Researchers studied soil evaporation and the interaction between soil moisture and heat in dry areas. They developed models to accurately estimate soil evaporation, temperature, and moisture content. By considering water vapor transmission and coupling of moisture and heat, they improved the simulation of soil evaporation. The study found that soil evaporation decreases as topsoil dries up, and there is a complex relationship between soil moisture and temperature. Understanding these interactions can help in managing water resources and predicting climate changes in arid regions.