JP2002360058A - Method for greening artificial ground - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for greening artificial ground, through which construction or repair can be easily done and water-retention/drainage can be surely made. SOLUTION: This method for greening artificial ground is so designed that artificial ground 1 on a rooftop or the like is made vegetative through planting turf, trees or the like, wherein a root-proofing sheet 6 is laid on the artificial ground 1, a water-retaining means 7 is set on the root-proofing sheet 6, an outflow-preventive sheet 10 is set on the water-retaining means 7, a rigid mesh sheet 11 is set on the outflow-preventive sheet 10, artificial soil 12 is banked on the mesh sheet 11, and turfs 13 are planted on the artificial soil 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for planting turf and trees on an artificial ground such as a rooftop for greening. In particular, the present invention relates to a construction method using a rigid mesh sheet.
The present invention relates to an artificial ground greening method that facilitates rehabilitation.

[0002]

2. Description of the Related Art In recent years, there has been a rapid increase in greening of artificial ground such as rooftops and verandas. By urbanization,
When the ground is covered with buildings or pavement surfaces, rainwater and the like are discharged without penetrating into the ground. In areas other than urban areas where the ground is not covered by buildings or paved surfaces, water is retained in the ground, and when the ground is warmed during summer days, the water retained in the ground evaporates. The so-called heat radiation lowers the temperature near the ground.

However, in urban areas, the ground is covered with buildings and pavements, and there is no water retention in the ground.
Heat release due to evaporation of water cannot be expected, and the temperature near the ground during the daytime in summer increases.

[0004] In addition, asphalt on the concrete or pavement surface of a building has a large heat capacity and radiates the heat absorbed during the daytime at night, thereby increasing the nighttime temperature of the city in summer. This is called the heat island phenomenon, and is also responsible for increasing the number of tropical nights.

In the conventional artificial ground greening method, a root prevention sheet is laid on an artificial ground such as a rooftop, a water retention means is provided on the root prevention sheet, a runoff prevention sheet is provided on the water retention means, and a runoff prevention sheet is provided on the runoff prevention sheet. This is a method of embankment with artificial soil, planting lawns on the artificial soil and greening.

[0006] In this method, the heat island phenomenon is mitigated by transpiration and shading by plants. Also,
Plants mitigate the effects of outside air, thus preventing the deterioration of artificial ground.

[0007]

However, in the conventional artificial ground greening method, when the lawn is removed for repair or the like, there is no support for the lawn from below, so it is difficult to remove the lawn and the repair is troublesome. There is a problem that is.

Further, regarding the water retention means, since drainage is not taken into consideration, there is a case where lawn and trees are rotten due to excessive water retention.

Accordingly, an object of the present invention is to provide an artificial ground greening method which can be easily constructed and repaired and can reliably retain and drain water.

[0010]

Means for Solving the Problems The present invention has been made to achieve the above object, and the invention of claim 1 is to plant turf, trees, etc. on artificial ground such as a rooftop to plant greenery. In the construction method, a root protection sheet is laid on artificial ground, water retention means is provided on the root protection sheet, a runoff prevention sheet is provided on the water retention means, and a rigid mesh sheet is provided on the flowout prevention sheet This is an artificial ground greening method in which artificial soil is embanked on a mesh sheet, and a lawn is planted on the artificial soil for greening.

According to a second aspect of the present invention, the water retention means is formed by arranging bar-shaped sponges in a frame shape vertically and horizontally, retains water in a frame surrounded by the sponges, and drains a predetermined amount or more of water into the frame. The artificial ground greening method according to claim 1, wherein a slit for forming the green ground is formed.

According to a third aspect of the present invention, the mesh sheet is formed in a grid pattern by using a synthetic resin or the like, and is formed to have projections on the front and back surfaces of each intersection thereof. The artificial ground greening method according to claim 1 or 2, wherein the joints of the respective mesh sheets are laid so as to overlap with each other, and the projections of the adjacent mesh sheets are engaged with each other so as not to be shifted laterally.

