Abstract:As our environmental awareness strengthened and living standard improved, demand for green parking lots and lawn roadside is enhancing. But the increasing acrea ge of buildings, dams and roads conflicts with the development of lawn in modern cities. In order to settle this contradiction, making full use of lawn bricks b ecomes necessary. Based on the fact that the optimal ratio of fly ash and soil a s lawn medium has been found, this experiment probes into the fertilizing and bi ological effects of lawn bri...