SYSTEMATIC POSITION OF THE PODZOLIC SOILS DEVELOPED ON THE INPEATLAND DUNES IN THE BIEBRZA RIVER VALLEY AND NAREW RIVER VALLEY

摘要

The profile structure of soils developed on the inpeatland dunes in the Biebrza River Valley and Narew River Valley suggested that they are rusty soils. However, the chemical analyses indicated the distinct accumulation of analyzed elements, mainly iron and aluminium, in the enrichment horizon (B). The determination of studied soils systematic position on the base of podzolic soil diagnostic criteria used by Systematics of Polish Soils and WRB classification as well as on the base of indicators proposed by various authors was the aim of the study. The results revealed that soils developed on dunes in the Biebrza River Valley can be determined as rusty soils, while on dunes located in the Narew River Valley, the podzol soils have developed. The absence of eluvial horizon in these soils presumably resulted from its mixing with humus horizon during ploughing in the past.