Abstract
Forest vegetation of a community managed forest was studied along four aspects. Quercus leucotrichophora and Pinus roxburghii was the dominant species on each of the two aspects. Across the aspects the total tree density ranged between 193 to 324.3 ind/ha, sapling density between 119 to 258.6 ind/ha and seedling density from 249.98 to 845 ind/ha. The shrub density varied from 199.99 to 406.32 ind/ha and herb density from 9466.66 to 52483.33 ind/ha. The total basal area varied from 0.06 to 7.15 m2/ha at eastern and north facing aspect for Quercus leucotrichophora and Pinus roxburghii respectively showing that the forest is in young stage. Species diversity value for tree layer varied from 0.21 to 1.23 while concentration of dominance value ranged from 0.56 to 0.94. It was noticed that with an increase in species diversity concentration of dominance value decreases indicating inverse relationship between diversity and dominance.
Highlights
The Central Himalaya, accounts for 8.68% of the total Indian Himalayan area (59436 km2) and harbours rich biodiversity due to geographical and geological peculiarities subtending a wide range of vegetation types [1]
Forest vegetation of a community managed forest was studied along four aspects
The total basal area varied from 0.06 to 7.15 m2/ha at eastern and north facing aspect for Quercus leucotrichophora and Pinus roxburghii respectively showing that the forest is in young stage
Summary
The Central Himalaya, accounts for 8.68% of the total Indian Himalayan area (59436 km2) and harbours rich biodiversity due to geographical and geological peculiarities subtending a wide range of vegetation types [1]. The various disturbances present in the area are eroding this rich biological diversity day by day and have led to the expansion of xerophytic conditions [2]. Forests present around the agricultural fields are highly degraded due to continuous anthropogenic disturbances. Villagers frequently graze their cattle in the adjoining forest which influence the pressure beside this accidental fire the main cause for degradations the forest. The exploitive management practices and the biotic stress exerted by hill population in relation to oak species have encouraged the pine in various ways [3]. Various programmmes have been implemented, for the conservation of biological resources in the Indian Himalaya under the protected area network
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