Influence of biochar on the microflora in reclaimed soils in the area of the Medet mine from the Asarel-Medet metallurgical plant in Bulgaria
DOI:
https://doi.org/10.61308/CMII1237Keywords:
main groups of soil microorganisms; biochar; reclaimed soilsAbstract
The influence of biochar on the microflora in reclaimed soils from the area of the Medet mine, part of Asarel-Medet metallurgical plant, under the conditions of a 6 month incubation experiment, was evaluated. Four levels of biochar addition were studied 1%, 5%, 10% and 20%. Biochar positively affected the ammonifying microorganisms and mineral nitrogen-utilizing bacteria. On at the sixth month there was a significant increase in the amount of microorganisms associated with the processes of mineralization and ammonification. Actinomycetes have a greater distribution on the 3rd month along a 6 month period, but they exceeded the amounts of the control variants. Biochar favors the development of microscopic fungi and during both stages of the study they show a significant increase. The high percentage of biochar in the variants T4 and T7 suppresses the abondance of cellulose-decomposing microorganisms.
References
Abdu, N., Abdullahi, A. & Abdulkadir, A. (2017). Heavy metals and soil microbes. Environmental Chemistry Letters, volume 15, pages 65–84.
Abdulrahman, D., Othman, R. & Saud, H. (2016). Effects of empty fruit bunch biochar and nitrogen-fixing bacteria on soil properties and growth of sweet corn. Malaysian Journal of Soil Science, Vol. 20, 177-194.
Atanassova, I., Benkova, M., Nenova, L., Harizanova, M., Ilinkin, V., Kirilov, I., Dimitrov, E. & Simeonova, Ts. (2023). Geogenic and pedogenic sources of metals in reclaimed technosols from the area of Asarel - Medet non-ferrous smelter in Bulgaria. Journal of Environmental Protection and Ecology 24, No 6, 1857–1866.
Atanassova, I., Harizanova, M., Benkova, M., Simeonova, Ts. & Nenova, L. (2022a). Organic molecular markers in soils ameliorated with biochar. C R Acad Bulg Sci 75:467–474. https:// doi. org/ 10. 7546/ CRABS. 2022. 03. 18.
Atanassova, I., Harizanova, M., Benkova, M. & Doerr, S. H. (2022b). Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol. J Hydrol Hydromech 70:1–9.
https:// doi. org/ 10. 2478/ johh- 2022- 0025.
Atanassova, I., Nenova, L., Simeonova, Ts., Benkova, M., & Ilinkin, V. (2024). Effect of biochar on heavy metal solubility and speciation in Technogenic soils around Aurubis copper smelter in Bulgaria. Biologia.
https://doi.org/10.1007/s11756-023-01590-5
Benkova, M., Nenova, L., Simeonova, Ts., Petrova, V., Mikova, A. & Atanassova, I. (2022). Impact of oak wood biochar and nitrogen fertilizer on soil properties and maize biomass growth. Forestry Ideas 28, рр.241–253.
Chu, D. (2017). Effects of heavy metals on soil microbial community. IOP Conference Series: Earth and Environmental Science, 3rd International Conference on Advances in Energy Resources and Environment Engineering, Harbin, China, Volume 113, DOI 10.1088/1755-1315/113/1/012009.
Grudeva, V., Naumova, S., Gocheva, B., Nedeva, T. & Antonova-Nikolova, S. (2006). Manual Microbiology. University Publishing House "St. Kl. Ohridski ", Sofia.
Inobeme, A. (2021). Effect of Heavy Metals on Activities of Soil Microorganism. In: Adetunji, C.O., Panpatte, D.G., Jhala, Y.K. (eds) Microbial Rejuvenation of Polluted Environment. Microorganisms for Sustainability, vol 27, pp 115–142. Springer, Singapore. https://doi.org/10.1007/978-981-15-7459-7_6
Katoh, M., Masaki, S., & Sato, T. (2012). Single-step extraction to determine soluble lead levels in soil. Int J GEOMATE 3, p. 375.
