1. Water Harvesting

2. Water harvesting measures
These are artificial recharge measures that capture rainfall and run-off and store it in the soil profile or add to the recharge

3. Water harvesting measures
There are many different types of water harvesting techniques – depending on:
natural conditions (slope, soil, rainfall patterns)
local knowledge and traditions

4. Some examples of water harvesting measures
Recharge wells
Percolation ponds
Contour bunding
Checkdams and gully-plugs
Subsurface dams

5. By channelling run-off to disused dugwells, recharge wells are created

6. Percolation tank
These tanks collect rainwater and run-off and make sure it infiltrates

7. Contour Bund
Intercepts the sheetflow and ponds up water in the gully, so that it infiltrates

8. Some examples of water harvesting measures
Block and impound
stormwater flow in
riverbeds and gullies

9. Subsurface dams These are built underground
They intercept subsurface flows in river beds
They serve both to recharge and to increase water tables in the area

10. Local water harvesting measures
Where possible small and low cost water harvesting structures – such as recharge wells - may be promoted, as these:
can be made with local and even individual investment
can be easily maintained +
When people invest themselves in recharge it is also more likely that they will develop local rules on using groundwater

11. There are also many opportunities to integrate road planning with artificial recharge by having road bunds slowing down surface run-off

12. This bridge for instance
doubles up as a checkdam!
Flood water in the river bed is retained before it flows through the culverts
Water
retained here