INFLUENCE OF CEREAL PLANTS ON MICROORGANISMS OF LEACHED CHERNOZEM POLLUTED BY HYDROCARBONS

摘要

The application of plants for remediation of soils contaminated with petroleum hydrocarbons is one of the promising cost and environment effective approach. Microbiocenosis of planted with maize and oat and unplanted leached chernozem artificially polluted with methylnaphthalene and tetradecane was studied. The positive rhizosphere effect of both plants on microbiocenosis of the only contaminated soil in comparison with uncontaminated planted soil was detected. The maize has provided a more stimulating influence on the microbial community of polluted leached chernozem in comparison with the oat. The quantity and quality changes in microbiocenosis of polluted chernozem under plants and in unplanted soil were similar. As to the oat, an increasing of tetradecan and 1-methylnaphthalene destructors in root zone soil were detected even in the absence of the pollution.