A method of planting a street tree with an enlarged root zone

Abstract

This application provides a method for planting street trees to expand their root system range, comprising the following steps: excavating a planting strip for street trees along the roadside; marking out and determining the planting area and permeable support area for each street tree; laying support modules at the bottom of the planting strip, with the support modules located within the permeable support area; applying base fertilizer to the bottom of the planting area and covering it with a thin layer of soil; placing the tree within the planting area; pre-burying tensioning components at the four corners of the tree's root ball; laying root-blocking boards on both sides of the planting strip parallel to the road and on the top side of the support modules; preparing special planting soil and backfilling it into the planting area and the permeable support area; laying permeable paving above the support modules; installing tree pit covers above the root balls and connecting the tree pit covers to the tensioning components. This application can improve the problems of limited root growth space for street trees, insufficient root distribution range, root damage to roads and pipelines, and poor permeability and aeration of root soil due to long-term pressure.

Description

Technical Field

[0001] This application relates to the technical field of tree planting, and in particular to a method for planting street trees that expands the root system. Background Technology

[0002] Street trees are trees planted along both sides of roads in a regular pattern. They are an important part of urban green infrastructure and play a vital role in creating a beautiful environment and improving the ecological environment. Currently, the main planting method for street trees is pit planting, with the pits typically being square planting pits measuring 1.5 x 1.5 meters. This planting method has the following problems: 1. The tree pit is small, resulting in insufficient root distribution and a lack of guidance for root growth, leading to a "top-heavy" phenomenon in the trees as they grow, which easily causes them to fall over; 2. The effective soil in the tree pit is insufficient, and the soil nutrient content is low; the surrounding area is sealed by hardened paving, and the root soil is subjected to external pressure for a long time, resulting in poor physical and chemical properties such as water permeability and air permeability, which is not conducive to the healthy growth of trees in the long run, resulting in poor flowering quality of flowering trees and failing to fully realize the value of the trees; 3. In South China, trees with well-developed root systems, such as banyan trees, have difficulty growing downwards and can only grow beyond the tree pit to grow on the surface layer, often damaging the pavement of sidewalks and causing the pavement to arch, and some well-developed roots enter municipal pipelines, seriously affecting the safety of municipal pipelines; 4. Due to the limited space for root growth, the anchoring force provided by the roots is insufficient, requiring the long-term installation of tree support frames, which affects the landscape effect and occupies sidewalk space.

[0003] Current methods for improving street tree planting mainly involve enlarging tree pits to improve soil permeability and aeration; removing ground cover or turf planted in the pits and replacing them with pavers or loose pebbles to improve aeration and permeability; and increasing fertilization frequency by improving the soil in small areas within the pits and burying slow-release microbial fertilizers to quickly increase soil nutrients. While these measures can be effective in the short term, they cannot fundamentally solve the problems of limited root growth space, lack of guidance for root growth leading to insufficient root distribution, poor soil physical and chemical properties, and root damage to roads and municipal pipelines. The current street tree planting methods are detrimental to the healthy growth of trees in the long run, fail to fully realize the value of trees, and have some negative impacts on the overall urban landscape; therefore, improvements are needed. Summary of the Invention

[0004] In order to improve the problems of limited root growth space, insufficient root distribution range, poor soil physical and chemical properties, and root damage to roads and pipelines, this application provides a method for planting roadside trees to expand the root system range.

[0005] This application provides a method for planting street trees that expands the root system range, using the following technical solution:

[0006] A method for planting street trees to expand their root system includes the following steps:

[0007] Planting strips for roadside trees are dug along the sides of the road;

[0008] The planting area and permeable support area of ​​each roadside tree are determined by laying out lines and points, and the planting area and the permeable support area are set up alternately.

[0009] A support module is laid at the bottom of the planting strip, and the support module is located within the permeable support area;

[0010] Apply base fertilizer to the bottom of the planting area and cover it with a thin layer of soil;

[0011] Trees were placed within the planting area;

[0012] Pre-embed tensioning components at the four corners of the tree root ball;

[0013] Root barrier boards are laid on both sides of the planting strip parallel to the road and on the top side of the support module.

[0014] Prepare special planting soil and backfill the planting area and the permeable support area with the special planting soil.

[0015] A permeable paving is laid on top of the support module, and the permeable paving is located within the permeable support area;

[0016] Install a tree pit cover over the root ball and connect the tree pit cover to the tensioning assembly.

