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Study of Groundwater Levels for Irrigation in Selected Areas of Jessore Region

Kshirode C. Roy
Principal Scientific Officer
FMP Engg. Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur 1701, Bangladesh.

Abstract/ Executive Summary:

The study of groundwater level is very crucial in today's irrigated agriculture in Bangladesh since in many areas groundwater levels decline to such an extent that manual and centrifugal pump cannot lift water toward the end of the Rabi season. Before making a conclusion on the perpetual decline of groundwater level and its over exploitation, it is necessary to monitor it. In view of the above, a study was undertaken to monitor the groundwater levels in three randomly selected observation wells in Jessore, Magura and Meherpur districts. Hydrographs of observation wells and rainfall were made and analyzed. From the study it was concluded that groundwater levels were not perpetually declining, that the lowest groundwater levels were well within the suction limits of manual and centrifugal pumps and that the groundwater resources of the region were not over-exploited.

Keywords: Groundwater, Irrigation, Pumps

Location: Jessore, Magura and Meherpur

Start Date: 00-01-1984

End Date: 00-04-1995

Program Area: Crop-Soil-Water Management

Commodity: Groundwater, Irrigation scheduling

Objectives:

1. To assess the groundwater resources of three selected areas of Jessore region.

2. To investigate whether groundwater level was perpetually declining and whether it was within the suction limit of manual and centrifugal pumps.

Methodology:

Groundwater level data from January 1984 to June 1992 were collected from Bangladesh Water Development Board (BWDB). One observation well, having complete records for the study period, from each district of Jessore, Magura and Meherpur was randomly selected. Rainfall data were also collected from BWDB from January 1984 to April 1995. These data were collected from the rainfall stations closest to the observation wells. The groundwater observation wells and rainfall stations. It is recognized that rainfall has significant variation from point to point. The selected rainfall stations are not very far from observation wells as can be seen from their latitudes and longitudes. Therefore, the variation of rainfall between the rainfall station and the observation well station can be neglected. Though Dogachhia is in Kotwali thana, it is closer to Chowgachha than Jessore. Therefore, the rainfall data of Chowgachha were analyzed. Weekly GWL and daily rainfall data were available. Therefore, daily rainfall data were added to obtain weekly total rainfall corresponding to weekly GWL data. The hydro graph of the observation wells and rainfall were made for all three observation wells.

Source of Information: Journal of the Institution of Engineers, Bangladesh; Agricultural Engineering Division, Vol. 25/AE, No.1, Dec. 1998

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

From the study of groundwater levels in randomly selected observation wells in re, Magura and Meherpur districts, it be concluded that groundwater levels not perpetually declining, that the groundwater levels were within the on limit of manual and centrifugal p and that the groundwater resources the selected areas are not being over-exploited.

Knowledge Management: Journal