JPH1181322A - Vegetation mat having bag for tree seed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the amount of planting seed and prevent roots from being tighten after trees have grown by superimposing a biodegradable net to one surface of a palm net, attaching vegetation bags filled with seeds of trees and sewing the nets and the bags in one united body. SOLUTION: A mat M is constituted by sewing a palm net 1 woven by palm fibers, a net 2 comprising biodegradation fibrous material and vegetation bags 3 containing vegetation materials including seeds of trees together to one united body with sewing thread 5. The palm net 1 has the size of raw material of 1 to 10 mm with 5 to 10 pieces per 10×10 cm. Raw materials for the net 2 comprise pieces of rough hemp cloth, biodegradable resin or the like. Sewing thread 5 is biodegradable resin thread, hemp thread or the like but anti-corrosive polyester thread or the like may be used. Law material for vegetation bag 3 is Bonric(R) paper, craft pulp paper or the like and each bag is filled with vermiculite, fertilizer and seeds of made trees or the like. Thereby, any desired trees can be grown soundly at desired location.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetation mat with a tree seed bag for greening a slope into which trees are introduced.

[0002]

2. Description of the Related Art Conventionally, when performing tree planting construction using trees, a durable net is stretched on the slope and tree seeds are mixed with fertilizer, water retention material, soil improvement material, etc. from above. A spraying method of spraying a thick layer base material, a construction method of laying a vegetation mat in which a vegetation base material containing tree seeds is set on a bag or a piece of mat-shaped paper cloth, etc., are employed.

In such a construction method, tree seeds can be stably fixed on a slope together with a fertilizer, a water retention material, a soil improvement material and the like by a net or a mat, and the slope is protected by a net or a mat. Therefore, it is easy to achieve early stable greening.

[0004]

However, in the above-mentioned conventional construction methods, several types of tree seeds are sown at random, so that after germination, pressure is exerted on each other by competition between the trees. In some cases, it has been difficult to reliably grow a desired tree seed in a predetermined place.

When planting seedlings or planted trees,
To cover the slopes with vegetation holes, cover the soil, and to prevent drying and weed growth, cover the surroundings with such materials as rice pine, plywood, como, cardboard, and linen. There was a drawback that it was necessary to lay it, which required a great deal of work.

The present invention has been made in view of such circumstances,
An object of the present invention is to provide a vegetation mat capable of growing a target tree at a desired position on a slope.

[0007]

According to the present invention, means for solving the above-mentioned problems are constituted as follows. That is, according to the first aspect of the present invention, a biodegradable net or cloth piece is superimposed on one side of the coarse coconut net, and the tree seeds are mainly stored between the palm net and the biodegradable net or cloth piece. Vegetation bags are sandwiched at appropriate intervals,
It is characterized in that these are integrally sewn.

[0008] In the second aspect of the present invention, the coconut net according to the first aspect of the present invention is formed by weaving a twisted string of coconut fibers having a diameter of 1 to 10 mm so as to have 5 to 15 strands per 10 x 10 cm. It is characterized by becoming.

According to a third aspect of the present invention, in the first or second aspect of the invention, a biodegradable synthetic resin fiber thread is used as the suture.

[0010] By setting the tree seeds in the vegetation bag, the seeding amount can be reduced, and the target tree can be surely grown healthy at a predetermined location.

[0011] The palm net, which is the base of the vegetation bag, is a natural material, has moderate durability, is excellent in heat retention and has a high evaporation suppressing power. Movement and runoff can be effectively prevented, and generally corroded two to five years after construction,
It does not remain after and does not cause pollution problems.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vegetation mat with a tree seed bag (hereinafter referred to as a mat) of the present invention will be described in detail below. FIG. 1 is a schematic cross-sectional view of a mat M, and FIG. 2 is an exploded perspective view. In these figures, reference numeral 1 denotes a coarse palm net knitted with coconut fibers, and 2 denotes a net made of a biodegradable fiber material. And 3) a vegetation bag sandwiched between the palm mat 1 and the net 2 and containing a vegetation base material 4 mainly containing tree seeds.
To form a mat M.

