Matrix material for recovering slope vegetation in high-altitude area as well as use method and application of matrix material

Abstract

The invention belongs to the technical field of side slope ecological protection, and particularly relates to a matrix material for recovering side slope vegetation in a high-altitude area and a using method and application of the matrix material for recovering the side slope vegetation in the high-altitude area. The soil conditioner comprises the following components in parts by weight: 2-4 parts of modified emulsified asphalt, 1-3 parts of a biological magnetized fertilizer, 300-400 parts of soil, 40-70 parts of an environment mineral raw material mixture, 20-30 parts of a biological carbonaceous organic matrix mixture, 20-30 parts of plant seeds and 20-30 parts of water. According to the matrix material for recovering the slope vegetation in the high-altitude area, the vegetation of the slope in the high-altitude area is recovered through the nano material and the biological fertilizer, so that the ecological protection effect of the slope is achieved, the fragile ecological environment is not further damaged, and the ecological environment is protected; and the problem that the heavy metal content of soil is increased due to human engineering activities can also be improved.

Description

Technical Field

[0001] The present application belongs to the technical field of slope ecological protection, and specifically relates to a matrix material for restoring slope vegetation in high-altitude areas, and a method for using and applying the matrix material. Background Art

[0002] my country's high-altitude areas have carried out large-scale infrastructure construction, industrial layout optimization and technological innovation. The transportation networks such as railways, highways, and aviation in high-altitude areas have been continuously improved, and resource-based industries such as energy, agriculture, and tourism have also developed rapidly. These measures have effectively promoted economic growth in the western region and improved the living standards of local residents. However, in the process of human engineering activities, a large number of slopes need to be excavated. The excavation of slopes destroys the already very fragile vegetation cover layer, produces a large amount of secondary bare land and soil erosion, causes serious ecological and environmental imbalance, and leads to frequent landslides, collapses, and mud-rock flows, causing huge losses to people's lives and property.

[0003] Traditional slope protection technologies include dry block stone slope protection, mortar-laid stone slope protection, cement mortar surface slope protection, and mesh anchor spraying slope protection. These slope protection technologies have excellent stability and anti-erosion properties in the early stage of slope construction, but with the weathering of rocks and concrete and the corrosion of steel bars, the slope strength will gradually decrease, or the effect will become worse and worse, and the vegetation restoration effect of these slopes is not good, which not only affects the appearance, but also is not conducive to ecological protection. With the development of slope protection technology and people's attention to ecological protection, ecological slope protection technology has begun to be applied to slope engineering protection in recent years. Slope protection technology achieves anti-scouring, anti-deformation, anti-instability, reinforcement and ecological restoration of the slope through the self-support, self-organization and self-repair functions of the ecological engineering system, thereby achieving the purpose of reducing soil erosion, maintaining ecological diversity and balance, and beautifying the environment. The existing ecological slope protection substrates in high-altitude areas have a general vegetation restoration effect, and the ingredients contain a large amount of cement, synthetic fibers, additives and other ingredients. For example, the prior art CN103510488B discloses an antifreeze ecological slope protection substrate containing cement and concrete greening additives, and the prior art CN104878765A discloses a multifunctional combined ecological slope protection substrate containing cement, polypropylene fiber, and fertilizers such as superphosphate. These slope protection substrates are not suitable for high-altitude areas with harsh climatic conditions, poor soil, and simple ecosystems. The use of synthetic fibers and fertilizers may even cause further damage to the already fragile ecological environment.

[0004] Therefore, a new matrix material is needed to complete the vegetation restoration of the slope without causing further damage to the ecological environment in high-altitude areas. Summary of the invention

[0005] The problem that this application aims to solve is to provide a matrix material for restoring vegetation on slopes in high-altitude areas. By using nanomaterials and biofertilizers, vegetation restoration is carried out on slopes in high-altitude areas, thereby achieving the ecological protection effect of the slopes. Not only will it not cause further damage to the fragile ecological environment, but it can also improve the problem of increased heavy metal content in the soil caused by human engineering activities.

