The Composition and Characteristics of the Dendroflora in the Transformed Conditions of the Middle Reaches of the River Khoper

Green plantings of the cities perform a number of important functions which provide ecological needs of cities population for a healthy surrounding medium, and his needs for communication with wildlife. The comparative analysis of species of wood plants of the towns of the Voronezh region (Borisoglebsk and Novokhopersk) was carried out. 110 types (to Borisoglebsk) and 91 species (to Novokhopersk) species of trees and bushes are registered. The systematic structure which showed a dominance of angiospermous plants that in general is characteristic of the urbanized territories. The range of geographical elements is presented by three types (European-West Asian – 35% and 40%, European – 30% and 26%, North -American – 14% and 21%). The prevailing life forms of the cities are trees, they make 56% and 60% respectively. Researchers showed, in the cities of east part of the Voronezh region many types of various origin can grow that helps to solve problems in gardening, afforestation and an agrarian and forest melioration, in creation of dendrology nurseries for the purpose of maintaining a genetic variety and the subsequent introduction of wood plants and bushes in culture.