CN114128589B - Marine organism spray seeding matrix for slope protection and implementation process thereof - Google Patents
Marine organism spray seeding matrix for slope protection and implementation process thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
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- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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- A—HUMAN NECESSITIES
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- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
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- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
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- A01G24/23—Wood, e.g. wood chips or sawdust
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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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- A01G24/25—Dry fruit hulls or husks, e.g. chaff or coir
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- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
- A01G24/35—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds containing water-absorbing polymers
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- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
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- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/70—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting wettability, e.g. drying agents
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
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Abstract
The invention discloses a marine organism spray seeding matrix for slope protection and an implementation process thereof, wherein the marine organism spray seeding matrix comprises the following components in parts by weight: 20-25 parts of soil, 20-25 parts of shell powder, 5-10 parts of seaweed-based biochar, 10-15 parts of black soldier fly sand, 10-15 parts of bulking fiber, 2-6 parts of soil conditioner, 8-10 parts of slow-release compound fertilizer and 0.05-0.7 part of plant seed. Most of the raw materials of the adopted substrate are from solid wastes in agricultural production and domestic solid wastes, and the solid wastes are recycled by finely processing the wastes, wherein the shell powder and the hermetia illucens sand contain various probiotics, so that the construction of a soil microbial ecological system can be accelerated.
Description
Technical Field
The invention belongs to the technical field of slope ecological protection, and particularly relates to a marine organism spray-seeding matrix for slope protection and an implementation process thereof.
Background
At present, along with the high-speed development of the economic society in China, the requirements of people on living environments are higher and higher, and particularly after the number of the green mountain is Jin Shanyin mountain is put forward, a large number of bare mountain bodies and mine management projects are developed in various places, wherein ecological spray seeding is the most commonly used and adaptive technology.
At present, two main substrates are used for ecological spray seeding, namely vegetation concrete technology and CS mixed fiber technology with high-order granules as binders. The former adds cement and fungicide into soil, and uses cement as binder to implement greening, but adopts ordinary Portland cement as gel material vegetation concrete technique, and has no concrete alkali-reducing technique, so that the matrix is salinized for a long time, soil structure is poor, vegetation degradation is serious; the latter adopts polyacrylamide, emulsified asphalt and other materials as adhesive, but the polymer materials are dissolved in water and run off with rain wash after spray seeding, so that the substrate loses cohesiveness; the polymer material has no environmental friendliness and causes secondary pollution.
On the other hand, with global climate change and frequent extreme weather, the existing soil-alien spraying technology cannot adapt to the current climate and weather conditions, and under the conditions of extreme precipitation and extreme air temperature, slope collapse and serious vegetation degradation occur.
In order to solve the three outstanding problems, an environment-friendly spray-seeding matrix special for slope protection is researched, so that plants can grow on a slope surface, and meanwhile, the spray-seeding matrix has extremely excellent anti-scouring performance and can adapt to frequent extreme weather phenomena.
Disclosure of Invention
In order to overcome three outstanding problems in the prior art, one of the purposes of the invention is to provide a novel marine organism spray-seeding matrix for slope protection, which has good cohesiveness and strong anti-scouring capability; the soil structure is good, the plant growth is facilitated, and the rapid greening of the side slope can be realized; adopts various marine agricultural wastes and realizes the recycling of solid wastes.
The second purpose of the invention is to provide a perfect construction process adopting a new nutrition matrix formula, thereby ensuring the greening effect of the side slope and saving maintenance time and cost. The construction process solves the demands for water and fertilizer in the plant growth process by spraying two layers of nutrient matrixes and adding a rainwater collection and slow release system, ensures that vegetation thrives, and has good application prospect.
In order to achieve one of the purposes, the invention adopts the following modes:
the marine organism spray seeding matrix for slope protection comprises the following components in parts by weight: 20-25 parts of soil, 20-25 parts of shell powder, 5-10 parts of seaweed-based biochar, 10-15 parts of black soldier fly sand, 10-15 parts of bulking fiber, 2-6 parts of soil conditioner, 8-10 parts of slow-release compound fertilizer and 0.05-0.7 part of plant seed.
Further, the shell powder is prepared by crushing common shells after washing and desanding, and the salt content is not more than 0.005%, and comprises 3 parts of shell powder with the particle size of 5-10mm, 3 parts of shell powder with the particle size of 2.5-5mm, 3 parts of shell powder with the particle size of 0.15-0.5mm and 1 part of shell powder with the particle size of 0.08-0.15mm by weight.
