Vol. 9 pp. 294-309

A.H. Khabletdinova, E.V. Nafikova, G.G. Buskunova

BIOGEOCHEMICAL ACTIVITY OF MEDICINAL PLANTS UNDER TECHNOGENIC LOAD (CASE STUDY OF THE TUKAN QUARRY, REPUBLIC OF BASHKORTOSTAN)

Annotation. The paper presents the results of a study on the content of heavy metals (HMs) – Cu, Zn, Fe, Ni, Mn, Cd, Co, Pb – in the "soil–plant" system within the territory of the Tukan iron ore quarry (Beloretsky District, Republic of Bashkortostan). The objects of the study were six species of wild medicinal plants: yarrow (Achillea millefolium L.), flat-leaved eryngo (Eryngium planum L.), oregano (Origanum vulgare L.), St. John's wort (Hypericum perforatum L.), red clover (Trifolium pratense L.), and common toadflax (Linaria vulgaris L.). Using atomic absorption spectroscopy, it was found that the soils of the area are characterized by an admissible pollution category according to the total contamination index Zc (4.96) for gross forms of HMs, with the priority pollutants being Ni (exceeding the maximum permissible concentration, MPC) and Cd (exceeding background levels). In the organs of the studied plants, exceedances of the maximum allowable levels (MAL) were detected for Fe, Ni, and Co. Eryngium planum L. exhibited the highest capacity for HM accumulation, especially in the root system (acropetal distribution type), with an accumulation coefficient (AC) of up to 6.00. Calculation of the biological absorption coefficient (BAC) showed that most HMs belong to the medium-capture elements (0.1 < BAC < 1), while the accumulation index (Ia) calculation revealed vigorous accumulation of Cu and Fe by plants (Ia > 10). Species-specific differences in biogeochemical activity (BCA) were established. The highest BCA1 (based on BAC) was observed in Achillea millefolium L. (3.67), and the highest BCA2 (based on Ia) was observed in Trifolium pratense L. (700.76). The results indicate the potential suitability of the studied species, particularly Eryngium planum L., for phytostabilization purposes in contaminated areas, as well as the necessity of monitoring the quality of medicinal plant raw materials harvested under conditions of technogenic load.

Keywords: heavy metals, bioaccumulation, phytoremediation, biogeochemical activity, acropetal coefficient, Tukan quarry, medicinal plants, environmental monitoring.

For citation: Khabletdinova A.H., Nafikova E.V., Buskunova G.G. [Biogeochemical activity of medicinal plants under technogenic load (case study of the Tukan quarry, Republic of Bashkortostan)] Upravlenie tekhnosferoi, 2026, vol. 9, issue 2, рр. 294–309. DOI: 10.35634/UdSU.2026.41.39.003. (In Russ.).

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About the Authors

Alfiya Khabletdinova

Master's student, Ufa University of Science and Technology, Ufa. Russia.

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Nafikova Elvira Valerikovna

Candidate of Geographical Sciences, Associate Professor, Associate Professor, Ufa University of Science and Technology, Ufa. Russia.

Buskunova Gulsina Gilmanovna

Candidate of Biological Sciences, Associate Professor, Associate Professor of Sibai Institute (branch) of Ufa University of Science and Technology, Sibai, Russia.

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