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THE BIOLOGICAL CYCLE OF ALUMINUM AND IRON IN THE BIOGEOCENOSES OF THE KHIBINY AND LOVOZERO TUNDRAS

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2022 Russian Publisher:�� .��.

doi: 10.23670/irj.2022.116.2.016

THE BIOLOGICAL CYCLE OF ALUMINUM AND IRON IN THE BIOGEOCENOSES OF THE KHIBINY AND LOVOZERO TUNDRAS

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Abstract

�� Al �� Fe �� . �� , 0,1�� NaOH-��, 1�� KCl-�� Al �� Fe �� -�� . �� (��) �� . �� Al �� -�� . �� Fe �� -�� -�� . �� Al �� Fe �� , �� . �� Al �� Fe �� . �� -�� Al �� Fe �� -�� . �� , �� .

The article analyzes the biogenic mass exchange of Al and Fe in the soils and vegetation of the Khibiny and Lovozero tundras; it also determines concentrations and ratios of water-soluble, 0.1N NaOH-soluble, 1h KCl-soluble and oxalate-soluble forms of Al and Fe in soils of the main vertical-zonal belts. The study establishes the coefficient of biological absorption (Kb) for plants of different altitude zones and notes an increase in Al content from mountain-taiga to tundra biogeocenoses in most plants, while for Fe, the author notes an increase in concentrations in plants from mountain-tundra to mountain-taiga landscapes. The content of Al and Fe in biomass, in annual growth and fall, grows from the mountain tundra to the valley spruce taiga. The annual biogenic growth of Al and Fe decreases from the taiga landscape to the lichen tundra. These facts indicate a significant role of landscape and geochemical components in the redistribution and biological cycle of Al and Fe in the landscapes of the Khibinsk-Lovozersk alkaline province. The research materials can be used to intensify agricultural activity in the region, as well as to assess its environmental situation and bioindication.

�� -�� , �� 2 (116) 2022, Pages 95-102

Keywords

biological absorption coefficient, ��, biomass, ��, mass transfer, ��, biogeocenosis, ��, �� , decay

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