Assessing the biological activity of oil-contaminated soddy-podzolic soils with different textures |
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Authors: | A. A. Vershinin A. M. Petrov D. V. Akaikin Yu. A. Ignat’ev |
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Affiliation: | 1. Institute of Environmental Problems and Subsoil Use, Academy of Sciences of the Republic of Tatarstan, ul. Daurskaya 28, Kazan, Tatarstan Republic, 420087, Russia
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Abstract: | The respiratory activity features in oil-contaminated soddy-podzolic soils of different textures have been studied. Unidirectional processes occur in contaminated loamy and loamy sandy soddy-podzolic soils; their intensities depend on the soil parameters. The mineralization rates of the oil products and the activity of the microflora in loamy soils exceed the corresponding parameters for loamy sandy soils. The long-term impact of oil and its transformation products results in more important disturbances of the microbial community in light soils. It has been shown that light soils containing 9% oil require longer time periods or more intensive remediation measures for the restoration of soil microbial cenoses disturbed by the pollutant. |
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