Species description of vegetation of protective forest strips on the farm of UNPAK LNAU "Kolos"

In recent years, there has been a tendency to destroy trees in forest belts and their natural aging. Therefore, the problems of preserving and protecting forest belts from destruction remain very relevant today. The purpose of the work is to study the species composition of forest belts on the farm of UNPAK LNAU "Kolos" and the analysis of tree species for their resistance in phytocenosis. The object of research is field-protective forest belts. The main species in all three studied bands is the common ash, which forms the first layer of the forest stand. The shrub layer is represented by common caragana and Tatar honeysuckle (third layer). To study the Kraft class and the quality score, three shelterbelts were selected, in which two to four trial plots were described. In each area, the number of trees was at least 200 pieces, with the exception of some sites where the tree stand fell out of the plantation. The authors found that on the fourth trial plot of the third forest belt, the indicators of the Kraft class in the forest stand were distributed as follows: the largest number of trees of common ash and Tatar maple was marked with class IV-a. Thus, in forest belts, there is an uneven distribution of trees according to dominance classes. This is due to the fact that forest belts are a forest phytocenosis in which there is intraspecific competition for a nutrient resource. The herbaceous vegetation of shelter belts includes 70 species of weeds belonging to 2 groups - Monocots and Eudicots. The Monocots group is represented by one family, Poaceae, and includes 5 species of weeds (7,1%). The Eudicots group includes 65 plant species (92,9%) belonging to 19 families. The most numerous among weeds were the following families: Asteraceae (21 species), Brassicaceae (8 species), Fabaceae and Lamiaceae (6 species each).