[0006] In order to solve the above technical problems, this application adopts the following technical solutions:

[0007] On the one hand, the present application provides a matrix material for restoring slope vegetation in high altitude areas, comprising, by weight:

[0008]

[0009] In the above technical scheme, modified emulsified asphalt can improve soil structural stability, improve soil water and heat conditions in high-altitude areas, increase fertilizer utilization, and enhance crop resistance, and has excellent environmental sustainability; biomagnetic fertilizer can improve fertilizer utilization, improve soil structure and properties, and has excellent environmental protection and sustainability; adding soil can increase the fertility of poor high-altitude soil and improve the soil's microbial environment; environmental mineral raw material mixtures can further improve soil fertility, regulate soil pH, promote plant growth, and reduce fertilizer usage , improve resource utilization; the biological carbonaceous organic matrix mixture can further improve soil structure, regulate soil pH, improve soil low-temperature buffering under high-altitude conditions, and increase the content of soil organic matter, improve soil fertility, and thus reduce dependence on fertilizers; adding plant seeds can artificially control the types and quantities of plants, thereby forming vegetation cover on the slopes more quickly, and using the reinforcement effect of plant roots on the soil to improve the shear strength of the soil, and through rainfall throttling, weakening splash erosion and inhibiting surface runoff, it can prevent slope soil erosion and improve slope soil stability.

[0010] In some embodiments, the components of the biomagnetic fertilizer include silicate, minerals, organic matter, Trichoderma pseudokoningii and Bacillus subtilis.

[0011] In some examples, the biomagnetic fertilizer is Wanrun biomagnetic fertilizer.

[0012] In the above technical scheme, the composition of the biomagnetic fertilizer is limited, which can ensure that the matrix material has a stable slope vegetation restoration effect in high-altitude areas. Among them, Trichoderma pseudokoningii and Bacillus subtilis are widely distributed in high-altitude areas, and also have good biological activity in high-altitude areas with low temperature and low pressure, and will not cause damage to the ecological environment.

[0013] In some embodiments, the soil comprises sandy loam with a clay content of about 40%.

[0014] In the above technical solution, limiting the composition of the soil can ensure that the matrix material has suitable soil properties and has wide applicability to a variety of plants.

[0015] In some embodiments, the ambient mineral raw material mixture includes bentonite, diatomaceous earth, vermiculite, and apatite.

[0016] In the above technical scheme, bentonite can absorb and retain moisture in the soil, improve the structure and permeability of the soil, regulate the acidity and alkalinity of the soil, and inhibit soil diseases and insect pests in a high-altitude environment with insufficient water; diatomaceous earth has porosity and a large specific surface area, which can increase the water retention capacity and nutrient retention capacity of the soil, and the rich trace elements and minerals therein can also serve as a natural plant nutrient to promote plant growth and enhance plant disease resistance; vermiculite has good cation exchange and adsorption properties, which can improve soil structure, store water and retain moisture, increase soil permeability and water content, and increase soil pH, and can also provide plants with K, Mg, Ca, Fe and trace amounts of Mn, Cu, Zn and other elements; apatite can provide plants with the phosphorus element required for growth, improve soil fertility, and create a good soil environment for plant growth.

[0017] In some embodiments, the biochar organic matrix includes at least one of wood charcoal, straw charcoal, and animal manure charcoal.

[0018] In the above technical scheme, wood charcoal can enhance the permeability and air permeability of the soil, improve the low-temperature buffering capacity of the soil under high-altitude conditions, and also help the growth of new plant roots; straw charcoal has a rich pore structure and a high specific surface area, which can significantly reduce the bulk density of the soil, improve the water and air conditions of the soil, and has good adsorption capacity, which helps to reduce the loss of nutrients in the soil; the use of animal manure charcoal can not only solve the problem of manure accumulation of cattle, horses, sheep and other livestock and poultry in high-altitude areas, but also provide a large amount of organic fertilizer for the soil and improve soil fertility.

[0019] In some embodiments, the variety of the plant seeds includes at least one of Rhododendron australis, Elymus sibiricus, Elymus dahliae, Lolium perenne, Caragana microphylla and Potentilla fruticosa.

