JP2012237191A - Greening method with due considerations to ecosystem and greening structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a greening method with due considerations to ecosystem and a greening structure, capable of reliably restoring a wide variety of site vegetation in a short period.SOLUTION: In a greening method with due considerations to ecosystem, an attachment 2 for capturing flying seeds on a wire net covering a slope face is installed. The attachment comprises a wire net member 4 formed of a plurality of wire rods 6 having an insertion part 7 projecting downward in a comb teeth form, and cover means 5 which covers the whole surface of at least a portion above the insertion part 7 of the wire net member 4. The wire net member has right and left wing parts 4b, both of which can rise on the wire net facing the mountain side, with the tips apart from each other in the contour direction of the slope face. The bottom edge of the wire net member is provided with a hook part 9 which is positioned above the bottom edge of the insertion part and engageable with the wire net. The hook part engages the wire net for connection of the attachment to the wire net, and the insertion part is inserted in the slope face.

Description

  The present invention relates to, for example, an ecosystem-friendly greening method and a greening structure suitable for fixing flying seeds on a slope.

  Conventionally, slope planting has been carried out mainly on grass species, but in recent years, there has been a growing demand for planting with an emphasis on ecosystem conservation and biodiversity. One of the methods for realizing such greening is a greening method using buried seeds contained in the topsoil around the construction site (for example, see Patent Document 1).

Japanese Patent No. 2750066

  However, the above greening method has been pointed out to be improved because the amount of buried seed in the topsoil is not constant, so the certainty of greening is not so high, and it may take a long time to be greened. Yes.

  The present invention has been made in consideration of the above-mentioned matters, and an object of the present invention is to provide an ecosystem-friendly greening method and a greening structure capable of quickly and reliably realizing restoration of a wide variety of local vegetation. .

In order to achieve the above object, an ecosystem-friendly greening method according to the present invention is an ecosystem-friendly greening method in which an attachment for capturing flying seeds is installed on a wire mesh covering a slope,
The attachment comprises a wire mesh member having a comb-like insertion portion made of a plurality of wire rods and projecting downward, and cover means covering the entire surface of the wire mesh member at least above the insertion portion.
The wire mesh member is configured to be able to stand upright on the wire mesh with the tips of the left and right wing portions spaced apart from each other at least in the contour line direction of the slope and both facing the mountain side, and at the lower end of the wire mesh member, In addition to the insertion part, a hook part is formed which is located above the lower end of the insertion part and can be locked to the wire mesh,
As the cover means, a sheet-like body having water permeability and water retention, and a fertilizer bag holding a greening material is provided,
The hook portion is locked to the wire mesh and the attachment is connected to the wire mesh so that the wire mesh member stands on the wire mesh with both ends of the left and right wing portions of the wire mesh member facing the mountain side. And the said insertion part is inserted in a slope (Claim 1).

  In the ecosystem-friendly greening method, after the attachment is installed on the wire mesh, a vegetation base material may be sprayed from the upper side of the wire mesh (Claim 2).

  In the ecosystem-friendly greening method, the insertion length of the insertion portion with respect to the slope may be 1 to 5 cm (Claim 3).

  On the other hand, in order to achieve the above object, the greening structure according to the present invention is characterized in that it is formed on a slope by the ecosystem-friendly greening method according to any one of claims 1 to 3. (Claim 4).

  In the inventions according to claims 1 to 4, an ecosystem-friendly greening method and a greening structure capable of quickly and reliably realizing restoration of a wide variety of local vegetation are obtained.

  That is, in the greening method of the invention according to each claim, since at least the portion above the insertion portion in the wire mesh member is covered entirely by the cover means from the inside, the flying seeds and soil particles are securely fastened to the mountain side of the attachment. (Capture). Therefore, it is possible to restore the local vegetation by actively using the flying seeds at the small steps formed on the mountain side of the attachment, and the capture efficiency is good. In addition to the speed of greening, improvements in greening reliability can be achieved.

  Moreover, in the above greening method, the attachment can be firmly connected to the wire mesh by an extremely simple operation of engaging the hook portion with the wire mesh and inserting the insertion portion into the slope. In addition, if the hook is locked to the wire mesh on the mountain side of the insertion part, and the insertion part is inserted substantially vertically or substantially perpendicular to the slope, the attachment flows after the vegetation base material or construction. A part of the force that is received when catching the flowing sand and sand etc. works in the direction to keep the insertion part in the slope soil or the direction to insert into the slope, but it does not work in the direction to pull out the insertion part from the slope. Therefore, the connection state of the attachment to the wire mesh can be held very firmly.

