Dependence of soil biological activity on ecotopes contamination with heavy metals
| Autor: | S. Korsun, N. Dovbash, V. Оliferchuk |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Agroecological journal. :56-61 |
| ISSN: | 2077-4915 2077-4893 |
| Popis: | Research was carried out on the basis of long experience in the small plot of gray forest loam soil to be extended in a systematic pollution agroecotopes by lead, cadmium, zinc. The set of changes in the properties of microbial coen of gray forest loam soil in condition of contamination ecotops with pollutants was ascertained. With the growth concentration of lead, cadmium, zinc in gray forest loam soil there was a decrease in the activity of cellulose-digesting microorganisms, inhibition of soil respiration rate, and a trend for increasing of nitrifying microorganisms. Violation of the natural concentrations of heavy metals in the gray forest soil was accompanied by changes in the species composition of micromycetes. The excess of toxicants natural background caused an additional increase in the number of pathogenic species of the genus Fuzarium, Zygomycetes family, in particular, species Rizopus and the appearance of «melanization soil» effect. |
| Databáze: | OpenAIRE |
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