CN111657091A

CN111657091A - Planting method for greening trees and supporting bracket used for method

Info

Publication number: CN111657091A
Application number: CN202010562005.9A
Authority: CN
Inventors: 陆娅; 陈丽玮
Original assignee: Shanghai Dize Landscape Architecture Design Consulting Co ltd
Current assignee: Shanghai Dize Landscape Architecture Design Consulting Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2020-09-15

Abstract

The invention discloses a planting method of greening trees and a supporting bracket used by the method, which relate to the technical field of urban greening construction and comprise the following steps: s1, preparing necessary instruments and processing the seedlings; s2, digging a planting hole in the area to be planted; s3, paving planting soil, and paving a nutrient soil layer in the planting holes; s4, lifting trees, namely lifting the seedlings by adopting lifting equipment, and inserting the roots of the seedlings into the planting holes; s5, performing support operation, namely, holding and supporting the nursery stock by using a support bracket, stably standing the nursery stock in the planting hole, and removing the hoisting equipment; and S6, backfilling soil in the planting holes, compacting the backfilled soil, and completing seedling planting. The invention has the advantages of realizing the rapid separation of the nursery stock from the hoisting equipment, shortening the dependence time of nursery stock planting on the hoisting equipment and weakening the influence on road traffic.

Description

Planting method for greening trees and supporting bracket used for method

Technical Field

The invention relates to the technical field of urban greening construction, in particular to a greening tree planting method and a supporting bracket for the method.

Background

Urban afforestation is the planting of trees, grass and flowers in cities, covering a certain ground (space) or installing points.

The existing Chinese patent with publication number CN109479603A discloses a method for planting trees in impervious ground suitable for park square tree matrix, which comprises digging or enlarging planting holes according to planting positions before paving on the ground, wherein the main body of the dug planting hole is in the shape of an inverted cone with a small top and a big bottom, when the planting hole passes through the impervious layer and is connected with a pervious area below, laying a coarse sand layer at the bottom of the planting hole, when the planting hole does not pass through the impervious layer, laying a gravel layer at the bottom of the planting hole, arranging a ground water pumping pipe, lifting the trees with soil balls during planting, extending a water pipe into the lower part or below of a tree planting soil layer for irrigation, enabling water to flow from bottom to top, mixing with planting soil to form slurry, and releasing the trees to naturally sink to a set height.

By adopting the scheme, when some trees with thicker breast-height diameter are planted, hoisting equipment (such as a crane) is adopted to hoist the trees, the roots of the trees are inserted into the planting holes, and then soil covering operation is carried out; when the root of the tree is stably buried in the soil layer, the hoisting equipment can be loosened. However, when trees are planted on two sides of an urban road by adopting the method, the trees are hoisted by the hoisting equipment for a long time, so that the road can be seriously passed normally, and a part to be improved exists.

Disclosure of Invention

Aiming at the technical problems, the invention aims to provide a planting method for greening trees, which can realize quick separation of seedlings from hoisting equipment, shorten the dependence time of seedling planting on the hoisting equipment and weaken the influence on road traffic.

The technical purpose of the invention is realized by the following technical scheme:

a planting method for greening trees comprises the following steps: s1, preparing necessary instruments and processing the seedlings; s2, digging a planting hole in the area to be planted; s3, paving planting soil, and paving a nutrient soil layer in the planting holes; s4, lifting trees, namely lifting the seedlings by adopting lifting equipment, and inserting the roots of the seedlings into the planting holes; s5, performing support operation, namely, holding and supporting the nursery stock by using a support bracket, stably standing the nursery stock in the planting hole, and removing the hoisting equipment; and S6, backfilling soil in the planting holes, compacting the backfilled soil, and completing seedling planting.

By adopting the technical scheme, the nursery stock is supported by the supporting bracket, so that the nursery stock can be quickly separated from the hoisting equipment, the dependence time of nursery stock planting on the hoisting equipment is shortened, and the influence on road traffic is weakened.

The invention is further configured to: in S2, digging a planting hole according to the depth of the seedling root, deepening to reserve the laying depth of nutrient soil, and laying the nutrient soil layer in the planting hole; and S4, completely placing the root of the seedling into the planting hole, and enabling the bottom of the root of the seedling to contact with the nutrient soil layer.

