Ecological restoration method for urban landscape greening river water area

Abstract

The invention discloses an ecological restoration method for an urban landscape greening riverway water area, wherein the method comprises the following steps: cleaning floating objects on the water surface of a riverway, arranging a polyamide net at a water flow inlet, inserting submerged plants into non-woven fabrics to form a plant blanket, sinking the plant blanket into the water bottom, and fixing the plant blanket by adopting stones; crushing corn straws, adding peat soil and perlite, fully grinding, carrying out preliminary thermal cracking and deep thermal cracking, and crushing to obtain pretreated straws; uniformly mixing the pretreated straw and sandy soil, adding polyvinyl alcohol and water, granulating, drying, and sintering at high temperature to obtain a spherical material;uniformly mixing the spherical material, bentonite and coal gangue, adding polymaleic anhydride and polyethylene glycol, uniformly mixing, and granulating to obtain submerged planting soil; evenly laying submerged planting soil on the plant blanket, compacting and then filling with loess, building an underwater small island at the position, close to the bank, of a riverway, and forming environments of various microterrains; and slowly putting water into the riverway, and then putting fries into the riverway.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to an ecological restoration method for urban landscape greening river course waters. Background technique [0002] At present, about 50% of my country's urban landscape green rivers are polluted to varying degrees. Due to the impact of human activities, more and more pollutants enter the water environment. When pollutants accumulate in the water to a certain limit, the water will be damaged. -Aquatic plants-aquatic animal systems cause serious harm and may directly or indirectly affect human health through the food chain. [0003] During the water pollution process of the green river, due to the discharge of various domestic sewage, the self-purification ability of the river is insufficient, the common black and smelly river water, the accumulation of silt in the river, the floating of blue-green algae on the river surface, and serious water eutrophication, etc., chem...

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Problems solved by technology

[0003] During the water pollution process of the green river, due to the discharge of various domestic sewage, the self-purification ability of the river is insufficient, the common black and smelly river water, the accumulation of silt in the river, the floating of blue-green algae on the river surface, and serious water eutrophication, etc., chemical restoration is not only a huge investment but also a temporary solution It does not cure the root cause, and the use of aquatic plants to restore polluted water bodies has a small investment, but the efficiency is low. At present, the research on the restoration of water pollution has always been one of the areas of concern.

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