This study reviewed the literature sources on the distribution of trees by diameter and an estimation of the commodity structure of alder stands in the Slobozhanskyi forest typological district and Ukraine as a whole, and the relevance of this paper was established. Forest typological and forestry zoning were compared to identify the region under study more clearly as a prerequisite for creating regional standards for forestry management. The distribution of black alder in the forest fund of the region under study was analysed, and forest inventory indicators were investigated in areas near alder stands. The distribution of black alder stands in the region by origin, forest types, density, and productivity was established. The authors considered the inventory and commodity structure of black alder stands in the conditions of the region under study. Models of the variability of the diameter of the modal tree stand, the ratio of the variability of the commercial part to the total variability of the tree stand diameter, considering the minimum and maximum diameters in the modal stand, were calculated. The dependence between the proportion of commercial trunks and the age of modal alder stands of vegetative origin was established. Tables of the dynamics of the commercial structure of modal alder stands were constructed, considering the distribution of commercial trunk volumes by thickness classes and subclasses, consistent with European approaches to round timber inventory. Upon drafting the standards, previously developed standards for the growth rate of modal alder trees of vegetative origin of the Slobozhanskyi forest typological district were applied. A comparative analysis of the dynamics of commercial wood yield in modal alder stands according to various standards was performed. According to the results of comparing the standards developed for Slobozhanskyi forest typological district with those developed for the whole of Ukraine, it was found that the latter have a substantially higher yield of commercial timber, which is primarily connected with the forest-growing conditions of the region and the vegetative origin of tree stands
modal stands, black alder (sticky), marketability, thickness classes