Plastic soils

This dataset series collects map layers, vector maps and grids, derived from the Soil Map of Belgium and from the Geogological 3D model (G3Dv3) and from the Hydrogeological 3D Model of Flanders (H3Dv2). These maps show where there are potential layers that can potentially behave (swells and/or shrink) in the soil (upper 1.25 m) or deeper into the underlying geological layers. Currently, only clay, silt and clay are mapped. Glauconite admixture in sands can also potentially affect the plastic behaviour of soils, but no specific map material is yet collected. Peat in the soil and subsoil can also have an influence on terrain drops in droughts. Field research should always show whether there is effective clay or clay in the soil or subsoil, and to what extent this should be taken into account for the use of this soil or when building on or in that soil.