Makarychev S.V., Patrushev V.Yu.

General and thermophysical properties of sod-podzolic soil under strawberry plantations in the conditions of the Altai forest-steppe

The sod-podzolic soil occupied by strawberry plantings is characterized by sandy loam granulometric composition with a predominance of medium and fine sand. The density of the soil composition during the transition from the arable horizon to the soil-forming rock increases from 1.13 to 1.52 g / cm3, but the density of the solid phase changes slightly. In all genetic horizons of the soil, the volumetric heat capacity is a function of three soil-physical factors: addition density, humidity and temperature. In comparison with the absolutely dry state, the heat capacity at full moisture capacity (PV) increases by 2-3 times. The thermal conductivity of the soil increases exponentially at the beginning of moistening, and when the entire pore space is filled with water, it reaches a maximum. The extreme of thermal conductivity is observed at the lowest moisture capacity (HB).

Keywords: SOD-PODZOLIC SOIL, HUMIDITY, DENSITY, DISPERSION, HYDROLOGICAL CONSTANTS, VOLUMETRIC HEAT CAPACITY, THERMAL CONDUCTIVITY, THERMAL CONDUCTIVITY