ORIGINAL RESEARCH
Trace and Toxic Elements in the Soils of Different Ecosystems of Plateau Areas of the South Urals
 
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1
Federal State Budgetary Educational Establishment of Higher Education “Bashkir State Agrarian University”, 34 50-letiya Oktyabrya Str., 450001 Ufa, Russia
 
2
Federal State Budgetary Institution of Science, Ufa Institute of Biology, Ufa, 69 Prospekt Oktyabrya, 450054 Ufa, Russia
 
 
Submission date: 2020-07-21
 
 
Final revision date: 2020-10-07
 
 
Acceptance date: 2020-11-01
 
 
Online publication date: 2021-02-22
 
 
Publication date: 2021-04-16
 
 
Corresponding author
Ilgiz G. Asylbaev   

Federal State Budgetary Educational Establishment of Higher Education “Bashkir State Agrarian University”, Russia
 
 
Pol. J. Environ. Stud. 2021;30(3):2477-2487
 
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ABSTRACT
The content and distribution of toxic elements in the rocks and soils of the Belebey plateau highlands, Ufa plateau and Zilair plateau were studied. The content of elements is determined by both natural and man-made factors. Natural accumulation is mainly related to the chemical composition of parent rocks. The parent rocks in Ufa plateau and Belebeyev plateau highlands are sedimentary with a big quantity of carbonates, and for the soils of the Zilair plateau – volcanic rocks. Man-made accumulation is characterized by a regression-accumulative type of distribution, which is manifested in an increased content in the humus-accumulative horizons and a sharp decrease in the lower ones. The accumulation of elements is associated with the extraction and processing of minerals, industrial emissions from enterprises, local wind and water transport of dust particles and aerosols from ash and slag dumps, and underground waste storage facilities. The amount of toxic elements in soils can also be determined by their belonging to various ecosystems (forest, arable land, meadow). The total chemical indicator in the research areas varies from strong to weak, and environmental conditions worsen in the areas: Belebey plateau highlands – Ufa plateau – Zilair plateau.
eISSN:2083-5906
ISSN:1230-1485
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