CN114622534B - Water-retaining material for preventing water and soil loss and preparation method thereof - Google Patents
Water-retaining material for preventing water and soil loss and preparation method thereof Download PDFInfo
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- CN114622534B CN114622534B CN202210282515.XA CN202210282515A CN114622534B CN 114622534 B CN114622534 B CN 114622534B CN 202210282515 A CN202210282515 A CN 202210282515A CN 114622534 B CN114622534 B CN 114622534B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
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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
- A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
- A01G20/20—Cultivation on mats
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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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- 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
- A01G24/17—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing slag
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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
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
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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
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
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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
- A01G24/40—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure
- A01G24/44—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure in block, mat or sheet form
- A01G24/46—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure in block, mat or sheet form multi-layered
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Soil Sciences (AREA)
- Structural Engineering (AREA)
- Pest Control & Pesticides (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a water-retaining material for preventing water and soil loss and a preparation method thereof, and belongs to the technical field of water and soil conservation. The water-retaining material comprises an upper layer and a lower layer, wherein the upper layer is a degradable material net, the lower layer is a reverse filtering layer, the upper layer and the lower layer are connected through an adhesive layer, and the reverse filtering layer consists of composite inorganic spheres. The preparation method comprises the following steps: weighing straw fiber, ceramic, fly ash, organic fertilizer, super absorbent resin, seeds and quartz sand, mixing and granulating to prepare a composite inorganic sphere; cutting the degradable material net, brushing an adhesive layer on the surface layer of the degradable material net, paving the composite inorganic spheres on the surface of the adhesive layer, and naturally drying to obtain the water-retaining material for preventing water and soil loss. The water-retaining material is square, can be paved and spliced when in use, is convenient and quick, is suitable for large-area operation and construction, has wide sources of raw materials, is simple in preparation process, and has remarkable effect on water and soil loss treatment.
Description
Technical Field
The invention relates to a water-retaining material for preventing water and soil loss and a preparation method thereof, belonging to the technical field of water and soil conservation.
Background
Soil erosion refers to the natural reasons of soil erosion due to the effects of water infiltration and impact, such as broken and loose soil structure, concentrated gradient, heavy storm, loose earth surface, sparse vegetation and the like, and along with the development of economy and society, improper actions such as forest disuse, steep slope downhill reclamation, overload overpasture, blind land expansion, abusing and felling, development and construction and the like are artificial reasons for soil erosion. Soil fertility is reduced due to water and soil loss, and environmental quality is reduced and ecological balance is disturbed, so that improvement of water and soil loss is urgent.
At present, the main attack direction for treating water and soil loss is to treat and reform sloping farmland according to the current situation, and the ecological self-restoration of water and soil conservation is completed by utilizing the self-restoration function of the nature. The ecological self-restoration capability is a main method for maintaining ecological construction, and by means of ecological self-restoration, vegetation restoration can be promoted, ecological environment is improved, water and soil loss prevention and control steps are quickened, but vegetation is restored by means of ecological self-restoration capability only, and the defect of slow treatment process of ecology is overcome. The soil and stone engineering is manually implemented to strengthen the areas with serious water and soil loss by methods such as slope protection, retaining wall, nailing piles and the like, but the soil and stone engineering has the characteristics of quick response, obvious effect, large investment and labor investment. Therefore, it is necessary to provide a new material which is simple and easy to popularize and is used for preventing and controlling water and soil loss.
Disclosure of Invention
In order to solve the technical problems and solve the problem of serious water and soil loss, the invention provides the water retention material for preventing water and soil loss and the preparation method thereof, and the water retention material is paved in the water and soil loss area so as to achieve the purpose of simply, conveniently and rapidly improving the water and soil loss.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a water-retaining material for preventing soil erosion, which comprises an upper layer and a lower layer, wherein the upper layer is a degradable material net, the lower layer is a reverse filtering layer, the upper layer and the lower layer are connected through an adhesive layer, and the reverse filtering layer consists of composite inorganic spheres.