Further, the seaweed-based biochar is prepared by cleaning and desanding kelp production waste, and then pyrolyzing the kelp production waste at 550 ℃ for 2 hours.
Further, the black soldier fly sand is prepared by decomposing, drying and crushing the insect sand obtained after the kitchen waste is treated by the black soldier fly larvae, and the particle size of the insect sand is 0.08-0.25mm.
Further, the puffed fiber is formed by extruding and puffing peanut shells, corn stalks and pine wood in a double shaft manner, wherein the puffed fiber comprises 2 parts of peanut shells, 2 parts of corn stalks and 0.5 part of pine wood by weight.
Further, the soil conditioner comprises the following components by weight: 4 parts of re-burned magnesia powder, 1 part of triterpenoid saponin, 0.05 part of methacryloyl sodium alginate and 1 part of composite microbial inoculum.
Further, the composite microbial inoculum is composed of 1 part of bacillus megaterium microbial inoculum, 10 parts of bacillus amyloliquefaciens microbial inoculum and 20 parts of trichoderma harzianum microbial inoculum according to the number of viable bacteria.
Further, the slow-release compound fertilizer comprises the following components in parts by weight: 10 parts of seaweed-based biochar, 20 parts of monopotassium phosphate, 10 parts of sodium bentonite, 5 parts of ammonium polyphosphate, 5 parts of super absorbent resin and 0.05 part of potassium polyacrylate.
Further, the super absorbent resin is sodium polyacrylate with the polymerization degree of 500, and the water absorption rate is 110-120 times.
Further, the preparation method of the slow-release compound fertilizer comprises the following steps:
s1: fully mixing seaweed-based biochar, monopotassium phosphate, ammonium polyphosphate, sodium bentonite and super absorbent resin powder;
s2: dissolving potassium polyacrylate in water to prepare a solution with the concentration of 0.01 g/L;
s3: uniformly spraying a potassium polyacrylate solution onto mixed powder of seaweed-based biochar, potassium dihydrogen phosphate, ammonium polyphosphate, sodium bentonite and super absorbent resin, and vibrating while spraying until the powder is bonded to form spherical particles;
s4: and (5) drying the spherical particles to obtain the slow-release compound fertilizer.
Further, the super absorbent resin is sodium polyacrylate with the polymerization degree of 500, and the water absorption coefficient is 110-150.
Further, the plant seeds are one or more of ryegrass, bermuda grass, dwarf lilyturf tuber, asparagus root, gardenia, lespedeza, basil, rosemary, licorice, amorpha fruticosa, field pea and aster.
In order to achieve the second purpose, the invention adopts the following modes:
the invention relates to a construction method of marine organism spray-seeding matrix for slope protection, which comprises the following steps:
a1: preparing a matrix: adding gravel, shell powder, seaweed-based biochar, black soldier fly sand, bulking fibers and soil conditioner into water according to the proportion, stirring until foaming, adding a slow-release compound fertilizer according to the proportion, and uniformly stirring to obtain the marine organism spray-seeding matrix for slope protection.
A2: slope finishing: judging the lithology and the weathering degree of the slope, providing parameters for the length and the distance of the anchor rods through stability analysis, and simultaneously designing a pavement to prepare for sightseeing and picking functions.
A3: and (3) arranging a slope rainwater collecting and slow-release device: the rainwater collecting and slow-releasing device mainly comprises a slope top water storage pool, a slope bottom water storage pool, a slope micro-wetting slow-releasing pipe, a filtering well and a water pump.
A4: slope net hanging and anchor rod construction: the net sheet adopts a metal net sheet or a geosynthetic net sheet; and a metal net sheet is adopted for the slope with steeper gradient and poorer stability.
A5: marine organism spray-seeding matrix spray-seeding for slope protection: spraying is carried out in the daytime of sunny weather; the spraying of marine organism spraying matrix for slope protection is mainly divided into two layers: a base layer and a seed layer; the base layer contains no seeds, and adopts a dry spraying method, and the thickness is 10 cm to 15cm; 15 minutes after the construction of the base layer is completed, then the construction of the seed layer is carried out; the seed layer contains seeds, and has a thickness of 6-8cm by wet spraying.
A6: setting a slope drainage system: and (5) building a water intercepting ditch and a water diversion ditch, and collecting redundant water around the slope body in a slope bottom reservoir.
A7: and (3) post-curing: the later maintenance mainly comprises non-woven fabric covering, watering, fertilization and pest control.
