Microbial Matrix Blanket and Installation Method for Slope and Revetment Vegetation Restoration

Abstract

Provided is a microorganism substrate blanket used to restore vegetation on side slopes and revetments. The microorganism substrate blanket is formed by an upper net, a seed layer, a microorganism substrate layer, a water retention layer, and a lower net. The upper net is formed by weaving a natural fiber substance by a special method. The microorganism substrate layer is mainly formed by a function microbial agent, and a slow-release nutritional agent. In the seed layer, vegetation seeds are sprayed and sown on the microorganism substrate layer in conventional proportion. The water retention layer comprises a water-retaining agent, and is formed by natural cellulose as the main raw material. The lower net is formed by weaving zinc-coated wires. The microorganism substrate blanket has good water-retaining and soil-retaining capability and prevents against erosion, and has a manual-maintenance-free function. The microorganism substrate blanket can be widely applied in various side slopes and revetments. Through experiments, after construction installation of 3-5 years, the microorganism substrate blanket still maintains good effect.

Description

technical field [0001] The invention relates to the field of ecological protection slopes, in particular to a microbial matrix blanket used for vegetation restoration of slopes and revetments and a preparation method thereof. Background technique [0002] The use of ecological protection slopes has been recorded since the Middle Ages, but it was not widely used until the middle of the 20th century. At present, foreign developed countries (such as the United States, Germany, France, Japan, Australia, etc.) mostly use physical protection (building structures) Engineering) and biological protection (green planting engineering) combined, and give priority to biological protection. Commonly used techniques include reinforced concrete frame method, plant roll bedding method, fiber greening method, ecological porous concrete greening method and thick-layer substrate spray greening method, etc. At present, Japan is the most advanced country in this kind of technology in the world. ...

AI Technical Summary

Problems solved by technology

[0009] 1) The air permeability of the existing vegetation blanket is poor, which is not conducive to the germination and growth of vegetation seeds; 2) Secondly, some quick-acting fertilizers such as chemical fertilizers are added to the material of the existing vegetation blanket, which can have a certain effect on the growth of vegetation in the short term, but in the long run Look at the quick-acting fertilizer, which has a short period of effectiveness, and long-term use will deteriorate the soil texture and affect the later growth of vegetation

3) After the construction of the existing vegetation blanket, it needs to spend a lot of manpower and material resources for maintenance, such as adding fertilizers to ensure that the vegetation does not lack nutrients, etc.

4) The water-retaining agent (SAP) added to the existing vegetation blanket is generally effective in terms of water-retaining capacity and water-retaining durability

5) Existing vegetation blankets are mainly used on highway and railway slopes, and the application range is relatively small

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