Biological recovery of small eutrophic water body

Abstract

A process for restoring the ecological environment of a nutrient-enriched shellow water body features that the pioneer plant for improving the water transparency and the multiple submerged plants are introduced to said water body to create a stereo evergreen aquatic vegetation system, which includes also emerging plant, floating plant, leaf-floating plant and submerged plant. Its advantages are durable and high effect, and low cost.

Description

technical field [0001] The invention relates to an ecological restoration method for eutrophic shallow water and small water bodies, and belongs to the technical field of environmental protection. Background technique [0002] Eutrophication of rivers is a common environmental problem in the world, and eutrophication causes hundreds of millions of economic losses every year in China alone. Traditional governance methods are costly and have limited effectiveness. Many environmental workers focus on the study of eutrophication in large water bodies, but pay little attention to small shallow water bodies or small rivers and ditches. The methods used to treat eutrophic lakes at home and abroad are to control external pollution, limit pollution discharge, put chemicals, divert water for dilution, outflow diffusion, dredging sediment, etc., but these methods are difficult to solve the problem fundamentally. In the heavy nutrient load caused by the high abundance of TN and TP in ...

AI Technical Summary

Problems solved by technology

However, it is easy to create water and difficult to retain water. Efficiently restoring these water bodies from algae type to grass type is the difficulty of current governance.

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