Compared with the prior art, the invention has the beneficial effects that:
1. most of the raw materials of the matrix adopted by the invention come from agricultural production solid waste and domestic solid waste, and the solid waste is recycled by finely processing the waste. Wherein, the shell powder and the hermetia illucens sand contain various probiotics, which can accelerate the construction of a soil microbial ecological system.
2. The cementing material of the matrix adopted by the invention is methyl acrylated sodium alginate, and struvite formed by the reaction of ammonium polyphosphate and monopotassium phosphate in the slow release fertilizer and magnesium oxide in the soil conditioner. The former is a photo-curing resin which is quickly coagulated after being irradiated by light, and can be combined with bentonite to form a layer of crust on the surface of the matrix, so that the anti-scouring property of the matrix before vegetation is formed is ensured. The latter is used as a cementing material to ensure the stability of the slope before vegetation is formed, and is used as a long-acting phosphate fertilizer after vegetation is formed to promote plant growth.
3. The microbial agent is doped in the matrix adopted by the invention, and the microbial community is introduced, so that the primary microorganisms in the soil are better excited, and the nutrient matrix is effectively bonded through the bonding matters generated by microbial metabolism without obviously reducing the pores of the soil, so that the air permeability and the tackiness of the soil are effectively ensured. Wherein, the bacillus megaterium can effectively decompose struvite and promote nutrient release; bacillus amyloliquefaciens colonizes plant root bases to promote nutrient absorption by plants; trichoderma harzianum inhibits the growth of pathogenic bacteria by means of competition and antagonism, thereby avoiding diseases: thereby reducing the cost brought by water and fertilizer supply and disease control in the later maintenance.
4. The puffed fiber adopted in the matrix has long and thin shape but has strength, and the reinforcement effect is achieved on the premise of ensuring the growth of plants, wherein the doped fiber can effectively improve the scouring capacity of slope nutrient matrix by rain water and the like. And the bacillus amyloliquefaciens can promote degradation of the bacillus amyloliquefaciens and provide nutrients for plant growth. Meanwhile, the consumption of pioneer grass can be reduced, and the shading effect of grass seedlings on the growth of shrubs is avoided. The whole soil environment with loose ventilation is provided for plant growth, plant seed germination, microbial activity and nutrition matrix transformation are facilitated, and the soil-fixing greening effect of the later-stage vegetation is exerted.
5. The matrix adopted by the invention adopts particles with different particle sizes, has reasonable particle proportion, is matched with super absorbent resin and bentonite for use, and obviously improves the porosity and water storage capacity of the matrix. The construction technology adopted by the invention is based on the traditional technology, and a rainwater collection and slow release system is added. The two are combined with each other, so that the efficient water saving is realized on the basis of ensuring the stability of the slope and the good growth of vegetation, and the curing time and the curing cost are effectively reduced.
6. The plant type of the matrix adopted by the invention is different from other technologies, the economic crops and the medicinal plants are selected, and on the basis of ecological restoration, the ecological service value of the restored area is improved, so that higher economic benefits are generated.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the embodiments of the present invention, it being apparent that the embodiments described are only some, but not all, of the embodiments of the present invention. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on the embodiments of the present invention, are within the scope of the present invention.
Example 1:
the preparation of the slow-release compound fertilizer of the invention;
the slow-release compound fertilizer comprises the following components in parts by weight: 10 parts of seaweed-based biochar, 20 parts of monopotassium phosphate, 5 parts of ammonium polyphosphate, 10 parts of sodium bentonite, 5 parts of super absorbent resin and 0.05 part of potassium polyacrylate, wherein the super absorbent resin is sodium polyacrylate with the polymerization degree of 500, and the water absorption rate is 110-120 times.
The preparation method of the compound fertilizer comprises the following steps:
s1: fully mixing seaweed-based biochar, monopotassium phosphate, ammonium polyphosphate, sodium bentonite and super absorbent resin powder.
S2: potassium polyacrylate is dissolved in water to prepare a solution with the concentration of 0.01 g/L.
S3: uniformly spraying the potassium polyacrylate solution onto the mixed powder of seaweed-based biochar, potassium dihydrogen phosphate, sodium bentonite and super absorbent resin, and vibrating while spraying until the powder is bonded to form spherical particles.
S4: and (5) drying the spherical particles to obtain the slow-release compound fertilizer.
