THE EFFECT OF IRRIGATION FARMING ON GROUNDWATER QUALITY: A CASE STUDY OF JIBIA IRRIGATION SITE, KATSINA STATE NIGERIA
THE EFFECT OF IRRIGATION FARMING ON GROUNDWATER QUALITY: A CASE STUDY OF JIBIA IRRIGATION SITE, KATSINA STATE NIGERIA
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Date
2018-04
Authors
ABUKUR, Abba Abdullahi
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Abstract
Groundwater quality has become an important water resources issue due to rapid increase in population, rapid industrialization, unplanned urbanization and increasing use of fertilizers and pesticides in farming. This study examines the effect of irrigation farming on groundwater quality in Jibia Local Government Area, Katsina State. Fourresearch questions and objectives as well as two null hypotheses were formulated to guide the study. The objectives were todetermine the physico-chemical properties of groundwater in the study area, examine the effect of distance from irrigation site to groundwater quality in the area, find out the effect of seasons on the physico-chemical properties of the groundwater and compare the groundwaterquality in the area with WHO/NSDWQstandards .Borehole and well water samples were taken from a distance ranging from less than 10m to a distance of greater than 150m away from the irrigation site. Seven (7) deep and two (2) shallow wells identified within the 0 to less than 10m range while twenty-four (24)boreholes and four (4) shallow wells were from above the marked ranged of 10-150m of which 6 water samples (4 boreholes and 2 shallow wells) from less than 10m to a distance of greater than 10m each were collected for laboratory analysis.Water samples collected from the wells were subjected to laboratory test using standard procedures to determine the physico-chemical properties which were presented in tables showing their means and standard deviations. t-test was used to test for differences between groundwater quality of wells close to and far away from irrigation site as well as difference between compare the physico-chemical properties of groundwater in the study area with the WHO (2011)/NSDWQ (2007) standard for domestic water qualityat 0.05 alpha level of significance. Findings from the study amongst others revealed that distance does not have any significant effect on the concentrations of measured physico-chemical properties of water in the study area as there was no significant difference between wells close to or far away from the irrigation site in all the physico-chemical properties of water in the study area except Chromium with a p-value of 0.00 less than the 0.05 level of significance.Also, there is no significant difference in almost all the physico-chemical properties of water from wells in the study area when compared to WHO (2011)/NSDWQ(2007) standards except for Calcium and Zinc which shows a significant value with p-values of 0.01 and 0.02 which are less than the 0.05 level of significance respectively.Although the result generally indicates that groundwater quality status is good for human consumption and may not pose health risk to the people,it was recommended amongst others that there is the need for continuous monitoring of groundwater to determine its quality status. This will serve as a guide to the public and water managers on action plans to be taken once the physico-chemical properties are found to exceed the permissible values given by the WHO and NSDWQ standards.
Description
A THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES, AHMADU BELLO UNIVERSITY, ZARIA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF MASTER OF SCIENCE DEGREE IN GEOGRAPHY DEPARTMENT OF GEOGRAPHYAND ENVIRONMENTAL MANAGEMENT FACULTY OF PHYSICAL SCIENCES AHMADU BELLO UNIVERSITY, ZARIA, NIGERIA
Keywords
THE EFFECT OF IRRIGATION FARMING,, GROUNDWATER QUALITY,, JIBIA IRRIGATION SITE,, KATSINA STATE,, NIGERIA,