methods of water harvesting
Answers
Answer:
please mark as brainliest and thanks
Explanation:
Methods of Rainwater Harvesting
Surface Runoff Harvesting. In urban areas, rainwater flows away as surface runoff. ...
Rooftop Rainwater Harvesting. It is a system of catching rainwater where it falls. ...
Catchment. ...
Transportation. ...
First Flush. ...
Filter. ...
Storage of Direct Use. ...
Recharging Groundwater Aquifers.
Answer By Amit
1. Water Harvesting The purpose of the stored water, whether for domestic use, stocking weathering, supplementary of full irrigation. OR The collection and storing of water on the surface of the soil for subsequent use is known as water harvesting.
2. This include all measures that induce, collect, store and conserve surface runoff in a region. Water harvesting is most essential operation in arid and semi arid region where water is the deficit for most of the season.
3. Many water harvesting structures and water conveyance systems specific to the eco-regions and culture has been developed into:- They harvested the rain drop directly. From rooftops, they collected water and stored it in tanks built in their courtyards. From open community lands, they collected the rain and stored it in artificial wells. They harvested monsoon runoff by capturing water from swollen streams during the monsoon season and stored it various forms of water bodies. They harvested water from flooded rivers
4. History • Water has been harvested in India since antiquity, with our ancestors perfecting the art of water management. • Around the third century BC, the farming communities in Balochistan (now located in Pakistan, Afghanistan and Iran), and Kutch, India, used rainwater harvesting for irrigation. • In ancient Tamil Nadu (India), rainwater harvesting was done by Chola kings. • Rainwater from the Brihadeeswara temple (located in Balaganpathy Nagar, Thanjavur, India) was collected in Shivaganga tank • There are evidences that, even during Harappan period, there was very good system of water management as could be seen in the latest excavation at Dholavira in Kachch. • Many water harvesting structures and water conveyance systems specific to eco-regions and culture has been developed.
5. TRADITIONAL METHODS OF WATER HARVESTING Traditional rainwater harvesting, which is still prevalent in rural areas, was done in surface storage bodies like lakes, ponds, irrigation tanks, temple tanks etc. In urban areas, due to shrinking of open spaces, rainwater will have to necessarily be harvested as ground water, Hence harvesting in such places will depend very much on the nature of the soil viz., clayey, sandy etc.
6. Some of the Traditional Techniques ROOF WATER: Slightly sloping roofs allow water to run into gutters, down pipes, and into specially prepared drums. Filters of wire mesh, sand, gravel, and charcoal clean the water. It is funneled into underground sumps or aboveground tanks. Tanks are sealed to keep out air, sunlight, and organic matter; treatment with alum reduces turbidity; and bleaching powder kills bacteria. This water can be used for gardening, flushing toilets, washing clothes
7. NAULAS: Stone walls built across a stream to dam the water. Shady trees planted at the sides cut down evaporation, and medicinal plants thrown into the small reservoirs purify the water. PERCOLATION TANKS, RAPATS: Small tanks built on sandy or rocky soil to store rainwater. Some of the water is used, but the remainder percolates through to aquifers, which replenish wells.
8. BHANDARAS: Underground tanks built to intercept water from springs, channeling it to storage tanks for city use. QANATS: Vertical shafts in hilly areas to catch rainwater. The water is collected in underground channels that carry it by gravity over long distances to storage wells. INTEGRATED TANKS: Tanks that overflow into a series of lower tanks to catch the rainwater that is funneled through gutters.
THANK YOU
please mark as brainliest THANK YOU