Ecological restoration method for erosion-resistant organic ecological matrix layer side slope based on W-OH

Abstract

The invention discloses an anti-erosion organic ecological matrix layer slope ecological restoration method based on W-OH, and relates to the technical field of ecological restoration, and the method comprises the following steps: S1, material preparation; s2, preparing an organic ecological matrix, namely sequentially adding field soil, humus soil, an organic fertilizer, the pretreated grass seeds and a composite extracting solution into a stirrer, and uniformly stirring and mixing to obtain the organic ecological matrix; s3, slope covering; according to the method, the ecology of the slope can be quickly restored on the slope, and the structural stability of the slope is enhanced; according to the method, the surface of the side slope is mainly covered with the organic ecological matrix layer, multiple pretreated grass seeds are introduced, the pretreated grass seeds can germinate, root and grow in the organic ecological matrix layer, and therefore the effect of covering the organic ecological matrix layer is achieved, and the soil structure can be greatly enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of ecological restoration, in particular to a method for ecological restoration of slopes using an anti-corrosion organic ecological matrix layer based on W-OH. Background Art

[0002] With the development of economy, infrastructure construction continues to develop rapidly. However, in the process of development, contradictions will arise between resource development and environmental construction.

[0003] Substations are usually built on high ground or hillsides, and high slopes are prone to geological disasters such as landslides and slope falls. These disasters will not only cause the locking of substation fixed equipment to fail, affecting the stable operation of equipment and power systems, but may also cause safety hazards such as falling rocks and increase fire risks. However, after the construction of the substation, the ecological restoration of its slopes is usually slow. This is mainly because when the conventional methods are used to directly restore the ecology of the substation slopes, it is easy to have difficulties in vegetation growth. After precipitation, it is easy to cause slope collapse or landslides, which greatly affects the ecological restoration effect of the substation slopes.

[0004] Existing artificial ecological restoration of slopes usually involves directly covering the slope surface with a layer of soil and then planting some plants in the soil. However, the plant coverage rate is relatively low, there are more plants in the initial stage, and subsequently, the plant community is prone to decline, which ultimately leads to the problem of poor stability of slope ecological restoration.

[0005] Therefore, the present invention solves the corresponding problems by providing an ecological restoration method for slopes of an anti-erosion organic ecological matrix layer based on W-OH. Summary of the invention

[0006] The purpose of the present invention is to provide a slope ecological restoration method based on W-OH anti-erosion organic ecological matrix layer to solve the deficiencies in the prior art.

[0007] The technical solution adopted by the present invention is as follows:

[0008] The ecological restoration method of slope with an anti-erosion organic ecological matrix layer based on W-OH includes the following steps:

[0009] S1: Prepare materials, including by weight: 62-70 parts of field soil, 4-6 parts of humus soil, 1-2 parts of organic fertilizer, 0.01-0.02 parts of pretreated grass seeds, and 3-5 parts of composite extract;

[0010] S2: preparing an organic ecological matrix, adding field soil, humus soil, organic fertilizer, pretreated grass seeds, and composite extract into a blender in sequence, stirring and mixing them evenly to obtain an organic ecological matrix;

[0011] S3: Slope covering, the organic ecological matrix obtained in S2 is evenly covered on the slope surface to form an organic ecological matrix layer with an average thickness of 3-4 cm;

[0012] S4: W-OH spraying: First, the W-OH material is mixed with water to dilute to a W-OH solution with a mass fraction of 2%-2.5%. Then, the W-OH solution is evenly sprayed on the surface of the organic ecological matrix layer. The spraying amount of the W-OH solution is 1-1.2L / m 2 .

[0013] Furthermore, the organic fertilizer in S1 is corroded pig manure, and the components of the corroded pig manure are: organic matter content ≥46%, nitrogen, phosphorus and potassium content ≥5.5%, and water content ≤28%.

[0014] Furthermore, the preparation method of the pretreated grass seeds in S1 comprises the following steps:

[0015] S1.1.1: Mix green grass, ryegrass, tall fescue, Vallisneria, and red fescue in equal proportions;

[0016] S1.1.2: Place the grass seeds mixed in S1.1.1 in the soaking solution for 2 days, then take them out and drain them;

[0017] S1.1.3: Mix the soaked grass seeds with wet sand, spread them flat, and use a mixed light source for illumination. The illumination time is 10-12 hours per day, the temperature is maintained at 28-30℃, and the humidity is maintained at 75%, and the treatment is continued for 4 days;

[0018] S1.1.4: After screening, pre-treated grass seeds are obtained.

[0019] Further, the mixture ratio of grass seeds and soaking liquid in S1.1.2 is 30-40 g: 300 mL, and the soaking liquid preparation method comprises the following steps:

[0020] S1.2.1: Pick the Forsythia suspensa leaves and dry them at 50°C for 10 hours;

[0021] S1.2.2: Grind the dried Forsythia suspensa leaves and pass them through an 80-mesh sieve to obtain Forsythia suspensa leaf powder;

[0022] S1.2.3: Weigh the Forsythia suspensa leaf powder, add it to the ethanol solution, adjust the temperature to 80°C, extract in a water bath for 4 hours, then cool naturally to room temperature, centrifuge for 10 minutes, and take the supernatant;

[0023] S1.2.4: drying the supernatant by rotary evaporation to obtain an extract;

[0024] S1.2.5: Add the extract to water, stir and mix evenly, then add growth hormone, disperse it by ultrasonication to obtain an immersion solution.

