Studying the Growth Course of Rough Elm (Ulmus Glabra Huds) in the Bayrachny Oak Grove of the Kashar Forestry of the Rostov Region

Rough elm is one of the main forest-forming species of Kashar forestry of the Rostov region. The aim of the research is to study the changes in the main inventory indicators (height, diameter, volume, increments, etc.) of the rough elm at different age periods. The study of the growth course of the rough elm in the dry bayrachny oak grove is of scientific and practical significance, since this tree species is used for the needs of the national economy not only in the Rostov region, but also in other regions of the Russian Federation. During the study of the growth course of the trunk of the rough elm, the methods generally accepted in forest inventory were applied. Enumerative inventory was carried out on the established trial area and the estimated inventory indicators (height and diameter) of the model tree were determined. After cutting down the model tree, its height, the length of the crown and the branchless trunk were measured, the places of taking cuts were marked in the middle of 2 m sections, at the base of the trunk, at a height of 1.3 m, and at the base of the vertex. In the course of the office processing, the tables of the growth course in diameter, height, volume and increment were compiled, as well as the graphs of the changes of the main inventory indicators in absolute values. The analysis of the data obtained showed that the rough elm has grown steadily over 34 years according to the main inventory indicators (height, diameter, volume), the values of increments vary. The reliability and correctness of the obtained regression equations of the growth course of rough elm (in height, diameter, volume) in the dry bayrachny oak grove is confirmed by the high value of the approximation coefficient (R² = 0.99).

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