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    Abstract

  • Soil organic carbon (SOC) is an important index of soil quality and has numerous economic as well as ecological implications in terms of trading carbon credits, water resources, and achieving food security. In this context, a research work was conducted in different sal forest areas of Bangladesh to assess the SOC stock and forest biomass carbon density. Walkley and Black’s wet oxidation method was used for analyzing SOC concentration and allometric equations related to sal forest was used for computing forest biomass carbon density. This study showed that the bulk density (BD) of soil in a profile (up to 60 cm) increased and the SOC concentration decreased with increasing soil depth at different locations of sal forest area. The SOC stock was found higher in the sal forest area of Dokhola Forest Range (48.59 t/ha) and lower in the Bhawal National Park (32.88 t/ha) at 5% level of significance. This study also showed that there was no linear relationship between BD and SOC stock but was found linear relationship between SOC stock and SOC concentration among the locations. The total carbon stock density in the sal (Shorea robusta) dominated forest area was found to be    330.30 t/ha in the Kotbari sal forest area while it was 281.46 t/ha and 207.10 t/ha in the Dokhola Forest Range and Bhawal National Park respectively.

    Keywords

  • Allometric equation, biomass carbon, bulk density, sal forest, soil organic carbon stock

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