Code
N07
Sector
Hydro Morphology
The complete description of the NWRM
Summary
An oxbow lake is an ancient meander that was cut off from the river, thus creating a small lake with a U form. Reconnecting it with the river consists in removing terrestrial lands between both water bodies, therefore favouring the overall functioning of the river by restoring lateral connectivity, diversifying flows and cleaning the river section of the present oxbow for a better water retention during floods.
Illustration(s)
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 |
|
Oxbow lake (France) Source: http://www.symbhi.fr/11256-les-travaux-en-riviere-durant-le-premier-semestre-2013.htm |
Re-connected oxbow lake, (France) Source: http://nature.on-rev.com/2011/composants-du-paysage/ |
Possible benefits with level
| Benefits | Level |
|---|---|
|
BP1 - Store runoff
|
High
|
|
BP2 - Slow runoff
|
High
|
|
BP3 - Store river water
|
High
|
|
BP4 - Slow river water
|
High
|
|
BP5 - Increase evapotranspiration
|
Low
|
|
BP6 - Increase infiltration and/or groundwater recharge
|
High
|
|
BP7 - Increase soil water retention
|
Medium
|
|
BP8 - Reduce pollutant sources
|
Low
|
|
BP9 - Intercept pollution pathways
|
Medium
|
|
BP10 - Reduce erosion and/or sediment delivery
|
High
|
|
BP11 - Improve soils
|
Low
|
|
BP12 - Create aquatic habitat
|
High
|
|
ES1 - Water storage
|
Medium
|
|
ES2 - Fish stocks and recruiting
|
Medium
|
|
ES3 - Natural biomass production
|
Low
|
|
ES4 - Biodiversity preservation
|
High
|
|
ES5 - Climate change adaptation and mitigation
|
Medium
|
|
ES6 - Groundwater/aquifer recharge
|
Medium
|
|
ES7 - Flood risk reduction
|
Medium
|
|
ES8 - Erosion/sediment control
|
High
|
|
ES9 - Filtration of pollutants
|
Medium
|
|
ES10 - Recreational opportunities
|
Low
|
|
ES11 - Aesthetic/cultural value
|
Medium
|
|
PO1 - Improving status of biology quality elements
|
Low
|
|
PO2 - Improving status of physico-chemical quality elements
|
Low
|
|
PO3 - Improving status of hydromorphology quality elements
|
High
|
|
PO4 - Improving chemical status and priority substances
|
Medium
|
|
PO5 - Improving quantitative status
|
Medium
|
|
PO6 - Improving chemical status
|
Medium
|
|
PO7 - Prevent surface water status deterioration
|
Medium
|
|
PO8 - Prevent groundwater status deterioration
|
Low
|
|
PO9 - Take adequate and co-ordinated measures to reduce flood risks
|
High
|
|
PO10 - Protection of important habitats
|
High
|
|
PO11 - Better protection for ecosystems and more use of Green Infrastructure
|
High
|
|
PO12 - More sustainable agriculture and forestry
|
Low
|
|
PO13 - Better management of fish stocks
|
Medium
|
|
PO14 - Prevention of biodiversity loss
|
High
|
Case study(ies)
in-depth 
light 