[0017] By adopting the above technical solutions, the alternating planting and permeable support zones improve soil aeration and permeability, which is conducive to healthy root growth. Laying support modules enhances soil structural stability and load-bearing capacity while ensuring permeability. Applying base fertilizer to the bottom of the planting area and covering it with a thin layer of soil improves soil nutrient status, promotes nutrient absorption by roots, and accelerates healthy tree growth. Pre-embedded tensioning components connected to tree pit covers enhance tree stability. The laying of root barriers restricts the tendency of roots to grow to both sides of the planting strip, reducing damage to the sidewalk pavement layer and preventing pavement arching. This encourages roots to grow downwards, increasing root depth and significantly expanding the root distribution range of street trees, enhancing tree stability and reducing the risk of lodging. The use of specialized planting soil optimizes soil structure and further improves the root growth environment. The permeable pavement structure not only ensures rainwater infiltration but also maintains pedestrian convenience and safety. This application achieves healthy growth of street trees while also meeting urban aesthetic needs, solving several defects in existing street tree planting methods.

[0018] Optionally, before laying the support module, a drainage pipe is pre-embedded on the bottom side of the planting strip, and multiple water inlet holes are opened on the periphery of the drainage pipe.

[0019] By adopting the above technical solution, excess rainwater in the soil enters the drainage pipe through the water inlet hole, which can significantly improve the drainage performance in the planting strip, reduce the root system from being soaked in water for a long time, improve root aeration, and thus promote the healthy growth of the roadside tree roots and reduce root diseases caused by excessive water.

[0020] Optionally, after laying the root barrier board, a vertical deep ventilator is pre-embedded, and multiple ventilator holes are opened around the periphery of the deep ventilator.

[0021] By adopting the above technical solution, deep aeration pipes can significantly improve the aeration of the planting strip, promote oxygen supply to the roots, thereby enhancing root vitality and improving the overall health and growth rate of the trees. The design of deep aeration pipes effectively solves the problem of poor soil aeration in traditional planting methods.

[0022] Optionally, the support module includes a module base plate, a module top plate, and a limiting rod. The module base plate and the module top plate are inserted into each other. The module base plate has multiple adjustment holes. The limiting rod is inserted into the adjustment holes and locks the positions of the module base plate and the module top plate.

[0023] By adopting the above technical solution, when the limiting rod is inserted into different adjustment holes, the position of the module base plate and the module top plate can be locked, thereby locking the height of the support module, which makes it easy to adjust the support module to a suitable height.

[0024] Optionally, the limiting rod includes a first rod and a second rod, the first rod and the second rod are threaded together, the first rod and the second rod are respectively inserted into the adjustment holes of the adjacent module base plate, and the ends of the first rod and the second rod are connected to limiting rings, the limiting rings abutting against the module top plate.

[0025] By adopting the above technical solution, when the first and second insert rods are turned, the length of the limiting insert rod can be changed, so that the limiting retaining ring abuts against the upper plate of the module, thereby adjusting the spacing between adjacent support modules. The limiting insert rod can apply force to the adjacent support modules, making the spacing between the adjacent support modules more stable.

[0026] Optional steps for backfilling with special planting soil include:

[0027] The first backfilling is done with special planting soil, and the backfill height covers the support module and part of the soil ball.

[0028] Water the planting area thoroughly.

[0029] After the first backfill of special planting soil has settled naturally, a second backfill of special planting soil is carried out, with the backfill height higher than the ground level. Then, the second backfill soil is allowed to settle until its height is lower than the ground level.

[0030] By adopting the above technical solution, the double backfilling with specialized planting soil ensures that the soil fully fills the gaps in the planting area and the permeable support area. This reduces the settlement of the planting soil after watering, which can lead to gaps around the root ball and enhances the stability of the trees. Backfilling with specialized planting soil also facilitates the stable installation of permeable paving and reduces soil erosion, thereby improving the overall stability of the street trees.

[0031] Optionally, the tensioning assembly includes anchor bolts and cables, with the anchor bolts inserted at the four corners of the root ball and the cables connected to the anchor bolts and the tree pit cover, respectively.

[0032] By adopting the above technical solution, the anchor bolt is connected to the tree pit cover plate through the cable, which can effectively provide a stable pulling force, stabilize the soil above the root ball, ensure the stability of the tree during the growth process, and reduce the tree falling over due to unstable root system.

