JPH08302701A - Vegetation base for slope-face tree planting - Google Patents

Abstract

PURPOSE: To attain greening of a slope face with grass and wooding of the slope face with trees which receive no constraint of the selection of kinds, and to provide a vegetation base for slope-face tree planting proper even in the points of workability and working properties. CONSTITUTION: The holding sections 3 of a stopping material are mounted on the top face side of a net 1 stretched on the face of a slope N at regular intervals while a soluble sheet 5 is stuck on the underside side of the net 1. Mixed seeds (a), (b), in which grass seeds (a) and tree seeds (b) capable of being mixed and sown with the grass seeds (a), and tree seeds (c) incapable of being mixed and sown with the grass seeds (a) are carried alternately to sheet sections 5 among the holding sections 3, 3. The stopping material consists of at least one of fibrous mats, in which fertilizer bags, in which a fertilizer is stored in bags, coconut fibers, etc., are bundled, and held in the holding sections 3.

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 slope greening.

[0002]

2. Description of the Related Art When greening a slope with plant seeds, it is preferable to use grass seeds which have strong germination and vigor and are fast growing from the viewpoint of preventing surface erosion of the slope and early greening of the slope. is there. On the other hand, although the growth is slow, it is preferable to use tree seeds in terms of harmony with the surrounding landscape of the slope and permanent stabilization.

Based on this, for example, grass seeds and tree seeds are mixed with a vegetation base material containing organic compost, chemical fertilizers, plant fibers, water retention agents, soil conditioners, etc., and vegetation containing the mixed seeds is mixed. We adopted a greening method in which the base material is sprayed onto the slope, but depending on the variety of the tree, the seedlings are overwhelmed by the grass with strong germination and vigor and disappear, resulting in a limited variety of trees. Only the slope greening with grass could be achieved.

That is, trees of limited varieties such as yamahagi, weasel, komatsuna, and the like were good in germination and growth even if the seeds were mixed-sown with grass seeds, but the alder trees, yashabushi, red pine, kunugi, sharinbai, Many trees, such as Arakashi, mix seeds with grass seeds,
The seedlings of the tree were overwhelmed by the strong sprouting and vigor of the grass and disappeared, and the slope greening was forced only by the grass.

Therefore, the present inventor diligently devised a mixed seed of grass seed and a tree seed which allows mixed seeding of the grass seed, and a tree seed which cannot be mixed sowed with the grass seed,
We have developed a so-called zone-based greening method in which each vegetation base material is mixed with the vegetation base material, and the vegetation base material containing these seeds is sprayed alternately in the slope direction of the slope.

According to such a method, trees such as yamahagi, weasel, komatsuna and the like can be grown in the grass growth zone, and the grass is not pressed between these zones. For example, it is possible to grow trees such as Yamanoki, Yashabushi, and Akamatsu. It is possible to plant the entire slope with trees that are not restricted by variety selection, while the slope is greened with pasture.

[0007]

However, no matter how many zones the vegetation base material is sprayed into, the vegetation base materials may be partially mixed during spraying or may be mixed by scattering. In some cases, tree seeds and pasture seeds, which cannot be mixed together, are mixedly sown.

The largest cause of such substantially mixed seeding lies outside. That is, when the slope was washed with rain or frost heaving occurred, part of the grass seeds and tree seeds flowed downward, despite sprinkling the vegetation base material into zones at breaks, It seems that grass seeds have been mixed-sown with non-mixed tree seeds, and as a result, greening that is the same as mixed seeding of grass seeds, that is, slope greening with limited variety of trees and grasses can be desired. It wasn't.

In addition, in the above-mentioned vegetation base material spraying method, it is necessary to bring a spraying machine such as a mortar gun machine or aeroceder to the slope, and then to perform the troublesome work of alternately spraying two kinds of vegetation base materials. It took a lot of time and labor for the construction, and there was also a problem in terms of workability and workability.

The present invention was made for the purpose of establishing the above-mentioned zone-based greening method.
A vegetation substrate for slope revegetation that is suitable for slope revegetation that can be planted in a strip shape with pasture grass, and the entire slope can be planted with trees that are not restricted by variety selection, and also in terms of workability and workability. It is provided.

