Spray-seeding substrate for ecological reafforestation of high and steep side slopes, preparation method for spray-seeding substrate and application of spray-seeding substrate

Abstract

The invention relates to the technical field of side slope treatment and discloses a spray-seeding substrate for ecological reafforestation of high and steep side slopes, a preparation method for the spray-seeding substrate and an application of the spray-seeding substrate. The spray-seeding substrate contains the following raw materials in parts by weight: 330-420 parts of planting soil, 20-30 parts of peat soil, 1.5-5 parts of organic fertilizer, 1-3 parts of grass fibers, 1-3 parts of wood sawdust, 0.03-0.05 part of water retention agent, 0.02-0.04 part of binder, 0.1-0.5 part of inorganic fertilizer, 0.5-2 parts of pH regulator, 30-44 parts of seed mixture and 150-200 parts of water, wherein the seed mixture is prepared from the following plant seeds in parts by weight: 10-12 parts of rhizome-type festuca arundinacea, 2-4 parts of Trifolium repens, 3-5 parts of Medicago sativa, 2-3 parts of bermuda grass, 2.5-4 parts of Indigofera pseudotinctoria, 4-6 parts of magnolia multiflora, 3-5 parts of cassia corymbosa, 2-3 parts of amorpha fruticosa and 1-2 parts of cosmos bipinnatus. Through carrying out spray-seeding by using the substrate disclosed by the invention, an imported-soil base course with the strength of 0.25MPa or more can be formed, the rainfall erosion resistance after 45-day plain forming is not lower than 120mm/h, and a shrub-dominated and grass-shrub-combined ecological plant community with the rainfall erosion resistance not lower than 200mm/h is formed in half a year to a year.

Description

technical field [0001] The invention belongs to the technical fields of slope treatment, mine restoration, and water and soil conservation, and in particular relates to a high and steep slope ecological regreening spray-seeding base material and a preparation method and application thereof. Background technique [0002] Since my country's reform and opening up, urban and transportation construction has continued to develop. Mining, especially open-pit mining of building stones, is extremely common in the south. While providing necessary materials for economic and urban construction, it also brings great impact to the environment. Large damage, due to blasting and digging ore at the bottom, the slope of the mine is steep and uneven, and the exposed slope is dominated by rocky slopes, which makes it difficult for plants to grow and repair naturally. Artificial measures must be used to transform and create plant growth In order to restore the slope vegetation and improve its ecol...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to aim at the fact that the herbaceous plants grow well and the woody plants are small or not long after using the spray-mixed planting technology to carry out slope greening in the current high and steep slope treatment process. Mainly, the slope is not resistant to rain