Bag-in-bag planting device for slope ecological restoration and restoration method

Abstract

The invention discloses a bag-in-bag planting device and method for slope ecological restoration, the device comprises a cushion layer and at least one outer pocket, each outer pocket is internally provided with a plurality of inner pockets, the periphery of the cushion layer is provided with a plurality of fixing holes for fixing the cushion layer on a slope, and the inner pockets are arranged in the fixing holes. The plurality of inner pockets are fixed on the cushion layer at intervals, and the outer pockets are arranged on the cushion layer and surround the plurality of inner pockets; the outer pockets are used for filling matrixes, placing fertilizers or collecting and keeping moisture, and the inner pockets are used for placing bagged seedlings or cup seedlings. Through the technology of a bag-in-bag device, the outer bag is used for directly filling a matrix, placing a fertilizer or collecting and keeping water, the relation with the seedling planting depth does not need to be considered, construction and specification unification are facilitated, meanwhile, the nutrition and water requirements of plants in the inner bag are provided, and the technology serves as an important nutrition guarantee.

Description

Technical Field

[0001] The present invention relates to the technical field of slope ecological restoration, and in particular to a bag-in-bag planting device and a restoration method for slope ecological restoration. Background Art

[0002] The slope repair technology in the prior art mainly includes soil spraying, V-shaped planting troughs (floating platforms), ecological bags and hanging nets, etc., which rely on mechanical spraying of seeds or manual sowing of seeds, artificial planting of seedlings, etc. to restore vegetation on the slope. When sowing seeds or planting seedlings manually, the most traditional method is adopted, such as installing planting troughs on the slope, filling soil in the troughs, digging holes, sowing seeds or planting seedlings, or installing substrates on the ground with ecological bags, etc., and then stacking and fixing them on the slope, digging holes on the bags, sowing seeds and planting seedlings. Relying on manual operation of these steps on the slope is not only inconvenient and unsafe in construction, but also has technical irregularities, and the seed sowing position and depth, and the seedling planting position and depth are difficult to control, which ultimately affects the survival rate of plants. In addition, during the later maintenance process, the plants need to be watered, fertilized and weeded. How to conveniently fill the substrate and provide sufficient substrate to meet the growth of plants, how to make the plants quickly take root on the slope for slope protection and stable growth, how to make the planted plants absorb more water, how to reduce the evaporation of slope water, how to make fertilization more convenient and how to prevent the growth of weeds, etc. These problems have not yet been completely solved. Summary of the invention

[0003] The main purpose of the present invention is to propose a bag-in-bag planting device and restoration method for slope ecological restoration. The invention aims to use the technology of the "bag-in-bag device" to directly fill the substrate, place fertilizer or collect and retain water in the outer bag without considering the relationship with the planting depth of the seedlings, thereby facilitating construction and standardizing. At the same time, it supplies the nutrition and water needs of the plants in the inner pocket as an important nutritional guarantee.

[0004] To achieve the above-mentioned object, the present invention provides a bag-in-bag planting device for slope ecological restoration, comprising a cushion layer, at least one outer pocket, a plurality of inner pockets arranged in each outer pocket, a plurality of fixing holes for fixing the cushion layer to the slope arranged on the outer periphery of the cushion layer, the plurality of inner pockets being fixed on the cushion layer at intervals, the outer pocket being arranged on the cushion layer and surrounding the plurality of inner pockets;

[0005] The outer pocket is used for filling substrate, placing fertilizer or collecting and retaining water, and the inner pocket is used for placing bag seedlings or cup seedlings.

[0006] A further technical solution of the present invention is that the plurality of inner pockets are sewn on the cushion layer.

[0007] A further technical solution of the present invention is that the inner bag is closely attached to the soil layer on the slope surface, and the inner bag is provided with root holes and air and water permeable holes.

[0008] A further technical solution of the present invention is that the plurality of inner pockets are staggeredly arranged in a herringbone shape on the cushion layer.

[0009] A further technical solution of the present invention is that the cushion layer is woven from synthetic fibers and has a fiber grid inside.