[0020] In the above technical scheme, plant seeds from high-altitude areas are used, which can ensure the survival rate of plants and prevent other species from invading or destroying the fragile ecological environment in high-altitude areas.

[0021] In some embodiments, the ratio of the bentonite, the diatomaceous earth, the vermiculite and the apatite is 2:1:4:1 to 6:1:6:1.

[0022] In the above technical solution, limiting the proportions of bentonite, diatomaceous earth, vermiculite and apatite can ensure that the soil has fertility, pH, air permeability and water permeability suitable for the growth of plant seeds.

[0023] In some embodiments, the method for preparing the modified emulsified asphalt includes: adding nanomaterials to emulsified asphalt, heating and first stirring to obtain the modified emulsified asphalt.

[0024] In the above technical scheme, the emulsified asphalt is modified by using nanomaterials, which can utilize the extremely high specific surface area and surfactants of the nanomaterials to make the emulsified asphalt more effectively combine with soil particles, further improve the soil's structural stability, water and fertilizer retention capacity, and water and heat regulation capacity, and can adsorb and fix heavy metal ions in the soil, reducing the mobility and bioavailability of heavy metals.

[0025] In some embodiments, the emulsified asphalt includes agricultural emulsified asphalt.

[0026] In the above technical solution, agricultural emulsified asphalt does not contain any components that are polluting and harmful to the soil and plants, and can avoid damaging the soil in high-altitude areas.

[0027] In some embodiments, the nanomaterial includes one of nano calcium carbonate, nano silicon powder and nano metal composite material.

[0028] In the above technical solution, limiting the types of nanomaterials can enable the obtained modified emulsified asphalt to have better stability, anti-aging, climate adaptability, soil adaptability and other properties.

[0029] In some embodiments, the weight ratio of the nanomaterial to the agricultural emulsified asphalt is 1:20 to 1:40.

[0030] In the above technical solution, limiting the weight ratio of nanomaterials, cationic emulsifiers and oxidized asphalt can make the final modified emulsified asphalt have better stability, anti-aging, climate adaptability, soil adaptability and other properties.

[0031] In some embodiments, the heating temperature is 50-70°C.

[0032] In the above technical solution, limiting the heating temperature can make the final modified emulsified asphalt have better stability, aging resistance, climate adaptability, soil adaptability and other properties.

[0033] In some embodiments, the first stirring speed is 8000-10000 r / min, and the first stirring time is 4-5 h.

[0034] In the above technical solution, limiting the speed and time of the first stirring can make the final modified emulsified asphalt have better stability, anti-aging, climate adaptability, soil adaptability and other properties.

[0035] On the other hand, the present application provides a method for preparing the above-mentioned matrix material, comprising the following steps:

[0036] (1) weighing the soil, the environmental mineral raw material mixture and the biocarbonaceous organic matrix, performing water absorption swelling, a second stirring and drying to obtain a preliminary mixed matrix, and storing it in a cool and dry place for later use;

[0037] (2) adding the biomagnetized fertilizer, the plant seeds and the water to the preliminary mixed matrix, and performing a third stirring to obtain a mixed matrix;

[0038] (3) applying the mixed matrix to the ground by spraying soil to form a matrix layer on the ground, and then spraying the modified emulsified asphalt on the surface of the matrix layer using a spray gun;

[0039] Wherein, the thickness of the matrix layer is 10 to 20 cm;

[0040] The spraying amount of the modified emulsified asphalt is 30-60 g / m 2 .

[0041] In the above technical scheme, soil, a mixture of environmental mineral raw materials and a biocarbonaceous organic matrix are first mixed to obtain a preliminary mixed matrix, and then plant seeds and biomagnetic fertilizers are added, which can prevent the plant seeds from germinating prematurely, thereby affecting the use effect. When formally applied, the matrix components other than the modified emulsified asphalt are sprayed on the ground by spraying with guest soil, which can ensure the formation of a uniform matrix layer with moderate looseness; using a spray gun to spray the modified emulsified asphalt on the surface of the matrix layer can reduce the amount of emulsified asphalt used, and at the same time ensure that the emulsified asphalt can eventually form a uniform film on the surface of the matrix material; limiting the thickness of the matrix layer can ensure that the matrix layer stably covers the original ground while minimizing the amount of matrix material used, and at the same time ensure that the roots of subsequent plants have sufficient growth space; limiting the spraying amount of modified emulsified asphalt can prevent the film formed by the modified emulsified asphalt on the soil surface from being too thick, affecting the germination of seeds.

