Salinity and sodium hazards of three streams of different agricultural land use systems in Ile-Ife, Nigeria

Ogunfowokan, A. O.; Obisanya, Joshua Funminiyi; Ogunkoya, O. O.

doi:10.1007/s13201-012-0053-2

Cited by 57 publications

(35 citation statements)

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“…It can be concluded that the concentration of trace metals in the waters of the inland valleys of the study area is non-toxic to plants and the waters are suitable for irrigated agriculture. The results are comparable to those obtained in previous studies in parts of southwest Nigeria (Jaji et al 2007;Ogunfowokan et al 2013). For example, Ogunfowokan et al (2013) found the overall mean levels of trace metals in three streams under different agricultural land systems to be 6.98, 0.27, 13.67 and 0.1 for Fe, Ni, Pb and Zn, respectively.…”

Section: Resultssupporting

confidence: 88%

“…The results are comparable to those obtained in previous studies in parts of southwest Nigeria (Jaji et al 2007;Ogunfowokan et al 2013). For example, Ogunfowokan et al (2013) found the overall mean levels of trace metals in three streams under different agricultural land systems to be 6.98, 0.27, 13.67 and 0.1 for Fe, Ni, Pb and Zn, respectively. Table 5 shows pattern of variation of major water quality indices (SAR, SSP, TDS and PI) in water samples for the months of May 2011, September 2011, November 2011, January 2012, and March 2012.…”

Section: Resultssupporting

confidence: 88%

“…Table 2), when measured along the suitability rating scale provided by Fipps (2003). The EC values are within the range of values reported for rivers in the same region (Ogunfowokan et al 2013;Talabi and Tijani 2013), and may suggest that the conductivities of waters of the inland valleys reflect the rock and soil mineralogy, and the degree of weathering in the respective catchments. Also, the lower conductivity values obtained in wet season samples reflect the dilution effect of rainfall.…”

Section: Resultssupporting

confidence: 80%

“…Thus, Ogunkoya and Adejuwon (1990) studied the water chemistry of some rivers draining the basement complex in SW Nigeria and found that the water chemistry of the rivers reflects the chemistry and susceptibility to weathering of rocks drained by the rivers. Ogunfowokan et al (2009) and Ogunfowokan et al (2013) assessed the chemical quality of three streams under different land systems in Obafemi Awolowo University IleIfe, SW Nigeria and observed that levels of physicochemical parameters including trace metals depended on the type of agricultural inputs and practices in the three catchments studied. They also concluded that water samples from the three streams did not exhibit toxicity problems in relation to salinity and sodium hazard.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of surface water quality of inland valleys for cropping in SW Nigeria

Aboyeji

Ogunkoya

2015

Appl Water Sci

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Inland valley agro-ecosystems which are a category of wetlands have potential for sustainable crop production relative to uplands. A major challenge to their utilisation in the study area is their heterogeneity in hydrology, morphology, soil types and agro-economy. The study assessed the surface water quality of three typologies of the agro-ecosystems-amphitheatre-like valley-heads (Am), valley-side (VS), and low depression (LD)-for cropping. Surface water of six sites were sampled during the wet and dry seasons. The physicochemical properties and metal concentrations of the samples were analysed. Descriptive statistics and water quality indices were used to assess the suitability of the waters of the agro-ecosystems for cropping. Results showed that the valleys have neutral to slightly alkaline waters. Values of physicochemical parameters are generally within the acceptable range for cropping. The concentration of major cations varied across the inland valley types, but exhibited similar characteristics within each valley. The dominance of the major cations is in the order of Na [ Ca [ K [ Mg. ANOVA results indicated that there is no significant difference in the concentration of heavy metals across the valleys (F = 2.044, p = 0.138, a = 0.05). Generally, most of the physicochemical parameters and trace metals have low concentrations and are non-toxic to plants. Values of water quality indices (sodium adsorption ratio, soluble sodium percentage, total dissolved solids and permeability index) indicated that the concentrations of minerals in waters across the valley typologies are generally within permissible limits for cropping.