[0010] A further technical solution of the present invention is that the surface layer of the cushion layer is green and the bottom layer is black.

[0011] A further technical solution of the present invention is that the cushion layer is a moisture-retaining blanket, a moisture-retaining film or a water-permeable weed-proof film.

[0012] A further technical solution of the present invention is that a diaphragm is provided between two adjacent inner pockets in the outer pocket.

[0013] A further technical solution of the present invention is that the top of the outer pocket is flush with the tops of the plurality of inner pockets or slightly lower than the tops of the inner pockets.

[0014] To achieve the above object, the present invention further proposes a slope ecological restoration method, which is applied to the bag-in-bag planting device for slope ecological restoration as described above, and comprises the following steps:

[0015] Step S10, tidying up the slope surface, clearing weeds on the slope surface, removing dangerous rocks on the slope surface, and filling up potholes on the slope surface;

[0016] Step S20, fixing the cushion layer to the slope surface: directly fixing the cushion layer to the slope surface by driving anchor rods or steel bars through the steel rings on the cushion layer, or fixing the cushion layer to the lattice beam by passing steel ropes through the steel rings and fixing the steel ropes by driving expansion hooks;

[0017] Step S30, taking the selected seedlings out of the bag and placing them directly in the inner bag;

[0018] Step S40, filling the configured matrix into the outer pocket, wherein the matrix fills the outer pocket or is slightly lower than the inner pocket;

[0019] Step S50, watering and maintenance are carried out after the construction is completed. In the later maintenance, fertilizer is applied according to the growth of the plants. If fertilizer is needed, a hole is dug directly at any position of the outer bag or fertilizer is directly placed.

[0020] The bag-in-bag planting device and restoration method for slope ecological restoration of the present invention have the following beneficial effects:

[0021] 1. Through the technology of the "bag-in-bag device", the present invention utilizes the outer pocket to directly fill the substrate, place fertilizers, or collect and retain moisture, without considering the relationship with the planting depth of seedlings, facilitating construction and standardization. At the same time, it supplies the nutritional and moisture requirements of the plants in the inner pocket, serving as an important nutritional guarantee.

[0022] 2. The inner pocket is fixed at a certain position (flush with the outer pocket or 10 mm - 20 mm higher than the outer pocket), close to the slope soil layer, and is provided with root-penetrating holes and ventilation holes. When planting plants, the bagged seedlings or cup seedlings (with soil balls) are directly placed in the inner pocket for one-time fixation, reducing multiple procedures in conventional construction such as fixing the seedlings while filling the substrate. Moreover, the base of the plant at the fixed position is flush with or slightly higher than the substrate in the outer pocket, so the plants will not倒伏, and it will not cause over-planting depth to affect growth, forming a unified planting standard, which is beneficial to plant growth. In the later stage, the plant roots can grow in the outer pocket and the slope soil, forming an integrated soil space.

[0023] 3. The inner pockets are arranged in a "pin" shape, which is beneficial to retain more moisture on the slope and play a role in saving water.

[0024] 4. The surface layer of the pocket cushion is green and the bottom layer is black. It is a water-permeable and weed-proof membrane, which can not only transmit moisture to the slope soil but also inhibit weed growth, providing a better growth space for the seedlings, and thus promoting the stable growth of plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0026] Figure 1 is the overall structural schematic diagram of the preferred embodiment of the bag-in-bag planting device for slope ecological restoration of the present invention;

[0027] Figure 2 is the top view of the preferred embodiment of the bag-in-bag planting device for slope ecological restoration of the present invention;

[0028] Figure 3 is the top view of the preferred embodiment of the bag-in-bag planting device for slope ecological restoration of the present invention;

[0029] Figure 4 is the flow schematic diagram of the slope ecological restoration method of the present invention.

