Modeling the effect of chemical pollution on biological properties of hydromorphic solonchaks in the dry steppe zone of southern Russia

Колесников, С. И.; Spivakova, N. A.; Vezdeneeva, L. S.; Kuznetsova, Yu. S.; Казеев, К. Ш.

doi:10.1134/s207909611102003x

Cited by 5 publications

(3 citation statements)

References 2 publications

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“…At the same time, these soils are widely extended in the coastal landscapes and perform important ecological functions. They are involved in the maintenance of biodiversity and the sustainable functioning of natural ecosystems 1,2 . Furthermore, taking into account the significant increase of traffic flow to Crimea via Taman and the development of associated infrastructure, studying the effects of chemical contamination of littoral soils of the Azov Sea, largely consisting of disguised solonchaks, becomes quite relevant.…”

Section: Introductionmentioning

confidence: 99%

Biodiagnostics of the Azov Seasolonchaks Condition Atchemical Contamination

Колесников¹,

Vernigorova²,

Казеев³

et al. 2016

Orient. J. Chem

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In studies on chemical contamination of soils, little attention is paid to disguised solonchaks. This is due to the low significance of disguised solonchaks for agriculture and the lack of significant pockets of chemical contamination in the areas of their extension. At the same time, these soils are widely extended in the coastal landscapes and perform important ecological functions. They are involved in the maintenance of biodiversity and the sustainable functioning of natural ecosystems. As shown by the current study, the contamination by Cr, Ni, Cu, Pb and oil leads to a deterioration of the biological properties of the hydromorphic estuary carbonate solonchak. This means decrease in the total number of bacteria, the activity of catalase and dehydrogenase, cellulolytic ability, abundance of the Azotobacter genus bacteria, as well as worsening indicators of radish seeds germination and initial growth. In terms of toxicity to the biological properties of the investigated marsh solonchak the studied elements form the following sequence: Cr>Cu>Ni>Pb. High toxicity of Cr compared to Pb, Ni and Cu in marsh solonchak is explained by weak alkaline reaction, in which CrO 3 is transformed into highly toxic chromate.

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Section: Introductionmentioning

confidence: 99%

Biodiagnostics of the Azov Seasolonchaks Condition Atchemical Contamination

Колесников¹,

Vernigorova²,

Казеев³

et al. 2016

Orient. J. Chem

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“…Previously used biological indicators performed well on the soils of dry steppes and semi-deserts [59], including saline soils [60].…”

Section: Discussionmentioning

confidence: 99%

Comparative Assessment of the Resistance to Lead (Pb) Pollution of Forest, Forest-Steppe, Steppe, and Mountain-Meadow Soils of the Central Ciscaucasia and the Caucasus Regions

Moshchenko

Колесников

Kuzina

et al. 2022

Forests

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Lead (Pb) is one of the most hazardous heavy-metal pollutants in the environment. However, the resistance of different soils and ecosystems to Pb pollution varies greatly. In the present study, the comparative assessment of the resistance to Pb contamination in the forest, forest-steppe, steppe, and mountain-meadow soils of the Central Ciscaucasia and the Caucasus regions was conducted. There were 10 types and subtypes of objects from the forest, forest-steppe, steppe, and mountain-meadow soils which were selected for this study. The laboratory modeling of the effect of chemical soil contamination with lead (II) oxide (PbO) at different concentrations, 100, 1000, and 10,000 mg/kg, were introduced into the soil to check the microbiological, biochemical, and phytotoxic properties of the soil after 30 days of incubation. Soil resistance to Pb stress was assessed by the degree of the decrease in the most sensitive and informative biological indicators of the soil condition. It has been found that the forest-steppe and steppe soils showed a greater resistance than that of the forest and mountain-meadow soils. The regional maximum permissible concentration (rMPC) of Pb was developed for the first time, according to the degree of violation of the ecosystem functions of the soils. The forecast maps were developed for the deterioration of the soil condition during the Pb contamination at variable concentrations in the Central Ciscaucasia and the Caucasus regions.

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“…The effect of hydrocarbon pollution on CA has been most frequently studied in the soils contaminated with oil, mazut, gasoline, and motor oils [ 21 , 23 , 24 ] and less frequently, with kerosene [ 10 ]. A high migration ability of kerosene and its toxicity for biota determined the need to assess the allowable load of hydrocarbons of this type on the components of ecosystems, especially, the areas adjacent to airfields and spaceports [ 19 , 25 , 27 , 37 , 46 , 47 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Kerosene Pollution on the Cellulolytic Activity of Albic Retisols and Arenosols (Aridic): A Laboratory Experiment

et al. 2022

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The results of a laboratory experiment modeling the effect of kerosene contamination on the cellulolytic activity of microbiocenosis of the Albic Retisol (Kaluga oblast, Russia) and Arenosol (Kyzylorda oblast, Republic of Kazakhstan) humus horizons are described. Cellulolytic activity is assessed according to the rate of weight loss in linen cloth fragments during the incubation for 0–3, 3–7, and 7–13 months. The intensity of cellulolytic activity in the unpolluted Albic Retisol is higher as compared with the Arenosol, which is determined by low acidity and an elevated content of organic matter and nutrients. The soil pollution with kerosene to 10 g/kg causes a reversible change in cellulolytic activity of both Albic Retisol and Arenosol (Aridic). A high load of kerosene (≥25 g/kg) inhibits cellulolytic activity in both soils over 13 months of observation. Supplementary Information The online version contains supplementary material available at 10.1134/S1064229322020119. Fig. S1. Cellulolytic activity of soils in a laboratory experiment: (a) initial state of linen tissue (test object) and (b) linen tissue after three months of incubation. Table S1. Properties of soil humus horizons. Table S2. Initial water content in the studied soil samples with due account for the added kerosene. Table S3. Cellulolytic activity in soils grouped according to kerosene load (rate of mass loss, mg/g soil per day. Table S4. Significance of differences between cellulolytic activities of contaminated soil samples relative control samples according to the Mann–Whitney U-test. Table S5. Kerosene content in the studied soil samples at the end of the experiment, % of the initial content.

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Modeling the effect of chemical pollution on biological properties of hydromorphic solonchaks in the dry steppe zone of southern Russia

Cited by 5 publications

References 2 publications

Biodiagnostics of the Azov Seasolonchaks Condition Atchemical Contamination

Biodiagnostics of the Azov Seasolonchaks Condition Atchemical Contamination

Comparative Assessment of the Resistance to Lead (Pb) Pollution of Forest, Forest-Steppe, Steppe, and Mountain-Meadow Soils of the Central Ciscaucasia and the Caucasus Regions

The Effect of Kerosene Pollution on the Cellulolytic Activity of Albic Retisols and Arenosols (Aridic): A Laboratory Experiment

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