Soils of the Nikita Botanical Garden and their geochemical properties
Abstract
Investigations of soils and soil cover of the Nikita Botanical Garden have shown that cinnamonic soils are widely spread in the southwestern part of the garden, where almost natural biocenoses occur. Humantransformed and human-made soils which occupy larger area in the garden (60%) differ in the composition of topsoil, signs of mixing, number of coarse rock fragments larger than 1 mm, depth of the underlying rock, and the abundance of artifacts. Garden soils are weakly alkaline and alkaline and differ considerably in humus content. The humus content varies within 5,5–8,5% in the humus horizons of cinnamonic soils, and within 3,6–14% in the upper horizons of human-transformed and human-made soils. The calcium carbonate content is from 0 to 6% in natural soils, while in the anthropogenic ones it is much higher (up to 36%).
Soils of the Nikita Botanical Garden are not contaminated with heavy metals as compared with the geochemical background. Increased concentrations of trace elements in the soils of the garden as compared with their average content in the earth’s crust result from the predominance of clay slates and their derivates among soil-forming rocks.
About the Author
V. I. Chupina
Lomonosov Moscow State University
Russian Federation
Russian Federation
graduate student
Faculty of Geography, Department of Landscape Geochemistry and Soil Geography
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For citations:
Chupina V.I. Soils of the Nikita Botanical Garden and their geochemical properties. Lomonosov Geography Journal. 2020;(1):35-41. (In Russ.)
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