By adopting the technical scheme, the planting depth of the nursery stock is guaranteed, the stability of the nursery stock after the nursery stock is planted is guaranteed, and aerobic respiration and normal growth of the nursery stock root are guaranteed.

The invention is further configured to: in S3, the nutrient soil component includes 30% perlite or vermiculite, 20% fine sand or 20% fully decomposed granite, 20% peat garden soil, 30% existing soil.

By adopting the technical scheme, sufficient nutrient components are provided for survival of the nursery stock, and normal growth of the nursery stock is favorably ensured.

The invention is further configured to: in S6, water liquid is applied to the backfilled soil during tamping, and the backfilled soil is quickly tamped.

Through adopting above-mentioned technical scheme, apply water liquid in the backfill soil, realize ramming soil fast, promote the planting efficiency of nursery stock.

The invention is further configured to: in S6, the backfilled soil is mixed with garbage compost and/or compost and retted mushroom manure and/or pond sludge.

By adopting the technical scheme, a plurality of fertilizer components are mixed in the backfilled soil, so that sufficient nutrient components are provided for survival of the nursery stock, and normal growth of the nursery stock is ensured.

The invention also aims to provide a support bracket for the planting method of the greening trees, which realizes the stable support of the seedlings and the quick separation of the seedlings from the hoisting equipment, shortens the dependence time of the seedling planting on the hoisting equipment and weakens the influence on the road traffic.

a supporting bracket for a planting method of greening trees comprises supporting rods and supporting heads arranged on the supporting rods, wherein at least three supporting rods are uniformly arranged around a tree at intervals, the supporting heads are in one-to-one correspondence with the supporting rods, piercing tips are arranged at the lower ends of the supporting rods, supporting plates are hinged to one sides of the supporting rods close to the piercing tips, the hinge axes of the supporting plates on the supporting rods are horizontally arranged, and the supporting plates are in one-to-one correspondence with the supporting rods; the supporting head comprises a connector and a propping block, the connector is fixed at the upper end of the supporting rod, the propping block is hinged on the connector, and any propping block props against the seedling trunk; the support bracket for the planting method of the green trees further comprises a holding assembly used for connecting any one of the abutting blocks and holding any one of the abutting blocks on the trunk of the nursery stock.

By adopting the technical scheme, in practical application, the root of the nursery stock is lifted by the lifting equipment and extends into the planting hole; at the moment, the staff can pierce the sharp end of the supporting rod into the ground, meanwhile, the supporting plate is kept horizontal and tightly propped against the ground, the supporting rod can not pierce the ground any more under the supporting of the supporting plate, and the supporting plate can be horizontally tightly propped against the ground under the condition that the supporting rod and the ground have different angles; rotating the abutting block to enable the abutting block to be stably abutted on the seedling trunk; in the same way, the penetrating tip of any supporting rod penetrates into the ground, and any abutting block abuts against the seedling trunk; finally, the worker can hold any one of the supporting blocks tightly on the seedling trunk by means of the holding assembly to complete supporting of the seedling; at this moment, the staff can break away from hoisting equipment with the nursery stock. Through this kind of mode, realize the stable support to the nursery stock to realize the nursery stock and break away from hoisting equipment fast, shorten the nursery stock and plant the time of relying on hoisting equipment, weaken the influence to the road is current.

The invention is further configured to: the enclasping component comprises a first enclasping belt and a first adjustable lock catch, the first enclasping belt sequentially penetrates through any of the abutting blocks, and the first adjustable lock catch is arranged at the two ends of the first enclasping belt in a matched mode and used for adjusting the degree of tightness of the first enclasping belt in an enclasping abutting block.

By adopting the technical scheme, the first clasping belt and the first adjustable lock catch clasp any one of the abutting blocks, so that the stability of the support bracket for the green tree planting method for supporting the nursery stock is ensured, and the support supporting effect of the support bracket for the green tree planting method for supporting the nursery stock with various breast diameters is improved.

