Ecological–Geochemical Studies of Technogenic Soils in the Flood Plain Landscapes of the Seversky Donets, Lower Don Basin

Bauer, Tatiana; Linnik, Vitaly; Minkina, Tatiana; Mandzhieva, Saglara; Nevidomskaya, Dina

doi:10.1134/s001670291810004x

Cited by 14 publications

(7 citation statements)

References 22 publications

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“…A dose of 0.5% diatomite and tripoli improved the parameters of the root length only by 1.5, 1.4 times, and the stem height by 1.4 times. With an increase in the doses of sorbents introduced into the soil, their effectiveness increases (Bauer et al, 2018;Rajput et al, 2021a,b;Kumar et al, 2021). The amendments efficiency was visible at 2.5% diatomite and tripoli.…”

Section: Discussionmentioning

confidence: 99%

Role of sorbents in early growth of barley under copper and benzo(a)pyrene contaminated soils

Barakhov

Chernikova

Dudnikova

et al. 2023

EJSS

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In modern economic and industrial realities, agricultural lands are often located next to industrial areas, which leads to soil contamination and, as a result, agricultural products with pollutants. Pollution of soils and plants by several pollutants of various nature has acquired huge proportions. There is a threat of migration of dangerous ecotoxicants, including heavy metals and benz[a]pyrene, one of the main persistent compounds, a marker of PAH soil contamination, along trophic chains that may be dangerous to public health. This study examines the use of various types of mineral sorbents (Tripoli, Brown coal, Diatomite) and mineral sorbents (Biochar, Granular activated coal) to reduce the toxic effects of pollutants on the sources of anthropogenic emissions of heavy metals and polycyclic aromatic hydrocarbons adjacent to the sources. Using scanning electron microscopy, it was found that the sorbents have a high specific surface area. With the help of phytotesting in combined contaminated soils, the optimal dose of sorbent administration was determined at the level of 1% and 2% for various pollution variants. In addition, the analyzed sorbents are ordered by the effect of reducing the phytotoxicity of combined soil pollution. It was found that the introduction of sorbents into contaminated soil contributed to an increase in the morphometric parameters of the test culture - barley (Hordeum sativum distichum), which confirms the effectiveness of the sorption remediation of jointly contaminated soils with heavy metals and benz(a)pyrene.

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Section: Discussionmentioning

confidence: 99%

Role of sorbents in early growth of barley under copper and benzo(a)pyrene contaminated soils

Barakhov

Chernikova

Dudnikova

et al. 2023

EJSS

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“…According to the World Reference Base for Soil Resources (WRB), the soils are classified as Spolic Technosols. Over half of the minerals in Atamanskoe soils are sulfate minerals, and a sulfide geochemical barrier operates in the deep soil layers (Bauer et al, 2018). As a control, Fluvisol soil from a floodplain site near Lake Atamanskoe with background values of PAH and TM indicators was taken.…”

Section: Object Description and Sample Collectionmentioning

confidence: 99%

“…5 c gds -1 ., while the lowest value was observed in sample 28 during autumn 2022, with less th a hundred c gds -1 . Seasonal dynamics revealed both oscillations of SRB quantity in studied soils and predominance in Technosol samples.…”

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confidence: 99%

Microbiota of the sulfur cycle in an extremely contaminated Technosol undergoing pedogenesis: A culture-dependent and metagenomic approach

