JPH11131480A - Slope greening method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a slope greening ensuring the growing property of plant and close to natural state, and also realize a greened scenery requiring relatively little labor. SOLUTION: When a nursery stock 101 is planted in a slop 100, the work is performed while spraying a foundation material for the nursery stock after a net frame is fixed to the nursery stock planting position of the slope 100. As the foundation material, a nursery stock growing foundation material 120 to be sprayed in a thickness of covering the root part 102 of the nursery stock 101 and a thick layer foundation material 130 to be sprayed around the nursery stock growing foundation material 120 are used, and the components of the nursery stock growing foundation material 120 and the thick layer foundation material 130 are arranged to be different.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope revegetation method for spraying a base material for seedlings onto a slope to reliably realize a slope revegetation close to nature.

[0002]

2. Description of the Related Art Conventionally, when greening a slope, a method of spraying a base material mixed with water, soil, fertilizer, seeds, and the like, and a method of digging a sloping ground in a concave shape and planting a seedling there. Various proposals have been made on the basis of the above.

In the above example, for example, as shown in FIG.
An anchor pin 4 is attached to a pot seedling 5 whose root is wrapped with a net n.
Fixed on the inclined surface (slope) 1 by spraying a base material (not shown) around it (Japanese Patent Publication No. 5-4).
No. 87).

As another example, as shown in FIG. 10, a wire mesh 3 laid on a surface 2 of a slope 1 is fixed to an anchor pin 4.
The wire mesh 3 is partially cut and bent upward, and the root portion 6 of the potted seedling 5 is drawn from the inside or clamped from above the wire mesh 3 and the base material is attached to the periphery thereof. There is also a method of fixing by spraying 7 (JP-A-6-173270).

[0005] Further, as shown in Fig. 11, the root pot portion 11 of the seedling 12 is grown thinly and the root system 3 is densely grown, and the above-ground portion is cut and removed from the middle.
(Japanese Unexamined Patent Publication No. Hei 7-189261) has also been proposed in which the root pot portion 11 is covered with a vegetation substrate 30 until the root pot portion 11 is hidden.

[0006]

By the way, when such a base material is sprayed on an inclined surface, a plant that does not match the soil environment of the inclined surface does not grow or different seeds are destroyed. Vegetation may be made of only a single plant. In this situation, if the fertilizer on the sloping soil is cut off, vegetation of only a single species will lead to a simultaneous decline of plants from the entire sloping surface. Hard to say.

[0007] In addition to using the base material as in the above example, in the method of planting potted seedlings, the nutrients in the soil around the trees during the period until the trees are rooted on the slope and the vegetation is stabilized. When absorbing nutrients, it may absorb nutrients from surrounding plants and seeds in the thick base. In such a case, the ground surface of the soil around the trees is exposed or peeled off, so there is a problem in certainty in achieving a green landscape.

Further, in the method of planting and planting a pot seedling with a wire mesh or an anchor pin, the nutrients of the tree are secured in the soil in the pot seedling, so that a thick layer base mixed with seeds around the pot seedling. Even if you spray wood, or if there are vegetation around, there is no need to worry about destroying. However, when installing a wire mesh vegetation shelf on an inclined surface, the work of transporting the material to a predetermined point on the inclined surface and assembling the wire mesh there to form the shelf itself becomes relatively troublesome. I have a problem.

In the method using such a wire mesh,
When the base material is sprayed, the root of the potted seedling may not be completely covered, and there is a problem that the growth of the seedling is not reliable. Further, in the method using the anchor pin, there are problems that the root system of the potted seedling is damaged by the anchor pin and that roots do not stably take root on the ground.

[0010] For these reasons, it has been desired to develop a method that has certainty in the growth of plants, realizes greening of a slope close to nature, and realizes a greening landscape that is relatively trouble-free.