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0031] Description of Figure Numbers:

[0032] Cushion layer 1; outer pocket 2; inner pocket 3; fixing hole 4; diaphragm 5; root penetration hole and air and water permeable hole 6. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] One of the solutions adopted by the slope repair technology in the prior art is to dig holes directly on the slope surface to plant seedlings. This solution has the risk of disturbing the slope surface and causing soil erosion. At the same time, the plant growth process is greatly affected by weeds and other interferences, making it difficult to form a stable vegetation. Frequent manual weeding and fertilization are required, and the project cost is high. During the maintenance process, when the plants need to be fertilized, manual fertilization is carried out through hole fertilization, which is difficult to operate and has high construction costs. If granular fertilizer is directly spread by hand or liquid fertilizer is sprayed mechanically, the fertilizer is difficult to penetrate into the soil, and the plant roots cannot absorb nutrients, which affects growth.

[0035] Another option is to use ecological bags, planting troughs and other engineering auxiliary measures to carry out slope ecological restoration. Generally speaking, these steps rely on manual operation on the slope, which is inconvenient and unsafe, including substrate filling, plant planting, etc. At the same time, there are also technical irregularities, such as the location and depth of seed sowing, and the location and depth of seedling planting are difficult to control, which ultimately affects the survival rate of plants. In addition, in the later maintenance process, watering, fertilizing and weeding of slope plants will cause soil erosion and wild weed growth, making it difficult for slope vegetation, especially ecological landscape slope vegetation, to develop sustainably, healthily and stably.

[0036] Therefore, the present invention proposes a solution, which uses the "bag in bag" technology to utilize the outer bag to fill the substrate, place fertilizer or collect and retain water to supply the nutrition and water needs of the plants in the inner bag.

[0037] For details, please refer to Figures 1 to 3The present invention proposes a bag-in-bag planting device for slope ecological restoration. The preferred embodiment of the bag-in-bag planting device for slope ecological restoration of the present invention includes a cushion layer 1, at least one outer pocket 2, each outer pocket 2 is provided with a plurality of inner pockets 3, the outer periphery of the cushion layer 1 is provided with a plurality of fixing holes 4 for fixing the cushion layer 1 to the slope, the plurality of inner pockets 3 are fixed on the cushion layer 1 at intervals, the outer pocket 2 is arranged on the cushion layer 1, and surrounds the plurality of inner pockets 3.

[0038] The outer pocket 2 is used for filling substrate, placing fertilizer or collecting and retaining water, and the inner pocket 3 is used for placing bag seedlings or cup seedlings.

[0039] Specifically, the inner pocket 3 is directly fixed on the cushion layer 1 by sewing, and is closely attached to the soil layer on the slope surface.

[0040] The inner pocket 3 is provided with root holes and air and water permeable holes 6. When planting plants, the bag seedlings or cup seedlings (with soil balls) are directly placed in the inner pocket 3 and fixed in shape at one time, so that the plants do not fall over or fall off. According to the number of inner pockets 3 on different rows on the cushion layer 1, a large outer pocket 2 is used to surround them all, with the upper edge flush with or slightly lower than the inner pocket 3. Nutrients such as built-in substrates and biological organic fertilizers are provided to supply the growth of the plants in the inner bag, so that the roots of the plants can grow in the outer bag space and in the slope soil at a later stage, creating this integrated soil space and forming a mutually supporting relationship of "the inner pocket 3 is used for standard, shaped and fixed plants, and the outer pocket 2 is used to install substrates and fertilizers to meet the growth and planting needs of the inner bag plants".

[0041] In this embodiment, the cushion layer 1 located at the bottom layer of the inner pocket 3 and the outer pocket 2 can be woven with high-strength synthetic fibers, and has a dense fiber grid inside to play a water-permeable role.

[0042] In addition, the cushion layer 1 can be made of a moisture-retaining blanket, a moisture-retaining film or a water-permeable and weed-proof film. The surface layer of the cushion layer 1 is green and the bottom layer is black, which can play a shading role, making the seeds in the soil unable to reproduce and grow due to lack of light. Therefore, it plays a water-permeable and weed-proof role, which can transfer water to the slope soil while preventing and inhibiting the growth of weeds, thereby promoting the stable growth of plants.

