2020,    № 3 (41)    

ECOLOGY




Tsepina N.I., Kolesnikov S.I., Minnikova T.V., Sudina L.V., Ter-Misakyants T.A., Nevedomaya E.N., Kazeev K.Sh.

Effect of silver on the activity of dehydrogenases in different soil types

In this study, the effect of silver nitrate 1, 10, and 100 mg / kg on the activity of dehydrogenases of three types of soils in the South of Russia was evaluated. In the course of the study, it was found that silver had a negative effect on the activity of dehydrogenases in sierosands, brown forest soil and ordinary chernozem. At a silver concentration of 1 and 10 mg / kg, inhibition of the dehydrogenase activity of sierosands was noted by 16 and 39%, and in brown forest soil by 21 and 42%, relative to the control values. A silver concentration of 100 mg / kg inhibited the activity of dehydrogenases in sierosands, brown forest soil, and ordinary chernozem by 40, 58, and 56% of control, respectively. According to the degree of resistance to contamination with silver nitrate according to the activity of dehydrogenases, the studied soils form the following series: ordinary chernozem (83)> sierosands (76) ≥ brown forest soil (70)

Keywords:SILVER NITRATE, ENZYMATIC ACTIVITY, POLLUTION, CHERNOZEM ORDINARY, SIEROSANDS, BROWN FOREST SOIL