Assessment of chemical quality of three streams under different agricultural land systems in Obafemi Awolowo University Ile-Ife, Nigeria

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

doi:10.1080/02772240802615066

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…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%

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: Introductionmentioning

confidence: 99%

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

Aboyeji

Ogunkoya

2015

Appl Water Sci

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“…There have been a number of studies on the quality of surface and groundwater for domestic and irrigation purposes in the study area (Adebisi, 1981;Ige et al, 2008;Jaji et al, 2007;Ogunfowokan et al, 2009;Ogunkoya and Adejuwon, 1990;Talabi and Tijani, 2013). Little is, however, known about the quality of groundwater of inland valley eco-systems of the study area, particularly in relation to agricultural utilisation.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Groundwater Quality of Selected Inland Valley Agro-ecosystems for Irrigation in Southwest Nigeria

Aboyeji

Ogunkoya

2015

EREM

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The study assessed the quality of groundwater of 6 inland valley (IV) agro-ecosystems with a view to establishing their characteristics for cropping in the derived savannah of southwest Nigeria. Water samples were collected in piezometers during the rainy and dry seasons and analysed for physicochemical and heavy metal properties. Major water quality indices and comparison with stipulated standards were used to determine the usability of the waters for irrigation. The study showed that the waters were generally neutral to slightly alkaline, with the dominance structure of the major cations and anions in the order of Na + > Ca 2+ > K + > Mg 2+ and Cl-> SO4 2-> HCO3-> CO3. The concentration of heavy metals was generally within the recommended limits for most crops grown in the study area. Major water quality indices (sodium adsorption ratio, soluble sodium percentage, total dissolved solids, permeability index, magnesium adsorption ratio, Kelly's ratio and residual sodium bicarbonate) are generally within the levels acceptable for crop irrigation. Kruskal-Wallis H test (2-tailed) showed that there was no statistically significant difference in the water quality parameters/indices between the inland valley sites, P = 0.935. The groundwater of inland valley agro-ecosystems of the study area is generally suitable for agricultural utilisation.

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

2012

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In this study, three streams-Amuta, Agbogbo and Abagbooro were examined for salinity and sodium hazards and suitability of the water for irrigational purpose. The three streams are located within areas of three different agricultural practices and land uses. Water samples from the streams were collected twice a month for 1 year. Irrigation water quality parameters assessed included pH, electrical conductivity (EC), sodium adsorption ratio (SAR), percentage sodium, permeability index and potential salinity. Water samples were analyzed using standard chemical procedures. Results of the irrigation water quality parameters studied showed that water samples from the three streams do not exhibit toxicity problem in relation to salinity and sodium hazard. Although the data obtained for the three catchment areas for pH, EC and SAR were closely related, least concentrations of these irrigation water indices were obtained for Abagbooro stream where there is secondary forest; highest concentrations were found in Agbogbo stream and moderate values were obtained for water from Amuta stream where subsistent and mechanized farming are practiced, respectively.

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Assessment of chemical quality of three streams under different agricultural land systems in Obafemi Awolowo University Ile-Ife, Nigeria

Cited by 6 publications

References 12 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

Assessment of Groundwater Quality of Selected Inland Valley Agro-ecosystems for Irrigation in Southwest Nigeria

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

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