Growth and yield of pine-linden forest plantations in the forest experiment district of the Timiryazev Academy

The materials for the study were the data of long-term observations on permanent test plots, laid down in the Forest Experimental District of the Timiryazev Agricultural Academy M.K. Tursky and N.S. Nesterov. Planting in the pits under a shovel in the spring of 1880, three-year-old seedlings of pine and four-year-old linden in equal quantities. Only 1 hectare was planted 4392 plants. To consider the dynamics of taxation indicators of stands on constant test plots, they were aligned with age. Until the age of 95-110 years, the pine element of the forest is characterized by large values of productivity indicators. After it begins to decline as a result of the decay of large trees, and the linden dominates the plantation. Pine-linden stands are more durable and stable compared to pine monocultures, in which intensive decomposition occurs after 130-140 years. In the absence of natural regeneration of pine and other conifers, the formation of a clean linden stand does not meet the objectives of farming in the conditions of the city of Moscow, therefore, it is necessary to reorganize the plantations.