BANGLADESH JOURNAL OF FOREST SCIENCE
A Half-yearly Peer Reviewed Journal of Bangladesh Forest Research Institute
A Half-yearly Peer Reviewed Journal of Bangladesh Forest Research Institute
The seminar was sponsored by the Food & Agriculture
Organisation and the International Labour Organisation of the
United Nations, and hosted by the Forestry Agency of the Government of Japan. 13 countries of Asia and the Far East .participated in the Seminar with 26 participants. The primary object of
the Seminar was to introduce improved forest working technique
and the training of forest workers in the countries in Asia and
the Far East. While in Europe, U.S.A., Canada and other developed countries substantial progress has been made in introduction of improved forest working technique and training of forest
workers in various specific jobs, many of the developing countries could not substantially contribute in these lines. The
importance of introduction of improved techniques in forestry
. operation and the vital role played by the workers in making it
a success, cannot be over emphasised. Pakistan like many other
developing countries could not yet introduce the improved forest
. working techniques and the forest workers’ training in the r£al
sense of the term. The training programme in Pakistan is at present limited to the supervisory staff of Forest Department.. No
step has yet been taken to train the forest workers to obtain
the maximum benefit.
The study tour on forestry research was sposored by
FAO in connection with the UNDE assistance to Forest Research
Institute, Chittagong, (Project Pak 30). The object of the
study tour was to enable the counterpart traveller to obtain
up-to-date knowledge on the methods used in forestry research
which may be applicable to silvicultural research in East
Pakistan. Necessary contacts, with the forestry research orgaForestry Department of FAO.
Forest research does not in general-require sophisticated
techniques and elaborate equipment • It does, however, more
often than not require considerable time and considerable space.
One of the effects of the sheer size of forest research
projects is that the planning and scheduling of research
procedures over time become important • It may also become
a difficult task •
Most of the tropical hardwoods contain silica
e
and other minerals more or less. Sawing of these timber
species is sometimes very difficult, since the cutting edges
of the saw teeth blunts quickly. Due to this sawing difficulty some of the timber species of the forest remain unutilised and are never brought to profitable use. Sometimes the
rate of dulling of the teeth is so high that time and labour
consumed in preparation and sharpening of the blades turn
into sheet waste. So, attempts to coat the cutting edges
of the saw teeth with
Bleaching studies were conducted on the semichemical
pulp prepared’ from thei_mixture of 8(eight) minor hardwood
species-namely Itchri (Anogeissus acuminata), Amra (bpondias
Pinnata) , Barta (Art oca rpus lakoocha), dhamphata {Eapium baccaturn) , Gu
Pulping experiments have been conducted on Ekra
(Erianthus Ravennao), Khagra (Saccharur Spontaneum) and Nel
(Phragmites Karka) – three gross species of Sylhct District
of East Pakistan for the manufacture of writing, printing,
wrapping and special types of papers. The grasses were cooked
individually and in various percentages of mixtures’. Effect of
the presence and absence of’ leaves during cooking have also
been studied.
ABSTRACT.
Albizzia is a very fast-growing hardwood species. Albizzia Procera
is used for furniture making and is being cultivated in the forest •
Albizzia Moluccana is planted in the tea gardens as a shade tree •
Hardboards have been made from the two species individually and in a
50:50 mixture • Individually Albizzia Procera gives a better board than
Albizzia Moluccana • The mixture of the species yields a good quality
board, though a little inferior to the Albizzia Procera boards. The
strength properties were comparable to those of other boards made from
various tropical hardwood species. The water resistance properties were
moderate which improved but little on simple /— -treatment. Oil tempering,
however , improved the water-repellancy greatly •
FAST HISTORY
Mexico, Peru and Brazil, the plant
realise the economic importance of this plant and only from world
war II, plantations of this species came into realization in India* The
large -scale plantations were initiated in southern India, Orissa,- Bambay
and West Bengal. Simultaneously the processing industries also- -came up
and’as a result India became virtually the monopoly holder in the export
market of Cashewnut and other by-products out of this plant. During
1951, India earned 19 million dollars by export of cashewnut and other
by-products whereas during that year the earning from tea was only 16
million dollars. By now India’s earning of foreign exchange on account
of cashewnut and by-products has gone well over 35 crores.
“-The^economiq. development of a country or a region
is basically a question of increas^bL^roductivity.. The history
of especially the; last two centuries shows a spectan-H-lar ‘ ‘
and in each field of economic activity~we will.
find planned and. unplanned efforts to induce a change..Forestry
…makes no. exception. Although progress here, has been less marked
than in the manufacturing industries, there has-been a steady
growth of productivity-In all countried-where a regular-forest
management has superseded the extractive – and partly destruc-
, tive * practices of earlier times. With the particular^ atrueture ^
of .reproductive forestry we can conceptually distinguish-between.’.
a.growth of the productivity of land (yield per acre) and the
– productivity of labour (output per man-day.)
B
SUMMARY:
A study on the.succesion of species in the clear felled
areas of tidal forests of the Sunderbans revealed that the
clear felled area was filled up by Gewa and Sundri within 2-3
years of such felling. Gewa was found to be the first coloniser
followed by Sundri. On.avera^e, the percentages of occurance
of Gewa & Sundri had been found-to be 55 & 27 respectively.
Sundri followed Gewa in height growth in first 10 years
formed a co-dominent associate while the dominating species
Gewa attained the average height of 15′ in 10 years’ time with
a b.h diameter of 3” •
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.