According to a fourth aspect of the present invention, a tree is placed on a mesh sheet at a position where a tree is to be planted, and a hole for passing a trunk through the mesh sheet and a notch for passing the trunk through the hole are provided so as to cover the root of the tree from above. While forming the formed tree fixing mesh sheet, the root of the tree to be planted is covered with the tree fixing mesh sheet, and the tree fixing mesh sheet and the lower mesh sheet are arranged vertically around the trunk. The artificial ground greening method according to any one of claims 1 to 3, wherein the trees are fixed and the trees are fixed by sandwiching the roots of the trees between upper and lower mesh sheets.

According to a fifth aspect of the present invention, a triangular or quadrangular anchor frame is laid on a mesh sheet at a position where a tree is to be planted, the anchor frame and the mesh sheet are connected, and trees are arranged in the anchor frame. The artificial ground greening method according to any one of claims 1 to 4, wherein the trunk is supported by a tree support supported by an anchor frame, and the tree is fixed.

According to a sixth aspect of the present invention, a reinforcing mesh sheet is disposed on a mesh sheet at a position where a tree is to be planted, in a Y-shape, centering on the position where the tree is to be planted, so that the central portions thereof overlap each other. The artificial ground greening method according to any one of claims 1 to 5, wherein a tree is provided at a central portion thereof, and the tree is supported by a tree support engaged and supported by each reinforcing mesh sheet.

According to a seventh aspect of the present invention, an embankment member made of styrofoam is laid on a part of the laid mesh sheet so as to form a higher tree planting pit, and the tree planting material is vertically penetrated into a position where the embankment member should be planted. The artificial ground greening method according to any one of claims 1 to 6, wherein a hole is formed, a tree is planted in the tree planting hole, artificial soil is filled, and a lawn is planted on the embankment member.

According to the invention of claim 8, a cut hole for a water tank for forming a pond is formed facing the step of the embankment member made of polystyrene foam, and the front surface of the cut hole for the water tank facing the step is transparent. The artificial ground greening method according to claim 7, which is covered with an acrylic plate.

[0018]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic view showing a basic structure to which an artificial ground greening method according to a preferred embodiment of the present invention is applied.

As shown in FIG. 1, the artificial ground greening method of the present invention is mainly used to alleviate the heat island phenomenon that occurs in an urban area in the summer season. This is a method of planting trees and trees to make them green.

The artificial ground 1 has a waterproof layer 3 provided on a slab concrete 2 provided at the top of a building, and a protective concrete 4 provided on the waterproof layer 3. The surface of the protective concrete 4 is appropriately inclined so that rainwater or the like is drained from a drain pit (not shown in FIG. 1) provided in the artificial ground 1. An expansion joint 5 is provided between adjacent protective concretes 4. The expansion joint 5 is a joint that absorbs expansion and contraction of the protection concrete 4 due to a change in the temperature of the outside air, and prevents the protection concrete 4 from cracking. Since the root of the plant may enter the expansion joint 5 and break the waterproof layer 3, root prevention measures are indispensable.

First, a root protection sheet 6 for preventing roots from entering the waterproof layer 3 is laid on the protective concrete 4 of the artificial ground 1. The root protection sheets 6 are glued together with an overlap width of 150 mm or more. As the root prevention sheet 6, for example, a laminate of polyethylene and a foamed polyethylene sheet is used, and also has a waterproof function. The thickness of the root protection sheet 6 is about 2 mm.

On each root prevention sheet 6, a water retaining means 7 is provided. The water retaining means 7 includes, for example, rod-shaped sponges 7a and 7b.
Are arranged in a frame shape vertically and horizontally, and the sponges 7a,
A slit 8 for retaining water in a frame surrounded by 7b... And draining a predetermined amount or more of water is formed in the frame. The slit 8 may be formed along the longitudinal direction of the bar-shaped sponges 7a, 7b,..., Or may be formed along the transverse direction.

