БУДОВА ТА ТОВАРНА СТРУКТУРА СТИГЛИХ МОДАЛЬНИХ ДУБОВИХ ДЕРЕВОСТАНІВ НАСІННЄВОГО ТА ПОРОСЛЕВОГО ПОХОДЖЕННЯ ЛІСОСТЕПУ УКРАЇНИ
The structure parameters are calculated by measuring the diameter of the ripe modal oak stands of different origin and thickness. On their basis the series of trunk distribution by diameter were built, using beta-distribution. Thereafter, the commodity guidelines were composed for these categories of tree stands using the above-mentioned series and pre-designed assortment tables. A gradual transition from the vegetative to the seed economic section is then proposed, as the latter one possesses a better quality structure.