Which water saving methods have been used by watershed communities?

Explanation

Watershed communities have used hundreds of indigenous water saving methods to capture every trickle of water that falls on their land. Few of such methods are:
- digging small pits and lakes,
- putting simple watershed system, in proper places,
- building small earthen dams,
- constructing dykes,
-preparing sand and limestone reservoirs
- setting up rooftop water-collecting units.