  In the invention according to claim 2, greening immediately after construction and standby type greening waiting for incoming seeds can be performed in combination, and if a topsoil seed bank is added to the growth base material to be sprayed, the local ecosystem is disturbed. It is possible to efficiently grow plants without any problems. In addition, in the conventional tree planting method using only buried seeds, it is common to mix at least about 10% of the topsoil seed bank with the vegetation base material to be sprayed. The ratio can be greatly reduced, and the reduction of the amount of topsoil seed banks that require a great deal of labor for harvesting is directly linked to cost reduction.

  If the vegetation base material is sprayed before the attachment is installed, the vegetation base material layer interferes with the installation of the attachment, and the vegetation base material is stepped and solidified during installation. Since there exists a possibility, it is preferable to spray after installation of an attachment like Claim 2.

  In addition, in the invention according to claim 3, by making the insertion length of the insertion part into the slope be 1 to 5 cm, the effect of realizing the restoration of various local vegetation early and reliably Can be played more reliably. That is, if the insertion of the insertion portion into the slope is too shallow, the attachment is likely to float from the wire mesh when subjected to an external force such as wind, and is likely to become unstable. On the other hand, if you try to insert the insertion part too deeply, not only will the work be difficult and labor will be increased, but the insertion part will not reach the set depth, and there will be a large gap between the wire mesh and the cover means. Once formed, the runaway soil will escape through the gaps, and the seeds will not be well settled.

It is explanatory drawing which shows roughly the structure of the tree planting structure obtained by the ecosystem consideration type tree planting method which concerns on one embodiment of this invention. It is a longitudinal cross-sectional view which shows the structure of the said greening structure roughly. (A) And (B) is the front view and top view which show roughly the structure of the attachment used for the said ecological consideration type greening construction method. It is a side view which shows the structure of the said attachment roughly. It is a rear view which shows the structure of the said attachment roughly. It is a bottom view which shows the structure of the said attachment roughly. (A) is a front view schematically showing the structure of the attachment before the wire mesh member is processed, and (B) is a rear view schematically showing the structure of the wire mesh member after processing. (A) And (B) is the front view and side view which show the structure of the cover means of the said attachment roughly. (A)-(C) are the front view, top view, and side view which show schematically the structure of the modification of the said attachment. (A) And (B) is the front view and top view which show schematically the structure of the other modification of the said attachment.

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

  As shown in FIGS. 1 and 2, the eco-friendly greening method according to the present embodiment (hereinafter abbreviated as “greening method”) is provided on a wire mesh (lass wire mesh in this example) 1 covering the slope N. After installing the attachment 2 for catching flying seeds, a vegetation base material 3 is sprayed from the upper side of the wire net 1 to construct a greening structure. Here, the state before spraying the vegetation base material 3 is shown on the right side of FIG. 1, and the state after spraying is shown on the left side. The wire mesh 1 is fixed (laid) on the slope N by an anchor pin (not shown), for example.

  The attachment 2 is provided with the cover means 5 shown in FIGS. 8A and 8B on the inner side (front side) of the wire mesh member 4 shown in FIG. 7B, and has a structure that is substantially symmetrical. .

  Specifically, as shown in FIG. 7B, the wire mesh member 4 is composed of a plurality of wire rods 6 and has insertion portions 7 protruding downward in a comb-teeth shape. The wire mesh member 4 is also obtained by bending the left and right sides of the flat wire mesh body 8 shown in FIG. 7A by, for example, bending using a bender machine, and is substantially U-shaped in plan view (FIG. 3B ) And FIG. 6). In FIG. 7B, two broken lines B indicate the bent portions of the wire mesh member 4, and a portion sandwiched between the two bent portions B in the wire mesh member 4 is a substantially flat main body 4a and two bent portions. The left and right outer portions of B are wing portions 4b extending forward (obliquely forward). And the hook part 9 which is located above the lower end of the insertion part 7 and can be latched with respect to the wire mesh 1 from the mountain side is provided in the lower end of each wing part 4b.