[0033] Optionally, the tree pit cover includes a cover body with a recessed hole; the tensioning assembly further includes an insertion tube inserted into the recessed hole, the top end of the insertion tube having an abutment edge, the side wall of the recessed hole having a support edge, and the abutment edge of the insertion tube pressing against the support edge.

[0034] By adopting the above technical solution, the insertion tube is inserted from the sinkhole to the perimeter of the soil ball, and the abutment edge is pressed against the support edge, which can improve the stability of the cover plate body, and thus improve the stability of the soil ball.

[0035] Optionally, the cover plate body is connected to a guide rod, and the cable passes between the support edge and the abutment edge after passing around the guide rod, with the support edge and the abutment edge pressing the cable together.

[0036] By adopting the above technical solution, the cable passes between the support edge and the abutment edge after bypassing the guide rod. Then, the cable is tightened to keep it in a taut state, and the support edge presses the cable against the abutment edge, thereby keeping the cable in a taut state and improving the stability of the cover plate body.

[0037] Optionally, a cap is threaded into the recessed hole, the cap abuts against the top of the insertion tube, and multiple venting and water guiding holes are provided on the circumferential sidewalls of both the cap and the insertion tube.

[0038] By adopting the above technical solution, the cap is screwed into the recessed hole, and the cap is pressed tightly against the top of the insertion tube, thereby fixing the position of the insertion tube and making its position more stable. The air and water drainage holes of the cap and the insertion tube can facilitate the delivery of water and air to the soil ball, which is beneficial to root growth.

[0039] In summary, this application includes at least one of the following beneficial effects:

[0040] 1. Laying support modules enhances soil structure stability and load-bearing capacity while ensuring permeability. Applying base fertilizer to the bottom of the planting area and covering it with a thin layer of soil improves soil nutrient status, promotes root nutrient absorption, and accelerates healthy tree growth. The use of specialized planting soil optimizes soil structure and further improves the root growth environment.

[0041] 2. The installation of root barrier boards restricts the tendency of roots to grow to both sides of the planting strip, reduces the damage to the sidewalk pavement layer that could cause the pavement to arch, promotes the downward development of roots, increases the depth of root penetration, significantly expands the root distribution range of street trees, enhances tree stability, and reduces the risk of falling over.

[0042] 3. By pre-embedding tensioning components and connecting them to the tree pit cover, a stable tensile force can be effectively provided, which can stabilize the root ball and the soil above the root ball, ensuring the stability of the tree during its growth. Attached Figure Description

[0043] Figure 1 This is a top view of the road and planting strip structure in Embodiment 1 of this application;

[0044] Figure 2 This is a schematic diagram of the planting area and the permeable support area in Embodiment 1 of this application;

[0045] Figure 3 This is a partial structural diagram of the planting area and the permeable support area in Embodiment 1 of this application;

[0046] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure of AA in the middle section;

[0047] Figure 5 This is a schematic diagram of a partial structure of the planting area in Embodiment 2 of this application;

[0048] Figure 6 This is a cross-sectional structural diagram of the tree pit cover plate of Embodiment 2 of this application;

[0049] Figure 7 This is a partial structural diagram of Embodiment 2 of this application highlighting the cap and the insertion tube;

[0050] Figure 8This is a cross-sectional structural diagram of the support module in Embodiment 3 of this application;

[0051] Figure 9 This is a cross-sectional structural diagram of the adjacent support module in Embodiment 3 of this application.

[0052] Explanation of reference numerals in the attached diagram: 1. Planting strip; 11. Planting area; 12. Permeable support area; 2. Support module; 21. Module base plate; 211. Adjustment hole; 22. Module top plate; 23. Limiting rod; 231. First rod; 232. Second rod; 24. Limiting retaining ring; 3. Permeable paving; 4. Root barrier plate; 5. Deep aeration pipe; 6. Drainage pipe; 7. Tree pit cover; 71. Cover body; 711. Sloping hole; 712. Support edge; 72. Cover; 73. Guide rod; 8. Tensioning assembly; 81. Anchor bolt; 82. Cable; 83. Insertion pipe; 831. Abutment edge; 100. Road; 200. Tree; 201. Root ball. Detailed Implementation

[0053] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0054] Example 1:

[0055] Embodiment 1 of this application provides a method for planting street trees to expand the root system range, including the following steps:

[0056] Step S1: Refer to Figure 1 Soil samples were collected from the planting sites of roadside trees in stratified layers, and soil physicochemical indicators were tested to analyze soil quality. The tested soil physicochemical indicators included pH, electrical conductivity, organic matter content, hydrolyzable nitrogen content, available phosphorus content, available potassium content, density, bulk density, and aeration.

