The composition and structure of mature aspen forests in Lisinsky Forestry Unit of the Leningrad region

Abstract The article addresses the structure of secondary aspen forests, which allows us to predict their productivity, as well as evaluate the features of the formation of the main types of taiga forests. We carried out an analysis of the vitality structure, which forms a basis for forest monitoring. All higher vascular plants, as well as ground, epiphytic and xylophytic species of mosses and lichens were also identified to assess the biological diversity of the stands studied. The study has established that the species diversity of the ground cover in aspen forests depends on the degree of the crown density.