  Here, the left and right width of the main body portion 4a is 800 mm, the left and right widths of the left and right wing portions 4b are 115 mm, the diameter of each wire 6 is 2.6 mm, and the distance between the longitudinally extending wires 6 is 86 mm (only the left and right ends) 85 mm), the vertical spacing of the laterally extending wire 6 is 35 mm (four laterally extending wires 6), and the lowermost wire 6 </ b> A at the bottom of the laterally extending wire 6 from the lower end of the insertion portion 7 ( The height to the lower end of FIG. 3 (A) is 30 mm.

  The cover means 5 covers the entire surface of the wire mesh member 4 above the insertion portion 7 from the inner side (front side) of the wire mesh member 4 and does not pass soil particles as a whole and has water retention and water permeability. It is. The cover means 5 of this example is configured as a fertilizer belt provided with a sheet-like body 10 and a fertilizer bag 11 described below.

  The sheet-like body 10 has a horizontally long rectangular sheet shape as shown in FIGS. 8A and 8B. For example, a non-woven fabric of chemical fibers such as rayon, a biodegradable material (insulator fibers, etc.) Made of a non-woven fabric and the like, thickly configured to have water permeability and water retention, and fixed to the metal mesh member 4 by a C-ring (not shown). In addition, the vertical width of the sheet-like body 10 of this example is 108 mm.

  The fertilizer bag 11 has a horizontally long thin bag shape as shown in FIGS. 8A and 8B. The fertilizer bag 11 is made of, for example, a non-woven fabric of chemical fiber, and has a greening material (for example, fertilizer, water retaining agent) outside the figure. Materials, soil improvement materials, etc.). In this example, a belt-shaped fertilizer bag 11 having two upper and lower accommodating portions 11a is disposed at the lower part of the sheet-like body 10 and integrated with the sheet-like body 10 by stapling or bonding. Moreover, in the fertilizer bag 11 of this example, between the two accommodating parts 11a, ultrasonic welding (an example of joining) is carried out. Thus, the fertilizer bag 11 is long in the center part of one cylindrical fertilizer bag. It is a member that exhibits a thin shape like a band formed by joining (such as ultrasonic welding or adhesion) in the direction. In addition, the vertical width of each fertilizer bag 11 of this example is 25 mm (50 mm in total).

  When such cover means 5 is attached to the wire mesh member 4, the attachment 2 shown in FIGS. 3 to 6 is obtained. In this example, FIG. 3 (A) is compared with FIG. As can be easily understood by using the position of 11 as a guide, the sheet-like body 10 covers the entire surface of the wire mesh member 4 above the insertion portion 7 (see FIG. 5). The sheet-like body 10 is located on the front side of the wire mesh member 4, and the fertilizer bag 11 is held on the front side of the sheet-like body 10.

  The vegetation base material 3 includes, for example, bark compost, peat moss, a topsoil seed bank, and the like. In this example, the vegetation base material 3 includes a topsoil seed bank (tops with buried seeds). In addition, you may make it mix | blend wood chips with the vegetation base material 3, for example, and may carry out resource circulation type greening.

  Next, the construction procedure of the greening method according to this embodiment will be described.

  First, after laying the wire mesh 1 on the slope N using an anchor pin or the like, the attachment 2 is placed on the wire mesh 1 (see FIGS. 1 and 2). In this installation, as shown in FIG. 1, the attachments 2 are arranged on the wire mesh 1 in a zigzag pattern, while the body 4a of the wire mesh member 4 of each attachment 2 is substantially along the contour line, and the two wings 4b ) Facing the mountain side. Then, each attachment 2 is connected to the wire mesh 1 by locking the hook portion 9 to the wire mesh 1, and the insertion portion 7 is inserted into the slope N at the same time as or before and after this connection. By simply connecting the hook portion 9 to the wire mesh 1, the wire mesh member 4 (attachment 2) is erected substantially vertically with respect to the wire mesh 1 (stands on the wire mesh 1). By inserting the insertion portion 7 into the metal mesh member 4, the metal mesh member 4 is firmly fixed to the slope N and the metal mesh 1.

