CN111657012A - High and steep rock slope greening structure and construction method thereof - Google Patents
High and steep rock slope greening structure and construction method thereof Download PDFInfo
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- CN111657012A CN111657012A CN202010597792.0A CN202010597792A CN111657012A CN 111657012 A CN111657012 A CN 111657012A CN 202010597792 A CN202010597792 A CN 202010597792A CN 111657012 A CN111657012 A CN 111657012A
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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
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/029—Receptacles for seedlings
- A01G9/0293—Seed or shoot receptacles
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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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/04—Supports for hops, vines, or trees
- A01G17/10—Holders for boughs or branches
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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
- A01G24/20—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
- A01G25/00—Watering gardens, fields, sports grounds or the like
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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
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/022—Pots for vertical horticulture
- A01G9/025—Containers and elements for greening walls
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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
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/12—Supports for plants; Trellis for strawberries or the like
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
- E02D2300/0034—Steel; Iron in wire form
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Botany (AREA)
- Cultivation Of Plants (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a high and steep rock slope greening structure, and relates to the field of environment management construction. It comprises a rock wall and a plant growth substrate bag; the plant growth substrate bag is positioned in the rock wall hole and comprises a growth substrate bag, a growth substrate and plants; and a maintenance system is arranged on the rock surface of the rock wall. The invention integrates various processes, has lower manufacturing cost and can realize the aim of long-term re-greening of rock surfaces of rock walls. The invention also discloses a construction method of the high and steep rock slope greening structure.
Description
Technical Field
The invention relates to the field of environmental management construction, in particular to a high and steep rock slope greening structure. The invention also discloses a construction method of the high and steep rock slope greening structure.
Background
High and steep rock faces (caused by artificial mining or formed naturally) are frequently encountered in hydraulic and hydroelectric engineering, environmental management engineering, mine engineering, building engineering and municipal engineering, landform landscapes in the visible range of the exposed slopes cause serious damage, and the rock bodies have the characteristics of large exposed rock area, hard rock walls, high and steep slopes, smoothness, lack of soil and water resources and the like, and have the difficulties of scarce matrix, severe natural environment, high construction difficulty, high plant climbing difficulty and the like.
Whatever plant is adopted for quarry greening, the environmental conditions necessary for plant growth, namely soil, moisture, illumination, proper temperature and the like, need to be met. As mentioned above, the soil and water resources in the mining area are scarce, and the rock wall has no soil at all and cannot preserve the water required for the growth of plants. More importantly, the temperature of the large-area exposed rock wall is extremely high after the rock wall is exposed to burning sun in summer, according to field actual measurement, the highest temperature can reach 60-70 ℃, and if plants are directly planted on the rock wall, not only can the moisture in a planting matrix be rapidly evaporated, but also tender branches and leaves of the plants can be burnt, so that the plants are withered and die.
Therefore, it is necessary to provide a high and steep rock slope greening structure.
Disclosure of Invention
The first purpose of the invention is to overcome the defects of the background technology, and provide a high steep rock slope greening structure.
The second purpose of the invention is to provide a construction method of the high and steep rock slope greening structure.
In order to achieve the first object, the technical scheme of the invention is as follows: the steep rock slope surface greening structure is characterized in that: comprises a rock wall and a plant growth substrate bag; a plurality of rock wall holes are formed in the rock surface of the rock wall; the plant growth substrate bag is positioned in the rock wall hole and comprises a growth substrate bag, a growth substrate positioned in the growth substrate bag and plants positioned in the growth substrate bag; and the rock surface of the rock wall is provided with a maintenance system.
In the technical scheme, the growth substrate comprises plant seeds, planting soil, grass fibers, an adhesive, a soil conditioner, a biological bacterial fertilizer, a slow release fertilizer and a water-retaining agent.
In the technical scheme, a plurality of anchor bolts are arranged on the rock surface of the rock wall, and the metal mesh is hung on the anchor bolts.
In the technical scheme, the shape of the rock wall hole can be round, square or polygonal, and the rock wall hole can be in the form of single hole, double holes or multiple holes.
In the technical scheme, the depth of the rock wall hole is 0.8-1.2m, and a 30cm fertilizer is filled in the hole to serve as a bottom; the growth substrate bag is a degradable disposable non-woven fabric non-falling bag.
In the technical scheme, the indexes of the growth matrix are that organic matters are more than or equal to 32.0%, humus is more than or equal to 10.0%, nitrogen, phosphorus and potassium are more than or equal to 4.0%, water content is more than or equal to 30.0%, water absorption rate is more than or equal to 6.0, water stability index is more than or equal to 60.0%, pH value is 5.5-7.0, and fineness is less than 5mm and more than or equal to 75.0%.
