Submerged plant community breeding method based on space-time patch inlaying and replacement

Abstract

The invention discloses a submerged plant community cultivation method based on space-time plaque inlaying and replacement. The method comprises the following steps: performing field investigation on a target water area; determining a target area clearing route in sequence; the submerged plants are removed according to specifications; the cleaning area is surrounded by a surrounding net; preparing submerged plants with time ecological niche separation and various functional characters; carrying out flocculent precipitation to remove suspended matters; manufacturing an embedded submerged plant grass blanket; embedding the submerged plant grass blanket into the purse seine; according to the method, the relative still water environment formed by the high-density submerged plants is utilized, a target plant is removed from the interior of the submerged plants, a certain blank water surface is formed, and then the submerged plant grass blanket with diversified space-time ecological niches is configured, so that the purpose of replacing the target submerged plants in a plaque embedding mode is achieved; stable space-time plaque diversified submerged plant communities can be conveniently built, the purposes of replacing the communities and maintaining clear water quality for a long time are achieved, and the development of an eutrophic water body ecological restoration technology is promoted.

Description

technical field [0001] The invention relates to the technical field of ecological restoration of water environment, in particular to a submerged plant community cultivation method with mosaic replacement of space-time plaques. Background technique [0002] The propagules of submerged plants can survive in the sediment for one to many years. However, during the process of eutrophication, the oligotrophic submerged plant seed bank is buried in the lower layer of the sediment, and the eutrophic type is buried in the surface layer of the sediment. ; [0003] After the exogenous pollution was cut off, the water quality and transparency of many shallow lakes were improved, and the submerged plants were naturally recovered with the help of the seed bank. However, the first recovery was the eutrophic type buried in the surface of the sediment. Most of these submerged plants are canopy types. The plants are tall and the canopy is developed. With the help of the still high water body...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a submerged plant community breeding method with time-space patch mosaic replacement, which can effectively solve the problem that tall canopy-type submerged plants tend to burst out in the above-mentioned background technology and form a high-density single submerged plant community. Decomposition during the period releases a large amount of pollutants, causing algae outbreaks, deteriorating water quality again, and posing a threat to water quality

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