  Then, the vegetation base material 3 is sprayed from the upper side of the wire mesh 1 on which the attachment 2 is installed so that a layer of about 3 to 5 cm of the vegetation base material 3 is formed on the slope N. This spraying can be performed using a spraying machine such as Aero Seeder (trade name). Here, in this example, the upper part (upper 5 cm region) of the wire mesh member 4 (attachment 2) protrudes to the upper side of the sprayed surface to be formed, and the fertilizer bag 11 is just buried with the vegetation base material 3 ( Height).

  The greening method of the present embodiment is thus completed, and the greening structure is built on the slope N.

  In this tree planting method, the attachment 2 can be firmly fixed to the wire mesh 1 by an extremely simple operation of engaging only the two hook portions 9 with the wire mesh 1 and inserting the insertion portion 7 into the slope N. it can. In particular, in this embodiment, the hook portion 9 is locked to the wire mesh 1 on the mountain side of all the insertion portions 7 and each insertion portion 7 is inserted substantially perpendicular to the slope N. Although part of the force received when 2 receives the vegetation base material 3 and the runoff sand that flows after construction works, it works in the direction to hold the insertion portion 7 in the soil of the slope N or the direction of insertion into the slope N The insertion portion 7 does not work in the direction of pulling out from the slope N, and therefore the connection state of the attachment 2 to the wire mesh 1 is held very firmly. When this greening method was actually tried, even if the hose for spraying the vegetation base material 3 hits the attachment 2, the attachment 2 did not fall down at all. Of course, if necessary, the lower part of the attachment 2 can be bound to the wire mesh 1 by an appropriate means such as a binding wire, and the connection state of the wire mesh 1 and the attachment 2 can be made stronger.

  In addition, when the insertion portion 7 is inserted too much into the slope N, that is, when the attachment 2 sinks, the lowermost wire 6A (FIG. 3 (A) shown in FIG. )) Is prevented by contacting the wire mesh 1.

  In the present greening method, at least a part of the comb-like insertion portion 7 is supported by the metal mesh 1 so that the attachment 2 can remove the vegetation base material 3 and the runaway soil flowing after construction. Even if it is in a state of being received to some extent, it is possible to more strongly prevent a part of the attachment 2 from bending and bending to the valley side due to its weight. The larger the number (location), the larger.

  If the attachment 2 is composed only of the wire mesh member 4, flying seeds (wind-spreaded seeds, bird-spreaded seeds, etc.) and soil particles (running earth and sand) will fall out. In this greening method, this wire mesh member 4 is Since the cover means 5 covers the entire surface from the inside, the flying seeds and soil particles can be securely fastened (captured) on the mountain side of the attachment 2. Therefore, it is possible to restore the local vegetation by actively using the flying seeds at the steps formed on the mountain side of the attachment 2, and the capture efficiency is good. It is possible to improve not only the speed of greening but also the certainty of greening.

  And in order to show | play such an effect more reliably, in this tree planting method, the lower end of the hook part 9 in the insertion part 7 is set so that the insertion length of the insertion part 7 into the slope N becomes 1-5 cm. The length of the distal end portion 7a (see FIG. 4) positioned below is set to 1 to 5 cm (projecting length downward with respect to the lower end of the hook portion 9). That is, in practice, the slope N may be uneven or the wire mesh 1 may float from the slope N. If the insertion portion 7 (tip portion 7a) is too short, for example, the wire mesh 1 will float from the slope N. If the insertion portion 7 does not reach the slope N or reaches the slope N, it does not reach a sufficient depth. As a result, the attachment 2 floats from the wire mesh 1 and is unstable. Easy to convert. On the other hand, if the insertion portion 7 (tip portion 7a) is too long, a large gap is easily formed between the wire mesh 1 and the cover means 5, and in this case, the runaway soil and the like will fall out of the gap and Cannot be well established. In order to avoid this, if the insertion of the insertion portion 7 is attempted deep into the slope N, the work becomes difficult and the labor is increased.

