Growth Course and Condition Features of Lanceolate Ash (Fraxinus Lanceolata) Analysis in the Dry Oak Forest of the Rostov Region Conditions

The study of the lanceolate ash growth in the dry oak forest of the Rostov Region conditions has scientific and practical significance, since this tree species is one of the main forest-forming species of the Kashar forestry. To date, forestry does not have data on the lanceolate ash growth in the natural forests of the Rostov Region steppe zone. This fact has determined the importance of this topic. The purpose of the research was to study the taxation indicators and lanceolate ash situation in dry oak forest conditions. The methods generally accepted in forest taxation were used. Tables of the ash growth course in diameter, height, volume and increment were compiled and regression equations of dependence on the above indicators were obtained based on the results of the research. Assessing the lanceolate ash situation in pure and mixed plantations, we came to the conclusion that with equal mixing in the composition of oak and ash tree species, the plantation is characterized as severely weakened, and pure and mixed plantings with a predominance of lanceolate ash are characterized as weakened. It was revealed that the optimal mixing in the dry ravine oak forest of the Rostov region conditions is 4Дч(oak)6Яз(ash).