Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Saline Ground Water Management in Manda Thana of Naogaon District, NW Bangladesh


Affiliations
1 Department of Geology, University of Dhaka, Dhaka 1000, Bangladesh
2 Dept. of Geological Sciences, University College, London, Gower Street London, WCIE 6BT, United Kingdom
     

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The study area is dependent on ground water for irrigation during the dry months of the year as sufficient surface water resources are not available. Occurrence of saline ground water in some parts of the area, particularly at Kashopara and Kasab unions. restricts the use of ground water for irrigation purposes. Ground water electrolytic conductivity (EC) monitoring and resistivity sounding show a distinct vertical ground water zoning with varying salinity, viz .. an upper zone (0-30 m) of relatively fresh Na/CaHCO3-type ground water with EC values <1000 μS/cm and a lower zone (below 30 m) of NaCI-type (brackish) ground water with EC values >2000 μS/cm. It is suggested that salinity prohlems in the affected area can be managed through minimum abstraction of saline ground water, proper selection of crops, land development and by changing methods of irrigation.

Keywords

Hydrogeology, Ground Water, Salinity, Ground Water Management, Bangladesh.
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  • Saline Ground Water Management in Manda Thana of Naogaon District, NW Bangladesh

Abstract Views: 181  |  PDF Views: 2

Authors

A. S. M. Woobaidullah
Department of Geology, University of Dhaka, Dhaka 1000, Bangladesh
K. M. Ahmed
Department of Geology, University of Dhaka, Dhaka 1000, Bangladesh
M. A. Hasan
Department of Geology, University of Dhaka, Dhaka 1000, Bangladesh
M. K. Hasan
Dept. of Geological Sciences, University College, London, Gower Street London, WCIE 6BT, United Kingdom

Abstract


The study area is dependent on ground water for irrigation during the dry months of the year as sufficient surface water resources are not available. Occurrence of saline ground water in some parts of the area, particularly at Kashopara and Kasab unions. restricts the use of ground water for irrigation purposes. Ground water electrolytic conductivity (EC) monitoring and resistivity sounding show a distinct vertical ground water zoning with varying salinity, viz .. an upper zone (0-30 m) of relatively fresh Na/CaHCO3-type ground water with EC values <1000 μS/cm and a lower zone (below 30 m) of NaCI-type (brackish) ground water with EC values >2000 μS/cm. It is suggested that salinity prohlems in the affected area can be managed through minimum abstraction of saline ground water, proper selection of crops, land development and by changing methods of irrigation.

Keywords


Hydrogeology, Ground Water, Salinity, Ground Water Management, Bangladesh.