Estimation of biomass and carbon stock of Quercus incana and their effect on insect population in Barawal valley of district upper Dir

Abstract

The present study carried out in the Barawal valley of District upper Dir. In this study the growing stock (m3ha-1), biomass (t ha-1) and carbon stock (t ha-1) of the study area were estimated through field inventory. For the determination of biomass volume of the tree were calculated and for the estimation of volume (m2ha-1) tree height (m) and diameter (cm) were estimated. After that stem biomass (t ha-1) total biomass (t ha-1) and carbon stock (t ha-1) were calculated. Diameter class (cm) in the study area range from 6 to 74 cm, and density (tree ha-1) range from 1 to 38 trees ha-1. Average tree height (m), basal area (m2ha-1) and volume (m2ha-1) were 5.7, 15 and 54 respectively. The total estimated stem biomass (t ha-1) of the study area was 38 (m2ha-1) and tree biomass was 59 (t ha-1). The estimated carbon stock (t ha-1) in the study area ranged from 4 to76 t ha-1 and its average was 29 t ha-1.