[0011]

That is, the vegetation substrate for slope greening according to the present invention is provided with accommodating portions for damming members at predetermined intervals on the upper surface side of the net stretched over the slope. Along with, a soluble sheet is attached to the lower surface side of the net,
And, in the sheet portion between the accommodating portions, mixed seeds of grass seeds and tree seeds that allow mixed sowing of the grass seeds and tree seeds that cannot be mixed sowed with the grass seeds are alternately carried. It is characterized in that it consists of

[0012] In addition, if it is desired to carry large-sized tree seeds such as kunugi, sharinbai, and oak, on the sheet portion, it is difficult to carry them directly on the sheet portion. For carrying large-sized tree seeds, the seeds may be accommodated in a bag made of a corrosive material, and the seed bag may be integrated with the sheet portion by anchor pins or anchor bolts. At least one of a fertilizer bag in which fertilizer is stored in the bag and a fiber mat in which palm fibers and the like are bundled is stored in the storage unit as a blocking member.

[0013]

According to the above characteristic structure, a simple operation is performed in which the dam is housed in the housing portion and the net is stretched on the slope so that the dam is along the contour line direction. Thus, a state in which mixed seeds of grass seeds and tree seeds that can be mixed-sown with them and tree seeds that cannot be mixed-sown with grass seeds are sown in each zone is revealed.

Since these sowing zones are strictly divided by the damming material, the soluble sheet is melted or seeds are released from the soluble sheet, and
Even if some of the grass seeds or tree seeds flow downward due to rain washed on the slopes or frost heave, these seeds are blocked by the dam, so the lower seeding So-called mixed sowing due to the flow of seeds into the zone is reliably prevented.

Therefore, it becomes possible to green the slope in the form of a strip with pasture and to make the entire slope into a forest with trees that are not restricted by variety selection. Early greening of the slope due to pasture and early erosion. Prevention, as well as harmony with the surrounding landscape of slopes and permanent stabilization will be reliably established.

As the damming material, as described above,
A fertilizer bag containing fertilizer in a bag and a fiber mat obtained by bundling palm fibers and the like, which have excellent filterability of running water, are preferably used.
For example, if a fertilizer bag containing fertilizer components such as fast-acting, slow-acting, and slow-acting is selected, it is expected that good germination and growth of seeds can be achieved by maintaining the fertilizing effect for a long time.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a vegetation base for slope greening. This vegetation base has a bag 3 in which an accommodating portion 3 for a dam 2 is provided at a predetermined interval on the upper surface side of a net 1 stretched on the slope. Formed into a
Also, a soluble sheet 5 is adhered to the lower surface side of the net 1 with a water-soluble sizing agent 4 such as polyvinyl alcohol, and a tree seed that is good in germination and growth even when mixed with the grass seed a and sowing. mixed seeds a and b with b,
The tree seeds c whose germination / growth is pressed by the mixed seeding with the grass seeds a and the sheet parts 5a, 5 between the accommodating parts 3, 3
b alternately supported.

The mixed seeds a, b and the tree seed c may be directly supported on the sheet portions 5a, 5b, but in this embodiment, the mixed seeds a, b and the tree seed c are combined. Separately mixed with vegetation base materials 6 and 7 made of one or more of organic compost, chemical fertilizer, plant fiber, soil conditioner, and water retention agent, and separately contain mixed seeds a and b and tree seed c. The vegetation base materials 6 and 7 are alternately adhered to the sheet portions 5a and 5b by a water-soluble sizing agent 8 such as polyvinyl alcohol. In addition, in FIG. 2 in which the vegetation substrate is viewed from the back side, the vegetation substrates 6 and 7 are not shown in order to facilitate discrimination between the mixed seeds a and b and the tree seed c.

Such a vegetation substrate for slope greening is manufactured, for example, as follows. That is, as shown in FIG. 3, the net 1 on which the accommodating portion 3 of the damming material 2 is formed is moved to the back so as to move on the conveyor 9 so that the net 1 is covered on the back surface (top surface in the drawing). The soluble sheet 5 is unrolled and moved, and the water-soluble sizing agent 4 is applied to the surface portion of the sheet 5 on the net 1 side, and the sheet 5 is attached to the back surface of the net 1.

Then, a water-soluble sizing agent 8 is applied to the upper surface of the sheet 5, and the vegetation base material 6 containing the mixed seeds a and b and the tree seed c separately on the application surface of the water-soluble sizing agent 8. 7
The vegetation base materials 6 and 7 are adhered to the soluble sheet 5 by means of so-called bubble adhering means in which innumerable bubbles are included by alternately switching and supplying from the hoppers 10 and 11. The vegetation base materials 6 and 7 are switched and supplied, for example, each time the sensor 12 detects the housing portion 3 and the housing portion 3 passes through the hopper opening.
It is performed with a time lag corresponding to the width dimension of the accommodating portion 3.

