Trace Elements in Medicine (Moscow)
2019, 20(1): 52-58
THE CONTENT OF NICKEL IN AGROCENOSIS OF KRASNOYARSK REGION
A.E. Pobilat1, E.I. Voloshin2
1 Krasnoyarsk State Medical University, 660022, Krasnoyarsk, Partisan Zheleznyak St., 1, Russia
2 Krasnoyarsk State Agrarian University, 6660049, Krasnoyarsk, Mira Ave., 90, Russia
ABSTRACT. The gross content of nickel in soils of farm land of Krasnoyarsk Region fluctuates from 5.0 to 64.8 mg/kg. The content of nickel in the soils of subtaiga, forest-steppe and steppe zones is caused by unequal conditions of their soil formation, distinctions in particle size distribution and concentration of the element in bedrock. The maximum content of nickel in soils 13 times surpasses the minimum concentration. The highest content of nickel is noted in the soils of Nazarovsky and Kansk forest-steppe zones. Due to facilitated particle size distribution the lowered concentration of nickel characterizes the soils of Minusinsk forest-steppe. Average content of nickel is equal in chernozyoms – 27.4 mg/kg, intrazonal – 26.2, gray forest – 25.7 and sod-podsolic – 25.6 mg/kg. The background content of nickel on the area of 2.54 million hectares is equal in soils to 25.6 mg/kg or 0.6 Clark. The soils of Krasnoyarsk Region become poor in nickel in comparison with Clark and analogs from other regions of the country. In the surveyed territory the pollution of soils with nickel is not found. The content of nickel in crops is defined by the level of fertility of soils, weather conditions and biological features of plants. The concentration of nickel in crops fluctuates from 0.13 to 2.38 mg/kg average value is 0.60 mg/kg. From grain crops higher average content of nickel (2.29 mg/kg) is observed in oats. Its concentration in grain is 4.2–6.4 times higher, than in spring wheat, barley, winter rye and exceeds MDI. The raised content of nickel is present in cabbage heads, green material of corn, hay of perennial bean grass and natural fodder grounds in which the concentration of the element does not exceed the accepted sanitary standards. The content of nickel in the hair of inhabitants of Krasnoyarsk Region fluctuates from 0.17 to 0.24 mg/kg and is safe against other subjects of Sibe-rian Federal District.
KEYWORDS: soil, fertility, nickel, contents, Clark, weather conditions, crops.Corresponding author: A.E. Pobilat E-mail: firstname.lastname@example.org