Moisture regime of typical chernozems under the mown Steppe and plowland of Kursk oblast under the anomalous weather conditions of the last decades

Bazykina, G. S.; Boiko, Olena

doi:10.1134/s1064229310010072

Cited by 8 publications

(3 citation statements)

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“…As has been recently shown, the carbonate profiles in arable and natural soils of the forest-steppe on the Central Russian Upland underwent evident morphological transformations in response to climatic changes in the last decades [8]. The meteorological instrumental observations revealed a distinct trend towards winter warming and precipitation increase in the central regions of Russia [35]. Hence, our knowledge about the carbonate profile and the predictability of its reaction to the climatic fluctuations are of particular importance.…”

Section: Introductionmentioning

confidence: 91%

Dynamics of Carbonates in Soils under Different Land Use in Forest-Steppe Area of Russia Using Stable and Radiogenic Carbon Isotope Data

Khokhlova

Myakshina

2018

Geosciences

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The work is aimed at the analysis of carbonate dynamics in soils under different land use. The studied area is located in the forest steppe -of the Central Russian Upland. Soils were sampled at four sites: a broadleaf forest, an adjacent 50-year continuously cropped field including plots under a corn monoculture, bare fallow, and a crop rotation area with a clean fallow every fourth year. The carbonates' morphology, their chemical composition, as well as their stable and radiogenic isotopes of carbon were studied. Clear-cut distinctions were found in the carbonate distribution throughout the profiles in the microstructure of carbonate pedofeatures, carbon isotopic composition, and radiocarbon age of carbonates between the pairs of the plots as follows: the bare fallow and the crop rotation on the one hand, and the corn monoculture and forest on the other. The distinctions are commonly assumed to result from repeating upward water fluxes, which are different in the bare soils and those with plant cover. A clear difference occurred in the hydrothermal regime for soils with and without plant cover, and was found to be the key factor of the observed differences. In addition, in soils under plant cover, the carbonate migration upward occurs due to process of transpiration, whereas in soils devoid of plants, it occurs due to physical evaporation.

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Section: Introductionmentioning

confidence: 91%

Dynamics of Carbonates in Soils under Different Land Use in Forest-Steppe Area of Russia Using Stable and Radiogenic Carbon Isotope Data

Khokhlova

Myakshina

2018

Geosciences

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“…The third factor that influences the moisture content in steppe soils is the abundance of vegetation. Plants absorb water from the soil and create a drying horizon at depths of approximately 1-1.5 m (Bazykina & Boiko, 2010;Chen et al, 2007;N. Robinson et al, 2006).…”

Section: Impact Of Grazing On Physicochemical Propertiesmentioning

confidence: 99%

Influence of grazing on the structure and biological activity of dry steppe soils of the southern Russian Plain

et al. 2021

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A comparative analysis of physicochemical and biological properties of Kastanozems and Solonetzes, the two most common soil types in the Caspian region of the post-Soviet territory was carried out. The carbonate, salt, Corg, mineral N (NH 4 + and NO 3 À ) contents, microbial biomass (measured by ds-DNA and phospholipids), and activity of 17 hydrolases involved in the C, N, P, and S cycles were measured along the grazing attenuation gradient near a typical sheep farm with year-round grazing. Heavy grazing increases the number of Solonetz areas, they occupy up to 70% of the soil cover. Further away from the farm the areas decrease, and Kastanozems dominate there instead.Both in Kastanozems and Solonetzes, heavy grazing leads to soil salinisation, accumulation of carbonates and nitrates, decrease in ammonia and Corg content, microbial biomass, and enzymatic activity. At moderate grazing, a significant increase in microbial biomass and enzymatic activity throughout the soil profile, particularly in the 0-10 cm layer was found; at light grazing, it was observed mainly in deeper soil layers, not in the upper 0-10 cm. The microbial biomass and enzymatic activity of soils did not directly follow grazing load and was maximal at moderate grazing, where negative effect of reducing phytomass is compensated by large inputs of animal excreta, stimulating development of soil microbial community. Compared to Kastanozems, Solonetzes were more resistant to pasture load, and under heavy grazing, their properties changed to a lesser extent.

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“…Soil physical properties comprised a set of properties that characterize the physical state of the soil and its relationship to various tangible influences (granulometric composition, the specific gravity of the solid phase, soil density, porosity, soil hardness, structuralaggregate composition, air, water, thermal, electrical, and radioactive properties). Moisture is one of the vital and highly variable components required of the soil (Borodin and Krylach, 2008;Bazykina and Boiko, 2010;Błaszkiewicz and Sztukowski, 2019;Bastaubayeva et al, 2022). With the influence of water, weathering processes, humification, and mineralization of organic residues occur.…”

Section: Introductionmentioning

confidence: 99%

Irrigation and Mineral Fertilizer Effects on Physical Properties of Light Chestnut Soil Used in the Cultivation of Sugar Beet (Beta Vulgaris L.)

BASTAUBAYEVA¹,

AMANGALIEV²,

ZHUSSUPBEKOV³

et al. 2023

SABRAOJBG

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This work studied the effect of irrigation and mineral fertilizers on the physical properties of light chestnut soil used in cultivating sugar beet (Beta vulgaris L.). The experiment happened in 2021 on an irrigated field with an area of 2 ha in the territory of the Kazakh Research Institute of Agriculture and Plant Growing, District Karasai, Almaty region, Kazakhstan. A sugar beet hybrid (obtained from domestic selection ‘Aksu’ and foreign selection ‘Yampol’) cultivation used four levels of mineral fertilizers, i.e., 0:0:0 (control), 90:90:60, 120:120:90, and 150:150:120 NPK kg ha-1. During the sugar beet growing season, all periods of observations recorded an increase in the bulk density in the upper, middle, and lower soil layers, from 1.14–1.27 g/cm3 to 1.31–1.48 g/cm3. The content of agronomically valuable aggregates in 0–10 cm, 10–20 cm, and 20–30 cm soil layers decreased from the germination phase to harvesting of sugar beet in extensive technology (10.0%–15.7%) and intensive technologies (2.3%–13.1%). In these soil layers, the number of water-stable aggregates decreased from the beginning of renewal to the end of the growing season of sugar beet in technology without the use of fertilizers (2.9%–6.4%) and in technologies with the application of mineral fertilizers (1.6%–7.6%). In the soil layers, the noted highest content of productive moisture occurred in the phase of closing the leaves in the rows with the extensive technology of sugar beet cultivation (51.5–213.2 mm). Irrigation during the sugar beet growing season reduces the content of agronomically-valuable and water-stable aggregates in soil layers to the minimum values for harvesting in technology without the use of fertilizers (50.5%–54.4% and 12.9%–14.2%) and technology with the use of mineral fertilizers (52.3%–54.4% and 10.9%–13.5%), respectively.

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Moisture regime of typical chernozems under the mown Steppe and plowland of Kursk oblast under the anomalous weather conditions of the last decades

Cited by 8 publications

References 1 publication

Dynamics of Carbonates in Soils under Different Land Use in Forest-Steppe Area of Russia Using Stable and Radiogenic Carbon Isotope Data

Dynamics of Carbonates in Soils under Different Land Use in Forest-Steppe Area of Russia Using Stable and Radiogenic Carbon Isotope Data

Influence of grazing on the structure and biological activity of dry steppe soils of the southern Russian Plain

Irrigation and Mineral Fertilizer Effects on Physical Properties of Light Chestnut Soil Used in the Cultivation of Sugar Beet (Beta Vulgaris L.)

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