|
ИСТИНА |
Войти в систему Регистрация |
ФНКЦ РР |
||
Monitoring of micromorphological changes in a virgin Solonetz under regional changes in hydrology and climate (Northern Caspian Lowland, Russia)статья Исследовательская статья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 сентября 2018 г.
- Авторы: Lebedeva M., Konyushkova M., Khokhlov S.
- Журнал: Spanish Journal of Soil Science
- Том: 8
- Номер: 2
- Год издания: 2018
- Первая страница: 164
- Последняя страница: 182
- DOI: 10.3232/SJSS.2018.V8.N2.03
- Аннотация: Over the past 40 years, a clear trend towards an increasing humidity of the climate and rising groundwater table has been observed in the south-eastern semidesert part of European Russia. According to the published data, two clear periods of climate are distinguished: 1950s-1970s and 1970s-2000s. The thin sections of a Solonetz sampled in different periods of time (1950s, 1960s, 1970s, 1982, 2002 and 2013) at the Dzhanybek research station were studied micromorphologically to observe how these natural changes influenced soil pedofeatures. A comparison of thin sections showed no significant changes in soil properties between 1950s and 1982, when the hydrological (ground water table) and climatic parameters remained relatively stable. However, between 1982 and 2013, due to significant rise in the climatic moistening and the groundwater depth, the following changes in soil microfeatures took place: the activation of humus accumulation and biogenic structuring, the eluviation of the silty clay-humus matter, the development of solodic features, gleyization of the soil mass, and the accumulation of opaque black organic grains about 2-3 µm formed in the topsoil due to the long stagnation during the springtime after snow melting. The rise of ground water table leads to the consequent rise of the upper boundary of the accumulation of gypsum and carbonates.
- Добавил в систему: Конюшкова М.В.