Possible method of aluminium speciation in forest soils

Drábek, Ondřej; Borůvka, Luboš; Mládková, Lenka; Kočárek, Martin

doi:10.1016/s0162-0134(03)00259-9

Cited by 86 publications

(62 citation statements)

References 26 publications

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“…The following soil characteristics were determined (for details see Mládková et al 2004): pH H 2 O and pH KCl , humus quality by the ratio of absorbances of sodium pyrophosphate soil extract at the wavelengths of 400 and 600 nm (A 400 /A 600 , Pospíšil 1981), total contents of Ca, Mg, C, N and S (Ca tot , Mg tot , C tot , N tot , S tot ). Exchangeable Al forms were extracted with 0.5M KCl solution (Al KCl ), an assessment of "weakly organically bound" and "total organically bound" Al forms was based on Al amounts extracted with 0.3M CuCl 2 (Al CuCl 2 ) and 0.05M Na 4 P 2 O 7 (Al Na 4 P 2 O 7 ) solutions, respectively (Drábek et al 2003). Ratio C/N (w/w) was calculated as another indicator of soil humus quality.…”

Section: Methodsmentioning

confidence: 99%

Factors of spatial distribution of forest floor properties in the Jizerské Mountains

Borůvka¹,

Mládková²,

Drábek³

et al. 2005

Plant Soil Environ.

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The aim of this contribution was to describe spatial distribution of soil characteristics of forest floor in the Jizerské Mountains region and to assess the effect of stand factors by means of geostatistics, using structural correlation coefficients. Most soil properties showed a low spatial dependence with variogram range of 6000 m. Kriged maps of spatial distribution of soil properties were created. Most characteristics were influenced by altitude. A general decrease of pH and Ca and Mg content and an increase of potentially toxic Al forms (Al KCl ) due to high S and N loading were demonstrated. An effect of liming on the decrease of Al KCl content, and higher pH and Mg content and lower Al KCl under beech forest were shown. Lower acidity and a be�er humus quality were found at higher altitudes under grass cover (Calamagrostis villosa) in spite of high S and N content. The ratios S/Ca and S/(Ca + Mg) can serve as an indicator of soil acidification level.

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Section: Methodsmentioning

confidence: 99%

Factors of spatial distribution of forest floor properties in the Jizerské Mountains

Borůvka¹,

Mládková²,

Drábek³

et al. 2005

Plant Soil Environ.

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“…Detection of created Al-tiron complexes was done at 310 nm. This IC method (Drábek et al 2003) (Al 3+ and transformed hydroxyl Al polymers). The PHREEQC-2 speciation-solubility code Version 2.15 for MS Windows and the Visual MINTEQ Version 2.61 were used to determine the chemical speciation of Al in the experimental solutions (Parkhurst & Appelo 1999).…”

Section: Doi: 1017221/256/2014-swrmentioning

confidence: 99%

“…Nevertheless, the use of the Al speciation method proposed by Drábek et al (2003) is still useful for environment studies and routine soil analysis as it was proved by our previous works performed on acidified Spodsols and Cambisols originating from Czech mountains -the Jizerské, Krkonoše, and Novodhradské hory Mts. (Drábek et al 2005(Drábek et al , 2007Dlouhá et al 2009;Tejnecký et al 2010).…”

Section: General Remarkmentioning

confidence: 99%

Study of interactions between relevant organic acids and aluminium in model solutions using HPLC and IC

Drábek¹,

Kiplagat²,

Komárek³

et al. 2015

Soil Water Res.

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Drábek O., Kipkoech Kiplagat I., Komárek M., Tejnecký V., Borůvka L. (2015): Study of interactions between relevant organic acids and aluminium in model solutions using HPLC and IC. Soil & Water Res., 10: 172-180.The interactions of different organic acids such as citric, malic, oxalic, and fulvic with aluminium were studied using ion-exchange chromatography (IC) and high performance liquid chromatography (HPLC). The experiments were carried out at low pH (1.5-3.1). The results of IC experiments on the interaction between Al and oxalate, citrate, and malate were compared with model chemical equilibrium calculations. The strongest effect on Al speciation was observed with oxalic acid and fulvic acid. These two ligands formed more than one type of complex with Al. In contrast, there was no significant effect of malic acid on Al speciation and a rather weak effect caused by citric acid. The studies show that the formed complexes are stable even at low pH.

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“…By performing some simple calculations, these forms could be assessed in quantitative terms. The extractants employed included: potassium chloride (for the exchangeable form) [24], a CuCl 2 solution (weakly organically bound Al) [43][44][45], sodium pyrophosphate (total organically bound Al) [46,47], NH 4 -oxalate (amorphous inorganic Al), and a dithionite-citrate buffer (DCB) ('free' Al compounds) [41,48].…”

Section: Field Studymentioning

confidence: 99%

“…In these cases a substantial deposition of H + with precipitation will initiate buffering processes consisting of the dissolution of aluminium contained in a variety of forms in the solid phase [45,52].…”

Section: Soilmentioning

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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Possible method of aluminium speciation in forest soils

Cited by 86 publications

References 26 publications

Factors of spatial distribution of forest floor properties in the Jizerské Mountains

Factors of spatial distribution of forest floor properties in the Jizerské Mountains

Study of interactions between relevant organic acids and aluminium in model solutions using HPLC and IC

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

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