Further, the degradable material net is a degradable PLA net or a degradable PP net, the mesh aperture of the degradable material net is 3-5 mm, and the thickness is 0.15-1 mm.
Further, the adhesive layer is guar gum, carrageenan or konjak gum, and the thickness is 0.2mm.
Further, the particle size of the composite inorganic sphere is 0.5-1 cm, and the composite inorganic sphere comprises the following raw materials in parts by weight: 15-20 parts of straw fiber, 5-18 parts of ceramic, 5-10 parts of fly ash, 3-6 parts of organic fertilizer, 10-12 parts of super absorbent resin, 5-8 parts of seed and 3-7 parts of quartz sand.
Further, the length of the straw fiber is 4-5 mm, the mesh number of the ceramic and quartz sand is 100-150, and the organic fertilizer is nitrogen, phosphorus and potassium fertilizer.
Further, the seeds are one or more of sweet clover seeds, leymus chinensis seeds, sand-grown agropyron cristatum seeds or elymus chinensis seeds, the plants are perennial herbs, the growing period is long, the main roots are short after planting, the lateral roots and fibrous roots are developed, the adaptability is wide, the seeds can grow in various soils, and the seeds have drought resistance and cold resistance and good ecological value.
Further, the dosage of the composite inorganic spheres is 100-120 grains/m 2 。
The invention also provides a preparation method of the water-retaining material for preventing water and soil loss, which comprises the following steps:
(1) Weighing straw fiber, ceramic, fly ash, organic fertilizer, super absorbent resin, seeds and quartz sand according to the weight parts, mixing and granulating to prepare a composite inorganic sphere;
(2) Cutting a degradable material net, brushing an adhesive layer on the surface layer of the degradable material net, uniformly paving the composite inorganic spheres prepared in the step (1) on the surface of the adhesive layer according to the dosage, and naturally drying to obtain the water-retaining material for preventing water and soil loss.
Further, in the step (2), the degradable material net is cut into square shapes and can be cut into corresponding sizes according to actual conditions.
The invention discloses the following technical effects:
1) The water retention material consists of an upper layer and a lower layer, wherein the upper layer is a degradable PLA (polylactic acid) net or a degradable PP (polypropylene) net, and the degradable material net can directly play a role in fixing soil loss in the early stage of laying the water retention material and can be completely degraded in the later stage of laying, so that no pollution is caused to the soil. The lower layer is a composite inorganic sphere, the sphere contains longer straw fibers, and the surface of the sphere can form contact feet with a ground grabbing effect through mixing and granulating, so that the adhesive force of the water-retaining material to soil can be enhanced, and the damage caused by heavy rain and strong wind can be reduced; the ceramic and the fly ash have rich porous structures, have the function of adsorbing water in soil, and can adsorb non-point source pollutants in the soil at the same time, so that seeds in the composite inorganic spheres grow healthily; the super absorbent resin can play a role in storing water and preserving water on one hand, and plays a role in an adhesive in the granulating process on the other hand; in addition, the composite inorganic spheres also contain organic fertilizer and plant seeds, so that the water-retaining material can play a role in fixing soil moisture and preventing and controlling water and soil loss, and simultaneously quickly restore the ecological environment of the water and soil loss area. The adhesive layer is a biological adhesive, belongs to a high polymer, has a strong cohesive effect, can increase the infiltration rate of soil, prevents water and soil loss, and has good performance of inhibiting soil moisture evaporation.
2) The water-retaining material can be cut into squares, the size of the water-retaining material can be changed according to specific environments, the use process can be completed only by simple paving and splicing, the water-retaining material is fast, convenient and quick, and is suitable for large-area operation and construction, the sources of the raw materials of the water-retaining material are wide, the preparation process is simple, and the water-retaining material has remarkable effects on water and soil loss treatment.
