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Cation Exchange Capacity
Abstract
Cation exchange capacity (CEC), usually expressed in milliequivalents per 100 g of soil, is a measure of the quantity of readily exchangeable cations neutralizing negative charge in the soil. Ideally the method to use is one that measures the soil's capacity to adsorb cations from an aqueous solution of the same pH, ionic strength, dielectric constant, and composition as that encountered in the field, since CEC varies with these parameters. It is seldom practical to determine the CEC of each soil sample with reagents appropriate to its specific field solution conditions, since the latter information is not easily obtained and each CEC determination would require unique reagents. Either two or three steps are commonly used in the conventional methods of determining the CEC of soils, and potential errors exist in each step. The three steps are saturation of cation exchange sites with a specific cation, removal of excess saturating solution, and replacement of saturating cation.
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Cited by
Adsorption of chromium(III) on lignin
Wu, Y., Zhang, S., Guo, X., & Huang, H. (2008) · Bioresource Technology · doi:10.1016/j.biortech.2008.01.069 · Cited by 326
Barzegar, A. R., Yousefi, A., & Daryashenas, A. (2002) · Plant and Soil · doi:10.1023/a:1021561628045 · Cited by 276
Mitchell, P. J., Simpson, A. J., Soong, R., & Simpson, M. J. (2015) · Soil Biology and Biochemistry · doi:10.1016/j.soilbio.2014.11.017 · Cited by 261
Cation exchange capacity of biochar: An urgent method modification
Munera-Echeverri, J. L., Martinsen, V., Strand, L. T., Zivanovic, V., Cornelissen, G., & Mulder, J. (2018) · Science of The Total Environment · doi:10.1016/j.scitotenv.2018.06.017 · Cited by 251
Dong, X., Guan, T., Li, G., Lin, Q., & Zhao, X. (2016) · Journal of Soils and Sediments · doi:10.1007/s11368-015-1338-5 · Cited by 152
Metadata
- Authors
- Rhoades, J. D.
- Venue
- Agronomy Monographs
- Publisher
- Wiley
- Published
- 1982-02
- Pages
- 149-157
- ISSN
- 0065-4663 (ISSN-L)
- 2156-3276
- OpenAlex
- W2471934652
- Cited by
- 1,628
- References
- 0
- Type
- other
- Language
- en
- Open access
- closed
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- Rhoades, J. D. (1982). Cation Exchange Capacity. Agronomy Monographs. https://doi.org/10.2134/agronmonogr9.2.2ed.c8
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