Abstract
Purpose. Evaluation of the influence of Robinia pseudoacacia L. and Quercus robur L. forest plantations on thermal diffusivity, specific heat and thermal conductivity of southern chernozems. Methods. The thermophysical properties of soils were determined by the method of pulse heating using a specially developed installation and software. Soil temperature in the field was determined on the soil surface and at depths using temperature sensors. Air temperature was measured with a digital anemometer-thermometer-hygrometer Starmeter (ST8021). Results. The influence of forest plantations on thermophysical properties was performed using soil samples taken from zonal southern chernozems (used as a control), southern chernozems under R. pseudoacacia plantations and under Q. robur plantations near the city of Zelenodolsk (Kryvorizky district, Dnipropetrovsk region). It was established that the growth of forest plantations led to a decrease in the surface temperature, the temperature at a depth of 50 cm, and the average temperature of the 0–50 cm layer of southern chernozems compared to zonal southern chernozems. The 0–50 cm layer of zonal southern chernozem is characterized by sharper temperature changes compared to southern chernozem under forest plantations. The growth of the forest plantation of R. pseudoacacia on the southern chernozem led to an increase in the values of its thermophysical properties of the upper horizons compared to the zonal southern chernozem. The influence of planting Q. robur on southern chernozem led to an increase in its thermal diffusivity, a decrease in specific heat, and practically did not lead to changes in thermal conductivity. Conclusions. The growth of the R. pseudoacacia plantation leads to a more pronounced change in the thermophysical properties of southern chernozems compared to the Q. robur plantation, especially in the upper horizons of the studied southern chernozems.
Published Version
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