JP5503067B1 - Vegetation protection device, vegetation protection structure and vegetation protection method - Google Patents

Abstract

[PROBLEMS] To provide a vegetation protection device, a vegetation protection structure, and a vegetation protection method that can more reliably protect plants on a vegetation area from damage caused by wild animals (typically deer) and that can be constructed with a simpler structure. To do.
[Solution]
The vegetation protection device according to the present invention is a vegetation protection device 100 that is disposed on the vegetation region G and protects the vegetation plant P, and includes a vegetation protection sheet 101 having predetermined flexibility, elasticity, and light transmittance. A fixing device 102 for fixing the vegetation protection sheet 101 on the vegetation region R, and the vegetation protection sheet 101 is fixed on the vegetation region R in a state of being bent in an arch shape, and the vegetation A vegetation protection space R for protecting the vegetation plant P is formed between the protection sheet 101 and the vegetation region G.
[Selection] Figure 1

Description

  The present invention relates to a vegetation protection device, a vegetation protection structure, and a vegetation protection method for protecting a vegetation area such as a slope or a flat land.

  In order to prevent the destruction of nature and maintain the landscape, in order to vegetate plants in areas such as slopes and flatlands, it is common to install vegetation areas for planting. However, in places where the vegetation area is located on the slope of a road that goes deep in the mountains and wild plants such as deer appear, the damage caused by wild animals is frequently eaten by the plants vegetated in the vegetation area. Is going on. In other words, when wild animals invade the vegetation area, eat and destroy the vegetation vegetation that has grown, and trampling it, causing the vegetation to wither and causing poor growth, so that sufficient vegetation can be produced in the vegetation area. There was a problem of disappearing.

  Conventionally, in order to prevent such damage caused by wild animals, a method of using repellents for wild animals has been proposed. For example, in patent document 1, it is comprised so that a vegetation base material or the vegetation bag which accommodated the vegetation base material may have a repelling function. However, it is very likely that the repellent material will be washed away by wind and rain, or will be neutralized by the vegetation plant itself, so it seems difficult to maintain this repellent function for a long time .

  On the other hand, Patent Document 2 discloses an apparatus (A) for preventing damage caused by herbivores. The anti-corrosion device (A) covers the anti-vegetation vegetation material protection area (1) with a net (2), and the net (2) is floated from the protection area (1) via a spacer (3). Is arranged in. That is, by covering the vegetation plant with the mesh body (2), wild animals such as deer are prevented from eating the plant from above the mesh body (2).

  Patent Document 3 discloses a protection member (20) that forms a vegetation protection space (R) for protecting a vegetation plant (P). The protective member (20) is composed of at least two rigid fence-like or lattice-like protective panels (21, 21) fixed on the vegetation zone (10) with a fixture such as a pile, and the vegetation zone (10). By forming a vegetation protection space (R) between the protective panel (21) and the protection panel (21), the vegetation plants in the vegetation protection space (R) are protected from animal damage.

JP 2007-20459 A JP 2004-73192 A JP 2012-95543 A

  In the technical field related to vegetation protection, plants can be protected from beast damage caused by wild animals (typically deer) such as deer, monkeys, and birds, and vegetation protection devices can be cheaper with a simpler structure. There is a need to provide a method for protecting plants in vegetation areas.

  However, in the anti-corrosion device of Patent Document 2, in addition to the mesh material, a spacer having a size or quantity corresponding to the area of the mesh material must be arranged and fixed to the ground with a pile. Therefore, when protecting a vegetation area over a wide area, a large-scale or a large number of spacers are required to construct an anti-corrosion device, and there is a problem that the cost increases. Furthermore, during construction, since a spacer must be arranged over the vegetation area and one mesh body must be installed on the spacer with less looseness so as to cover the entire vegetation area, In addition, a worker who holds both ends of the net so as not to loosen the net is required, and installation is difficult with a small number of people. In particular, when a vegetation protection area is formed on a steeply inclined surface such as a slope, the larger the vegetation area, the more difficult it is to stretch the mesh.

  Moreover, in the protective member of patent document 3, compared with the anti-corrosion apparatus of patent document 2, although the point of structural simplicity, construction ease, and the vegetation protection effect is improved significantly, protection panels are connected by a connection part. Since the connection form is adopted, it is difficult to say that the structure of the protective member itself is sufficiently simple, and it has been a problem to further simplify the structure.

