Climate change, caused by global warming, is the most pressing environmental problem of thernworld today and it is a phenomenon partly resulting from abundance of carbon dioxide in thernatmosphere. The problem of increasing atmospheric carbon dioxide can be addressed in a numberrnof ways. One of such actions is forestry development and forest management undertakingsrnthat can contribute to mitigation.This study was conducted in Weiramba Forest, with the objectivesrnof estimating of the carbon stock and its variation along the environmental gradients, determiningrnthe composition, structure, regeneration status and diversity of the vegetation found inrnthe area. A systematic sampling method was used to conduct the vegetation sampling. In order torncollect vegetation data a total of 40 quadrats, each with the size of 10 m x 20 m at an interval ofrn100 m, were laid along the established transects at 200 m apart. For the assessment of seedlingrnand sapling, two sub-quadrats each with the size of 2 m x 5 m were established at opposite sidesrnof the main quadrat. For litter and soil sample collection, five sub-quadrats each with the size ofrn1 m x 1 m were established at four corners and center of every quadrat. Plant Species Diversityrnanalysis was carried out by using Shannon Weiner index and Carbon stock was estimated by usingrnallometric equations.The magnitude of the species diversity and carbon stock relationshiprnwas analysed by using Pearsonâ€™s correlation. Results revealed that the total mean carbon stockrndensity of Weiramba Forest was 323.85 t/ha, of which 152.33 t/ha, 41.13 t/ha, 1.3 t/ha, 63.39rnt/ha, 65.72 t/ha was contained in the above ground biomass, below ground biomass, litter biomass,rnsoil (0-20 cm depth) and (21-40 cm depth), respectively. Altitudinal gradient, slope andrnaspect were the three environmental factors that affect the different carbon pools of the forest. Arntotal of 32 species representing 28 genera and 20 families were recorded in the forest. ThernShannon Weiner diversity index and evenness were resulted to be 2.30 and 0.66, respectively.rnThe plant species diversity and carbon stock relationship was small or weak positive. The populationrnstructure revealed in diameter and height class frequency distribution was to be Bellshapernwith very high decrease towards the lower and higher diameter and height classes. Therntotal basal area of the forest was 32.10 m2/ha. The population structure of woody plants and thernregeneration status in the forest revealed that there is a need for conservation priority for speciesrnwith poor regeneration status. From the point of view of managing forests for climaternchange mitigation and biodiversity conservation, the result suggested that the forest should bernconserved and protected in a sustainable way for further carbon sinks and biodiversity conservation.rnKey words: Wiramba Forest, Environmental variables, Carbon stock, Diversity, Forest structure