Example 2:
the preparation of the soil conditioner;
the soil conditioner comprises the following components in parts by weight: 4 parts of re-burned magnesium oxide powder, 1 part of triterpenoid saponin, 0.05 part of methacryloyl sodium alginate and 1 part of composite microbial agent, wherein the composite microbial agent comprises 1 part of bacillus megaterium microbial agent, 10 parts of bacillus amyloliquefaciens microbial agent and 20 parts of trichoderma harzianum microbial agent according to the number of viable bacteria.
The materials were mixed in the above proportions.
Example 3:
the invention provides a preparation method of marine organism spray seeding matrix for slope protection on the basis of an embodiment 1 and an embodiment 2, which comprises the following steps:
the marine organism spray seeding matrix for slope protection comprises the following components in parts by weight: 20-25 parts of soil, 20-25 parts of shell powder, 5-10 parts of seaweed-based biochar, 10-15 parts of black soldier fly sand, 10-15 parts of puffed fiber, 2-6 parts of soil regulator, 8-10 parts of slow release compound fertilizer and 0.05-0.7 part of plant seeds, wherein the shell powder is prepared by washing common shells, desanding and crushing, the salt content is not more than 0.005%, 3 parts of shell powder with the weight of 5-10mm, 3 parts of shell powder with the weight of 2.5-5mm, 3 parts of shell powder with the weight of 0.15-0.5mm and 1 part of shell powder with the weight of 0.08-0.15mm are contained, the seaweed-based biochar is prepared by washing kelp production waste, desanding for 2 hours at 550 ℃, the black soldier fly sand obtained by treating kitchen waste with black soldier fly larvae is prepared by decomposing, drying and crushing, the particle size of 0.08-0.25mm, the puffed fiber is prepared by biaxial extrusion of peanut shell, corn straw and pine wood, and the puffed fiber is prepared by puffing peanut shell, corn straw and pine wood, wherein the seaweed-based on 2 parts by weight of 2, 2.5 and 0.5 parts of corn straw are contained in parts by weight of corn
Adding gravel, shell powder, seaweed-based biochar, black soldier fly sand, bulking fibers and soil conditioner into water according to the proportion, stirring until foaming, adding a slow-release compound fertilizer, and uniformly stirring to obtain the marine organism spray-seeding matrix for slope protection.
Example 4:
the invention provides a construction process of marine organism spray-seeding matrix for slope protection on the basis of an embodiment 1, an embodiment 2 and an embodiment 3, which comprises the following steps:
a1: preparing a matrix: adding gravel, shell powder, seaweed-based biochar, black soldier fly sand, bulking fibers and soil conditioner into water according to the proportion, stirring until foaming, adding a slow-release compound fertilizer, and uniformly stirring to obtain the marine organism spray-seeding matrix for slope protection.
A2: slope finishing: judging the lithology and the weathering degree of the slope, and providing parameters for the length and the distance of the anchor rods through stability analysis.
A3: and (3) arranging a slope rainwater collecting and slow-release device: the rainwater collecting and slow-releasing device mainly comprises a slope top water storage pool, a slope bottom water storage pool, a slope micro-wetting slow-releasing pipe, a filtering well and a water pump.
A4: slope net hanging and anchor rod construction: the net sheet adopts a metal net sheet or a geosynthetic net sheet; and a metal net sheet is adopted for the slope with steeper gradient and poorer stability.
A5: marine organism spray-seeding matrix spray-seeding for slope protection: spraying is carried out in the daytime of sunny weather; the spraying of marine organism spraying matrix for slope protection is mainly divided into two layers: a base layer and a seed layer; the base layer contains no seeds, and adopts a dry spraying method, and the thickness is 10 cm to 15cm; 15 minutes after the construction of the base layer is completed, then the construction of the seed layer is carried out; the seed layer contains seeds, and has a thickness of 6-8cm by wet spraying.
A6: setting a slope drainage system: and (5) building a water intercepting ditch and a water diversion ditch, and collecting redundant water around the slope body in a slope bottom reservoir.
A7: and (3) post-curing: the later maintenance mainly comprises non-woven fabric covering, watering, fertilization and pest control.
