Some Chemical Properties of Sandy Soils Affected by Uncontrolled Dump Sites in the West Pomeranian Province

摘要

The studies included eight field objects on soils with granulometric composition of loose and slightly loamy sand, under uncontrolled dump sites. Two sandy objects situated in forests were also examined. The impact of dump sites on the chemical properties of sandy soils was assessed by comparing the results for the samples collected from the surface soil layer under the dump site and adjoining sandy arable land or forest. Waste material in the surface layer of soils developed from loose or slightly loamy sand distinctly increased the amount of admixtures, slightly decreased acidity but did not cause the accumulation of heavy metals (Cd, Pb, Zn, Cu). Slightly elevated amounts, in comparison with the content obtained for adjacent arable land and forest, were observed sporadically and at some points with the increase of organic matter, especially in forest soils. Contaminants from the waste dumped on sandy area or sandy exploitation pit migrate to deeper soil layers or adjacent water-courses, small bodies of water, and lakes.