Detailed Description
Various exemplary embodiments of the invention will now be described in detail, which should not be considered as limiting the invention, but rather as more detailed descriptions of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In addition, for numerical ranges in this disclosure, it is understood that each intermediate value between the upper and lower limits of the ranges is also specifically disclosed. Every smaller range between any stated value or stated range, and any other stated value or intermediate value within the stated range, is also encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the invention described herein without departing from the scope or spirit of the invention. Other embodiments will be apparent to those skilled in the art from consideration of the specification of the present invention. The specification and examples of the present invention are exemplary only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are intended to be inclusive and mean an inclusion, but not limited to.
The raw materials used in the embodiment of the invention can be purchased through the market, wherein a degradable material net (a degradable PLA net or a degradable PP net) is purchased from Nanjing national plastic basic equipment Co., ltd, guar gum, carrageenan or konjak gum is purchased from Shanghai Gao Rui biotechnology Co., ltd, seeds (sweet clover seeds, chinese forest seeds, sand-grown wheatgrass seeds and grass seeds) are purchased from Huasheng seed industry, and the organic fertilizer is sheep manure fermented organic fertilizer and is purchased from Shijingning Yi technology Co., ltd.
The inclined mixing granulator used in the examples of the present invention was purchased from Qingdao Kenile mechanical equipment Co.
The technical scheme of the invention is further described by the following examples.
Example 1
(1) Crushing straw fiber to 4mm in length, grinding ceramic and quartz sand to 120 mesh, weighing 18 parts of straw fiber, 12 parts of ceramic, 8 parts of fly ash, 5 parts of organic fertilizer, 12 parts of super absorbent resin, 6 parts of seeds (sweet clover seeds, leymus chinensis seeds, sand-grown agropyron cristatum seeds and any proportion of grass seeds) and 5 parts of quartz sand according to parts by weight, uniformly mixing, granulating in an inclined mixing granulator, and preparing a composite inorganic sphere with the particle size of 0.8 cm;
(2) Cutting a degradable PLA (polylactic acid) net or a degradable PP (polypropylene) net with a mesh aperture of 4mm and a thickness of 0.3mm into squares with a side length of 1m, coating a layer of adhesive layer guar gum, carrageenan or konjak gum with a thickness of 0.2mm on the surface layer of the degradable PLA net or the degradable PP net, and uniformly paving the composite inorganic spheres prepared in the step (1) on the surface of the adhesive layer by a standing horse after coating so that the dosage of the composite inorganic spheres is 120 grains/m 2 And naturally drying to obtain the water-retaining material for preventing water and soil loss.
Example 2
(1) Crushing straw fiber to 5mm in length, grinding ceramic and quartz sand to 150 mesh, weighing 20 parts of straw fiber, 18 parts of ceramic, 10 parts of fly ash, 6 parts of organic fertilizer, 12 parts of super absorbent resin, 5 parts of seeds (sweet clover seeds, leymus chinensis seeds and sand-grown agropyron cristatum seeds in any proportion) and 3 parts of quartz sand according to parts by weight, uniformly mixing, granulating in an inclined mixing granulator, and preparing into composite inorganic spheres with the particle size of 0.5 cm;
(2) Cutting a degradable PLA (polylactic acid) net or a degradable PP (polypropylene) net with a mesh aperture of 3mm and a thickness of 1mm into squares with a side length of 1m, coating a layer of adhesive layer guar gum, carrageenan or konjak gum with a thickness of 0.2mm on the surface layer of the degradable PLA net or the degradable PP net, and uniformly paving the composite inorganic spheres prepared in the step (1) on the surface of the adhesive layer by a standing horse after coating so that the dosage of the composite inorganic spheres is 100 grains/m 2 And naturally drying to obtain the water-retaining material for preventing water and soil loss.
