Method for improving urban landscape water body

Abstract

The invention relates to a method for improving an urban landscape water body. The method comprises: (1) arranging aeration equipment in a target water body, and keeping the dissolved oxygen concentration of the water body at more than 3-4 mg / L; (2) determining the total water amount of the target water body and the contents of nitrogen, phosphorus and chlorophyll a in the target water body; (3) releasing hypophthalmichthys molitrix and crucian into the target water body according to the total water amount and the content of chlorophyll a; (4) after 8-10 months, fishing; and (5) releasing a certain amount of the similar fishes within one month to two months after fishing, and observing the change condition of the water body. According to the invention, the landscape water quality is improved by combining artificial aeration and increase of water body aquatic animal population quantity fishes, and the algae in the water body is reduced by increasing aquatic animal fishes and edible algae, so that the contents of nitrogen and phosphorus in the water body are indirectly reduced, the food chain of the water area ecological system is balanced, and the water quality is improved.

Description

Technical field [0001] The invention relates to the technical field of water body ecological restoration methods, in particular to a method for improving urban landscape water bodies. Background technique [0002] Landscape water generally refers to water bodies used for visual appreciation. It is usually divided into two categories: one is natural water features, such as natural rivers and lakes; the other is artificial water features, such as fountains, artificial lakes, and small rivers flowing through cities. , Are open surface water. With the promotion of my country's ecological city construction, the importance of landscape water has become more and more significant. Landscape water has been integrated into people's lives, and people are paying more and more attention to the construction of communities, gardens, towns, etc. with waterscape as the theme. Urban landscape water has important significance for residents' lives and urban development. The urban landscape water b...

AI Technical Summary

Problems solved by technology

[0003] Most urban landscape water bodies are close to closed static or slow-flowing water bodies. At the same time, they have the characteristics of small water area, easy to be polluted, and low water self-purification ability. In addition, the injection of exogenous pollutants makes the nitrogen and phosphorus nutrients in the water body Accumulation, easy to cause eutrophication of water body

At present, the problem of urban landscape water pollution, especially the problem of eutrophication, is relatively prominent. The problem of landscape water, especially the problem of eutrophication of water body, has become an urgent problem to be solved, which affects the ecology of water body and urban landscape. The water quality of landscape water body is unstable. There will be algal blooms, black and smelly water bodies, breeding of mosquitoes and flies, etc., which will seriously affect the environment of the surrounding areas

[0004] Commonly used methods for landscape water treatment include physical methods, chemical methods, biological methods, and ecological methods, etc., but none of them can fundamentally solve the problem of landscape water, especially the problem of eutrophication of water bodies. Become a new field of sewage treatment