Age structure of forest-forming tree species in the Republic of Bashkortostan
The age structure of the main forest-forming tree species of the Republic of Bashkortostan was studied using statistical analysis of information from the database «Forests of Russia», forest management materials and taxation data on forest areas of the Republic of Bashkortostan. It is shown that the unfavorable ratio of young growth and mature and over-mature stands has developed in the region, especially distinct in broad-leaved species. Possible ways of its optimization are shown on the example of pedunculated oak. Evidences of necessity of a broad genetic base of local populations for seed harvesting are presented.