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- Title
Characteristics of the Accumulation of Metals by Plants and the Activity of Soil Enzymes in Metallogenic Territories of the Northern Caucasus.
- Authors
Ermakov, V. V.; Tyutikov, S. F.; Degtyaryov, A. P.; Gulyaeva, U. A.; Danilova, V. N.
- Abstract
Biogeochemical studies were carried out in two territories of the Northern Caucasus, including the Unal depression (which is enriched in Zn, Pb, Cu, and Cd) in the basin of the Ardon River in the Republic of North Ossetia–Alania and a profile down the Baksan River (which is characterized by elevated W and Mo concentrations) in the Kabardino–Balkarian Republic. The accumulation of metals was studied in both individual plants and ecogroups and in a lateral profile and a profile across altitudinal belts in the basin of the Ardon River. Selective Zn enrichment was found in the leaves of the birch Betula platyphylla Sukacz., whereas Cd and Zn were detected to be accumulated in the leaves of various willow and aspen types. Correlations were evaluated between the activity of soil enzymes (dehydrogenases, invertase, peroxidase, and catalase) and the concentration levels metals in soils at base-metal and W–Mo of biogeochemical provinces. It was determined that an increase in the totals of the concentrations of all metals in the soils of both areas is inhibited the activity of dehydrogenase. According to the degree of their inhibition by metals, the soil enzymes define the following sequence: dehydrogenases > invertase > (catalase and peroxidase). A change in the activity of soil enzymes at anthropogenic pollution can serve as an additional biogeochemical indicator for exploration operations and in ecological studies.
- Subjects
CAUCASUS; NORTH Ossetia (Russia); SOIL enzymology; PLANT-soil relationships; METALS; INHIBITION (Chemistry); ANTHROPOGENIC soils
- Publication
Geochemistry International, 2022, Vol 60, Issue 8, p772
- ISSN
0016-7029
- Publication type
Article
- DOI
10.1134/S0016702922070023