Tendencies for landscape-geochemical changes in valley forests of northern Western Siberia

The regularities of landscape-geochemical changes shared by open woodlands, and by the northern and middle taiga are demonstrated with an example of the swamping process of valley forests. The character of these changes is shown for forests on loamy and sandy deposits. The tendencies of the structural-functional transformations ascertained in this study are considered in the context of regional biogeochemical problems faced by the plain-taiga territory of Western Siberia.