Growing stock valuation method for calculating the volume of sustainable forest use

Method for evaluating growing stock changing due to changing of age for normal stands of different tree species on the basis of the standard growth tables of major forest forming species of Northern Eurasia is presented. The method is needed to calculate the volume of sustainable forest use by the computer program based on authors’ simulation model of the age structure dynamics of the stand - from initial age classes ("sapling stands") to older age classes ("mature stands"). Presented method can also be used to determine the parameters of tree stands development with a pitch differ from the specified in standard growth tables (10-20 years).