Method for enhancing heavy metal removal capacity of submerged plants

The invention discloses a method for enhancing heavy metal removal capacity of submerged plants, and belongs to the technical field of environmental ecological engineering. The method comprises the step of planting submerged plants and simulation plants in a water body containing heavy metals in a mixed manner. The heavy metal is one or more of Cu, Pb and Cd, the submerged plant is vallisneria natans, the simulated plant is simulated vallisneria natans, and the planting ratio of the submerged plant to the simulated plant is 1: 1 according to the plant number. In the method, the simulated plant provides a larger attachment area for the microflora and promotes the formation of a biological membrane in the whole environment, the biological membrane plays an important role in controlling the toxicity, migration and transformation, bioavailability and the like of heavy metals in the water environment, and the increase of the biological membrane can improve the adsorption of the plant to toxic substances, so that t