Assessment of potentially reactive pools of aluminium in poor forest soils using two methods of fractionation analysis

Walna, Barbara; Spychalski, W.; Siepak, J.

doi:10.1016/j.jinorgbio.2005.06.026

Cited by 31 publications

(19 citation statements)

References 42 publications

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“…The thickness of each sample was 5 cm. Lithology and bulk chemical composition of the samples are summarised in Tables 1 and 2. Sequential extraction of Fe, Mn, K, Mg, Cu, Zn and Pb was performed on material dried at 60ºC and homogenised in an agate mortar according to the protocol described by Walna et al (2005). Air or oven drying of the samples at temperatures up to 105 ºC have been applied to remove interstitial water from sequentially extracted aquatic (lake and marine) sediments by many authors (Steiberg and TayaraniDastmalian, 1993;Kiratli and Ergin, 1996;Clark et al, 1998;Donahoe and Liu, 1998;Pempkowiak et al, 1999;TokalioÈlu et al, 2000;Ribeiro et al, 2008, Adekola et al, 2010and Oueslati et al, 2010.…”

Section: Materials and Methodologymentioning

confidence: 99%

Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Woszczyk

Spychalski

2013

Chemical Speciation & Bioavailability

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This article documents and interprets stratigraphical changes in fractionation of Fe, Mn, Mg, K, Pb, Cu and Zn in the Sa1/2 sediment core from a coastal freshwater lake, Lake Sarbsko (northern Poland). The elements were sequentially extracted from the samples to distinguish five geochemical fractions: exchangeable, acid-extractable, reducible, oxidisable and residual. The analyses revealed substantial variations in geochemical partitioning of the elements and showed no correlation between the fractionation patterns and lithology of the sediments. In the sediments of Lake Sarbsko, iron is mainly bound to sulfides. Potassium occurs in its residual form. Magnesium and zinc are associated with carbonates and aluminosilicates, while copper occurs in compounds with organic matter and sulfides. Lead is found in connection with aluminosilicates and, to a lesser extent, with sulfides and organic matter. Manganese is partitioned between the oxidisable, acid-extractable, and exchangeable fractions. Heavy metals and potassium display the overall tendency to reduce the contents of their residual forms towards the top of the depositional sequence. Fe, Mn, Mg and Zn were found to be the most susceptible to post-sedimentary mobilisation.

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Section: Materials and Methodologymentioning

confidence: 99%

Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Woszczyk

Spychalski

2013

Chemical Speciation & Bioavailability

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“…Other studies [42,46] point out that pyrophosphate also extracts an inorganic Al fraction of amorphous Al(OH) 3 precipitated on the surface, co-precipitated Al(OH) 3 and humic substances, absorbed polynuclear Al compounds, and hydroxy-interlayered Al. As follows from preliminary mineralogical examinations [59], the release of substantial amounts of aluminium in the Al pyr fraction may be due to aluminium from interlayer spaces of smectite; in vermiculite Al seems to be bound too strongly.…”

Section: Aluminium Bound To Organic Mattermentioning

confidence: 99%

“…This procedure consists in performing several single extractions of separate soil samples to determine the mobility and availability of the various forms. Detailed descriptions of methods of obtaining a few basic aluminium forms can be found in manuals [38,39]), as well as in articles [40][41][42]. By performing some simple calculations, these forms could be assessed in quantitative terms.…”

Section: Field Studymentioning

confidence: 99%

Composition and variability of soil solutions as a measure of human impact on protected woodland areas

Walna

2007

Open Chemistry

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Abstract:A study was made of the sandy and loamy soils of the woodland areas of the Wielkopolski National Park (Poland) affected by acid rain. The basic properties of the soils were determined, revealing their strong acidification, poor buffering power, and the possibility of aluminium release. An analysis was made of the content of soluble, exchangeable, organic, amorphous, and free forms of aluminium. The concentration of exchangeable aluminium exceeded that of the form dissolved in soil water several times to tens of times. In soil solutions Ca/Al ratios in some horizons show very low values that could induce a nutrient deficit. In the sandy profiles the ratio even drops below the critical level of 0.1. In the surface horizon the dominant cation at all the sites is the aluminium ion. An analysis of anions shows a dominance of sulphate and chloride ions. In autumn nitrites were recorded at all depth levels, while in spring only in the surface layers. The highest fluoride concentrations were found to occur in profiles situated the closest to the emission source of fluorine compounds. The markedly higher concentrations of ammonium than nitrate ions can lead to increased acidification and eutrophication of the soil.

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“…The chemical composition of the precipitation shows that the WNP has still a substantial influx of strong acids from atmospheric sources 2010). It undoubtedly contributes to the acidification of the topsoil, to a change in the composition of the soil solution (Walna 2006), to the leaching of cations indispensable for plant growth (Walna et al 2001) and to the mobilisation of metals (Walna et al 2005).…”

Section: Study Areamentioning

confidence: 99%

Heavy metals: their pathway from the ground, groundwater and springs to Lake Góreckie (Poland)

Walna

Siepak

2011

Environ Monit Assess

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The migration pathways of heavy metals derived from an area previously in agricultural use was investigated in the Wielkopolski National Park (mid-western Poland). The heavy metals involved (Cd, Cu, Cr, Pb, Ni and Zn) were determined in groundwater, the springs that feed Lake Góreckie and the lake itself. In order to show how the heavy metals may be set free and what is their biological availability, soil and sediment samples were subjected to single-stage extraction, using 0.01 M CaCl(2), 0.02 M EDTA, 0.005 M DTPA, 0.1 M HCl, 1 M HCl and de-ionised water. Varying metal concentrations were recorded in the water samples during the study period (from November 2009 to July 2010), usually with higher values in winter and lower ones in summer. The seasonal changes may be ascribed to natural processes taking place in the ground- and surface waters of Lake Góreckie. On the other hand, the concentration levels (mostly of Cd, Pb and Cr) are indicative of anthropogenic activity. It should be mentioned in this context that the highest metal concentrations were found in the soil layer. The concentrations were also found to exceed both the Polish and the World Health Organization water-quality standards. It appears that the soils are highly contaminated, mostly with cadmium. The long-lasting effect of acid precipitation in the area makes it possible for immobile forms to become mobile, thus facilitating further migration into the environment.

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Assessment of potentially reactive pools of aluminium in poor forest soils using two methods of fractionation analysis

Cited by 31 publications

References 42 publications

Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Composition and variability of soil solutions as a measure of human impact on protected woodland areas

Heavy metals: their pathway from the ground, groundwater and springs to Lake Góreckie (Poland)

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