Ecological restoration process by using submerged plant as pioneer species

Abstract

The invention relates to an ecological restoration process applicable to urban river polluted waters, and the restoration process adopts a step floating bed as a tool for ecological restoration; plants planted on the step floating bed is distributed stepwise from low to high; intervals between plants are large; the sunlight transmittance is high; and the water purification effect is obvious. According to the invention, clay is prepared by a special method, is palletized, and is filled into a plastic basket; submerged plants are transplanted into the basket; and the basket is embedded into sediment of a floating bed action area. After a period, the submerged plants begin to root, and extend successfully in the sediment; the transplant technology can successfully resist the impact of large tide under difficult conditions such as hard bank slopes and tide. Finally the floating plant zone at a low layer of the step floating bed is removed, which allows the submerged plants to extend gradually to the center of the river and to gradually overspread the whole river polluted area, and thus the ecological restoration of the polluted river is completed.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to an ecological restoration process for submerged plants used as pioneer species in polluted waters of urban canals or tributary rivers. Background technique [0002] Nowadays, urban water canals or tributary rivers are facing huge challenges, such as: the urban area is expanding rapidly, but the sewage facilities and sewage treatment systems cannot keep up with the expansion speed; the sewage and sewage of small transport ships are directly discharged into the river; coastal residents, New residents have weak awareness of environmental and ecological protection, etc., which have caused many rivers to be polluted to varying degrees. The water in the rivers is eutrophic and the water self-purification ability is poor. [0003] In recent years, in the construction of urban green spaces, parks and residential quarters, artificial lakes, landscape ponds and landscape p...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an ecological restoration process for submerged plants as a pioneer species. The present invention solves the problem of submerged plants on hard bank slopes with tidal currents by applying ecological engineering techniques and methods based on the principle of restoration ecology. It is difficult to survive under difficult conditions, so as to solve the problem of water quality pollution in urban sewage waters

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