[0025] Furthermore, the mixing ratio of Forsythia suspensa leaf powder and ethanol solution in S1.2.3 is 40-45 g:180 mL, and the mass fraction of the ethanol solution is 80%.

[0026] Furthermore, the centrifugal treatment speed in S1.2.3 is 8000 r / min, the mixing mass ratio of the extract and water in S1.2.5 is 1:100, and the mass fraction of growth hormone in the soaking liquid is 0.25%.

[0027] Furthermore, the mixed light source is used for illumination processing: a mixed light source with a ratio of red light: white light: purple light of 1:3:1 is used, and the total illumination intensity is 220 μmol / m per second. 2 .

[0028] Furthermore, the preparation method of the composite extract in S1 comprises the following steps:

[0029] S1.3.1: Crush corn stalks to obtain corn stalk powder;

[0030] S1.3.2: Burn corn stalk powder and collect ash;

[0031] S1.3.3: Mix wood ash and water in a mass ratio of 1:10, adjust the temperature to 75°C, keep warm and stir for 2 hours, then centrifuge at 5500r / min for 10min, take the supernatant and obtain the composite extract.

[0032] Furthermore, nano additives are added to the W-OH solution, and the mass fraction of the nano additives is 1.2%-1.3%.

[0033] Furthermore, the method for preparing the nano additive comprises the following steps:

[0034] S4.1.1: First, prepare a calcium hydroxide solution with a mass fraction of 5%, then add butyl titanate to the calcium hydroxide solution, disperse it ultrasonically for 15 minutes, then adjust the temperature to 25°C and keep it warm for 10 minutes, then introduce carbon dioxide into the calcium hydroxide solution until the pH of the system reaches 7 at the end of the reaction, and stop introducing carbon dioxide to obtain a slurry;

[0035] S4.1.2: The obtained slurry is subjected to rotary evaporation drying to obtain the nano-additive.

[0036] Furthermore, the mass ratio of butyl titanate to calcium hydroxide is 3:1, and the flow rate of carbon dioxide is 2.5 L / min.

[0037] After a period of restoration, additional grass seeds and shrub seeds can be sown to increase ecological diversity.

[0038] W-OH (Water-based Organic Hydrophilic) is an eco-friendly hydrophilic polyurethane resin composite curing material. It uses water as a curing agent. The gel formed will no longer dissolve in water and has excellent anti-scouring ability and stability.

[0039] Beneficial effects:

[0040] The method of the present invention can quickly repair the ecology of the slope and enhance the structural stability of the slope. The present invention mainly covers the surface of the slope with an organic ecological matrix layer, introduces a variety of pre-treated grass seeds, which can germinate, take root and grow in the organic ecological matrix layer, thereby achieving the effect of covering the organic ecological matrix layer, and can greatly enhance the soil structure. By spraying a W-OH solution on the surface of the organic ecological matrix layer, the W-OH solution can be combined with the matrix layer, and then the cohesion and stability of the soil in the organic ecological matrix layer can be greatly improved, so that the problem of soil loss caused by rainwater scouring and erosion can be more effectively prevented, a stable matrix environment is provided for plants, and the complexity of the ecology can be continuously enriched as time goes by.

[0041] By using a variety of grass species, rapid vegetation coverage and diversity development can be ensured;

[0042] The present invention can significantly improve the germination rate of seeds by pretreating the grass seeds. This is because the active ingredients can stimulate the physiological activities inside the seeds, accelerate the transformation and utilization of nutrients, and make the seeds more likely to break through the constraints of the seed coat and germinate. At the same time, the soaking liquid can also eliminate microorganisms and resistance substances on the surface of the seeds, reduce the harm of pathogens and insect eggs, and through the soaking treatment, the grass seeds will form a more developed root system during the germination process, which can increase the contact area between the root system and the soil and improve the nutrient absorption efficiency.

[0043] The germination of grass seeds can be promoted through the illumination of multiple colors. The strong penetrating power of light can penetrate deep into the grass seed tissue and promote the synthesis and accumulation of growth-promoting substances such as gibberellins inside the seeds, thereby accelerating the germination rate of seeds and increasing the germination rate. It can also stimulate certain physiological reaction processes inside the seeds, such as the activation of enzymes and the production of metabolites, thereby promoting seed germination and seedling growth.

[0044] The introduction of nano-additives can improve the aging resistance of the organic ecological matrix layer, especially significantly improve the UV aging resistance of W-OH, thereby maintaining the stability of the organic ecological matrix layer for a longer period of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 Statistical chart of plant coverage rate of each group at 90 days. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The following are specific embodiments:

[0048] Embodiment 1:

[0049] The ecological restoration method of slope with an anti-erosion organic ecological matrix layer based on W-OH includes the following steps:

[0050] S1: Prepare materials, including by weight: 62 parts of field soil, 4 parts of humus soil, 1 part of organic fertilizer, 0.01 parts of pretreated grass seeds, and 3 parts of composite extract.