The invention is further configured to: the support rod comprises a first support rod, an adjusting sleeve and a second support rod, the first support rod and the second support rod penetrate into the adjusting sleeve from two ends of the adjusting sleeve respectively, the first support rod and the second support rod are both in threaded connection with the adjusting sleeve, the penetrating tip and the support plate are both located on one side, away from the adjusting sleeve, of the first support rod, and the support head is located on one side, away from the adjusting sleeve, of the second support rod.

By adopting the technical scheme, in actual application, the length of the supporting rod can be adjusted by a worker according to the breast height and the height of different seedlings, and the applicability of the supporting bracket for the greening tree planting method to various different seedling planting operations is greatly improved.

The invention is further configured to: the middle part of bracing piece articulates there is the stabilizer bar, the one end that second branch was kept away from to the stabilizer bar articulates there is the stabilizing head, the stabilizing head supports tightly on the nursery stock trunk, just one side of stabilizing the nearly nursery stock of head rest sets up anti-skidding portion, just stabilizer bar, stabilizing the head two and second branch one-to-one.

By adopting the technical scheme, in actual application, a worker can incline the stabilizer bar upwards and enable the stabilizer head to collide with the nursery stock; strut the support in-process, the nursery stock sinks at its self gravity, and the stabilizer will support tight nursery stock trunk to stop by antiskid unit that the nursery stock sinks, and cooperate the support of support head to the nursery stock trunk and compress tightly, the nursery stock itself will hardly take place to rock, further guarantees the nursery stock and breaks away from the stability behind the lifting device, helps guaranteeing to plant the normal clear of operation behind the nursery stock breaks away from the lifting device.

The invention is further configured to: the bearing plate is also provided with a stabilizing bolt, the stabilizing bolt penetrates through the bearing plate and is in threaded connection with the bearing plate, and the end part of the stabilizing bolt is arranged in a conical shape.

Through adopting above-mentioned technical scheme, after the bearing plate supported tight ground, the staff can the rotating stabilizer bolt to make stabilizer bolt penetrate ground, further reduce the condition emergence of relative motion between bracing piece and the ground, further guarantee the nursery stock and break away from the stability behind the lifting device, help guaranteeing that the nursery stock breaks away from the normal clear of planting operation behind the lifting device.

Compared with the prior art, the invention has the following beneficial effects:

(1) the nursery stock is supported by the support bracket, so that the nursery stock can be quickly separated from the hoisting equipment, the dependence time of nursery stock planting on the hoisting equipment is shortened, and the influence on road traffic is weakened;

(2) the method comprises the steps of mixing 30% of perlite or vermiculite, 20% of fine sand or 20% of completely decomposed granite, 20% of peat garden soil and 30% of existing soil to form nutrient soil, and mixing garbage compost and/or compost retting mushroom shaving fertilizer and/or pond sludge in backfilled soil to provide sufficient nutrient components for seedling survival, so that normal growth of seedlings is greatly guaranteed;

(3) the degree of tightness of the first enclasping block is adjusted by the cooperation of the first enclasping belt and the first adjustable lock catch, and the supporting rod is set to be a length-adjustable structure, so that the applicability of the supporting bracket for the planting method of the green trees to various nursery stocks is greatly improved, and the stability of supporting the nursery stocks is favorably ensured;

(4) the supporting block is tightly held on the seedling trunk through the matching of the first holding belt and the first adjustable lock catch, and the lower side of the seedling trunk is supported by the stabilizing rod and the stabilizing head; when planting nursery stocks without soil balls, workers can adjust the height of the nursery stocks, tighten the wrapping belts and tightly hold the supporting blocks; moreover, the nursery stock sinks under the self gravity, the stabilizing head tightly supports the trunk of the nursery stock and prevents the nursery stock from falling, so that the applicability to various nursery stock planting operations is improved, the stability of supporting the nursery stock is improved, and the condition that the nursery stock greatly shakes in the supporting process is reduced.

