Schalterveen

Characterization of peat and soil processes

A peat soil is composed of humified plant material. This wet, spongy material is formed from decayed vegetation and is preserved because it is saturated with water. There are different types of peat, depending on the position relative to the groundwater table, plant species and the nutrient content of the water in the peat. Peat layers vary in thickness from a few decimetres to several metres, and in places, the peat is covered by a layer of mineral soil. In some regions, peatland has largely disappeared due to excavation.

Peat is a dynamic substance: it swells when wetted and shrinks on drying out. As a result, the ground level  can vary by a decimetre across the year. Under excessive drainage, the peat will oxidize and the land surface will permanently subside.

Wageningen University & Research creates maps of the occurrence of different types of peat. We investigate processes, hydrological responses and dynamics in peat soils.

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