Question

describe replenishable groundwater resources of India

Answer 1

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 Dynamic groundwater resources of India have been estimated using groundwater resource estimation methodology-1997. The methodology uses the water-level fluctuation technique and empirical norms for recharge estimation. The groundwater utilization is also estimated. The stage of groundwater development is worked out and assessment units are categorized based on the stage of groundwater development and long-term water-level trend. The annual replenishable groundwater resources of India is 433 billion cubic metre (bcm) and net annual groundwater availability is 399 bcm. The annual groundwater draft for 2004 was 231 bcm. Thus the overall stage of groundwater development is 58%. Out of 5723 assessment units in the country, 4078 are 'safe' and 839 are 'over-exploited'. The rest fall under 'semi-critical' and 'critical' category. Over-exploitation is more prevalent in northwestern, western and Peninsular India. Eastern India has good potential for future groundwater development. Considering the changing groundwater scenario, re-assessment of groundwater resources needs to be carried out at regular intervals. This would require further strengthening of the available database. 

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Answer 2

Ground water resources of India.

Explanation:

• The groundwater in India is a critical resource and is used at a fat rate reaching the unstable levels of exploitation.

• Being the largest user of groundwater in the world and use an estimated 230 cubic km per year. More than 60% for agriculture and 85% for the drinking water supplies.

• Due to the impacts of climate change the groundwater is getting deleted further and is a serious threat to the agriculture and long term food security.

• The size of landholdings and population density, use of water-intensive crops and economic policies determine the groundwater extraction.

• India currently stores about 6% of the rainwater and has built about nearly 5000 major and medium dams to store the water of the river and enhance the groundwater recharge as most of the Indian River has a good power of water potential.

Learn more about the replenishable groundwater resources of India.

• brainly.in/question/4489741 answerd by ShAiLeNdRaKsP.