JPH0626055A - Tree-planting base material - Google Patents

Abstract

PURPOSE:To prevent the pollution of a residual net and to ensure the growth of plants by forming a net in which a planting base material such as grass or flower plants is stored being sectioned, from corrosive fibers so that the net is decomposed and corroded after a period of about one-half to one year. CONSTITUTION:A net-like body 2 is formed of mixed fibers which is a blend of corrosive fibers and synthetic fibers or blended Rayon obtained by adding polymer emulsion or water-soluble polymer into a viscose solution. Further, thin cotton 10 to which flower plants, fertilizer, a water retentive material and the like are glued, is applied to the net-like body 2. Further, a fertilizer bag 14, and a plant bag 15 in which grass seeds or the like are stored are held in a storage part 9. Further, the flower plants or the like, and the grass may be separately stored being alternately arranged in the bag 15. Further, the net-like body 2 is fixed to a slope surface with anchors, and a sufficient strength is ensured during a period of about one-half to one year so as to protect the slope surface. Thereafter, the net-like body 2 is decomposed and corroded, and then homogenized with the soil. Thereby it is possible to prevent the net-like body from permanently remaining and to protect the slope surface on which the plants is grown, further, it is possible to prevent the grass from oppressing flowers.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetation substrate for greening (hereinafter, simply referred to as a vegetation substrate) used in, for example, a slope greening method.

[0002]

2. Description of the Related Art One of the slope greening methods is a method in which seeds of exotic plants such as grass and seeds of native plants such as flower plants, wildflowers and trees are mixed on the slope. However, with this method, the growth power of the grass is strong, the flower plants, wild grass, and trees are pressed by the grass, and the flower plants, wild grass, and trees that have been sown with great effort cannot grow, and only the grass is greened,
The slope, which is the final purpose, cannot be restored to the mountain.

Therefore, for example, as disclosed in Japanese Utility Model Publication No. 60-114607, while grass seeds are stored together with a fertilizer in a bag made of a soluble film, flower plant seeds, wild grass seeds,
A turf-like vegetation substrate has been proposed in which tree seeds are provided in a turf grass part composed of a net, etc., and grass and flower plants, wild plants, and trees are separated to prevent pressure on the vegetation plants, wild plants, and trees by the grass. There is.

[0004]

However, in the stretched grass-like vegetation substrate described in the above publication, since the bag containing the grass seed and the fertilizer is made of a soluble film, the grass in the bag is sacked when there is rainfall. With the flow of seeds and fertilizer, especially grass seeds stagnated in the turf and grew there, and despite the fact that the grass was separated from the flower plant, wild grass, and trees, , I sometimes overwhelmed wild grass and trees.

On the other hand, as a modification of the technique described in the above publication, it is possible to store grass seeds and fertilizer in a bag made of non-woven fabric. In this case, the bag is fragile and fragile. There is a problem in that the grass seeds cannot germinate if the bag is too strong.

There are also the following problems. That is,
The net, which is a base material in the stretched grass section, is conventionally made of a chemically synthesized plastic such as polyethylene (PE) or polypropylene (PP), and this plastic is semipermanently modified under normal conditions. Therefore, unlike other plant-based or animal-based materials, it will not be exposed to weather and weather to weather or corrode to homogenize with soil or soil over many years. Therefore, in recent years, such characteristics have been regarded as disasters and have become a global environmental problem as plastic pollution.

Therefore, under such a circumstance, using a net made of plastic in a slope greening method or the like contributes to environmental greening on the one hand, but also promotes plastic pollution on the other hand. It will be.

In order to avoid the problems caused by the above-mentioned characteristics of the plastic material, a net made of a vegetable material such as jute has been used in the past. Further, viscose rayon is made of regenerated cellulose and is a so-called corrosive material that is completely corroded even after a long period of time, and can be applied to a loom relatively easily. -It has been attempted to be used in cases where the net is partially corroded, as proposed in the '828 publication.