Li, Q., Wang, Y., Li, Y., Li, L., Tang, M., Hu, W … & Ai, S. (2022). Speciation of heavy metals in soils and their immobilization at micro-scale interfaces among diverse soil components. Sci Total Environ 825:153862.
https:// doi. org/ 10. 1016/j. scito tenv. 2022. 153862
Maliszewska, W., Dec, S., Wierzbicka, H. & Woźniakowska, A. (1985). The influence of various heavy metal compounds on the development and activity of soil micro-organisms. Environmental Pollution Series A, Ecological and Biological, Volume 37, Issue 3, Pages 195-215.
Perfanova, J., Petkova, G. & Atanassova, I. (2020). Influence of organic soil improvers on the microflora of Leached Smolnitsa and Alluvial-meadow soil. Proceedings of the scientific forum with international participation „Ecology and agrotechnologies – fundamental science and practical realization“, volume 1, 166 – 173 (Bg).
Perfanova, J., Atanassova, I., Harizanova, M. & Kirilov, I. (2024). Microbiological properties of disturbed terrains from mining activity with subsequent reclamation in the area of Asarel-Medet. Journal of Mountain Agriculture on the Balkans, 27, in press.
Petkova, G., Nedyalkova, K., Mikova, A. & Atanassova, I. (2018). Microbiological characteristics of biochar amended alluvial meadow soil. Bulgarian Journal of Agricultural Science, 24 (Suppl. 2), 81-84.
https://journal.agrojournal.org/page/en/archive.php?issue=87 (SJR 0.223)
Prakongkep, N., Gilkes, R., Wisawapipat, W., Leksungnoen, P., Kerdchana, C., Inboonchuay, T., Delbos, E., Strachan, L., Ariyasakul, P., Ketdan, C. & Hammecker, C. (2021). Effects of Biochar on Properties of Tropical Sandy Soils Under Organic Agriculture. Journal of Agricultural Science; Vol. 13, No. 1. Published by Canadian Center of Science and Education p. 1-17.
Qiu, M., Liu, L., Ling, Q., Cai, Y., Yu, S., Wang, S.… &Wang, X. (2022). Biochar for the removal of contaminants from soil and water: a review. Biochar 4, 19 р.
Stoykova, M., Atanassova, I., Benkova, M., Simeonova, Ts., Nenova, L., Harizanova, M. & Atsenova, M. (2024). Positive Effect of Biochar Application on Soil Properties: Solubility and Speciation of Heavy Metals in Non-Acidic Contaminated Soils near a Steel Metallurgical Plant in Southeastern Europe. Sustainability. 16(16), 6891. https://doi.org/10.3390/su16166891
Sun, D., Meng, J. & Chen, W. (2013). Effects of abiotic components induced by biochar on microbial communities. Acta Agriculturae Scandinavica, Section B — Soil & Plant Science. Volume 63, Issue 7, Pages 633-641.
Thies, B. & Rillig, M. (2009). Characteristics of Biochar: Biological Properties. Biochar for Environmental Management, Book, Pages 22.
Vázquez-Blanco, R., Arias-Estévez, M., Bååth, E. & Fernández-Calviño, D. (2020). Comparison of Cu salts and commercial Cu based fungicides on toxicity towards microorganisms in soil. Environmental Pollution, Volume 257, 113585.
Wilke, B., Mai, M., Gattinger, A., Schloter, M. & Gong, P. (2005). Effects of fresh and aged copper contaminations on soil microorganisms. Journal of plant nutrition and soil science, Volume 168, Issue 5, Pages 668-675.
Yunyan, M., Wanli, X., Guangmu, T., Meiying, G. & Quanhong, X. (2017). Effect of cotton stalk biochar application on soil microflora of continuous cotton cropping under use of antagonistic actinomycetes[J]. Chinese Journal of Eco-Agriculture, 25(3): 400-409. DOI: 10.13930/j.cnki.cjea.160583
Xu, W., Whitman, W., Gundale, M., Chien, C. & Chiu, C. (2020). Functional response of the soil microbial community to biochar applications. Global change biology bioenergy. https://doi.org/10.1111/gcbb.12773
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