[Objective] The objective is researching different land improvement material's impactions on the heat transmission of desertification soil in order to maintain soil water and control land deserification.[Methods] Using four different improvement materials(inorganic soil improvement material

integrated soil improvement material

gypseous soil improvement material

high-carbon soil improvement material) mixed with desertification soil in different proportions(5%

7%

9%

11%

12%

respectively). Steady state radiation was presumed as the heat impetus of soil degradation process

temperatures in different soil depths and compositions were measured.[Results] Addition of different materials led to the change of soil thermal conductivity. In the depths of -4~-8 cm

the effects on the thermal conductivity of four materials' addition in different proportion to the soil were:gypseous soil improvement material>inorganic soil improvement material>high-carbon soil improvement material>integrated soil improvement material. The best proportion of adding the integrated soil improvement material to the soil in -4~-8 cm depth was 9%.[Conclusion] Integrated soil improvement material and high-carbon soil improvement material are better modified materials for improving desertification soil.