Salinization as the main soil-forming process in soils of natural oases in the Gobi desert

Pankova, E. I.; Aidarov, I. P.; Голованов, Д. Л.; Yamnova, I. A.

doi:10.1134/s1064229315100087

Cited by 13 publications

(10 citation statements)

References 4 publications

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“…It is known that salinized soils largely lose their natural properties [4][5][6][7]. Therefore, the determination of the factors causing salinization, its prevention, as well as the preservation, restoration of the fertility of saline soils and their rational use in agriculture are urgent tasks at a time when the area of saline lands is increasing as a result of natural processes and anthropogenic impact [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…The saline soils of different regions have been the subject of attention of many eminent scientists. In this regard, large-scale and research on the study of properties, ameliorative state and biological activity, improvement and increase in the fertility of saline soils common in different regions of the world in different years were carried out by N V Kimberg [8], V G Popov [12], V A Kovdym [9], A M Rasulov [13], E I Pankova [10,11], L T Tursunov [14] , I T Turapov [15] , S A Abdullaev [16]. Obviously, scientific research is being carried out in the world to prevent salinization processes that occur in the context of global climate change and mitigate its consequences, to identify the influence of external factors on soil properties, taking into account natural and climatic conditions [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Biodiagnostic survey of salt soils of the desert zone of Uzbekistan

Saidova

Gafurova

Kodirova

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The unfavorable climatic conditions of the desert territory are the reason for the reduced biological activity of the studied soils; the highest BA was observed mainly in spring. This is due to the presence of favorable hydrothermal conditions and nutrients for the occurrence of biological processes at this time, in summer there is a slight decrease and by autumn a slight increase in the biological activity of the soil. Also, it was found that the change in the general biological activity of soils depends on the content of humus and nutrients in them, the mechanical composition, the duration of irrigation and the degree of salinity. Thus, the results show that the integral indicator of soil biological activity can be widely used in assessing the response of the region’s soils to external influences, as well as the effectiveness of measures taken to preserve and increase soil fertility.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biodiagnostic survey of salt soils of the desert zone of Uzbekistan

Saidova

Gafurova

Kodirova

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Soil salinization of alluvial valleys with groundwater is a widespread process (Kovda, 1937;Pankova and Yamnova, 1993;Salama et al, 1999;Shishov and Pankova, 2006;Rodikova, 2007;Özcan et al, 2018). The depth from which groundwater can make the surface saline is determined by the dryness of the climate, mechanical composition of the soil, and its structure.…”

Section: Introductionmentioning

confidence: 99%

“…The main indicator of solonchak is the constant presence of readily soluble salts in the profile of the surface horizon in an amount that suppresses plant growth (Kovda, 1937;Shishov and Pankova, 2006). In the 0-20 cm layer, the critical level of toxic salts that stops plant growth is 1% (Pankova and Yamnova, 1993). Solonchaks belong to the intrazonal soil type and can form in different natural areas.…”

Section: Introductionmentioning

confidence: 99%

Formation of Solonchak in the Area of the Discharged Ancient Brine Wells (Perm Krai, Russia)

Khayrulina¹,

Mitrakova²,

Poroshina³

et al. 2022

Front. Environ. Sci.

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The change in soil-forming processes and, as a result, in the ecosystem due to nearly 300-year long outflow of highly saline waters from ancient brine wells is considered for Perm Krai in Russia for the first time. The study area is located in the high floodplain of the Usolka River valley. Sodium-chloride ancient brine wells with mineralization of about 30 g/L flow in streams over the soil surface and enter the Usolka River. The paper considers three soil types at various distances from a saline stream. The main pedogenic processes are the sod-forming process and gleying in alluvial soils. Soils in Gleyic Fluvisols (background)—Gleyic Fluvisols (Sulfatic) (transition)—Solonchak (affected by sodium-chloride brines) series were studied in terms of occurring soil-forming processes. All studied soils are formed under hydromorphic conditions. It is evidenced by gleization. However, the morphological and physicochemical properties of the soils differ. The presence of water-soluble ions in the solonchak suggests that salinization is occurring. The sum of toxic salts was 0.94% which was several times higher than in the transition and background soils. The sodium adsorption ratio (SAR) ranged from 10.4 to 21.6, with a рН of 8.3–9.1. The saline soils were more alkaline (pH average 8.8 and 9.3) than the background soil (pH 8.1). SAR decreased significantly in the Solonchak—transition—background soil series from 16.9 to 0.7. The aforementioned observations, as well as physical properties of the saline soil, clearly show the entry of sodium into the solonchak adsorption complex, indicating the solonization process. The study area is characterized by the presence of salt-tolerant species of herbaceous plants and an obligate halophyte. Salicornia perennans Willd, a halophyte, was discovered in the wells’ discharge area at a distance of 0.2–1.5 m from saline streams. The analysis of the long-term impact of highly mineralized waters on the natural environment will aid in revealing and forecasting ecosystem changes caused by potash mining in Perm Krai for environmental risk assessment for new and existing potash enterprises.

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“…One of the main issues related to soil science are study, analysis and retention of land degradation [BAGARELLO et al 2018;GREGORY et al 2015]. Nowadays, in addition to anthropogenic pressure, climate change also affects the acceleration of soil degradation, especially salinization in arid and semi-arid territories [CORWIN 2021;HAJ-AMOR, BOURI 2020;LIBUTTI et al 2018;PANKOVA et al 2015]. Moreover, such conditions contribute to an increased risk of desertification [SOLANGI et al 2019].…”

Section: Introductionmentioning

confidence: 99%

Journal of Water and Land Development

Suleymanov,

Gabbasova,

Suleymanov

et al. 2022

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Global climate change is a fact that affects all components of the environment. The main aim of this research was to conduct the retrospective monitoring of soils in the Trans-Ural Steppe Zone (Russia) and the analysis in changing of key climatic parameters for the periods 1937-1982 and 1982-2019. We investigated average temperatures and precipitation (monthly and annual) using archived data from a nearby weather station, as well as data from NASA and weather forecast websites. We identified a decrease of soil fertility and an increase in alkalinisation processes over the past 37 years for the studied area. Comparison of these periods showed an increasing the average monthly and annual air temperatures (on 1.4°C) and a decrease in the amount of precipitation in the summer (on 4.4 mm) period. We found that a more arid climate accelerates the rate of soil salinization due to the active evaporation of groundwater. Nevertheless, in some areas there were found the soil desalinization due to the change in the hydrologic regime and lowering of the groundwater level. In general, the climate changing in the studied region is consistent with global warming trend. Increased average annual temperature and reduced precipitation in summer period contribute to aridization of the region. Such conditions will more restrict soil fertility due to development of salinization and desertification processes.

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Salinization as the main soil-forming process in soils of natural oases in the Gobi desert

Cited by 13 publications

References 4 publications

Biodiagnostic survey of salt soils of the desert zone of Uzbekistan

Biodiagnostic survey of salt soils of the desert zone of Uzbekistan

Formation of Solonchak in the Area of the Discharged Ancient Brine Wells (Perm Krai, Russia)

Journal of Water and Land Development

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