State of coenopopulations of main forest tree species within the Voroninsky Nature Reserve

The results of analysis of demographic and vitality structure of coenopopulations (CP) of forest forming species at 22 permanent plots (PP) within the Voroninsky nature reserve are presented (Tambov region). The PPs are located in upland oakeries and aspen stands, birch-aspen plantings, floodplain oakeries and in the swampy watershed. It is shown that Acer platanoides L. is the most abundant in number. It has invasive and normal incomplete CPs with peaks at virginal or young reproductive inviduals. In the coming decades the gradual decay of oak and aspen stands and their replacing with maple stands (especially in the upland sites) should be expected.