Name
Gordeeva Tatiana Kharitonovna
Scholastic degree
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Academic rank
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Honorary rank
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Organization, job position
Volga State University of Technology
Web site url
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Articles count: 4
In this article, an anthropogenic influence on natural
ecosystem such as an excavation of sand is discussed.
Investigations were done in Kuyar Forest District of
the Mari El Republic on a sandpit. The adjacent plot
of natural forest was taken as a control. For evaluation
the degree of environment transformation as a result of
sand excavation several indicators were used. As
indicators of physical soil degradation - thickness of
organogenic horizon and soil density; for assessment a
chemical degradation – content of main nutrients and
humus; as an indicator of biological degradation – the
level of active microbial biomass. Besides, a potential
phytotoxicity was estimated. The study proved:
physical and chemical parameters corresponded with
the fourth degree of soil degradation, at the same time,
biological parameters approximated to parameters of
soil from natural territory
The effect of the new meliorants on the qualitative and quantitative composition of the microflora of loamy sand soil and the growth of pine seedlings is presented. The activization of microbiological processes and growth of plants on the meliorated plots is revealed
The microbiological composition of the rhizosphere of the soft wheat (Triticum aestivum L.), the two-row barley (Hordeum distichon L.) and the sowing oats (Avena sativa) was studied. It is shown, that the total number of the rhizosphere microorganisms changes during the plant growth and development. The specificity of the microbial composition of the three studied cereal crops has been observed