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POSITION the Netherlands
Rotte area
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INTRODUCTION TEXT WRITTEN BY ESTEFANY
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CHANGE OF THE LAND THROUGH HISTORY 1600
1750
Eendragtspolder used to be a peat landscape. The groundwaterlevel was high therefore the dead plants could not oxidate and therefore peat was created. This swampy area released its water partly by the meandering peat river: “the Rotte”.
The peat was dug from the area to be used as fuel. To be able to dig the peat the area, ditches were dug. This caused the peat to oxidate partly, which made the ground subside even further than just by the extraction of the peat. Because of this the land became lower than the groundwaterlevel. Therefore a peatlake was created: “De zwanlaasche plas”.
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1900
NOW
The zwanlaasche plas was pumped dry. The Eendragtspolder was turned into a recreation On the peat lakebed ditches were dug area and a waterstorage system, because of our to lower the groundwaterlevel and changing weather conditions in the future. therefore make the land usable for agriculture.
SOIL MAP
Clay Peat
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WATER STORAGE SYSTEM standard
NAP -1,00 max NAP -2,50 max NAP -4,40 NAP -6,45 min NAP -9,10
water storage: once every 10 years on average – max. 3 million cubic metres of water NAP -1,00 max NAP -2,50 max NAP -4,40 NAP -6,45 min NAP -9,10
emergency water storage: once every 50 years on average – 1 million cubic metres of water NAP -1,00 max NAP -2,50 max NAP -4,40 NAP -6,45 min NAP -9,10
ROTTE 1.12
ZONE 1
ZONE 2
MAIN WATER COURSE
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WATER-LAND EDGES profiel 6 - kade in lengterichting plas-drasgebied
Gradual edges
profiel 7 - zuidelijke kade plas-drasgebied
Steep edges
profiel 8 - oostelijke kade plas-drasgebied
Semi sloped edges
The water/land edges are seeded with a mixture of certain grasses specially chosen for dikes. The shallow swamp in the lake will get created by the spontaneous emergence of species. The expectation of the ecological value is not very high, therefore the choice of plants for the non-waterresistent areas can be chosen through their experiential value. Selection because of color would be an option, with indigenous species as a starting point. 1.14
PLANTING SCHEME No planting
Sorbus intermedia
Tilia
Sambucus
Aesculus
Crataegus
Populus alba
Cornus
Rhamnus
Juglans
Fraxinus excelsior
The water/land edges are seeded with a mixture of certain grasses specially chosen for dikes. The shallow swamp in the lake will get created by the spontaneous emergence of species. The expectation of the ecological value is not very high, therefore the choice of plants for the non-waterresistent areas can be chosen through their experiential value. Selection because of color would be an option, with indigenous species as a starting point. 1.15
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