Ecological reaction of spring soft wheat (Triticum aestivum L.) in arid steppe agrolandscapes to the dynamics of hydrothermal conditions
Экологическая реакция пшеницы мягкой яровой (Triticum aestivum L.) в агроландшафтах засушливой степи на динамику гидротермических условий
Zhumanazarov K.B. Tatarintsev L.M.
2025North Caucasian Institute of Mining and Metallurgy, State Technological University
Sustainable Development of Mountain Territories
2025#17Issue 31458 - 1472 pp.
The purpose of the study: assessment of the influence of temperature and precipitation during the growing season on soft spring wheat on environmental factors in the arid steppe of the Altai Krai to increase the sustainability of agricultural land use. Research methods. In scientific work, the retrospective method, system analysis, the method of observation in field experience, as well as methods of mathematical statistics in data processing and substantiation of the reliability of the results were widely used. Research results. The results obtained made it possible to determine the limiting effect on the productivity of soft spring wheat in time and space and to establish mathematically confirmed patterns between the hydrothermal conditions inherent in the agro-landscapes of the arid steppe of the Altai Krai. Based on the established ecological response of wheat in the long-term lag, yield ranking was performed, which makes it possible to update the structure of acreage, land, and crop rotations at the local level of agricultural landscape sustainability management. Conclusions. 1. The scientific article presents the results of a study of the ecological reaction of soft spring wheat to the dynamics of hydrothermal conditions in the arid steppe of the Altai Krai in 2000–2021 for the purposes of managing the sustainability of agricultural landscapes. 2. The long-term dynamics of the average annual, minimum and maximum wheat yields, as well as its variation over the studied lag, have been established. The dependence of wheat yield on the НTC of G.T. Selyaninov in different phases of ontogenesis is determined. It is shown that ∑t>10 °C. During the growing season as a whole and its average part (June+July), 74–72 % of the yield variation is determined, the amount of heat in June is 53 %, and the amount of precipitation in June is 52–56 %. The variation and distribution of wheat yield frequencies depending on the hydrothermal conditions of the growing season in the studied lag was revealed. The state of the hydrothermal conditions of the growing season of the arid steppe at different levels (ranks) of wheat yield was found out: by the sum of atmospheric precipitation and ∑t>10 °C for the V–VIII, VI–VII, VI and VII months; lack of precipitation and excess heat for the V–VIII, VI–VII months. The assessment of the ecological response of wheat to the dynamics of hydrothermal conditions showed the need to change the structure of acreage in modern agricultural landscapes of the arid steppe. 3. The results of scientific research can be applied to the assessment and modeling of agricultural landscapes and their sustainability management at the local level.
hydrothermal coefficient of G.T. Selyaninov , precipitation , Productivity , sustainability management of agricultural landscapes , temperature , wheat
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S. Seifullin Kazak Agro-technical Research University, 62, Zhenis Ave., Astana, 010000, Kazakhstan
Altai State Agrarian University, 73, Krasnoarmeysky Ave., Altai Territory, Barnaul, 656049, Russian Federation
S. Seifullin Kazak Agro-technical Research University
Altai State Agrarian University
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