Code
N12
Sector
Hydro Morphology
The complete description of the NWRM
Summary
A Lake is a water retention facility. It can store water (for flood control) and provide water for many purposes such as water supply, irrigation, fisheries, tourism, etc. In addition, it serves as a sink for carbon storage and provides important habitats for numerous species of plants and animals, including waders. In the past, lakes have sometimes been drained to free the land for agriculture purposes, or have simply not been maintained and have silted up. Restoring lakes consists in enhancing their structure and functioning where they have been drained in former times.
Illustration(s)
 |
 |
|
Perch lake, (USA) |
Lake George, (USA) |
Possible benefits with level
| Benefits | Level |
|---|---|
|
BP1 - Store runoff
|
High
|
|
BP2 - Slow runoff
|
Medium
|
|
BP3 - Store river water
|
High
|
|
BP4 - Slow river water
|
Medium
|
|
BP5 - Increase evapotranspiration
|
Low
|
|
BP6 - Increase infiltration and/or groundwater recharge
|
Low
|
|
BP7 - Increase soil water retention
|
Low
|
|
BP9 - Intercept pollution pathways
|
Low
|
|
BP10 - Reduce erosion and/or sediment delivery
|
High
|
|
BP11 - Improve soils
|
Low
|
|
BP12 - Create aquatic habitat
|
High
|
|
BP13 - Create riparian habitat
|
High
|
|
ES1 - Water storage
|
High
|
|
ES2 - Fish stocks and recruiting
|
High
|
|
ES3 - Natural biomass production
|
High
|
|
ES4 - Biodiversity preservation
|
High
|
|
ES6 - Groundwater/aquifer recharge
|
Medium
|
|
ES7 - Flood risk reduction
|
Medium
|
|
ES8 - Erosion/sediment control
|
High
|
|
ES9 - Filtration of pollutants
|
Low
|
|
ES10 - Recreational opportunities
|
High
|
|
ES11 - Aesthetic/cultural value
|
High
|
|
PO1 - Improving status of biology quality elements
|
High
|
|
PO2 - Improving status of physico-chemical quality elements
|
Medium
|
|
PO3 - Improving status of hydromorphology quality elements
|
Medium
|
|
PO4 - Improving chemical status and priority substances
|
Low
|
|
PO5 - Improving quantitative status
|
Low
|
|
PO6 - Improving chemical status
|
Low
|
|
PO7 - Prevent surface water status deterioration
|
Medium
|
|
PO8 - Prevent groundwater status deterioration
|
Low
|
|
PO9 - Take adequate and co-ordinated measures to reduce flood risks
|
Medium
|
|
PO10 - Protection of important habitats
|
High
|
|
PO11 - Better protection for ecosystems and more use of Green Infrastructure
|
High
|
|
PO13 - Better management of fish stocks
|
High
|
|
PO14 - Prevention of biodiversity loss
|
High
|
Case study(ies)
in-depth 
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