Drawings

FIG. 1 is a schematic flow chart of a method for planting green trees according to an embodiment;

FIG. 2 is a schematic axial view of a supporting frame structure for a planting method of green trees according to the second embodiment;

FIG. 3 is an enlarged view of a portion A of FIG. 2, which mainly shows the structure of the first clasping assembly;

fig. 4 is an enlarged view of a portion B of fig. 2, which mainly shows the structure of the second clasping assembly.

Reference numerals: 1. a support bar; 11. a first support bar; 111. piercing the tip; 112. a support plate; 1121. a stabilizing bolt; 12. an adjustment sleeve; 13. a second support bar; 2. a support head; 21. a connector; 22. a propping block; 221. tightly abutting the bulge; 3. a first clasping assembly; 31. a first hugging belt; 32. a first adjustable latch; 4. a stabilizer bar; 5. a stabilizing head; 51. an anti-slip portion; 511. a stabilizing projection; 6. a second clasping assembly; 61. a second hugging belt; 62. a second adjustable latch.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.

The first embodiment is as follows:

referring to the attached figure 1, the planting method of the greening trees comprises the following steps:

s1, preparing necessary instruments including a crane, a support bracket, a spade, a water storage vehicle, a transport vehicle and an excavator, and surveying and making a safe and rapid transport route on the spot according to local roads and traffic conditions;

selecting nursery stocks dug in cloudy days and carrying out subsequent planting operation on the nursery stocks; wherein, when transplanting in summer, transportation is preferably carried out in the evening or in the morning, and the transportation and the planting must be carried along with the transportation;

in the seedling lifting operation, the diameter of the soil ball is kept 6-8 times of the breast diameter, the soil ball part of the nursery stock with the soil ball is protected, and any one of a hemp rope net, non-woven fabrics, a plastic film and the like including the soil ball part of the nursery stock can be utilized to keep the soil ball intact;

processing the nursery stock, pre-thinning the nursery stock, cutting short and processing the wound of the trunk, binding the trunk with a straw rope, and binding the main branches to reduce the water evaporation in the transplanting process;

in the seedling conveying operation, when the seedlings are too tall and the line is overhead on the conveying line, the seedlings must be placed at a certain inclination angle, and meanwhile, in order to prevent the lower branches from being damaged, a bracket is arranged on a conveying vehicle to support the seedlings; in summer, under the condition of daytime transportation, the nursery stock is shaded, and the water is sprayed to the leaf surface; in transportation, transpiration inhibitor is sprayed.

And S2, digging holes, namely digging the planting holes by adopting an excavator according to the root depth and the root size of the nursery stock, and trimming the planting holes by adopting tools such as shovels and the like. Wherein, the planting hole is deepened, the laying depth of the nutrient soil is reserved, and the reserved depth is 15-20cm, preferably 18 cm; the diameter of the planting hole is widened, so that the distance between the root of the seedling or the soil ball part of the seedling and the edge of the planting hole is 50-80cm, and a manual operation space is reserved.

S3, paving planting soil, paving a nutrition soil layer in the planting holes, paving the nutrition soil layer with the thickness of 18cm, and compacting the nutrition soil layer. Wherein the nutrient soil components of the nutrient soil layer comprise 30% of perlite or vermiculite, 20% of fine sand or 20% of completely decomposed granite, 20% of peat garden soil and 30% of existing soil.

S4, lifting the trees, lifting the seedlings on the transport vehicle by adopting lifting equipment, inserting the roots of the seedlings into the planting holes, and keeping the seedlings upright;

meanwhile, according to the depth requirement of the seedling soil ball, the seedling is placed in the pit, and the planting depth is consistent with the depth of the original root system of the seedling. In the implementation, the nursery stock with the soil balls is taken as a protection measure for removing the soil balls.

S5, performing support operation, namely, holding and supporting the nursery stock by using a support bracket, stably standing the nursery stock in the planting hole, and removing the hoisting equipment;

after the hoisting equipment is removed, pruning is carried out on the nursery stock, on one hand, the damaged branches in the process of hanging transportation and hoisting are pruned; on the other hand, strong pruning must be performed to transplant a large tree in an unsuitable seedling growing season to reduce water evaporation, reduce the burden on the root system and maintain the balance in the tree body.