As the material of the net 1, a material having excellent corrosion resistance such as polyethylene or polypropylene is often used, but like plant fibers such as hemp and jute or viscose rayon. Like seeds that are corroded in a relatively short period of time, strong rayon, corrosive materials that have been subjected to antiseptic treatment, and mixed-spun fibers that consist of corrosive fibers and synthetic fibers, plant seeds germinate and grow. Until the greening and stabilization are achieved, there may be used one in which the timing of corrosion can be adjusted so that the slope stabilizing effect of the net itself is exerted.

As the soluble sheet 5, plant seeds a to
Thin cotton or crepe paper, which decomposes or dissolves early in water and dissolves in the environment so as not to hinder the germination and growth of c, other high-molecular film or starch-based film, water-soluble paper with cheesecloth, soft cotton, soft cloth A non-woven fabric, a pulp-based non-woven fabric, or the like is arbitrarily selected.

In this embodiment, the vegetation base materials 5 and 6 containing the mixed seeds a and b and the tree seed c separately are adhered to the lower surface side of the soluble sheet 5, but they are adhered to the upper surface side. Good. Also, a two-layer structure in which the above-mentioned sheets of thin cotton, paper, film, non-woven fabric, etc. are adhered so as to cover the vegetation base materials 5 and 6 and the vegetation base materials 5 and 6 are positioned between the sheets. May be done.

As the above-mentioned grass seed a, Kentucky
31 non-native species such as fescue, highland bentgrass, bermudagrass, and red top are selected, and tree seeds b that can be mixed-sown with grass seeds a include yamahagi,
Weasel, Komatsu, etc. are selected, and as the tree seed c that cannot be mixed-sown with the grass seed a, yamanoki, yashabushi, red pine, etc. are selected.

As shown in FIG. 4, the vegetation substrate having the above structure has a damming material 2 in a housing portion 3 formed at a predetermined interval.
The net 1 is stored on the slope N while fixing it with the anchor pin or the anchor bolt 14 so that the storage part 3 of the dam 2 is oriented in the contour line direction. It is stretched in the direction of inclination.

The nets 1 are stretched side by side in the contour direction according to the scale of the slope N. Here, the state of slope greening by the introduction of grass and trees and the stretched state of the net 1 are combined. As shown in FIG. 5, adjacent nets 1 and 1
The blocking material accommodating portions 3 and 3 are stretched so as to be continuous with each other, and under the stretching, a carrying section (sheet portion 5a) of the vegetation base material 6 including the mixed seeds a and b and a non-mixable seeding It is preferable that the supporting section (sheet portion 5b) of the vegetation base material 7 including the tree seeds c be adjacent to each other, but in a staggered pattern in which the supporting sections of the vegetation base materials 6 and 7 are adjacent to each other. You may stretch.

If it is difficult to distinguish the carrying section of the vegetation base materials 6 and 7, for example, one of the vegetation base materials 6 and 7 may be mixed with food red or the vegetation base materials may be mixed. By applying a color coating to one of 6, 6 or making the color of organic compost used as the vegetation base material 6, 7 different,
The carrying sections of the vegetation base materials 6 and 7 may be displayed in different colors.

In this way, a simple operation is performed in which the net 1 containing the damming material 2 in the accommodating portion 3 is stretched on the slope N so that the damming material 2 is along the contour line direction. Thus, the mixed seeds a and b of the grass seed a and the tree seed b that allows mixed sowing with the grass seed a and the tree seed c that does not allow mixed sowing with the grass seed a are substantially inclined with respect to the slope N. The seeded state is revealed in each direction.

Since these seeding zones are strictly defined by the containing portion 3 containing the damming material 2, the soluble sheet 5 is melted or seeds are released from the soluble sheet 5. Moreover, the slope N is washed with rain or frost is formed, and the grass seed a or the tree seed b,
Even if a part of c flows downward, these seeds ac
Since the seeds are blocked by the damming material 2, so-called mixed seeding due to the inflow of the seeds a to c into the lower zone is reliably prevented.

Then, eventually, the mixed seeds a, b and the tree seed c germinate and grow, so that the slope N is greened by the grass and the slope N between them is not restricted by the variety selection. It is made into a forest by trees,
Early greening of slope N by grass and early erosion prevention, as well as harmony with the surrounding landscape of slope N and zone-based greening of permanent stabilization are surely established.

It suffices that the damming material 2 has a function of preventing the seeds a to c from being washed away. In this embodiment, the fertilizing effect is maintained for a long period of time so that good seeds can be obtained. As the germination / growth is expected, for example, a fertilizer bag containing a fertilizer 2b of fast-acting, slow-acting, slow-acting, etc. in the bag 2a made of a soluble sheet is used as the damming material 2. Even if it is a fiber mat or the like in which palm fibers or the like are bundled, which is excellent in the filtering property of running water, it can be suitably implemented.