As described above, in order to corrode the net, it has been proposed to construct the net by using various corrosive materials, but in the past, these have not been used so much. The reason is as follows. That is, when a corrosive net is laid on the slope, most of these nets are corroded about two months after the net is laid on the slope, and the required strength is lost. The period of 2 months is too short for the plants to germinate from the vegetation material provided on the net and to grow and flourish sufficiently, thus achieving the original purpose of protecting the slopes and growing plants by the net. Can not do it.

Therefore, an ideal net for use in slope protection, etc. maintains mechanical strength such as sufficient tensile strength for the last six months to two years after laying, and is finished after the plant has grown to some extent. It can be said that it is either subdivided before it retains its original shape, or decomposes and corrodes to homogenize in the soil. In this case, when the net main body is formed with a storage portion and the storage portion stores a fertilizer bag or the like, it is desirable that the bag such as the fertilizer bag is also made of a soluble material.

The present invention has been made in view of the above matters, and an object of the present invention is to provide a native species plant such as a flower plant, a wildflower or a tree without being pressed by an alien species plant such as grass. In addition to being able to surely germinate and grow,
For example, a sufficient tensile strength is maintained for about 6 months to 2 years after laying, and then it is fragmented to the extent that it does not stay in its original shape, decomposes or corrodes, and bags such as fertilizer bags have the same quality as soil and soil. The purpose is to provide a vegetation base material that can be turned into vegetation.

[0012]

In order to achieve the above object, in the first aspect of the present invention, a double structure having a front net and a back net made of a blended fiber made of corrosive fiber and synthetic fiber, respectively, is laminated. An accommodating portion is formed in the weft direction between the both nets of the mesh body, and a vegetation bag accommodating vegetative seeds is accommodated in the accommodating portion.

In the second invention, in place of the mixed fiber in the first invention, a mixed fiber rayon in which at least one of a high molecular emulsion and a water-soluble polymer is internally added to a viscose solution is used.

In a third aspect of the present invention, a tape-shaped weft made of the mixed fiber of the first aspect or the mixed fiber of the second aspect of the present invention is used, and a large number of the above-mentioned mixed fibers are provided at appropriate intervals in the transverse direction. About half of the warp yarns in the net-like body woven and woven by the entanglement weaving with the warp yarns made of mixed fiber at a weft yarn interval of 3 to 9 yarns / inch are released from the weft yarns at appropriate intervals in the longitudinal direction, and The wefts are woven and woven at the same rate as the weft spacing to partially form a double portion, and a vegetation bag containing vegetation seeds is accommodated in the double portion.

In a fourth aspect of the present invention, the warp yarns and the weft yarns, which are respectively the mixed spun fiber described in the first invention or the mixed fiber rayon described in the second invention, are knitted and woven between the warp yarns of a reticulated body. At every interval, the bag supporting warp made of the mixed fiber or mixed fiber rayon is knitted in the machine direction while including the weft, and the bag supporting warp is knitted with the weft at appropriate intervals in the longitudinal direction of the mesh body. A loop portion that can be released is formed so as to be able to communicate in the weft direction, a bag support portion is formed on the surface of the mesh body in the weft direction, and a vegetation bag containing vegetation seeds is supported in this bag support portion. There is.

[0016]

In the first aspect of the invention, the corrosive fiber components such as cotton, silk, hemp or recycled fibers (rayon) that compose the double-structured reticulate body are decomposed and corroded by the erosion of microorganisms to gradually increase the strength. On the other hand, the synthetic fiber components such as vinylon, polyester, nylon and acrylic can maintain the strength for a required period.

For example, in the case of a mixed fiber of 70% viscose rayon and 30% polyester, as shown in the lower column of Table 1,
Although the tensile strength gradually decreases as the viscose rayon component decomposes and corrodes, it retains sufficient strength to prevent frost heave and erosion on the slope up to about a year and a half.

The required strength retention period of the reticulate body should be appropriately set according to the condition of the slope. For example, on a slope with a lot of embankment, the growth of vegetation is fast, so a relatively short period, for example, about half a year. However, it may take a relatively long period of time, for example, about two years, on slopes with a lot of bedrock where the growth rate of vegetation is low. Also, there is a considerable difference depending on the construction start time. For example, when the start time is summer, it is necessary to consider that the decrease in strength is relatively quick because the activity of microorganisms is extremely active. .

