Abstract: In the terrain, a threedimensional coordinate system of static equilibrium atmosphere  ground coupled model was created. The thermodynamic and dynamic process of complex terrain and vegetation was taken into consideration in this model. Compared with other medium and small scale model, the aspect and slope effects are all considered in detail in the establishment of the radiation balance equation and energy balance equations between the surface and the vegetation canopy. The results showed that the atmosphere ground coupled model could better simulate the space distribution trend of meteorological elements of rocky desertification in Zhenfeng county, a typical area of rocky desertification. The temporal change trend of the temperature slightly raised first and then descended as the moderate rocky desertification areas became into strong rocky desertification areas. Then while the strong rocky desertification areas constituted to become super strong rocky desertification areas, the temperature showed a sharply downward trend. 

Key words: Three dimensional system of atmosphere ground coupled model, Rocky desertification areas, Climate effects