NATURAL SCIENCES

Journal of fundamental
and
applied researches

Microbiological parameters of soil territories Astrakhan

2014. 1, pp. 033-041

Shadmanova Takhmina Kh. - post-graduate student, Astrakhan State University, 1 Shaumyan Sq., Astrakhan, 414000, Russian Federation, tahmina1988@mail.ru

Chuikov Yuri S. - D.Sc. (Biology),Professor, Astrakhan State University, 1 Shaumyan Sq., Astrakhan, 414000, Russian Federation, us.chuikov@mail.ru

Egorov Mikhail A. - D.Sc. (Biology),Professor, Astrakhan State University, 1 Shaumyan Sq., Astrakhan, 414000, Russian Federation, us.chuikov@mail.ru

Bataeva Yuliya V. - Ph.D. (Biology),Associate Professor, Astrakhan State University, 1 Shaumyan Sq., Astrakhan, 414000, Russian Federation, aveatab@mail.ru

The study examines the microbiological methods for the study of selected areas of Astrakhan , dedicated to the comprehensive study of the problems of environmental conditions in the city , with the help of the varying methods. The object of investigation was chosen – black poplar (Populus nigra), as the most dominant view of urban ecosystems Astrakhan. In laboratory experiments studied the microbiological composition of the rhizosphere and root zone black poplar (Populus nigra). Sampling was carried out in urban, industrial, recreational and vehicle areas. Microbiological analysis of the study area showed that the greatest value of the total microbial count in the soil (≈ 2,0·106 CFU/g of soil) and root zone (≈ 1,0·107 CFU/g of roots ), found at the site trucking zone is characterizes the saturated soil organic matter. It was also found, that in the rhizosphere of the root zones and the amount and variety of microorganisms is more than in the surface layer of the soil. Nitrogen fixing bacteria were found in all samples of the rhizosphere and root zones, which favorably affects biogeocoenosis soil.

Key words: microorganisms, microbiological indicators of soil, rhizosphere, root zone (rizoplana), environmental monitoring, Astrakhan