Reaction of Aquatic Plants of Small Rivers of the Turkestan Region of Kazakhstan to Heavy Metal Ions
Issayeva A. Myrzabayeva Z. Kidirbayeva K. Ibragimov T. Baitasheva G. Tleukeyeva A.
2022Polskie Towarzystwo Inzynierii Ekologicznej (PTIE)
Journal of Ecological Engineering
2022#23Issue 643 - 49 pp.
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/m3 and 1.5–2.0 kg/m3, 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 Pb2+ content in water, and a further increase in the content of lead ions in water to 600.0–800.0 mg/l leads to the death of plants.
Accumulation , Bioindication , Heavy metals , Hydromacrophytes , Lead content , Morphological changes
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Shymkent University, Zhybek Zholy St 131, Shymkent, 160031, Kazakhstan
Kazakh State Woman Pedagogical University, Almaty, 050000, Kazakhstan
M. Auezov South Kazakhstan University, Tauke Khan Avenue 5, Shymkent, Kazakhstan
Shymkent University
Kazakh State Woman Pedagogical University
M. Auezov South Kazakhstan University
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