[0051] Among them, the organic fertilizer is corroded pig manure; the components of corroded pig manure are: organic matter content ≥46%, nitrogen, phosphorus and potassium content ≥5.5%, and water content ≤28%;

[0052] Wherein, the preparation method of pre-treated grass seeds is:

[0053] S1.1.1: Mix green grass, ryegrass, tall fescue, Vallisneria, and red fescue in equal proportions;

[0054] S1.1.2: Place the grass seeds in the soaking solution for 2 days, then take them out and drain them;

[0055] S1.1.3: Mix the soaked grass seeds with wet sand, spread them flat, and use a mixed light source for illumination for 10 hours a day, with the temperature maintained at 28°C and the humidity maintained at 75%, for 4 consecutive days;

[0056] S1.1.4: After screening, pre-treated grass seeds are obtained.

[0057] The mixing ratio of grass seeds and soaking liquid is 30g:300mL; the soaking liquid preparation method is:

[0058] S1.2.1: Pick the Forsythia suspensa leaves and dry them at 50°C for 10 hours;

[0059] S1.2.2: Grind the dried Forsythia suspensa leaves and pass them through an 80-mesh sieve to obtain Forsythia suspensa leaf powder;

[0060] S1.2.3: Weigh the Forsythia suspensa leaf powder, add it to the ethanol solution, adjust the temperature to 80°C, extract in a water bath for 4 hours, then cool naturally to room temperature, centrifuge for 10 minutes, and take the supernatant;

[0061] S1.2.4: drying the supernatant by rotary evaporation to obtain an extract;

[0062] S1.2.5: Add the extract to water, stir and mix evenly, then add growth hormone, disperse it by ultrasonication to obtain an immersion solution.

[0063] The mixing ratio of Forsythia suspensa leaf powder and ethanol solution is 40g:180mL; the mass fraction of the ethanol solution is 80%.

[0064] The centrifugal treatment speed is 8000 r / min; the mass ratio of the extract to water is 1:100; and the mass fraction of growth hormone in the soaking solution is 0.25%.

[0065] The mixed light source is used for illumination processing: a mixed light source with a ratio of red light: white light: purple light of 1:3:1 is used, and the total light intensity per second is 220 μmol / m 2 .

[0066] Wherein, the preparation method of the composite extract is:

[0067] S1.3.1: Crush corn stalks to obtain corn stalk powder;

[0068] S1.3.2: Burn corn stalk powder and collect ash;

[0069] S1.3.3: Mix wood ash and water in a mass ratio of 1:10, adjust the temperature to 75°C, keep warm and stir for 2 hours, then centrifuge at 5500r / min for 10min, take the supernatant and obtain the composite extract.

[0070] S2: Preparation of organic ecological matrix,

[0071] Add field soil, humus soil, organic fertilizer, pre-treated grass seeds, and composite extract into a blender in sequence, and stir and mix them evenly to obtain an organic ecological matrix;

[0072] S3: Slope cover,

[0073] The organic ecological matrix obtained in S2 is evenly covered on the slope surface to form an organic ecological matrix layer;

[0074] Among them, the average thickness of the organic ecological matrix layer is 3 cm;

[0075] S4: W-OH spraying: First, the W-OH material is mixed with water to dilute to a W-OH solution with a mass fraction of 2%. Then, the W-OH solution is evenly sprayed on the surface of the organic ecological matrix layer; the spraying amount of the W-OH solution is 1L / m 2 .

[0076] Wherein, nano additives are added into the W-OH solution, and the mass fraction of the nano additives is 1.2%.

[0077] Wherein, the preparation method of nano additive is:

[0078] S4.1.1: First, prepare a calcium hydroxide solution with a mass fraction of 5%, then add butyl titanate to the calcium hydroxide solution, disperse it ultrasonically for 15 minutes, then adjust the temperature to 25°C and keep it warm for 10 minutes, then introduce carbon dioxide into the calcium hydroxide solution until the pH of the system reaches 7 at the end of the reaction, and stop introducing carbon dioxide to obtain a slurry;

[0079] S4.1.1: The obtained slurry is subjected to rotary evaporation drying to obtain the nano additive.

[0080] The mass ratio of butyl titanate to calcium hydroxide is 3:1; the flow rate of carbon dioxide is 2.5 L / min.

[0081] Embodiment 2:

[0082] The ecological restoration method of slope with an anti-erosion organic ecological matrix layer based on W-OH includes the following steps:

[0083] S1: Prepare materials, including by weight: 65 parts of field soil, 4.5 parts of humus soil, 1.2 parts of organic fertilizer, 0.012 parts of pretreated grass seeds, and 3.5 parts of composite extract.