The rod-shaped sponges 7a, 7b,.
A square having a cross section of 20 mm × 20 mm is used. An adhesive layer 9 is provided on the bottom surface of each of the sponges 7a, 7b,... So that the sponges 7a, 7b,. The length L of one side of the frame is about 1000 mm.

On the water retaining means 7, a spill-prevention sheet 10 is provided. As the loss prevention sheet 10, for example, a nonwoven fabric is used. The spill-prevention sheet 10 prevents the erosion of the artificial soil to be embanked thereafter and reduces the damage to the root-prevention sheet 6 by once receiving the root of the plant. The thickness of the spill-prevention sheet 10 is about 0.9 mm.

On the spill-prevention sheet 10, a rigid mesh sheet 11 is provided. The mesh sheet 11 is, for example, formed in a grid pattern with a synthetic resin or the like, and is laid on the flow-off prevention sheet 10 such that joints between the mesh sheets 11 overlap. Each mesh sheet 11 is, for example, a standard size of 1000 mm × 500 mm, a mesh size of 8 × 8, and a thickness of about 2.8 mm.

The artificial soil 12 is laid on the mesh sheet 11. In this embodiment, since planting grass 13 artificial soil 12, the thickness D ₁ of the artificial soil 12 that embankment is about 10
cm. As the artificial soil 12, for example, a granular artificial improved soil is used. This granular artificially modified soil is a white conversion soil containing no organic matter, and is light in weight and packed in a paper bag, so that it can be installed in any place. Because it is white granular, it is easy to clean at the time of operation. In addition, chemical fertilizers may be applied to plants without deteriorating soil. The weight of the artificial soil 12 is about 6 when the thickness is 10 cm.
It is 0 kg / m ² .

A lawn 13 is planted on the artificial soil 12. As the lawn 13, for example, a thickness of 25 mm and a size of 5
A roll turf of 00 mm x 1000 to 2000 mm is used. By using the roll-shaped turf, the workability of mound molding is improved, and scattering of the artificial soil 12 due to strong wind due to its own weight is prevented. Lawn 13 weighs about 25k
g / m ² .

When the artificial ground greening method of the present invention is constructed in accordance with the above procedure, the basic structure shown in FIG. 1 is completed. When the thickness of the artificial soil 12 is 10 cm, the basic structure is light in weight, about 85 kg / m ^2, and can be implemented at a low cost of 6,000 yen / m ² .

Next, the mesh sheet 11 will be described in more detail.

FIG. 2 shows a plan view (a) of the mesh sheet 11 and a cross-sectional view (b) thereof along the line AA.

As shown in FIG. 2, the mesh sheet 11
Is made of a synthetic resin or the like, and is formed in a grid pattern by a bar-shaped vertical member 20 and a bar-shaped horizontal member 21. The vertical member 20 and the horizontal member 21 define a substantially square space 22. Each intersection 23 between the vertical member 20 and the horizontal member 21 of the mesh sheet 11 is formed wider than the vertical member 20 and the horizontal member 21. On the front and back surfaces of these intersections 23, dome-shaped projections 24u and 24d which are rounded up are provided.
Are formed.

The mesh sheet 11 is laid on the outflow prevention sheet 10 so that the joints of the mesh sheets 11 overlap with each other, and the dome-shaped projections 24u and 24d of the adjacent mesh sheets 11 are engaged with each other. It is designed to prevent lateral displacement.

According to the artificial ground greening method of the present invention, when the lawn is removed for repair or the like after the above-described procedure is carried out, the grass 13 can be lifted upward while supporting the grass 13 from below by the rigid mesh sheet 11. Therefore, the grass 13 can be easily removed together with the mesh sheet 11. At this time, the artificial soil 12 falls from the space 22 of the mesh sheet 11 downward. This facilitates construction and renovation.

