Dynamics of Modern Vegetation for Pasture Use in the Northwestern Pre-Caspian Region

Лазарева, В. Г.; Bananova, V. A.; Zung, Nguyen Van

doi:10.1134/s2079096120040137

Cited by 14 publications

(9 citation statements)

References 4 publications

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“…More than 70% of agricultural land is subject to wind erosion. Solonetzes and solonchaks are widespread (Tashninova, 2015;Bakinova et al, 2019;Sangadzhieva et al, 2019;Lazareva et al, 2020).…”

Section: Methodsmentioning

confidence: 99%

Characterization of arid soil quality: Physical and chemical parameters

Adyanova

Khashaeva

MUKABENOVA

et al. 2023

EJSS

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Land degradation especially as a result of the rapid increase in demand and pressure in the population, have emerged as one of the most important problems. Degradation leads to the loss of biological and economic productivity due to the fact that the soil loses its functional properties, which are one of the most important elements of the terrestrial ecosystem. Combined with excessive biophysical and socio-economic damage in arid areas, land degradation causes irreversible consequences leading to desertification. Thus, land degradation is an environmental threat not only on a local or regional scale, but also on a continental or even global scale. The change in the state of soils as a result of anthropogenic impact and climatic changes determines the relevance of conducting a study of the soils of the Republic of Kalmykia. Endosalic Calcisols of sandy loam and sandy granulometric composition predominate in the structure of the soil cover of the southern part of the Caspian lowland, significant areas are occupied by sands. More than 70% of agricultural land is subject to wind erosion. Salt marshes are widely distributed.

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Section: Methodsmentioning

confidence: 99%

Characterization of arid soil quality: Physical and chemical parameters

Adyanova

Khashaeva

MUKABENOVA

et al. 2023

EJSS

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“…В данное время объем пастбищных кормов составляет порядка 830 тысяч тонн кормовых единиц, что ниже потребности животноводства в 1,5 раза. Преобладающие растительные ассоциации -полынно-мятликовоосоковые, мятликово-типчаково-полынные, мятликово-ковыльнополынные, мятликово-полынно-солянковые с низким видовым разнообразием -от 10 до 17 видов на 100 м 2 . Проективное покрытие почвы растениями от 30 до 60 %, что свидетельствует о разреженности растительного покрова.…”

Section: резюмеunclassified

Steppe ecosystems of the arid zone of southern Russia as a factor in the effective development of livestock farming

Surov,

Lapenko,

Khonina

et al. 2024

Ûg Ross.: èkol. razvit.

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The aim of the research is to assess the current state of steppe ecosystems, which are subjected to human impact and to provide scientifically‐based proposals for the conservation and regeneration of their natural potential.The object of the study is the steppe ecosystems of the arid zone in the Stavropol Territory. The research conducted in 2019–2021 included the use of methods and techniques, encompassing the geobotanical, economic and statistical, abstract and logical, computational and constructive.An analysis of the natural resource potential of the steppes in the arid zone of Stavropol Territory showed a discrepancy between the current livestock and the carrying capacity of this territory. The forage for grazing is about 830 thousand tons of feed units, which is 1.5 times lower than the livestock needs. The predominant plant associations are wormwoodbluegrass‐sedge, bluegrass‐sheep fescue‐wormwood, bluegrass‐feather grass‐wormwood, bluegrass‐ wormwood‐salt grass with low species diversity – from 10 to 17 species per 100 m2. The plant cover of the soil is from 30 to 60 %, which indicates its sparseness. The average biological yield of phytomass is 7.0 kg/ha of air‐dry matter. The species diversity of the steppe communities is represented by weed species that have low forage quality. In natural phytocenoses, the cereals dominant in forming cenoses in virgin land, have been lost. There are no any representatives of the legume family in the plant stand.The scientific approach to sustainable development, conservation and regeneration of the potential of natural ecosystems in agricultural landscapes involves the rational use and improvement (rehabilitation) of the remaining low‐yield natural grass stands that have lost the ability of regeneration.

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“…Grazing leads to the creation of conditions of greater dryness of the soil and contributes to the preservation of plants of the xerophilic series. When overloading pastures with cattle, there is an exogenous succession of a regressive type [6]. There is no significant difference in phytomass reserves, with the same degree of degradation between steppe, desert, and semi-desert communities.…”

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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Dynamics of Modern Vegetation for Pasture Use in the Northwestern Pre-Caspian Region

Cited by 14 publications

References 4 publications

Characterization of arid soil quality: Physical and chemical parameters

Characterization of arid soil quality: Physical and chemical parameters

Steppe ecosystems of the arid zone of southern Russia as a factor in the effective development of livestock farming

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

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