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Source
Indian Forester, Vol 136, No 7 (2010), Pagination: 943-950
Abstract
The present paper highlights the dominance, diversity and species richness of tree species along an altitudinal gradient of Mandakini catchment of Garhwal Himalaya. A total number of six forest stands were selected along an altitudinal gradient of Mandakini catchment. The study revealed that Density (trees/ha) and Total basal area (m2/ha) values of the selected stands ranged between 2084 and 600 trees/ha and 53.44 - 29.36 m2/ha. Maximum density 2084 trees/ha recorded for the forest stand IV and minimum 600trees/ha for stand VI of Mandakini catchment. All the selected forest stands of the catchment area could be designated as broad-leaved mixed temperate forest. Rhododendron arborium is the common species in all the selected stands of the catchment except the forest stands III and Stand VI. Shannon-Wiener diversity index ranged between 1.16 and 1.66. Concentration of dominance showed reverse trend to diversity index. Heighest number of tree species (6) was recorded in forest stand V and I. Stand III and VI are the most similar sites of the study area.
Keywords
Mandakini, Catchment, Diversity, Density, Importance Value Index