Iron,Aluminum,Silicon,and Manganese Compounds in Soils of Forest Ecosystems of the Taiga Zone

摘要

The content and composition of iron,aluminum,silicon,and manganese compounds were determined in soils of forest ecosystems of the Russkii Sever National Natural Park (Vologda oblast).The strongest weathering of minerals and the highest conotent of dithionite-soluble iron are typical for non-deep-podzolic residually calcareous soil;their lowest values are typical for soddy-calcareous soil.A pronounced eluvial-illuvial differentiation of dithionite-,oxalate-,and pyrophosphate-soluble compounds is observedin podzolic soils,and their accumlative differentiation is observed in soddy-calcareous soil.