And S6, backfilling soil in the planting holes, compacting the backfilled soil, applying water liquid, and rapidly compacting the backfilled soil to finish the planting of the seedlings. Wherein, the backfilled soil is uniformly mixed with any one of base fertilizers such as garbage compost, compost retted mushroom shaving fertilizer, pond sludge and the like.

Simultaneously, evenly place permeability cell and observation tube around the plant pit when backfilling soil, the permeability cell can do benefit to root and the outside better breathing situation of keeping, and the observation tube can observe whether ponding of root, also can pour into the root through the observation tube with the growth liquid. In the implementation, the ventilation pipe can be made of a perlite mesh bag, and the observation pipe can be made of a PVC pipe.

S7, nursing, using soil after watering and planting as a water retaining weir which is large enough and tamped to prevent water leakage, watering for many times within one week of planting to ensure that the soil around the nursery stock is permeable, wherein the preferable watering times are 3 times in the implementation; the supporting condition is timely checked after watering within 24 hours after planting for the first time, and the trees are found to be inclined or loose and are timely straightened and reinforced.

Example two:

referring to fig. 2, a support bracket for a planting method of green trees is used for supporting and supporting nursery stocks. The tree pruning machine comprises a support rod 1 and at least three support heads 2 arranged on the support rod 1, wherein the support rods 1 are uniformly arranged around a tree at intervals; the supporting head 2 comprises a connector 21 and a propping block 22, the upper end of the supporting rod 1 penetrates into the connector 21 and is fixed with the connector 21, the propping block 22 is hinged on the connector 21, and any propping block 22 props against the seedling trunk; the support bracket for the planting method of the green trees further comprises a first holding component 3 which is used for connecting any one of the supporting blocks 22 and holding any one of the supporting blocks 22 on the trunk of the seedling.

In the practical application, the staff can support the block 22 of supporting of arbitrary support head 2 tightly on the nursery stock trunk to with the help of holding the subassembly and all holding tightly any block 22 of supporting tightly on the nursery stock trunk, simultaneously, make the lower extreme of arbitrary bracing piece 1 support tightly subaerial, thereby strut the support operation to the nursery stock.

Referring to the drawings, the structure of any one of the support rods 1 is the same, and the description will now be given by taking one of the support rods 1 as an example. The supporting rod 1 comprises a first supporting rod 11, an adjusting sleeve 12 and a second supporting rod 13, the first supporting rod 11 and the second supporting rod 13 penetrate into the adjusting sleeve 12 from two ends of the adjusting sleeve 12 respectively, and the first supporting rod 11 and the second supporting rod 13 are both in threaded connection with the adjusting sleeve 12. The second support rod 13 is located at the upper side of the support rod 1, and the connector 21 is fixed at the upper end of the first support rod 11. The lower end of the first supporting rod 11 is coaxially formed with a piercing tip 111, one side of the first supporting rod 11 close to the piercing tip 111 is hinged with a supporting plate 112, and the hinge axis of the supporting plate 112 on the supporting rod 1 is horizontally arranged. The support plate 112 is provided with a stabilizing bolt 1121, the stabilizing bolt 1121 penetrates through the support plate 112 and is in threaded connection with the support plate 112, the end of the stabilizing bolt 1121 is arranged in a conical shape, and one stabilizing bolt 1121 is arranged at each of four corners of the support plate 112.

In practical application, the length of the supporting rod 1 is adjusted by the diameter at breast height and height of the nursery stock of a worker, and an appropriate angle between the supporting rod 1 and the ground is selected; then, the piercing tip 111 of the first supporting rod 11 pierces the ground, and the supporting plate 112 is made horizontal and abuts against the ground; finally, the worker may rotate the stabilizing bolt 1121 and pierce the stabilizing bolt 1121 into the ground to reduce slippage between the support plate 112 and the ground.

