The analysis of occurrence and abundance of types of a live ground coveron the squares damaged by a windfall
To date, massive windfall, is one of the widespread natural disasters, leading to structural and functional changes in forest ecosystems. This process can drag on for decades, which means that only long-term monitoring can provide reliable information about the dynamics of this process. The information obtained during the monitoring of forest ecosystems disturbed by mass winds has an important practical and theoretical significance.This article examines the species diversity of the ground cover for 18 years after winding it on a permanent trial plot (Shaytanka), laid down after a massive windbreak on June 30, 1993, in blocks 68 and 69 of the Novo- Lyalinsky forest district. The following variants of the experiment are considered: 1 - without clearing the winding area; 2 - with clearing of the wind zone; 3 - with the implementation of measures to clean up the wind and planting of forest crops; 4 (control) - under the canopy of a plantation adjacent to the windmill area, not traversed by a windfall. A classification of vegetation is proposed with the identification of 6 phytocenotic groups characterized by relative common species composition and their interaction with each other, which allows to combine the obtained data for their further investigation: the increase in the number of living ground cover occurs mainly due to species of the group of deciduous forests, which has large indicators compared with other groups represented in the study; all variants are clearly dominated by sedge rhizome, reed reed, and pile out ordinary; the formation of a specific species structure of the living ground cover is associated with a change in microclimatic conditions and the formation of new ecotopes in windy areas; the formation of the lower tiers of vegetation after the wind on the SPP “Shaytanka” as a whole proceeds very dynamically, the main role in this is played by the natural renewalabilities of the forest.