Example 3
(1) Grinding straw fiber to 5mm in length, grinding ceramic and quartz sand to 100 meshes, weighing 15 parts of straw fiber, 5 parts of ceramic, 5 parts of fly ash, 3 parts of organic fertilizer, 12 parts of super absorbent resin, 8 parts of seeds (sweet clover seeds and sheep seeds in any proportion) and 7 parts of quartz sand according to parts by weight, uniformly mixing, and granulating in an inclined mixing granulator to prepare a composite inorganic sphere with the particle size of 1 cm;
(2) Cutting a degradable PLA (polylactic acid) net or a degradable PP (polypropylene) net with a mesh aperture of 5mm and a thickness of 0.15mm into squares with a side length of 1m, coating a layer of adhesive layer guar gum, carrageenan or konjak gum with a thickness of 0.2mm on the surface layer of the degradable PLA net or the degradable PP net, and uniformly paving the composite inorganic spheres prepared in the step (1) on the surface of the adhesive layer by a standing horse after coating so that the dosage of the composite inorganic spheres is 110 grains/m 2 And naturally drying to obtain the water-retaining material for preventing water and soil loss.
Example 4
(1) Grinding straw fiber to 4mm in length, grinding ceramic and quartz sand to 100 meshes, weighing 15 parts of straw fiber, 15 parts of ceramic, 5 parts of fly ash, 4 parts of organic fertilizer, 11 parts of super absorbent resin, 8 parts of seeds (sweet clover seeds) and 5 parts of quartz sand according to parts by weight, uniformly mixing, and granulating in an inclined mixing granulator to prepare a composite inorganic sphere with the particle size of 0.7 cm;
(2) Taking a degradable PLA (polylactic acid) net or a degradable PP (polypropylene) net with a mesh aperture of 4mm and a thickness of 0.4mm, cutting into squares with a side length of 1m, and obtaining the biodegradable PLA or PP netCoating a layer of adhesive layer guar gum, carrageenan or konjak gum with the thickness of 0.2mm on the surface of the degradable PLA net or the degradable PP net, and uniformly paving the composite inorganic spheres prepared in the step (1) on the surface of the adhesive layer by a standing horse after coating so that the dosage of the composite inorganic spheres is 100 grains/m 2 And naturally drying to obtain the water-retaining material for preventing water and soil loss.
Comparative example 1
As in example 1, composite inorganic spheres were prepared according to step (1), and the composite inorganic spheres were directly prepared according to 120 particles/m 2 Is used for sowing.
Comparative example 2
The same as in example 1 was except that the straw fiber was pulverized to a length of 0.5mm, the ceramic and quartz sand were ground to a mesh of 120 mesh, 10 parts of the straw fiber, 20 parts of the ceramic, 6 parts of fly ash, 8 parts of organic fertilizer, 5 parts of super absorbent resin, 9 parts of seeds (sweet clover seeds, leymus chinensis seeds, gerbera seeds, and grass seeds were mixed at random) and 15 parts of quartz sand were uniformly mixed and granulated in an inclined mixing granulator to prepare a composite inorganic sphere having a particle size of 0.8 cm.
Comparative example 3
The same as in example 1 is different only in that 18 parts of straw fiber, 12 parts of ceramic, 8 parts of fly ash, 5 parts of organic fertilizer, 12 parts of super absorbent resin and 5 parts of quartz sand are weighed according to parts by weight.
Performance testing
In 2018, 7 months 1 is taken as an object of a soil discharge field in a Minam mining area of China, 7 areas with the area of 5 square meters are selected at a soil piling slope, the slope ratio is 1:1.25, the water retention materials prepared in examples 1-4 and comparative examples 1-3 are respectively placed, under the natural rainfall condition, and under the condition of 2018, 7 months 15 (precipitation amount 15.6 mm), 8 months 1 (precipitation amount 12.4 mm) and 15 (precipitation amount 18.6 mm), the soil erosion amount and the forest coverage rate in each area are respectively measured according to SL190-2007 and GB/T-30363-2013, and the results are shown in tables 1 and 2.
