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De moeren. IRIS VANDENBULCKE & LOUISE VERHUE IMMACULATA INSTITUUT BELGIUM. Content. Situation Height Mud flats (slikken) & salt marsh (schorren) Human interventions. Situation. Little region in the west of our country near the sea Relief feature: sealine : flat

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De moeren

De moeren

IRIS VANDENBULCKE

&

LOUISE VERHUE

IMMACULATA INSTITUUT

BELGIUM


Content
Content

Situation

Height

Mud flats (slikken) & saltmarsh (schorren)

Human interventions


Situation
Situation

Little region in the west of our country near the sea

Relief feature: sealine: flat

difference in height: minimal

height: 0-5 m = LOWLAND


Height
Height

Normally, without dunes, dikesorsluices, the polders by high tidewouldbepartiallyinundated & by spring tideitwould even becompletelyinundated.

Mud flat (slikken) & saltmarsh (schorren)


Mud flat slikken
Mud flat (slikken)

Notovergrown

Undersealine

Overflows 2 times a dayby high water

Clay & sand


Salt marsh schorren
Saltmarsh (schorren)

Overgrownwithgrass & reed

Abovesealine

Overflows 2 times in a month

Clay


The difference
The difference

Salt marshes are overflowedonlybyspringtime

Mud flats are alwaysoverflowedby high water

On mud flats there are aquatics


Human interventions
Humaninterventions

Dikes (abdij Ter Duinen in Koksijde) protectionby storm surges

The old seadike (De oude zeedijk) 1060

Natural drainage by gravitation: construction of canals send excess water to a lock

Artificial drainage bywindmills


What infrastructure had to be successively applied for this
What infrastructure had to be successively applied for this?

Ring dike

Ring lock

Drainage canals

Mills


Natural drainage bygravitation


Ring dike


Wind wheel

Archimedes screw