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Section: Resultssupporting

confidence: 88%

Section: Resultssupporting

confidence: 88%

Section: Resultssupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

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Assessment of surface water quality of inland valleys for cropping in SW Nigeria

Aboyeji

Ogunkoya

2015

Appl Water Sci

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“…The concentration of highly soluble salts increases the salinity of the soils, whereas low soluble salts precipitate and accumulate into the soil for successive irrigation (Ogunfowokan et al 2013). The suitability of water for irrigation is described by Doneen (1964) based on potential salinity.…”

Section: Potential Salinitymentioning

confidence: 99%

Hydrochemical characteristics and quality assessment of groundwater in Amaravathi river basin of Karur district, Tamil Nadu, South India

Ahamed

Loganathan

Jayakumar

2015

Sustain. Water Resour. Manag.

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The hydrochemical study of groundwater in Karur district of the Amaravathi River basin has been carried out to assess the major ion chemistry and groundwater quality for domestic and drinking purposes. Twenty-four groundwater samples were collected, processed, and analyzed for various physico-chemical parameters such as pH; electrical conductivity; total dissolved solids; total hardness; cations such as calcium, magnesium, sodium, and potassium; anions such as bicarbonate, chloride, sulfate, fluoride, nitrate, and phosphate in the laboratory using the standard methods given by the American Public Health Association (Standard methods for the examination of water and wastewater, 21st edn. American Public Health Association, Washington DC, 2005). For quality assessment, the results were compared with water quality standards prescribed by the Bureau of Indian standards (Indian standards specification for drinking water 15:10500. Bureau of Indian Standards, New Delhi, 2003) Concerning water for irrigation purposes, parameters such as percent sodium (% Na), sodium adsorption ratio (SAR), residual sodium carbonate (RSC), chloro-alkaline indices (CAI I and CAI II), permeability index (PI), magnesium hazard (MH), Kelley's ratio (KR), USSL diagram, Gibbs' ratio (GR), and Wilcox diagram were calculated on the basis of chemical data to evaluate the current status of groundwater in the Amaravathi River basin. Parameters like MH (74 %), KR (75 %), RSC (95 %), and PI (69 %) in all three seasons indicate that the samples are suitable for irrigation and remaining are unsuitable. From USSL diagram, the result reveals that the samples fall in C3-S1 and C4-S1 indicate high to very high-salinity and lowsodium hazards. Wilcox diagram revealed out of 24 samples, sample no. 7, 8, and 11 in pre-monsoon, monsoon, and postmonsoon seasons fall under doubtful to unsuitable and 9 fall under unsuitable zone. The positive CAI values in 66 % samples in all three seasons indicate reverse ion exchange mechanism. The present study may be helpful for further studies concerning water quality issues in this area, where groundwater is a vital for drinking and other activities.

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Prediction of desalination time of saemangeum reservoir

Cho

Choi

et al. 2016

Irrigation and Drainage

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The Saemangeum Reservoir is located on the western coast of the Republic of Korea and is embanked by a 33.9 km sea dike. The Saemangeum River Basin consists of the Mankyeong and Dongjin river basins, which have an immediate influence on the hydrodynamic characteristics of the Saemangeum Reservoir. The objectives of this study are to simulate a series of temporal and spatial distributions of water temperature and salinity to estimate the required time for desalination of the Saemangeum Reservoir and to suggest possible timing for the first agricultural water supply. To achieve this objective, a hydrodynamic numerical model is calibrated and five conditions are considered for estimating the required desalination period. The simulated period for desalination is 2.0 ‐ 2.5 years considering the conditions of percolated seawater and leached salt from the reclaimed areas, while the period of desalination is expected to take more than five years considering the conditions of salt elution from the benthic layer. Under the conditions that rural water can mostly be supplied from the surface layer of the Saemangeum Reservoir, it is expected to supply water for agricultural use in three years after the desalination of the surface layer of the reservoir. Copyright © 2016 John Wiley & Sons, Ltd.

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Salinity and sodium hazards of three streams of different agricultural land use systems in Ile-Ife, Nigeria

Cited by 57 publications

References 4 publications

Assessment of surface water quality of inland valleys for cropping in SW Nigeria

Assessment of surface water quality of inland valleys for cropping in SW Nigeria

Hydrochemical characteristics and quality assessment of groundwater in Amaravathi river basin of Karur district, Tamil Nadu, South India

Prediction of desalination time of saemangeum reservoir

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