Regularities of fir-tree plantings dynamics in old-age spruce stands of Moscow region

In old-age fir-tree plantings of Moscow region more than 30 years observations of forest forming types dynamics on constant trial squares are made. It is revealed that plantings are usually presented by one generation of a fir-tree, and dynamics of its dimensional structure corresponds to theoretical ideas of results of the competitive relations in a forest stand. However of even-aged plantings aren't formed uneven-age as renewal goes unsatisfactorily. Therefore in planting change of forest forming after natural disintegration of generation of a fir-tree dominating in a forest stand is inevitable.