Secondary Salinization of Reclaimed Solonetzes and Its Aftereffect
- Authors: Semendyaeva N.V.1,2, Dobrotvorskaya N.I.1, Elizarov N.V.1,3
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Affiliations:
- Siberian Federal Scientific Center of Agro-Biotechnologies, Russian Academy of Sciences
- Novosibirsk State Agrarian University
- Institute of Soil Science and Agrochemistry, Siberian Branch, Russian Academy of Sciences
- Issue: Vol 52, No 11 (2019)
- Pages: 1429-1438
- Section: Soil Reclamation
- URL: https://journals.rcsi.science/1064-2293/article/view/225290
- DOI: https://doi.org/10.1134/S1064229319110097
- ID: 225290
Cite item
Abstract
The studies were performed at the long-term stationary experiment on crusty hydromorphic solonetzes of the Baraba Plain during 1986–2017. In the humid year of 2013, the ground water level drastically rose from a depth of 250 cm to 50 cm, and secondary salinization was recorded. The content of soluble salts increased, their composition changed, the soil pH shifted to higher values, and the exchangeable sodium percentage increased. After lowering of the ground water table, salts were gradually washed out from the soil profile in the reclaimed solonetzes, and the positive effect of gypsum was partially restored. The soil adsorption complex was dominated by Mg2+ in the control variant and by Ca2+ in the reclaimed solonetzes. This phenomenon should be taken into consideration when reclaiming solonetzes, because the positive effect of gypsum application is preserved after secondary salinization.
About the authors
N. V. Semendyaeva
Siberian Federal Scientific Center of Agro-Biotechnologies, Russian Academy of Sciences; Novosibirsk State Agrarian University
Author for correspondence.
Email: semendyeva@ngs.ru
Russian Federation, Novosibirsk, 63050; Novosibirsk, 630039
N. I. Dobrotvorskaya
Siberian Federal Scientific Center of Agro-Biotechnologies, Russian Academy of Sciences
Email: semendyeva@ngs.ru
Russian Federation, Novosibirsk, 63050
N. V. Elizarov
Siberian Federal Scientific Center of Agro-Biotechnologies, Russian Academy of Sciences; Institute of Soil Science and Agrochemistry, Siberian Branch, Russian Academy of Sciences
Email: semendyeva@ngs.ru
Russian Federation, Novosibirsk, 63050; Novosibirsk, 630090