The elemental composition of humic acids from soils of the Selenga delta areas

Humic acid of sod forest and meadow soils of the Selenga delta areas were characterized by lowered concentration of carbon, nitrogen, low degree of aromatization and developed aliphatic part. Analysis of the elemental composition of humic acids and meadow chestnut soil indicate that in the presence of permafrost in the soil enriched from pulp signinum complex plant residues soils with the lowered content of carbon and nitrogen in the molecule are formed.