March 2017, № 3 (203)

Skvortsova T. A. SELECTIVE ACCUMULATION OF HEAVY METALS BY REPRESENTATIVES OF THE ROSACEAE FAMILY IN THE CONDITIONS OF THE CITY OF ORENBURG (ON THE EXAMPLE OF MALUS CERASIFERA SPACH. AND MALUS PRUNIFOLIA (WILLD))The main feature of ecosystems of the modern cities is that in them the ecological equilibrium between streams of substance and the energy spent by the population for own consumption and the number of the waste coming to the atmosphere and the soil as a result of activity of the industry, construction and transport is broken. Accumulation in city ecosystems of the heavy metals (HM) which partially accumulate wood and shrubby plants of park zones and street plantings became one of the investigations of this phenomenon. Plants in relation to TM have one important property — selective accumulation thanks to which trees and bushes of different families and types accumulate in the vegetative and generative bodies various heavy metals and in their different quantities. In this regard there is a need for the correct selection of wild and fruit species of the plants applied to gardening of urban areas taking into account structure of pollutants of the urban environment and natural feature of trees and bushes to accumulation of metals. It is experimentally shown that among metals pollutants of soils of the city of Orenburg often there are a copper, zinc and lead. On the example of planting of Malus cerasifera Spach. and Malus prunifolia (Willd.) various extent of accumulation of these TM by generative and vegetative bodies of plants is established. At the same time dependence between concentration of TM in the studied soil and vegetable samples is revealed. Fruits of the studied plants to a lesser extent heat copper, the maximum accumulation is noted at zinc. The obtained data reflect different intensity of accumulation of TM by various bodies of plants of the Rosaceae family. Fruit plantings of the Rosaceae family (in particular Malus cerasifera Spach. and Malus prunifolia (Willd.)) are capable to long-term vegetation in the conditions of considerable technogenic load of ecosystems of the city of Orenburg.Key words: selective accumulation, apple-tree, heavy metals, ecology.

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About this article

Author: Skvortsova T.A

Year: 2017

Editor-in-chief

Sergey Aleksandrovich
MIROSHNIKOV

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