Method for constructing wetland type river channel

Abstract

The invention relates to a method for constructing a wetland type river channel. A natural gentle slope type retaining wall is constructed in a land directional area from the position above a normal water line to the top of a protection slope by using soil engineering materials, tree and shrub vegetation is planted, emergent aquatic plants are respectively planted in a bottomland area and a shallow water area of the river channel, floating-leaved plants and submerged plants are planted adjacent to the emergent aquatic plant area, and the transverse width of the planting area on each side is equal to or smaller than one fourth the width of the water area of the river channel. According to the method for constructing the wetland type river channel, the foundation with the novel soil engineering materials, the biological protection slope provided with the novel soil engineering materials as the foundation and covered by the tree and shrub vegetation, a bottomland wetland with emergent aquatic plant community as the main body and a bank zone with the floating-leaved plant and submerged plant communities as the main body are constructed respectively on the wetland type river channel, and a river channel biological system with the complete structure and function is formed. The method for constructing the wetland type river channel is capable of obviously improving river water quality, good river channel landscape can be created, and the living quality of city residents can be improved.

Description

technical field

[0001] The invention belongs to the field of ecological engineering, and in particular relates to a method for constructing a wetland-type river course. Background technique

[0002] River channels are an important part of urban infrastructure and the foundation of urban development. As an area with rich ecological functions and natural landscapes in the city, river courses have been recognized and valued more and more by people in recent years for their landscape, leisure and ecological functions. The planning of river courses and riverside areas has been incorporated into an important part of urban ecological construction. However, due to historical reasons, the traditional construction of urban rivers is mostly based on flood control and drainage as the main principle, and the rivers are cut, straightened and channelized, which makes the shape of the river simplistic and the river landscape is seriously lacking. Among them, the lining of riverbeds and riv...