In any case, in the present invention, by appropriately selecting the mixing ratio of the corrosive fiber and the synthetic fiber, the optimum strength holding period can be set according to the condition of the slope to be constructed and the construction start time. It is possible to flexibly cope with an extremely wide range of application. In addition, corrosive fiber 60 ~
A mixing ratio of 80% and synthetic fibers 40 to 20% is preferable. With the mixing ratio in this range, after the strength retention period, the synthetic fiber components remain as thin lines that do not keep their original shape, but soft materials. In the end, it will be finely divided and miniaturized, so that it will not be an adverse effect that spoils the aesthetics of the slope.

In the second invention, a mixed fiber rayon in which 5% of vinyl acetate resin emulsion, for example, as a polymer emulsion is internally added to a solution of viscose is prepared from viscose rayon alone as shown in the lower column of Table 2. Also, the strength is improved and the hydrophilic group component is decreased, so that it is less likely to be decomposed by microorganisms, and it has the strength to prevent frost heave and erosion on the slope for about one year, and thereafter it is completely homogenized in soil. There is no pollution problem at all.

Also in the present invention, the strength retention period can be adjusted by selecting the proportion of the polymer emulsion or the like to be internally added, and a flexible response can be taken according to the state of the slope or the like. The above vinyl acetate resin emulsion may be internally added in combination with Poval or polyacryl amide, or a simple substance of Poval and polyacryl amide may be added.
Or both can be combined and added internally,
The addition ratio of the internally added material to the viscose solution is generally 2 to
15% is preferred.

Also in the third and fourth inventions, the constituent material of the reticulate body is the same as that in the first and second inventions, and as described above, the strength decreases with time, and finally,
It is subdivided or decomposes and corrodes.

Further, the vegetation substrate in each of the above inventions includes, for example, a storage part formed between nets, a partially formed double part, a bag support part formed on the surface of a net, a flower plant, A vegetation bag containing or provided with seeds such as wild grass and trees together with an appropriate fertilizer, for example, in a bag formed by laminating a net made of rayon (unlike strong rayon) and water-soluble paper. Therefore, when this is laid on the slope, at the beginning of laying, the vegetation seeds in the vegetation bag are covered with the water-soluble paper and do not flow out.

Then, for example, when there is rainfall, the water-soluble paper is quickly dissolved by raindrops, so that the vegetation seeds can easily germinate. In this case, the movement of vegetation seeds is prevented by the net made of rayon, so that the seedlings germinated from the vegetation seeds do not come out of the vegetation bag and can be reliably grown by the supply of fertilizer and water. .
Of the members that make up the bag, water-soluble paper dissolves easily, and the reticulate body is not subdivided until it retains its original shape when the plant grows and grows on the slope, or is decomposed and corroded. Finally, assimilate into the soil.

Therefore, according to any of the inventions, by appropriately changing the kind and combination of the vegetative seeds contained in the bag, it is possible to grow the exotic plants and the native plant in a well-balanced manner on the slope.

[0026]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 6 show an embodiment of the first invention. First, in FIGS. 1 to 3, 1 is a vegetation substrate, and its mesh 2 is composed of a front net 3 and a back net 4. , Warps 5, 6 and wefts 7, in both nets 3, 4.
Each of Nos. 8 is composed of a monofilament or a flat yarn made of a mixed fiber or a mixed fiber having a characteristic that the tensile strength is higher than that of a normal viscose rayon, but the strength decreases with the passage of time. The front net 3 and the back net 4 are knitted with each other by using a Russell machine, leaving a portion which is not knitted in the warp yarns 5 and 6 at an appropriate interval to form a double net structure, and a non-knitted portion. Is formed in the housing portion 9.

In FIG. 1, reference numeral 10 is a thin cotton made of soot attached to the upper surface of the back net 4, and on the upper surface thereof, together with fertilizer and water retention agent 11, for example, flower plants, wild plants or trees, etc. Vegetation seeds 12 are sprayed and held on the entire surface by an adhesive 13 such as polyvinyl alcohol (PVA).

