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):