Change of the grass brick surface material’s thermal contribution to surrounding environment after grass degeneration

Grass brick is a frequently used material of urban ground surface. The maintenance of the grass is a big problem after establishment. Whether the degenerated grass brick has different thermal contribution to surrounding environment or not is the key point of the study. Based on the observedone year’ data of 3 frequently-used surface materials including grass brick, degenerated grass brick and concrete brick’s, the annual temperature variations, relevant level of meteorology factors and influence factors of the land surfaces were analyzed; The general linear model was established based on three surface materials and the monthly temperature of the year. The results are as follows: 1)The difference of thermal effects on surrounding environment between grass brick material and degenerated grass brick material is not significant; 2)Both the grass brick and the degeneratedgrass brick material have significant differences with the concrete brick material. 3)The general linear model passed the check and the match accuracy between the surface and the air temperature is high. The surface temperature can be calculated through the model. The coefficient represent the surface temperature’s rising range with the increase of solar radiation.The rank of rising range is as follows: grass brick<degenerated grass brick<concrete brick.