Explain any three methods of water harvesting with's its advantages.
Answers
Three methods of rain water harvesting ( with advantages )
- Building of ferro cement tanks
Advantages
(i) It is of low cost and economical .
(ii) It is easy to build .
(iii) It is built with low cost containers .
(iv) It is built with conventional materials .
Area of practise
Building of ferro cement tanks is done in places receiving high rainfall .
States
(i) Kerala
(ii) Meghalya .
- Construction of johads
Advantages
(i) It requires low initial cost .
(ii) It is easy to maintain .
(iii) Groundwater is conserved and increased .
States
(i) Rajasthan
- Potholes construction
Advantages
(i) No wastage of water .
(ii) No evaporation .
(iii) Easy to build .
(iv) Almost no initial cost.
Hope it helps !
______________________________________________________________________
Water harvesting - It is method to capture every trickle of water that falls on the land.
(i) Recharges wells/ Ground water
(ii) Provides moisture for vegetation
(iii) It is not lost by evaporation
(iv) It does not provide a breeding place for mosquitoes
(v) Prevents ground water from contamination due to human and animal wastes.