Phytocenotic approach to assessing the transformation of forest crops in the northern part of the East European plain

Identification of quantitative and qualitative transformation of ground cover plants under the influence of changes in ecotope conditions during the growth and development of a stand is of great importance for determining ways to restore forest phytocenoses. At this stage, foresters have no doubts about the need for a phytocenotic approach to the study of phytocenoses of natural and anthropogenic origin as a complex biological system. 

The purpose of the research was to study the dynamics of the formation of living ground cover of cultivated soil of forest crops in the northern part of the East European Plain. 

The objects of the study are forest crops of Pinus sylvestris L. and Picea abies (L.) H. Karst. of 2000–2001 years creation.

It is noted that tillage significantly affects the diversity of forest species in the ground cover. Tillage with the PLD1,2 plough leads to a significant reduction in the forest group of plants compared to areas treated with the PLP-135 plough. The greatest changes in the living ground cover were revealed at the site of reconstruction of deciduous young growth with soil treatment by PLP-135. 

As a result of the research, it was concluded that there is a gradual displacement of meadow species by an active forest group of plants. To a greater extent, changes occur due to the reduction of less stable inactive and low-active species, thus, the transformation of the ecological and cenotic structure of the flora occurs after anthropogenic disturbance in the direction of restoring the original structure of the forest environment

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