Biogeochemical assessment of soils and plants in industrial, residential and recreational areas of Saint Petersburg

Pashkevich, M.A.; Bech, J.; Matveeva, V.A.; Alekseenko, A.V.

Авторы: Pashkevich M.A., Bech J., Matveeva V.A., Alekseenko A.V.
Журнал: Journal of Mining Institute
Том: 241
Год издания: 2020
Первая страница: 125
Последняя страница: 130
DOI: 10.31897/PMI.2020.1.125
Аннотация: Soils and plants of Saint Petersburg are under the constant technogenic stress caused by human activity in industrial, residential, and recreational landscapes of the city. To assess the transformed landscapes of various functional zones, we studied utility, housing, and park districts with a total area of over 7,000 hectares in the southern part of the city during the summer seasons of 2016-2018. Throughout the fieldwork period, 796 individual pairs of soil and plant samples were collected. A complex of consequent laboratory studies performed in an accredited laboratory allowed the characterization of key biogeochemical patterns of urban regolith specimens and herbage samples of various grasses. Chemi-cal analyses provided information on the concentrations of polluting metals in soils and plants of different land use zones. Data interpretation and calculation of element accumulation factors revealed areas with the most unfavorable environmental conditions. We believe that a high pollution level in southern city districts has led to a significant degree of physical, chemical, and biological degradation of the soil and vegetation cover. As of today, approximately 10 % of the Technosols in the study area have completely lost the ability to biological self-revitalization, which results in ecosystem malfunction and the urgent need for land remediation.
Добавил в систему: Алексеенко Алексей Владимирович

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