The working principle and the using flow of the invention are as follows: most of the raw materials of the substrate adopted by the invention are from solid wastes in agricultural production and domestic solid wastes, and the recycling of the solid wastes is realized by finely processing the wastes, wherein the shell powder and the hermetia illucens sand contain various probiotics, so that the construction of a soil microbial ecological system can be accelerated; the cementing material of the matrix adopted by the invention is the methacryloyl sodium alginate, ammonium polyphosphate and monopotassium phosphate in the slow release fertilizer react with magnesium oxide in the soil conditioner to form struvite, the struvite is a photo-curing resin, and the photo-curing resin is quickly coagulated after being illuminated, and can be combined with bentonite to form a layer of crust on the surface of the matrix, so that the scouring resistance of the matrix before vegetation is formed is ensured, the cementing material is used as a cementing material, the stability of a slope is ensured before vegetation is formed, and the cementing material is used as a long-acting phosphate fertilizer after vegetation is formed, so that the growth of plants is promoted; the microbial agent is doped in the matrix adopted by the invention, a microbial community is introduced, so that primary microorganisms in soil are better excited, the nutrient matrix is effectively bonded through the bonding matters generated by microbial metabolism without obviously reducing the pores of the soil, the air permeability and the tackiness of the soil are effectively ensured, wherein bacillus megaterium can effectively decompose struvite, promote nutrient release, the bacillus amyloliquefaciens colonizes at plant roots, promote nutrient absorption by plants, and trichoderma harzianum inhibits the growth of pathogenic bacteria in a competitive and antagonistic mode, thereby avoiding diseases, and further reducing the cost brought by water and fertilizer supply and disease control in later maintenance; the puffed fiber adopted in the matrix has the strength, the reinforcement effect is achieved on the premise of ensuring the plant growth, the doped fiber can effectively improve the scouring capacity of slope nutrient matrix by rain and the like, the bacillus amyloliquefaciens can promote the degradation of the slope nutrient matrix and provide nutrients for the plant growth, meanwhile, the consumption of pioneer grass can be reduced, the shading effect of grass seedlings on the growth of shrubs is avoided, loose and ventilated soil environment is integrally provided for the plant growth, the germination of plant seeds, the microbial activity and the transformation of nutrient matrix are facilitated, and the soil-fixing greening effect of later-stage vegetation is exerted; the substrate adopted by the invention selects particles with different particle diameters, the particle proportion is reasonable, the super absorbent resin and bentonite are matched for use, the porosity and water storage capacity of the substrate are obviously improved, the rainwater collection and slow release system is added on the basis of the traditional process by adopting the construction process, and the two are combined with each other, so that the efficient water saving is realized on the basis of ensuring the stability of a slope body and the good growth of vegetation, and the curing time and the curing cost are effectively reduced; the plant type selection of the matrix adopted by the invention is different from other technologies, the economic crops and the medicinal plants are selected, and on the basis of ecological restoration, the ecological service value of the restored area is improved, so that higher economic benefits are generated.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The marine organism spray seeding matrix for slope protection is characterized by comprising the following components in parts by weight: 20-25 parts of soil, 20-25 parts of shell powder, 5-10 parts of seaweed-based biochar, 10-15 parts of black soldier fly sand, 10-15 parts of bulking fiber, 2-6 parts of soil conditioner, 8-10 parts of slow-release compound fertilizer and 0.05-0.7 part of plant seeds, wherein the slow-release compound fertilizer comprises the following components in parts by weight: 10 parts of seaweed-based biochar, 20 parts of monopotassium phosphate, 5 parts of ammonium polyphosphate, 10 parts of sodium bentonite, 5 parts of super absorbent resin and 0.05 part of potassium polyacrylate; the soil conditioner comprises the following components in parts by weight: 4 parts of re-burned magnesium oxide powder, 1 part of triterpenoid saponin, 0.05 part of methacryloyl sodium alginate and 1 part of composite microbial agent, wherein the composite microbial agent comprises 1 part of bacillus megaterium microbial agent, 10 parts of bacillus amyloliquefaciens microbial agent and 20 parts of trichoderma harzianum microbial agent according to the number of viable bacteria;
the preparation method of the slow-release compound fertilizer comprises the following steps:
s1: fully mixing seaweed-based biochar, monopotassium phosphate, ammonium polyphosphate, sodium bentonite and super absorbent resin powder;
s2: dissolving potassium polyacrylate in water to prepare a solution with the concentration of 0.01 g/L;
s3: uniformly spraying a potassium polyacrylate solution onto mixed powder of seaweed-based biochar, potassium dihydrogen phosphate, sodium bentonite and super absorbent resin, and vibrating while spraying until the powder is bonded to form spherical particles;
s4: and (5) drying the spherical particles to obtain the slow-release compound fertilizer.
