ANALYSIS OF THE TYPES OF FORESTS AND FOREST BIODIVERSITY WATERSHED OF THE SEVERSKY DONETS RIVER

The paper presents results of the study of site types and biodiversity of forests in the water catchment area of the Siversky Donets river. The typological analysis of the forests was made using the methods of Ukrainian school of forest typology. A summary of the Siversky Donets river’s characteristics is presented. Forest site types and tree species were analyzed in depth based on the database of Production Association “Ukrgoslesproekt”. By sites of certain soil fertility, the number of principal species is presented as follows: infertile pine site type – 7, fairly infertile site type – 23, fairly fertile site type – 31 and fertile site type – 45. All the site types, distinguished by forest managers and presented in the water catchment area of the Siversky Donets river, were classified. Their numbers are as follows: infertile pine site type – 3, fairly infertile site type – 6, fairly fertile site type – 11, fertile site type – 12. Origins of pine and oak stands were determined for different forest site types. The results of the study are recommended to be used in the education process