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Aluminum Solubility Control in Different Horizons of a Podzol (1999)

Zysset, M. ; Blaser, P. ; Luster, J. ; [et al.]

Springer

Soil Science Society of America journal 63 (1999), S. 1106-1115

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ISSN: 1435-0661

Source: Springer Online Journal Archives 1860-2000

Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Notes: 3 and imogolite, (HO)3Al2O3SiOH, reached a constant value after reaction times of 16 d. For pH 〉4.1, the compilation of all data revealed pAl + 0.5 pSi = 3.05 pH − 7.04 (r 2 = 0.99) and pAl = 2.87 pH − 8.07 (r 2 = 0.99). These data could be shown to be consistent with either Al solubility control by imogolite-type material (ITM) with a log *K0 s = 6.53 ± 0.09, which dissolves incongruently, or a simultaneous equilibrium with ITM and hydroxy-Al interlayers of clay minerals. For pH 〈4.1, data indicated solubility control by a 1:1 aluminosilicate, e.g., poorly crystalline kaolinite.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/

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