Pakhorukov I., Chetina O., Eremchenko O.

RJEE Vol. 7 (2). 2022 | DOI: 10.21685/2500-0578-2022-2-3
Abstract | PDF (Rus) | Additional files

Receipt date 17.03.2022 | Publication date 26.06.2022

 

ACCUMULATION OF TECHNOGENIC SALTS IN ALLUVIAL SOIL AND PLANTS IN THE CONDITIONS OF THE SOUTH TAIGA SUBZONE

 

I. V. Pakhorukov1, O. A. Chetina2, O. Z. Eremchenko3
1, 2, 3 Perm State National Research University, 15 Bukireva street, Perm, 614990, Russia
1
Ivan-psu@yandex.ru, 2 chetoks@gmail.com, 3 eremch@psu.ru

 

Abstract. Background. In the production of potash fertilizers, a large amount of waste is generated; during storage, the salts contained in them are dissolved by precipitation and take part in the formation of ground runoff. In the valleys of small rivers, highly mineralized groundwater contributes to soil salinization and the formation of a special plant community. The aim of the article is to establish the salinization features of alluvial soil and the intensity of accumulation of Cl, Na+, K+ and Ca2+ cations by plants in the conditions of the southern taiga. Materials and methods. In soil samples, the following methods were used to determine: hydrolytic acidity, composition of exchange bases, ionic-salt composition of aqueous extract, mobile Na+ and K+. The content of Cl, Na+, K+ and Ca2+ was found in the leaves of plants. The results were processed using variance and regression analysis. The area of technogenic salinization was established using the QGIS 3.16 program. Results. In the valley of the small Bygel River, under the influence of technogenic mineralized waters, alluvial gray-humus highly saline soils were formed. Regression dependences have been established between the degree of technogenic soil salinization and the ion content in the leaves of Chenopodium glaucum L., Atriplex patula L. and Juncus bufonius L. Conclusions. In alluvial soil, sodium and potassium chlorides predominated in the composition of water–soluble salts, and K+ ions predominated in the composition of exchange cations. With the intensification of technogenic salinization in the leaves of Chenopodium glaucum, Atriplex patula and Juncus bufonius, the content of saline ions increased, and calcium selectively accumulated. The level of K+ content in these plants corresponded to the accumulation of Na+ ions. Puccinellia distans (Jacq.) Parl. was characterized by the lowest content of K+, Na+ and Cl in the leaves.

 

Keywords: technogenic salinization, alluvial soil, facultative halophytes, selectivity of absorption

 

For citation: Pakhorukov I.V., Chetina O.A., Eremchenko O.Z. Accumulation of technogenic salts in alluvial soil and plants in the conditions of the south taiga subzone. Russian Journal of Ecosystem Ecology. 2022;7(2). (In Russ.). Available from: https://doi.org/10.21685/2500-0578-2022-2-3