Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1134/S1064229317100106

Ключевые слова: groundwater level, Salic Gleyic Solonetz, secondary salinization

Аннотация: Solonetzes of experimental trials established in 1981 and 1986 in the Baraba Lowland were examined. It was found that gypsum-based ameliorants improve the soil and lead to a decrease in the content of soluble salts in the soil profile. Exchange processes between cations of the soil adsorption complex and calcium of gypsum were particularly intensive in the first years after gypsum application. This resulted in a sharp rise in the content of soluble salts that migrated down the soil profile to the groundwater. In the following years, the reclaimed solonetzes were desalinized under the conditions of relatively stable groundwater level. On the 30th year after single gypsum application, the groundwater level sharply rose (to 50 cm), and the soil was subjected to the secondary salinization; the contents of bicarbonates, carbonates, and sodium in the soils increased. Spring leaching caused some desalinization, but the content of soluble salts in the upper soil meter increased again in the fall. A close correlation between the salt compositions of the groundwater and the reclaimed solonetzes was revealed. © 2017, Pleiades Publishing, Ltd.

Журнал: Eurasian Soil Science

Выпуск журнала: Vol. 50, Is. 10

Номера страниц: 1177-1185

ISSN журнала: 10642293

Издатель: Maik Nauka-Interperiodica Publishing

• Semendyaeva N.V. (Novosibirsk State Agrarian University, Novosibirsk, Russian Federation, Siberian Research Institute of Farming and Chemization of Agriculture, Siberian Federal Scientific Center of Agrobiotechnologies, Russian Academy of Sciences, Novosibirsk, Russian Federation)
• Elizarov N.V. (Institute of Soil Science and Agrochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation)

• Scopus