In the technical scheme, original surface planting soil of an engineering land is selected as planting soil in the growth substrate, crushed and dried in the air and sieved by a sieve of 8 mm; processing straw and branch into 10-15mm length; raw materialN in the bacterial manure and the slow release fertilizer: p: k is 6:36:6, the effective viable count of the microbial inoculum is more than 108/g。
In the technical scheme, when the rock wall hole is double-hole, the plant growth substrate bag containing the climbing plant is filled in the upper hole of the rock wall hole, and the plant growth substrate bag containing the hanging plant is filled in the lower hole;
when the rock wall hole is porous, the upper hole of the rock wall hole is filled with a plant growth substrate bag containing climbing plants, the middle hole is filled with a plant growth substrate bag containing shrubs, and the lower hole is filled with a plant growth substrate bag containing suspended plants.
In order to achieve the second object, the invention has the technical scheme that: the construction method of the green restoration structure of the steep rock slope is characterized by comprising the following steps of:
Compared with the prior art, the invention has the following advantages:
1) the invention integrates various processes, has lower manufacturing cost and can realize the aim of long-term re-greening of rock surfaces of rock walls.
2) The growth substrate bag is a degradable disposable non-woven fabric bag which is free from being taken off, has certain strength, has the advantages of no root conglobation, no root nesting, root system broken bag growth, suitability for various plants, easy survival, wide application range and environmental protection.
3) In order to improve the plant climbing efficiency and enhance the reliability of plant attachment, the metal net is additionally arranged on the wall surface to assist the plant climbing.
4) According to the invention, the wall surface is cooled through the maintenance system, so that the phenomenon that the temperature of the rock wall is too high when the high-temperature weather continues in summer, and the climbing plant attached to the rock wall is dried and dies is avoided; and providing water and fertilizer for the plants in the growth substrate bag through a maintenance system.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a schematic structural diagram of a plant growth substrate bag.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be apparent and readily appreciated by the description.
With reference to the accompanying drawings: the steep rock slope surface greening structure is characterized in that: comprises a rock wall 1 and a plant growth substrate bag 4; a plurality of rock wall holes 5 are formed in the rock surface of the rock wall 1; the plant growth substrate bag 4 is positioned in the rock wall hole 5, and the plant growth substrate bag 4 comprises a growth substrate bag 41, a growth substrate 42 positioned in the growth substrate bag 41 and a plant 43 positioned in the growth substrate bag 41; and a maintenance system 3 is arranged on the rock surface of the rock wall 1.
The growth substrate 42 comprises plant seeds, planting soil, grass fibers, an adhesive, a soil conditioner, a biological bacterial fertilizer, a slow release fertilizer and a water-retaining agent.
A plurality of anchor bolts 2 are arranged on the rock surface of the rock wall 1, and metal nets 21 are hung on the anchor bolts 2; although the vine plants such as the parthenocissus tricuspidata have strong climbing capacity, whether the smooth rock wall 1 can be firmly adsorbed is yet to be further investigated; meanwhile, the climbing plant adsorbed on the rock wall 1 is threatened by external loads such as natural wind and the like. In order to improve the plant climbing efficiency and enhance the reliability of plant attachment, a metal net or a metal wire and the like are additionally arranged on the wall surface to assist the plant climbing.
The shape of the rock wall holes 5 can be round, square or polygonal, and the rock wall holes 5 can be in the form of single hole, double holes or multiple holes.
The depth of 5 holes of the rock wall hole is 0.8-1.2m, and the hole is filled with 30cm of biological organic fertilizer such as slow-release compound fertilizer or sheep manure and the like as a bottom; the growth substrate bag 41 is a degradable disposable non-woven fabric non-falling bag.
The distance between each group of holes is set according to the actual situation, such as the left-right distance of 1m and the up-down distance of 6 m.
The indexes of the growth matrix 42 are that organic matters are more than or equal to 32.0 percent, humus is more than or equal to 10.0 percent, nitrogen, phosphorus and potassium are more than or equal to 4.0 percent, water content is more than or equal to 30.0 percent, water absorption rate is more than or equal to 6.0, water stability index is more than or equal to 60.0 percent, pH value is 5.5-7.0, and fineness is less than 5mm and more than or equal to 75.0 percent.
