Iron Speciation in Selected Agricultural Soils of Peninsular Malaysia

Habibah, J.; Khairiah, J.; Ismail, B. S.; Kadderi, M.D.

doi:10.3923/jest.2014.154.165

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…This may also lead to the process of laterization and iron accumulation which has been reported to lead to massive assemblage of sesquioxides [11]. The high nature of extractable Fe is consistent with the acidic nature of the soil, as the solubility of Fe increases at low pH (Alemayehu et al [12] and Habibah et al [13]. Significantly higher Zn and Cu in the lowland soils corresponds with a higher clay content, higher organic matter and carbon as well asnitrogen content in the same location.…”

Section: Resultsmentioning

confidence: 59%

Variability of Soil Extractable Micronutrients in the Upland and Lowland Topoposition Soils of Gubi Village, Bauchi State, North Eastern Nigeria

Biwe

Nanmwa

Hassan

2020

AJEE

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The aim of this study was to assess the variability of extractable micronutrients in the varying topoposition soils of Gubi village. Four profile pits were dug at each of the designated topopositions making a total of eight profiles. The profiles were dug at the crest, upper slope, middle slope and valley bottom positions of the two toposequences and were named URFGU1, URFGU2, URFGU3 to URFGU4 and URFGL1. URFGL2, URFGL3 to URFGL4 for upland and lowland respectively. The content and profile distribution of extractable micronutrients copper (Cu), Zinc (Zn), manganese (Mn) and Iron (Fe) were extracted using 0.1 m HCl solution and determined using atomic absorption spectrophotometer (AAS) at appropriate wavelengths (Ca at 247 nm, Zn at 214 nm, Mn at 279 nm and Fe at 248 nm. Data generated was statistically analyzed using analysis of variance in nested experimental design. The significance of difference between treatments was determined using fishers LSD. Means that were significantly different were separated using the Least Significant Difference (LSD). The result reveals that Copper (Cu), iron (Fe) and manganese (Mn) varied significantly due to location. Iron and manganese were significantly higher in the upland soil (47.35 and 47.50 mg/kg respectively) than in the lowland soil (17.67 and 27.38 mg/kg respectively). The lowland soil had significantly higher Cu (1.31 mg/kg) than the upland soil (0.37 mg/kg). Zinc (Zn) did not vary significantly due to location however the lowland soil (0.86 mg/kg) had a higher Zn content than the upland soil (0.26 mg/kg).

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Section: Resultsmentioning

confidence: 59%

Variability of Soil Extractable Micronutrients in the Upland and Lowland Topoposition Soils of Gubi Village, Bauchi State, North Eastern Nigeria

Biwe

Nanmwa

Hassan

2020

AJEE

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“…These released metals are being absorbed with the help of Mn-oxyhydroxides formation on the ambient and diluent SS while replacing Fe and Al-hydroxides formed in the upstream section. In the presence of organic acids generated from their respiration, Mn hydroxides have more reactive properties than Al hydroxides (Qin et al 2018 ; Habibah et al 2014 ), which might be the reason behind such absorption. With this effect, Al and Fe are removed from the water column by the aggregation and precipitation of diaspore in distinct flocculation zones because of increasing ionic strength, as the water is subjected to steep pH and salinity gradients (Ferguson and Eyre 1999 ), whereas Se goes to dissolved phase with such effect and selecting an increase in water during SWM.…”

Section: Resultsmentioning

confidence: 99%

“…6 d). This station falls under the high mixing zone in this season and higher seawater influence leading to respiration of the mentioned organic matter, thus leading to the dissolution of Co and Ba, while making Mn oxyhydroxides more reactive with a generated organic acid in the process (Qin et al 2018 ; Habibah et al 2014 ) which leads to the absorption of Zn. Factor 3 has significantly higher loading of TSS and Fe and negative loading of Cd indicating the different origins of the metals, where most of the Fe concentration is geogenic and Cd concentration acquired from the SS is from anthropogenic sources like agricultural inputs.…”

Section: Resultsmentioning

confidence: 99%

Spatial and temporal variations of geochemical processes and toxicity of water, sediments, and suspended solids in Sibuti River Estuary, NW Borneo

Gantayat

Prasanna

Nagarajan

et al. 2023

Environ Sci Pollut Res

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A comprehensive geochemical study was conducted in the Sibuti River estuary by considering water, suspended solids (SS), and sediment samples from 36 stations during southwest monsoon (SWM) and northeast monsoon (NEM). In this study, the distribution of in situ parameters, major ions, nutrients, trace metals, and isotopes (δD, δ18O) were analyzed in water samples, whereas sediments and SS were studied for trace metals. The distribution revealed that suspended solids were the major carrier of Cd, Zn, and Mn, whereas sediments worked as a major source of Co, Cr, Ba, Se, Cu, and Pb. Na-Cl water type and ion exchange dominated the lower part of the estuary during both seasons. However, the mixed mechanism of Ca–Cl, Ca–Mg–Cl, and higher weathering indicated reverse ion exchange in the intermediate and upper parts of the estuary. Isotopic signatures of δD and δ18O in estuarine water indicate that the precipitation over the Limbang area dominates during SWM, whereas higher evaporation was confirmed during NEM. The factor analysis revealed that seawater influence in the estuary majority controlled the water chemistry irrespective of seasons. Major ions were mainly regulated by the tidal influence during the low flow time of the river (SWM), whereas the mixing mechanism of weathering and seawater controlled the concentrations during NEM. Nutrients such as NO3, SO42−, NH3, and NH4+ mainly originated from the agricultural fields and nitrification along with ammonification were responsible for the recycling of such nutrients. Trace metals except Cd were found to be geogenic in nature and originating mainly from the oxidation of pyrites present in the sandstone and mudstones of the Sibuti Formation. Redox condition was catalyzed by microorganisms near the river mouth, whereas Al-oxyhydroxides and Fe-oxyhydroxides complexes in the intermediate and upper part under oxygenated conditions controlled the absorption of metals. Overall, the estuary was found to be absorptive in nature due to ideal pH conditions and was confirmed by the saturation index (SI) of minerals.

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Potentially toxic elements distribution, petrography, and synchrotron characterization in polluted soils around industrial complex, Central Jordan

El-Hasan,

Aldrabee,

Harfouche

2024

Journal of Hazardous Materials Advances

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Iron Speciation in Selected Agricultural Soils of Peninsular Malaysia

Cited by 6 publications

References 14 publications

Variability of Soil Extractable Micronutrients in the Upland and Lowland Topoposition Soils of Gubi Village, Bauchi State, North Eastern Nigeria

Variability of Soil Extractable Micronutrients in the Upland and Lowland Topoposition Soils of Gubi Village, Bauchi State, North Eastern Nigeria

Spatial and temporal variations of geochemical processes and toxicity of water, sediments, and suspended solids in Sibuti River Estuary, NW Borneo

Potentially toxic elements distribution, petrography, and synchrotron characterization in polluted soils around industrial complex, Central Jordan

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