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Soil permeability is the measure of the soil’s ability to permit water to flow through soil pores. It depends chiefly on the volume and geometry of soil pores, bulk density, and soil structure. Studied soils were overgrown with short-rotation plantations of Salix and amended with sewage sludge in Germany, Estonia, and Poland. Sewage sludge application as well as the use of soils influenced water permeability.
The content of phosphorus, aluminium, and iron compounds soluble in an HCl solution and in ammonium oxalate varies widely in different horizons of the investigated gley-podzol soils. Phosphorus compounds accumulate in the surface organic and humus horizons, but they are also found in large quantities in the alluvial and gley horizons. The content of phosphorus compounds soluble in an HCl extract and...
The area of Kurpie Plain features mucuous soils (sandy humous soils) containing from 3 to 10% of organic matter in the humus (top) layer. These soils developed from loose sands of fluvio-glacial origin. The morphology of these soils indicates the prior processes of podsolization and gleyization. The profile distribution of those elements soluble in 20% HCl as well as free iron, indicate the podzolization...
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