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Contemporary Problems of Ecology

2010 year, number 3

Effect of Pollution with Fluorides from Aluminum Production on the State of Humus in Different Types of Soil in the Baikal Region

S. Y. Zorina, L. V. Pomazkina, A. S. Lavrentyeva, T. V. Zasukhina
Keywords: pollution of arable soil with fluorides from aluminum production, humus state, transformation of carbon and nitrogen in humus substances
Pages: 479-485

Abstract

Effect of pollution with fluorides form aluminum production on the state of humus in different types of arable soil was studied in field experiments. They included the version modeling the high level of pollution by introducing NaF, the component that prevails in aerial industrial emissions. The negative effect of fluorides on the state of humus, connected with an increase in the mobility of humus substances, was exhibited in the gray forest soil stronger than in the sod meadow soil. This was dependent on the physicochemical properties of soil determining the buffer characteristics with respect to NaF, and the concentration of water-soluble fluorides.