Salt-affected soils of the Rostov Lowland (Yaroslavl' region): morphology, genesis and dynamics of salinization in the annual hydrological cycle

Simonova, J. V.; Rusakov, Alexey; Rjumin, A. G.

doi:10.19047/0136-1694-2018-93-40-74

Cited by 4 publications

(5 citation statements)

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“…The impact of highly mineralized waters of different chemical composition on the ecosystem is a relevant issue for many regions and countries (Hulisz et al, 2013;Lapinskaya and Basalay, 2014;Akpan et al, 2015;Hulisz et al, 2017;Kulizhskiy et al, 2017;Xie et al, 2019;Ditz et al, 2020;Yin et al, 2022). Changes in the chemical composition of surface water and groundwater affect the composition of vegetation species (Khayrulina, 2014;Khayrulina et al, 2017;Simonova et al, 2018;Simonova et al, 2020a). Soils are negatively affected, as evidenced by changes in their physical and chemical properties (Akpan et al, 2015;Hulisz et al, 2017;Simonova et al, 2018;Özcan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Changes in the chemical composition of surface water and groundwater affect the composition of vegetation species (Khayrulina, 2014;Khayrulina et al, 2017;Simonova et al, 2018;Simonova et al, 2020a). Soils are negatively affected, as evidenced by changes in their physical and chemical properties (Akpan et al, 2015;Hulisz et al, 2017;Simonova et al, 2018;Özcan et al, 2018). The formation of solonchaks in a humid zone with a leaching water regime is induced by the inflow of sodium chloride brines into the soil, which is normally caused by human activity (Khayrulina, 2014;Simonova et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Soils are negatively affected, as evidenced by changes in their physical and chemical properties (Akpan et al, 2015;Hulisz et al, 2017;Simonova et al, 2018;Özcan et al, 2018). The formation of solonchaks in a humid zone with a leaching water regime is induced by the inflow of sodium chloride brines into the soil, which is normally caused by human activity (Khayrulina, 2014;Simonova et al, 2018). Groundwater and surface water redistribute accumulated salts in the soil profile, which leads to the emergence of solonchaks or secondary solonchaks in landscapes with a leaching water regime.…”

Section: Introductionmentioning

confidence: 99%

“…Groundwater and surface water redistribute accumulated salts in the soil profile, which leads to the emergence of solonchaks or secondary solonchaks in landscapes with a leaching water regime. Solonchaks formed under these conditions show the spatial variability of salinity, which is associated with soil heterogeneity and changes in the groundwater level (Salama et al, 1999;Rodikova, 2007;Khayrulina, 2014;Simonova et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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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“…Подземные воды, перераспределяя накопленные соли в почвенном профиле, обусловливают возникновение солончаковых почв или вторичных солончаков. Засоление почв сопровождается изменением их химических и морфологических свойств, что приводит к смене растительности, снижению биоразнообразия [3,5,6]. В северной части Пермского края техногенное засоление почв связано с разработкой полезных ископаемых.…”

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Modeling as a tool for soil transformation forecasting under technogenic salinization

Sairanova,

Khayrulina,

Mitrakova

et al. 2023

TaAE

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The problem of soil salinization is relevant not only for agricultural areas but also for mining, where brines enter the surface as formation water or runoff from sludge storage facilities and salt dumps of mining enterprises. Currently, there is little elaboration of assessment and lack of normative support (MPC, APC) for assessment of technogenic salinisation of soils. The aim of this research is to develop a mathematical model for predicting the transformation of soils affected by technogenic salinization. The research focuses on soils in three types of landscapes, namely eluvial, transitional, and alluvial, located in the area of technogenic salinization. To develop the model, information-logical analysis and soil indicators were employed. These indicators were determined by standard methods. According to the information-logical analysis the sodium adsorption coefficient is the dominant factor of soils’ salinity; descending further: calcium ion content, sulfates content in the soil water extract and the calculated indicators (∆pH and pH) of the salt extract. The model showed that the highest amount of toxic salts is observed when pHKCl ranges from 5.3 to 7.4, sulfate content is above 500 mg/kg, calcium content is above 1000 mg/kg, SAR is above 10, and ∆pH is below 0.5. These indicator values correspond to alluvial soils found in small river valleys; these soils are highly prone to transformation. Using the obtained information-logical model and soil indicators, it is possible to make a forecast of soil transformation under technogenic salinization.

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Electrical characteristics of soils as affected by hydromorphic salinization (case study of the Upper Volga region)

Simonova

Rusakov

2019

IOP Conf. Ser.: Earth Environ. Sci.

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Salt-affected soils of the Rostov Lowland (Yaroslavl' region): morphology, genesis and dynamics of salinization in the annual hydrological cycle

Cited by 4 publications

References 4 publications

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

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

Modeling as a tool for soil transformation forecasting under technogenic salinization

Electrical characteristics of soils as affected by hydromorphic salinization (case study of the Upper Volga region)

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