Further, in FIG. 1, 14 and 15 are fertilizer bags and vegetation bags that are appropriately contained and held in the accommodating portion 9. Fertilizer bag 14
Is made of soluble materials such as staple nonwoven fabric, pulp nonwoven fabric, soluble paper, and biodegradable plastic (described later) so that it has the thickness and breathability that fertilizer nutrients gradually exude due to rainfall. The fertilizer, soil amendment agent, water retention agent, and other fertilizer base materials that are directly or indirectly required for plant growth are housed in the prepared bag.

As shown in FIG. 4, the vegetation bag 15 is made of normal rayon and has a net 16 having a mesh size of 3 to 5 mm, and does not interfere with the germination and growth of the vegetation. Made of paper, for example, a soluble sheet 17 made of Bonrick (trade name: Venus Paper Co., Ltd.), laminated in a bag 18 formed so that the net 16 is on the outside. It contains vegetation seeds 19 such as plant seeds, wild grass seeds, and tree seeds.

As the material of the net 16, in addition to ordinary rayon, cotton, or a soluble material obtained by mixing rayon and cotton can be used. Also soluble sheet
As the polymer 17, a high-molecular or starch-based soluble (including so-called semi-soluble) film, a staple non-woven fabric, a pulp non-woven fabric, or the like is used, or polypropylene is used in pulp that is gradually dissolved by moisture. Semi-soluble paper containing about 40% may be used.

As the grass seeds, there are Gleeping Red Fescue, Highland Bentgrass, Red Top,
There are Bermudagrass, Kentucky Bluegrass, and the like, which may be appropriately selected and stored in the bag 18. And as flower plant seeds, yellow daisies, French chrysanthemums,
Daikin chicken chrysanthemum, saw grass, fly squirrel, California poppy, purple hanahana, gypsophila, cosmos,
There are keito, kawaraneshiko, ginseng, etc.,
In addition, as the wild grass seed, mugwort, Japanese pampas grass, Medohagi,
The tree seeds include, and tree seeds include akamatsu, yashabushi, weasel, yamahagi, komatsunagi, etc., which may be appropriately selected and stored in the bag 18. The water retaining material and some fertilizer may also be stored in each of the vegetation bags 18.

The vegetation substrate 1 according to the first aspect of the present invention is configured such that the fertilizer bag 14 and the vegetation bag 15 are appropriately accommodated in the accommodation portion 9 formed in the mesh body 2, but the entire slope is foreign. In order to achieve a well-balanced greening by the seed plant and the native seed plant, the kind of vegetation bag 15 to be housed in the housing 9 and the vegetative seeds 12 to be pre-adhered and sowed on the cotton thin cotton 10 attached to the upper surface of the back net 4 It is important to properly select the types of and combine these well.

Therefore, as shown in FIG. 5, in the accommodating section 9 of the vegetation substrate 1, the fertilizer bag 14 and the flower plants such as annual flower plant seeds and perennial flower plant seeds are accommodated in every other accommodating section 9a. A vegetation bag in which seeds and tree seeds are appropriately mixed 1
5h is accommodated in the accommodating portion 9b sandwiched between the accommodating portions 9a,
For example, a vegetation bag 15b containing grass seeds is stored, and grass seeds and flower plant seeds or tree seeds are stored separately.

Here, examples of annual flower plants include California poppy, purple hanahana, gypsophila, cosmos, and cedar, and examples of perennial flower plants include kawaranadeshiko, ginseng, yarrow, chrysanthemum, and large ginseng chrysanthemum.

The above-mentioned reticulate body 2 will be described in more detail. The warp yarns 5, 6 and the weft yarns 7, 6 which constitute the reticulate body 2 are
When each of 8 is composed of monofilament, for example, so-called mixed spinning rayon in which 70% of corrosive fiber viscose rayon and 30% of synthetic fiber polyester are mixed and spun can be employed. In this case, the data as shown in Table 1 was obtained from an experiment comparing the change characteristics over time assuming the usage state of the tensile strength per 2000 D (denier) of the mixed spun rayon with the conventional viscose rayon alone. Was given.

