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THE INFLUENCE OF AERIAL EMISSIONS OF CEMENT PRODUCTION ON THE CHEMICAL AND BIOLOGICAL PROPERTIES OF FROZEN FOREST SOILS IN CENTRAL YAKUTIA (EASTERN SIBERIA, RUSSIA)

Marina Shchelchkova, T. A. Petrova, Gennady Boeskorov

First published: 2017-11-20https://doi.org/10.5593/sgem2017h/43/s19.068View metrics

Abstract

The article presents new data on the impact of dust emissions in cement production of the Open Joint Stock Company "Yakutcement" (Yakutia, Russia) on chemical and microbiological properties and enzymatic activity of frozen forest soils in Central Yakutia. It is established that as the emission source approaches and the dust load increases, significant alkalinization of soils takes place (the pH increases in litter from 7.11 to 8.40, and in humus horizons from 7.05 to 7.75) as a result of the accumulation of free calcium carbonates of technogenic origin. As a result of dusting and dilution of soil material with cement dust in forest soils, the content of humus decreases from 17.07 to 7.95%. Under the influence of cement dust, the microbiological and biochemical activity of frozen forest soils changes. In the surface layer of the soils (litter) a statistically significant decrease in the number of bacteria (4-10 times) and microscopic fungi (3 times), a decrease in the activity of urease and an increase in the activity of polyphenoloxidase were observed. Changes in the number of soil microflora and activity of enzymes adequately reflect the negative chemical shifts in soils contaminated with aerotechnogenic emissions of cement production.

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Title
THE INFLUENCE OF AERIAL EMISSIONS OF CEMENT PRODUCTION ON THE CHEMICAL AND BIOLOGICAL PROPERTIES OF FROZEN FOREST SOILS IN CENTRAL YAKUTIA (EASTERN SIBERIA, RUSSIA)
Authors
Marina Shchelchkova, T. A. Petrova, Gennady Boeskorov
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Energy and Clean Technologies
Publisher
STEF92 Technology
Year
2017
Pages
537-544
SWS Citekey
Shchelchkova201719537544
ISSN
1314-2704
ISBN
978-619-7408-28-7
Language
en
Publication type
Conference Paper
Keywords
cement productiondust emissionsfrozen soilsthe number of microorganismsenzymatic activity.
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