Geography
Give two advantages and two disadvantages of well irrigation.
Water Resources
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Answer
Two advantages of well irrigation are-
- Wells can be dug at a very low cost which is well within the means of poor farmers.
- By the use of pumps and tubewells, water can be lifted even from great depths.
Two disadvantages of well irrigation are-
- Wells depend on underground water resources whose distribution varies from region to region.
- The traditional wells dry up due to over withdrawal of the ground water and lowering of the water table.
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Related Questions
(i) What is meant by traditional or conventional methods of irrigation?
(ii) Name any two conventional methods of irrigation.
State any two drawbacks of conventional methods of irrigation.
Give a geographical reason for each of the following:
(i) Well irrigation is confined mainly to the alluvial plains.
(ii) In Tamil Nadu, nearly one-third of the net irrigated area is under canal irrigation.
(iii) Drip irrigation reduces loss of water through evaporation.
(i) Name any two states where well irrigation is practised.
(ii) Give one advantage and one disadvantage of tubewell irrigation.