Influence of protective forest plantings and microrelief on the productivity of forage lands in the sarpinskaya lowland

2022

Agronomy

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.

Section: Resultsmentioning

confidence: 99%

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

Salugin

2022

Agronomy

“…Studies of the current state of ETR pastures allow us to conclude that it is possible to increase the productivity of fodder land 1.5-2.0 times compared to that of natural pastures [11]. Effective pasture improvement methods are based on the ecology and biology of fodder plants in agrotechnical experiments [12].…”

Section: Resultsmentioning

confidence: 99%

Technologies for the rational use and improvement of hayfields and pastures in arid territories of Russia

IOP Conf. Ser.: Earth Environ. Sci.

Turko

Trubakova

2022

Materials are presented on the enrichment of natural hayfields and pastures in the south of the European Territory of Russia (ETR) with valuable forage grasses by methods improvement. The work is based on modern methods of landscape-bio-ecological research using scientific and practical methods for restoring and prolonging the productive longevity of pastures. Effective measures to improve forage land provide an increase in productivity of 1.5-2.0 times compared with natural pastures. Agrotechnical methods are given, including soil preparation, norms and timing of sowing. Attention is paid to the selection of sown species, the composition of mixtures and the ratio of the life forms of herbs.

“…Artemisia austriaca: Cop1 3 ; Artemisia lerchiana: Cop1 3 ; Cichorium intybus: Sol. 3 ; Cirsium arvense: Sp. 1 ; Crepis tectorum: Sp.…”

Section: Asteraceaeunclassified

“…Currently, the feed industry is aimed at creating a system of environmentally safe and cost-effective technologies that can restore biological diversity, fertility and the structure of disturbed ecosystems. The system for assessing the adaptive and productive potential of forage species and ecotypes makes it possible to predict the productivity and state of phytocenoses depending on the intensity of stress factors and the prospects for their use [1][2][3][4]. The main principle of adaptive land use of arid territories is the selection of optimal ecotypes, varieties, and species of cultivated grasses, which in the course of their phylogenetic development have adapted to the harsh environmental conditions of arid regions [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Pasture phytocomplexes of Pridonye: Ecological situation

2023

E3S Web Conf.

The purpose of the work is to establish the ecological situation in the pasture phytocomplexes of the Don basin. The objects of research were plant communities on floodplain sod-meadow granular soils and on the sands of the Ilovlinsky massif of the Volgograd region. The occurrence of species on the Drude scale, the vital state of plants, the projective cover of vegetation, and the feed mass consumed were determined. It is established that the main mass of vegetation is oppressed or is in a satisfactory condition. The dominant phytocomplexes are representatives of the Asteraceae families that are resistant to anthropogenic loads and lodging, with a wide ecological amplitude (30% on floodplain sod-meadow granular soils, 38% on sands) and Poaceae (13% on floodplain sod-meadow granular soils, 29% on sands). On floodplain sod-meadow granular soils with a projective vegetation cover of 45%, the feed mass of autumn pastures was 51.2 g/m2, on sands with an average projective vegetation cover of 21%, the feed mass was 24.4 g/m2.