[0084] Among them, the organic fertilizer is corroded pig manure; the components of corroded pig manure are: organic matter content ≥46%, nitrogen, phosphorus and potassium content ≥5.5%, and water content ≤28%;

[0085] Wherein, the preparation method of pre-treated grass seeds is:

[0086] S1.1.1: Mix green grass, ryegrass, tall fescue, Vallisneria, and red fescue in equal proportions;

[0087] S1.1.2: Place the grass seeds in the soaking solution for 2 days, then take them out and drain them;

[0088] S1.1.3: Mix the soaked grass seeds with wet sand, spread them flat, and use a mixed light source for illumination for 10 hours a day, with the temperature maintained at 28°C and the humidity maintained at 75%, for 4 consecutive days;

[0089] S1.1.4: After screening, pre-treated grass seeds are obtained.

[0090] The mixing ratio of grass seeds and soaking liquid is 30g:300mL; the soaking liquid preparation method is:

[0091] S1.2.1: Pick the Forsythia suspensa leaves and dry them at 50°C for 10 hours;

[0092] S1.2.2: Grind the dried Forsythia suspensa leaves and pass them through an 80-mesh sieve to obtain Forsythia suspensa leaf powder;

[0093] S1.2.3: Weigh the Forsythia suspensa leaf powder, add it to the ethanol solution, adjust the temperature to 80°C, extract in a water bath for 4 hours, then cool naturally to room temperature, centrifuge for 10 minutes, and take the supernatant;

[0094] S1.2.4: drying the supernatant by rotary evaporation to obtain an extract;

[0095] S1.2.5: Add the extract to water, stir and mix evenly, then add growth hormone, disperse it by ultrasonication to obtain an immersion solution.

[0096] The mixing ratio of Forsythia suspensa leaf powder and ethanol solution is 40g:180mL; the mass fraction of the ethanol solution is 80%.

[0097] The centrifugal treatment speed is 8000 r / min; the mass ratio of the extract to water is 1:100; and the mass fraction of growth hormone in the soaking solution is 0.25%.

[0098] The mixed light source is used for illumination processing: a mixed light source with a ratio of red light: white light: purple light of 1:3:1 is used, and the total light intensity per second is 220 μmol / m 2 .

[0099] Wherein, the preparation method of the composite extract is:

[0100] S1.3.1: Crush corn stalks to obtain corn stalk powder;

[0101] S1.3.2: Burn corn stalk powder and collect ash;

[0102] S1.3.3: Mix wood ash and water in a mass ratio of 1:10, adjust the temperature to 75°C, keep warm and stir for 2 hours, then centrifuge at 5500r / min for 10min, take the supernatant and obtain the composite extract.

[0103] S2: Preparation of organic ecological matrix,

[0104] Add field soil, humus soil, organic fertilizer, pre-treated grass seeds, and composite extract into a blender in sequence, and stir and mix them evenly to obtain an organic ecological matrix;

[0105] S3: Slope cover,

[0106] The organic ecological matrix obtained in S2 is evenly covered on the slope surface to form an organic ecological matrix layer;

[0107] Among them, the average thickness of the organic ecological matrix layer is 3 cm;

[0108] S4: W-OH spraying: First, the W-OH material is mixed with water to dilute to a W-OH solution with a mass fraction of 2%. Then, the W-OH solution is evenly sprayed on the surface of the organic ecological matrix layer; the spraying amount of the W-OH solution is 1L / m 2 .

[0109] Wherein, nano additives are added into the W-OH solution, and the mass fraction of the nano additives is 1.22%.

[0110] Wherein, the preparation method of nano additive is:

[0111] S4.1.1: First, prepare a calcium hydroxide solution with a mass fraction of 5%, then add butyl titanate to the calcium hydroxide solution, disperse it ultrasonically for 15 minutes, then adjust the temperature to 25°C and keep it warm for 10 minutes, then introduce carbon dioxide into the calcium hydroxide solution until the pH of the system reaches 7 at the end of the reaction, and stop introducing carbon dioxide to obtain a slurry;

[0112] S4.1.2: The obtained slurry is subjected to rotary evaporation drying to obtain the nano-additive.

[0113] The mass ratio of butyl titanate to calcium hydroxide is 3:1; the flow rate of carbon dioxide is 2.5 L / min.

[0114] Embodiment 3:

[0115] The ecological restoration method of slope with an anti-erosion organic ecological matrix layer based on W-OH includes the following steps:

[0116] S1: Prepare materials, including by weight: 68 parts of field soil, 5 parts of humus soil, 1.6 parts of organic fertilizer, 0.014 parts of pretreated grass seeds, and 4 parts of composite extract.

[0117] Among them, the organic fertilizer is corroded pig manure; the components of corroded pig manure are: organic matter content ≥46%, nitrogen, phosphorus and potassium content ≥5.5%, and water content ≤28%;

[0118] Wherein, the preparation method of pre-treated grass seeds is:

[0119] S1.1.1: Mix green grass, ryegrass, tall fescue, Vallisneria, and red fescue in equal proportions;

[0120] S1.1.2: Place the grass seeds in the soaking solution for 2 days, then take them out and drain them;

[0121] S1.1.3: Mix the soaked grass seeds with wet sand, spread them flat, and use a mixed light source for illumination for 11 hours a day, with the temperature maintained at 28°C and the humidity maintained at 75%, for 4 consecutive days;

[0122] S1.1.4: After screening, pre-treated grass seeds are obtained.

