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Assessment of Aquifer Exploitation Due to Irrigation During Dry Season at Some Micro-basins

Dr. M. H. Ali
SSO
BINA

M. A. Rahman
SSO
BINA

M. H. Zaman
SO
BINA

Abstract/ Executive Summary:

The study was conducted at BINA sub-stations of Ishurdi, Magura, Rangpur, Satkhira and BINA Head-quarters, Mymensingh to assess the surface and ground water withdrawal pattern for its sustainable use. Observation wells were installed earlier at BINA sub-stations at Ishurdi, Magura, Rangpur and BINA head-quarter, Mymensingh. Using water level indicator, WT data were monitored fortnightly which were then interpreted to see the seasonal as well as yearly WT dynamics. Long-term (1992-2013) water table data were graphically presented and analyzed. Monthly WT fluctuation pattern in the yearly cycle of 2012-13 (June 2012 to May 2013) showed within the suction limit of STW (< 8m) at Rangpur and Magura, but it went below the suction limit at Ishurdi during March to June. On the other hand at Mymensingh, maximum WT sharply went below the suction limit from January and on-ward till the onset of monsoon (June/July). Long-term yearly WT fluctuation at BINA Head-quarters at Mymensingh and its sub-stations showed that at Mymensingh the maximum depth to WT went below the suction limit of STW from 1992. But at Ishurdi, it was within the suction limit up to 2007 which then had a transition state and from 2010 it went below the suction limit of STW. At other locations, though some data missing, it was within the suction limit of STW.

Keywords: Sustainability, Groundwater, Aquifer mining, Recharge

Location: Ishurdi, Magura, Rangpur, Satkhira, Mymensingh

Start Date: 00-00-1992

End Date: 00-00-2013

Program Area: Resource Development and Management

Commodity: Groundwater

Objectives:

To assess the surface and ground water withdrawal pattern for its sustainable use.

Methodology:

Observation wells were installed earlier at BINA sub-stations at Ishurdi, Magura, Rangpur and BINA head-quarter, Mymensingh. Using water level indicator, WT data were monitored fortnightly which were then interpreted to see the seasonal as well as yearly WT dynamics. Long-term (1992-2013) water table data were graphically presented for the above locations and evaluated.

Source of Information: Annual Report 2012-13, Bangladesh Institute of Nuclear Agriculture, pp.170-172

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

At Mymensingh, the maximum depth to WT went below the suction limit of STW from 1992. But at Ishurdi, it was within the suction limit up to 2007 which then had a transition state and from 2010 it went below the suction limit of STW. At Rangpur, Magura, Satkhira locations, it was within the suction limit of STW.

Knowledge Management: Report/Proceedings