5. 2. Tropical evergreen and semi-evergreen forests:Tropical evergreen and semi-evergreen forests are extended over Chittagong, Cox’s Bazar, Chittagong Hill Tracts and Sylhet totaling an area of 6,70,000 hectare which is 4.54% of the total landmass of the country and 44% of national forest land. Depending on topography, soil and climate this area are categorized as i) Tropical wet evergreen forests and ii) Tropical semi-evergreen forests.
The hill forests are abundant with numerous plant as well as animal species. Some important flora are Garjan (Dipterocarpus spp.), Chapalish (Artocarpus chaplasha), Telsur (Hopea odorata), Tali (Palaquium polyanthrum), Kamdeb (Callophyllum polyanthum), Uriam (Mangifera sylvatica), Jarul (Legarstromia speciosa), Civit (Swintonia floribunda), Toon (Cedrela toona), Bandorhola (Duabanga grandiflora) etc. Moreover there are bamboo, cane, climbers and fern etc. in these forests.
These forests are brought under plantation programme since 1871. At present, plantation activities are being conducted under development projects. Some valuable plantation species are Teak (Tectona grandis), Gamar (Gmelina arborea), Mehogani (Swietenia spp), Chapalish (Artocarpus chaplasha), Jarul (Legarstromia speciosa), Koroi (Albizzia spp), Chikrassi (Chikrassia tabularis), Pynkado (Xylia dolabriformis), Kadam (Anthocephalus cadamba), Telsur (Hopea odorata) etc.
The latest forest inventory shows that a total of 23,93 million cubic meter forest products are available there. Among the mammals Elephant (Elephas maximus), monkey (Macaca mulatta), Wild Boar (Sus scrofa), Barking Deer ( Muntiacus muntjak), Samvar (Cervus unicolor), and Indian Leopard (Panthera pardus). Among the reptiles King cobra (Ophiophagus hanna) Monitor Lizard (Varanus salvator) and Bengal Monitor Lizard (Varanus bengalensis) are remarkable
5.3. Tropical moist deciduous Forests:The Central and northern districts covering an area of 1,20,000 ha about 0.81% of the total landmass of the country and 7.8% of the country’s forest land are bestowed with Tropical Moist Deciduous Forests. This forest is intermingled with the neighboring settlements and fragmented into smaller patches. Sal (Shorea robusta) is the main species there with other associates like Koroi (Albizzia procera), Azuli (Dillenia pentagyna), Sonalu (Cassia fistula), Bohera (Terminalia belerica), Haritaki (Terminalia chebula), Kanchan (Bauhinia acuminata), Jarul (Lagerstroemia speciosa), Jam (Syzygium spp) etc.
A recent forest inventory encountered that 3.75 million cubic meter wood available in the sal forests. Presently participatory forestry programmes are being implemented here under the social forestry initiatives. Among the mammals, Jackel (Canis aureus), Monkey (Macaca mulatta), Wild cat (Felis chaus) etc. are found there and among the reptiles Bengal Monitor Lizard (Varanus bengalensis) and common cobra are remarkable.