|Issue № 1||
|PhD, Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences (IB FRC Komi SC UB RAS), email@example.com|
|PhD, Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences (IB FRC Komi SC UB RAS), firstname.lastname@example.org|
|Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences (IB FRC Komi SC UB RAS), email@example.com|
|Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences (IB FRC Komi SC UB RAS), firstname.lastname@example.org|
|Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences (IB FRC Komi SC UB RAS), email@example.com|
Summary: In order to predict the barrier functions of the components of natural ecosystems in the migration of radionuclides,we studied the forms of U, 226Ra and 210Pb in fresh willow and aspen leaf litter collected in the taiga territory polluted by radium mining. In the course of the experiment, these radionuclides were sequentially extracted from fallen foliage with distilled water (water-soluble forms), 1M ammonium acetate (exchange forms), and 0.1M sulfuric acid solution (acid-soluble forms). Studied radionuclides differed in the degree of extraction from leaf biomass. After all the stages of extraction, 64–84 % of 226Ra and 85–88 % of 210Pb of their initial gross content were preserved in the litter. Among the mobile forms of radionuclides, exchange form (12–20 %) was the most characteristic for radium, and acid–soluble one (8–9 %) for lead. The amount of uranium extracted from leaf litter was higher in comparison with this. After all the extraction stages, the proportion of non-extractable uranium was 6–14 % and 20–23 % in the cases of willow and aspen, respectively. The results of the experiment indicate that in case of radioactive contamination of the taiga zone, the leaf litter of the studied representatives of the willow family is a good temporary depository of 226Ra and 210Pb. At the same time, uranium is expected to return quickly from the willow and aspen leaf litter to the abiotic components of the environment. Taking into account the degree of accumulation of the studied radionuclides in the green mass of woody plants, their widespread prevalence in the taiga, as well as the possibility of wind scattering of leaf litter, the obtained results complement the data necessary to predict the migration and concentration of natural uranium-series radionuclides in polluted taiga ecosystems.
© Petrozavodsk State University
Received on: 24 August 2021
Published on: 15 April 2022
Adamova L. I. Taskaev A. I. Quantification of 210Po and 210Pb in soil and vegetation samples, Migraciya i biologicheskoe deystvie estestvennyh radionuklidov v usloviyah severnyh biogeocenozov. Syktyvkar, 1980. P. 64–71.
Alekseeva A. A., Fazullin D. D., Kharlyamov D. A., Mavrin G. V., Stepanova S. V., Shaikhiev I. G., Shaimardanova A. S. The use of leaves of different tree species as a sorption ma-terial for extraction of heavy metal ions from aqueous media, International journal of Pharmacy and Technology. 2016. Vol. 8, No. 2. P. 14375–14391.
Beznosikov V. A. Lodygin E. D. Shuktomova I. I. Artificial and natural radionuclides in soils of the Southern and Middle Taiga subzones of the Komi Republic, Pochvovedenie. 2017. No. 7. P. 824–829. DOI: 10.7868/S0032180X17050033
Boev V. A. Baranovskaya N. V. Boev V. V. Mercury in leaf litter of subtaiga forests on the natural territory, Izvestiya Tomskogo politehnicheskogo universiteta. Inzhiniring georesursov. 2018. T. 329, No. 8. P. 124–131.
Bolsunovsky A., Zotina T., Bondareva L. Accumulation and release of Am by a macrophyte of the Yenisei River (Elodea canadensis), Journal of the Environmental Radioactivity. 2005. Vol. 81. P. 33–46. DOI: 10.1016/j.jenvrad.2004.10.012
Bondareva L. G. Subbotin M. A. Interaction of Tritium with Elodea canadensis and Lemna minor, Radiacionnaya biologiya. Radioekologiya. 2016. T. 56, No. 4. P. 440–446. DOI: 10.7868/S0869803116040032
Brovarova O. V. Kocheva L. S. Karmanov A. P. Shuktomova I. I. Rachkova N. G. Investigation of physicochemical properties of sorbents based on vegetable raw material, Izvestiya vysshih uchebnyh zavedeniy «Lesnoy zhurnal». 2004. No. 4. P. 112–121.
Dobrolyubskaya T. S. Luminescent method., Analiticheskaya himiya urana. M.: Nauka, 1962. P. 143–165.
Ermakov V. V. Petrunina N. S. Tyutikov S. F. Danilova V. N. Hushvahtova S. D. Degtyarev A. P. Krechetova E. V. Concentration of metals by plants of the genus Salix and their importance for identification of Cd anomalies, Geohimiya. 2015. No. 11. P. 978–990. DOI: 10.7868/S0016752515110023
Evseeva T. I. Belyh E. S. Maystrenko T. A. Geras'kin S. A. Taskaev A. I. Vahrusheva O. M. Regularities of lateral distribution of uranium and thorium decay series radionuclides in the anthropogenically changed soils from the area of radium production waste storage, Radiacionnaya biologiya. Radioekologiya. 2012. T. 52, No. 1. P. 103–112.