  The present invention has been made to solve the above-described problems, and its purpose is to more reliably protect plants on the vegetation area from the damage caused by wild animals (typically, deer) and a simpler configuration. A vegetation protection device, a vegetation protection structure, and a vegetation protection method. The “vegetation region” of the present invention is a region where plants are vegetated, and is a region where vegetation plants should be protected from damage caused by wild animals or birds. That is, the “vegetation area” is a broad concept including a slope, a field, a countryside, a vegetation mat, and the like. Similarly, “vegetation plant” is a broad concept including plants and flowers for slope planting, edible plants such as vegetables and grains.

The vegetation protection device according to claim 1 is a vegetation protection device for protecting a vegetation plant that is disposed on a vegetation region, and is a net-like body having predetermined flexibility, elasticity, and translucency. A vegetation protection sheet and a fixing tool for fixing the vegetation protection sheet on the vegetation area, and the vegetation protection sheet is fixed on the vegetation area in an arched state, and the vegetation protection sheet and the vegetation area A vegetation protection space for protecting vegetation plants is formed between the two.

(Delete)

A vegetation protection device according to a second aspect is the vegetation protection device according to the first aspect , wherein the net-like body is integrally formed of a synthetic resin.

The vegetation protection device according to claim 3 is the vegetation protection device according to claim 1 or 2 , wherein the maximum height h of the vegetation protection space is 300 mm to 400 mm.

The vegetation protection structure according to claim 4 is a vegetation protection structure that protects a vegetation plant in a vegetation region on a slope, wherein one or more vegetation protection devices according to any one of claims 1 to 3 are provided. It is installed on the sloped vegetation area.

The method for protecting a vegetation plant in a vegetation area according to claim 5 includes a vegetation protection sheet that is a net-like body having predetermined flexibility, elasticity, and translucency, and is bent in an arch shape. The vegetation protection space for protecting a vegetation plant is formed between a vegetation protection sheet and a vegetation area | region, fixing with a fixing tool.

  According to the first aspect of the present invention, the vegetation protection sheet having predetermined flexibility, elasticity, and light transmittance is fixed on the vegetation region in a state where the vegetation protection sheet is bent in an arch shape. It is possible to form a vegetation protection space for protecting vegetation plants with the area. The vegetation protection sheet bent in an arch shape has a predetermined elasticity (restorability) in order to maintain the curved and overhanging posture. Due to this elasticity, the vegetation protection sheet takes a curved posture in a tensioned state, and the vegetation protection sheet and the vegetation region surface (ground) are separated from each other to maintain the vegetation protection space. As a result, it is possible to stably suppress wild animals from eating or stepping on vegetation plants at the roots or shoots of vegetation. And since the vegetation protection apparatus of this invention forms a vegetation protection space by bending one vegetation protection sheet, it can be comprised only with a vegetation protection sheet and a fixture, and it is very simple compared with the past. And has a structure that can be manufactured at low cost. Therefore, the present invention provides a vegetation protection device that can more reliably protect vegetation plants on a vegetation region from damage caused by wild animals and that can be constructed with a simpler structure.

Furthermore, according to invention of Claim 1 , in addition to the said effect, when the vegetation protection sheet is a net-like body having a plurality of meshes, it has both high light permeability and air permeability and is protected. Promote the growth of vegetation plants in the state.

According to invention of Claim 2 , in addition to the effect of the vegetation protection apparatus of Claim 1 , it can manufacture a vegetation protection sheet easily and cheaply because a mesh body can be integrally molded with a synthetic resin. it can. Furthermore, since synthetic resins are generally lighter than metal materials, the portability of the vegetation protection device and the installation workability of the vegetation protection device are improved.

According to the invention described in claim 3 , in addition to the effect of the vegetation protection device of claim 1 or 2 , the vegetation protection sheet has an arch shape so that the maximum height h of the vegetation protection space is 300 mm to 400 mm. By arranging, the posture of the vegetation protection sheet can be maintained more stably, and the area of the vegetation protection region can be efficiently increased to protect the vegetation plants from wild animals more effectively.