  Since the sheet-like body 10 of the attachment 2 has water permeability and water retention, there is no possibility that the root of the plant will rot due to accumulation of excess water while retaining appropriate moisture, and in addition, the fertilizer bag 11 Since the fertilizer is supplied from, the environment suitable for the growth of the captured flying seeds is prepared on the mountain side of each attachment 2. Here, if the fertilizer bag 11 is too thick, there is a concern that it will interfere with the roots that extend from the flying seeds. Therefore, it is preferable to make the fertilizer bag 11 thin (in the form of a band). It is desirable that the thickness T (see FIG. 8B) of the fertilizer bag 11 in the accommodated state be 1 cm or less. Even if a portion of the fertilizer from the fertilizer bag 11 included in each attachment 2 flows down without being supplied to the mountain side of the attachment 2, it is received by the attachment 2 below (the valley) side and grows there. Since it is supplied to the plant, most of the fertilizer in each fertilizer bag 11 is effectively used without being wasted. Therefore, it is possible to reduce the amount of fertilizer to be held in the fertilizer bag 11 and reduce the thickness of the fertilizer bag 11.

  In this tree planting method, plants that do not disturb the local ecosystem from both the greening right after construction by the topsoil seed bank (landfill seed) included in the vegetation base material 3 and the standby type greening that awaits incoming seeds. Can be grown. In addition, in the conventional tree planting method using only buried seeds, it is common to mix at least about 10% of the topsoil seed bank with the vegetation base material to be sprayed. Can be reduced to about 3%, and the reduction of the amount of topsoil seed banks that require a great deal of labor for collection is directly linked to cost reduction.

  In this greening method, the sheet-like body 10 and the fertilizer bag 11 of the cover means 5 are both formed of non-woven fabric, and these portions of the wire mesh member 4 exposed on the slope N (the portion above the insertion portion 7) Since the entire surface is covered, when the vegetation base material 3 is sprayed, the vegetation base material 3 adheres to the entire surface of the nonwoven fabric, and after construction, the entire planted structure is colored with the color of the vegetation base material 3 close to the color of the slope N. It will be dyed and can be harmonized with the landscape.

  In addition, this invention is not limited to said embodiment at all, Of course, it can change and implement variously in the range which does not deviate from the summary of this invention. For example, the following modifications can be given.

  In the embodiment described above, the left-right width W of the attachment 2 (see FIG. 3B) is 921 mm, whereas the distance H (see FIG. 1) between the attachments 2 that form the same row and are adjacent to the left and right is The distance V (see FIG. 1) between the attachments 2 that constitute the same row and are vertically adjacent to each other is also 2000 mm. However, the left and right width W of the attachment 2 and the distances H and V between the adjacent attachments 2 can be changed as appropriate, and the arrangement of the attachments 2 is not limited to a staggered pattern, and various arrangements are possible. .

  If the free ends of the left and right wings 4b are spread out and the self-handedness (opening angle α (see FIG. 3B)) is at least 90 degrees (opening angle α is 120 degrees in the illustrated example), a plurality of wire meshes Although the member 4 or the attachment 2 can be transported and stored in a compact manner, it is not limited to this. In addition, what is necessary is just to let the opening angle (alpha) be the range which does not interfere with standing of the attachment 2. FIG.

  In the above embodiment, one hook portion 9 is provided on each of the left and right wing portions 4b. However, the present invention is not limited to this, and a plurality of hook portions 9 may be provided on the left and right wing portions 4b or provided on the main body portion 4a of the wire mesh member 4. There may be. In the modification of the wire mesh member 4 (attachment 2) shown in FIGS. 9A to 9C, one hook portion 9 is formed on each of the left and right wing portions 4b, and two hook portions are formed in the central portion of the main body portion 4a. 9 is formed.

  Here, in the above embodiment, if the wire mesh member 4 erected on the wire mesh 1 laid on the slope N does not have the hook portion 9, a part of the external force applied to the wire mesh member 4, such as gravity, is generated. When the insertion part 7 is converted into a force for pulling out the slope N from the slope N, and the force exceeds a certain level, the insertion part 7 is basically pulled out from the mountain side so that the wire mesh member 4 falls. I think that. Therefore, from the viewpoint of preventing the wire mesh member 4 from falling, the position at which the hook portion 9 is locked to the wire mesh 1 is located on the mountain side as much as possible, or the insertion portion located on the most mountain side among all the insertion portions 7. 7 is preferably located as close as possible, but when the attachment 2 is installed, one or more of the hook portions 9 are locked to the wire mesh 1 at a position on the mountain side of at least one of the insertion portions 7. If it has, the effect that it becomes difficult for the wire mesh member 4 to fall to the trough side is acquired.