Lang S. I., Cornelissen J. H. C., Klahn T., van Logtestijn R. S. P., Broekman R., Schweikert W., Aerts R. An experimental comparison of chemical traits and litter decomposition rates in a diverse range of subarctic bryophyte, lichen and vascular plant species, Journal of Ecology. 2009. Vol. 97. P. 886–900. DOI: 10.1111/j.1365-2745.2009.01538.x
Noskova L. M. Shuktomova I. I. Comparative evaluation of 238U and 226Ra absorption by herbaceous and woody species under man-made pollution, Radiacionnaya biologiya. Radioekologiya. 2010. T. 50, No. 6. P. 642–648.
Onianwa P. C., Ajayi S. O., Osibanjo O., Egunyomi A. Sorption and retention of Pb, Cu and Cd ions in three species of mosses used for air pollution studies in Nigeria, Environmental Pollution (Series B). 1986. Vol. 11. P. 231–238.
Persson B. R. R., Holm E. Polonium-210 and lead-210 in the terrestrial environment: a historical review, Journal of Environment Radioactivity. 2011. Vol. 102. P. 420–429. DOI: 10.1016/j.jenvrad.2011.01.005
Pristova T. A. Habibullina F. M. Vinogradova Yu. A. The role of micromycetes in forest litter formation in deciduous stands of the Middle Taiga, Lesovedenie. 2012. No. 4. P. 47–55.
Puchkova E. V. Eremin V. V. Bogdanova O. G. Gimel'brant D. E. Ctepanchikova I. S. Distribution of 210Pо in lichen thalli, Radiohimiya. 2017. T. 59, No. 2. P. 189–192.
Rachkova N. G. Shaposhnikova L. M. Speciation of radium-226 in the components of terrestrial and aqueous Northern Taiga ecosystems in a former radium production site, Geohimiya. 2020. T. 65, No. 6. P. 599–608. DOI: 10.31857/S0016752520050106
Rachkova N. G. Shuktomova I. I. Changes in the mobility of uranium, radium, and thorium in the plow layer of podzolic soil, Pochvovedenie. 2009. No. 2. P. 211–217.
Rodin L. E. Bazilevich N. I. Dynamics of organic matter and biological circulation of ash elements and nitrogen in the main types of vegetation of the globe. M.; L.: Nauka, 1965. 256 p.
Scheid S., Günthardt-Goerg M. S., Schulin R., Nowack B. Accumulation and solubility of metals during leaf litter decomposition in non-polluted and polluted soil, European Journal of Soil Science. 2009. Vol. 60. P. 613–621. DOI: 10.1111/j.1365-2389.2009.01153.x
Shaposhnikova L. M. Main factors affecting accumulation of uranium, radium and thorium by plants, Vestnik IB Komi NC UrO RAN. 2017. No. 3. P. 49–57.
Soudek P., Petrová S., Benešová D., Tykva R., Vankova R., Vanek T. Comparison of 226Ra nuclide from soil by three woody species Betula pendula, Sambucus nigra and Alnus glutinosa during the vegetation period, Journal of Environmental Radioactivity. 2007. Vol. 97. P. 76–82. DOI: 10.1016/j.jenvrad.2007.03.008
Starik I. E. Fundamentals of Radiochemistry. L.: Nauka, 1969. 247 p.
State report "On the state of the environment of the Komi Republic in 2016", Ministerstvo promyshlennosti, prirodnyh resursov, energetiki i transporta Respubliki Komi; GBU RK «TFI RK». Syktyvkar, 2017. 179 p.
Taskaev A. I., Landa E. R., Guryev D. V., Golovko-Butler N., Kraemer T. F. Vodnyi: a long-term, low-level radiation exposure field site in Russia, Japanese Journal of Health Physics. 2003. Vol. 38. P. 332–343. DOI: 10.5453/jhps.38.332
Titaeva N. A. Taskaev A. I. Migration of heavy natural radionuclides in a humid zone, Otv. red. V. I. Pavlockaya. L.: Nauka, 1983. 232 p.
Xie Ya., Cao Ya., Xie Yo. Global-scale latitudinal patterns of twelve mineral elements in leaf litter, Catena. 2022. Vol. 208. P. 105743. DOI: 10.1016/j.catena.2021.105743
Yue K., Yang W., Tan B., Peng Ya., Huang C., Hu Z., Ni X., Yang Yu., Zhou W., Zhang L., Wu F. Immobilization of heavy metals during aquatic and terrestrial litter decomposition in an alpine forest, Chemosphere. 2019. Vol. 216. P. 419–427. DOI: 10.1016/j.chemosphere.2018.10.169