Method for controlling blue-algae bloom outbreak of urban landscape water

Abstract

The invention relates to a method for controlling blue-algae bloom outbreak of urban landscape water. The method comprises the following steps: for revetment and lake bottom hardened urban landscape water, building a hardened planting pool at a river bank, and planting emergent plants; planting submerged plants in a flowerpot, and sinking the flowerpot to the bottom of the water; and planting floating-leaved plants in the flowerpot, and placing on the bottom of the water. By planting the aquatic plants and ensuring the planting area and biomass of the aquatic plants, the excessive growth and breeding of algae in the water are inhibited, and the blue-algae bloom can be inhibited and eliminated. When the blue-algae bloom outbreak is effectively controlled, the clear state of the water can be maintained, the landscape effect of the water is improved, a good living space and habitat can be provided for bottom inhabiting organisms, a high-density zooplankton colony is formed, and the biological diversity is improved. The potted aquatic plants are easy to replace and manage, and the method has the advantages of simplicity in operation and maintenance, low investment and low energy consumption.

Description

technical field [0001] The invention relates to the technical field of ecological engineering, in particular to a method for controlling the outbreak of cyanobacteria blooms in water bodies of urban landscapes by using aquatic plant blending. Background technique [0002] Due to the problem of eutrophication, urban landscape water bodies are often polluted by cyanobacteria blooms, resulting in a drop in dissolved oxygen in the water body, death of fish and shrimp, and stench in the water, seriously affecting the water ecological function and landscape effect of the water body. The fundamental solution to cyanobacterial blooms is to improve the water quality and water ecological environment system of landscape water bodies. With the strengthening of environmental pollution control, the water quality of water bodies has been improved, and many urban landscape water bodies can meet the water quality requirements of Class IV–V in the "Environmental Quality Standards for Surface ...

AI Technical Summary

Problems solved by technology

On the other hand, urban landscape water bodies, especially in most water-deficient areas in the north, are facing the plight of water shortage. In order to prevent water leakage in landscape water bodies and reduce ecological water consumption, the pool walls and lake bottoms of many landscape water bodies are used as Hardening and anti-seepage treatment are required, which makes the water ecological environment of the landscape water body significantly different from that of natural lakes. The thickness of the bottom mud is small, which is not enough to provide soil for the growth of aquatic plants, and aquatic plants cannot be directly planted and grown like natural lakes.

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