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Reaction of Aquatic Plants of Small Rivers of the Turkestan Region of Kazakhstan to Heavy Metal Ions
Автор(ы)
Akmaral U. Issayeva
K. Kidirbayeva
Talgat Ibragimov
Assel Ye Tleukeyeva
Дата публикации
21 апреля 2022 г.
Тип
journal article
Издатель
Polish Society of Ecological Engineering
Том
23
Выпуск
6
Первая страница
43
Последняя страница
49
ISSN
2081-139X
Аннотация
Heavy metals are some of the environmental pollutants that have a serious impact on the environment.The analysis of hydromacrophytes growing in small rivers of the south of Kazakhstan with different contents of heavy metal salts revealed that the morphometric indicators of the same plant species differ significantly, depending on the level of total mineralization of the aquatic environment in different rivers of the Turkestan region.It has been established that two plant species can be used to bioindicate the content of lead ions in the aquatic environment: Azolla caroliniana Willd.and Veronica beccabunga L., which must be introduced into the tested aqueous solutions in the amount of 1.0 kg/m 3 and 1.5-2.0kg/m 3 , respectively, to fully cover the water column at different depths.The first morphological changes in plants, in the form of destruction of the structure of chloroplasts along the edges of unfolded leaves in A. caroliniana Willd.and slight withering of the lower underwater leaves in V. beccabunga L., occur already at a 1.5 mg/l Pb 2+ content in water, and a further increase in the content of lead ions in water to 600.0-800.0mg/l leads to the death of plants.
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