Question

Explain how watershed management and rain water harvesting are the methods of efficient management and conservation of surface water resources in india

Answer 1

reduce surface runoff
holds water
water can be used in time of need

Answer 2

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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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