Tuesday, 21 May 2013
|Conservation of Water|
|Written by CAPT AMAR JEET KUMAR|
|Tuesday, 25 August 2009|
Of total water resources at global level, about 97.5 % is of salty water in ocean and only2.5 % is fresh, of this 75 % lies frozen in the Polar Regions, 22.6 % is at present as ground water, some of which lies too deep. So only a small fraction is to be found under ground aquifers and this is what constitutes the fresh water. With the projected population of 1.7 billion by 2050 in India and with no scope of expansion in the net cultivated area which is static around 140-143 million hectares during the last 3 decades, the undisputed role of water in meeting the needs of food, fuel and fiber is obvious. The recent report of the Planning Commission reported that the demand of ground water to go up to 813 BCM ( billion cubic meter) by 2010, 1093 BCM by 2025 and 1447 BCM by 2050. Only 433 BCM of ground water annually replenishable. So far, there is not much effort to recharge the ground water with surplus run water off water available during the rainy season by adopting Rain Water Harvesting System. There is a need to harvest rain water at all levels so that the stored rain water can be used for all purposes including drinking purposes by installing a UV filter.
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