What are the four types of traditional rain water harvesting method in India
Answers
Methods of rain water harvesting used in India are :
(a) Guls and Kuls : People built guls and kuls in hilly and mountainous regions to divert water. These are simple channels. They are mainly used in Western Himalayas.
(b) Roof top rain water harvesting : Commonly practised to store drinking water in Rajasthan.
(c) Inundation Channels : These channels developed in the flood plains of Bengal to irrigate fields.
(d) Khadins and Johads : In arid and semi-arid regions, some agricultural fields were converted into rain fed storage structures. These structures are found in Rajasthan.
(e) Tanks : In Bikaner, Phalodi and Barmer, almost all houses have tanks for storing drinking water. Tanks are part of the well-developed roof top rain water harvesting system.
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Rainwater Harvesting➫ The technique used to store rainwater by making water harvesting structure to recharge the underground water resource.
♦ It is one of the methods that can be used for water conservation.
♦ It can be a paved area like the terrace or courtyard of a building.
♦ If we are to have a sustainable future, then rainwater harvesting is going to have to become an important part of our life.
♦ The catchment of a water Harvesting system is the surface which directly receives the rainfall and provides water to the system.
➧ Types of rainwater harvesting system are:-
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❱ Direct Pumped
❱ Indirect Pumped
❱ Indirect Gravity
➧ It comprises components of various stages:-
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❱ Transporting Rainwater through pipes or drains.
❱ Filtration.
❱ storage in tanks for reuse or recharge.
➧ How is the Rainwater Harvesting Done:-
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❱ By taking rooftop rainwater directly into the ground by drain pipes, dug well or Sunk for water pump.
❱ By taking rain water directly into pond & tanks.
❱ By making percolation tanks, well, deep pits or trenches in the path of rainwater.
➧ Advantages of Rainwater Harvesting are:-
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❱ It reduces run of loss of rainwater.
❱ It maintains supply of water during dry month.
❱ It recharges underground water.
❱ It checks soil erosion.
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