[0037]

[Table 1]

As can be seen from Table 1, the mixed spun rayon has a tensile strength greater than that of the conventional viscose rayon, and the strength is maintained for a relatively long period of about 1%.
It will be about 40% of the original in half a year. During that time, the viscose rayon component is eroded by microorganisms, so the strength gradually decreases, and at the end of one and a half years, only the polyester component remains in the form of threads, but this is soft and eventually finely divided. Will be converted. Since the experiment started in the summer (July) when the activity of microorganisms was the most active, the decrease in strength was relatively quick.

When the reticulated body 2 made of the mixed spun rayon having such strength characteristics that change with time is laid on the slope 22 as shown in FIG. For about a year and a half, the required strength is maintained and frost heaving and erosion can be prevented to sufficiently protect the slope 22. After that, it is finely divided to a level that does not cause pollution problems. Will be things. As the corrosive fiber, cotton, silk, hemp, etc. can be used in addition to viscose rayon, and as the synthetic fiber, vinylon, nylon, acrylic, etc. can be used in addition to polyester.

Alternatively, when the warp yarns 5 and 6 and the weft yarns 7 and 8 are formed into a flat yarn, for example, a vinyl acetate resin (vinyl acetate) emulsion which is a polymer emulsion is internally added to a viscose solution at 5%. A mixed fiber rayon having improved strength may be used. In this case, the data as shown in Table 2 was obtained from an experiment comparing the change characteristics of the tensile strength per 1000 D (denier) of the mixed fiber rayon with the conventional viscose rayon with time.

[0041]

[Table 2]

From Table 2, in the mixed fiber rayon, the tensile force is strengthened as compared with the conventional viscose rayon alone, and the strength is maintained for a relatively long time, and the strength is about 1/3 in about 1 year. It turns out that After that, everything is decomposed and corroded like viscose rayon. In addition, since this experiment also started in the summer, the strength declined a little earlier.

This mixed fiber rayon is a tape-shaped so-called ribbon straw obtained by spinning a mixed solution prepared by adding the above-mentioned polymer emulsion or water-soluble polymer to the viscose solution from a flat special spinneret. Is formed. In addition to the vinyl acetate resin emulsion as the polymer emulsion, an acrylic resin emulsion or ethylene vinyl acetate resin emulsion can be used, and as the water-soluble polymer, poval or polyacryl amide can be used.

When the vegetation substrate 1 composed of the mesh body 2 made of this mixed fiber rayon is laid on the slope 22 as shown in FIG. 6 as described later, it takes about one year after the laying. While the strength is maintained and the slope 22 is sufficiently protected, the germination and growth of the vegetation seeds 12 can be promoted during that time, and after that, all are decomposed and corroded, and no pollution problem occurs at all.
Since such a mixed fiber rayon can be obtained in the form of a tape as described above, there is an advantage that the commercial value can be increased and the cost can be reduced.

The case of laying the vegetation substrate 1 formed of the mesh body 2 and the like will be described in detail. As shown in FIG. 6, the vegetation substrate 1 is provided with the back net 4 using the anchors 20 and the pegs 21. It is laid so that the side is close to the slope 22 and the vegetation bag 15h is located above the fertilizer bag 14. In the vegetation substrate 1 laid on the slope 22, the vegetation seeds 19 in the vegetation bags 15b and 15h are covered with the soluble sheet 17 and do not flow out at the beginning of laying. Then, for example, when there is rainfall, the soluble film 17 is rapidly dissolved by raindrops, so that the vegetation seeds 19 can easily germinate. In this case, since the movement of the vegetation seeds 19 is held by the net 16 made of rayon, the seedlings germinated from the vegetation seeds 19 can reliably grow by receiving the fertilizer and the water.

Then, in the vegetation base 1, the grass in the vegetation bag 15b housed in the housing portion 9b grows quickly and grows in a streak shape to protect the slope 22. In the other accommodation section 9a of the vegetation substrate 1, although it germinates from flower seeds or tree seeds, it can be grown without being pressed because it is distant from the pasture, and the accommodation section 9a
Since the fertilizer bag 14 is provided inside, it is possible to grow surely, and the entire slope 22 is surely greened in a well-balanced manner.

