Three-layer step ecological functional belt structure for river channel project

The invention discloses a three-layer step ecological functional belt structure for a river channel project. The three-layer step ecological functional belt structure comprises a three-layer step ecological functional belt; the three-layer step ecological functional belt is composed of a bottom aquatic plant layer, a middle shore lead and a top levee crown road layer; the aquatic plant layer is connected with the shore lead by use of a 0.8-1.2m high vertical wall built with ecological geo-bags; the shore lead is connected with the levee crown road layer by use of ecological interlocking bricks and a turf slope at the gradient of 1: 2 or 1: 3. The three-layer step ecological functional belt structure for the river channel project has the advantages that the renovated river channel is capable of meeting the flood drainage requirement of the surrounding region of the river channel, and also capable of forming a sightseeing leisure shore belt, and due to the great tank storage difference of different water surface elevations, the water surface ratio is increased, the problem of contradiction of flood storage in the surrounding region of the river channel and land acquisition can be solved favorably, the overall slope of the river channel is gentled and the river channel slope can be kept stable.