The above-mentioned coconut net 1 has a material (string shape) having a thickness of 1 to 10 mm, for example, 5 mm, and a size of 10 × 10 cm.
The number of contacts is 5 to 10, for example, seven. The coconut net 1 is excellent in heat retention and has a high function of suppressing evaporation, and has a high function of preventing movement and runoff of the surface soil on the surface when it is attached to a slope. Generally, it corrodes 2 to 5 years after construction and leaves no residue.

When the thickness of the coconut net material is 1 mm or less, the strength is reduced, and there is a possibility that the coconut net material is broken by running water. In addition, the closing property of the net is reduced, and the net covering effect is reduced. When the thickness is 10 mm or more, the obstructiveness is too large, which hinders the emergence from the plant net, and the knitting property is deteriorated. 5 to 1 per 10 × 10 cm
The use of five is also intended to keep the obstruction of the net at an appropriate level and to take into account the covering effect and the emergence of the plant.

As materials that can be used for the biodegradable net (or cloth) 2, hemp coarse cloth (hessian cloth),
There are biodegradable resin nets, rayon nonwoven fabrics, kraft pulp and the like. Examples of biodegradable synthetic resins include natural polymer synthetic resins such as a complex of chitosan and cellulose, and microbial fermented aliphatic polyesters (for example, As synthetic resins for fermentation production, such as Shimadzu's trade name, Lactron) and biocellulose, and as synthetic resins for chemical synthesis, aliphatic polyester e-caprolactone and condensation of dicarboxylic acid and diglycol. An e-caprolactone-based aliphatic polyester (for example, Showa Kobunshi trade name, Bionole) or the like can be used.

As the suture 5, a biodegradable resin fiber thread, hemp thread, cotton thread, or the like can be used as a component of a corrosive product. In the case where the material has a corrosion resistance function and it is necessary to maintain the slope protection effect), a thread such as polyester or vinylon having corrosion resistance can be used. As these yarns, twisted yarns are mainly used, and yarns having a thickness of 0.5 to 3 mm are used. In the case of a plastic yarn such as polyester, a monofilament yarn can be used. In this case, 0.3 mm is used.
It is possible to use a high-strength plastic thread even for a thread having a moderate thickness. The stitching may be performed in the longitudinal direction at intervals of 3 to 50 cm (see FIG. 3A).

As another suturing method (see FIG. 3B), it is also possible to use a stapler to integrate the respective materials at the above-mentioned intervals. In this case, suturing can be performed with relatively simple equipment. Possible and cost-effective. FIG.
In (B), reference numeral 9 denotes a stapler needle.

The vegetation bag 3 is made of a water-soluble, water-decomposable, or corrosive cloth piece, and specific examples thereof include bonric paper, nonwoven fabric, and kraft pulp paper. Vermiculite, peat moss, isolite, granular tankal, saturide (water-repellent inhibitor), granular bentonite, and fertilizers include Green Map (trade name, manufactured by Nippon Godo Fertilizer Co., Ltd.), and coating fertilizer (high Control), molten phosphorus fertilizer, etc.
Acorns (e.g., oak, alakashi, shirakashi) and herbaceous seeds (foreign grass species, native wild plants) are mixed and filled. The size of the bag is 10 × 10cm, thickness 3-5c
m is preferable. Further, as a material of the vegetation bag 3, a nonwoven fabric of chitin and chitosan (a material having an antibacterial component) may be used, or a strip or powder thereof may be used as a filler of the vegetation bag 3. In addition, poor germination and unevenness can be resolved, and uniform germination of tree seeds can be promoted.

When the mat M constructed as described above is laid on the slope (see FIG. 4), the palm net 1 has an appropriate durability and has a high effect of preventing the surface soil of the slope from collapsing. It can be applied to sloping land. In addition, since the palm net 1 has a high evaporation preventing effect, it is possible to sufficiently secure moisture for germination and growth of plants even in a dry area or when there is little rainfall. Furthermore, the palm net 1 has an excellent heat retaining effect, can prevent frost heaving, and has a high germination / growth promotion effect, so that the tree can be stably greened at an early stage.

