Monday, 25 July 2016

irrigation


BARRAGE:
A barrage is a barrier constructed across a water way to  control  the flow or raise the level of water. It is built in a watercourse to increase the depth of water or to divert into a channel for navigation or irrigation. observe one more comon use of a barrage. 
MAJOR BARRAGES OF THE COUNTRY;
JINNAH BARRAGE; 1946
Most of the sind sagar doab was unproductive wasteland known as the thal desert before the construction of the jinnah barrage  on the indus river near kalabagh in 1946.The thal canal system which draws water from the barrage has turned parts of the desert into fertile cuktivated land.And in the northwest  of peshawar provides irrigation for food crops and fruit orchads in the peshawar valley and is designed to produce 240,000 kilowatts of electricity.In the plains region the jinnah barrage controls the system of canals in the thal project organized  in 1949.The project which irrigates a former desert area is aimed at expanding agricultural developing rurak industry and provide commercial activity to the local people.
CHASHMA BARRAGE;
Chashma barrage wetland site is located at indus monsoon forest some 25 km southwest of mianwali punjab pakistan. The site comprises a  large barrage, a water storage reservivor and series of embankments serving as flood bounds which divide the reservoir into five shallow lakes at low water levels.......

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