[0042] In some embodiments, the speed of the first stirring and the second stirring is 50-60 r / min.

[0043] In the above technical solution, limiting the speed of the first stirring and the second stirring can ensure sufficient mixing of the matrix material, and after formal application, the stress of the ecological slope protection layer of the slope can be evenly distributed.

[0044] In some embodiments, the drying in step (1) is performed to a moisture content of 5% to 10%.

[0045] In the above technical solution, limiting the water content of the preliminary mixed matrix can ensure the stability of the preliminary mixed matrix during storage.

[0046] On the other hand, the present application provides the application of the above-mentioned matrix material or the above-mentioned method in the restoration of slope vegetation in high-altitude areas.

[0047] This application has the following beneficial effects:

[0048] 1. The matrix material for restoring vegetation on slopes in high-altitude areas provided in this application utilizes modified emulsified asphalt, biomagnetic fertilizer, soil, a mixture of environmental mineral raw materials, and a mixture of biological carbonaceous organic matrix, which can be effectively attached to slopes with larger slopes, thereby improving the originally barren and loose slopes, increasing soil fertility, and reducing soil water loss, laying the foundation for subsequent plant growth. After the plant seeds take root and germinate, the reinforcement effect of the plant roots on the soil and the shear strength between the soil are utilized to achieve an ecological slope protection effect.

[0049] 2. The matrix material provided in the present application for restoring vegetation on slopes in high altitude areas mixes plant seeds evenly in the matrix material. During subsequent application, the laying of the matrix material and the sowing of plants can be completed in one step, thus saving construction time and cost.

[0050] 3. The matrix material provided in this application for restoring slope vegetation in high-altitude areas uses only agricultural materials, mineral materials and biological materials, and adds nanomaterials. This will not only not cause harm to the originally fragile ecological environment, but also improve or solve some existing soil problems.

[0051] 4. The matrix material for restoring vegetation on slopes in high-altitude areas provided in this application can not only complete the vegetation restoration of large-area slopes in a short period of time, but some components in the matrix material can also solve the problem of excessive heavy metal content in the soil. It is not only suitable for slope vegetation restoration in high-altitude areas, but also provides an ecological slope protection solution for vegetation restoration on steep exposed rock slopes with high heavy metal content in mines, etc. DETAILED DESCRIPTION

[0052] The technical solutions in some embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments provided by the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present application.

[0053] Example 1

[0054] Follow these steps to prepare modified asphalt emulsion:

[0055] S11. After heating 20 parts of agricultural emulsified asphalt to 50° C., add 1 part of nano calcium carbonate, and stir at 8000 r / min for 4 hours to obtain the modified emulsified asphalt.

[0056] Example 2

[0057] Follow these steps to prepare modified asphalt emulsion:

[0058] S11. After heating 30 parts of agricultural emulsified asphalt to 60° C., add 1 part of nano silicon powder, and stir at 9000 r / min for 4.5 hours to obtain the modified emulsified asphalt.

[0059] Example 3

[0060] Follow these steps to prepare modified asphalt emulsion:

[0061] S11. After heating 40 parts of agricultural emulsified asphalt to 70° C., add 1 part of straw-based nano-copper composite material, and stir at 10000 r / min for 5 hours to obtain the modified emulsified asphalt.

[0062] Example 4

[0063] Prepare the ambient mineral raw material mixture as follows:

[0064] S21. Thoroughly mix 10 parts of bentonite, 5 parts of diatomaceous earth, 20 parts of vermiculite and 5 parts of apatite to obtain the environmental mineral raw material mixture.

[0065] Example 5

[0066] Prepare the ambient mineral raw material mixture as follows:

[0067] S21. Fully mix 20 parts of bentonite, 5 parts of diatomaceous earth, 25 parts of vermiculite and 5 parts of apatite to obtain the environmental mineral raw material mixture.

