The invention belongs to the technical field of
environmental engineering, and discloses a multi-stage purification
landscape structure along a river slope and a construction method. The multi-stage purification
landscape structure along the river slope is provided with a first-stage
filtration layer, a second-stage
filtration layer and a third-stage
filtration layer; the inner side of the first-stage filtration layer is filled with a gravel layer, a permeable
brick layer is laid at the upper side of the gravel layer, the second-stage filtration layer is located at the downstream of the first-stage filtration layer, a
greening groove is built in the surface of the second-stage filtration layer, and a main sculpture is built at the side face of the
greening groove; the third-stage filtration layer is located at the downstream of the second-stage filtration layer, and plants having higher
absorption capacity for
nitrogen and
phosphorus are planted on the surface of the third-stage filtration layer. The multi-stage purification
landscape structure along the river slope has the advantages that the gravel layer of the first-stage filtration layer can filter and block polluted particlesin the
water flow, so that the influence on the filtration effect of the filtration
layers at the downstream is avoided; the multi-stage slope filters the
water flow of the river way, so that the
pollution source of the slope can be sufficiently purified, the pollutants in the rainwater are removed, and unpurified water is prevented from entering the river way.