In addition, the vegetation substrate 1 includes the warp yarns 5 and 6 and the weft yarns 7 in the front net 3 and the back net 4,
Since all 8 are composed of the mixed spun rayon or the mixed fiber rayon described above, the tensile strength is higher than that of a normal viscose rayon, but the strength decreases as time passes. There is. Therefore, the required strength is maintained for about 2 to 2 years after the installation, and the slope 22
Can be protected.

In the vegetation substrate 1, the reticulate body 2 gradually reduces in strength from the time when the plant grows to a certain extent and grows, and is subdivided until it does not retain its original shape, or decomposed and corroded. Finally, it is assimilated into the soil. Further, the fertilizer bag 14 housed in the housing portion 9 is made of a soluble material such as a staple non-woven fabric, a pulp non-woven fabric, soluble paper, biodegradable plastic, and the like, so that the fertilizer bag 14 germinates for a certain period of time and grows to some extent. After the necessary period), it will be decomposed and become homogenous with the soil. And a bag of vegetation bags 15
Of the members constituting 18, the soluble sheet 17 is easily dissolved, and the net 16 is also corroded when the plant grows and grows on the slope 22 and finally assimilated into soil.

FIGS. 7 and 8 show an embodiment of the second invention. First, in FIG. 7, 23 is a vegetation substrate, and the net 24 has both the fertilizer bag 14 and the vegetation bag 15 or the fertilizer bag. A double section 25 is formed for receiving 14.

The structure of the net 24 will be described with reference to FIG. 8 as well. As the warp 26, for example, a monofilament made of mixed spun rayon and having a denier of about 400 to 700 denier is used.
In addition, as the weft yarn 27, for example, a mixed fiber rayon 1000-
Each tape-shaped flat yarn of about 2000 denier is used.

Next, the manufacturing method will be described. The warp yarn 26 and the weft yarn 27 are each woven on a loom, and the weft spacing is 3 to 9 yarns /
As a inch, a single net 24 is woven by plain weaving or entwining weaving with a large number of two or more warp yarns 26 every 10 to 100 mm in the transverse direction. In this case, if the width of the weft yarn 27 is large, the number of shots per inch may be reduced, and if it is small, it may be increased. Further, as the weft yarn 27, a wide weft yarn folded a plurality of times to be narrowed may be used. Then, by setting the shading rate of the mesh body 24 at the time of knitting to about 50%, the moisture state in the fertilizer bag 14 can be stabilized.

Next, an appropriate length in the vertical direction (for example, 20 to 80 cm)
About half), about half of the warp yarns 26 forming the net 24 are released from the weft yarns 27, and the released warp yarns 26 ′ have the same number (3 to 9 / inch) of the weft yarns 27 ′ ( This weft yarn 27 'is also made of mixed fiber rayon) and is knitted. For example, the portion 25 that is divided into the front and back sides is 3 to 10 cm.
After providing about a certain amount, it returns to the single mesh body 24 again. By repeating this, the partial double mesh body is completed, and the fertilizer bag 14 and the vegetation bag 15 are appropriately accommodated in the double part 25, whereby the vegetation substrate 23 is obtained.

9 and 10 show an embodiment of the third invention. First, in FIG. 9, 28 is a vegetation substrate, and the net 29 has both the fertilizer bag 14 and the vegetation bag 15 or the fertilizer bag. A bag support 30 for accommodating 14 is formed.

The structure of the reticulate body 29 will be described with reference to FIG. 10 as well. As the warp 31, for example, a monofilament of about 400 to 700 denier made of mixed spun rayon,
Further, as the weft yarn 32, for example, a mixed fiber rayon 1000-
The flat yarn of about 2000 denier is used.

