The role of root systems of Pinus sylvestris L. during the formation of secondary pine forests in deforestation in the Kola North

The role of the roots and root systems of Pinus sylvestris L. in the formation of secondary pine forests in the cuttings of the Kola North was studied. It has been established that in pine seedlings in disturbed areas, root and shoot systems are formed quite quickly. Already in the I-th grade of age, characteristic morphological signs of root systems appear, the feeding areas of trees begin to overlap each other. The bulk of the roots (80–85%) is concentrated in the upper 20-centimeter soil layer. A linear relationship between the taxation indicators of trees and the mass of root systems has been revealed. The conducted studies have shown that the formation of forest communities of Scots pine in the cuttings of the Kola North, their stability and productivity are directly dependent on the degree of development of individual roots and root systems as a whole.