The present invention has been made in view of the above points, and a seedling growing base that is sprayed so as to cover the roots of the seedlings while securing a necessary thickness of the spraying base material using a net frame. By adopting the concept of using two types of base materials, wood and a thick base material to be sprayed around it, the growing area of the seedlings and the growing area of the surrounding plants are positively divided, and It is an object of the present invention to provide a technology capable of forming a sound greening environment, improving workability, improving economic efficiency, improving weather resistance, and the like.

[0012]

In order to solve the above-mentioned problems, according to the present invention, when planting a seedling on a slope, a net frame is fixed to a seedling planting position on the slope, and the seedling for the seedling is provided. This is a slope revegetation method in which the base material is sprayed while using a seedling growth base material sprayed to a thickness covering the root of the seedling and a thick base material sprayed around the seedling growth base material. A method was adopted in which the components of the seedling growth base material and the thick layer base material were made different. here,
As a foundation work for spraying the base material on the slope, it is preferable to previously lay a net on the entire slope. Further, it is desirable that the spraying thickness of the seedling growth base material be thicker than the thickness of the thick base material. It is very preferable that the seedling growth base material has a composition containing components effective for growing seedlings, such as sand, soil, compost, and slow-release fertilizer. It is preferable that the thick base material is a composition mainly composed of an organic growth base material and containing at least one seed of a plant or the like in a range that does not adversely affect the growth of the seedling. On the other hand, the net frame has a net having almost the same height as the thickness of the seedling growth base material, and the net itself is curved in a semicircular shape as a whole, and at least both ends of the net are sloped. It can also be configured to be supported by anchor pins fixed to the ground. In this case, the net and the anchor pin may be integrally formed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to FIGS. FIG.
6 to 6 show a slope greening method according to Embodiment 1 of the present invention. FIG. 1 is a plan view showing the positional relationship of planting a seedling on a slope, and FIG. FIG. 3 is a sectional view showing a state in which the net frame is fixed, FIG. 4 is a plan view of the net frame, FIG. 5 is a front view of the net frame, and FIG. 6 is a perspective view of the net frame.

FIG. 1 shows a slope greening method according to this embodiment.
As shown in FIG. 3, when planting a seedling 101 on the slope 100, the net frame 1 is placed at the seedling planting position on the slope 100.
After fixing 10, construction is performed while spraying a base material for the seedlings 101. In that case, the seedling 101
Seedling growth base material 1 sprayed to cover the root 102
20 and a thick base material 130 sprayed around the seedling growth base material 120, and the seedling growth base material 12
The concept of making the components of 0 and the thick layer base material 130 different is adopted.

Next, these details will be described. (1) First, as a foundation work for spraying a base material onto the slope 100, a wire mesh 103 is laid on the entire slope.

(2) Next, a place where the potted seedlings are vegetated on the slope 100 is determined. In this case, as shown in FIG. 1, for example, after the pot seedlings 101 have grown, they are spaced apart so that adjacent areas do not affect each other when absorbing nutrients in the ground.

(3) An operation of installing a net frame 110 including a net 111 and a plurality of anchor pins 112 shown in FIG. This net frame 1
Regarding 10, after the installation, the seedling growth base material 120 is sprayed on the pot seedling installation area,
As shown in FIG. 4, the area is curved and installed so as to surround a half-tail side of the area in a semicircular shape.

As the net 111, for example, a plastic material such as polyethylene or a metal material can be used. In any case, the net 111 has a certain elasticity such that it can maintain a semicircular shape like plastic. It is preferable to use a certain material.

When installing the net frame 110, first, anchor pins 112 and 11 are attached to the slope 100 at positions corresponding to both ends of the net 111 curved in a semicircular arc shape.
2 is driven vertically, and the anchor pin 112 is also driven into the lowermost end of the installation area (a position corresponding to the center of the semicircular arc). At this time, instead of completely driving the anchor pin 112, the head portion is left by an amount corresponding to the height of the net 111.