[0043] In this embodiment, a diaphragm 5 is provided between two adjacent inner pockets 3 in the outer pocket 2. Specifically, one side of the diaphragm 5 is connected to the cushion layer 1, and the other side is connected to the outer pocket 2, so that the outer pocket 2 can be pulled forward and backward to make it more firm and better load-bearing, thereby improving the load-bearing capacity of the outer pocket 2.

[0044] Furthermore, in the present embodiment, a plurality of inner pockets 3 are staggeredly arranged in a herringbone shape on the cushion layer 1. Such staggered placement is beneficial to the full absorption and upward and downward conduction of water, and improves the vegetation coverage.

[0045] In this embodiment, the top of the outer pocket 2 is flush with the tops of several inner pockets 3 or slightly lower than the tops of the inner pockets 3.

[0046] The following will Figures 1 to 3 elaborate in detail on the working principle of the bag-in-bag planting device for slope ecological restoration of the present invention.

[0047] Due to problems such as the presence of an inclined slope, a thin soil layer, and poor nutrients on the slope, it is difficult for plants to be colonized and grow. Therefore, artificial auxiliary measures are needed to increase the substrate beneficial to plant growth on the slope surface, plant plant species that are relatively drought-resistant, barren-tolerant, and have stable growth, and with subsequent maintenance measures such as watering, fertilizing, and weeding, gradually promote the restoration of slope vegetation and the formation of ecological landscapes. The working principle of the bag-in-bag planting device for slope ecological restoration of the present invention is as follows.

[0048] 1. According to the characteristics of the slope surface, the moisture-holding blanket, moisture-holding film, or water-permeable and weed-proof film can be made into a cushion 1 with specifications of 1m * 1m, 2m * 2m, or other sizes. Five to nine round holes with a size of about 5mm - 10mm are respectively drilled around and in the middle of the cushion 1, and the edges are sealed with stainless steel rings. When installing and fixing on the slope surface, it is fixed to the soil or to the slope lattice beam by passing through holes with anchor bolts, steel bars, or stainless steel ropes, etc.

[0049] 2. Setting of the inner pockets 3: Inner pockets 3 with different specifications such as 20cm * 13cm, 15cm * 13cm, 11cm * 10cm, etc. (selected according to the specifications of nursery stock cultivated in the market) are sewn on the cushion 1. Eight to nine inner pockets 3 are sewn on the 1m * 1m cushion 1 and arranged in a staggered pattern to directly place and fix the nutrient bag seedlings or nutrient cup seedlings cultivated in the nursery, or to place seeds, so that the plants will not fall down or drop. Such staggered placement up and down is conducive to the full absorption and up-and-down conduction of water, and improves the vegetation coverage. Materials can be superfine fiber cloth or non-woven fabric with strong water absorption. The cushion 1 at each position of the inner pocket 3 is perforated as root-penetrating and water-permeable holes. The number of holes is 3 - 5, and the diameter of the holes is about 5mm - 10mm, which can meet the requirement that water penetrates into the slope soil and the plant roots directly penetrate into the slope soil to form an integrated nutrient space.

[0050] 3. Setting of outer pocket 2: According to the position of inner pocket 3, a large outer pocket 2 is sewn in a row in the order of the herringbone shape. The outer pocket 2 is about 250-300mm wide and 900-1000mm long. 2-3 transverse films are added inside. The height of the film is about 30-40mm lower than that of the outer pocket 2 and about 10cm wide (it can be adjusted according to the quality of the loading base or the size of the seedlings planted in the inner pocket 3). The cushion layer 1 and the outer pocket 2 are connected into one, so that the structure of the outer pocket 2 is more stable, and the inner side is connected to form an overall soil space. The outer pocket 2 can be directly used to fill the matrix, reducing the construction procedure on the slope (the conventional procedure is to fill 1 / 3-1 / 2 of the matrix, place the seedlings, and then fill the matrix. This requires one hand to support the seedlings and the other hand to fill the matrix, which is inconvenient to construct). The process is simple and the construction is convenient. At the same time, the matrix will not cover the base of the plant, and will not cause the plant to be planted too deep to affect survival. In addition, for different locations of potholes, the pocket can be flexibly used to fill the substrate, with more or less or no filling, to meet the substrate requirements for plant growth, while making the slope surface smooth. In the absence of substrate, it can be directly used to retain water and absorb and conduct moisture.

