THEORETICAL MODEL OF DESERTIFICATION PROCESS

In the given article the attempt of desertification process' particular theoretical model design is considered, in which main physical mechanism -soil' active layer drying off and its step by step structural changes, is presented. The abovementioned process is reflected in soil physical parameters (density, specific heat capacity, transfer soil heat conductivity coefficient) which in case of desertification become dependent upon the temperature, however heat transfer mechanism in the soil gets a non-linear nature, as a result of which strong heat accumulation and growth of temperature in time are observed in the active soil layer. Indicated process, representing the "Greenhouse Effect", continues until arid soil structure gets quite a new appearance, with new physical parameters. By this way it is possible to get the analytical solution of non-linear heat conductivity' equation, characterizing the desertification process.