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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Geochemical Transformations in Liquid and Solid Phases of Sod–Podzols in Technogenically Disturbed Landscapes of the Moscow Brown Coal Basinстатья
Дата последнего поиска статьи во внешних источниках: 8 апреля 2022 г.
- Авторы: Kostin A.S., Krechetov P.P., Chernitsova O.V., Terskaya E.V.
- Журнал: Moscow University Soil Science Bulletin
- Том: 76
- Номер: 5
- Год издания: 2021
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 283
- Последняя страница: 290
- DOI: 10.3103/S0147687421050021
- Аннотация: This paper examines effects caused by erosion products and seepage waters spreading from sulfuriccoal dumps for more than 50 years on the chemical composition and properties of solid and liquid (soil solu-tions) phases of nearby sod–podzols in the south-taiga zone. The study was conducted at the Cherepetskoyebrown coal field, Tula oblast, Russia. The physicochemical properties of these posttechnogenic soils have noparallel in natural south-taiga landscapes of the Russian Plain. The main geochemical processes in techno-genically transformed sod–podzols are as follows: (1) acidification, including changes in the ionic composi-tion of soil solutions and their transformation from hydrocarbonate–sulfate–calcium to sulfate–aluminum–calcium ones; and (2) replacement of Ca2+ and Mg2+ ions with Al3+ and H+ ions in the soil adsorption com-plex (SAC). The transformed soils feature a very low (less than 20%) base saturation degree, and their solu-tions are oversaturated with Fe3+ and Al3+ hydroxides. Changes in the soil solution composition intensify thepodzol formation process causing ferruginization of the illuvial horizon due to the active Al–Fe–humus pro-cess; as a result, the studied soils gain features typical for middle- and north-taiga podzols.
- Добавил в систему: Кречетов Павел Петрович