Treatment method for water ecosystem of eutrophic water body

Abstract

The invention discloses a treatment method for a water ecosystem of a eutrophic water body. The treatment method comprises the following steps: 1) removal of fishes; 2) addition of a silicate composite aqueous solution; 3) planting of a variety of emergent aquatic plants in a target water area; 4) planting of a variety of floating-leaved plants in the target water area; 5) construction of a submerged plant community in the target water area; 6) fish population structure preliminary construction engineering: a step of stocking fish species for controlling algae and trash fishes in the target water area; 7) selection of benthonic animals for the target water area, wherein the benthonic animals are manually put on the water surface of the target water area; 8) putting of herbivorous control fishes to realize basic control of the submerged plants; and 9) putting of siniperca chuatsi and / or culter alburnus. The treatment method provided by the invention has small investment, fast action andlong-acting working basis, does not pollute the environment, is environmentally friendly, can be used for a long time, is wide in application range, can be applied to ponds, lakes, landscape water bodies, reservoirs and the like, and is not limited by water areas.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a treatment method for water ecosystems of eutrophic water bodies. It is suitable for ponds, lakes, rivers, reservoirs and other water bodies in cities and villages threatened by eutrophication. Background technique [0002] In recent years, due to the rapid development of social economy and the increasing intensity of man-made activities to transform nature, the problem of eutrophication of lakes in my country has become increasingly serious, resulting in difficulties in the industrial, agricultural and domestic water use in many areas along the lakes, seriously affecting economic development and social stability. . [0003] Eutrophication is a phenomenon that describes the deterioration of the water environment caused by the abnormal value increase of some phytoplankton in the water body due to excess nutrients. Its original meaning refers to a long-term irreve...

AI Technical Summary

Problems solved by technology

[0015] In general, the above ecological measures have played a significant role in the prevention and control of eutrophication in water bodies. However, eutrophication in water bodies often results in excessive algae reproduction, an anaerobic environment in the substrate, and a large reduction in aquatic animals, which seriously affects water supply and weakens the value of the landscape. The complexity of the water ecosystem leads to different effects of the final ecological restoration measures