Next, the manufacturing method will be explained.
The weft yarn 32 and the weft yarn 32 are respectively applied to a loom, and the single net-like body 29 is knitted by plain weaving or entanglement weaving. When the above-mentioned knitting is carried out, warp yarns 33 for the bag support portion (this bag support portion warp 33 is also made of mixed spun rayon) are warped between the warp yarns 31 at appropriate intervals so as to include the warp yarns 31. While weaving in the direction, it is released from the weft thread 32 at every longitudinal interval to form a loop portion 34 that can communicate in the weft thread 32 direction on the surface of the mesh body 29, and between the loop portion 32 and the mesh body 29. The bag support portion 30 is formed.

The mesh body according to the second and third inventions
Also in 24 and 29, its double part 25 and bag support
It goes without saying that the fertilizer bag 14 and the vegetation bag 15 are appropriately arranged in the 30 to achieve the same effects as the first invention.

As can be understood from the above description, the vegetation bases 1, 23, 28 of the present invention have the fertilizer bag 14 and the vegetation bag 15 regardless of whether the mesh bodies 2, 24, 29 have a double structure. Although it can be accommodated or supported, the fertilizer bag 14 and the vegetation bag 15 when the vegetation substrates 1, 23, 28 are laid on the slope 22.
The arrangement of is not limited to that shown in FIG. 5, and various arrangements are conceivable.

That is, FIG. 11 shows an example of the arrangement. In the example shown in FIG. 11A, the seed 35 of the annual flower plant is used.
A layer 36 of soft cotton sprinkled and sown is adhered to the reticulate body 2, while the fertilizer bag 14 and the vegetation bag 15h containing the seeds of the perennial flower plant are accommodated in the accommodation section 9a, and the accommodation section 9b is accommodated. A vegetation substrate 1 containing a vegetation bag 15b containing grass seeds therein is laid so that the layer 36 is close to the slope 22.

Further, in the case shown in FIG. 7B, a layer 38 of cotton wool, which is seeded and seeded with annual seedling 37 and perennial flower plant seeds 37, is attached to the net body 2 while the layer 38 is attached to the net body 2. The fertilizer bag 14 and the vegetation bag 15b containing the grass seeds are housed in the housing part 9b, and the vegetation substrate 1 is housed in the housing part 9b so that the layer 38 is close to the slope 22. Is laid in.

Needless to say, in FIG. 11 described above, the mesh body 24 according to the second invention or the mesh body 29 according to the third invention may be used as the mesh body.

Further, in the above-mentioned embodiment, the vegetation substrate 1 is merely laid on the slope 22 or the like, but from the upper side of the vegetation substrate 1 laid on the slope 22 or the like to the slope 22 or the like. You may make it spray a vegetation base material. In that case, for example, only flower plant seeds may be provided as seeds on the vegetation base 1 side, and only tree seeds may be mixed into the sprayed vegetation base material.

Further, the spraying method may be a so-called dry method in which the seed and the organic material, the chemical fertilizer, the soil conditioner and the water retention agent are simply mixed sufficiently without using water. It can also be used in a wet spraying method using gunki or the like. Further, as the vegetation material to be sprayed, a material such as PM C material (registered trademark owned by Jomo Ryokusan Kogyo Co., Ltd.) obtained by converting sludge into vegetation material is used, and this is sprayed using a mini cleat pump. You may make it spray by.

[0063]

As described in detail above, according to the vegetation substrate of the present invention, seeds and flower plants of alien species such as grass and grass,
Vegetative seeds such as seeds of native plants such as wildflowers and trees can be reliably retained without migration or runoff, and their germination and growth can be smoothly performed. In particular, seeds and flower plants of exotic plants such as grass,
When the seeds of native plants such as wildflowers and trees are arranged separately from each other, it is possible to germinate native plants such as flowers, wildflowers and trees without being pressed by alien plants such as grass.・ It can be grown and can be planted in a desired condition on the slope.

Further, in the vegetation substrate according to the present invention, the reticulate body maintains a desired strength within a predetermined period after being laid on a slope or the like, so that the vegetation bag is prevented from icing and erosion on the slope during that period. The vegetation seeds inside will germinate and maintain its strength until various plants grow to some extent,
The vegetation seeds and plants will not be washed away, and the slope will be greened all over.

