Water holding capacity of Russian Arctic soils (Lena River Delta and Yamal Peninsula)

Polyakov, Vyacheslav; Alekseev, Ivan; Orlova, Ksenia; Abakumov, Evgeny; Kostecki, Jakub

doi:10.37501/soilsa/121490

Cited by 5 publications

(2 citation statements)

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“…These pores retain moisture. Epipedons are often characterized by increased water holding capacity (Polyakov et al, 2020). Due to this, the epipedons not only easily absorb suspensions but also fix them, acting as sorption barriers not only for dissolved forms, but also for nanoparticles (colloids) (Kulizhskiy et al, 2013(Kulizhskiy et al, , 2017.…”

Section: Discussionmentioning

confidence: 99%

Evaluating the potential of capillary rise for the migration of Pt nanoparticles in Luvisols and Phaeozems (Western Siberia)

Loiko¹,

Константинов²,

Istigechev³

et al. 2021

Soil Sci. Ann.

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Numerous experiments with nanoparticles have recently led to a better understanding of the migration of colloids and larger particles in soils. However, it remains unclear how colloidal particles migrate in soil horizons without macropores, and whether they can move with the fl ow of capillary water. In this article, we tested the hypothesis that colloidal particles can be transported by water fl ow in capillary-sized soil pores. To test our hypothesis, column experiments with platinum nanoparticles were carried out. The columns contained undisturbed monoliths from the Luvisols and Phaeozems soil horizons in the southeast of Western Siberia. The lower part of the soil columns was immersed in a colloidal solution with platinum nanoparticles. Thus, we checked whether the nanoparticles would rise to the top of the columns. Platinum nanoparticles are a usable tracer of colloidal particle migration pathways. Due to the minimal background concentrations, platinum can be detected by inductively coupled plasma mass spectrometry (ICP-MS) in experimental samples. Due to their low zeta potential, nanoparticles are well transported over long distances through the pores. Our experiments made it possible to establish that the process of the transfer of nanoparticles with a fl ow of capillary water is possible in almost all the studied horizons. However, the transfer distances are limited to the fi rst tens of centimeters. The number of migrating nanoparticles and the distance of their transfer increase with an increase in the minimum moisture-holding capacity and decrease with an increase in the bulk density of soil horizons and an increase in the number of direct macropores. The migration of nanoparticles in capillary pores is limited in carbonate soil horizons. The transfer of colloidal particles through soil capillaries can occur in all directions, relative to the gravity gradient. Capillary transport plays an important role in the formation of the ice composition of permafrost soils, as well as in plant nutrition.

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Section: Discussionmentioning

confidence: 99%

Evaluating the potential of capillary rise for the migration of Pt nanoparticles in Luvisols and Phaeozems (Western Siberia)

Loiko¹,

Константинов²,

Istigechev³

et al. 2021

Soil Sci. Ann.

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“…In the season of summer, N2 is transported in the form of DON and nitrogen particulate matter in the suspension where the amount of nitrate is less than 1μmol/L. Not only nitrogen but also different turnover of carbon, methane, methanotropic community and other substances have been seen that all are influence greatly by the soil microbes [63][64][65][66][67][68][69][70][71][72].…”

Section: Lena River Deltamentioning

confidence: 99%

Microbial Prevalence in Soil Water in the River Deltas of the World

Ghosh,

Acharya

2024

SAJRM

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There is a wide range of diverse soil and aquatic microbes reside in different deltas of the world that mainly exhibit in various forms such as bacteria, fungi, parasites, archaeans, actinomycetes, virus etc. They contribute to the environment in various ways to maintain the balance of natural elements, bio geological components and also help in protecting the ecological components. Microbes that are living in the soil provide plants along with environmental and natural protection from diseases and pests. They are very much essential for transforming nitrogen and nutrients into the forms that is consumable for plants. Decomposition, production of Oxygen, evolution, as well as symbiosis are the vital roles that are played by different soil and aquatic microbes. Some river deltas show maximum populations of saline soil dependent bacterial and fungal community, where as some river deltas are enriched with some specific microbes that are responsible for soil remediation. In some cases some species of hydrocarbon degrading microorganisms contribute to differences in C, N, P ratios. As the microbes are also responsible for producing different antigens as well as allergens that are mainly causative agents for varying infectious diseases, in need of its curative drugs and antibiotic medicines some microbes are involved in research studies for production of medicinal drugs and anti-allergens.

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The change process of soil hydrological properties in the permafrost active layer of the Qinghai–Tibet Plateau

Wang

Gao

2022

CATENA

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Water holding capacity of Russian Arctic soils (Lena River Delta and Yamal Peninsula)

Cited by 5 publications

References 0 publications

Evaluating the potential of capillary rise for the migration of Pt nanoparticles in Luvisols and Phaeozems (Western Siberia)

Evaluating the potential of capillary rise for the migration of Pt nanoparticles in Luvisols and Phaeozems (Western Siberia)

Microbial Prevalence in Soil Water in the River Deltas of the World

The change process of soil hydrological properties in the permafrost active layer of the Qinghai–Tibet Plateau

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