The planting soil in the growth substrate 42 is ground by selecting original surface planting soil of an engineering land, and is dried in the air and sieved by a sieve of 8 mm; processing straw and branch into 10-15mm length; n in the biological bacterial fertilizer and the slow release fertilizer: p: k is 6:36:6, the effective viable count of the microbial inoculum is more than 108(ii)/g; the proportioning volume ratio of the base material mixture is as follows: greening base materials: fiber: 20, planting soil: 40: 40.
the double holes or multiple holes of the rock wall holes 5 are not communicated with each other, and each hole of each group of holes is filled with a different plant growth substrate bag 4; the climbing distance of general vine plants cannot exceed 20m, so the greening restoration of higher stone walls is usually carried out by adopting a relay mode; climbing plants mainly comprise Tiger, Ficus pumila, Trachelospermum jasminoides, etc., and dangling plants mainly comprise Pueraria lobata, etc.;
when the rock wall hole 5 is a double hole, the upper hole of the rock wall hole 5 is filled with a plant growth matrix bag 4 containing climbing plants, and the lower hole is filled with a plant growth matrix bag 4 containing hanging plants; when the structure is double-hole, climbing plants can be planted in the creeper and climb from bottom to top, and the hanging plants are hung from the top of the slope by kudzu, vinca oil-flax, yellow jasmine and the like for covering and greening; finally, the three-dimensional green-restoring effect of climbing up and hanging down can be formed;
when the rock wall hole 5 is porous, the plant growth substrate bag 4 containing climbing plants is filled in the upper hole of the rock wall hole 5, the plant growth substrate bag 4 containing shrubs is filled in the middle hole, and the plant growth substrate bag 4 containing suspended plants is filled in the lower hole, so that the three-dimensional greening effect of climbing up and hanging down can be finally formed.
The distance between each group of holes is set according to the actual situation, such as the left-right distance of 1m and the up-down distance of 6 m.
The construction method of the green restoration structure of the steep rock slope is characterized by comprising the following steps of:
In practical use, the growth substrate 42 is characterized in that the plant growth substrate mainly comprises plant seeds, planting soil, grass fibers, an adhesive, a soil conditioner, a biological bacterial fertilizer, a slow release fertilizer and a water retention agent according to a certain proportion, and the plant growth substrate is mixed with local planting loam according to a certain proportion during construction to form the plant growth substrate.
Technical indexes of the plant growth substrate are as follows:
1) organic matter is more than or equal to 32.0 percent, humus is more than or equal to 10.0 percent, nitrogen, phosphorus and potassium (N + P)2O5+K2) Not less than 4.0%, water content (free water) not less than 30.0%, water absorption multiplying power not less than 6.0, water stability index not less than 60.0%, pH value 5.5-7.0, fineness not more than 5mm not less than 75.0%.
2) The planting soil is generally selected from original surface planting soil of an engineering land, crushed and dried by an air-drying sieve of 8 mm.
3) The grass fiber can be processed into 10-15mm long by taking straw, branches and the like on site.
4) The vegetation seeds are generally prepared by mixing 2-3 plant seeds including seeds of gramineous and leguminous plants, and should be of good quality suitable for local soil and climate conditions and high survival rate.
5) The selected fertilizers are slow-release compound fertilizers and organic fertilizers (slow-release fertilizers and biological bacterial fertilizers), the organic fertilizers are fully fermented and decomposed, the slow-release compound fertilizers meet the GB15063-2001 regulation, wherein N: P: K is 6:36:6, and the effective viable count of the microbial inoculum is more than 108/g。
6) The base material mixture ratio (volume ratio): greening base materials: fiber: 20, planting soil: 40: 40.
7) the plant growth base material adopts fertilizers, adhesives and water retention agent materials, has good adhesion and cohesive force in various physical and chemical properties, can be attached to a slope surface to withstand the hydraulic scouring of natural rainfall and artificial irrigation without large erosion and loss of the components of the base material layer; has good agglomerate structure and total porosity>40 percent, and the volume weight should be 0.8g/cm3-1.2g/cm3The effective water holding capacity is more than 40%; has good permeability, water retention and fertilizer retention; should not harden, does not have obvious shrinkage and crack after drying, and does not allow obvious delamination.
The maintenance system has the specific functions as follows:
1) cooling the wall surface: in order to avoid the over-high temperature of the rock wall in the continuous high-temperature weather in summer, which leads to the withering and death of the climbing plant attached to the rock wall after being baked, a plurality of water reservoirs can be built at the high position of the terrain to accumulate natural rainfall. The PVC plastic pipe is adopted to lead water to the top of the slope, the water flow is controlled by the water valve, the water flows slowly on the wall surface and covers the wall surface from top to bottom gradually, and therefore the effect of reducing the temperature of the wall surface is achieved. Meanwhile, the water flow can be absorbed by aerial roots of the climbing plant, and the effect of relieving drought is achieved.
