Quantitative analysis and regeneration status of forest trees species in Kumaun Central Himalaya

The aim of the present study was to assess the diversity and regeneration status of three dominant forest types located between 413 and 2345 m in the Kumaun Himalaya. Quadrats methods was used for phytosociological analysis and assessment of regeneration status was based on seedling, sapling and trees density.The total tree density varied between 140 and 617 ha⁻¹ in sal dominated forest, 295 and 855 ha⁻¹ in chir-pine dominated forest and 245 and 555 ha⁻¹ banj oak dominated forest. The value of species diversity (H’) was between 1.62 and 2.39 for tree layer in sal dominated forest. The H (r² = 0.96) and CD (r² = 0.91) were correlated positively with density of trees in banj oak dominated forest. The relative proportion of seedling varied between 38.89 and 67.35% Shorea robusta, 47.89 and 53.33% of Pinus roxburghii and 33.33 and 43.64% of Quercus leucotrichophora forests.