Tank irrigation is more practiced in South India as compared to other forms of irrigation like canal...........

Geography Irrigation

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Tank irrigation is more practiced in South India as compared to other forms of irrigation like canals and wells. Why?

1. It is difficult to dig canals and wells due to undulating relief and hard rock structure.

2. Low underground percolation of rain water due to hard rock structure.

3. Many rivers of South India are seasonal in nature.

4. Population and agricultural fields are scattered which makes canal irrigation economically unviable.

Select the correct answer using the codes given below

1,2 and 3 only

2, 3 and 4 only

1, 2 and 4 only

All of the above

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Explanation:

All of the above is correct.
A tank consists of water storage which has been developed by constructing a small bund of earth or stones built across a stream.
Tank irrigation is popular in the peninsular plateau area where Andhra Pradesh and Tamil Nadu are the leading states.
The tank irrigation is practised mainly in peninsular India due to the following reasons-
1. The undulating relief and hard rock’s make it difficult to dig canals and wells.
2. There is little percolation of rain water due to hard rock structure and ground water is not available in large quantity.
3. Most of the rivers of this region are seasonal and dry up in summer season. Therefore, they cannot supply water to canals throughout the year.
4. There are several streams which become torrential during rainy season. The only way to make best use of this water is to impound it by constructing bunds and building tanks. Otherwise this water would go waste to the sea.
5. The scattered nature of population and agricultural fields also favors tank irrigation.