Author(s):

Aditya Mohapatra, Dr. Nirakar Bhol and Manas Ranjan Kar

Abstract: An analysis of soil physico-chemical properties and growth parameters under some dominating vegetations was done during July 2018 - June 2019. The experiment was laid out in a Randomized Block Design having seven naturally dominating tree species such as Shorea robusta, Tectona grandis, Mallotus philippensis, Xantolis tomentosa, Acacia nilotica, Bambusa bambos and Bambusa bambos (Dwarf) with three replications. The analysis revealed that soils under Acacia nilotica possessed highest bulk density (1.42 g/cm³) whereas Mallotus philippensis had lowest (1.27g/cm³). Particle density of soil under Xantolis tomentosa was recorded highest (2.61 g/cm³) while Bambusa bambos (Dwarf) registered minimum (2.44 g/cm³). Maximum pH and electrical conductivity were resulted under Acacia nilotica (8.20 and 0.045 dSm^-1 respectively) whereas minimum pH under Shorea robusta (5.89) and minimum EC under Bambusa bambos (Dwarf) (0.005 dSm^-1). The soil organic carbon under Bambusa bambos claimed highest (13.85 g/kg soil) while Shorea robusta secured minimum (5.44 g/kg soil). With regard to growth, Tectona grandis excelled in height (37.35m) whereas Bambusa bambos (Dwarf) achieved minimum height (3.95 m). Average clump diameter of Bambusa bambos was significantly higher (108 cm) and lowest value (12.61 cm) was recorded under Xantolis tomentosa. Bambusa bambos generated highest basal area per hectare (47.53 m²/ha) while Xantolis tomentosa registered the lowest (2.27 m²/ha). The results indicated that dominance of different vegetations within the same climatic condition is due to variation in soil properties and those properties should be taken into account for recommending the suitable species for a particular site.

DOI: 10.22271/phyto.2020.v9.i4f.11726

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