Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

STRUCTURAL COMPOSITION AND DIVERSITY OF TREE SPECIES IN MADHUPUR SAL AND LAWACHARA FORESTS OF BANGLADESH (Pages : 41 - 47)

The study describes the community structure and diversity of tree plant species in two national forests of Bangladesh based on a random stratified circular sampling method. A total of 102 tree species (tree, sapling and seedling) was recorded in Madhupur sal forest and 78 tree species (tree, sapling and seedling) in Lawachara forest. Moraceae was the largest tree family in both the forests. The species Shorea robusta had the highest density (306.38 trees/ha), frequency (100%), abundance (7200 plants/ha), A/F ratio (72), IVI (54.51), H (0.1568), TBC (93.78 m2/ha), EC (173.76) and Cd (0.195) in Madhupur sal forest. In Lawachara forest, Artocarpus chama was the dominant tree species having the highest density (100 trees/ha), frequency (95.46%), IVI (30.17), H (0.1352), TBC (109.75 m2/ha), EC (36.28) and Cd (0.0338), and the highest A/F ratio (22) in the species Michelia champaca. On the other hand, the species Elaeocarpus floribundus represented the highest abundance rate (116.667 plants/ha). About 27 tree species were recorded as endangered in Madhupur sal forest, which had minimum or no regeneration. The species Bridelia retusa, Diospyros cordifolia, Leea macrophylla, Pterospermum acerifolium, Spaeranthus indicus, Stereospermum suaveolens, Erythrina variegata, and Hopea odorata had no regeneration and that area was seriously depleted in the Madhupur sal forest. Some 25 tree’s species were recorded as endangered in Lawachara forest which had minimum or no regeneration. The species Hyndocarpus kurzii, Illex godajam, Elaeis guieensis, Castanopis tribuloides and Litsea glutinosa had no regeneration and that area was seriously depleted in the Lawachara forest.Download