what do you understand by ground water resources in India
Answers
>>Water resources in India includes information on precipitation, surface and groundwater storage and hydropower potential.
>>Rainfall is the major source of ground water recharge in India, which is supplemented by other sources such as recharge from canals, irrigated fields and surface water bodies.
Explanation:
growing demand for water implies the need for an improved understanding of our resources, and the ability to manage that demand in an equitable and sustainable way.
India is a groundwater economy. At 260 cubic km per year, our country is the highest user of groundwater in the world—we use 25% of all groundwater extracted globally, ahead of the US and China.
When we think of water, however, our brains have been programmed to think of large dams and rivers, and not wells. This, despite the fact that India has at least 4 crore irrigation wells and millions of farmers who use well water in agriculture.
India was not the highest extractor of groundwater in the 1960s and 1970s; the Green Revolution changed that. At independence, the share of groundwater in agriculture was 35%; today it is a startling 70%.