MOISTURE CONDENSATION IN MOLE PASSAGES IN SUMMER

The processes of heat and moisture transfer in mole plowed undersoil are modeled taking into account the phase transitions of water and steam. The annual and daily temperature fl uctuations over the depth of the soil layer and ground have been studied. Estimates of moisture condensation onto the inner surface of the soil and mole passage are proposed. The velocities of atmospheric air movement in mole passages and its fl ow rates in laminar and turbulent modes of fl ow are determined. Moisture condensation from the soil air into the root layer at night and in the morning was found. It has been established that under natural conditions the mass of the condensate fallen in mole passages is insuffi cient to signifi cantly increase the moisture content of soil, but the presence of mole passages in the soil has a positive eff ect on its productivity. It is shown that the use of such passages in semideserts improves the feeding of saigas and other wild animals
The processes of heat and moisture transfer in mole plowed undersoil are modeled taking into account the phase transitions of water and steam. The annual and daily temperature fl uctuations over the depth of the soil layer and ground have been studied. Estimates of moisture condensation onto the inner surface of the soil and mole passage are proposed. The velocities of atmospheric air movement in mole passages and its fl ow rates in laminar and turbulent modes of fl ow are determined. Moisture condensation from the soil air into the root layer at night and in the morning was found. It has been established that under natural conditions the mass of the condensate fallen in mole passages is insuffi cient to signifi cantly increase the moisture content of soil, but the presence of mole passages in the soil has a positive eff ect on its productivity. It is shown that the use of such passages in semideserts improves the feeding of saigas and other wild animals
Author:  M. G. Alishaev
Keywords:  soil, moisture, evaporation, condensation, temperature, transfer, mole passages, crop-producing power
Page:  1565