Further, the water retaining means 7 discharges excess water from the slit 8 to the outside of the frame while retaining necessary water in the frame surrounded by the sponge, so that water retention / drainage can be reliably performed. The surplus water finally flows to the drainage pit of the artificial ground 1, and is discharged from the drainage pit to the outside.

In the above description, the method of planting turf on the artificial ground for greening has been described. Hereinafter, the method of planting low and middle trees on the artificial ground for greening will be described with reference to FIGS.

Next, a second embodiment will be described.

FIG. 3 is a sectional view of the root of a tree to which the artificial ground greening method according to the second embodiment of the present invention is applied.

First, in the same procedure as the basic structure of FIG. 1, a root prevention sheet is laid on artificial ground, a water retention means is provided on the root protection sheet, a flow prevention sheet is provided on the water retention means, and a flow prevention sheet is provided. On top, a rigid mesh sheet 11 is provided. This is the same in other embodiments described below.

Next, the mesh sheet 1 at the position where the tree should be planted
1. A tree 30 is placed on the top of the table. Here, the root 3 of the tree 30
A tree fixing mesh sheet 34 having a hole 33 through which the trunk 32 passes through the mesh sheet and a cut through which the trunk 32 passes through the hole 33 is prepared so as to cover 1 from above. The root 31 of the tree 30 is covered with the mesh sheet 34 for fixing the tree,
When the mesh sheet 34 for fixing trees and the lower mesh sheet 11 are connected vertically around the trunk 32 using belts 35, 36, etc., the root 31 of the tree 30 is sandwiched between the upper and lower mesh sheets 34, 11. The tree 30 can be fixed.

At this time, the mesh sheet 34 around the hole 33 may be fixed to the trunk 32 with a belt 37 or the like, or may be fixed with a belt or the like so that the cut of the mesh sheet 34 does not spread. Also, a triangular anchor frame 38 formed by assembling three single tubes is laid on the mesh sheet 11 at the position where the tree is to be planted.
And then place the tree 3 on the mesh sheet 34 for fixing the tree.
The base 31 of 0 may be covered. In this case, anchor frame 3
8 and the upper and lower mesh sheets 34 and 11 are fixed with a belt or a string, so that the tree 30 is connected to the upper and lower mesh sheets 3 and 11.
It is possible to fix more securely with 4, 11.

Finally, when the artificial soil 12 is embanked to cover the portion where the tree 30 is fixed, and the lawn 13 is planted on the artificial soil 12, the state shown in FIG. 3 is obtained. The thickness D ₂ of the portion of the artificial soil 12 planted trees is about 20 cm.

The second embodiment is particularly effective when planting low and medium trees on an artificial ground for greening. The low and medium trees can be fixed only by the mesh sheets 34 and 11, and the portion fixing the low and medium trees is covered with the artificial soil 12 and cannot be seen from the outside, so that there is an advantage that the landscape is improved.

The third embodiment will be described.

FIG. 4 is a sectional view of the root of a tree to which the artificial ground greening method according to the third embodiment of the present invention is applied.

As shown in FIG. 4, first, a triangular anchor frame 40 formed by assembling a single pipe is laid on the mesh sheet 11 at a position where a tree is to be planted. At each corner of the anchor frame 40, a free clamp 41 is provided. The universal clamp 41 is provided with a column support 43 into which a tree column 42 is inserted. The anchor frame 40 and the mesh sheet 11 are connected by a belt, a string, or the like.
The tree 44 is arranged in the area 0. The tree support 42 is inserted into the support support 43, and the trunk 45 of the tree 44 is inserted into the tree support 42.
Is supported from three directions, the tree 44 can be fixed.

In the third embodiment, the mesh sheet 1
1 is used to support an anchor frame 40 that supports a tree support 42.