[0068] Example 6

[0069] Prepare the ambient mineral raw material mixture as follows:

[0070] S21. Fully mix 30 parts of bentonite, 5 parts of diatomaceous earth, 30 parts of vermiculite and 5 parts of apatite to obtain the environmental mineral raw material mixture.

[0071] Example 7

[0072] Prepare the mixed matrix as follows:

[0073] S31. 300 parts of soil, 40 parts of the environmental mineral raw material mixture prepared in Example 4 and 20 parts of animal feces charcoal were mixed, and water was added to swell the mixture. After the mixture was fully absorbed, it was stirred at 50r / min for 30min, and then hot air was introduced to dry it until the water content was 5%, to obtain a preliminary mixed matrix, which was stored in a cool and dry place for later use;

[0074] S32. Add 1 part of Wanrun-biomagnetic fertilizer, 20 parts of Elymus dahliae seeds and 20 parts of water to the preliminary mixed matrix, and stir at 50 r / min for 30 min to obtain the mixed matrix.

[0075] Example 8

[0076] Prepare the mixed matrix as follows:

[0077] S31. 350 parts of soil, 55 parts of the environmental mineral raw material mixture prepared in Example 5, 10 parts of wood charcoal and 15 parts of animal feces charcoal were mixed, and water was added to allow the mixture to absorb water and swell. After the mixture was fully absorbed by water, it was stirred at 55 r / min for 40 min, and then hot air was introduced to dry it until the water content was 8%, to obtain a preliminary mixed matrix, which was stored in a cool and dry place for later use;

[0078] S32. Add 2 parts of Wanrun-biomagnetic fertilizer, 5 parts of ryegrass seeds, 10 parts of old sibiricum seeds, 10 parts of Elymus salsa seeds and 25 parts of water to the preliminary mixed matrix, stir at 55r / min for 40min, and obtain the mixed matrix.

[0079] Example 9

[0080] Prepare the mixed matrix as follows:

[0081] S31. 400 parts of soil, 70 parts of the environmental mineral raw material mixture prepared in Example 6, 10 parts of wood charcoal, 10 parts of straw charcoal and 10 parts of animal feces charcoal were mixed, and water was added to swell the mixture. After the mixture was fully absorbed, it was stirred at 60r / min for 50min, and then hot air was introduced to dry it until the water content was 10%, to obtain a preliminary mixed matrix, which was stored in a cool and dry place for later use;

[0082] S32. Add 3 parts of Wanrun-biomagnetic fertilizer, 5 parts of alpine rhododendron seeds, 5 parts of ryegrass seeds, 5 parts of old sibiricum seeds, 5 parts of Elymus dahliae seeds, 5 parts of Caragana microphylla seeds, 5 parts of Potentilla fruticosa seeds and 30 parts of water to the mixed matrix, stir at 60r / min for 50min, and obtain the mixed matrix.

[0083] Comparative Example 1

[0084] Prepare the mixed matrix as follows:

[0085] S31. After 40 parts of the environmental mineral raw material mixture prepared in Example 4 and 20 parts of animal feces charcoal are mixed, water is added for water absorption and swelling. After the mixture is fully absorbed by water, it is stirred at 50r / min for 30min, and then hot air is introduced for drying until the water content is 5%, to obtain a preliminary mixed matrix, which is stored in a cool and dry place for later use;

[0086] S32. Add 1 part of Wanrun-biomagnetic fertilizer, 20 parts of Elymus salsa and 20 parts of water to the preliminary mixed matrix, stir at 50 r / min for 30 minutes to obtain the mixed matrix.

[0087] Comparative Example 2

[0088] Prepare the mixed matrix as follows:

[0089] S31. 300 parts of soil, 40 parts of the environmental mineral raw material mixture prepared in Example 4 and 20 parts of animal feces charcoal were mixed, and water was added to swell the mixture. After the mixture was fully absorbed, it was stirred at 50r / min for 30min, and then hot air was introduced to dry it until the water content was 5%, to obtain a preliminary mixed matrix, which was stored in a cool and dry place for later use;

[0090] S32. Add 1 part of Stanley 15-15-15 compound fertilizer, 20 parts of Elymus dahliae seeds and 20 parts of water to the preliminary mixed matrix, and stir at 50 r / min for 30 minutes to obtain the mixed matrix.