  Moreover, in the modification shown in FIG. 9, the hook part 9 formed in the left and right wing parts 4b of the metal mesh member 4 is a metal mesh at a position closer to the mountain side than the two hook parts 9 formed in the central part of the main body part 4a. 1 will be locked. As in this example, when two or more hook portions 9 are locked to the metal mesh 1 at positions separated from each other at least in the inclination direction of the slope N, the standing state of the metal mesh member 4 can be maintained more stably. It will be. Furthermore, in this case, each hook portion 9 may be locked to the wire mesh 1 from the mountain side, but the hook portion 9 located on the mountain side is locked to the wire mesh 1 from the mountain side, and the hook is located on the valley side. The portion 9 may be locked to the wire mesh 1 from the valley side. Conversely, the hook portion 9 positioned on the mountain side is locked to the wire mesh 1 from the valley side, and the hook portion 9 positioned on the valley side is locked to the wire mesh 1. You may make it latch from a mountain side.

  In the example shown in FIG. 9, the left-right width W of the attachment 2 (see FIG. 9A) is 919.3 mm, the left-right width of the main body 4a is 800 mm, and the left-right width of the left and right wings 4b is 113.65 mm. The opening angle α (see FIG. 9B) is 120 degrees, and the diameter of each wire 6 is 2.3 mm. Further, the distance between the longitudinally extending wires 6 is 25 mm, the distance between the horizontally extending wires 6 is 20 mm (six wires 6 extending horizontally), and the wires extending in the lateral direction from the lower end of the insertion portion 7. 6, the height to the lower end of the lowermost wire 6 </ b> A (see FIG. 9A) at the lowermost position is 30 mm. That is, in the example shown in FIG. 9, the mesh of the metal mesh member 4 is finer than that in the above embodiment.

  And when providing the two hook parts 9 in the center part of the metal-mesh member 4 like the example shown in FIG. 9, the front-end | tip (open end of the hooks) of such two hook parts 9 face each other, and two By not providing a gap between the tips, or by suppressing the size of the gap to the same extent as the diameter of one wire constituting the wire mesh 1, the wire mesh is provided between the two hook portions 9. The wire mesh member 4 can be naturally locked to the wire mesh 1 simply by passing the wire constituting 1, and the risk of the hook portion 9 being unexpectedly detached from the wire mesh 1 can be almost eliminated.

  The wire mesh member 4 only needs to be configured to be able to stand upright on the wire mesh 1 with the tips of the left and right wing portions 4b spaced apart from each other at least in the contour line direction of the slope N and directed toward the mountain side. In this case, the wire mesh member 4 has a substantially bilaterally symmetric structure, but when the wire mesh member 4 stands on the wire mesh 1, either one of the left and right wing portions 4b has a tip closer to the mountain side than the other tip. The structure may be asymmetrical, such as extending.

  Further, the wire mesh member 4 is not limited to a substantially U-shape in a top view (transverse cross-sectional view), and is configured to have, for example, a substantially V-shape, a W-shape, etc. in a top view (transverse cross-sectional view). May be. FIGS. 10A and 10B show an example of the attachment 2 that has a substantially V shape when viewed from above (transverse cross-sectional view). The attachment 2 is obtained, for example, by extending the left and right wing portions 4b of the attachment 2 shown in FIG. 9 so as to be straight with the main body portion 4a and folding it in the center of the main body portion 4a. Therefore, the attachment 2 in FIG. 10 is composed of only the left and right wing portions 4b opened at 60 degrees, does not have the main body portion 4a, and has two at the center portion of the wire mesh member 4 and at both left and right end portions. One hook portion 9 is provided.

  Although the wire mesh member 4 of the said embodiment is comprised only by the wire 6 extended longitudinally and the wire 6 extended horizontally, it is not restricted to this, Various combinations of the wire 6 are used using various wire 6 The wire mesh member 4 can be configured differently.

  The method of attaching the cover means 5 to the wire mesh member 4 is not limited to the C ring, and other binding members or the like may be used.

  In the above embodiment, the cover means 5 covers only the inner side (front side) of the wire mesh member 4, but it may also cover the outer side (rear side). For example, the sheet-like body 10 is configured in a bag shape. Then, the wire mesh member 4 may be covered. Of course, the cover means 5 may cover only the outside (rear side) of the wire mesh member 4. Further, the cover means 5 is not limited to covering only the portion above the insertion portion 7 in the wire mesh member 4, for example, extending downward to such an extent that the sheet-like body 10 covers the insertion portion 7, and the lower portion thereof By inserting a plurality of slits extending upward from the lower end so as to form a bowl shape, the lower part of the sheet-like body 10 can reach the lower part of the wire mesh 1 through the mesh of the wire mesh 1. Also good.