FIG. 5 is a plan view of the anchor frame 40 shown in FIG. As shown in FIG. 5, the anchor frame 40 is for supporting a tree support or the like, and is formed by assembling single tubes 50a to 50c of the same length into a triangle. Each corner of the anchor frame 40 has a free clamp 41
a to c are provided. The anchor frame 40 is provided on the mesh sheet 11 at a position where a tree is to be planted, and a tree 44 is disposed at the center thereof.

Further, as shown in FIG. 6, a rectangular anchor frame 60 may be used. This anchor frame 60
The two single tubes 61a and 61b having the same length connected by a straight joint 62a and the single tubes 61c and 61d having the same length connected by a straight joint 62b are arranged in parallel to form a single tube 61a.
And the left end of the single tube 61c are assembled with a single tube 63a,
The right end of 1b and the right end of the single tube 61d are combined into a single tube 63b to form a square. Each corner of the anchor frame 60 is also provided with free clamps 64a to 64d. The anchor frame 60 is provided on the mesh sheet 11 at a position where a tree is to be planted, and trees 65a, 65b,... Are arranged in the frame along the longitudinal direction of the frame.

Next, a fourth embodiment will be described.

FIG. 7 is a sectional view showing the root of a tree to which the artificial ground greening method according to the fourth embodiment of the present invention is applied.

As shown in FIG. 7, first, a reinforcing mesh sheet 70 is provided on the mesh sheet 11 at a position where a tree is to be planted. An anchor 72 for supporting a tree support 71 is provided integrally with the reinforcing mesh sheet 70. The anchor 72 is a flat anchor metal member 73 provided integrally with the vertical member and the horizontal member of the reinforcing mesh sheet 70.
A projecting plate 74 having a triangular shape protruding upward from the anchor hardware 73, and a movable column support 75 provided at the tip of the projecting plate 74 and into which the tree column 71 is inserted.
The trunk 76 is supported by the tree support 71 engaged and supported by the reinforcing mesh sheet 70, and the tree 77 is fixed.

FIG. 8 is a plan view of the reinforcing mesh sheet 70 before embankment of the artificial soil 12 shown in FIG.

As shown in FIG. 8, the reinforcing mesh sheets 70a to 70c are formed in a Y-shape on the mesh sheet 11 at the position where the tree is to be planted, centering on the position where the tree is to be planted, and the center portions are mutually overlapped. And a tree 77 is installed at the center thereof, and the tree 77 is supported by tree columns 71a to 71c engaged and supported by the reinforcing mesh sheets a to c.

Each of the reinforcing mesh sheets 70a to 70c is made of a synthetic resin or the like, like the mesh sheet 11, and is formed in a grid pattern by a bar-shaped vertical member 80 and a bar-shaped horizontal member 81. Round and dome-shaped projections are formed on the front and back surfaces of each intersection 82 of the vertical member 80 and the horizontal member 81 of each of the reinforcing mesh sheets 70a to 70c. Each of the reinforcing mesh sheets 70a to 70c has, for example, a size of 500 mm × 1.
It has a standard size of 200 mm, a mesh size of 18 × 18, and a thickness of about 5 mm.

In the fourth embodiment, the mesh sheet 1
Since the dome-shaped protrusions on the front surface side of the first mesh member engage with the dome-shaped protrusions on the back surface side of each of the reinforcing mesh sheets 70a to 70c, the reinforcing mesh sheets 70a to 70c do not laterally shift with respect to the mesh sheet 11. Furthermore, since the dome-shaped projections engage with each other in the overlapping portions of the reinforcing mesh sheets 70a to 70c, there is an effect that the tree support 71 supporting the trunk 76 does not laterally shift. Further, each of the reinforcing mesh sheets 70a to 70c can be easily removed upward, similarly to the mesh sheet 11.

As described above, the artificial ground greening method of the present invention is characterized in that a rigid mesh sheet is used. With this mesh sheet, not only can the lawn be easily removed for renovation or the like, but also the trees can be fixed and the anchors that support the tree pillars can be supported, thus facilitating construction and renovation.

