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 partПоказать полностьюicularly 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