Section

Ecology

Title

PHYTOINDICATION OF AUTOMORPHIC SOILS WITHIN THE MIDDLE TAIGA OF THE USTYANSKY PLATEAU (THE ARKHANGELSK REGION)

Сontributors

О.A. Nikitina, post-graduate student, Lomonosov Moscow State University, This email address is being protected from spambots. You need JavaScript enabled to view it.;

I.A. Gorbunova, Associate Professor, Lomonosov Moscow State University, This email address is being protected from spambots. You need JavaScript enabled to view it.;

N. B. Leonova, Leading researcher, Lomonosov Moscow State University, This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

The phytoindication of soil enables to detect the correlation between the main environmental components, i.e. vegetation, soils, parent material. Therefore, the phytoindicationof soil is important for the integrated geographic research.

The Ustyansky plateau is a representative area for the phytoindication of soil due to vegetation, parent material and soils uniqueness. The territory evolution in the Pleistocene and Holocene resulted in a combination of European and Siberian plant species. The anthropogenic pressure (de-forestation, plowing) determined the prevalence of different secondary forest types. The two-term sediments are a factor of the spread of different podzolic and podzol soils types and subtypes.

The connection between parent material, soil subtypes and vegetation was investigated and described. Thus, the study area represents the following indicators combinations: Abies sibiricaand boreal true moss communities on pale-yellow podzolic, podzolic with contact bleached horizon; Piceaabies, Betulapendula and Alnusincana forest stands with nemoral herb species on complex lithobarrier clay-illuviated podzols; Pinussylves- tris and cowberry lichen cover on iron podzol, iron and humus podzol.

Plant communities ordination through ecological indicator values by Ramenskiy allowed to identify the main directions of changes of automor- phic soil subtypes in rows of moisture increase and soil nutrientsrichness.

Keywords

phytoindication of soil, the Russian soil classification, two-term sediments, the Middle Taiga, podzolic soils, podzols, ecological indicator values, forest types.

References

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