Which among the following areas is conducive for well irrigation?

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Q: 47 (NDA-I/2013)
Which among the following areas is conducive for well irrigation?

question_subject: 

Geography

question_exam: 

NDA-I

stats: 

0,11,32,17,5,11,10

keywords: 

{'well irrigation': [0, 0, 0, 1], 'brackish groundwater region': [0, 0, 0, 1], 'areas': [0, 0, 1, 0], 'uttar pradesh': [5, 1, 0, 7], 'rajasthan': [0, 0, 1, 18], 'peninsular india': [1, 0, 1, 3], 'deltaic regions': [0, 0, 0, 1], 'gujarat': [2, 0, 1, 1], 'dry tracts': [0, 0, 0, 1], 'krishna': [0, 0, 0, 3], 'godavari': [0, 0, 0, 1], 'mahanadi': [18, 2, 10, 16]}

Well irrigation is a type of irrigation in which groundwater is pumped from a well to irrigate crops. For well irrigation to be effective, there must be sufficient groundwater available to meet the crop's water requirements.

Deltaic regions are formed where rivers deposit sediment as they flow into the sea. The sediment forms a fertile plain that is ideal for agriculture. The deltas of the Mahanadi, Godavari, and Krishna rivers are particularly fertile and support a variety of crops, including rice, sugarcane, and fruits.

These deltaic regions are conducive for well irrigation because they have abundant groundwater resources. The sediments in the delta act as a natural filter and help to replenish the groundwater. The water table is relatively shallow in these regions, making it easy to access groundwater through wells.

In contrast, rocky and uneven surfaces of Peninsular India, dry tracts of Rajasthan and Gujarat, and brackish groundwater regions of Uttar Pradesh are not conducive for well irrigation because they either have limited groundwater resources or the groundwater is of poor quality. Therefore, option 4 is the correct answer.