The geomechanical and hydrological degradation due to the underground mining of hard coal causes deformations to lands used for nature-related purposes (agriculture, forestry, etc.) and a high variability of soil properties. The present study analysed the spatial variability of soil texture in the layer 0–25 cm in a chosen post-mining area by use of the kriging method. The empirical semivariograms obtained for sand and clay fractions were smoothed with a spherical model. The analyses performed made it possible to draw maps showing fraction content isolines, displaying the spatial variability of soil texture, which can provide a basis for delineating the areas most prone to the hydrological degradation of soils.

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