[0123] The mixing ratio of grass seeds to soaking liquid is 32g:300mL; the soaking liquid preparation method is:

[0124] S1.2.1: Pick the Forsythia suspensa leaves and dry them at 50°C for 10 hours;

[0125] S1.2.2: Grind the dried Forsythia suspensa leaves and pass them through an 80-mesh sieve to obtain Forsythia suspensa leaf powder;

[0126] S1.2.3: Weigh the Forsythia suspensa leaf powder, add it to the ethanol solution, adjust the temperature to 80°C, extract in a water bath for 4 hours, then cool naturally to room temperature, centrifuge for 10 minutes, and take the supernatant;

[0127] S1.2.4: drying the supernatant by rotary evaporation to obtain an extract;

[0128] S1.2.5: Add the extract to water, stir and mix evenly, then add growth hormone, disperse it by ultrasonication to obtain an immersion solution.

[0129] The mixing ratio of Forsythia suspensa leaf powder and ethanol solution is 43g:180mL; the mass fraction of the ethanol solution is 80%.

[0130] The centrifugal treatment speed is 8000 r / min; the mass ratio of the extract to water is 1:100; and the mass fraction of growth hormone in the soaking solution is 0.25%.

[0131] The mixed light source is used for illumination processing: a mixed light source with a ratio of red light: white light: purple light of 1:3:1 is used, and the total light intensity per second is 220 μmol / m 2 .

[0132] Wherein, the preparation method of the composite extract is:

[0133] S1.3.1: Crush corn stalks to obtain corn stalk powder;

[0134] S1.3.2: Burn corn stalk powder and collect ash;

[0135] S1.3.3: Mix wood ash and water in a mass ratio of 1:10, adjust the temperature to 75°C, keep warm and stir for 2 hours, then centrifuge at 5500r / min for 10min, take the supernatant and obtain the composite extract.

[0136] S2: Preparation of organic ecological matrix,

[0137] Add field soil, humus soil, organic fertilizer, pre-treated grass seeds, and composite extract into a blender in sequence, and stir and mix them evenly to obtain an organic ecological matrix;

[0138] S3: Slope cover,

[0139] The organic ecological matrix obtained in S2 is evenly covered on the slope surface to form an organic ecological matrix layer;

[0140] Among them, the average thickness of the organic ecological matrix layer is 3 cm;

[0141] S4: W-OH spraying: First, the W-OH material is mixed with water to dilute to a W-OH solution with a mass fraction of 2%. Then, the W-OH solution is evenly sprayed on the surface of the organic ecological matrix layer; the spraying amount of the W-OH solution is 1L / m 2 .

[0142] Wherein, nano additives are added into the W-OH solution, and the mass fraction of the nano additives is 1.21%.

[0143] Wherein, the preparation method of nano additive is:

[0144] S4.1.1: First, prepare a calcium hydroxide solution with a mass fraction of 5%, then add butyl titanate to the calcium hydroxide solution, disperse it ultrasonically for 15 minutes, then adjust the temperature to 25°C and keep it warm for 10 minutes, then introduce carbon dioxide into the calcium hydroxide solution until the pH of the system reaches 7 at the end of the reaction, and stop introducing carbon dioxide to obtain a slurry;

[0145] S4.1.2: The obtained slurry is subjected to rotary evaporation drying to obtain the nano-additive.

[0146] The mass ratio of butyl titanate to calcium hydroxide is 3:1; the flow rate of carbon dioxide is 2.5 L / min.

[0147] Embodiment 4:

[0148] The ecological restoration method of slope with an anti-erosion organic ecological matrix layer based on W-OH includes the following steps:

[0149] S1: Prepare materials, including by weight: 70 parts of field soil, 5.5 parts of humus soil, 1.8 parts of organic fertilizer, 0.018 parts of pretreated grass seeds, and 4.5 parts of composite extract.

[0150] Among them, the organic fertilizer is corroded pig manure; the components of corroded pig manure are: organic matter content ≥46%, nitrogen, phosphorus and potassium content ≥5.5%, and water content ≤28%;

[0151] Wherein, the preparation method of pre-treated grass seeds is:

[0152] S1.1.1: Mix green grass, ryegrass, tall fescue, Vallisneria, and red fescue in equal proportions;

[0153] S1.1.2: Place the grass seeds in the soaking solution for 2 days, then take them out and drain them;

[0154] S1.1.3: Mix the soaked grass seeds with wet sand, spread them flat, and use a mixed light source for illumination for 12 hours a day, with the temperature maintained at 28°C and the humidity maintained at 75%, for 4 consecutive days;

[0155] S1.1.4: After screening, pre-treated grass seeds are obtained.

