Changing forest composition is now evident in natural forests of Bangladesh. An experiment was conducted in the natural forest to investigate the existing dominant forest tree species and the new recruitments. The dominant tree species was found in the natural forest as follows: Dipterocarpus turbinatus (40.73%), Anthocephalus chinensis (39.12%), Michelia champaca (21.57%), Cassia fistula (20.52%) and Lagerstroemia speciosa (19.14%). Also, relative abundance of tree species that regenerated in the study area was found as follows: Syzygium cumini (113.08%), Lagerstroemia speciosa (15.56%), Syzygium fruticosum (13.34%), Terminalia belerica (8.89%) and Cassia fistula (6.67%).

However, the natural regeneration of Michelia champaca (21.57%) a dominant tree species was not found. Moreover, Terminalia belerica and Randia dumetorum newly recruited species coming as regeneration in this area. They migrated from different places and found suitable here. Michelia champaca is an economically valuable species with respect to Terminalia belerica and Randia dumetorum. Therefore, a low economic forest zone may be predicted for future, leading a nation poor to poorer. This may conclude the natural forest of Bangladesh those are ecologically and environmentally viable at the present time for future woodland, may not be sustained for the long run due to changing pattern of climate.