Rainwater harvesting is being increasingly used to collect precipitation water. The ideas of trenches is to obstruct surface runoff from catchments and concentrate the water to be infiltrated. The collected rainwater can be reacharged thorugh trenches, ditches and pits. These structures are easy to built and maintain and very adaptable.
|Typical system capacity scale||Family to Village (10²-10³ m³/a)|
|Topography||Rural areas with gently slopes.|
|Water source||Rain water.|
|MAR main objective||Strategic water storage.|
Advantages and disadvantages of the system (adapted from IGRAC, 2007):
- Low cost and simple design.
- Prevention of soil erosion.
- Water quality might be problematic (fertilizer).
- Relatively small infiltration quantities.
- IGRAC. (2007). Artificial Recharge of Groundwater in the World.
- DEMEAU. (2014). Characterization of European managed aquifer recharge (MAR) sites – Analysis.