Demin,

Minkina,

Sushkova

et al. 2023

Preprint

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Understanding the microbial communities involved in the global sulfur cycle is crucial for comprehending key biogeochemical processes on Earth. Most studies, however, are biased towards the marine ecosystems, as terrestrial sulfur cycle rarely investigated. In this study, we employed culture-dependent techniques and metagenomics to investigate functional, taxonomic and culturable of sulfur-cycling bacteria in extremely contaminated soils. Our findings reveal that elevated concentrations of xenobiotic pollutants, bulk sulfur content, and fluctuating redox conditions have shaped a unique microbial community involved in sulfur transformation. This community comprises non-canonical taxa carrying out typical reactions (e.g., sulfate-reducing acidobacteria), known taxa engaged in various oxidative, reductive, and organosulfur transformations (e.g., sulfur oxidizing alpha-, gamma-, and betaproteobacteria), as well as previously unidentified taxa that remain uncultured and may possess novel genes related to sulfur compound metabolism. Additionally, multiple taxa contribute to the replenishment of readily consumable compounds like sulfite and thiosulfate, facilitating cryptic biogeochemical cycling of molecules with high turnover rates but low absolute abundance. Our analysis also supports the idea that known sulfate-reducing bacteria behave differently in soils compared to aquatic habitats and belong to the soil rare biosphere, still greatly affecting their ecosystem.

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“…The entire Don basin has been greatly transformed as a result of long-term intensive anthropogenic load (Bartsev et al, 2016). Highly productive arable land in southern Russia, industrial and mining clusters, concentrated mainly in the watershed of the Seversky Donets tributary, and intensive development of the Rostov-on-Don agglomeration are the main factors that negatively affect the lower part of the Don basin (Nikanorov and Khoruzhaya, 2012;Matishov et al, 2016;Bauer et al, 2018;Konstantinova et al, 2020;Linnik et al, 2020;Minkina et al, 2020;Sushkova et al, 2020). The highest degree of anthropogenic load is characteristic of the Don Delta and the coastal zone of the Taganrog Bay due to urbanization, river and sea transport, as well as recreational activities, which leads to a decrease in water quality, soil and sediment pollution, degradation of coastal and deltaic landscapes and vegetation (Chichaeva et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Exchangeable form of potentially toxic elements in floodplain soils along the river-marine systems of Southern Russia

Konstantinova¹,

Minkina²,

Nevidomskaya³

et al. 2021

Eurasian Journal of Soil Science (Ejss)

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Large rivers and especially their deltaic parts and adjacent coastal zones are subjected to strong anthropogenic influence and are often considered as hotspots of environmental pollution. The Don River is one of the largest and most important rivers in the South of Russia. The Don River basin is a highly urbanized area with developed agriculture and industry which negatively affect water quality, aquatic ecosystems and soils. The main objectives of the proposed research were to determine the levels exchangeable form of PHEs in soils of various aquatic landscapes of the study area, as well as to reveal the relationships between the content of exchangeable PTEs and the physical-chemical properties of floodplain soils. The obtained results showed that soils of the Lower Don and Taganrog Bay coastal zone are rather contrast in terms of properties and metal contents, which indicates the variability of landscapes, natural and anthropogenic processes in the studied systems. High CV values for a number of metals such as Pb, Zn, Cd and Cr indirectly indicate strong anthropogenic influence on these environments. The group median values for extractable forms for most of the metals except for Cu and Ni were higher for urbanized areas. The results of PCA analysis showed that there are two association of metals in terms of geochemical behavior and sources. The first one included Cr-Zn-Pb-Cd, the elements of anthropogenic origin, the second Mn, Ni, and Cu, which are probably of mixed origin. The obtained results showed that the Lower Don and Taganrog Bay coastal zone is a diverse and complex system subjected to anthropogenic activities, which is pronounced in the enrichment of aquatic soils with a number of metals and higher proportions of exchangeable forms from different types of sources that likely can be of both local and whole basin scale. KKeywords: Floodplain, heavy metals, Fluvisols, the Don River, Taganrog Bay, Azov Sea.

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Ecological–Geochemical Studies of Technogenic Soils in the Flood Plain Landscapes of the Seversky Donets, Lower Don Basin

Cited by 14 publications

References 22 publications

Role of sorbents in early growth of barley under copper and benzo(a)pyrene contaminated soils

Role of sorbents in early growth of barley under copper and benzo(a)pyrene contaminated soils

Microbiota of the sulfur cycle in an extremely contaminated Technosol undergoing pedogenesis: A culture-dependent and metagenomic approach

Exchangeable form of potentially toxic elements in floodplain soils along the river-marine systems of Southern Russia

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