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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 paper gives the experience of a tour study in the Sundarbans forest by
the author and Dr. Hubert Hcndrich, a West German Zoologist during 1970. It
also deals with the present status of wildlife population in Bangladesh. Some hints
have also been given regarding suitable sites for recreational purposes in Bangladesh

Abstract:

There are more than 500 tropical hardwood species and a number of grass
and bamboo species in Bangladesh. Only a handful of these are, at present, used
for the manufacture of pulp, paper, fibreboard and rayon. Sundri and gewa of the
Sunderbans and a number of hardwood species of the Chittagong area are used
for the manufacture of paper and fibre boards. Rice straw and bagasse are also
used for the same purpose. Besides, some bamboo species of the Chittagong Hill
Tracts and three grass species of Sylhet district are, at present, used for the manufacture
of pulp and rayon. Most of the other minor hardwood and grass species
have practically no industrial use.
In this study, 20 minor hardwood species and 20 grass species of Bangladesh
have been taken up with a view to determine their suitability for the manufacture
of pulp. Runkel ratio, flexibility co-efficient and relative fibre length have been
found out from the fibre length, fibre diameter, cell-wall thickness and lumen
diameter of the fibres. From those data the tensile strength, tearing resistance and
general suitability of the fibres for the manufacture of pulp and paper could be
estimated. From the Runkel ratio obtained, it can be predicted that most of the
species under study will be suitable for the manufacture of quality paper. Only
Kannari and Jaikkagola among the wood species, daloo and lata bans from the
bamboo species and nal, ikra and khagra among the grass species are likely to
yield moderate quality pulp.

Abstract:

In Bangladesh the Tropical Moist Deciduous Sal Forests were studied in Madhupur
Garh. Sal (Shorea robusta) has got a density of 87 trees out of the total
233 trees per acre. The basal area of sal is 56 sft per acre (that is 48.7% of
the total) and it has got a 100% frequency distribution.

Abstract:

The paper explores the statistical ground of preparing forest working plans and
provides a tentative list of required data and studies. It is observed that the
insufficiency of required data and lack of studies have resulted in serious shortcomings
in the present working plans of Bangladesh. The targets are not found to be
established on an analytical basis and the prescriptions and programmes do not
reflect the true requirements of the economy. Thus the plans are not consistent
with the objective of producing the maximum contribution to the society. In order
to improve the quality of the working plans it has become urgently necessary to
develop forestry sector statistics in Bangladesh. The paper suggests steps for accelerating
developments in this respect. The steps are concerned with institutional
changes, provision of adequate field staff and funds, organising training programmes
and formulation of a plan for statistical development by the Working Plans Division
of the Forest Department in close co-operation with the Planning Commission
and the Forest Research Institute.

Abstract:

The furniture and joinery industries of Bangladesh mostly use manual labour
and hand tools both in manufacture and in surface finishing. Modern woodworking
machines have been introduced on a very small scale in the recent past, but
they have not met with much success due to the lack of proper technical know-how
and trained personnel. These industries are expected to expand. As the general
economic conditions improve and per capita income rises, there will be need for an
increased production of furniture and joinery.

Abstract:

An investigation was made to determine the possibility of making sulphate pulp
from rubber wood {Hevea brasiliensis). The pulp obtained was low in yield and the
permanganate number was very high ranging from 12.35 to 24.44 predicting a high
bleach requirement. The physical strength properties of the pulps were moderate.
Rubber wood pulp showed promise to be used for making moderate quality wrapping,
bag and average quality printing papers.

Abstract:

Jam (Syzygium grandis), because of its availability and strength properties,
was considered for substituting garjan ( Dipterocarpus spp. ) for making railway
sleepers. Since treatment with creosote is normally the part of the manufacturing
process for railway sleepers from nondurable wood, jam heartwood was treated
with Lowry empty cell process using 40 ; 60 creosote-petroleum oil preservative in
order to develop a treating schedule for jam sleeper. Treatments were performed
with the various combinations of treating schedules with or without the pretreatment
ot steaming-vacuum or incision. None of the treatments, however, could
achieve penetration and retention recommended for the purpose of railway sleepers

Abstract:

This paper clearly shows that propagating bamboos from material
other than seed is possible. Propagation of bamboos from offsets is well
known and practised in village groves. The development of planting material
from branch cuttings is a two-stage operation. The first is the striking of roots
and the other, the development of a rhizome. Getting vigorous rooted stock is not
enough because this does not always develop rhizomes ; for this the biological
condition of the buds is very important. In bamboos, successful planting
material must have all the characters of growing clumps, the most important of
which is the production of new culms. Though offsets are a good propagating material,
these are not suitable for large scale plantations due to handling difficulties,
long branch cuttings with swollen basal nodes and 2-3 branch nodes
physiologically similar and can be made
branch
18-20 inch
are morphologically and to function
like the offset in suitable conditions. Such cuttings develop into
good planting material in 6-30 months, depending on the biological condition
of the cutting and the period of the year when the cuttings were taken.
The superiority of the branch cutting over the offset is in the fact that it is easy
to raise, economic to produce, and convenient to transport. At the moment the
percentage of success is low, and further research in the factors governing the production
of planting material from branch cuttings is necessary.This paper clearly shows that propagating bamboos from material
other than seed is possible. Propagation of bamboos from offsets is well
known and practised in village groves. The development of planting material
from branch cuttings is a two-stage operation. The first is the striking of roots
and the other, the development of a rhizome. Getting vigorous rooted stock is not
enough because this does not always develop rhizomes ; for this the biological
condition of the buds is very important. In bamboos, successful planting
material must have all the characters of growing clumps, the most important of
which is the production of new culms. Though offsets are a good propagating material,
these are not suitable for large scale plantations due to handling difficulties,
long branch cuttings with swollen basal nodes and 2-3 branch nodes
physiologically similar and can be made
branch
18-20 inch
are morphologically and to function
like the offset in suitable conditions. Such cuttings develop into
good planting material in 6-30 months, depending on the biological condition
of the cutting and the period of the year when the cuttings were taken.
The superiority of the branch cutting over the offset is in the fact that it is easy
to raise, economic to produce, and convenient to transport. At the moment the
percentage of success is low, and further research in the factors governing the production
of planting material from branch cuttings is necessary.

Abstract:

The numerous islands constituting the littoral
forests of the Sundarbans have been formed by
river-borne silts of the Ganges and the Brahmaputra,
the two main rivers of Bangladesh. The
forests lie between latitudes 21°30’N and 22°31’N
and between longitudes 89°E and 90°E.

Abstract:

The Bangladesh Energy Study, sponsored by the Planning Commission and
published a year ago, reviewed the estimates and surveys made of fuelwood
consumption and requirements in the country. It concluded that the consumption
of domestic firewood and other forms of vege.tativc fuels is unknown.
Since the use of wood as fuel far exceeds other uses in volume
importance a proper study is now considered necessary.
The paper describes the main physical, economic and statistical determinants
of fuelwood consumption in Bangladesh. It proceeds to describe survey methods
and strategy for determining this statistic. Supply estimates are then briefly
described.

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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.