Next, a fifth embodiment will be described with reference to FIGS.
0 will be described. The fifth embodiment is a method of planting trees on artificial ground for greening.

FIG. 9 is a plan view of a roof garden to which an artificial ground greening method according to a fifth embodiment of the present invention is applied.
FIG. 10 is a sectional view taken along the line BB.

As shown in FIGS. 9 and 10, the roof garden 90 is obtained by applying greening to the artificial ground 1 by applying the artificial ground greening method according to the present invention, and bricks crossing the roof garden 90 diagonally. On the boundary of the stacked wall 91, there are a lowland portion 93 composed of the lawn 13 and low and middle trees 92 and the like, and a tree planting basin 95 formed one step higher than the lowland portion 93 and in which a high tree 94 is planted. The artificial ground 1 is provided with a plurality of drainage pits 96 for discharging excess water to the outside.

The lowland 93 is provided with a semicircular lawn 13, a brick pavement 98 in which a brick plate 97 is spread around the lawn 13, a low and middle tree 92 planted around the brick pavement 98, and the like. Have been. The semi-circular lawn 13 is shown in FIG.
It is formed in the same procedure as the basic structure described in. For example, a stump 99 or the like may be arranged on the semicircular lawn 13. The brick pavement 98 fills the artificial soil 12,
It is formed by solidifying adjacent brick plates with mortar or the like. The low and middle trees 92 are, for example, as described in FIG.
The root of the low and middle tree 92 is fixed between upper and lower mesh sheets.

The tree planting basin 95 formed one step higher than the lowland part 93 is formed by first laying an embankment member 100 made of polystyrene foam on a part of the laid mesh sheet 11. An inverted truncated cone-shaped tree-planting hole 1 vertically penetrated into a position where a tree 94 of the embankment member 100 is to be planted.
01 is formed. After planting a tree 94 in the tree planting hole 101, the artificial soil 12 is covered so as to cover the root 102 of the tree 94.
Embankment. A lawn 103 is planted on the embankment member 100. The height difference H between the lowland part 93 and the tree-planting basin 95 is, for example, about 600 mm.

The lawn 103 is placed on the coconut mat 10 so as not to be shifted sideways on the embankment member 100 made of styrofoam.
The one with 4 is used. When planting the low and medium trees 92 in the tree planting basin 95, when planting the tree 101 in the tree planting hole 101 where the high trees 94 are planted, the low and medium trees 92 are arranged near the upper part of the root 105 of the high tree 94 to remove the artificial soil 12. Embankment.

The mesh sheet 11 thus laid is
An embankment member 100 made of lightweight styrofoam is laid in the upper part to form a tree planting basin 95, so that a tree 94 is planted on the artificial ground 1 without imposing a load on the artificial ground 1. Can be greened.

Since the tree-planting basin 95 is formed one step higher than the lowland part 93, a pond can be formed.
In this case, first, the embankment member 10 made of styrofoam
A water tank cut-out hole 106 for forming the pond P is formed facing the step portion of No. 0. The waterproof sheet 107 is provided on the embankment member 110 in which the water tank cutout hole 116 is formed. Then, the front surface of the water tank cut-out hole 106 facing the step is covered with a transparent acrylic plate 108, and the waterproof sheet 107 and the acrylic plate 108 are bonded. Pond P can be formed in tree-planting basin 105 by pouring water into cut-out hole 106 for aquarium so that the top surface of embankment member 100 matches water surface WL.

In this pond P, the front of the cut-out hole 106 for the water tank facing the step is covered with a transparent acrylic plate 108, so that the figure of the fish f swimming in the water can be seen and the landscape of the roof garden 90 is improved. There is an advantage of doing so. In and around the pond P, F
It is more preferable to arrange the RP pseudo rock 109, driftwood 110, and the like.

