Vol. 10, Issue 12 (2021)

Author(s):
Akanksha Kesharwani, Pratap Toppo, Shalini Toppo and Lalji Singh

Abstract:
The present study on “Biomass and carbon stock in Tectona grandis (Teak) plantation in tropical environment” was carried out at State Forest Research and Training Institute Raipur (Chhattisgarh), during the year 2020-2021. The total tree density in T. grandis plantation was 280 stems ha^-1. The total basal area of tree layer in T. grandis plantation site was 13. 77 m² ha^-1. Total sapling and seedling density in T. grandis plantation site was 47. 5 stems ha-1 and 157. 5 stems ha^-1 respectively. Total abundance for sapling and seedling layer in T. grandis plantation site was 4. 33 and 15. 78 respectively. The Shannon index in T. grandis plantation site for the tree, sapling and seedling layer was 0. 54, 0. 93 and 0. 96, respectively. The simpson’s index for tree, sapling and seedling layer were 0. 21, 0. 49 and 0. 49, respectively. The evenness in T. grandis plantation site for tree, sapling and seedling layer was 0. 78, 1. 34 and 1. 39, respectively. Species richness for tree, sapling and seedling layer was 0. 17, 0. 25 and 0. 19, respectively. Beta diversity in T. grandis plantation site for tree, sapling and seedling layer was 2. 3, 3. 33 and 2. 72, respectively. Total biomass, litter mass and carbon stock in T. grandis plantation site was 73. 71, 9. 4 t ha-1, 31. 62 t ha^-1 respectively. Soil pH, EC, total available nitrogen, available phosphorous, total available potassium and organic carbon in upper soil layer (0-10 cm) of T. grandis plantation site was 6. 18, 48. 5 ds/m, 313. 6 kg/ha, 5. 78 kg/ha 217. 16 kg/ha and 0. 95%, respectively. Soil pH, EC, total available nitrogen, available phosphorous, total available potassium and organic carbon in lower soil layer (10-20 cm) of T. grandis plantation site was 6. 36, 69. 3 ds/m, 288. 5 kg/ha, 5. 7 kg/ha, 141. 3 kg/ha and 0. 86%, respectively. Study revealed the potential of T. grandis in biomass production and carbon storage.