In particular, since the tree seeds are stored in the vegetation bag 3, the seeding amount is small, and the target tree can be reliably grown in a predetermined place without being affected by pressure. Further, the vegetation bag 3 is a natural material and does not cause a pollution problem because it is corroded and disappeared at an appropriate time when trees have grown. In addition, since coconut sheets and jute are used in layers, they have an excellent erosion prevention effect against rainwater and surface running water.
Good protection is obtained until the trees grow. In addition,
If necessary, the mat M may be fixed to the slope with a peg or an anchor.

FIG. 5 shows a different embodiment, in which
A sheet 6 made of a thin piece of paper or a nonwoven fabric is sandwiched between the coconut net 1 and the net 2 made of hessian cloth (coarse linen), and the vegetation bag 3 is sandwiched between the sheet 6 and the net 2. To With this configuration, the work of inserting the vegetation bag 3 becomes easy, and the evaporation of the water on the slope can be suppressed by the sheet 6 and the sheet 6 is dispersed by the water. Water retention can be ensured.

FIG. 6 shows another embodiment, in which
Sheet 6 made of non-woven fabric etc. on one side of coarse coconut net 1
And a net 2 consisting of Hessian cross
A biodegradable synthetic resin thread (fermented aliphatic polyester-trade name: Lactron-manufactured by Shimadzu Corporation) is sewn in the longitudinal direction at intervals of 5 cm, and the net 2 between the sutures and the suture is not sewn in the width direction. A large number of continuous cuts 7 are formed at appropriate intervals in the longitudinal direction to form accommodating portions 8 between the sheet 6 and the net 2, and a vegetation bag containing tree seeds in each accommodating portion 8. Insert 3 beforehand or at the site. Note that the sheet 6 may be omitted.

As described above, in each embodiment, the slope is protected mainly by the palm net 1 at the initial stage of construction, and the mat M is corroded and disappears when the tree is sufficiently grown. There is no so-called neck tightening phenomenon and no pollution problem occurs.

[0024]

As described above, according to the vegetation mat with a tree seed bag of the present invention, a biodegradable net or cloth is superimposed on one side of a coarse coconut net, and the coconut net and the biodegradable net are superposed. Alternatively, a vegetation bag mainly containing tree seeds is sandwiched between cloth pieces at appropriate intervals, and these are integrally sewn, so that the seeding amount of the tree seeds is small and is subjected to pressure. Therefore, the target tree can be grown healthy at a desired position.

Also, since the constituent material of the vegetation mat is a natural material, it is corroded at an appropriate time, and is naturally friendly. Since the palm sheet and the biodegradable net or cloth piece are overlapped, the erosion prevention effect against rainwater and surface running water is excellent, and a high protection effect can be obtained until tree growth.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a vegetation mat with a tree seed bag according to the present invention. .

FIG. 2 is an exploded perspective view of the same.

3A is an explanatory diagram of the suturing operation, and FIG. 3B is an explanatory diagram of a suturing operation by a stapler.

FIG. 4 is a perspective view showing a construction state on the slope.

FIG. 5 is an exploded perspective view showing the different embodiment.

FIG. 6 is a perspective view showing another embodiment.

[Explanation of symbols]

1 ... palm net, 2 ... biodegradable net (or cloth piece),
3: Vegetable bag, 5: suture.

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Kazumasa Shibata 590-1 Takao, Tsuyama City, Okayama Pref.

Claims (3)

[Claims] 1. A biodegradable net or cloth piece is superimposed on one side of a coarse palm net, and a vegetation bag mainly containing tree seeds is appropriately placed between the palm net and the biodegradable net or cloth piece. A vegetation mat with a tree seed bag, wherein the vegetation mat is sandwiched at intervals and stitched together. 2. The tree seed bag according to claim 1, wherein the coconut net is formed by weaving stranded strings of coconut fibers having a diameter of 1 to 10 mm so as to have 5 to 15 strands per 10 × 10 cm. With vegetation net. 3. The vegetation mat with a tree seed bag according to claim 1, wherein a biodegradable synthetic resin fiber thread is used as the suture.