THE CONDITION OF FOREST BELTS OF OAK IN STANICHNO-LUGANSK DISTRICT, LUHANSK REGION
On the territory of many districts of Lugansk region (Ukraine) forest-shelter belts are overgrown with undergrowth, shrubs, trees are overhung above the field’s edge, these conditions loosen the protective value of forest-shelter belts, hamper the using of section of farmlands. In this regard, it implies the need of making inventory of forest-shelter belts. Therefore the research purpose was to study the space structure of forest-shelter belts involving English oak (Quercus robur L.). The tasks were set to achieve the following purpose: to determine the species composition of tree and shrubbery vegetation, planting density of forest stand; to accomplish the distribution of forest stand according to the Kraft tree dominance class; to settle the stand formula for currently. The examined forest-shelter belt is situated in the Stanichno-Luganskiy district in the vicinity of Chuginka village (it is 67 km from Lugansk along the road) in Stanichno-Luganskiy district Of Ukraine. The description of the permanent sample plot was made according to the common foresters and geobotanical technics. The tree diameter was measured with standard measuring stick; the hight was measured with optical altimeter Suunto Clinometer PM5/360. The area of cross section of each ones was calculated on the diameter at breast height 1,3 m by means of single-tree assortment tables. The forest-shelter belt composes such timber species as English oak (Quercus Robur L.), European ash (Fraxinus excelsior L.), Tartarian maple (Acer tataricum), choke pear (Pyrus communis), black locust (Robinia pseudoacacia). In the first replication of the permanent sample plot, the forest stand is dense; in the second replication, the forest stand is very dense. The stand formula in the first replication is 5Qr3FreActPc, and in the second replication is 4Fre3Act2QrPc+Rps