[0057] Step S2: Reference Figure 1 and Figure 2 Planting strips 1 for roadside trees are excavated on both sides of road 100. In this embodiment, the planting strip 1 is at least 1.2m wide and at least 1.2m deep. After excavating the planting strip 1, the bottom of the planting strip 1 is trimmed and leveled. The excavation process is carried out using an excavator to ensure excavation efficiency and quality.

[0058] Step S3: Lay out the lines and determine the planting area 11 and the permeable support area 12 for each roadside tree, so that the planting area 11 and the permeable support area 12 are set alternately.

[0059] Step S4: Reference Figure 2 and Figure 3The drainage pipe 6 is pre-buried at the bottom of the planting strip 1. Multiple water-permeable holes are opened on the circumferential side wall of the drainage pipe 6. Water in the soil enters the drainage pipe 6 through the water-permeable holes, thereby draining excess water from the soil and reducing the possibility of tree root rot caused by excessive soil moisture, thus facilitating tree growth.

[0060] Step S5: Reference Figure 3 and Figure 4 Support modules 2 are laid at the bottom of planting strip 1 and positioned within permeable support area 12. Support modules 2 are specifically constructed using I-shaped bricks formed by cement casting. Multiple I-shaped bricks are stacked at the bottom of planting strip 1, with three layers stacked upwards. The I-shaped bricks on the same horizontal plane are spaced apart. The I-shaped bricks possess high structural strength and also exhibit a certain degree of permeability.

[0061] Step S6: Apply base fertilizer to the bottom side of planting area 11 and cover it with a thin layer of soil, the soil covering thickness being about 1 cm.

[0062] Step S7: Place the tree 200 in the planting area 11, and place the root ball 201 of the tree 200 above the thinner layer of soil covered in step S6.

[0063] Step S8: Set tensioning components 8 at the four corners of the soil ball 201. The tensioning components 8 include anchor rods 81 and cables 82. The anchor rods 81 are inserted obliquely into the soil at the four corners of the soil ball 201. The cables 82 are fixedly connected to the top of the anchor rods 81.

[0064] Step S9: Root barrier boards 4 are laid on both sides of the planting strip 1 parallel to the road 100 and on the top side of the support module 2. The root barrier boards 4 can overlap each other. The root barrier board 4 includes a geogrid and a geotextile, which are bonded together to form the root barrier board 4. The root barrier board 4 can reduce the root growth of trees 200 into the road 100 while ensuring its water and air permeability.

[0065] Step S10: Prepare and backfill with specialized planting soil. The specialized planting soil includes compost from green waste, humus, organic fertilizer, expanded clay pebbles, and ordinary planting soil.

[0066] The first backfilling of special planting soil will cover the support module 2 and part of the soil ball 201, and the special planting soil will be filled between adjacent support modules 2.

[0067] Then, water the planting strip 1 thoroughly. After the first backfill of special planting soil settles naturally, backfill the special planting soil a second time, with the backfill height higher than the ground level. Then, allow the second backfill soil to settle to a height slightly lower than the ground level.

[0068] Step S11: Lay the permeable paving 3 above the root barrier plate 4 on the top side of the support module 2, i.e., the permeable paving 3 is located within the permeable support zone 12. The permeable paving 3 consists of multiple permeable concrete bricks, each with 4-16 permeable holes. The permeable paving 3 has good air permeability and water permeability, is durable, and does not affect pedestrian activity. The deep aeration pipe 5 should pass through the permeable paving 3, and the deep aeration pipe 5 is flush with the top side of the permeable paving 3. Due to the root barrier plate 4, the tree roots are encouraged to grow into and downwards into the permeable support zone 12, increasing the root growth range. The deep aeration pipe 5 can improve the air permeability and water permeability of the deeper layers of the permeable support zone 12, which is beneficial to root growth.

[0069] Step S12: Cover the top side of the root ball 201 of the tree 200 with a tree pit cover plate 7, and fix the cable 82 to the tree pit cover plate 7. Each tree 200 corresponds to two tree pit cover plates 7, and each tree pit cover plate 7 corresponds to two cables 82. The two tree pit cover plates 7 enclose the bottom of the trunk of the tree 200.

