Dutch Polders
By María Nieva. 3ºC 2009-10
IES FRAY PEDRO DE URBINA
What are they for? • They are all around the country and most of the 2/5
of Netherlands is polderized. • If they weren’t drained, all they country would be
flooded.• The main activity is agrarian one.• There are more than a million hectares which are
polderized.• They’re managed by pumps or drainage canals.
Types of polders I
• Pieces of sea which have been occupied by land.
• Flood plains separated from the sea by a dike.
• Reservoirs which are drained.
Types of polders II
• Low lying polders: Low constant water levels are maintained because they are used in agriculture.
• High lying polders: High constant water levels are maintained and they’re used in pasture areas.
The mills
• They avoid the land from being flooded.
• There are the famous “tulip crops”.
• They are also called pumps.
Location
• They’re in a low lying areas.• Andijk and Beemster are one of the most
important polders.• Felvopolders (located in Eastern and Southern
Flevoland polders):