Elimination of the consequences of pasture digression in the desert-steppe zone with the help of phytomelioration

Vlasenko, M. V.; Shagaipov, M. M.

doi:10.1088/1755-1315/867/1/012081

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…The yield of natural vegetation is 70%, and is determined by the amount of accumulated moisture during the cold period [2]. In addition to climatic factors, the growth and development of plants are limited by anthropogenic factors (fires and overgrazing of farm animals on pastures), in addition to low nutrient content in the soil [3][4][5]. Pasture load remains the leading anthropogenic factor.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Models of the Dynamic Stability of Arid Pasture Ecosystems in the South of Russia

Salugin

Vlasenko

2022

Agronomy

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In this study, the issue of the ecological stability of the soil and vegetation cover of the North-Western Near-Caspian arid zones within the borders of the Black Lands (BL) of the Republic of Kalmykia was considered. Modeling was carried out of the open systems’ thermodynamics principles using continuous and discrete formalisms. Models presented in the form of systems of ordinary differential equations, Markov’s circuits, and autonomous impulse processes show the possibility of their application in the management of pasture feed stocks. Modeling with the systems of differential equations makes it possible to identify points of stable states of pasture systems. Markov circuits are able to establish an optimal animal load on these systems. A computational algorithm for determining the stability of pasture ecosystems using autonomous impulse processes allows optimization problems to be solved to determine the conditions for the spread of external influences. Computational experiments were carried out to determine the parameters of the model corresponding to the sustainable mode of operation in arid pasture ecosystems.

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Section: Introductionmentioning

confidence: 99%

Mathematical Models of the Dynamic Stability of Arid Pasture Ecosystems in the South of Russia

Salugin

Vlasenko

2022

Agronomy

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Restoration of Degraded Lands in the Arid Zone of the European Part of Russia by the Method of Phytomelioration

2022

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In arid areas, it is necessary to apply phytomelioration widely to create an organized, stable and ecologically well-maintained forest–agrarian landscape in which agricultural lands can provide diverse and stable products, and to provide optimum ecologyfor the existence of a natural and anthropogenic system. The aim of this work is to select shrub and herbaceous plant species for the restoration of degraded lands in the arid zone of the European part of Russia with the prospect of preserving and increasing the productivity of native biodiversity, and the structure and dynamics of pasture ecosystems. The object of this study is the desert and semi-desert zone in the south-east of the European part of Russia within the Caspian lowland. The productivity of vegetation in the studied zone is largely determined by soil conditions, seasonal weather phenomena and animal grazing. The lowest forage productivity is characterized by the winter period with very strongly beaten white-field-grain pastures on unsalted, weakly- and medium-salted light chestnut soils; very strongly beaten bulbous-bluegrass-white-field pastures on saline deep, medium and strongly saline light chestnut soils; or medium-beaten black-wormwood and bulbous-bluegrass-black-wormwood pastures on small and crusty salt flats. The highest productivity is observed in the spring-summer period on unbroken areas of unsalted, weakly and medium saline light chestnut soils occupied by white-field cereal phytocenoses. The intensity of transpiration of perennial forage grasses growing on sandy loam soils of the dry steppe zone was measured. The analysis of biomorphological features of native forage species resistant to climate change and pasture load, and promising for phytomeliorative reconstruction of degraded pastures include: ecotypes of the genus Artemisia (A. pauciflora, A. Lercheana) and the genus Agropyron (A. cristatum, A. fragile, A. pectinatum), growing on various soils in natural conditions in the south-east of the European part of Russia. It was revealed that the seed productivity of Agropyron varieties varies within 0.5–4.0 c/ha depending on the variety, the method of sowing and climatic conditions of the year. To increase seed productivity, wide-row sowing with row spacing widths of 45 and 70 cm is promising.

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Elimination of the consequences of pasture digression in the desert-steppe zone with the help of phytomelioration

Cited by 2 publications

References 3 publications

Mathematical Models of the Dynamic Stability of Arid Pasture Ecosystems in the South of Russia

Mathematical Models of the Dynamic Stability of Arid Pasture Ecosystems in the South of Russia

Restoration of Degraded Lands in the Arid Zone of the European Part of Russia by the Method of Phytomelioration

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