Lakeside wetland aquatics, fishes and benthos water purification system and purification method thereof

Abstract

The invention discloses a lakeside wetland 'aquatics, fishes and benthos' water purification system and a purification method thereof. Aquatics that are selected are Scirpoides holoschoenus and / or Phragmites australis, the fishes that are selected are Hypophthalmichthys molitrix and Aristichthys nobilis, the benthos that are selected are Viviparidae and / or Anodonta. Compared with the prior art, the invention has the advantages that the aquatic ecological system with multiple biological chains is scientifically and reasonably established in full accordance with the ecologic principles and main ecological characteristics of aquatics, and the absorption and utilization of nutrient salt in water by the aquatics, fishes and benthos in the system enables the water space to be fully utilized, aquatic resources to be more diversified, water pollution to be eliminated, water quality to be improved and water eutrophication to be lessened, and the situation that the current researches performs or utilizes the single water treatment means mainly for certain aspect of the law of water body self-purification, resulting in poor water purification effect, is changed.

Description

technical field [0001] The invention belongs to the technical field of water area ecological protection, and in particular relates to a water quality purification system and a purification method of "aquatic plants-fish-benthic organisms" in lakeside wetlands. Background technique [0002] There are many lakes in our country, and the country has a total of lkm 2 There are 2,759 lakes above, with a total area of ​​91,019km 2 , accounting for 0.95% of the country's land area. In recent years, due to population growth, rapid industrialization, urbanization and modern agriculture, a large number of nutrients (N, P, etc.) and organic matter have been discharged into lakes, resulting in excessive reproduction of algae and other aquatic organisms, decreased dissolved oxygen, and decreased transparency. Water quality deteriorated rapidly. The occurrence of lake eutrophication leads to the degradation of the structure and function of the lake ecosystem, frequent outbreaks of cyano...

AI Technical Summary

Problems solved by technology

[0003] Due to the complex process of self-purification of water bodies and the influence of various factors, it is a very complicated subject to study the ecological purification technology of lake waters. Most of the current research is carried out on a certain aspect of the law of self-purification of water bodies, using a single water quality treatment method

Technical measures including the restoration of aquatic plants, biological manipulation of fishery organisms, and construction of artificial wetlands have been mainly adopted to improve the water ecological environment of the lakeside wetlands. More perfect technology and model

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