Abstract
The study described composition diversity, present growing stock and quantitative structure of tree species of Tilaghor Eco-Park, Sylhet, Bangladesh. A stratified random quadrate method was used to study the tree species having diameter at breast height. Diameter at breast height (dbh) and a height were measured. This study identified 27 species of 18 families. The family Combretaceae, Leguminosae, Moraceae dominants containing three species. The number of stems per hectare and basal area per hectare of trees were 1678 and 129.1 m2 respectively. Most of the trees 291 out of 504 belong to the diameter class of ≥29 cm. Most of the trees 120 out of 504 belong to the height class of 13-16.99m. The highest density (tree/100m2), highest frequency and abundance were found in Shorea rabusta Gaertn (6.53)(and Dipterocarpus turbinatus Gaertn (70) and Shorea rabusta Gaertn (9.8)) respectively. The highest relative abundance Shorea rabusta Gaertn (15.9) relative frequency Dipterocarpus turbinatus Gaertn (20.19 and relative dominance Shorea rabusta Gaertn (37.25).The highest Importance Value Index is carry out by Shorea rabusta Gaertn (95.37), The Shanon-winner index, diversity index, species richness index and species evenness index are 1.8, 0.053, 9.62 and 1.25 for trees respectively. Species composition of the Tilagarh Eco-park which is not only suitable as economic but also enriches the biodiversity situation in the local to national arena.
