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Effect of Tree Height and Radial Distance on Physical Properties of Eucalyptus Teriticornis.

M.F. Kabir
Research Officer (Ex)
Seasoning and Timber Physics Division, Bangladesh Forest Research Institute, Chittagong.

M. A. Sattar
Seasoning and Timber Physics Division, Bangladesh Forest Research Institute, Chittagong.

D. K. Bhattacharjee
Seasoning and Timber Physics Division, Bangladesh Forest Research Institute, Chittagong.

Abstract/ Executive Summary:

Physical properties, such as, specific gravity, volumetric shrinkage and moisture content of Eucalyptus teriticornis have been studied from the pith to periphery and bottom to top position. Results show that specific gravity increases radially from the pith to outward, but decreases near the periphery. On the other hand, specific gravity increases significantly as the height increases. In the case of volumetric shrinkage, no such trend of variation has been observed. Moisture content decreases significantly from the bottom to top, whereas it does not show any change from the pith to periphery.

Keywords: Physical properties, Eucalyptys teriticornis, Bottom to top position, Increases significantly

Location: Silvicultural Research Centre, Charaljani of the Bangladesh Forest Research Institute.

Start Date: 00-00-0000

End Date: 00-00-0000

Program Area: Conservation and Biodiversity

Commodity: Eucalyptas

Objectives:

To study the variation of specific gravity from the pith to periphery and from the bottom to top,

Methodology:

Three trees of Eucalyptus teriticornis were collected from the silvicultural Research Centre, Charaljani of the Bangladesh Forest Research Institute. The age of the trees was about 12 years and the average height and diameter were 8.3 m and 0.20 m respectively. Each tree was divided into three equal portions, viz., bottom, middle and top and then one disc of 10 cm thickness was taken from each portion. The samples were selected in three radial distances. viz., pith, intermediate and periphery. Specific gravity was determined on the basis of oven dry weight and green volume. The volumetric shrinkage was determined from the green dimension to oven dry dimension.

Source of Information: Bangladesh Journal of Forest Science, Vol : 21 (1 & 2), Jan-July 1992, 36-39

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The specific gravity increases significantly radially from the pith, but near the periphery it decreases. As the height increases, the specific gravity has been found to increase significantly. The moisture content decreases significantly from the bottom to top, but no definite trend of variation has been found from the pith to periphery. The volumetric shrinkage values vary significantly, but no general trend has been observed.

Knowledge Management: Journal