Street tree grate
The present invention, comprise a bottom and side supports, in the constant array floor on the roadside protective cover to adjust the water evaporation in the dryer to give a shutter function, and to give it the heat insulating function so as to prevent the trees East in cold weather having a through hole formed in the support frame; Shutter by a control means which is coupled to the corresponding through hole of the support frame so as to open and close the said aperture and; Consists of a panel structure to form the surface of the protective cover is disposed spaced to the upper shutter, the upper panel being vertically slotted holes formed regularly arranged over the entire surface of the panel; characterized by comprising a.