[0091] Comparative Example 3

[0092] Prepare the mixed matrix as follows:

[0093] S31. 300 parts of soil, 40 parts of the environmental mineral raw material mixture prepared in Example 4 and 20 parts of animal feces charcoal were mixed, and water was added to swell the mixture. After the mixture was fully absorbed, it was stirred at 50r / min for 30min, and then hot air was introduced to dry it until the water content was 5%, to obtain a preliminary mixed matrix, which was stored in a cool and dry place for later use;

[0094] S32. Add 1 part of Wanrun-biomagnetic fertilizer and 20 parts of water to the preliminary mixed matrix, stir at 50 r / min for 30 minutes to obtain the mixed matrix.

[0095] Experimental Example 1 Effects of different matrix components on slope vegetation restoration

[0096] S41. A slope in a high-altitude area in western Sichuan was selected as the experimental plot. The experimental plot was divided into 27 restoration areas according to the principle of 1m interval between two adjacent restoration areas, and numbered in groups of 3 restoration areas.

[0097] S42. Mechanically crush the larger rocks in each restoration area to a crushing depth of 20 cm. After the crushing is completed, the land is plowed until the surface is roughly flat;

[0098] S43. Using a soil sprayer, the mixed matrix prepared in Examples 7 to 9 was sprayed on the land surface of the restoration groups 1 to 3 in sequence to form a matrix layer with a thickness of 10 cm, 15 cm, and 20 cm, respectively, and then a spray gun was used to spray the matrix at 30 g / m 2 , 45g / m 2 , 60g / m 2 The modified emulsified asphalt prepared in Examples 1 to 3 was sprayed on the surface of the substrate layer of the No. 1 to 3 repair groups in sequence with a spraying amount of 30 g / m; the mixed substrate prepared in Comparative Examples 1 to 3 was sprayed on the surface of the land of the No. 4 to 6 repair groups in sequence using a soil sprayer to form a substrate layer with a thickness of 10 cm, and then a spray gun was used to spray the substrate layer at a rate of 30 g / m 2 The modified emulsified asphalt prepared in Example 1 was sprayed on the surface of the substrate layer of the No. 4 to No. 6 repair groups in sequence; the mixed substrate prepared in Example 1 was sprayed on the surface of the land of the No. 7 repair group using a soil sprayer to form a substrate layer with a thickness of 10 cm, and then a spray gun was used to spray the substrate at a rate of 30 g / m 2 Spraying amount: spray the unmodified agricultural emulsified asphalt on the surface of the substrate layer of the No. 7 repair group; use a spray gun at 30g / m 2 The modified emulsified asphalt prepared in Example 1 was sprayed on the surface of the land in the No. 8 restoration group; the No. 9 restoration group was used as a blank control group without the application of the mixed matrix and modified emulsified asphalt. The vegetation coverage, seed germination rate, porosity, corrosion resistance, heavy metal ion content and organic matter of the restoration area were recorded on the 5th, 15th and 30th days, respectively. The recorded results are shown in Table 1.

[0099] Table 1 Slope restoration status

[0100]

[0101]

[0102] Test reference standards:

[0103] The vegetation coverage rate was calculated by the sampling needle method, which was the percentage of the vertical projection area of ​​the aboveground part of the plant community as a whole or an individual to the sample area;

[0104] Seed germination rate = (number of germinated seeds / number of test seeds) × 100%;

[0105] The porosity was determined by the density test method according to the Geotechnical Test Method Standard (GB / T50123-1999);

[0106] The erosion resistance score is based on the “Analysis of Soil Erosion Resistance Index System and Evaluation Method”;

[0107] Heavy metal ions are determined according to the "Soil Pollution Risk Screening Values ​​and Control Values ​​for Construction Land" (GB / 36600-2018);

[0108] Organic matter was determined by potassium dichromate volumetric method (dilution heat method) according to the Dictionary of Soil Science: Science Press, 2013.10.

