Browsing by Author "Abubakar, A. E."

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    Assessment of Groundwater Quality for Irrigation Purposes in parts of Minna Sheet 164, North-Central Nigeria
    (Nigerian Association of Hydrogeologists (NAH) Book of Abstract, 2022-11) Ameh, I. M.; Ibrahim, H. A.; Amadi, A. N.; Dan-Hassan, M. A.; Omanayin, Y. A.; Abubakar, A. E.
    Assessing groundwater quality for sustainable agricultural through irrigation farming cannot be over-emphasized. Groundwater quality assessment for irrigation purposes was carried out in part of Minna Sheet 164, North-central Nigeria. Borehole samples were collected from boreholes and sent to the laboratory for the following analysis; pH, total dissolved solid and electrical conductance, calcium, magnesium, sodium and potassium, carbonate, sulphate, chlorine and bicarbonate. The pH ranged from 6.5 to 7.4, total dissolved solids varied from 20.4 mg/L to 124.5 mg/L while the electrical conductivity varies from 32.5 µs/cm to 250.0 µs/cm. the concentrations of these physical parameters are important criteria for suitability of water for agricultural purposes as water with low pH, high values of electrical conductivity and total dissolved solids is not good for irrigation. Also, the results of the major cations and anions were converted to meq/l from mg/l and used to determine the following index properties for irrigation water; Sodium Adsorption Ration, Soluble Sodium Percentage, Magnesium Adsorption Ratio, Plasticity Index, Residual Sodium Bicarbonate and Kelly’s Ratio. The values of the computed irrigation quality parameters are within their respective allowable limit for good to excellent water for irrigation use. The study has established that groundwater resources within the study area are suitable for irrigation. It is therefore recommended farmers in these localities should be sensitized to explore groundwater resources in their domain through hand-dug wells or boreholes to supplement the short-lived rain-farming. This will ensure an all year-round farming and availability of farm products and guaranty food security in the state.
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    Investigation of Some Factors Responsible for Gully Erosion Activities along River Yashi, Minna, North-Central Nigeria
    (Environmental Technology & Science Journal (ETSJ), 2016-06) Abdulfatai, I. A.; Okunlola, I. A.; Salihu, H. D.; Omanayin, Y. A.; Abubakar, A. E.
    Investigation of some factors contributing to the propagation of gully erosion along River Yashi, Minna, North-Central Nigeria has been conducted. Field observations of anthropogenic factors and geochemical properties of soil along River Yashi were determined. The anthropogenic factors observed to contribute to the gully growth include soil excavation along the river bank and on the river bed, building on the flood plain and farm practices. Geotechnical field index properties of soil were determined followed by some laboratory index and performance tests. The outcome of the investigation indicated that; the natural moisture content varied from 8.49 to 18.21 % with an average of 12.93 %; the uncompacted bulk density (UBD) is between 0.98 to 1.23 kg/m3 with an average of 1.10kg/m3 and the compacted bulk density (CBD) is from 1.27 to 1.52kg/m3 with an average of 1.38kg/m3; the specific gravity varies through 2.15 to 2.68 and an average of 2.35; the sieve analysis result showed that coefficient of uniformity (Cu) is from 0 to 20.45 with an average of 7.63 while coefficient of curvature (Cc) is from 0 to 1.01 with an average of 0.64; the plasticity index extend from 0 to 5.63% while the average is 5.54%; the compaction result shows that the optimum moisture content (OMC) varies from 9.90 to 12.39% with an average of 11.39% while the maximum dry density (MDD) ranges from 2.14 to 2.42mg/m3 with an average of 2.2mg/m3; the triaxial shear test result shows that the angle of internal friction (AF) is from 6° to 11° with an average of 9° and the cohesion (C) is from 19 to 32kg/m2; the permeability ranges from 1.93 x 10-3 to 2.49 x 10-3cm/sec and the average is 2.14 x 10-3. The results of geotechnical tests show favourable soil condition for gully erosion growth. Slope stability, construction of rip-rap with weeping holes, cultural or vegetation method among others has been suggested as control measures.