A cage-type nearshore wetland construction method for hard revetment channels

Abstract

The invention discloses a construction method of a cage type offshore wetland for rigid revetment river channels, comprising: selecting a plurality of sites a river bank of a rigid revetment river channel, horizontally setting fixing piles at the sites from the river band toward the inside of the river channel, setting fixing plates at the sides of the fixing posts close to the river channel, providing an opening in the side of each stone cage close to the river band, locking the fixing plates into the openings to movably mount the stone cages on the fixing piles while the stone cages can move up and down relative to the fixing piles, placing stone chunks at the side of the stone cages close to the river channel while stacking height of the stone chunks is less than the height of the stone cages, placing water-purifying filling material at riverside ends of the stone cages, and planting plants in the filling material to construct the cage type offshore wetland. The cage type offshore wetland has the advantages that the structure is simple, the water purifying effect is good, a slope can be secured and protected, a riverside buffer strip may be formed, river band stability is maintained, water treatment burden is relieved, inhabiting space is provided for organisms, and biodiversity is improved.

Description

technical field [0001] The invention relates to the field of river channel water environment treatment and ecological restoration, in particular to a cage-type nearshore wetland construction method for hard revetment river channels. Background technique [0002] As an important part of the river, the river bank is the link between the water ecosystem and the terrestrial ecosystem, the link between the river's water-land ecotone and the riparian zone, the active functional area of ​​the geochemical element cycle, and the dynamic exchange process between surface water and groundwater. Carrier. Changes in riparian ecosystems play the role of corridors, filters, and natural barriers for material, energy, and biological flows between land and water ecosystems. Since the founding of the People's Republic of my country, many reservoirs, dams, and dikes have been built on large, medium, and small rivers, and a series of engineering measures such as lining, revetment, dangerous work...

AI Technical Summary

Problems solved by technology

But so far, the construction of most constructed wetland systems is not mature enough, and compared with foreign countries, my country's river ecological restoration often neglects the restoration of the structure and function of the river ecosystem and the restoration of the river bank, and the damage to the damaged river bank vegetation and Restoration of wetland communities receives little attention

The living space and environment of plants, soil animals and microorganisms are not considered in the design of traditional masonry and other concrete riverbank projects

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