[0070] Step S13: Dilute the root-promoting agent to 600-800 times and then water it around the trees.

[0071] The implementation principle of the method for planting roadside trees to expand the root system range in Embodiment 1 of this application is as follows: through a series of steps including testing and analyzing soil physicochemical indicators and soil quality, excavating roadside tree planting strip 1, laying out and fixing points, setting drainage pipes 6, laying support modules 2, applying base fertilizer, placing trees 200, pre-burying tensioning components 8, laying root barrier boards 4, backfilling special planting soil, laying permeable paving 3, installing tree pit covers 7, and irrigating root-promoting agents, the root system range of the trees 200 is effectively expanded, the possibility of the roots damaging the sidewalk pavement layer is reduced, and the durability of the pavement is improved.

[0072] Example 2:

[0073] Embodiment 2 of this application provides a method for planting street trees that expands the root system. The difference between Embodiment 2 and Embodiment 1 is that:

[0074] Step S12 also specifically includes:

[0075] refer to Figure 5 and Figure 6 The tree pit cover 7 includes a cover body 71, a guide rod 73 and a cap 72, and the tensioning assembly 8 also includes an insertion tube 83.

[0076] refer to Figure 6 and Figure 7The cover plate body 71 has recessed holes 711 at the four corners. The insertion tube 83 passes through the recessed holes 711 and goes down to be located around the soil ball 201. The top of the insertion tube 83 has an abutment edge 831. The side wall of the recessed hole 711 has a support edge 712. The abutment edge 831 of the insertion tube 83 can press the support edge 712.

[0077] refer to Figure 6 and Figure 7 The guide rod 73 is fixedly connected to the cover plate body 71. The guide rod 73 is horizontally set. The cable 82 passes around the guide rod 73 and then between the support edge 712 and the abutment edge 831. The end of the cable 82 protrudes from the side of the cover plate body 71. Pulling the end of the cable 82 tightens the cable 82. Then, the insertion tube 83 is inserted into the countersunk hole 711, so that the abutment edge 831 and the support edge 712 press the cable 82 together, thereby fixing the cable 82 and keeping it in a taut state at all times.

[0078] refer to Figure 6 and Figure 7 The cap 72 is threadedly connected to the recessed hole 711. Tightening the cap 72 allows it to press firmly against the top of the insertion tube 83, making the connection between the insertion tube 83 and the cap body 71 more secure. Both the cap 72 and the insertion tube 83 are hollow, and multiple ventilation and drainage holes are provided on their circumferential sidewalls. These holes improve the air permeability around the root ball 201, which is beneficial for the root growth of the tree 200. When it rains, some rainwater seeps into the root ball 201 of the tree 200, while some enters the soil around the root ball 201 through the ventilation and drainage holes, facilitating water absorption by the tree's roots.

[0079] The implementation principle of the method for planting street trees with expanded root system range according to Embodiment 2 of this application is as follows: In step S12, firstly, the cable 82 passes over the guide rod 73 and then over the top side of the support edge 712. Then, the cable 82 is tightened, and then the insertion tube 83 is inserted into the recessed hole 711. Then, the abutment edge 831 presses the cable 82 and the support edge 712 together. Finally, the cap 72 is screwed into the recessed hole 711, so that the cap 72 presses the abutment edge 831 of the insertion tube 83 together.

[0080] Example 3:

[0081] Embodiment 3 of this application provides a method for planting street trees that expands the root system. The difference between Embodiment 3 and Embodiment 2 is that:

[0082] refer to Figure 8 and Figure 9The support module 2 includes a module base plate 21, a module top plate 22, a limiting rod 23, and a limiting retaining ring 24. The module top plate 22 has a slot, and the module base plate 21 is inserted into the slot of the module top plate 22, so that the module base plate 21 and the module top plate 22 are close to or far from each other, which can adjust the height of the support module 2.

[0083] refer to Figure 8 and Figure 9 The limiting rod 23 includes a first rod 231 and a second rod 232. The first rod 231 is inserted into the second rod 232, and the first rod 231 and the second rod 232 are threaded together. The module base plate 21 has multiple adjustment holes 211 along the vertical direction, and both the first rod 231 and the second rod 232 can be inserted into the adjustment holes 211. Multiple limiting retaining rings 24 are provided, and the limiting retaining rings 24 are fixedly connected to the ends of the first rod 231 and the second rod 232 respectively.

