Restoration of natural infiltration to groundwater

Code: 
N13
Sector: 
Hydro Morphology
The complete description of the NWRM: 
Summary: 

Groundwater is the part of infiltrated water which composes the water resource for population and human activities.  Previous modifications of the landscape have reduced the infiltration capacity of many European soils, thereby limiting the rate at which precipitation is able to infiltrate and recharge groundwater aquifers. Restoration of natural infiltration to groundwater enables a lowering of run-off from surrounding land, and enhances the condition of groundwater aquifers and water availability. The natural cleaning processes associated with infiltration can improve water quality. This measure can also be known as “Artificial Groundwater Recharge” in the engineering literature.

Mechanisms to restore or enhance natural infiltration capacity include:

(i) surface structures to facilitate/augment recharge (such as soakaways and infiltration basins);

(ii) subsurface indirect recharge – infiltration capacity is enhanced through wells drilled within the unsaturated zone; and

(iii) subsurface direct recharge – infiltration and recharge of the groundwater aquifer is accomplished through wells reaching the saturated zone.

Illustration(s): 

Explicative scheme of enhanced infiltration (UK)

Source: http://www.bgs.ac.uk/research/groundwater/agrar.html

Possible benefits with level: 
Benefits Levelsort descending
ES13 - Geological resources High
BP6 - Increase infiltration and/or groundwater recharge High
PO9 - Take adequate and co-ordinated measures to reduce flood risks Low
ES5 - Climate change adaptation and mitigation Low
ES7 - Flood risk reduction Low
ES8 - Erosion/sediment control Low
BP1 - Store runoff Low
BP9 - Intercept pollution pathways Low
BP10 - Reduce erosion and/or sediment delivery Low
PO5 - Improving quantitative status Medium
PO8 - Prevent groundwater status deterioration Medium
ES1 - Water storage Medium
ES6 - Groundwater/aquifer recharge Medium
BP7 - Increase soil water retention Medium
BP2 - Slow runoff Medium
Last updated: 09 Jun 2015 | Top