Zinc Sorption in Sandy Soils from Central Vietnam as a Function of Soil Characteristics
(2012) Communications in Soil Science and Plant Analysis — Vol. 43, n° 6, p. 887-895 (2012)
Files
No attached file found for this publication.
Details
- Authors
- Abstract
- Zinc (Zn) sorption curves were established for 11 cultivated sandy soils from central Vietnam. Soil samples (10 g) were equilibrated with 5 mM calcium chloride (CaCl <inf>2</inf>) solutions (50 mL) at five zinc chloride (ZnCl <inf>2</inf>) concentrations (0 to 80 mg Zn L <sup>-1</sup>). The experimental sorption data were fitted with the Freundlich equation. The amounts of Zn sorbed by soil (Q <inf>Zn</inf>) at different Zn concentrations in the equilibrium solution (C <inf>Zn</inf>) were closely related to cation exchange capacity (CEC) and pH, that is, to the available exchange sites at given pH values. More specifically, an excellent correlation was found between Zn sorption and exchangeable calcium (Ca <inf>ex</inf>), which evidently also depends on CEC and pH. A unique equation was proposed to predict Q <inf>Zn</inf> from C <inf>Zn</inf> and Ca <inf>ex</inf> in the range of Zn loading covered in our research, that is, from traces to Q <inf>Zn</inf> ≈ 60 mg Zn kg <sup>-1</sup>. © 2012 Copyright Taylor and Francis Group, LLC.
- Affiliations
Citations
Verriest, G., Couder, E., Thai, H. H. T., Bythell, S., Iserentant, A., Givron, C., & Dufey, J. (2012). Zinc Sorption in Sandy Soils from Central Vietnam as a Function of Soil Characteristics. Communications in Soil Science and Plant Analysis, 43(6), 887-895. https://doi.org/10.1080/00103624.2012.653024 (Original work published 2012)