Dynamics of the forestry and ecological state of plantings in a megalopolis

The study is devoted to assessing the state of green spaces in the northeastern part of Moscow, which are a good example of facilities experiencing increased anthropogenic stress and at the same time performing their main functions – the absorption and processing of negative impact products. The purpose of the study is to assess the dynamics of the forestry and ecological state of plantations in a megalopolis by determining the degree of deformation of the vegetative organs of the main forest-forming rock, as well as the content of dangerous chemical elements such as lead and zinc in them and the soil. Research methodology: to achieve this goal, two test areas were laid on the territory of the Losiny Ostrov Park in 2022, located within the recreational zone at different distances from the boundaries of the forest park and surveyed in 2001 by Prima-M LLC as part of a citywide monitoring program. A description is given of a study conducted to assess the dynamics of changes in the forestry characteristics of the green spaces of the Losiny Ostrov National Park depending on the degree of deformation of the leaves of the hanging birch (Betula pendula Roth) and the content of lead and zinc in the soil and leaves of this breed. The results obtained: updating the data obtained during the study in 2022 and comparing them with previous ones, in addition to the obtained measurements of fluctuating leaf asymmetry, allows us to conclude that the plantings are adapted to lead and zinc. Conclusions: the results of the study can serve as a justification for establishing new approximate permissible concentrations of lead and zinc in soil and air, as well as to judge the high degree of adaptation of the hanging birch to adverse environmental conditions. The data obtained during the study will be used in the future for comparative analysis with the results of other natural objects located in other administrative districts of Moscow (Kuzminki Natural History Park, Kolomenskoye Museum Reserve, N.V. Tsitsin Main Botanical Garden).

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