Comparative assessment of the methods for exchangeable acidity measuring
- Authors: Vanchikova E.V.1, Shamrikova E.V.1, Bespyatykh N.V.2, Zaboeva G.A.1, Bobrova Y.I.1, Kyz”yurova E.V.1, Grishchenko N.V.2
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Affiliations:
- Institute of Biology, Komi Science Center, Ural Division
- Pitirim Sorokin Syktyvkar State Universitym
- Issue: Vol 49, No 5 (2016)
- Pages: 512-518
- Section: Soil Chemistry
- URL: https://journals.rcsi.science/1064-2293/article/view/223798
- DOI: https://doi.org/10.1134/S1064229316050136
- ID: 223798
Cite item
Abstract
A comparative assessment of the results of measuring the exchangeable acidity and its components by different methods was performed for the main mineral genetic horizons of texturally-differentiated gleyed and nongleyed soddy-podzolic and gley-podzolic soils of the Komi Republic. It was shown that the contents of all the components of exchangeable soil acidity determined by the Russian method (with potassium chloride solution as extractant, с(KCl) = 1 mol/dm3) were significantly higher than those obtained by the international method (with barium chloride solution as extractant, с(ВаCl2) = 0.1 mol/dm3). The error of the estimate of the concentration of Н+ ions extracted with barium chloride solution equaled 100%, and this allowed only qualitative description of this component of the soil acidity. In the case of the extraction with potassium chloride, the error of measurements was 50%. It was also shown that the use of potentiometric titration suggested by the Russian method overestimates the results of soil acidity measurement caused by the exchangeable metal ions (Al(III), Fe(III), and Mn(II)) in comparison with the atomic emission method.
About the authors
E. V. Vanchikova
Institute of Biology, Komi Science Center, Ural Division
Email: shamrik@ib.komisc.ru
Russian Federation, Kommunisticheskaya ul. 28, Syktyvkar, 167610
E. V. Shamrikova
Institute of Biology, Komi Science Center, Ural Division
Author for correspondence.
Email: shamrik@ib.komisc.ru
Russian Federation, Kommunisticheskaya ul. 28, Syktyvkar, 167610
N. V. Bespyatykh
Pitirim Sorokin Syktyvkar State Universitym
Email: shamrik@ib.komisc.ru
Russian Federation, Oktyabr’skii prosp. 55, Syktyvkar, 167001
G. A. Zaboeva
Institute of Biology, Komi Science Center, Ural Division
Email: shamrik@ib.komisc.ru
Russian Federation, Kommunisticheskaya ul. 28, Syktyvkar, 167610
Yu. I. Bobrova
Institute of Biology, Komi Science Center, Ural Division
Email: shamrik@ib.komisc.ru
Russian Federation, Kommunisticheskaya ul. 28, Syktyvkar, 167610
E. V. Kyz”yurova
Institute of Biology, Komi Science Center, Ural Division
Email: shamrik@ib.komisc.ru
Russian Federation, Kommunisticheskaya ul. 28, Syktyvkar, 167610
N. V. Grishchenko
Pitirim Sorokin Syktyvkar State Universitym
Email: shamrik@ib.komisc.ru
Russian Federation, Oktyabr’skii prosp. 55, Syktyvkar, 167001