According to invention of Claim 4 , the effect of the vegetation protection apparatus in any one of Claim 1 to 3 can be exhibited as a vegetation protection structure on a slope. Therefore, this invention provides the vegetation protection structure which can be constructed | assembled with a simpler structure while protecting the vegetation plant on a vegetation area more reliably from the food damage from a wild animal. Furthermore, one or a plurality of vegetation protection devices can be installed in the vegetation region by bending the vegetation protection sheet of the vegetation protection device and fixing the vegetation protection sheet on the vegetation region with a fixture. Therefore, the vegetation protection structure can be easily and quickly constructed on the slope.

According to the invention described in claim 5 , the vegetation protection sheet and the vegetation region are fixed by fixing the vegetation protection sheet having predetermined flexibility, elasticity, and light transmittance on the vegetation region in a state of being bent in an arch shape. It is possible to form a vegetation protection space for protecting vegetation plants between the two. The vegetation protection sheet bent in an arch shape has a predetermined elasticity (restorability) in order to maintain the curved and overhanging posture. Due to this elasticity, the vegetation protection sheet takes a curved posture in a tensioned state, and the vegetation protection sheet and the vegetation region surface (ground) are separated from each other to maintain the vegetation protection space. As a result, it is possible to stably suppress wild animals from eating or stepping on vegetation plants at the roots or shoots of vegetation. And the method of this invention can form a vegetation protection space easily and rapidly by the simple process of bending and fixing one vegetation protection sheet. Furthermore, this method requires only a vegetation protection sheet and a fixture, and can perform vegetation protection at a much simpler and lower cost than the conventional method. Therefore, this invention provides the method of protecting a vegetation in a simpler form while protecting the vegetation plant on a vegetation area more reliably from the feeding damage from a wild animal. Furthermore, since the vegetation protection sheet is a net-like body having a plurality of meshes, the vegetation protection sheet has high light permeability and ventilation, and promotes the growth of vegetation plants in a protected state.

The perspective view of the vegetation protection apparatus of one Embodiment of this invention. It is the vegetation protection apparatus of FIG. 1, Comprising: The side view of the state installed in the vegetation area | region. It is each member of the vegetation protection apparatus of FIG. 1, (a) a vegetation protection sheet, (b) the elements on larger scale, and (c) a fixture. The schematic diagram which shows the process of installing the vegetation protection apparatus of FIG. 1 on a slope. The perspective view of the vegetation protection structure of one Embodiment of this invention. The side view of the vegetation protection structure of FIG. The figure which shows the test result (photograph) of the vegetation protection apparatus of one Embodiment of this invention. (A) The elements A, B, B, and (c) of FIG. 7 are partially enlarged views. The perspective view of the vegetation protection structure of the modification of this invention. The perspective view of the vegetation protection structure of the modification of this invention. The side view of the vegetation protection structure of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the shape of each figure referred in the following description is a conceptual diagram or a schematic diagram for explaining a suitable shape dimension, and a dimension ratio etc. do not necessarily correspond with an actual dimension ratio. That is, the present invention is not limited to the dimensional ratio in the drawings.

  FIG. 1 is a perspective view of a vegetation protection device 100 according to an embodiment of the present invention. As shown in FIG. 1, the vegetation protection device 100 includes a vegetation protection sheet 101 having predetermined flexibility, elasticity, and translucency, and a plurality of (this embodiment) for fixing the vegetation protection sheet 101 on the vegetation region G. 4) in the form. In the installed state of the vegetation protection device 100, the vegetation protection sheet 101 is bent in an arch shape, and its four corners are fixed on the vegetation region G by the fixing tool 102. That is, the vegetation protection device 100 is disposed on the vegetation region G so that the lateral edge of the vegetation protection sheet 101 is grounded to the vegetation region G and the vertical width direction is curved. The “flexibility” referred to here is a property of bending so that it does not break even when force is applied. On the other hand, the term “elasticity” as used herein refers to a property that a bent shape tries to restore the original shape.