Referring to fig. 2 and 3, any one of the abutting blocks 22 abuts against one side of the seedling trunk to abut against the protrusion 221, two of the abutting protrusions 221 are arranged on one side of the abutting block 22 abutting against the seedling trunk at intervals along the horizontal direction, and anti-skid lines are formed on any one of the abutting protrusions 221. The first subassembly 3 of hugging closely includes first hugging closely area 31 and first adjustable hasp 32, and first hugging closely area 31 runs through arbitrary in proper order support the piece 22, and first adjustable hasp 32 cooperation sets up in the both ends department of first hugging closely area 31 length and is used for adjusting the first tightness degree of hugging closely area 31 and hugging closely and support piece 22. In practical application, a worker can tighten the first clasping belt 31 by means of the first adjustable lock 32, and any one of the propping blocks 22 can be stably clasped on the seedling trunk; meanwhile, the two abutting protrusions 221 on any abutting block 22 abut against the seedling trunk, so that the contact area between the abutting block 22 and the seedling trunk is ensured.

Further, referring to fig. 2 and 4, the middle part of the second branch 13 is hinged with a stabilizer bar 4, one end of the stabilizer bar 4 away from the second branch 13 is hinged with a stabilizer head 5, the stabilizer head 5 abuts against the nursery stock trunk, one side of the stabilizer head 5 close to the nursery stock is provided with an anti-skid part 51, and the stabilizer bar 4 and the stabilizer head 5 are in one-to-one correspondence with the second branch 13. The anti-skid part 51 comprises a stabilizing protrusion 511 which is formed and arranged at one side of the stabilizing head 5, which is abutted to the nursery stock trunk, and two stabilizing protrusions 511 are arranged at intervals along the horizontal direction at one side of the stabilizing head 5, which is abutted to the nursery stock trunk, and anti-skid lines are formed on any stabilizing protrusion 511. Be connected with the second between the three stable head 5 and hug closely subassembly 6, the second is embraced closely subassembly 6 and is embraced closely area 61 and the adjustable hasp 62 of second including the second, and the second is embraced and is tightly taken 61 and run through arbitrary in proper order stabilize head 5, the cooperation of the adjustable hasp 62 of second sets up in the second and embraces the both ends department of tightly taking 61 length and be used for adjusting the second and embrace the elasticity degree that the area 61 was embraced and is tightly stabilized head 5.

After the first clasping component 3 clasps any one of the abutting blocks 22 on the seedling trunk stably, a worker can rotate the stabilizing rod 4 to enable the stabilizing head 5 to abut on the seedling trunk, penetrate any one stabilizing head 5 through the second clasping belt 61 at one time, and clasp the stabilizing head 5 on the seedling trunk by means of the second adjustable lock catch 62; at this moment, work can break away from lifting device with the nursery stock, and the nursery stock sinks at its self gravity, supports tight piece 22 and stabilizer 5 and will support tight nursery stock trunk to prevent the nursery stock and sink, simultaneously, the nursery stock itself will hardly take place to rock under supporting of supporting tight piece 22 and stabilizer 5, help guaranteeing that the nursery stock breaks away from normal the going on of planting operation behind the lifting device.

The implementation principle of the above embodiment is as follows: in practical application, a worker can use the crane to lift the nursery stock and ensure that the root of the nursery stock is inserted into the planting hole; then, the worker can tightly press the pressing block 22 of any supporting head 2 against the seedling trunk, tighten the first clasping belt 31 by means of the first adjustable lock catch 32, and stably clamp any pressing block 22 against the seedling trunk; subsequently, the worker can rotate the stabilizer bar 4 to enable the stabilizer bar 5 to abut against the seedling trunk, penetrate any one stabilizer bar 5 through the second holding belt 61 at one time, and hold the stabilizer bar 5 tightly on the seedling trunk by means of the second adjustable lock catch 62; at this moment, work can break away from lifting device with the nursery stock, and the nursery stock sinks at its self gravity, supports tight piece 22 and stabilizer 5 and will support tight nursery stock trunk to prevent the nursery stock and sink, simultaneously, the nursery stock itself will hardly take place to rock under supporting of supporting tight piece 22 and stabilizer 5, help guaranteeing that the nursery stock breaks away from the normal operation of planting after lifting device, reduce the nursery stock and plant the back vertical degree, and reduce the condition emergence of scraping through the strong wind after the tree planting.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A planting method for greening trees is characterized by comprising the following steps:

s1, preparing necessary instruments and processing the seedlings;

s2, digging a planting hole in the area to be planted;

s3, paving planting soil, and paving a nutrient soil layer in the planting holes;

s4, lifting trees, namely lifting the seedlings by adopting lifting equipment, and inserting the roots of the seedlings into the planting holes;

and S6, backfilling soil in the planting holes, compacting the backfilled soil, and completing seedling planting.

