Abstract
The proposed method of temperature labeling makes it possible to study the convective heat transfer by fast water flows. A filtration experiment on the transfer of heated moisture in the plow layer of a light loamy soddy-podzolic soil of Moscow region has been performed. The high unevenness of the front of the water migration in the experiment is related to the spatial distribution of the major pores and leads to sharp changes in the soil temperature. Temperature measurements in large lysimeters of Moscow State University filled with soddy-podzolic soils indicate that there are short periods of rapid changes in the soil temperature during the snowmelt season and upon heavy showers. These changes are related to intense gravitational water flows. In the soils with a distinct blocky structure of the upper horizon, the convective transfer of heat is better expressed than that in the soils with a crumb or granular structure of the plow layer.
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Original Russian Text © A.B. Umarova, O.A. Samoilov, 2011, published in Pochvovedenie, 2011, No. 6, pp. 731–737.
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Umarova, A.B., Samoilov, O.A. The study of preferential water flows and convective heat transfer using the method of temperature labeling. Eurasian Soil Sc. 44, 670–676 (2011). https://doi.org/10.1134/S1064229311060160
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DOI: https://doi.org/10.1134/S1064229311060160