Aquatic layers of perzed soil often cause on the slope under the appropriate conditions the layout of the swimming type soil, which are the main source of nutrition of the sources of local river systems in the area of the Amur Region.
Aquatic layers of perzed soil often cause on the slope under the appropriate conditions the layout of the swimming type soil, which are the main source of nutrition of the sources of local river systems in the area of the Amur Region.