2) Providing water and fertilizer for the plants in the matrix. Because the high and steep rock faces are mostly far away, the difficulty in developing daily maintenance work is high, the cost is high, and considering drought and water shortage in a mining area and the fertility of a planting matrix is gradually reduced along with the increase of time, the water can be provided for the plants in the matrix in a spraying or drop irrigation mode through a maintenance system for prolonging the daily maintenance period, reducing the maintenance cost, enhancing the capability of the plants in resisting the severe environment and improving the survival rate, and a certain amount of slow-release compound fertilizer and the like can be added to provide fertilizer for the plants.
Other parts not described belong to the prior art.
Claims (9)
1. The steep rock slope surface greening structure is characterized in that: comprises a rock wall (1) and a plant growth substrate bag (4); a plurality of rock wall holes (5) are formed in the rock surface of the rock wall (1); the plant growth substrate bag (4) is positioned in the rock wall hole (5), and the plant growth substrate bag (4) comprises a growth substrate bag (41), a growth substrate (42) positioned in the growth substrate bag (41) and plants (43) positioned in the growth substrate bag (41); and a maintenance system (3) is arranged on the rock surface of the rock wall (1).
2. The high steep rock slope greening construction structure of claim 1, wherein: the growth substrate (42) comprises plant seeds, planting soil, grass fibers, an adhesive, a soil conditioner, a biological bacterial fertilizer, a slow release fertilizer and a water-retaining agent.
3. The high steep rock slope greening construction structure of claim 2, wherein: a plurality of anchor bolts (2) are arranged on the rock surface of the rock wall (1), and a metal mesh (21) is hung on the anchor bolts (2).
4. The high steep rock slope greening construction structure of claim 3, wherein: the shape of the rock wall hole (5) can be round, square or polygonal, and the rock wall hole (5) can be in the form of single hole, double holes or multiple holes.
5. The high steep rock slope greening construction structure of claim 4, wherein: the depth of the rock wall hole (5) is 0.8-1.2m, and a fertilizer of 30cm is filled in the hole to serve as a bottom; the growth substrate bag (41) is a degradable disposable non-woven fabric non-falling bag.
6. The high steep rock slope greening construction structure of claim 5, wherein: the indexes of the growth matrix (42) are that organic matters are more than or equal to 32.0 percent, humus is more than or equal to 10.0 percent, nitrogen, phosphorus and potassium are more than or equal to 4.0 percent, water content is more than or equal to 30.0 percent, water absorption rate is more than or equal to 6.0, water stability index is more than or equal to 60.0 percent, pH value is 5.5-7.0, and fineness is less than 5mm and more than or equal to 75.0 percent.
7. The high steep rock slope greening construction structure of claim 6, wherein: the planting soil in the growth substrate (42) is selected from original surface planting soil of an engineering land, crushed and dried in the air and sieved by a sieve of 8 mm; processing straw and branch into 10-15mm length; n in the biological bacterial fertilizer and the slow release fertilizer: p: k is 6:36:6, the effective viable count of the microbial inoculum is more than 108/g。
8. The high steep rock slope greening construction structure of claim 4, wherein: when the rock wall hole (5) is a double hole, the upper hole of the rock wall hole (5) is filled with a plant growth substrate bag (4) containing climbing plants, and the lower hole is filled with a plant growth substrate bag (4) containing hanging plants;
when the rock wall hole (5) is porous, the upper hole of the rock wall hole (5) is filled with a plant growth substrate bag (4) containing climbing plants, the middle hole is filled with a plant growth substrate bag (4) containing shrubs, and the lower hole is filled with a plant growth substrate bag (4) containing suspended plants.
9. The construction method of a high steep rock slope regreening structure according to any one of claims 1 to 8, characterized by comprising the following steps:
step 1, prefabricating a plant growth substrate bag: filling a growth substrate (42) into the growth substrate bag (41), and inserting a plant (43);
step 2, rock wall pore-forming: drilling a rock wall hole (5) in the rock wall (1); driving an anchor (2) into the rock wall (1), and hanging a metal mesh (21) on the anchor (2);
step 3, installing a plant growth substrate bag (4): firstly, filling 30cm of fertilizer into the rock wall hole (5) to serve as a bottom, and then filling the prefabricated plant growth substrate bag (4) into the rock wall hole (5);
step 4, arranging a maintenance system: and arranging a maintenance system (3) on the rock surface of the rock wall (1) to ensure the moisture required by the growth of plants, wherein the maintenance period is 24 months.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113367057A (en) * | 2021-07-20 | 2021-09-10 | 广西北投交通养护科技集团有限公司 | Side slope greening method based on micro-irrigation technology |
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