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Dutch polders

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Dutch polders

  1. 1. Dutch Polders By María Nieva. 3ºC 2009-10 IES FRAY PEDRO DE URBINA
  2. 2. 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.
  3. 3. 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.
  4. 4. 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.
  5. 5. The mills • They avoid the land from being flooded. • There are the famous “tulip crops”. • They are also called pumps.
  6. 6. 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):

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