[0051] 4. Position of inner pocket 3 and outer pocket 2: The position of inner pocket 3 should be located in the middle of the inner side of outer pocket 2, and should be flush with outer pocket 2 or 10-20mm higher than outer pocket 2 to fix the seedlings, prevent them from falling over, and just make the base of the seedlings higher than the soil layer to avoid planting too deep and causing the seedlings to die. At the same time, this direct one-time placement and fixation forms a unified placement and fixation standard for seedling planting, which is convenient for workers to operate and control during construction, without having to use their hands to support, fix and backfill soil, etc. At the same time, it will not be planted too deep, which is conducive to plant growth.

[0052] 5. Repair method: When applied on a slope, the process is as follows: ① Slope preparation, including weed cleaning, dangerous rock removal, pothole filling, etc.; ② Fix the device on the slope, and directly use the steel ring on the cushion layer 1 to fix it with anchor rods or steel bars, or use steel ropes to pass through each steel ring and fix it to the lattice beam, and fix it by using expansion hooks, etc., which can be fixed up and down and left and right. ③ After the selected seedlings are removed from the bag (pot), they are directly placed in the inner pocket 3, fixed and placed at one time; ③ Fill the configured matrix directly into the outer pocket 2, which can be filled or lower than the inner pocket 3 by about 5mm-10mm. ④ After the construction is completed, water and maintain. In the later maintenance, fertilize according to the growth of the plants. If fertilization is needed, dig holes or place fertilizers directly at any position of the outer pocket 2, including inorganic fertilizers such as compound fertilizers and organic fertilizers such as chicken manure and mushroom fertilizer. In this way, the fertilizer is just outside the base of the plant, which is conducive to the root system to absorb nutrients and avoid burning the seedlings. At the same time, there is no need to dig holes on the slope to avoid disturbance of the slope soil layer and reduce soil erosion.

[0053] The beneficial effects of the bag-in-bag planting device for slope ecological restoration of the present invention are as follows:

[0054] 1. Through the technology of the "bag-in-bag device", the present invention uses the outer pocket to directly fill the substrate, place fertilizers or collect and retain water, without considering the relationship with the planting depth of seedlings, which is convenient for construction and standardization. At the same time, it supplies the nutritional and water requirements of the plants in the inner pocket, serving as an important nutritional guarantee.

[0055] 2. The inner pocket is fixed at a certain position (flush with the outer pocket or 10 mm - 20 mm higher than the outer pocket), close to the slope soil layer, and is provided with root-piercing holes and ventilation holes. When planting plants, the bag seedlings or cup seedlings (with soil balls) are directly placed in the inner pocket for one-time fixation, reducing multiple procedures of fixing the seedlings while filling the substrate in conventional construction. Moreover, the base of the plant at the fixed position is flush with or slightly higher than the substrate in the outer pocket, so the plants will not lodge and will not cause over-deep planting to affect growth, forming a unified planting standard, which is beneficial to plant growth. In the later stage, the plant roots can grow in the outer pocket and the slope soil, forming an integrated soil space.

[0056] 3. The inner pockets are arranged in a "pin" shape, which is beneficial to retaining more water on the slope and plays a role in saving water.

[0057] 4. The surface layer of the pocket cushion is green and the bottom layer is black, which is a water-permeable and weed-proof film. It can not only transmit water to the slope soil but also inhibit the growth of weeds, providing a better growth space for the seedlings, and thus can promote the stable growth of plants.

[0058] To achieve the above object, the present invention also provides a slope ecological restoration method, which is applied to the bag-in-bag planting device for slope ecological restoration as described above. Please refer to Figure 4 , and this method includes the following steps:

[0059] Step S10, tidy up the slope surface, remove weeds on the slope surface, eliminate dangerous rocks on the slope, and fill in the pits and depressions on the slope.

[0060] Step S20, fix the cushion on the slope surface: Specifically, it can be directly fixed to the slope by driving anchor bolts or steel bars through the steel rings on the cushion, or fixed to the lattice beam by passing steel ropes through each steel ring and then fixing it by driving expansion hooks, and it can be fixed up, down, left, and right.