  The sheet-like body 10 may be provided only at a position where the fertilizer bag 11 is avoided in the wire mesh member 4. For example, the sheet-like body 10 covers only the upper part of the wire mesh member 4, and the fertilizer bag 11 is only the lower part of the wire mesh member 4. May be covered. The fertilizer bag 11 is not limited to covering only the lower part of the wire mesh member 4, but it is less wasteful and effective for greening if it is provided only in the lower part buried in the vegetation base material 3.

  The number of the accommodating parts 11a of the fertilizer bag 11 is not limited to two, and may be one or three or more. Moreover, in the said embodiment, although the lateral width of the fertilizer bag 11 (accommodating part 11a) is made to correspond with the sheet-like body 10, you may make it smaller than the sheet-like body 10, In this case, the accommodating part of the fertilizer bag 11 11a may be arranged not only in the vertical direction but also in the left and right direction, or may be interspersed.

  The fertilizer bag 11 may also be directly joined to the sheet-like body 10 by stapling or bonding as described above, but is not limited thereto, for example, a folded portion is provided at the lower portion of the sheet-like body 10, The sheet-like body 10 and the fertilizer bag 11 may be integrated by sandwiching the fertilizer bag 11 from the front and back at the folded portion and joining the folded portions by ultrasonic welding. The fertilizer bag 11 may be formed by the folded portion itself. Moreover, as a joining method used for each said joining, various means, such as ultrasonic welding, a heat seal, staple placement, adhesion | attachment, are employable.

  Further, only one of the sheet-like body 10 and the fertilizer bag 11 may be provided and the other may be used as well.

  In the above embodiment, the vegetation base material 3 is sprayed, but this spraying is not performed, and it may be completed only by installing the attachment 2 to the wire mesh 1. Even if it is a greening structure (only consisting of the wire mesh 1 and the attachment 2) obtained when spraying is not sprayed, it is effective for greening and the like by catching flying seeds.

  After installation of the attachment 2, seedlings may be planted in a protection area (mainly an area located inside the attachment 2 in the top view) formed on the mountain side of the attachment 2, so that early greening may be achieved. . In this case, if the planted seedling can absorb the nutrients in the fertilizer bag 11, more reliable greening can be expected.

  Needless to say, the above modifications may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1 Wire mesh 2 Attachment 3 Vegetation base material 4 Wire mesh member 4a Main body part 4b Wing part 5 Cover means 6 Wire material 7 Insertion part 9 Hook part 10 Sheet-like body 11 Fertilizer bag N Slope

Claims (4)

An ecosystem-friendly greening method that installs attachments for capturing flying seeds on a wire mesh covering the slope,
The attachment comprises a wire mesh member having a comb-like insertion portion made of a plurality of wire rods and projecting downward, and cover means covering the entire surface of the wire mesh member at least above the insertion portion.
The wire mesh member is configured to be able to stand upright on the wire mesh with the tips of the left and right wing portions spaced apart from each other at least in the contour line direction of the slope and both facing the mountain side, and at the lower end of the wire mesh member, In addition to the insertion part, a hook part is formed which is located above the lower end of the insertion part and can be locked to the wire mesh,
As the cover means, a sheet-like body having water permeability and water retention, and a fertilizer bag holding a greening material is provided,
The hook portion is locked to the wire mesh and the attachment is connected to the wire mesh so that the wire mesh member stands on the wire mesh with both ends of the left and right wing portions of the wire mesh member facing the mountain side. In addition, an eco-friendly greening method characterized by inserting the insertion portion into the slope.   The ecosystem-friendly greening method according to claim 1, wherein after attaching the attachment on the wire mesh, a vegetation base material is sprayed from above the wire mesh.   The ecosystem-friendly greening method according to claim 1, wherein the insertion length of the insertion portion with respect to the slope is 1 to 5 cm.   A greening structure formed on a slope by the ecosystem-friendly greening method according to any one of claims 1 to 3.

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