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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:

The composition and diversity of native tree species of Moulvibazar natural forests of
Sylhet Forest Division were investigated. A total of 1,051 individual stems having dbh of & 5cm
were recorded from 1.44 ha sampled area. These comprise 81 native bee species belonging to
59 genera under 33 families. Moraceae and Euphorbiaceae dominated in the Study area
containing 9 and 8 species respectively followed by Rubiaceae (7), Myrtaceae and Vefbenaceae
(6 species each). Average species diversity was 3.4L) and ranged from 3.21-3.61 in the studyarea. Species similarity index was highest (69.72%) between Lawachara and Adampur followed
by Adampur and Gubindapur (65-4%) and lowest (62.7″i>) between Lawachata and Gi’bindpur.
Tree density was found 573 stems ha’1 in Lawachara, 860 stem ha J in Adampur (Kalengi) and
756 stems ha”1 in Gobindapur. Artoccrptts eftawa showed the highest (32,63 m2) basal area rn
Lawadiara followed by Liigerstrarraiir ptiroi/tara (6.98 tn2) and Cliiikrirsir wfiittW (5.74 m2), but in
Adampur maximum basal area showed by fyzygitiNrJinwiV (2.39 in2) followed by Artorpirs
c/jfijrju (2,04 m2), CasfaiJcpsrs tribidordea (1.24 m2), while in Gobindapur, meximam basal area
recorded for ftotrnirpre; vnnnwit (1.31m2) followed by Atia.’fltpits dtaitm (1.(34 m2) and l/tiex
ptfesrrns (0.82 m2). Highest Importance Value Index (TV!) in Lawadiara natural forests was
86.92 for Arhymprrx ttaw followed by I ngeralnriuin ptinriflwa (29.53), Chukraiia ivlutina fl5-11},
but in Adampur Sy^iunj firmum attains the highest IVI (39.92) followed by Casfimppsts
fribdoitfcs (17.62), Artomrpns dmjjir (17.46), Lagerstroemia pantiflom (15.62) and Efa’ocnrpws
rrjrjrjjir (15.41), while, in Gobirtdapur, the highest IVI was recorded for FforciTtfpjis uantmtf
(22.32) followed by Vita pubescetts (15.06) and Si/zygititti[omasum (14,71

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