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Assessment of Groundwater Resources and Safe Utilization in Different Geo-hydrological Regions

Dr M A Rashid
CSO & Head
Irrigation and Water Management Division, BRRI.

Shahana Parveen
Senior Scientific Officer
Irrigation and Water Management Division, BRRI.

Abstract/ Executive Summary:

Objective of the study was to determine the fluctuation of groundwater level over time and its relationships with rainfall and to determine water quality including arsenic. From the study it was found that the groundwater is going down day by day. Therefore, groundwater should be used carefully and judiciously to avoid the future problem.

Keywords: Groundwater, Geo-hydrological regions, Rainfall, Arsenic

Location: Gazipur, Rajshahi, Rangpur, Comilla, Hobigonj, Bhanga and Sonagazi . All Regional station, BRRI

Start Date: 01-07-2008

End Date: 30-06-52009

Program Area: Crop-Soil-Water Management

Commodity: Groundwater

Objectives:

• To determine the fluctuation of groundwater level over time and its relationships with rainfall • To determine water quality including arsenic

Methodology:

Available water level recorder was used for measuring groundwater fluctuation. Rainfall data was collected from nearest meteorological stations. Data were recorded weekly from BRRI farm Gazipur and different Regional stations.

Source of Information: Proceedings of BRRI Annual Internal Research Review, 2008-2009

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The study was conducted at BRRI farm Gazipur, Rajshahi, Rangpur, Comilla, Hobigonj, Bhanga and Sonagazi. Maximum and minimum groundwater levels at different BRRI stations were monitored during 2008-09. During this period maximum lowering of groundwater was observed in March/April and minimum in September/October. The highest depth was found in Gazipur and lowest in Sonagazi area. The results showed that the groundwater level at BRRI farm Gazipur was lower in 2008-09 than the previous years which indicated that the groundwater table is gradually declining year after year. The lowering might be due to increased pumping demand and scanty rainfall from November to March. The study revealed that Gazipur. Rajshahi, Comilla, Bhanga and Kushtia area are suitable for deep tubewell and Rangpur, satkhira and sonagazi are suitable for shallow tubewell based irrigation development.

Knowledge Management: Report/Proceedings