Ecological retention zone applied to municipal roads

The utility model discloses an ecological retention zone applied to municipal roads. Including a road layer, symmetrical isolation stone plates are fixedly inlaid in the road layer. A stagnant water layer is arranged between the two isolation stone plates; the left side face and the right side face of the stagnant layer are fixedly connected with the side faces, close to each other, of the two isolation stone plates. Wherein the upper surface of the stagnant water layer is fixedly connected with a drainage layer, the upper surface of the drainage layer is fixedly connected with a filter layer,the upper surface of the filter layer is fixedly connected with a sand filter layer, the upper surface of the sand filter layer is fixedly connected with a soil layer, and a vegetation planting layeris arranged above the soil layer. According to the ecological retention belt applied to the municipal road, infiltrated rainwater can be filtered, so that the ecological retention belt has the function of filtering the rainwa