[0156] The mixing ratio of grass seeds to soaking liquid is 38g:300mL; the soaking liquid preparation method is:

[0157] S1.2.1: Pick the Forsythia suspensa leaves and dry them at 50°C for 10 hours;

[0158] S1.2.2: Grind the dried Forsythia suspensa leaves and pass them through an 80-mesh sieve to obtain Forsythia suspensa leaf powder;

[0159] S1.2.3: Weigh the Forsythia suspensa leaf powder, add it to the ethanol solution, adjust the temperature to 80°C, extract in a water bath for 4 hours, then cool naturally to room temperature, centrifuge for 10 minutes, and take the supernatant;

[0160] S1.2.4: drying the supernatant by rotary evaporation to obtain an extract;

[0161] S1.2.5: Add the extract to water, stir and mix evenly, then add growth hormone, disperse it by ultrasonication to obtain an immersion solution.

[0162] The mixing ratio of Forsythia suspensa leaf powder and ethanol solution is 43g:180mL; the mass fraction of the ethanol solution is 80%.

[0163] The centrifugal treatment speed is 8000 r / min; the mass ratio of the extract to water is 1:100; and the mass fraction of growth hormone in the soaking solution is 0.25%.

[0164] The mixed light source is used for illumination processing: a mixed light source with a ratio of red light: white light: purple light of 1:3:1 is used, and the total light intensity per second is 220 μmol / m 2 .

[0165] Wherein, the preparation method of the composite extract is:

[0166] S1.3.1: Crush corn stalks to obtain corn stalk powder;

[0167] S1.3.2: Burn corn stalk powder and collect ash;

[0168] S1.3.3: Mix wood ash and water in a mass ratio of 1:10, adjust the temperature to 75°C, keep warm and stir for 2 hours, then centrifuge at 5500r / min for 10min, take the supernatant and obtain the composite extract.

[0169] S2: Preparation of organic ecological matrix,

[0170] Add field soil, humus soil, organic fertilizer, pre-treated grass seeds, and composite extract into a blender in sequence, and stir and mix them evenly to obtain an organic ecological matrix;

[0171] S3: Slope cover,

[0172] The organic ecological matrix obtained in S2 is evenly covered on the slope surface to form an organic ecological matrix layer;

[0173] Among them, the average thickness of the organic ecological matrix layer is 3 cm;

[0174] S4: W-OH spraying: First, the W-OH material is mixed with water to dilute to a W-OH solution with a mass fraction of 2.4%. Then, the W-OH solution is evenly sprayed on the surface of the organic ecological matrix layer; the spraying amount of the W-OH solution is 1L / m 2 .

[0175] Wherein, nano additives are added into the W-OH solution, and the mass fraction of the nano additives is 1.26%.

[0176] Wherein, the preparation method of nano additive is:

[0177] S4.1.1: First, prepare a calcium hydroxide solution with a mass fraction of 5%, then add butyl titanate to the calcium hydroxide solution, disperse it ultrasonically for 15 minutes, then adjust the temperature to 25°C and keep it warm for 10 minutes, then introduce carbon dioxide into the calcium hydroxide solution until the pH of the system reaches 7 at the end of the reaction, and stop introducing carbon dioxide to obtain a slurry;

[0178] S4.1.2: The obtained slurry is subjected to rotary evaporation drying to obtain the nano-additive.

[0179] The mass ratio of butyl titanate to calcium hydroxide is 3:1; the flow rate of carbon dioxide is 2.5 L / min.

[0180] Embodiment 5:

[0181] The ecological restoration method of slope with an anti-erosion organic ecological matrix layer based on W-OH includes the following steps:

[0182] S1: Prepare materials, including by weight: 70 parts of field soil, 6 parts of humus soil, 2 parts of organic fertilizer, 0.02 parts of pretreated grass seeds, and 5 parts of composite extract.

[0183] Among them, the organic fertilizer is corroded pig manure; the components of corroded pig manure are: organic matter content ≥46%, nitrogen, phosphorus and potassium content ≥5.5%, and water content ≤28%;

[0184] Wherein, the preparation method of pre-treated grass seeds is:

[0185] S1.1.1: Mix green grass, ryegrass, tall fescue, Vallisneria, and red fescue in equal proportions;

[0186] S1.1.2: Place the grass seeds in the soaking solution for 2 days, then take them out and drain them;

[0187] S1.1.3: Mix the soaked grass seeds with wet sand, spread them flat, and use a mixed light source for illumination for 12 hours a day, with the temperature maintained at 28°C and the humidity maintained at 75%, for 4 consecutive days;

[0188] S1.1.4: After screening, pre-treated grass seeds are obtained.

[0189] The mixing ratio of grass seeds to soaking liquid is 36g:300mL; the soaking liquid preparation method is:

[0190] S1.2.1: Pick the Forsythia suspensa leaves and dry them at 50°C for 10 hours;

[0191] S1.2.2: Grind the dried Forsythia suspensa leaves and pass them through an 80-mesh sieve to obtain Forsythia suspensa leaf powder;

[0192] S1.2.3: Weigh the Forsythia suspensa leaf powder, add it to the ethanol solution, adjust the temperature to 80°C, extract in a water bath for 4 hours, then cool naturally to room temperature, centrifuge for 10 minutes, and take the supernatant;

[0193] S1.2.4: drying the supernatant by rotary evaporation to obtain an extract;

[0194] S1.2.5: Add the extract to water, stir and mix evenly, then add growth hormone, disperse it by ultrasonication to obtain an immersion solution.

