class ten social science geography water resources

Water Resources

Water: Some Facts and Figures:

Water Scarcity:

Water Resource Management

India had a long tradition of building various structures to manage water resources. Irrigation systems were built as early as during the Mauryan Empire.

At present, many multipurpose dam projects had been built in India. These dams serve many purposes. They prevent flood by checking the flow of water. The water from the dams is used through a system of canals to irrigate far flung areas. Dams are also used for electricity generation. Moreover, drinking water is also supplied from the dams.

But dams have caused a lot of people being displaced from their ancestral lands. Additionally, a vast tract of land gets submerged in the catchment area of dam. This results in large scale environmental consequences. Due to these reasons, many movement groups have begun protesting against building of large dams. Narmada Bachao Andolan is an example of one such movement.

Rainwater Harvesting

Most of the rainwater just flows off without percolating down the ground. This can be prevented by using rainwater harvesting. Rainwater can be collected for future use or can be channelized to recharge groundwater. Rooftop rainwater harvesting is ideal to be applied at small scale. Many infrastructure projects; like Metro rail and flyovers have also started making provisions for rainwater harvesting.

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