Dear Sir, With all the respect, I would like to inform you that we have been working with groundwater development, groundwater irrigation and ma...

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Dear Sir, With all the respect, I would like to inform you that we have been working with groundwater development, groundwater irrigation and management in barind area of Bangladesh since 1986. It is a drought prone area located in the north-west region of the country where rainfall is remarkably lower than the country average. The annual average rainfall of the country is 2500 mm while it is within the range of 1200-1400 mm in the area. Major rainfall occurs in the month of June to September. There are many re-excavated canals in this area. During rainfall, rain water comes in these canals as run-off carrying huge mud from the surrounding fields. So the canal water is turbid. This canal water can be used for artificial recharge purpose. It may be mentioned here that other than rain water surface water sources are very limited. The upper 50-100 ft is clay soil and the aquifer is not so good. As the surface water sources are very limited so, groundwater is mainly used for irrigation. Deep Tubewell is used for withdrawing groundwater for irrigation and drinking water. As a result groundwater table in some area is going down year to year. Therefore, artificial recharge is necessary. In many parts of the world, lots of works have been done on 'artificial recharge of groundwater. I have intention to receive a training on this issue including field visit of the physical works.If any organization has such training programme, please give me an opportunity. Thanking You Md. Iquebal Hossain

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3 Comments

  1. Dear Iquebal HossainThanks for raising such an emerging issue on this network. I know the Barind region of Bangladesh heavily relies on GW (groundwater) irrigation; therefore, a sharp declining in GWL (groundwater level) has been reported in many documents.I think before thinking about artificial recharge, a pilot study may be conducted to understand the actual GW dynamics of the region. At least two sites can be selected for the study: (i) one site would be where GW shows less fluctuation and (ii) another site would be where high GW fluctuation is evident. This may be achieved by analysing observed GWL data.
    Later, a physics-based GW modelling study may be conducted to understand the real local GW dynamics. This approach would requires reliable field data.
    I think such an experiment can explore the potentiality of GW recharge or other undiscovered facts. So far I know in Bangladesh such a sophisticated research work has yet to be done.
    Thanks.Mizan

  3. Hello Iquebal,

    Unfortunately, I am not aware of any opportunity as such. You see I am astonished no pilot trial of my concept has been carried out so far. Yes, you have rightly pinpointed the problem, in your country. But, in wadis having seasonal streams, out of raining, getting deeper and deeper, out of their beds erosion and carrying away all top precious soils from upstream areas and hinterlands. There are innumerable numbers of such unattended wadis everywhere, which could be turned into good sources of the stored seasonal rainwater, capable of gravity flowing, without needing electrical power bringing up the water from deep wells.

    Thanking for commenting,
    Mashallah