Changing in Water-physical Properties of Drained Peat Soils during Extraction and Exploration of Minerals in the Conditions of the Northern Urals

Motorin, Yuri; Iglovikov, Anatoly; Букин, А. В.

doi:10.1088/1755-1315/194/8/082026

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…The intensity of the use of lands involved in agricultural use leads to a decrease in the organic soil matter reserves [20]. This leads to deterioration of the water regime, erosion resistance of the soil, and decrease in nutrients [21,22]. Increasing and stabilizing carbon stocks in soils is an important task in the conditions of modern carbon-saving agriculture [23].…”

Section: Resultsmentioning

confidence: 99%

Intake and fixation of organic carbon in grain agrophytocenosis of Western Siberia

Demin¹

2022

IOP Conf. Ser.: Earth Environ. Sci.

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In nature, carbon plays an important role in the circulation of organic matter in the soil-plant-atmosphere system. To understand the full picture of the farming system impact on carbon dioxide emissions, long-term stationary experiments are needed, which will reduce the influence of weather conditions on changes in organic carbon stocks in soils and develop an optimal model of the crop cultivation system considering the positive balance of organic carbon in soils. The research was carried out from 1995 to 2020 in the grain crop rotation at the station of the Department of Soil Science and Agrochemistry of the SAU of the Northern Trans-Urals, near vil. Utyashevo in the Tyumen region. Purpose. The purpose of the research was to establish the effect of increasing doses of mineral fertilizers on the intake and fixation of organic carbon with plant residues in the grain agrophytocenosis in the conditions of the forest-steppe zone of the Trans-Urals. The refusal to use mineral fertilizers leads to annual losses of organic carbon in the form of CO2 up to 0.6 t/ha. The use of high doses of mineral fertilizers for the planned yield of 5.0 and 6.0 t/ha of grain annually increases the emission of CO2 by 0.4-0.6 t/ha per year. In these variants, the carbon received from plant residues is not fixed in the soil. A positive balance of organic carbon is provided only by the use of doses of mineral fertilizers for the planned yield of 3.0 and 4.0 t/ha of grain, which annually increases the carbon stock in the soil by 0.4-0.6 t/ha, and up to 14-21% is fixed from the incoming organic carbon in the form of plant residues in the soil.

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Section: Resultsmentioning

confidence: 99%

Intake and fixation of organic carbon in grain agrophytocenosis of Western Siberia

Demin¹

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…It is synthesized annually in the soil, but at the same time it is actively mineralized to inorganic compounds. In natural biocenoses, the humus dynamics is stable and is determined by external factors, which include water, salt, and temperature regimes [1,2,3]. The organic matter formed during photosynthesis in biocenoses eventually enters the soil and is processed by microorganisms [4,5].…”

Section: Introductionmentioning

confidence: 99%

Balance model of humus state of arable chernozems of the Western Siberia

Demin

Eremina

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The results of model simulation of the humus state of arable soils in the Western Siberia based on long-term stationary studies and agrochemical monitoring of agricultural lands are presented. The following were studied: leached chernozem; podzolized chernozem; meadow-chernozem and dark gray forest soils. It was found that the nature of the root system formation depends on the biological characteristics of crops and cultivation conditions (the level of mineral nutrition, moisture). The mass of crop-root residues, as well as straw, is in close correlation with the yield of grain crops. Based on the actual data, regression equations were obtained with a high degree of reliability of the calculated data (approximation coefficient from R2= 0.84 to R2 = 0.93). Using the balance model of humus formation, it was found that the podzolized chernozem and dark gray forest soil were the least resistant to the anthropogenic factor. As a result of prolonged agricultural activity (52 years), humus losses in them amounted to 28 and 37 t/ha, which corresponded to annual losses of 0.54 and 0.71 t/ha. Leached arable chernozems lost 24 t/ha of humus, which corresponded to annual losses of 0.46 t/ha. In the course of the study, it was revealed that the arable land of the Western Siberia has a stable negative balance of humus state, which requires optimization of the farming system in the region.

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“…The switch to a market economy promoted the transformation of the agricultural system in the direction of increasing the productivity of arable land with a simultaneous reduction in the product cost. This caused many farms to reject a set of measures to increase the fertility of arable land and increase the anthropogenic load on the soil [4,5,6].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of agrochemical properties of gray forest soil of the Western Siberia’s sub-boreal zone affected by a long-term agricultural exploitation

Eremin

Renev

2021

BIO Web Conf.

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We studied the changes in the agrochemical properties of the gray forest soil in the territory of Western Siberia’s sub-boreal zone affected by the long-term use of the organomineral fertilizers in the grain-follow-row crop rotation and in its absence. We used virgin areas of gray forest soil situated in the immediate proximity to the fields as a control. The anthropogenic changes of morphological features throughout the gray forest soil profile were identified based on the use of fixed permanent plots laid down in 1960. This paper describes the dynamics of the actual, exchange, and hydrolytic acidity as well as the amount of absorbed bases, together with the base exchange capacity and the degree of base saturation. The study of arable gray forest soil for the period 1960-2020 was performed. This provided an opportunity to identify the causes of its chemical degradation in the sub-boreal zone of the Trans-Urals under the conditions of a plant residue shortage. The systematic use of mineral fertilizers affects the base exchange capacity and triggers an increase in the arable layer’s acidity. The use of an organic fertilizer system stabilizes the chemical properties of gray forest soil.

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Changing in Water-physical Properties of Drained Peat Soils during Extraction and Exploration of Minerals in the Conditions of the Northern Urals

Cited by 7 publications

References 7 publications

Intake and fixation of organic carbon in grain agrophytocenosis of Western Siberia

Intake and fixation of organic carbon in grain agrophytocenosis of Western Siberia

Balance model of humus state of arable chernozems of the Western Siberia

Dynamics of agrochemical properties of gray forest soil of the Western Siberia’s sub-boreal zone affected by a long-term agricultural exploitation

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