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The exchangeable cations in alluvial soils formed from calcareous sinter in the Unislawski Basin

100%

Bartkowiak A., Dlugosz J.

Journal of Elementology

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2010

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tom 15

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nr 3

445-454

The samples were taken from 7 profiles of alluvial soils formed from varied gytias on calcareous sinter. The research concerned determination of composition of exchangeable cations and basic saturation. In the analysed soils, lithologic discontinuities in the profile structure were observed. The calcareous sinter located in the lower part of the profile caused characteristic water properties and occurrence of gleyic process. The investigated soil profiles were varied in their morphological structure and physicochemical properties. Fluctuations in the content of carbonates, organic mater and non-carbonate mineral substance confirmed the existence of several cycles in the formation of these soils. The basic saturation (S) of the analysed soils ranged between 287.4 and 2238.7 mmol(+) kg–1. The highest values were detected in gytia horizons (gyd), and the lowest ones - in gleyic horizons (G). The dominant cation in sorption complex of all horizons was calcium, and its highly differentiated content ranged from 245.3 to 2089.6 mmol(+) kg–1. Magnesium was the second most abundant cation in sorption complex. The content of Mg2+ ranged from 19.4 mmol(+) kg–1 in clay-lime gytia horizons to 143.5 mmol(+) kg–1 in lime gytia horizons. The lowest in the content among exchangeable cations in the analysed samples was potassium (0.6-12.9 mmol(+) kg–1). Our comparison of the divalent cation content (Ca2+, Mg2+) and monovalent cation content (Na+, K+) showed significant instability of the balance between these groups of cations, which was confirmed by a very wide range of the ratio (21.3-333.1) calculated between these two groups of cations. The amount of alkaline cations in the analysed soilsfollowed this order: Ca2+ > Mg 2+ > Na+ > K+ .

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Mobility of exchangeable cations in soils from long term field experiments in Skierniewice

67%

Kozanecka T., Brogowski Z., Kisiel M., Stepien W.

Polish Journal of Soil Science

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2009

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tom 42

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nr 1

1-14

Taking advantage of the long term field stationary experiments in Skierniewice started at 1922 based on fixed mono-fertilization, the mobility of the exchangeable cations Ca, Mg, K, Na was studied for the whole soil profile up at a depth of 100 cm. Mobility was studied using an electrodialysis method to remove and determine cations in the cathode solutions. Calcium proved to be most mobile element and sodium the least mobile and the mobility ranking of exchangeable cations in the soil under investigation is as: Ca > K > Mg > Na. The genetic horizons of the soils showed differentiated mobility for individual cations. Cations in the surface horizons (up to 50 cm) are more mobile than in the deeper horizons with trace amounts of humus.

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Studies on interactions between exchangeable cations and cadmium, copper [II], and lead [II] cations in mineral soils. Part II. Effect of potassium and ammonium cations

67%

Gaszczyk R., Paszko T.

Polish Journal of Soil Science

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2000

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tom 33

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nr 1

Ograniczanie wyników

2 Polish Journal of Soil Science

1 Journal of Elementology

1 Bartkowiak A.

1 Brogowski Z.

1 Dlugosz J.

1 Gaszczyk R.

1 Kisiel M.

1 Kozanecka T.

1 Paszko T.

1 Stepien W.

1 2010

1 2009

1 2000

The exchangeable cations in alluvial soils formed from calcareous sinter in the Unislawski Basin

Mobility of exchangeable cations in soils from long term field experiments in Skierniewice

Studies on interactions between exchangeable cations and cadmium, copper [II], and lead [II] cations in mineral soils. Part II. Effect of potassium and ammonium cations