[0195] The mixing ratio of Forsythia suspensa leaf powder and ethanol solution is 43g:180mL; the mass fraction of the ethanol solution is 80%.

[0196] The centrifugal treatment speed is 8000 r / min; the mass ratio of the extract to water is 1:100; and the mass fraction of growth hormone in the soaking solution is 0.25%.

[0197] The mixed light source is used for illumination processing: a mixed light source with a ratio of red light: white light: purple light of 1:3:1 is used, and the total light intensity per second is 220 μmol / m 2 .

[0198] Wherein, the preparation method of the composite extract is:

[0199] S1.3.1: Crush corn stalks to obtain corn stalk powder;

[0200] S1.3.2: Burn corn stalk powder and collect ash;

[0201] S1.3.3: Mix wood ash and water in a mass ratio of 1:10, adjust the temperature to 75°C, keep warm and stir for 2 hours, then centrifuge at 5500r / min for 10min, take the supernatant and obtain the composite extract.

[0202] S2: Preparation of organic ecological matrix,

[0203] Add field soil, humus soil, organic fertilizer, pre-treated grass seeds, and composite extract into a blender in sequence, and stir and mix them evenly to obtain an organic ecological matrix;

[0204] S3: Slope cover,

[0205] The organic ecological matrix obtained in S2 is evenly covered on the slope surface to form an organic ecological matrix layer;

[0206] Among them, the average thickness of the organic ecological matrix layer is 3 cm;

[0207] S4: W-OH spraying: First, the W-OH material is mixed with water to dilute to a W-OH solution with a mass fraction of 2%. Then, the W-OH solution is evenly sprayed on the surface of the organic ecological matrix layer; the spraying amount of the W-OH solution is 1L / m 2 .

[0208] Wherein, nano additives are added into the W-OH solution, and the mass fraction of the nano additives is 1.2%.

[0209] Wherein, the preparation method of nano additive is:

[0210] S4.1.1: First, prepare a calcium hydroxide solution with a mass fraction of 5%, then add butyl titanate to the calcium hydroxide solution, disperse it ultrasonically for 15 minutes, then adjust the temperature to 25°C and keep it warm for 10 minutes, then introduce carbon dioxide into the calcium hydroxide solution until the pH of the system reaches 7 at the end of the reaction, and stop introducing carbon dioxide to obtain a slurry;

[0211] S4.1.2: The obtained slurry is subjected to rotary evaporation drying to obtain the nano-additive.

[0212] The mass ratio of butyl titanate to calcium hydroxide is 3:1; the flow rate of carbon dioxide is 2.5 L / min.

[0213] Comparative Example 1:

[0214] Based on the technical solution of Example 1, the grass seeds are not pretreated, and the rest of the technical solutions remain unchanged.

[0215] Comparative Example 2:

[0216] On the basis of the technical solution of Example 1, the mixed light source is not used for illumination processing, and the other technical solutions remain unchanged.

[0217] Comparative Example 3:

[0218] Based on the technical solution of Example 1, no nano additive is added to the W-OH solution, and the rest of the technical solutions remain unchanged.

[0219] The W-OH index parameters used are:

[0220] Table 1

[0221]

[0222] test:

[0223] By simulating the slope to detect the effects of the repaired slope in the embodiment and the comparative example, the size of the simulated slope is 4.5m*5.5m, the slope ratio is 0.85:1, and the slope surface is paved with slag, large stones, etc.

[0224] The test environment is open air;

[0225] The simulated slope was repaired by using the embodiment and the comparative method respectively, and the repair effects of each group were compared. Other environmental parameters and daily management were consistent. The test results are shown in Table 2 (refer to Figure 1 ):

[0226] Table 2

[0227]

[0228] It can be seen from Table 2 that the method of the present invention has a high effect on ecological restoration.

[0229] Taking Example 1 as the basic sample, the slope plant coverage rate at different times was counted;

[0230] Table 3

[0231]

[0232] It can be seen from Table 3 that, with the extension of time, the slope plant coverage rate of the method of the present invention continues to increase, and the ecological restoration effect is more significant.

[0233] Taking Example 1 as the basic sample, the effects of adding different nano-additive mass fractions on the plant coverage of each group after 60 days were compared:

[0234] Table 4

[0235]

[0236] It can be seen from Table 4 that the addition of different mass fractions of nano-additives has a certain effect on plant coverage.

[0237] The above are only preferred embodiments of the present invention, but the present invention is not limited to the scope of implementation shown. Any changes made according to the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the specification, should be within the protection scope of the present invention.

Claims

1. A method for ecological restoration of slopes with an anti-erosion organic ecological matrix layer based on W-OH, characterized in that: The following steps are involved: S1: Prepare materials, including by weight: 62-70 parts of field soil, 4-6 parts of humus soil, 1-2 parts of organic fertilizer, 0.01-0.02 parts of pretreated grass seeds, and 3-5 parts of composite extract; S2: preparing an organic ecological matrix, adding field soil, humus soil, organic fertilizer, pretreated grass seeds, and composite extract into a blender in sequence, stirring and mixing them evenly to obtain an organic ecological matrix; S3: Slope covering, the organic ecological matrix obtained in S2 is evenly covered on the slope surface to form an organic ecological matrix layer with an average thickness of 3-4 cm; S4: W-OH spraying: First, the W-OH material is mixed with water to dilute to a W-OH solution with a mass fraction of 2%-2.5%. Then, the W-OH solution is evenly sprayed on the surface of the organic ecological matrix layer. The spraying amount of the W-OH solution is 1-1.2L / m 2 .