[0061] Step S30, directly place the selected seedlings after removing the bags (or pots) into the inner pocket for one-time fixation and placement.

[0062] Step S40, fill the configured substrate into the outer pocket, where the substrate fills the outer pocket or is slightly lower than the inner pocket by 5 mm - 10 mm.

[0063] Step S50, watering and maintenance are carried out after construction. In the later maintenance, fertilizer is applied according to the growth of the plants. If fertilizer is needed, a hole is directly dug at any position of the outer bag or fertilizer is directly placed. Fertilizers can be inorganic fertilizers such as compound fertilizers and organic fertilizers such as chicken manure and mushrooms. The fertilizer is just outside the base of the plant, which is conducive to the root system absorbing nutrients and avoiding burning the seedlings. At the same time, there is no need to dig holes on the slope surface, avoiding disturbance of the slope soil layer and reducing soil erosion.

[0064] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A bag-in-bag planting device for slope ecological restoration, characterized in that: It comprises a cushion layer and at least one outer pocket, each of the outer pockets is provided with a plurality of inner pockets, the outer periphery of the cushion layer is provided with a plurality of fixing holes for fixing the cushion layer to the slope, the plurality of inner pockets are fixed on the cushion layer at intervals, and the outer pocket is provided on the cushion layer and surrounds the plurality of inner pockets; The outer pocket is used for filling substrate, placing fertilizer or collecting and retaining water, and the inner pocket is used for placing bag seedlings or cup seedlings.

2. The bag-in-bag planting device for slope ecological restoration according to claim 1 is characterized in that: The plurality of inner pockets are sewn on the cushion layer.

3. The bag-in-bag planting device for slope ecological restoration according to claim 1 is characterized in that: The inner pocket is closely attached to the soil layer on the slope surface, and is provided with root holes and air and water permeable holes.

4. The bag-in-bag planting device for slope ecological restoration according to claim 1 is characterized in that: The plurality of inner pockets are staggeredly arranged on the cushion layer in a herringbone shape.

5. The bag-in-bag planting device for slope ecological restoration according to claim 1 is characterized in that: The cushion layer is woven from synthetic fibers and has a fiber grid inside.

6. The bag-in-bag planting device for slope ecological restoration according to claim 5 is characterized in that: The surface layer of the cushion layer is green, and the bottom layer is black.

7. The bag-in-bag planting device for slope ecological restoration according to claim 1 is characterized in that: The cushion layer is a moisture-retaining blanket, a moisture-retaining film or a water-permeable weed-proof film.

8. The bag-in-bag planting device for slope ecological restoration according to claim 1 is characterized in that: A diaphragm is arranged between two adjacent inner pockets in the outer pocket.

9. The bag-in-bag planting device for slope ecological restoration according to claim 1, characterized in that: The top of the outer pocket is flush with the tops of the plurality of inner pockets or slightly lower than the tops of the inner pockets.

10. A slope ecological restoration method, characterized in that: The method is applied to the bag-in-bag planting device for slope ecological restoration according to any one of claims 1 to 9, and the method comprises the following steps: Step S10, tidying up the slope surface, clearing weeds on the slope surface, removing dangerous rocks on the slope surface, and filling up potholes on the slope surface; Step S20, fixing the cushion layer to the slope surface: directly fixing the cushion layer to the slope surface by driving anchor rods or steel bars through the steel rings on the cushion layer, or fixing the cushion layer to the lattice beam by passing steel ropes through the steel rings and fixing the steel ropes by driving expansion hooks; Step S30, taking the selected seedlings out of the bag and placing them directly in the inner bag; Step S40, filling the configured matrix into the outer pocket, wherein the matrix fills the outer pocket or is slightly lower than the inner pocket; Step S50, watering and maintenance are carried out after the construction is completed. In the later maintenance, fertilizer is applied according to the growth of the plants. If fertilizer is needed, a hole is dug directly at any position of the outer bag or fertilizer is directly placed.

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