Morphogenetic Features of Soils under Mountainous Larch Forests and Woodlands in the Subpolar Urals

Жангуров, Е. В.; Startsev, V. V.; Dubrovskiy, Ya. A.; Degteva, S. V.; Dumov, A. A.

doi:10.1134/s1064229319120147

Cited by 10 publications

(6 citation statements)

References 17 publications

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“…In the lower horizon at a depth of 25-35 cm, the content of large carbonaceous particles increases significantly (from 3-5 mm to 10-12 mm). According to a number of authors [21,24,27], this indicates a local type of fire. The presence of a powerful buried layer of coals (with dimensions up to 5-6 mm or more) in karst craters (located lower down the slope from plots 6 and 5) at a depth of 35-50 cm demonstrates the profile of buried soil with a distinct differentiation into genetic horizons that are formed as a result of erosion-decomposition processes after fires.…”

Section: Discussionmentioning

confidence: 99%

“…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.…”

Section: Site Description and Soil Samplingmentioning

confidence: 99%

“…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].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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Humic substances of soils consist of various organic compounds, including polycyclic aromatic hydrocarbons (PAHs). Soil as a fairly stable medium allows the correct use of polyarenes as markers of the humus formation process. Monitoring of the accumulation of PAHs as resistant organic toxicants is also necessary due to their carcinogenic and mutagenic properties. Natural plant resources serve as the feed base of northern reindeer husbandry. In this study, high-performance liquid chromatography in a gradient mode and gas chromatography-mass spectrometry methods were used to estimate the content of PAHs in mountain tundra and meadows of the Polar Urals (Russia). The accumulation of polyarenes in soils on carbonate rocks of the Bolshoi Paipudynsky ridge occurs mainly in the process of soil formation and largely depends on factors such as productivity of plant communities, the composition of standing biomass, the site’s position in relief, the granulometric composition of soils, cryogenesis process and pyrogenesis. According to the set of polyarenes, their number, and ratio, the studied objects were classified into separate groups by discriminant analysis. The most typical representatives of pedogenic origin are naphthalene and phenanthrene. The accumulation features of dibenz[a,h]anthracene and benz[b]-, benz[k]fluoranthene, benz[ghi]perylene, and benz[a]perylene are shown. In mountain tundra landscapes, the characteristics of PAHs can be used to diagnose the intensity and direction of soil formation processes in general and humification in particular.

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Section: Discussionmentioning

confidence: 99%

Section: Site Description and Soil Samplingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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“…The pressure of marginal parts of glaciers resulted in the mixing of various sediments with limestone-containing parent materials and moraines. Limestone rock expositions are typical for mountainous landforms, in connection with rendzinas forming at their outcrops; in particular, in the Subpolar Urals [26] and Samarskaya Luka [27], they can also be observed on the banks of rivers that cut into limestones (for example, the Msta River in the Novgorod region) [28].…”

Section: The Role Of Parent Materials In Soil Genesismentioning

confidence: 99%

Rendzinas of the Russian Northwest: Diversity, Genesis, and Ecosystem Functions: A Review

Abakumov

2023

Geosciences

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Rendzinas in the taiga zone are intrazonal soils; moreover, all of their processes occur in ways that are different from podzolic soil formation, which is typical for the zonal taiga boreal ecosystem. At the same time, the habitats of carbonate soils are known as places in which there is a concentration of biodiversity in the more southern regions, as they are drier, are insolated, and have a higher trophic state than zonal podzols. The biotopes on carbonate soils are becoming more southern and are dominated by nemoralis species of flora, including abundant calciphilous plant species. Carbonate soils regulate biogeochemical processes within their distribution and in the geochemically subordinate landscapes of Northwest Russia. They are associated with the existence of a number of specially protected natural areas, as well as the implementation of a number of important ecosystem services. Carbonate soils of the southern taiga are endangered and require special protection. The belt of the carbonate soils in the northwestern Russian and Baltic regions extends to Poland and is the basis for the formation of a special landscape–ecological framework with specific biodiverse, biogeochemical, and geographical characteristics. The intensive extraction of limestone from quarries leads to the destruction of rendzinas, which makes them increasingly rare and extremely vulnerable. The rate of recovery of rendzina soils after technogenic impacts is much slower than the regeneration of zonal podzols; therefore, they are an almost non-renewable resource. Thus, rendzinas are an important component of the Northwest Russian soil cover, where all factors of soil formation “refract” and acquire specificity, leading to radical changes not only in the soil-forming potential of the environment but in all of the components of terrestrial ecosystems. In other words, the island of alkaline rocks inherited from the ancient seas is currently pedogeochemically actualized in the soil cover of vast taiga areas.

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“…Currently, one of the main goals of scientific research in the Pechora-Ilych State Nature Reserve is that of the biodiversity assessment of natural ecosystems at different levels of their organisation. Hence a high level of study of forest associations and ground cover types (Lavrenko et al, 1995;Bobkova et al, 2010;Smirnov, 2013;Kanev et al, 2014;Seregin, 2014;Aleinikov et al, 2016;Shevchenko & Smirnova, 2017) and soils (Semikolennykh et al, 2013;Degteva & Lapteva, 2013;Zhangurov et al, 2019) is obtained there. Despite the high scientific interest, there are still a few data on chemical composition of the ground cover plants as well as on the variation of the latter in various forest associations and its influence on soil chemical composition.…”

Section: Introductionmentioning

confidence: 99%

Comparison of structure and chemical composition of ground cover and soils of fir-spruce forests in Pechora-Ilych State Nature Reserve, Northern Urals

Kudrevatykh¹,

Geraskina²

2021

Nat. Conserv. Res.

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Bilberry-feathermoss (BFM) fir-spruce forests on podzols and boreal tall herb (BTH) fir-spruce forests on brown soils were studied in the Pechora-Ilych State Nature Reserve, Northern Urals. In each type of forest, 50 × 50-cm 2 monoliths were taken at the root zone depth (n = 54 and n = 45 for BTH and BFM, respectively). Living plants of herbs, dwarf shrubs, and mosses were taken from the monoliths for the subsequent determination of species and affiliation of the latter to functional groups. Profile pits with mixed sample selection from each soil horizon were also made in three replications on the same sites. Concentrations of Mg, Al, P, S, K, Ca, Mn, Fe, and Zn were measured in plant and soil samples using the X-ray fluorescence analysis. It was found that herbs form the bulk of the ground cover of the studied BTH fir-spruce forest. The boreal species proportion in the flora of these communities, if compared to that in the BFM flora, is 28% lower. On the contrary, the nemoral and nitrophilous species proportions are 20% and 14% higher, respectively. Mg, Zn, Mn, and Al are accumulated in the shoots and roots of plants of both forest types, whereas the content of Ca, K, S, and P is higher only in the roots. The chemical composition of plants is dependent on both their functional group and forest type they inhabit. The highest levels of Cа, K, P, and Mg were found in boreal low herbs as well as in tall herbs in both forest types. The content of Al, Fe, Zn, Mn, and S was the highest in the BTH tall herbs. Boreal low herbs possess higher levels of K,

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Morphogenetic Features of Soils under Mountainous Larch Forests and Woodlands in the Subpolar Urals

Cited by 10 publications

References 17 publications

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

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

Rendzinas of the Russian Northwest: Diversity, Genesis, and Ecosystem Functions: A Review

Comparison of structure and chemical composition of ground cover and soils of fir-spruce forests in Pechora-Ilych State Nature Reserve, Northern Urals

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