Then, the net 111 is maintained so as to be hung from the surplus portion, and the net 111 is fixed to the anchor pin 112 by tying it with a wire or the like, thereby forming a net frame 110 having a semicircular arc shape. Of course, as the net frame 110, one in which the net 111 and the anchor pin are integrally formed in advance may be used.

The height of the net frame 110 depends on the sprayed thickness of the seedling growth base material 120, and is set to such an extent that the necessary and sufficient thickness can be maintained when the seedling growth base material 120 is sprayed. As a necessary and sufficient thickness,
This is a degree that prevents the root portion 102 of the seedling 101 from drying and improves the root survival, for example, a degree that the root part 102 is covered with the seedling growth base material 120. (4) Next, an operation of fixing the seedlings 101 to the slope 100 is performed. This work is performed by spraying the seedling growth base material 20. At this time, the nylon seedling growth base material 120 is sprayed on the portion above the root of the pot seedling (parts such as branches and leaves) so that the sprayed seedling growth base material 120 is not applied. It is also very preferable to cover with a bag or the like.

Then, in the operation of actually spraying the seedling growth base material 120 and fixing it to the slope 100, the seedling 101 is placed at a predetermined center position, and the seedling growth 102 is covered to such an extent that the root 102 of the seedling is completely covered. The base material 120 is sprayed and completely fixed. Since the seedling 101 itself is not so large in a normal case, the seedling growing base material 120 may be sprayed while being maintained by a hand other than the spraying worker.

(5) Next, the thick base material 130 is sprayed on a slope (ground) other than the seedling vegetation area. In this case, the thickness does not need to be as large as that of the seedling growth base material, and may be as thin as necessary and sufficient according to the seeds of the mixed plant and plant. Spray extra over the border with the seedling vegetation area to cover it gently.

Incidentally, the composition (per m 3) of the seedling growth base material 120 was as shown in Table 1.

[0025]

[Table 1]

The composition of the thick base material 130 (per m 3) was as shown in Table 2.

[0027]

[Table 2]

The reason why such a component is blended is based on the following reasons. That is, in the case of the seedling growth base material 120, a component capable of achieving healthy and effective growth of the seedling 101,
For example, in addition to sand and Kanuma soil, bark compost, slow-release fertilizer, and the like are added.

On the other hand, in the case of the thick base material 130, the organic growth base material is mainly used, and a small amount of seeds such as plants and plants are mixed in addition to the slow-release fertilizer. In each of the base materials, a bonding material necessary for spraying and fixing is blended.
As the seeds to be mixed into the thick base material 130, seeds of plants or the like in a range that does not adversely affect the growth of the seedlings 101 are preferable, and more preferably, a plurality of types of seeds that do not exterminate each other are mixed. Is preferred.

FIG. 7 shows the net frame 1 shown in the previous embodiment.
FIG. 8 is a plan view showing another embodiment 10 of the present invention, and FIG. 8 is a cross-sectional view showing a slope greening method using the net frame 110.

As can be understood from these figures, in the present embodiment, the net 111 is curved into an almost elliptical shape,
At two points at both ends, the anchor pin 112 is
And fixed to the ground G. In this case, in addition to the above-described effects, the number of the anchor pins 112 can be reduced, and the workability and economy can be further improved.

[0032]

