Slope greening spray-seeding substrate and spray-seeding method

Abstract

The invention discloses a side slope greening spray-seeding substrate and a spray-seeding method. Each square meter of the side slope greening spray-seeding substrate comprises the following raw materials by weight: 30-40 g of grass seeds, 5-8 g of a water-retaining agent, 5-8 g of an adhesive and 1-3 kg of straw fibers, and the content of the straw fibers is gradually increased according to the gradient of a side slope. The survival rate of greened grass reaches 90% or above, the average planting density reaches 18 plants / cm < 2 > after planting is conducted for 3 months, the greening effect is good, the problem of side slope water and soil loss can be effectively solved, the content of organic matter is high, the soil pore structure is good, the requirements of turf for nutrients and water can be met, and the green effect is good. The straw fiber material is beneficial to improving the soil bulk density, the soil porosity, the soil moisture constant and the plant characteristic value and has a certain promoting effect on the grass seed coverage, the emergence rate, the biomass, the overground height and the root depth, and therefore all the materials in the straw fiber material are light, efficient, environmentally friendly, good in greening effect and degradable.

Description

technical field [0001] The invention relates to the technical field of ecological protection, in particular to a spraying substrate and a spraying method for slope greening. Background technique [0002] In recent years, with the development of urban construction and industrialization, the excavation of geotechnical engineering has caused serious damage to the slope environment and vegetation, and seriously affected the local ecological environment. Vegetation repair of exposed rock and soil slopes has become an important link in the current geotechnical engineering design and construction. Compared with soil slopes, rock slopes have no soil matrix layer and lack the water and nutrients required by plants; even if there is a weathered layer, on the slopes with large slopes, the surface soil will be lost due to rain erosion. It is difficult to meet the needs of rock slope vegetation protection using conventional soil slope vegetation protection technology. The combination of...

AI Technical Summary

Problems solved by technology

The conventional soil slope vegetation protection technology is difficult to meet the needs of rock slope vegetation protection. The combination of greening foundation stabilization engineering and vegetation engineering is the most basic and reasonable way to restore rock slope vegetation. Spraying refers to the use of Special mechanical equipment mixes soil, organic matter, plant seeds and various additives uniformly in a certain proportion, and uses compressed air or high-pressure water flow as the carrier to spray the mixed material on the surface of the slope to be protected so that it can be quickly established. Stable plant communities to achieve the purpose of ecological environment construction and protection of protecting slopes and restoring vegetation, but the survival rate of the current spraying technology after greening is relatively low, and the coverage rate is low