Ecological Evaluation of the Content of Heavy Metals in Soils of Agrocenosis of Western Siberia

Yakimenko, V. N.; Konarbaeva, G. A.; Boiko, V. S.; Timokhin, A.Yu.

doi:10.18412/1816-0395-2020-12-52-57

Cited by 3 publications

(3 citation statements)

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“…Forest coverage rate (%): This indicator represents the area of forest resources and forest land owned by a certain area. In addition, when calculating the forest coverage rate, the area of shrubs, the area of farmland and forest network trees, and the coverage area of "four sides" (houseside, roadside, treeside and waterside) should also be included [10][11]. When the index value is higher, it not only means that the forest resources in the area are richer and the ecological balance is better; it also means that the living environment of wildlife and plants in the area is better, and the relationship between people and the natural environment is more harmonious.…”

Section: Ecological Environmentmentioning

confidence: 99%

Informatization construction of ecological civilization evaluation based on data mining technology

Yang

2022

E3S Web Conf.

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At present, the research on ecological civilization city construction in China is in the stage of blooming. The evaluation of ecological civilization, the indicator system and the implementation path are all in the preliminary stage of research, and a unified and complete understanding has not yet been formed. The purpose of this paper is to study the informatization construction of ecological civilization evaluation based on data mining technology. On the basis of a comprehensive understanding of the current research status of the development of ecological civilization, using the combination of subjective and objective screening methods, comprehensively considering the construction of ecological civilization, the evaluation index system suitable for the construction of ecological civilization is analyzed. This paper builds an ecological civilization evaluation system based on data mining technology, uses the system to evaluate the efficiency of ecological civilization construction in M province, and guides the construction of ecological civilization in China. Through the evaluation results, it enriches the understanding of ecological civilization construction, and scientifically grasps development advantages, providing the government with accurate and effective evaluation tools.

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Section: Ecological Environmentmentioning

confidence: 99%

Informatization construction of ecological civilization evaluation based on data mining technology

Yang

2022

E3S Web Conf.

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“…У зерновых возрастает доля зерна в общем урожае, повышается засухоустойчивость, зимостойкость и др. [29][30][31].…”

Section: материалы и методы исследованийunclassified

Fertility of irrigated lands in the south forest-steppe of the Omsk region

Boiko¹,

Timokhin²,

Mikhailov³

2021

TVAN

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Unsustainable irrigation of chernozems can lead to secondary salinization and other negative consequences. The purpose of the research was to assess the fertility and hydrochemical composition of meadow-chernozem soil of the forest-steppe of Western Siberia under conditions of prolonged irrigation. The surveys were carried out in the fields of the agricultural production cooperative (APC) “Pushkinsky” and Federal State Unitary Enterprise (FSUE) “Omskoye”; cultivation technology – adaptive system of irrigated agriculture. The studies were conducted in 2015–2020 on the Pushkin irrigation system. The object of the research – irrigated meadow-chernozem heavy loamy soil. The methods of route field research and laboratory analyzes were used. The results obtained were compared with the baseline values (1978). With long-term irrigation and intensive agricultural use, the fertility indicators of meadow-chernozem soil did not significantly deteriorate. The arable horizons have a neutral and close to neutral reaction (pH 5.8–6.2), average humus content (5.9–7.2%). The supply of nitrate nitrogen, as a rule, remained at a low and medium level (6.0–14.7 mg/kg) due to the high removal by vegetative crops and the absence of fallow fields in the structure of irrigated arable land. Long-term systematic application of phosphorus-containing fertilizers and creation of a positive P balance led to the improvement of soil phosphate status (99–177 mg/kg). The content of exchangeable potassium remains high (144–353 mg/kg) and is stable over time, which is a feature of chernozems with a heavy particle size distribution. The content of mobile forms of lead, zinc and cadmium does not exceed approximate permissible concentrations in the soil. When analyzing the cation-anionic composition of the water extract of the soil profile of FSUE “Omskoe”, a weak salinity of the chloride type was revealed in the 0.6-1.4 m layer; of the sulfate-chloride type – in the 1.4-1.8 m layer. In the future, it may lead to secondary salinization and serve as a limiting factor for high yields. The absorbing complex of meadow-chernozem soil in the southern forest-steppe is highly saturated with bases. Sodium concentration is minimal; calcium and magnesium cations prevail. The groundwater samples are moderately fresh and of good quality. Among the anions, HCО3- prevails, among the cations – Mg2+ and Ca2+, which indicates the need to control the groundwater level to maintain a favorable ecological state of meadow-chernozem soil.

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“…The biogeochemical problem of deficiency of Ca, Mg, K, Co, Cu, Mo, Zn for agricultural crops leads to decrease in yield and deterioration in the quality of plant products and then to a deficiency of these elements in the food chain and the resulting diseases of animals and humans (Rosanoff, 2013;Jayalaxmi et al, 2015;Cazzola et al, 2020;Yakimenko et al, 2020). Magnesium's main physiological role is to participate in the process of photosynthesis and nitrogen metabolism (Voevodina and Voevodin, 2015;Nechaeva et al, 2019;Abbas et al, 2024).…”

Section: Introductionmentioning

confidence: 99%

Magnesium in Soils of Agricultural Landscapes of Western Siberia

Boiko,

Yakimenko,

Timokhin

2024

IJARe

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Background: Western Siberia has great potential for crop and livestock production; it is limited by degradation of soil fertility due to depletion of biophilic elements, including Mg. Intensification of agricultural production requires monitoring and optimization of magnesium nutrition of field crops. This study aimed at investigating changes in content of magnesium forms Gleyic Chernozems and Luvic Greyzemic Phaeozem in the Western Siberia during their long-term agricultural use. Methods: Soil samples were taken from the fields of long-term experiments in 1978, 1988 and 2019. Three cores were taken from a soil layer 0-20, 20-40 cm thick and combined into composite samples. Composite samples were kept in the archives of the institute. Chemical analysis of composite soil samples was carried out in 2020. Chemical analyzes of soil and plants were carried out by conventional methods. Magnesium forms were extracted: easily exchangeable with 0.0025 M CaCl2 solution, exchangeable with 1 M CH3COONH4, non-exchangeable with 1 M HNO3 and determined on an atomic absorption spectrometer. Result: Systematic use of the ammonia form of nitrogen fertilizers (60-120 kg a.m./ha per year) led to a decrease in mobile forms of magnesium in the most root-inhabited soil layer. The removal of magnesium by potatoes was small (8-10 kg/ha, 80 % falls on the tops). Consequently, a significant decrease in the reserves of magnesium available to plants in soils is associated not so much with the alienation of the element with yield, but with leaching processes due to the displacement of magnesium from the soil-absorbing complex by ammonium ions introduced with fertilizers and also, probably, potassium.

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Ecological Evaluation of the Content of Heavy Metals in Soils of Agrocenosis of Western Siberia

Cited by 3 publications

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Informatization construction of ecological civilization evaluation based on data mining technology

Informatization construction of ecological civilization evaluation based on data mining technology

Fertility of irrigated lands in the south forest-steppe of the Omsk region

Magnesium in Soils of Agricultural Landscapes of Western Siberia

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