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BANGLADESH JOURNAL OF FOREST SCIENCE

A Half-yearly Peer Reviewed Journal of Bangladesh Forest Research Institute

ISSN - Print: 1021-3279 | Online: -
Abstract:

This work includes the determination of moisture content, bulk density, shrinkage, drying properties and strength properties of Coconut wood. It also incorporates some of the findings of other countries. All the properties indicate that Coconut wood offers an excellent possibility of its use in round form as well as in converted form. The strength values of Coconut wood suggest that it can provide necessary materials for low cost housing. The lower part of the bole may be used for making furniture and utility items, while both sawn and round wood may be employed for transmission poles and posts. Thus Coconut wood may serve as an alternative to wood-raw material.

Abstract:

Tiger population of the Nilkamal Sanctuary was studied in 1982. The population size was determined by studying the pugmarks and faeces. Information was also collected from local people and forest staff. The total number of tigers in the Sundarbans is estimated to be at best 460.

Abstract:

Sundri (Heritiera fomes) poles were treated with 40 : 60 creosote and light diesel oil mixture at different pre-designed combination of treating pressure and treatment time to evaluate the response to the individual as well as combined action of these process variables. It was found that the effect of treatment time was statistically highly significant in increasing the penetration of preservative into the sapwood while the treating pressure could increase the same only significantly. On the other hand, both the treating pressure and the treatment time had highly significant effect on increasing retention of preservative in the sapwood.

The coefficient of variations of penetration and the coefficient of variations of retention within the individual poles were in the range of 2.14 to 22.56 percent and 2.15 to 14.75 percent respectively. The same for among the poles were 30 and 23 percent respectively. The variation in these characteristics of the pole, however, could not be considered disadvantageous because the penetration and the retention were directly correlated with the thickness of sapwood zone in the poles.

Seasoned Sundri pole without being subjected to any pretreatment conditioning could be treated to achieve 2.85 cm penetration and 373.22 kg/m2 retention in the sapwood after using a treating schedule of 10.55 kg/cm2 treating pressure and 6 hours treatment time. This amount of penetration and retention may be considered adequate for poles to be used in power transmission line in Bangladesh, as these are well above the minimum recommended in the Bangladesh Standards for penetration and retention for such use.

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Welcome to the Bangladesh Journal of Forest Science (BJFS) – a leading platform for advancing the knowledge and understanding of forest science in Bangladesh and beyond. Established with a commitment to excellence, BJFS serves as a cornerstone for researchers, practitioners, and enthusiasts dedicated to the sustainable management and conservation of forest ecosystems.