Characteristic of communities abandoned farmland, are overgrown forest in the Bashkir Cis-Urals

Some results of the study of abandoned farmland Bashkir Cis-Urals are presented. The mass renewal of secondary tree species at an abandoned farmland are observed. Ruderal and meadow species is gradually disappearing under the canopy of the tree stand. The shading effect of trees begins to be pronounced when the cover of the tree stand is more than 60%.