K. P. Tiwari , V. Parthasarathy

Abstract

An investigation with three different methods namely Distance method, Fixed plot and Point sampling method for the estimation of basal area and tree count was made in Sal (Snorea robusta) forests of Doon Valley. The population consisted of Sal trees of 20 cm dhh and above. In distance methods the distance upto 6th to 10th tree from a systematically selected sample point was taken as plot size as against 0.1 ha fixed plot size. The results show that 10th tree method and point sampling method are suitable for such moderately clustered populations.

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K. P. Tiwari , V. Parthasarathy

Abstract

Investigations on optimum plot size for tropical dry deciduous forests of East Karimnagar Division Andhra Pradesh was undertaken with three circular plot sixes of 0.05, 0.1 and 0.2 ha on 38 plots in each case. Basal area, volume and tree count were obtained for all the three plot sizes and the SE % were compared. It was found that 0.1 ha circular plot size is optimum from all considerations and is recommended for use in similar forest types for forest inventory purposes.

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