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प्रश्न
Mention two factors that favour the development of tube well irrigation in Punjab.
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उत्तर
A tube well is a deeper well (generally over 15 metres deep) from which water is lifted with the help of a pumping set operated by an electric motor or a diesel engine. Obviously, a tube well cannot be constructed everywhere and requires some geographical conditions favouring its installation. The main factors are:
(i) There should be sufficient quantity of ground water because a tube well can generally irrigate 2 hectares per day against 0.2 hectares per day irrigated by an ordinary well.
(ii) The water level should be nearly 15 metres. If the water table is more than 50 metres deep the cost of pumping out water from the tube well becomes uneconomic.
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संबंधित प्रश्न
Give a reason why traditional means of irrigation are still important in most parts of India.
Give one geographical reason for each of the following statements:
Irrigation is necessary despite the monsoon.
Briefly explain two reasons for perennial canals being a popular form if irrigation in the named states
What do you mean by irrigation?
Why is canal irrigation more popular in Northern India?
With reference to well irrigation, answer the following question :
Describe two methods of drawing water from the wells.
With reference to well irrigation, answer the following question:
Give two advantages and two disadvantages of wells.
Canal irrigation leads to the ground around it becoming unproductive.
Irrigation is very necessary for solving the food problem.
Name the types of irrigation prevailing in India.
