Close-to-nature ecological green restoration method for soil slope in South China

Abstract

The invention discloses a close-to-nature ecological green restoration method for soil slope in South China and belongs to the technical field of soil slope green restoration. According to the 'close-to-nature' theory, through the research on the existing original ecological nature slope in South China, the plant growth and the community structure are analyzed, plant habitat investigation is carried out, indigenous plants like arbor, shrub and herbaceous plants suitable for growth are screen out and matched, and the plant species ratio is determined after further screening by germination tests; with the relatively high competitiveness of the indigenous plants and natural mature soil is used to mix seeds in sowing, slope greening plants can survive and develop more quickly and maintain a long time by ensuring a certain temperature, humidity and fertility to create a better germination environment, later plants do not need human management after seedling formation, and the maintenance cost is low.

Description

technical field [0001] The invention relates to the technical field of slope regreening, in particular to a near-natural ecological regreening method for soil slopes in South China. Background technique [0002] Over the years, due to natural factors such as rock weathering and geological landslides, continuous expansion of urban construction, and resource exploitation, the area of ​​secondary forest slopes with better environments and complete ecological communities has been shrinking, the slope vegetation community has degraded, and the surface exposure has further aggravated. The loss of water and soil creates a vicious circle. In recent years, with the gradual development of the ecological garden industry, people pay more and more attention to slope greening. [0003] South China has superior water and heat conditions and rich plant resources. There are relatively many types of native plants for slope greening, but in actual slope greening projects, the selection of pla...

AI Technical Summary

Problems solved by technology

Among them, the method of transplanting into seedlings is easy to damage the rhizomes, and the plant growth after transplanting needs a certain recovery time, and the wounds on the roots cause the invasion of germs, resulting in a higher morbidity rate, and the transplanting of adult plants is more labor-intensive and will Increase the cost of ecological restoration; and the seed spraying technology is to fully mix plant seeds, fertilizers, water-retaining agents, soil, organic matter, stabilizers, etc., and spray them evenly on the slopes of the project that need protection through a jet machine. Fast, but the maintenance time is often short, the ecological benefit is relatively low, and the engineering cost is high

If we blindly pursue greening speed and greening effect in the greening construction of slope engineering, the vegetation on the bare land will be restored blindly, lacking scientific basis, and the vegetation will multiply and grow by itself after several years, and new problems will appear: weeds will grow on the ground, and some vegetation will begin to grow. degraded, and exposed again; some bare land did not form a fixed ecological niche due to unreasonable plant allocation, causing the mature plants to degenerate rapidly again, affecting the sustainability and stability of the bare land, etc.