Cavity type plant fixing device for high and steep rock slopes and regreening method

Abstract

The invention relates to a cavity type plant fixing device for high and steep rock slopes and a regreening method. The cavity type plant fixing device comprises a high and steep rock slope cavity anda plant fiber container, wherein a sand layer is arranged at the bottom of the high and steep rock slope cavity, the bottom of the plant fiber container is inlaid in the sand layer, a crushed stone layer is arranged at the bottom of the plant fiber container, the top of the crushed stone layer is covered with natural soil, and the top of the natural soil is covered with a nutrient soil layer; andthe natural soil is stuffed between the outer wall of the plant fiber container and the inner wall of the high and steep rock slope cavity. Luffa vegetable sponges made from a natural material are used for fixing herbaceous plants for the container in the high and steep rock slope cavity, and the luffa vegetable sponges are low in porosity, so that the problem of soil loss caused by rainwater andwind can be effectively solved. The luffa vegetable sponges have good water absorption properties, so that moisture can be stored for growth of plants, and the phenomenon of plant withering caused byexcessive drought can be solved. The luffa vegetable sponges can provide a stable carbon source and nutrient substances for growth of the plants in the weathering process, and are environmental-friendly and pollution-free, and smooth succession of an ecological system can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to a hole-type plant fixing device and a regreening method for high and steep rocky slopes. Background technique [0002] High and steep rocky slopes generally refer to rocky slopes with a slope greater than 60 degrees and a height greater than 30m. Because of their large slopes, geological disasters are prone to occur, and difficult restoration has become a difficult problem in slope restoration in the world. At present, the existing restoration schemes mainly include hanging net spraying method, fish scale hole method, vegetation trough method, hole type regreening technology and step type regreening method. [0003] Hanging net spraying method is to use spray mixing equipment to mix soil, organic matter, water retaining agent, adhesive and seeds, etc. and spray them on the rock surface, forming a spray layer on the surface of the rock wall, creating a place that ca...

AI Technical Summary

Problems solved by technology

The disadvantage is that it is necessary to set up as many horizontal steps as possible to meet the platform and soil requirements of vines as wide and as many as possible, and the construction is difficult; the horizontal steps are easily washed by rainwater, resulting in a large amount of soil and nutrient loss

This method is mainly effective for the restoration of horizontal steps, but it is difficult for vertical slopes to be covered and repaired by vegetation, and because the carbon source cannot be replenished, the evolution of the ecosystem is limited

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