Since the present invention adopts the above-described concept, the following various effects can be obtained. (1) By clearly distinguishing the area of the seedling growing base material from the area of the thick base material surrounding the seedling, the seedlings can be surely grown until they have settled on the slope, and in this way the periphery of the tree By mixing and spraying seeds of vigorous plants and plants with a viable plant on the base material, a greening environment can be formed in a short time, and a forest landscape closer to the natural environment can be realized over time. . (2) By distinguishing the composition of the base material into a composition suitable for both areas, the planted trees and the vegetation mixed in the thick-layer base material are not destroyed, and even after growth. The greening environment can be maintained for a long time. (3) In order to realize this method, there is no need to raise special potted seedlings and manufacture special members to maintain the seedlings on the slopes, so that they can be obtained close to ordinary seedlings. Since the members can be diverted, on-site construction can be performed relatively easily. (4) Due to the elasticity of the net itself, there is no need to worry about the seedling growing base material being sprayed thickly, causing the seedlings to fall off the slope due to the load of the seedlings. There is no worry about collapse because the net frame supports. When the seedlings grow, the roots are completely stuck to the ground and become more stable. (5) As an effect of spraying the seedling growth base material thickly, nutrients can be secured so that the seedlings are not absorbed by the surrounding plants until the seedlings adhere to the ground. There is little danger that the seedling growth base material will fall off and the roots will protrude to the surface and die. Further, since the anchor does not need to be driven into the pot seedling itself, there is no fear of damaging the seedling. FIG. 2, FIG. 3, FIG.
FIG. 5 is a perspective view of the net frame in FIG.

[Brief description of the drawings]

FIG. 1 is a plan view showing a positional relationship between seedlings according to a slope greening method according to the present invention.

FIG. 2 is a cross-sectional view showing a state where a seedling according to a slope greening method of the present invention is planted.

FIG. 3 is a cross-sectional view of a state where a net frame according to the slope greening method of the present invention is fixed.

FIG. 4 is a plan view of a net frame according to the slope greening method of the present invention.

FIG. 5 is a front view of a net frame according to the slope greening method of the present invention.

FIG. 6 is a perspective view of a net frame according to the slope greening method of the present invention.

FIG. 7 is a front view showing another embodiment of the net frame according to the slope greening method of the present invention.

FIG. 8 is a cross-sectional view showing a slope greening method using a net frame according to another embodiment of the present invention.

FIG. 9 is a partial cross-sectional view showing a conventional slope greening method.

FIG. 10 is a partial cross-sectional view showing a conventional slope greening method.

FIG. 11 is a partial cross-sectional view showing a conventional slope greening method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Slope 2 Surface 3 Wire net 4 Anchor pin 5 Pot seedling 6 Root 7 Base material 10 Pot seedling 11 Root pot 12 Sapling 13 Root system 20 Slope 30 Vegetation base material G Ground 100 Slope 101 Pot seedling (sapling) 102 Root 110 Net frame 111 Net 112 Anchor pin 120 Sapling growth base material (base material) 130 Thick base material (base material)

Claims (7)

[Claims] 1. A slope greening method in which a seedling is planted on a slope, a net frame is fixed to a seedling planting position on the slope, and a base material for the seedling is sprayed while being constructed. The seedling growth base material sprayed to the thickness covering the roots of the seedlings and the thick base material sprayed around the seedling growth base material are used as the base material, and the components of the seedling growth base material and the thick base material are separated from each other. The slope revegetation method characterized by keeping it different. 2. The slope slope greening method according to claim 1, wherein a net is laid in advance on the entire slope as a foundation work for spraying a base material onto the slope. 3. The spray thickness of the seedling growth base material is:
3. The slope greening method according to claim 1, wherein the thickness is larger than a thickness of the thick base material. 4. 4. The seedling growth base material is sand, soil, compost,
The slope revegetation method according to any one of claims 1 to 3, characterized in that the formulation comprises a component effective for growing seedlings such as a slow-release fertilizer. 5. The method according to claim 1, wherein the thick-layer base material is mainly composed of an organic growth base material, and includes at least seeds of plants and the like in a range that does not adversely affect the growth of the seedlings. The slope greening method according to any of the above. 6. The net frame has a net having substantially the same height as the thickness of the seedling growth base material, and the net itself is installed so as to be curved in a semicircular shape as a whole. 2. The two ends are supported by anchor pins fixed to the slope ground.
The slope greening method according to any one of Items 1 to 3, above. 7. The slope greening method according to claim 6, wherein the net and the anchor pin are integrally formed.