De invloed van bosschen op het regime van rivieren
The region concerned, reaching eastwards to the provincial boundary with Limburg, southwards to the Belgian frontier, westwards to a sand ridge through the city of Tilburg and northwards to the River Maas, covers 300,000 ha. It consists mainly of undulating sand soils. The general slope from south to north averages 60 cm per km. The whole region di...
Effect droge zomer van 1947
Indeling van de voornaamste groentegewassen in de vollegrond naar de eisen, die ze stellen aan de vochtigheid van de grond.