|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Salinization as the Main Soil-Forming Prozess in Soils of Natural Oases in the Gobi Desertстатья Перевод
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: 12 января 2022 г.
- Авторы: Pankova E.I., Aidarov I.P., Golovanov D.L., Yamnova I.A.
- Журнал: Eurasian Soil Science
- Том: 48
- Номер: 10
- Год издания: 2015
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1055
- Последняя страница: 1067
- Оригинальные версии: Засоление как основной почвообразовательный процесс в почвах природных оазисов гобийских пустынь
- DOI: 10.1134/S1064229315100087
- Аннотация: Abstract—The saline soils of the natural EkhiinGol oasis located in southern deserts of the Mongolian TransAltai Gobi are characterized. Specific features and the genesis of hydromorphic solonchaks, darkcolored meadow, and takyrlike desert soils predominating in the territory of the oasis are considered. Within the EkhiinGol oasis, hydromorphic solonchaks occupy more than 50% of its area. They are formed in the zone of discharge of weakly mineralized groundwater confined to tectonic faults. The upper saline horizon of the solonchaks contains nearly 40–60% of easily soluble salts. Their composition is mainly chloride–sulfate, and their elevated alkalinity is often related to the presence of boron in the soils and groundwater. The mineralogical composition of salts in the solonchaks of the oasis was studied; the reasons for the formation of almost nonsaline darkcolored meadow and takyrlike desert soils along with solonchaks are considered. The water–salt budget was calculated, the distribution of salts along the soil profiles was studied, and reasons for their salinization are considered. The soils of the major part of the EkhiinGol oasis are shown to be subjected to progressing salinization whose intensity depends on the groundwater level and mineralization, as well as on the correlation between the annual evaporation and the amount of water coming to the soil surface with precipitation, groundwater, and water of flooding ice (naled). Keywords: natural oasis, solonchaks (Solonchaks), water–salt budget, naleds (icings), salt profile, composition of salts
- Добавил в систему: Голованов Дмитрий Леонидович