Soils and the Soil Cover of Mountainous Tundra Landscapes on Calcareous Rocks in the Polar Urals: Diversity, Taxonomy, and Nitrogen and Carbon Patterns

Polyarenes Distribution in the Soil-Plant System of Reindeer Pastures in the Polar Urals

“…The climate of this region is humid continental characterised by sharp fluctuations in seasonal and daily temperatures. The amount of precipitation varies greatly depending on the height of mountain ranges and amounts to 600-800 mm per year [1]. Permafrost rocks are predominantly characterised by insular distribution.…”

“…The plant communities of selected sites differ significantly in composition, structure, and functional characteristics [1,24]. Groups are distinguished according to the aboveground biomass reserves of plant communities.…”

“…This fact explains the concentration of polyarenes in the upper organogenic horizons of most studied soils. Cryoturbation processes that occur at the top of a hill lead to the inversion of polyarene content, as well as the overall content of organic carbon and nitrogen in soils [1].…”

“…The aim of this work is to reveal the regularities of PAH composition formation in soils on carbonate rocks that are developing in the northern part of the Bolshoi Paipudynsky ridge. Previously, the distribution features of organic and inorganic forms of carbon and nitrogen in soils for these objects, including their soluble fractions, were shown [1,24].…”

“…An increase in temperatures and a change in snow accumulation trends that are especially pronounced in ecosystems of a cold humid climate, change the nature of humus formation. At the same time, the mountain soil cover of the Eurasian High Arctic has practically remained unstudied [1]. Due to better drainage and increased solar radiation, the soil organic matter of high-latitude mountain ecosystems can be more susceptible to transformation under the conditions of the increasing thermal pollution of the atmosphere compared to the soils of lowland landscapes.…”