What are the traditional ways of storing water
Answers
Answer:
Rain water harvesting.
storing water in any container.
by storing water in underground tanks for use in emergency.
Answer:
- Kul
Kuls are diversion channels that carry water from a glacier to village. Often spanning long distances, with some over 10 km long, kuls have been around for centuries. They are the lifeline of people of Spiti valley of Himachal Pradesh and in Jammu too.
Kul starts at the glacier, which is to be tapped. Keeping the head clear of debris is achieved by lining the sides of Kul with stones which ensure that there is no seepage or clogging. The Kul leads to the village where the water is stored in a circular water tank. The water is drawn from here are per the need of the village.
- Bamboo Drip Irrigation System
This system of water conservation and usage of stream and spring water is done using bamboo pipes. Practised in Meghalaya, its primary purpose is to irrigate plantations. This 200-year-old system involves 18-20 litres of water entering the bamboo pipe system every minute to irrigate the fields downhill. A brilliant drip irrigation system, it uses bamboos of various sizes and reduces the output to to 20-80 drops per minute, which is splendid for betel leaf and black pepper crops.
The whole irrigation system is made up of different forms of bamboo pipes of varying cross sections which take the water from perennial springs on the tops of the hill. The flow of water is controlled by the changing pipes positions. The method is so efficient that it enables the water to be dropped at the base of the plant to ensure there is no runoff and wastage.
- Johads
Alwar district of Rajasthan is one of the driest regions in India with water scarcity being a common occurrence. After the drought of the 1980s, the villagers attempted to revive the traditional method. Johad, a crescent shaped small check dam built from earth and rock to intercept and conserve rainwater, was thus reinvented. This helps to improve percolation and increases groundwater recharge.
By recharging the aquifer below the surface, Johads have helped increase agriculture in the area. Usage of Johads has also helped increase the flow of river Arvari, making it a perennial river now. It earlier used to dry off after the monsoon.
- Zabo
Zabo means impounding water. Known locally as the Ruza system, this system is a unique combination of water conservation with animal care, forests and agriculture. Mostly practised in Nagaland, Zabo is used to deal with a lack of drinking water supply. During monsoon, rainwater that falls on the hilltops is collected into the pond like structures that are carved out on the hillsides. The water is then passed onto cattle yards below from where the water enters the paddy fields rich in manure.
The paddy fields can be used to rear fishes as well thus giving a yield of about 50-60 kg/ hectare as extra output. Quite a few medicinal plants and herbs are also grown nearby. These ponds are made in such a way that water distribution is uniform.
- Eri
One of the oldest water conservation systems in India, Eri (tank) of Tamil Nadu is still widely used around the State. With over a third of irrigation in the State being made possible due to Eri, the traditional water harvesting system plays an important part in the agriculture. They also have other advantages such as prevention of soil erosion, recharge of groundwater, and flood control.
Eri can either be fed through channels that divert river water, or rain-fed ones. They are usually interconnected to balance the water in case of excess or lesser supply.
- Khadin
Khadin is a water conservation system designed to store surface runoff water for the purpose of agriculture. It entails an embankment built around a slope, which collects the rainwater in an agricultural field. This helps moisten the soil and helps in preventing the loss of topsoil. Additionally, spillways are provided to ensure that excess water is drained off.
This system of water conservation is common in the areas of Jaisalmer and Barmer in Rajasthan. A dug well is usually made a bit further from Khadin to additionally take advantage of groundwater recharging that happens around the structure.
- Virdas
Developed by the nomadic Maldhari tribes of Rann Of Kutch, virdas are shallow wells dug within a natural depression(Jheel). Since the area around is very saline, when rainwater seeps down the soil, it collects over the saline groundwater due to the difference in density (rainwater being less dense). The tribesmen identify areas on basis of flow of the monsoon runoff and build these shallow wells.
This smart method helps them separate freshwater from saltwater and provide water for a variety of purposes. Vegetation is planted along virdas to help protect them.
Explanation: