Vegetational diversity along altitudinal gradients in the upper yamuna forest division of uttarakhand, India

The present paper deals with the study conducted in the Upper Yamuna Forest Division of Uttarkashi district in Uttarakhand, India. The different altitudinal ranges varied from 1000-1500m, 1500-2000m, 2000-2500m were covered in this study. A total of 40 common tree species were recorded in 1000 to 1500m of elevation covering 26 families, 26 species in 1500 to 2000m covering 20 families and 14 common tree species in 2000 to 2500m of elevation belonging to 10 families. The decreasing trend of tree species was recorded from lower to higher elevation. The 19 herbs and 21 shrubs species reported in 1000 to 1500m elevation belonging 24 families, 7 herbs and 5 shrubs were observed in the elevation 1500 to 2000m in 11 families and 14 common herbs and 9 shrubs comprising 15 families were recorded in 2000 to 2500m of elevation. The herbal population increased as compare to shrub population from lower to higher elevation.