Decalcification and soil formation under wet conditions yielded gley and pseudogley soils. The few well drained profiles developed brown soils, sometimes with textural B layers. Aeolian sands of different grain sizes blown from periglacial rivers, form cover sands and inland dunes. These richer sands formed brown podsolic soils or, with secondary blowing, podsols. Holocene alluvium was laid down in cycles of 550 years, of which the most recent ones were of Roman times and medieval.
Meuse alluvial soils are primarily non-calcareous in contrast to the Waal. The oldest ones from Roman times yielded a brown soil with a weak textural B. The younger ones developed alluvial soils with different textures, contents of lime and degrees of gleying.
Cultivation was first without dikes, Which were first round small village units in the 12th century and protected the whole area by the end of the 13th century. Similarly drainage developed from small units to greater units, which lasted until modern times when the whole area was drained in a modern way.
|Qualification||Doctor of Philosophy|
|Award date||13 Dec 1957|
|Place of Publication||'s-Gravenhage|
|Publication status||Published - 1957|
- soil surveys
- land evaluation
- soil suitability
- land development
- hydraulic engineering
- earth sciences
- land van maas en waal
- rijk van nijmegen