By the way, as the tree seeds c that cannot be mixed-sown with the grass seeds a, besides the above-mentioned Yashabushi, Yamanoki, Akamatsu, etc., there are Kunugi, Sharinbai, Arakashi, etc., but these tree seeds c are large grains. Therefore, it is difficult to carry these on the sheet portion 5b by the above-mentioned adhesive means using the water-soluble sizing agent 8.

In order to achieve the introduction of a tree with such a large-sized tree seed c in addition to the introduction of a tree with a tree seed c such as Yashabushi, Yamanoki, Akamatsu, etc., as shown by the phantom line in FIG. Seed bag 1 made of a corrosive material that enables germination and growth of the tree seed c
5, and the net 1 may be stretched and fixed to the seat portion 5b with anchor pins or anchor bolts 16.

At this time, in the illustrated example, the seed bag 15 is positioned on the seat portion 5b near the accommodating portion 3 of the damming material 2, but the seed bag 15 is positioned on the seat portion 5b. It may be located in the central portion between the housing portions 3 and 3. Alternatively, although not shown, the accommodating portion 3 for the blocking material 2
It is also possible to form a seed bag accommodating portion similar to that in the sheet portion 5b and store the seed bag in this accommodating portion, or to fix the seed bag to the sheet portion 5b with a string-shaped body.

However, when the sheet is adhered so as to cover the vegetation base materials 5 and 6 and the vegetation base materials 5 and 6 are positioned between the sheets, a two-layer structure is adopted. The large tree seeds c can be carried on the sheet portion 5b. In addition, the above-mentioned carrying means is not limited to the large-sized tree seed c which cannot be mixed-sown with the grass seed a,
The same can be applied to a large-sized tree seed b that can be mixed-sown with the grass seed a.

[0036]

As described above, according to the vegetation substrate for slope greening according to the present invention, the damming material is housed in the housing part and the damming material is arranged along the contour line direction. Then, by a simple work of just stretching the net on the slope, mixed seeds of grass seeds and tree seeds that can be mixed-sown with them, and tree seeds that cannot be mixed-sown with grass seeds are prepared. , The seeded condition is revealed in each zone.

Since these sowing zones are strictly divided by the accommodating portion in which the damming material is accommodated, the slopes are washed with rain or frost is generated, and grass seeds or tree seeds are sown. Even if some of the seeds flow downward, these seeds are blocked by the damming material, so that so-called mixed seeding due to the flow of seeds into the lower zone can be reliably prevented. It becomes possible to make the whole of the slope with trees that are not restricted by variety selection, while vegetatively planting the grass in strips with grass,
Early greening of slopes and early erosion prevention by grass,
At the same time, harmony with the surrounding landscape on the slopes and zone-based greening for permanent stabilization were steadily established.

[Brief description of drawings]

FIG. 1 is a perspective view of a vegetation substrate, a part of which is exaggeratedly illustrated.

FIG. 2 is a perspective view of the back side of the vegetation substrate.

FIG. 3 is a morphological diagram showing an example of manufacturing a vegetation substrate.

FIG. 4 is a cross-sectional view showing a state in which a vegetation substrate is stretched on a slope.

FIG. 5 is an explanatory diagram showing a state of slope greening by introducing a tree and a state of extending a vegetation substrate together.

[Explanation of symbols]

1 ... Net, 2 ... Damming material, 3 ... Storage part, 5 ... Soluble sheet, 5a, 5b ... Sheet part, 6, 7 ... Vegetation base material,
a ... Grass seeds, b ... Mixed seeding tree seeds, c ... Mixed seeding impossible tree seeds, N ... Slopes.

Claims (3)

[Claims] 1. An accommodating portion for a blocking material is provided at a predetermined interval on an upper surface side of a net stretched on a slope, and a fusible sheet is attached to a lower surface side of the net, and ,
In the sheet portion between the accommodating parts, mixed seeds of grass seeds and tree seeds that allow mixed seeding of the grass seeds and tree seeds that cannot be mixed sowed with the grass seeds are alternately supported. A vegetation substrate for slope greening, which is characterized by the following. 2. The vegetation substrate for slope greening according to claim 1, wherein large-sized tree seeds are contained in a bag made of a corrosive material, and the seed bag is integrated with the sheet portion. 3. The damming material comprises at least one of a fertilizer bag in which fertilizer is housed in a bag and a fiber mat in which palm fibers are bundled, and the damming material is held in a housing portion. The vegetation substrate for slope greening described in 2.