Abstract

The change in the activity of catalase in the main soils of the Crimean Peninsula under the contamination with fuel oil was estimated. It has been established that with an increase in the degree of soil contamination with fuel oil, the activity of catalase decreases. A series of resistance of the main soils of the Crimea to fuel oil pollution was built according to the activity of catalase (soils are arranged as their resistance decreases): brown leached red-colored (73) > incompletely developed chernozems (65) = brown calcareous (65) > dark chestnut solonetzic ( 60) ≥ brown forest slightly unsaturated (55) ≥ chernozems of residual carbonate (51) = southern chernozems (51). The established sequence is determined by the degree of structure and biological activity of soils, which affect the oxidative conditions and the rate of destruction of fuel oil in the soil.

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