[0084] The implementation principle of the method for planting roadside trees to expand the root system range in Embodiment 3 of this application is as follows: When the first insertion rod 231 and the second insertion rod 232 are inserted into the adjustment hole 211 of the bottom plate 21 of the adjacent module, the upper plate 22 of the adjacent module can abut against the first insertion rod 231 and the second insertion rod 232 respectively, thereby limiting the height of the support module 2. By twisting the first insertion rod 231 and the second insertion rod 232, the length of the limiting insertion rod 23 can be adjusted, thereby adjusting the spacing between the adjacent support modules 2.

[0085] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A method of planting a street tree with an enlarged root zone, characterized in that, Includes the following steps: A planting strip (1) for roadside trees is dug on the side of the road (100); The planting area (11) and the permeable support area (12) of each roadside tree are determined by laying out lines and points, and the planting area (11) and the permeable support area (12) are set up alternately. A support module (2) is laid at the bottom of the planting strip (1), and the support module (2) is located within the permeable support area (12); Apply base fertilizer to the bottom of the planting area (11) and cover with a thin layer of soil; Trees (200) are placed in the planting area (11); Tensioning components (8) are pre-embedded at the four corners of the root ball (201) of the tree (200); Root barrier boards (4) are laid on both sides of the planting strip (1) parallel to the road (100) and on the top side of the support module (2). Prepare special planting soil and backfill it in the planting area (11) and the permeable support area (12); A permeable pavement (3) is laid on top of the support module (2), and the permeable pavement (3) is located within the permeable support area (12); Install a tree pit cover (7) above the root ball (201) and connect the tree pit cover (7) to the tensioning assembly (8); The tensioning assembly (8) includes anchor rods (81) and cables (82). The anchor rods (81) are inserted at the four corners of the soil ball (201), and the cables (82) are connected to the anchor rods (81) and the tree pit cover (7) respectively. The tree pit cover (7) includes a cover body (71) with a recessed hole (711); the tensioning assembly (8) also includes an insertion tube (83) which is inserted into the recessed hole (711). The top end of the insertion tube (83) has an abutment edge (831), and the side wall of the recessed hole (711) has a support edge (712). The abutment edge (831) of the insertion tube (83) presses against the support edge (712). The cover plate body (71) is connected to a guide rod (73). The cable (82) passes around the guide rod (73) and then passes between the support edge (712) and the abutment edge (831). The support edge (712) and the abutment edge (831) press the cable (82) together. The recessed hole (711) is internally threaded with a cap (72), the cap (72) abuts against the top of the insertion tube (83), and the cap (72) and the insertion tube (83) are provided with multiple venting and water guiding holes on their circumferential sidewalls; The support module (2) includes a module base plate (21), a module top plate (22), and a limiting rod (23). The module base plate (21) and the module top plate (22) are inserted into each other. The module base plate (21) has multiple adjustment holes (211). The limiting rod (23) is inserted into the adjustment holes (211) and the limiting rod (23) locks the position of the module base plate (21) and the module top plate (22).

2. The method of claim 1, wherein the method is characterized by, Before laying the support module (2), a drainage pipe (6) is pre-embedded on the bottom side of the planting strip (1), and multiple water inlet holes are opened on the periphery of the drainage pipe (6).

3. The method for planting street trees to expand the root system range according to claim 1, characterized in that, After the root barrier board (4) is laid, a vertical deep air pipe (5) is pre-embedded, and multiple air holes are opened around the deep air pipe (5).

4. The method of claim 1, wherein the method is characterized by, The limiting rod (23) includes a first rod (231) and a second rod (232). The first rod (231) and the second rod (232) are threaded together. The first rod (231) and the second rod (232) are respectively inserted into the adjustment holes (211) of the adjacent module base plate (21). The ends of the first rod (231) and the second rod (232) are connected to limiting rings (24). The limiting rings (24) abut against the module upper plate (22).

5. The method of claim 1, wherein the method is characterized by, The steps for backfilling with special planting soil include: The first backfilling was done with special planting soil, and the backfill height was used to bury the support module (2) and part of the soil ball (201). Water thoroughly within the planting strip (1); After the first backfill of special planting soil has settled naturally, a second backfill of special planting soil is carried out, with the backfill height higher than the ground level. Then, the special planting soil of the second backfill is allowed to settle down to a height lower than the ground level.

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