TREND ANALYSIS OF GROUNDWATER LEVEL IN RAJSHAHI, BANGLADESH
M Islam*, TN Bushra and MI Hossain
Journal of the Sylhet Agricultural University, Volume 9, Issue 2, 2022, Pages 213-224
In Bangladesh, people mostly depend on groundwater to satisfy the demand for domestic and agricultural water supplies. Insufficient surface storage and successively falling groundwater levels have created a dreadful situation in the Northwestern region. The study aims to analyze and predict the groundwater level in the Rajshahi district. Mean monthly rainfall data from 2009 to 2020 and groundwater level data from 1995 to 2020 were collected from Barind Multipurpose Development Authority for this study. “MAKESENS” software was used to analyze the trend of rainfall, depth to the groundwater table, and prediction of the groundwater table. Trend analysis showed the water table depth had increased drastically in all the observation wells (except Gopalpur 1) and increased 2.46 times higher in Haripur within 26 years. Rainfall variation in the study area was very irregular, having the highest rainfall in 2020 and the trend line showing the slightest increment in annual rainfall. Most of the wells showed an increasing trend in the depth to water table with the decrease in rainfall. On the contrary, in 2015, the well of Godagari Upazila showed that the depth to water table increased although there was maximum rainfall. The prediction for the year 2040 has implied that if the trend continues , the depth of the groundwater table will be 2-4 times higher, maximum increment in Haripur (18.056 m). The result of this study will be a scope to safeguard the groundwater to ensure the sustainability of water resources in the Rajshahi district.
Prediction, MAKESENS, Rajshahi District
Cite this article
M Islam*, TN Bushra and MI Hossain. 2022. TREND ANALYSIS OF GROUNDWATER LEVEL IN RAJSHAHI, BANGLADESH, Journal of the Sylhet Agricultural University 9(2): 213-224.