discuss about various projects for conservation of water in rajasthan.
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Answer:
Water conservation includes all the policies, strategies and activities to sustainably manage the natural resource of fresh water, to protect the hydrosphere, and to meet the current and future human demand. Population, household size, and growth and affluence all affect how much water is used. Factors such as climate change have increased pressures on natural water resources especially in manufacturing and agricultural irrigation.[1] Many US cities have already implemented policies aimed at water conservation, with much success.[2]
The goals of water conservation efforts include:
Ensuring availability of water for future generations where the withdrawal freshwater from an ecosystem does not exceed its natural replacement rate.
Energy conservation as water pumping, delivery and wastewater treatment facilities consume a significant amount of energy. In some regions of the world over 15% of total electricity consumption is devoted to water management.
Habitat conservation where minimizing human water use helps to preserve freshwater habitats for local wildlife and migrating waterfowl, but also water quality.[3]
Strategies
Social solutions
Household applications
Commercial applications
Agricultural applications
Water Reuse
Wasting of water
See also
References
External links
Suresh Kumar, another farmer, said that due to lack of adequate water many of the villagers had sold their cattle as they could hardly get green fodder for them. "We used to grow only Kharif crop, but now we can produce Rabi crop too," he added.
How did a region notorious for scarcity of water become self-sufficient?
A combination of a scientific approach and ancient traditional practices have brought about a green cover in hundreds of villages across the region where life had become extremely difficult for farmers.
The change came about on the initiative taken by the state government under the Mukhyamantri Jal Swalamban Yojana (MJSA). Under the programme, UN consultant on conservation of water, T. Hanumantha Rao, and the Rajasthan River Basin and Water Resources Planning Authority came together to begin simple practices which brought about a sea change in drought-prone areas.
The programme involved digging up trenches or pits about two feet deep, 10 to 15 feet long and one-and-a-half feet wide in the hillocks surrounding the villages. Additionally, several ponds were dug near the villages to conserve water.
From the air, these hundreds of trenches look like a neat pattern of unlinked canals. But they have resulted in the water table rising to, in many places, a mere three feet under the surface.