Modern tendences of forests structure diversity change during the basic tree species replace in south part of Privolzhskay hill

During transformation of radical oak forests of south part of Privolzhskay sublimity there is a change of their species structure and the structural organization. By the example of spatial lines of an oak forest → lime-oak forest → oak- lime forest → lime forest → maple-lime forest → lime-maple forest → maple forest are tracked directions of change of a structural variety of wood vegetative communities at change the basic tree species. The tendency of decrease of a profile variety and change of separate structural components of communities as a whole is established at transition from oak forest to derivatives lime and maple forests.