2. The method for ecological restoration of slopes based on W-OH anti-erosion organic ecological matrix layer according to claim 1, characterized in that: The organic fertilizer in S1 is corroded pig manure, and the components of corroded pig manure are: organic matter content ≥46%, nitrogen, phosphorus and potassium content ≥5.5%, and moisture content ≤28%.

3. The method for ecological restoration of slopes based on W-OH anti-erosion organic ecological matrix layer according to claim 1, characterized in that: The preparation method of the pretreated grass seeds in S1 comprises the following steps: S1.1.1: Mix green grass, ryegrass, tall fescue, vallisneria, and red fescue in equal proportions; S1.1.2: Place the grass seeds obtained by mixing in S1.1.1 in the soaking solution for 2 days, then take them out and drain them; S1.1.3: Mix the soaked grass seeds with wet sand, spread them flat, and use a mixed light source for illumination. The illumination time is 10-12 hours per day, the temperature is maintained at 28-30℃, and the humidity is maintained at 75%, and the treatment is continued for 4 days; S1.1.4: After screening, pre-treated grass seeds are obtained.

4. The method for ecological restoration of slopes based on W-OH anti-erosion organic ecological matrix layer according to claim 3, characterized in that: The mixture ratio of grass seeds and soaking liquid in S1.1.2 is 30-40g:300mL, and the soaking liquid preparation method comprises the following steps: S1.2.1: Pick the Forsythia suspensa leaves and dry them at 50°C for 10 hours; S1.2.2: Grind the dried Forsythia suspensa leaves and pass them through an 80-mesh sieve to obtain Forsythia suspensa leaf powder; S1.2.3: Weigh the Forsythia suspensa leaf powder, add it to the ethanol solution, adjust the temperature to 80°C, extract in a water bath for 4 hours, then cool naturally to room temperature, centrifuge for 10 minutes, and take the supernatant; S1.2.4: drying the supernatant by rotary evaporation to obtain an extract; S1.2.5: Add the extract to water, stir and mix evenly, then add growth hormone, disperse it by ultrasonication to obtain an immersion solution.

5. The method for ecological restoration of slopes based on W-OH anti-erosion organic ecological matrix layer according to claim 4, characterized in that: In S1.2.3, the mixing ratio of Forsythia suspensa leaf powder and ethanol solution is 40-45 g:180 mL, and the mass fraction of ethanol solution is 80%.

6. The method for ecological restoration of slopes based on W-OH anti-erosion organic ecological matrix layer according to claim 5, characterized in that: The centrifugal treatment speed in S1.2.3 is 8000r / min, the mixing mass ratio of the extract and water in S1.2.5 is 1:100, and the mass fraction of growth hormone in the soaking liquid is 0.25%.

7. The method for ecological restoration of slopes using an anti-corrosion organic ecological matrix layer based on W-OH as claimed in claim 3, characterized in that: The mixed light source for illumination treatment is: a mixed light source with a ratio of red light: white light: purple light of 1:3:1, and a total light intensity of 220 μmol / m per second. 2 .

8. The method for ecological restoration of slopes using an anti-corrosion organic ecological matrix layer based on W-OH as claimed in claim 1, characterized in that: The preparation method of the composite extract in S1 comprises the following steps: S1.3.1: Crush corn stalks to obtain corn stalk powder; S1.3.2: Burn corn stalk powder and collect ash; S1.3.3: Mix wood ash and water in a mass ratio of 1:10, adjust the temperature to 75°C, keep warm and stir for 2 hours, then centrifuge at 5500r / min for 10min, take the supernatant and obtain the composite extract.

9. The method for ecological restoration of slopes using an anti-corrosion organic ecological matrix layer based on W-OH as claimed in claim 1, characterized in that: Nano additives are added into the W-OH solution, and the mass fraction of the nano additives is 1.2%-1.3%.

10. The method for ecological restoration of slopes based on W-OH anti-erosion organic ecological matrix layer according to claim 9, characterized in that: The method for preparing the nano additive comprises the following steps: S4.1.1: First, prepare a calcium hydroxide solution with a mass fraction of 5%, then add butyl titanate to the calcium hydroxide solution, disperse it ultrasonically for 15 minutes, then adjust the temperature to 25°C and keep it warm for 10 minutes, then introduce carbon dioxide into the calcium hydroxide solution until the pH of the system reaches 7 at the end of the reaction, and stop introducing carbon dioxide to obtain a slurry; S4.1.2: performing rotary evaporation drying on the obtained slurry to obtain the nano additive; The mass ratio of butyl titanate to calcium hydroxide is 3:1, and the flow rate of carbon dioxide is 2.5 L / min.

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