Аннотация:Natural forest ecosystems located in the territory of the natural-historical park “Kuzminki-Lyublino” in Moscow are under low recreational load (I stage of digression), but still are subject to transformation. The concentrations of heavy metals have a slight excess fractionally to sanitary-hygienic standards (0.1-8 times). However, their content in comparison with the background territory of the Prioksko-Terrasny BR may have an excess from 1.1 to 81 times. The main source of pollution of the least disturbed forest ecosystems of the natural-historical park “Kuzminki-Lyublino” are atmospheric depositions. This thesis is confirmed also by the increased values of magnetic susceptibility. Therefore, despite of ecosystem wellbeing, the natural forests of the natural-historical park “Kuzminki-Lyublino” experience anthropogenic influence, contributing to their transformation and formation in the territory of the city specific forest ecosystem.