Siberian Journal of Life Sciences and Agriculture (Oct 2022)
THERMOPHYSICAL PROPERTIES OF SOILS OF THE VOLGOGRAD REGION
Abstract
The study of soil thermophysics is a complex process. It is connected with the weather conditions, the time of year, the cloud cover of the atmosphere. In addition, studies were carried out in a system of bands and the state of the surface layer was influenced by such processes as the number of LP, rock composition. On the interstitial cell – the presence or absence of vegetation, the phases of its development. Therefore, qualitative interpretations of soil temperature indicators will be subjective. Goal. Based on empirical data, using mathematical modeling based on soil temperature data, calculate the thermophysical characteristics of chestnut soils of the Volgograd region. Novelty. For the first time, the characteristics of their thermophysical properties have been calculated for chestnut complex soils. Methods. The soil temperature at a depth of 0–20 and 20–40 cm in the zone of influence of forest strips for a longterm period is considered. The studies were carried out on chestnut and light chestnut soils of the Volgograd region in the system of forest strips (LP). The soil temperature was determined in fields without plants and under crops. Results. The thermal conductivity and thermal conductivity of chestnut soils were determined. A method of thermal reclamation is considered, which, in the absence of evaporation from the soil surface, causes a negative thermal effect (-∆T). When the soil is open in the interband cell (due to increased heat capacity), it warms up more in forested fields than without forest strips (LP). Conclusion. Mathematical modeling was used in the calculations of the thermophysical characteristics of soils. Linear, for soil without plants, and exponential (under agricultural crops) dependences are obtained. Mathematical analysis of empirical data on soil temperature showed no differences in the thermophysics of soils with and without vegetation.
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