Ecological method used for river channel and lakes control

Abstract

The invention discloses an ecological method used for river channel and lakes control, In order to achieve the purposes, the ecological method comprises a plurality of monomers made of the nitrogen and phosphorus absorption materials and a single medium monomer in sphere-shaped and quadrate-shaped surrounded from the plastic blueness and the gabion; and pore canals are provided in each monomer.

Description

technical field [0001] The invention relates to an ecological method suitable for harnessing river courses and lakes, which belongs to the field of ecological environment engineering, and in particular relates to biological restoration and ecological restoration of river courses and lakes. Background technique [0002] With the development of the economy and the increase of the population, a large amount of sewage without effective treatment has made the problem of water pollution in China more and more serious. At present, my country's urban water environment pollution is mainly reflected in the black, odorous or eutrophic water bodies of rivers and lakes, and most of the treatment technologies use engineering methods such as sewage interception, revetment, and dredging. Due to the existence of non-point source pollution and endogenous pollution in urban rivers and lakes, engineering methods It is impossible to completely solve the problem of black, smelly or eutrophication ...

AI Technical Summary

Problems solved by technology

However, most urban river (lake) revetments in my country mainly consider their functions of flood storage, flood discharge and flood discharge. Reinforced concrete structures or concrete block linings are used for slope protection, which blocks the ecological connection of water and soil, resulting in bare river banks and the inability of aquatic plants to grow. ; There is no porous structure in the river bank, and micro-animals, fish, insects, etc. cannot inhabit and reproduce; the concrete revetment is exposed to direct sunlight, and the surface temperature is higher than the actual temperature, especially the slope revetment makes the water layer on both sides of the river thin, which aggravates the rise in water temperature , is conducive to the growth and reproduction of algae, and is prone to "water blooms"; and the concrete revetment is monotonous in color, single in structure, and poor in landscape effect

The above reasons lead to poor biodiversity of urban rivers (lakes), reduced self-purification capacity, and fragile ecosystems. Once a small amount of sewage is discharged, it may cause eutrophication or even black and odorous water bodies in rivers and lakes.

Although some people have made some improvements to the concrete revetment, the concrete medium has no large pores, which is not conducive to the habitat and reproduction of birds and fish; it still cannot meet the needs of ecological restoration of rivers and lakes

Furthermore, if the existing concrete slope protection is changed into an ecological concrete slope protection, the original slope protection must be completely smashed and removed. The construction is difficult and the cost is high, which is not conducive to the promotion of ecological slope protection transformation technology.