Simulation method for removing submerged plant by using filter feeder

Abstract

The invention provides a simulation method for removing a submerged plant by using a filter feeder. The technical key point is characterized in that corbicula fluminea density is an influence factor of the experiments, four groups are set for processing, which are a contrast group, a low density set, a medium density group and a high density group. The density is set by referring natural abundance of Taihu Lake corbicula fluminea, the simulation method comprises steps of deposit preparation, lake river preparation, tape grass preparation, addition in the tape grass experiments and sampling, and the submerged plant in the nutrition water body can be simulated for recovery. The method is capable of promoting the submerged plant growth and has important meaning for ecological recovery of the nutrition water body. The method has the advantages that accurate simulation of the submerged plant can be realized, technology is reliable and easy to operate, cost is low, submerged plant in the nutrition water body can be effectively recovered, and the method can be used for ecological restoration for the eutrophication water body (such as lake and pond).

Description

technical field [0001] The invention relates to the field of new environmental protection technologies, in particular to a simulation method for filter-feeding organisms to restore submerged plants. Background technique [0002] Eutrophication caused by excessive input of nutrients (mainly nitrogen and phosphorus) is one of the most widely concerned water environmental problems in the world. Many important large lakes such as Dianchi Lake, Taihu Lake and Chaohu Lake in my country are also facing environmental problems caused by eutrophication. The increase of nutrient input leads to abnormal increase of planktonic algae, reduction of submerged plants, reduction of biodiversity, serious degradation of ecosystem structure and function, and greatly reduces the service value of water ecosystem. Therefore, the key to eutrophic water body restoration is how to transfer nutrients from planktonic (mainly concentrated in planktonic algae) to bottom layer (submerged plants), so as to...

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Problems solved by technology

Similarly, eutrophic lakes such as Taihu Lake, Chaohu Lake, Dianchi Lake and other eutrophic lakes have also made attempts in this regard. Some large lakes have preliminarily established clear water systems dominated by aquatic plants, but the systems are often unstable, and the reconstructed submerged water plants tend to die easily

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