Kulagina L. S., Kulagin A. A., Onuchin А. А. Differentiated Response of Populus L. Species to Changes in the Chemical Composition of Technogenic Pollution in the Ufa Industrial Center
1 Nizhnevartovsk State University
Lenina str., 56, Nizhnevartovsk, Khanty-Mansi Autonomous Okrug–Yugra, 628605 Russian Federation
2 V. N. Sukachev Inst. For., Rus. Acad. Sci., Sib. Br.
Fed. Res. Center Krasnoyarsk Sci. Center, Rus. Acad. Sci., Sib. Br.
Akademgorodok, 50/28, Krasnoyarsk, 660036 Russian Federation
E-mail: koolagina@yandex.ru, kulagin-aa@mail.ru, onuchin@ksc.krasn.ru
Abstract
UDC 630.182:581.1:502.3(470.57)
How to cite: Kulagina L. S.1, Kulagin A. A.1, Onuchin А. А.2 Differentiated response of Populus L. species to changes in the chemical composition of technogenic pollution in the Ufa industrial center // Sibirskij Lesnoj Zurnal (Sib. J. For. Sci.). 2026. N. 4. P. … (in English with Russian abstract).
DOI: 10.15372/SJFS20260406
EDN: …
© Kulagina L. S., Kulagin A. A., Onuchin А. А., 2026
A comparative assessment of the resistance of six Populus L. species: balsam poplar (P. balsamifera L.), white poplar (P. alba L.), black poplar (P. nigra L.), European aspen (P. tremula L.), Maximowicz's poplar (P. maximowiczii A. Henry), Bashkir pyramidal poplar, a complex hybrid based on P. nigra; abbreviated as P. × bashkirica) to complex technogenic stress in the Ufa Industrial Center (UIC) was conducted for the periods 2013–2015 and 2022–2024. The study is based on analysis of the Growth Suppression Index (GSI) of shoots of different ages in industrial, residential, and control zones. It was established that over the ten-year period, a significant change occurred in the qualitative composition of atmospheric pollution: the share of chloride ion in the Atmospheric Pollution Index (API) structure increased 2.5-fold (from 8–9 % to 20–25 %) with a simultaneous decrease in the contribution of benzo(a)pyrene from 18 % to 10 %. A species-specific response to the shift from «organo-nitrogen» to «mixed chloride» pollution type was revealed. P. tremula demonstrated the highest sensitivity to increased HCl concentration (ΔGSI = +8.0 pp, p < 0.05), whereas the hybrid P. × bashkirica showed improved performance (ΔGSI = –2.6 pp). Species affiliation explained 89.1 % of GSI variability (p < 0.001), while models considering only quantitative pollution indicators (API) and climatic parameters were statistically insignificant (R² = 0.045, p = 0.834). The results, compared with global phytoremediation experience and adaptive species strategies, substantiate the need to account for the dynamics of pollutant chemical composition when selecting assortments for greening industrial territories. For UIC conditions with high chloride pressure, the resistant species P. × bashkirica, P. alba, and P. maximowiczii are recommended.
Article
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