18-APR-2016: Professor Javed Alam, Department of Civil Engineering, Aligarh Muslim University presented a paper entitled 'Effect of Submergence on Groundwater Recharge: An Experimental Study' at the 4th India Water Week (IWW- 2016) organized by Ministry of Water Resources, Govt of India, held at Vigyan Bhawan, New Delhi.
In his research paper, Professor Alam discussed that apart from the river water available in the country, groundwater forms an important source of water for drinking, irrigation, industrial and other uses and is a key element for development. He said that increased population, industrialization and decrease in rainfall recharge area accounts for depletion of groundwater, the excessive withdrawal of which has resulted in lowering of water table.
Professor Alam informed that in the present experimental study, conducted on soil profile of Civil Lines, Aligarh, it was observed that due to clayey nature of top soil, the percolation of water gets restricted and even after sufficient time, water does not reach the first strata i.e. first sand layer below the ground level. He told that an effort was made by replacing top soil with more pervious material such as sand to monitor water seepage at the outlet. Professor Alam pointed out that it was observed that the top soil should be replaced by sand up to a depth of 3/4 of first strata in order to enable rainwater to reach it.
Professor Alam mentioned that the recharge from surface submergence is a natural process which helps in groundwater replenishment, the heavy reliance on which is now approaching its limit as an increasing number of aquifers have reached unsustainable levels owing to exploitation.