Geology, geography and global energy

Scientific and Technical Journal

Heavy metals in soils of river basins of Tatarstan

2018. №2, pp. 118-129

Alexandrov A.B. - C.Sc. in Biology, Senior Researcher, Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, 28 Dayrskaya st., Kazan, Republic of Tatarstan, 420087, Russian Federation, adabl@mail.ru

Ivanov D.V. - C.Sc. in Biology, Deputy Director for Scientfic Work, Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, 28 Dayrskaya st., Kazan, Republic of Tatarstan, 420087, Russian Federation, water-rf@mail.ru

Valiev V.S. - Senior Researcher, Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, 28 Dayrskaya st., Kazan, Republic of Tatarstan, 420087, Russian Federation, podrost@mail.ru

Malanin V.V. - Researcher, Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, 28 Dayrskaya st., Kazan, Republic of Tatarstan, 420087, Russian Federation, wizzle13@mail.ru

Khasanov R.R. - Junior Researcher, Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, 28 Dayrskaya st., Kazan, Republic of Tatarstan, 420087, Russian Federation, rustamkhasanov88@gmail.ru

Marasov A.A. - Junior Researcher, Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, 28 Dayrskaya st., Kazan, Republic of Tatarstan, 420087, Russian Federation, owltrawolta@yandex.ru

The results of the study of physicochemical properties and the content of heavy metals (Cd, Pb, Co, Cu, Ni, Zn, Cr, Mn, Fe) in sod podzolic and gray forest soils of the Kazanka river (Republic of Tatarstan) basin are given in the article. It has been established that the reaction of the medium of sod-podzolic and gray forest soils of the basin varies from slightly acidic in natural conditions to neutral in arable analogues. The humus content is typical for the corresponding soil types and varies from 2,5 to 3,5 % in sod podzolic soils and from 2,0 to 9,7 % in gray forest soils. The accumulation of metals in the soils of the basin is closely dependent on their lithological basis. A positive correlation was found between the gross content of Pb, Co, Cu, Ni, Zn, Cr and the proportion of physical clay (< 0,01 mm). It is established that the average content of gross and mobile forms of metals (with the exception of Zn and Mn in sod-podzolic soils) does not exceed the regional standards for their background content in the soils of the Republic of Tatarstan. Series of biogeochemical activity of the studied metals in sod-podzolic and gray forest soils have been constructed. The obtained data supplement information on variations in the metal content in zonal soils of the basins of large rivers and their tributaries in the European territory of Russia.

Key words: бассейн р. Казанка, дерново-подзолистые почвы, серые лесные почвы, физико-химические свойства, тяжелые металлы, подвижность в почвах, региональные нормативы, basin of the Kazanka River, sod-podzolic soils, gray forest soils, physicochemical characteristic

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