Thus, to calculate the annual carbon sequestration, we added the average annual diameter growth (0.61 cm ) and the average height growth (15 cm ) to all trees. The above-ground and below-ground biomass of the trees were calculated using the equations in step. 2. The amount of tree biomass that converted to the sequestrated carbon was estimated per year by using the equations in step 3. Finally, the results of this step (annual carbon sequestration in above-ground and below-ground biomass) were subtracted from the value in step 3. The result value is the amount of annual carbon sequestration in each tree.