRACCIONES Y PROPIEDADES FÍSICAS DE ACACIA MANGIUM, TECTONA GRANDIS Y TERMINALIA AMAZONIA, MADERAS DE PLANTACIÓN EN COSTA RICA

Authors: Freddy Muñoz-Acosta; Pablo A. Moreno-Perez;

CONTRACCIONES Y PROPIEDADES FÍSICAS DE ACACIA MANGIUM, TECTONA GRANDIS Y TERMINALIA AMAZONIA, MADERAS DE PLANTACIÓN EN COSTA RICA

Abstract

De acuerdo con las normas ASTM D 2395-02 y D 143-94, se determinó la contracción total y normal en dirección radial (CR), tangencial (CT) y volumétrica (CV) y el coeficiente CT/ CR total y normal de Acacia mangium Willd., Tectona grandis L. f. y Terminalia amazonia A. Chev, maderas provenientes de plantación. También se determinaron algunas propiedades físicas como peso específico básico (PEB), PE12% y PEanhidro, densidad verde (DV) y normal (DN), punto de saturación de la fibra (PSF) y contenido de humedad (CH). Algunos criterios de clasificación, propuestos por otros investigadores, se aplicaron para categorizar la estabilidad dimensional y propiedades físicas de estas especies. Se encontró que la CR, CT, CV totales y CTtotal/CRtotal tienen diferencias significativas entre especies, al igual que las propiedades físicas PEB y PSF. El índice CTtotal/CRtotal indicó que T. grandis tiene mejor estabilidad dimensional. La relación lineal (R2= 0.7769) indicó que el PSF es un buen indicador de la magnitud de la CVtotal. Las especies de plantación de este estudio comparadas con las del bosque natural tienen estabilidad dimensional similar pero menor PEB.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
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