TABLE 1 soil erosion amount measurement results
Table 2 8 determination results of 15 th month forest grass coverage
From the contents of tables 1 and 2, it can be seen that the soil erosion amount of the area paved with the water-retaining material prepared by the embodiment of the invention is obviously lower than that of the comparative example group in one-half period of time after rain wash, and the water-retaining material has higher forest coverage rate, so that the water-retaining material prepared by the invention has more excellent effect of preventing and controlling water and soil loss, and can quickly restore the ecological environment of the water and soil loss area.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (8)
1. The water-retaining material for preventing water and soil loss is characterized by comprising an upper layer and a lower layer, wherein the upper layer is a degradable material net, the lower layer is a reverse filtering layer, the upper layer and the lower layer are connected through an adhesive layer, and the reverse filtering layer consists of composite inorganic spheres;
the bonding layer is guar gum, carrageenan or konjak gum;
the particle size of the composite inorganic sphere is 0.5-1 cm, and the composite inorganic sphere comprises the following raw materials in parts by weight: 15-20 parts of straw fiber, 5-18 parts of ceramic, 5-10 parts of fly ash, 3-6 parts of organic fertilizer, 10-12 parts of super absorbent resin, 5-8 parts of seed and 3-7 parts of quartz sand.
2. The water-retention material for preventing soil erosion according to claim 1, wherein the degradable material net is a degradable PLA net or a degradable PP net, and the mesh size of the degradable material net is 3-5 mm.
3. The water-retaining material for preventing soil erosion according to claim 1, wherein the thickness of the adhesive layer is 0.2mm.
4. The water-retaining material for preventing soil erosion according to claim 1, wherein the length of the straw fiber is 4-5 mm, and the mesh number of the ceramic and quartz sand is 100-150 mesh.
5. The water retention material for preventing soil erosion according to claim 1 wherein said seed is one or more of sweet clover seed, leymus seed, sallowness seed or elvan seed.
6. The water-retaining material for preventing soil erosion according to claim 1, wherein the amount of the composite inorganic spheres is 100 to 120 particles/m 2 。
7. A method for preparing the water-retaining material for preventing soil erosion according to claim 6, comprising the steps of:
(1) Weighing straw fiber, ceramic, fly ash, organic fertilizer, super absorbent resin, seeds and quartz sand according to the weight parts, mixing and granulating to prepare a composite inorganic sphere;
(2) Cutting a degradable material net, brushing an adhesive layer on the surface layer of the degradable material net, uniformly paving the composite inorganic spheres prepared in the step (1) on the surface of the adhesive layer according to the dosage, and naturally drying to obtain the water-retaining material for preventing water and soil loss.
8. The method of claim 7, wherein in step (2), the degradable material web is cut to a square shape.
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| CN103392413A (en) * | 2013-08-19 | 2013-11-20 | 广西玉林宏江能源科技有限公司 | Degradable environmentally-friendly seed net, seed film and seed belt for rice field dry land planting, and use methods thereof |
| CN107371468A (en) * | 2017-08-31 | 2017-11-24 | 大连格宾环境技术有限公司 | Water protects plant-growth carpet |
| CN108739083A (en) * | 2018-03-30 | 2018-11-06 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Shrub ecology ball and its preparation method and application |
| CN110663507A (en) * | 2019-10-17 | 2020-01-10 | 苏州日植环境技术有限公司 | Degradable ecological plant growing blanket and preparation method thereof |
| CN110972893A (en) * | 2019-12-26 | 2020-04-10 | 青岛冠中生态股份有限公司 | Freeze-thawing resistant planting base material for greening in ultrahigh altitude area and use method thereof |
| CN114128556A (en) * | 2021-12-16 | 2022-03-04 | 江苏绿岩生态技术股份有限公司 | Growth bed, manufacturing method thereof and slope repairing method |
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