IMPACT OF CLIMATE CHANGE AND VARIABILITY ON GROUND WATER WITHDRAWAL IN MINNA METROPOLIS NIGER STATE NIGERIA

Abstract

This study examined the potential impact of climate change and variability on ground water withdrawal in Minna metropolis Niger state Nigeria. The methods of data analysis include SPI, multiple regression and correlation coefficient. The results of the study reveals that the annual mean temperature have a significant effect on average depths in the water table correlated with 0.371 and the annual mean precipitation which has a negative correlation with the average depths in the water table correlated -0.072 that is ground water withdrawal have 37.1% dependency on the mean annual temperature and -7.2% dependency on ground water withdrawal. This indicates that the annual mean average temperatures are positively moderate in terms of correlation with groundwater withdrawal and the annual mean precipitation is negatively not moderate in terms of correlation with groundwater withdrawal in Minna metropolis, Minna Niger state. Its therefore recommended that the government of Niger state should come up with a legislative body that will be monitoring the depth of the groundwater as depletion is taking place as a result of withdrawal.