2. A marine organism spray seeding substrate for slope protection according to claim 1, wherein: the shell powder is prepared by crushing common shells after washing and desanding, and contains less than 0.005% of salt, and comprises 3 parts of shell powder with the particle size of 5-10mm, 3 parts of shell powder with the particle size of 2.5-5mm, 3 parts of shell powder with the particle size of 0.15-0.5mm and 1 part of shell powder with the particle size of 0.08-0.15mm by weight.
3. A marine organism spray seeding substrate for slope protection according to claim 1, wherein: the seaweed-based biochar is prepared by cleaning kelp production waste, removing sand and then pyrolyzing at 550 ℃ for 2 hours.
4. A marine organism spray seeding substrate for slope protection according to claim 1, wherein: the black soldier fly sand is prepared by decomposing, drying and crushing the insect sand obtained after treating kitchen waste by using black soldier fly larvae, and the particle size of the black soldier fly sand is 0.08-0.25mm.
5. A marine organism spray seeding substrate for slope protection according to claim 1, wherein: the puffed fiber is formed by extruding and puffing peanut shells, corn straws and pine wood in a double shaft manner, wherein the puffed fiber comprises 2 parts of peanut shells, 2 parts of corn straws and 0.5 part of pine wood by weight.
6. A marine organism spray seeding substrate for slope protection according to claim 1, wherein: the super absorbent resin is sodium polyacrylate with the polymerization degree of 500, and the water absorption rate is 110-120 times.
7. A marine organism spray seeding substrate for slope protection according to claim 1, wherein: the plant seed is one or more of ryegrass, bermuda grass, dwarf lilyturf tuber, asparagus root, gardenia, lespedeza, basil, rosemary, licorice, amorpha fruticosa, field pea and aster.
8. A method for preparing marine organism spray seeding matrix for slope protection by using the method according to any one of claims 1-7, which is characterized in that: the method comprises the following steps: adding soil, shell powder, seaweed-based biochar, black soldier fly sand, bulking fibers and a soil conditioner into water according to the proportion, stirring until foaming, adding a slow-release compound fertilizer, and uniformly stirring to obtain the marine organism spray-seeding matrix for slope protection.
9. A construction process using the marine organism spray seeding matrix for slope protection as set forth in any one of claims 1 to 7, which is characterized in that: the method comprises the following steps:
a1: preparing a matrix: adding soil, shell powder, seaweed-based biochar, black soldier fly sand, bulking fibers and a soil conditioner into water according to the proportion, stirring until foaming, adding a slow-release compound fertilizer, and uniformly stirring to obtain a marine organism spray-seeding matrix for slope protection;
a2: slope finishing: judging the lithology and the weathering degree of the slope, and providing parameters for the length and the interval of the anchor rods through stability analysis;
a3: and (3) arranging a slope rainwater collecting and slow-release device: the rainwater collecting and slow-releasing device comprises a slope top water storage pool, a slope bottom water storage pool, a slope micro-wetting slow-releasing pipe, a filter well and a water pump;
a4: slope net hanging and anchor rod construction: the net sheet adopts a metal net sheet or a geosynthetic net sheet; a metal net sheet is adopted for the slope with steeper gradient and poorer stability;
a5: marine organism spray-seeding matrix spray-seeding for slope protection: spraying is carried out in the daytime of sunny weather; the spraying of marine organism spraying matrix for slope protection is mainly divided into two layers: a base layer and a seed layer; the base layer contains no seeds, and adopts a dry spraying method, and the thickness is 10 cm to 15cm; 15 minutes after the construction of the base layer is completed, then the construction of the seed layer is carried out; the seed layer contains seeds, and the thickness is 6-8cm by wet spraying;
a6: setting a slope drainage system: building a water intercepting ditch and a water diversion ditch, and collecting redundant water around the slope body into a slope bottom reservoir;
a7: and (3) post-curing: and the later maintenance comprises non-woven fabric covering, watering, fertilization and pest control.
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| CN114656240A (en) * | 2022-04-27 | 2022-06-24 | 烟台三维岩土工程技术有限公司 | Microbial phosphate concrete for slope greening and preparation method thereof |
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| CN106719451A (en) * | 2016-12-19 | 2017-05-31 | 江苏大学 | A kind of method that changing food waste into resources treatment is carried out using black soldier flies |
| CN109328517A (en) * | 2018-08-15 | 2019-02-15 | 江苏绿岩生态技术股份有限公司 | A method of plant on sand land is carried out using class loam matrix spray seeding technique |
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