DBPapers
DOI: 10.5593/sgem2017H/43/S19.068

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

M. V. Shchelchkova, T. A. Petrova, G. G. Boeskorov
Thursday 23 November 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgemviennagreen.org, SGEM2017 Vienna GREEN Conference Proceedings, ISBN 978-619-7408-28-7 / ISSN 1314-2704, 27 - 29 November, 2017, Vol. 17, Issue 43, 537-544 pp; DOI: 10.5593/sgem2017H/43/S19.068

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.

Keywords: cement production, dust emissions, frozen soils, the number of microorganisms, enzymatic activity.

PAPER DOI: 10.5593/sgem2017H/43/S19.068, THE INFLUENCE OF AERIAL EMISSIONS OF CEMENT PRODUCTION ON THE CHEMICAL AND BIOLOGICAL PROPERTIES OF FROZEN FOREST SOILS IN CENTRAL YAKUTIA (EASTERN SIBERIA, RUSSIA)

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