The reticulate body which has maintained its strength for a certain period after being laid is
After a certain period of time, its strength gradually decreases, and finally it is subdivided to the extent that it does not retain its original shape, or gradually decomposed and corroded to assimilate into soil. In addition, fertilizer bags and vegetation bags themselves stored in the storage section are gradually dissolved and returned to the soil. Therefore, unlike conventional methods, it is possible to promote greening without promoting plastic pollution.

According to the present invention, it is possible to surely germinate and grow native species plants and flowers such as wild grasses and trees without being pressed by alien species plants such as grass. Needless to say, the vegetation substrate according to the present invention can be applied to other than greening of slopes.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a vegetation substrate according to a first invention.

2A and 2B are a perspective view and a side view, respectively, showing a main part of a mesh-like body of the vegetation substrate.

FIG. 3 is a cross-sectional view showing an enlarged main part of the mesh body.

FIG. 4 is a perspective view showing an example of a vegetation bag accommodated and held in the vegetation base.

FIG. 5 is an enlarged cross-sectional view showing an example of a state in which a fertilizer bag and a vegetation bag are accommodated in the vegetation base.

FIG. 6 is a cross-sectional view showing a method of greening a slope using the vegetation substrate.

FIG. 7 is a plan view showing an example of a vegetation substrate according to the second invention.

FIG. 8 is a plan view showing a main part of a net-like body of the vegetation substrate.

FIG. 9 is a perspective view showing an example of a vegetation substrate according to a third invention.

FIG. 10 is a plan view showing a main part of a net-like body of the vegetation substrate.

11 (A) and 11 (B) are enlarged cross-sectional views showing a storage state of a fertilizer bag and a vegetation bag in the vegetation substrate according to the present invention.

[Explanation of symbols]

1, 23, 28 ... Vegetation substrate for greening, 2, 24, 29 ... Net body, 3
… Front net, 4… Back net, 5, 6, 26, 31
... Warp, 7, 8, 27, 32 ... Weft, 9 ... Storage part, 15 ... Vegetation bag, 19 ... Vegetation seed, 25 ... Double part, 26 '... Free warp, 30 ... Bag support part, 33 ... Warp for bag support, 34… Loop part.

Claims (4)

[Claims] 1. An accommodating portion is formed in the weft direction between both nets of a net having a double structure in which a front net and a back net made of a mixed fiber of corrosive fiber and synthetic fiber are overlapped with each other. A vegetation base for greening, characterized in that a vegetation bag containing vegetation seeds is accommodated in the accommodating portion. 2. A reticulated body having a double structure in which a front net and a back net made of a mixed fiber rayon in which at least one of a high molecular emulsion and a water-soluble polymer is internally added to a viscose solution are superposed. A vegetation substrate for greening, characterized in that a housing portion is formed between the both nets in the weft direction and a vegetation bag containing vegetation seeds is housed in the housing portion. 3. A tape-shaped weft made of the mixed fiber of claim 1 or the mixed fiber rayon of claim 2, and a warp made of a large number of the mixed fiber or mixed rayon at appropriate intervals in the transverse direction. As a result, about half of the warp yarns in the net-like body woven by the entanglement weaving with a weft yarn interval of 3 to 9 threads / inch are separated from the weft yarns at appropriate intervals in the longitudinal direction, and
It is characterized in that the weft is woven and weaved in the released warp at the same ratio as the weft spacing to partially form a double portion, and in this double portion, a vegetation bag containing vegetation seeds is accommodated. A vegetation base for greening. 4. A braided fiber of claim 1 or a mixed fiber rayon of claim 2, wherein a warp and a weft are knitted and woven together.
A bag supporting warp made of the mixed fiber or mixed fiber rayon is knitted in the longitudinal direction while including a weft, and at appropriate intervals in the longitudinal direction of the mesh body, the bag supporting warp is released from the weaving with the weft, A loop portion that can communicate in the weft direction is formed, and a bag support portion is formed on the surface of the mesh body in the weft direction, and a vegetation bag containing vegetation seeds is supported in the bag support portion. Vegetation substrate for greening.