N. P. Baduni , C. M. Sharma

Abstract

The population structure and community analysis of the Sal-Savanna forest of the Kalagarh Forest Division in the outer Himalaya were studied on four different aspect viz., North-East, North-West, South-East and South-West. The maximum density (500 trees/ha) and maximum total basal cover (32.98 m²/ha) were observed on the SW and NE aspects respectively. The tree diversity range in these forests varied from 0.5029 (on NE aspect) to 1.366 (on SE aspect). The maximum dispersion of tree individuals were seen on SE aspect which has indicated a more stable community comparatively. Due to more biotic and abiotic interference's, the population structure on other aspects has shown a degrading sustainability. The occurrence of grasses growth with Sal under these disturbed climatic condition and heavy biotic interference have represented this stage of retrogression in otherwise climax Sal type and are responsible for the formation of Sal-Savanna forest type.

Full Text

     

Ashutosh Mishra , C. M. Sharma , S. D. Sharma , N. P. Baduni

Abstract

The composition of forest vegetation and community structure of Moist Bhabar and Tarai Sal forest were examined on four different aspects; namely, North-East, North-West, South-East and South-West, in District Pauri Garhwal to understand the growth behaviour of Shorea robusta individuals under different micro-climatic conditions. S. robusta was found dominating on all the aspects with maximum lVI, density, frequency and TBC values and has reflected regular and random distribution patterns. the highest TBC value of this species was recorded on NE facing slope (5009.04 cm²/100 m² ) and the highest Cd value (0.4321) on SW facing slope, where minimum diversity persisted. On the other hand the lowest cd value (0.3115) was observed on SE aspect where maximum diversity existed. The maximum accumulation of organic matter was noticed on NE aspect (average value 1.510.61 %) due to occurrence of mature Sal stand.

Full Text