[0067]

As is apparent from the above description,
According to the present invention, the following excellent effects are exhibited.

(1) Construction and renovation are easy.

(2) Water retention and drainage can be reliably performed.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a preferred embodiment of the present invention.

FIG. 2 is a plan view (a) of the mesh sheet shown in FIG. 1,
It is the sectional view on the AA line (b).

FIG. 3 is a sectional view showing a second embodiment of the present invention.

FIG. 4 is a sectional view showing a third embodiment of the present invention.

FIG. 5 is a plan view showing an example of an anchor frame.

FIG. 6 is a plan view showing an example of an anchor frame.

FIG. 7 is a sectional view showing a fourth embodiment of the present invention.

FIG. 8 is a plan view of the reinforcing mesh sheet shown in FIG.

FIG. 9 is a plan view showing a fifth embodiment of the present invention.

10 is a cross-sectional view of the roof garden shown in FIG. 9 taken along line BB.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Artificial ground 6 Root prevention sheet 7 Water retention means 10 Outflow prevention sheet 12 Artificial soil 13 Lawn

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A01G 17/14 A01G 17/14 E04D 13/00 E04D 13/00 Z

Claims (8)

[Claims] 1. A construction method for planting grass and trees on an artificial ground such as a rooftop for greening, wherein a root prevention sheet is laid on the artificial ground, and a water retention means is provided on the root prevention sheet. An artificial ground characterized by providing a spill prevention sheet on the top, providing a rigid mesh sheet on the spill prevention sheet, embedding artificial soil on the mesh sheet, and planting a lawn on the artificial soil for greening. Greening method. 2. The water retention means is formed by arranging rod-shaped sponges in a frame shape in a vertical and horizontal direction, and holding water in a frame surrounded by the sponge, and a slit for draining a predetermined amount or more of water in the frame. The artificial ground greening method according to claim 1, which is formed. 3. The mesh sheet is formed in a grid pattern with a synthetic resin or the like, and is formed with projections on the front and back surfaces of each intersection thereof. The artificial ground greening method according to claim 1 or 2, wherein the joints of the sheets are laid so as to overlap with each other, and protrusions of adjacent mesh sheets are engaged with each other so as not to be shifted laterally. 4. A tree fixing method wherein a tree is placed on a mesh sheet at a position where a tree is to be planted, and a hole is formed through the mesh sheet so as to cover the root of the tree from above, and a cut is formed through the hole. While forming a mesh sheet,
The root of the tree to be planted is covered with the mesh sheet for fixing trees, and the mesh sheet for fixing trees and the lower mesh sheet are connected up and down around the trunk, so that the root of the tree is positioned between the upper and lower mesh sheets. The artificial ground greening method according to any one of claims 1 to 3, wherein the tree is fixed by sandwiching the trees. 5. An anchor frame formed in a triangular or quadrangular shape is laid on a mesh sheet at a position where a tree is to be planted, and the anchor frame and the mesh sheet are connected to each other. The trunk is supported by the supported tree support, and the tree is fixed.
The artificial ground greening method described in any of the above. 6. On a mesh sheet at a position where a tree is to be planted,
Place the reinforcing mesh sheet in Y around the position where the tree should be planted.
A tree is disposed in a shape of a letter so that the center portions overlap each other, and a tree is installed at the center portion, and the tree is supported by a tree support engaged and supported by each reinforcing mesh sheet.
The artificial ground greening method described in any of the above. 7. A part on the laid mesh sheet,
An embankment made of Styrofoam is laid to form a tree-planting basin that is one step higher, and planting holes that penetrate up and down are formed at locations where the embankment should be planted. The lawn is planted on the member.
The artificial ground greening method according to any one of to 6 above. 8. A cut-out hole for a water tank for forming a pond is formed facing the step of the embankment member made of Styrofoam, and the front surface of the cut hole for the water tank facing the step is covered with a transparent acrylic plate. The artificial ground greening method according to claim 7.