Ecological-floating-bed-based water body ecological restoration method

Abstract

The invention relates to an ecological-floating-bed-based water body ecological restoration method which comprises the following steps: 1) establishing an ecological floating bed, adding biological activated carbon into each growing basket, and suspending rope-shaped carbon fiber ecological grass on the bottom of the floating bed; 2) growing emerging plants in a first aquatic plant growing region, wherein the emerging plants are composed of more than two of Canna generalis, Thalia dealbata, Iris wilsonii, calamus, purple loosestrife, bamboo reed, reed, cyperus altrnlifolius and Pontederia corda; growing a floating leaf plant or submerged plant in a second aquatic plant growing region, wherein the floating leaf plant is Ludwigia stipulacea, and the submerged plant is watermilfoil; and 3) reaping: carrying out periodical reaping according to the growth condition of the aquatic plants. The multiple ornamental plants and plant species with higher synergic decontamination capacity are reasonably blended and grown to establish a stable floating bed phytocommunity, thereby enhancing the synergistic actions among organisms, enhancing the restorability of the ecological floating bed for the water ecological environment, effectively enhancing the purifying effect of the ecological floating bed, and having stabler purifying effects.

Description

technical field [0001] The invention relates to a water body restoration method, in particular to a water body ecological restoration method based on an ecological floating bed. Background technique [0002] With the rapid increase of population, the rapid development of industry and agriculture, and the acceleration of urbanization, the increase of water pollutants and the impact of production and living sewage, my country's surface water environment has been seriously polluted, and the quality of water supply environment, water ecological safety and drinking water safety Water resources protection, water pollution control and water ecological restoration of urban inland rivers and related rivers are imminent. [0003] Ecological floating bed technology is a new type of water in-situ restoration technology developed by utilizing the restoration effect of aquatic plants. It is characterized by no need to occupy land, low cost and good restoration effect, and has a certain rol...

AI Technical Summary

Problems solved by technology

[0005] 2. It is difficult to take into account the two functions of landscape and ecology in the plant configuration of ecological floating beds. Some floating beds focus on ornamental features, while ecological features such as water purification are not considered; the other part of the floating beds focuses on ecological restoration functions, but the floating bed carrier will be exposed. The environment is very uncoordinated and lacks aesthetic landscape value

At present, the frame of the most commonly used frame floating bed is made of PVC pipes, tees, and elbows. The cost is high, the adjustability is poor, and it cannot meet the requirements of differentiated projects. The overall launch is difficult in construction and consumes a lot of manpower and material resources.

Most of the floating bed base materials currently used are sheet-shaped foam boards, so that the coverage of the floating bed on the water surface is often greater than the coverage of the carrier plant itself. Although it has a certain effect on shading algae, it is not conducive to the submersion of the floating bed plant survival, reducing biodiversity

At the same time, because the plants are directly planted on the base pad, the plants cannot be replaced as needed, and the foam board is easily broken, which is likely to cause secondary pollution

In addition, most of the traditional floating beds for planting plants on the water surface are bulky. One component contains many small planting holes, and the connection method is complicated. Tools are needed to connect each component; there is no planting basket, which makes the growth of plant roots disordered and easily entangled. It is inconvenient to move and trim or clean up

Common plant planting baskets currently on the market are generally round or square in the top view and trapezoidal in the side view. When planting aquatic plants, it is necessary to fill the basket with other fillers such as sponge or ceramsite to fix the plants. The construction has increased the difficulty. These fillings occupy the space for the growth of plant tillers in the later stage, and are easy to scatter into the water body and constitute pollution.

[0007] 4. At present, the research and development and application of floating bed technology mainly focus on the construction of ecological floating beds, while ignoring the operation and maintenance of ecological floating bed projects after implementation

In order to avoid the decomposition and decay of aquatic plant residues, consume dissolved oxygen in water, and cause secondary pollution of water bodies, it is necessary to harvest them in time. How to maintain floating beds and plant harvesting is the key problem that floating bed technology needs to solve in practical engineering applications.

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