Keyword: «heat and humidity regime»

In this article, using methods for solving inverse problems, we demonstrate the heat flux densities on the surface of frozen soil in pine and larch forests and in violation of vegetation and ground cover. We have studied the influence of forest fires on the thermal and moisture regime of soils in Central Yakutia. During a forest fire, vegetation and the ground cover are destroyed, as a result of which the average annual temperature rises at a depth of 10 m in the range of 1.5–2.0°C and talik zones are formed, which are accompanied by thermal subsidence. In subsequent years, vegetation is restored, and the temperature regime of the active layer goes into a stationary state.

Due to the global warming of the climate in the northern regions, the erosion and deformation of river banks has increased. The article deals with mathematical modeling of the heat and humidity regime of the soil, taking into account the influence of above-frozen, flood and sub-frozen groundwater. In winter, a water-saturated zone forms in the coastal part of the soil, which completely freezes and is accompanied by frost-breaking cracking, and the loose soil is easily eroded by flood water, which enhances the process of thermal abrasion.