Distribution and potential source evaluation of heavy metals in prominent soils of Accra Plains, Ghana

Eze, Peter N.; Udeigwe, Theophilus K.; Stietiya, Mohammed Hashem

doi:10.1016/j.geoderma.2010.02.032

Cited by 52 publications

(36 citation statements)

References 35 publications

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“…The results of our study are in agreement with correlation studies carried out in Egypt and Greece (Shaheen 2009) and Ghana (Eze et al 2010) on soil parameters such as pH, and SOC, which showed no significant relationships with heavy metal distribution. The lack of relationships between heavy metals and SOC has also been reported by others (Hernandez et al 2003).…”

Section: Soil Propertiessupporting

confidence: 91%

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Heavy metals concentration in soils under rainfed agro-ecosystems and their relationship with soil properties and management practices

Srinivasarao

Gayatri

Venkateswarlu

et al. 2013

Int. J. Environ. Sci. Technol.

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Heavy metals are governed by parent material of soils and influenced by the soil physicochemical properties and soil and crop management practices. This paper evaluates total heavy metal concentrations in rainfed soils under diverse management practices of tropical India. Vertisols (clayey soils with high shrink/swell capacity) had the highest concentrations of heavy metals. However, chromium (Cr) content was above the threshold value in Aridisol [calcium carbonate (CaCO 3 )]-containing soils of the arid environments with subsurface horizon development. Concentration increased at lower depths ([30 cm). Basaltic soils showed higher concentrations of nickel (Ni), copper (Cu) and manganese (Mn). Cadmium (Cd), cobalt (Co), Cu and Mn concentrations were higher in soils cultivated to cotton, whereas Cr concentration was above the threshold level of 110 mg kg -1 in food crop cultivated soils. As the specific soil surface is closely related to clay content and clay type, soil's ability to retain heavy metals is more closely tied to the specific surface than to the soil cation exchange capacity.

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Section: Soil Propertiessupporting

confidence: 91%

“…Correlation analyses of clay content with Eze et al (2010) who showed that among all the major soil properties examined in Accra Plains, Ghana, only soil clay content was significantly correlated with Cu and Zn concentrations (r = 0.57, p B 0.05). Studies by Aydinalp and Marinova (2003) (Table 5).…”

Section: Profile Distributionmentioning

confidence: 99%

Heavy metals concentration in soils under rainfed agro-ecosystems and their relationship with soil properties and management practices

Srinivasarao

Gayatri

Venkateswarlu

et al. 2013

Int. J. Environ. Sci. Technol.

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“…Although not significant, the slightly higher fixation of Zn observed in the subsurface soil could be partly attributed to higher clay content. Clay interaction with metal cations such as Zn, which could reduce the amount of plantextractable Zn, has been widely documented (Sparks, 2003;Eze et al, 2010;.…”

Section: Short-and Long-term Zinc Fixation Patternmentioning

confidence: 99%

Fixation kinetics of chelated and non-chelated zinc in semi-arid alkaline soils: application to zinc management

Udeigwe¹,

Eichmann²,

Menkiti³

2016

Solid Earth

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Abstract. This study was designed to examine the fixation pattern and kinetics of zinc (Zn) in chelated (ethylenediaminetetraacetic acid, EDTA) and non-chelated mixed micronutrient systems of semi-arid alkaline soils from the Southern High Plains, USA. Soils were characterized for a suite of chemical and physical properties and data obtained from extraction experiments fitted to various kinetic models. About 30 % more plant-available Zn was fixed in the non-chelated system within the first 14 days with only about 18 % difference observed between the two systems by day 90, suggesting that the effectiveness of the chelated compounds tended to decrease over time. The strengths of the relationships of change in available Zn with respect to other micronutrients (copper, iron, and manganese) were higher and more significant in the non-chelated system (average R 2 of 0.83), compared to the chelated (average R 2 of 0.42). Fixation of plant-available Zn was best described by the powerfunction model (R 2 = 0.94, SE = 0.076) in the non-chelated system, and was poorly described by all the models examined in the chelated system. Reaction rate constants and relationships generated from this study can serve as important tools for micronutrient management and for future micronutrient modeling studies on these soils and other semi-arid regions of the world.

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“…Principal component analysis is a multivariate statistical analysis used to group dependent variables to a fewer number of unrelated master variables often termed "components" and have been applied in various aspects in the study of soil chemical/geochemical properties (Sena et al, 2002;Micó et al, 2006;Eze et al, 2010;Fox & Metla, 2005). The PCA was focused on the rice systems (profiles 1-8), and the soil properties examined include pH, CEC, OM, clay content, EC, ESP, and soluble Na .…”

Section: Soil Property Grouping Using Principal Component Analysismentioning

confidence: 99%

Alterations in Soil Chemical Properties Induced by Continuous Rice Cultivation: A Study on the Arid Nile Delta Soils of Egypt

2015

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Changes in soil chemical properties resulting from continuous rice (Oryza sativa) cultivation on the Nile Delta soils of Egypt were examined. The eight soil profiles characterized for this study were designated as 0 (crop rotation without rice), 1 (crop rotation with rice after every 2 years), and 2, 3, 4, 5, 6, and 7 representing continuous rice cultivation for 2, 4, 8, 12, 15, and 20 years, respectively. Sampling was conducted at 0-20, 20-40, 40-60, and 60-80 cm depths for each profile and samples analyzed for a suite of chemical properties. Soil pH, salinity indicators [electrical conductivity (EC), and exchangeable sodium percentage (ESP)], as well as soluble and exchangeable cations and anions such as chloride and sulfate, all tended to decrease with years of continuous rice cultivation, with a number of significant (p < 0·05) differences observed. Cation exchange capacity (CEC) increased with years of continuous rice cultivation, with a 12% increase observed between 2-and 20-year continuous rice cultivation systems. Principal component analysis conducted on soil properties within the continuous rice cultivation systems (profiles 2-7) revealed two possible components, namely F1 (pH, EC, ESP, and soluble Na + , Mg 2+ , K + , Cl À , and SO 4 À2 ) and F2 (clay, organic matter, and CEC), which could be broadly associated to soil salinity and soil fertility, respectively. Findings suggested possible alterations in soil chemical properties by continuous rice cultivation practices on these Nile Delta soils of Egypt, Africa.

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Distribution and potential source evaluation of heavy metals in prominent soils of Accra Plains, Ghana

Cited by 52 publications

References 35 publications

Heavy metals concentration in soils under rainfed agro-ecosystems and their relationship with soil properties and management practices

Heavy metals concentration in soils under rainfed agro-ecosystems and their relationship with soil properties and management practices

Fixation kinetics of chelated and non-chelated zinc in semi-arid alkaline soils: application to zinc management

Alterations in Soil Chemical Properties Induced by Continuous Rice Cultivation: A Study on the Arid Nile Delta Soils of Egypt

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