Differences in moisture content and shrinkage between innerwood and outerwood of a single cottonwood tree

An eastern cottonwood (Populus deltoides Bartr. ex Marsh.) tree was harvested and used to determine radial and tangential shrinkage, specific gravity (SG), and green moisture content (MC). Observations were made from outerwood (sapwood) and innerwood (heartwood) at various locations along the bole....

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Bibliographic Details
Published inForest products journal Vol. 45; no. 10; pp. 89 - 92
Main Authors Shupe, T.F. (Louisiana State Univ. Agri. Ctr., Baton Rouge, LA.), Choong, E.T, Gibson, M.D
Format Journal Article
LanguageEnglish
Published Madison, WI Forest Products Society 01.10.1995
Subjects
ALBURA
ALTURA
Applied sciences
AUBIER
BOIS DE COEUR
CONTENIDO DE HUMEDAD
DENSIDAD
DENSITE
Density
DURAMEN
Exact sciences and technology
Forest products industry
HAUTEUR
MERMA
Moisture content
Polymer industry, paints, wood
POPULUS DELTOIDES
Properties and testing
RETRAIT
Shrinkage
Statistical analysis
Studies
TENEUR EN EAU
Trees
Variance analysis
Water
Wood
Wood. Paper. Non wovens
United States > US
Sapwood
Wood
Heartwood
Water content
Hardwood
Shrinkage
Experimental study
Physical properties
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Summary:An eastern cottonwood (Populus deltoides Bartr. ex Marsh.) tree was harvested and used to determine radial and tangential shrinkage, specific gravity (SG), and green moisture content (MC). Observations were made from outerwood (sapwood) and innerwood (heartwood) at various locations along the bole. Innerwood showed an almost three times greater green MC than outerwood in winter. Outerwood was significantly greater than innerwood for radial and tangential shrinkages and SG. Volumetric shrinkage was found to be negatively correlated with height for both wood types, but the correlation between volumetric shrinkage and SG was not significant for any wood type
Bibliography:9568605
K50
ISSN:0015-7473
2376-9637