Method for restoring degraded riparian zone through imitated vegetation

Abstract

The invention discloses a method for restoring a degraded riparian zone through imitated vegetation. The method comprises the steps that biological materials are used for imitating roots, stems and leaves of vegetation, and the imitated vegetation is obtained and prepared from polyolefin materials; the stems are partially and vertically inserted into soil, the imitated leaves are fixed to the tops of the stems, the imitated vegetation is formed, the stems are hollow, the surfaces of the stems are provided with a large number of small breathable holes, the oxygen content of soil is increased, an aerobic environment is provided for microorganisms, pollutants are purified, a small cover is arranged above the small breathable holes to prevent rainwater and soil from entering the small breathable holes, and blockage is avoided. The method has the advantages that pollutants diffused to rivers are reduced, and the ecological environment of the riparian zone is restored; water and soil are preserved, bank fixation and slope protection are achieved, and water and soil loss is prevented; the method is not affected by seasons, time and plant production periods and wide in application range; the soil of the riparian zone which is unsuitable for vegetation growth and seriously polluted is restored, and therefore ecological restoration can be conveniently carried out on follow-up planted vegetation. The imitated vegetation is low in cost, easy to manufacture and convenient to install and has an aesthetic value.

Description

technical field [0001] The invention relates to a method for repairing polluted soil in a degraded riparian zone, in particular to a method for repairing a degraded riparian zone by using bionic plants. It purifies heavily polluted soil in a riparian zone based on bionic plants, and consolidates banks and protects slopes. Background technique [0002] The riparian zone is an important channel for material exchange and energy circulation. The degradation of the riparian zone is likely to cause vegetation damage, decrease in biodiversity, erosion of the riverbed and riparian zone, and frequent floods. Pollutants in the riparian zone can easily migrate and spread into the river water, expanding the scope of pollution and affecting human health through the food chain. [0003] Currently, riparian soil restoration methods mainly include physical restoration, chemical restoration, and biological restoration. These technologies are both theoretically and technically feasible. Ph...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many ways to repair soil, but few use bionic plants for repair.

Such as ZL201410001839.7 announced the in-situ self-sustaining repair device for contaminated soil based on plant bionics, which removes pollutants in soil by simulating plant capillarity and transpiration, but does not use microorganisms to degrade pollutants, and there is no bank fixation specifically for riparian soil Slope protection function

For example, an ecological revetment and its construction method announced in ZL201610008443.4 is mainly to purify and restore nitrogen and phosphorus pollution in water, and its ability to purify and repair soil is very limited; as announced in ZL201610841657.X, it is suitable for the characteristics of mountainous rivers. The ecological restoration device and method of the riparian zone mainly rely on plants for purification, which are limited by plant growth cycles and seasons, and it is difficult for plants to survive in heavily polluted soil

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