2. A method for planting a green tree according to claim 1, wherein in S2, a planting hole is dug according to the depth of the seedling root, the laying depth of the nutrient soil is reserved, and the nutrient soil layer is laid in the planting hole;

and S4, completely placing the root of the seedling into the planting hole, and enabling the bottom of the root of the seedling to contact with the nutrient soil layer.

3. A method as claimed in claim 1, wherein the nutrient soil component comprises 30% perlite or vermiculite, 20% fine sand or 20% fully decomposed hillock, 20% peat garden soil, 30% existing soil in S3.

4. The method for planting a green tree according to claim 1, wherein in S6, the backfilled soil is compacted quickly by applying water during the tamping of the backfilled soil.

5. The method for planting trees as claimed in claim 1, wherein in S6, the backfilled soil is mixed with garbage compost and/or compost of mushroom and/or pond sludge.

6. A supporting bracket for a planting method of greening trees comprises supporting rods (1) and supporting heads (2) arranged on the supporting rods (1), wherein at least three supporting rods (1) are uniformly arranged around trees at intervals, the supporting heads (2) are in one-to-one correspondence with the supporting rods (1), and the supporting bracket is characterized in that piercing tips (111) are arranged at the lower end of the supporting rods (1), a supporting plate (112) is hinged to one side, close to the piercing tips (111), of each supporting rod (1), the hinge axis of each supporting plate (112) on the corresponding supporting rod (1) is horizontally arranged, and the supporting plates (112) are in one-to-one correspondence with the corresponding supporting rods (1); the supporting head (2) comprises a connector (21) and a propping block (22), the connector (21) is fixed at the upper end of the supporting rod (1), the propping block (22) is hinged on the connector (21), and any propping block (22) is propped against the seedling trunk; the support bracket for the planting method of the green trees further comprises a first holding component (3) which is used for connecting any one of the supporting blocks (22) and holding any one of the supporting blocks (22) on the trunk of the seedling.

7. The support bracket for the planting method of the greening trees as claimed in claim 6, wherein said holding assembly comprises a first holding belt (31) and a first adjustable lock catch (32), said first holding belt (31) sequentially penetrates through any of said abutting blocks (22), said first adjustable lock catch (32) is cooperatively disposed at two ends of the length of the first holding belt (31) and used for adjusting the degree of tightness of the first holding belt (31) holding the abutting blocks (22).

8. A support bracket for a planting method of green trees according to claim 6, characterized in that the support rod (1) comprises a first support rod (11), an adjusting sleeve (12) and a second support rod (13), the first support rod (11) and the second support rod (13) penetrate into the adjusting sleeve (12) from two ends of the adjusting sleeve (12), the first support rod (11) and the second support rod (13) are both in threaded connection with the adjusting sleeve (12), the piercing tip (111) and the support plate (112) are both positioned on one side of the first support rod (11) departing from the adjusting sleeve (12), and the support head (2) is positioned on one side of the second support rod (13) departing from the adjusting sleeve (12).

9. A support bracket for a planting method of green trees according to claim 8, wherein the middle of the support rod (1) is hinged with a stabilizer bar (4), one end of the stabilizer bar (4) far away from the second support rod (13) is hinged with a stabilizer head (5), the stabilizer head (5) is tightly pressed on the trunk of the seedling, one side of the stabilizer head (5) close to the seedling is provided with an anti-slip part (51), and the stabilizer bar (4) and the stabilizer head (5) are in one-to-one correspondence with the second support rod (13).

10. The support bracket for a planting method of green trees according to claim 6, wherein the support plate (112) is further provided with a stabilizing bolt (1121), the stabilizing bolt (1121) penetrates through the support plate (112) and is in threaded connection with the support plate (112), and the end of the stabilizing bolt (1121) is tapered.