[0109] According to the above data, it can be seen that the matrix material of the present application can effectively improve the soil fertility of the slopes in high-altitude areas, thereby effectively increasing the recovery speed of the slope vegetation. After adding seeds, the slope vegetation recovers very quickly. At the same time, the matrix material of the present application can effectively improve the seed germination rate, plant survival rate, soil porosity, soil erosion resistance and soil organic matter content. In addition, the present application uses agricultural emulsified asphalt modified by nanoparticles, which greatly reduces the ion concentration of harmful heavy metals. In addition, it can be seen that the present application uses biomagnetic fertilizers, which can effectively increase the content of organic matter in the soil. Compared with chemical fertilizers, the plant growth-promoting effect is also better, and no chemical components will remain in the soil. In summary, the matrix material for restoring slope vegetation in high-altitude areas provided by the present application has excellent ecological restoration and soil improvement capabilities. It can be applied to slope repair projects in multiple high-altitude areas in the future, and it also provides an ecological restoration solution for areas with high soil heavy metal content such as mine slopes. It is a material with great application potential and social value.

[0110] The above is only a preferred embodiment of the present application. It should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge in the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present application, and shall be within the scope of protection of the claims attached to the present application.

Claims

1. Matrix materials used to restore slope vegetation in high altitude areas, It is characterized in that In parts by weight:

2. The matrix material according to claim 1, It is characterized in that The components of the biological magnetized fertilizer include silicate minerals, organic matter, Trichoderma pseudokoningii and Bacillus subtilis; and / or, the soil comprises sandy loam with a clay content of about 40%; and / or, the environmental mineral raw material mixture includes bentonite, diatomaceous earth, vermiculite and apatite; And / or, the biocarbonaceous organic matrix includes at least one of wood charcoal, straw charcoal and animal manure charcoal; And / or, the variety of the plant seeds includes at least one of Rhododendron australis, Elymus sibiricus, Elymus dahliae, Lolium perenne, Caragana microphylla and Potentilla fruticosa.

3. The matrix material according to claim 2, It is characterized in that The ratio of the bentonite, the diatomaceous earth, the vermiculite and the apatite is 2:1:4:1 to 6:1:6:

1.

4. The matrix material according to claim 1, It is characterized in that The method for preparing the modified emulsified asphalt comprises: After the nano material is added to the emulsified asphalt, heating and a first stirring are performed to obtain the modified emulsified asphalt.

5. The matrix material according to claim 4, It is characterized in that The emulsified asphalt includes agricultural emulsified asphalt; And / or, the nano material includes one of nano calcium carbonate, nano silicon powder and nano metal composite material.

6. The matrix material according to claim 4, It is characterized in that The weight ratio of the nano material to the agricultural emulsified asphalt is 1:20 to 1:

40.

7. The matrix material according to claim 4, It is characterized in that The heating temperature is 50-70°C; And / or, the first stirring speed is 8000-10000 r / min, and the first stirring time is 4-5 h.

8. A method for using the matrix material according to any one of claims 1 to 7, It is characterized in that The following steps are involved: (1) weighing the soil, the environmental mineral raw material mixture and the biocarbonaceous organic matrix, performing water absorption swelling, a second stirring and drying to obtain a preliminary mixed matrix, and storing it in a cool and dry place for later use; (2) adding the biomagnetized fertilizer, the plant seeds and the water to the preliminary mixed matrix, and performing a third stirring to obtain a mixed matrix; (3) applying the mixed matrix to the ground by spraying soil to form a matrix layer on the ground, and then spraying the modified emulsified asphalt on the surface of the matrix layer using a spray gun; Wherein, the thickness of the matrix layer is 10 to 20 cm; The spraying amount of the modified emulsified asphalt is 30-60 g / m 2 .

9. The method of use according to claim 8, It is characterized in that The speed of the second stirring and the third stirring is 50-60 r / min; And / or, the step (1) is drying to a moisture content of 5% to 10%.

10. Use of the matrix material according to any one of claims 1 to 7 or the method of use according to any one of claims 8 to 9 in restoring vegetation on slopes in high altitude areas.

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