Re-naturalisation of polder areas
Code:
N14
Sector:
Hydro Morphology
The complete description of the NWRM:
Summary:
A polder is a low-lying tract of land enclosed by embankments (barriers) known as dikes that forms an artificial hydrological entity, meaning it has no connection with outside water other than through manually operated devices. Its re-naturalization consists in enhancing polders with sub-natural characteristics, allowing better water storage in watercourses inside the polder, as well as increased biodiversity.
Illustration(s):
Polder of Juist (Germany)
Source: http://commons.wikimedia.org/wiki/File:2012-05-13_Nordsee-Luftbilder_DSCF8997.jpg
Possible benefits with level:
| Benefits |
Level |
|---|---|
| BP6 - Increase infiltration and/or groundwater recharge | Medium |
| BP13 - Create riparian habitat | Medium |
| ES2 - Fish stocks and recruiting | Medium |
| ES3 - Natural biomass production | Medium |
| ES6 - Groundwater/aquifer recharge | Medium |
| ES7 - Flood risk reduction | Medium |
| ES11 - Aesthetic/cultural value | Medium |
| PO1 - Improving status of biology quality elements | Medium |
| PO5 - Improving quantitative status | Medium |
| PO13 - Better management of fish stocks | Medium |
| PO14 - Prevention of biodiversity loss | Medium |
| BP2 - Slow runoff | Medium |
| BP4 - Slow river water | Medium |
| BP7 - Increase soil water retention | Low |
| BP9 - Intercept pollution pathways | Low |
| BP14 - Create terrestrial habitats | Low |
| ES8 - Erosion/sediment control | Low |
| ES9 - Filtration of pollutants | Low |
| ES10 - Recreational opportunities | Low |
| PO2 - Improving status of physico-chemical quality elements | Low |
| PO4 - Improving chemical status and priority substances | Low |
| PO6 - Improving chemical status | Low |
| PO7 - Prevent surface water status deterioration | Low |
| PO8 - Prevent groundwater status deterioration | Low |
| PO11 - Better protection for ecosystems and more use of Green Infrastructure | Low |
| BP5 - Increase evapotranspiration | Low |
| BP10 - Reduce erosion and/or sediment delivery | Low |
| BP11 - Improve soils | Low |
| ES12 - Navigation | Low |
| BP1 - Store runoff | High |
| BP3 - Store river water | High |
| ES1 - Water storage | High |
| ES4 - Biodiversity preservation | High |
| PO9 - Take adequate and co-ordinated measures to reduce flood risks | High |
| PO10 - Protection of important habitats | High |
| BP12 - Create aquatic habitat | High |
Case study(ies):
in-depth 
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Last updated: 09 Jun 2015 | Top
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