  FIG. 2 is a side view showing a state where one vegetation protection device 100 is fixed on the vegetation region G. FIG. As shown in FIG. 2, the fixing metal fitting 102 is embedded in the ground, and the vegetation protection sheet 101 is fixed to the vegetation region G in a state of being convexly curved with respect to the ground surface of the vegetation region G. A substantially semi-cylindrical vegetation protection space R for protecting the vegetation plant P is formed between the vegetation protection sheet 101 and the vegetation region G. Due to the elasticity of the vegetation protection sheet 101, the vegetation protection sheet 101 is bent in a tight state and maintains its posture. When a wild animal such as a deer rides on the vegetation protection sheet 101, the vegetation protection sheet 101 temporarily bends downward, but due to its elasticity, when the wild animal leaves, it is restored to its original arch shape. In addition, the vegetation protection device 100 has a repulsive force (elasticity) such that even if a deer (particularly sika deer) rides on the vegetation protection sheet 101, the lower surface of the vegetation protection sheet 101 does not contact the ground. Preferably it is. In this case, even if a deer gets on, the vegetation protection sheet 101 bends without breaking, and the vegetation protection sheet 101 is not completely crushed, so that the vegetation protection space R is secured at least near the ground. The root can be protected. In the vegetation protection space R, the vegetation plant P is prosperous as shown in the drawing because the vegetation plant P is protected from the damage caused by wild animals (typically deer).

For example, the vegetation protection device 100 is configured to have a horizontal width of about 1000 mm, a vertical width of about 500 mm, and a maximum height of about 350 mm in the installed state. In this case, the vegetation protection space R has a covering area of about 0.5 m ² and a maximum height h = about 350 mm (here, the thickness of the vegetation protection sheet 101 is ignored).

  The maximum height h of the vegetation protection space R indicates the maximum distance between the vegetation region G and the lower surface of the vegetation protection sheet 101, and can be adjusted by changing the degree of bending of the vegetation protection sheet 101. . That is, the maximum height h increases as the degree of bending of the vegetation protection sheet 101 increases, but in inverse proportion to this, the vertical width of the vegetation protection device 100 decreases and the coverage area by the vegetation protection sheet 101 narrows. And it is preferable that the maximum height h of the vegetation protection space R is 100 mm to 1000 mm. When the height h is 100 mm or less, there is a possibility that wild animals may damage the roots of the vegetation plants P or the young vegetation plants P, and the protective effect of the vegetation plants P is halved. On the other hand, when the height h is 1000 mm or more, it tends to be affected by strong winds outdoors, and its installation tends to be unstable. In other words, at a height h in this range, the installation posture of the vegetation protection sheet 101 can be stably maintained outdoors, and the vegetation plant P can be effectively protected from the damage and trampling of wild animals. The maximum height h of the vegetation protection space R is more preferably in the range of 200 mm to 500 mm. At a height h in this range, it is possible to effectively save the material cost of the vegetation protection device 100 by securing a wide coverage area of the vegetation protection sheet 101 while achieving stable protection of the vegetation plant P. . Furthermore, the optimal range of the maximum height h of the vegetation protection space R is 300 mm to 400 mm. In this range, the relationship between the protection effect and the installation cost is optimized, and vegetation protection, installation stability, and cost reduction can be realized at a high level.

  Next, with reference to FIG. 3, the vegetation protection sheet 101 and the fixture 102 which comprise the vegetation protection apparatus 100 are demonstrated in detail.

  3A and 3B are a plan view and a partially enlarged view of the vegetation protection sheet 101. FIG. The vegetation protection sheet 101 is a thin sheet made of synthetic resin made of a net having a plurality of meshes 101a, and has a long side in the horizontal width and a short side in the vertical width. The vegetation protection sheet 101 has predetermined flexibility, elasticity, and light transmission. Since the vegetation protection sheet 101 has moderate elasticity in addition to flexibility, the vegetation region G is bent from the flat shape of FIG. 3A to the arch shape of FIGS. 1 and 2 without breaking. Can be stretched on top. Moreover, the vegetation protection sheet 101 provides sufficient light permeability and ventilation for the vegetation plant P to be protected due to its mesh structure.

  As shown in FIG.3 (b), the mesh | network 101a of the said vegetation protection sheet 101 is formed in what is called a tortoiseshell shape comprised so that three sets of opposing sides may become substantially parallel. Here, the distance between the opposing sides is defined as w1 and w2 (<w1). In this embodiment, w1 = about 80 mm and w2 = about 50 mm. The size of the mesh 101a can be arbitrarily set by those skilled in the art, but it is preferable that the size of the mesh 101a does not allow the deer's mouth to pass. Moreover, the diameter of the wire which comprises this mesh | network 101a is about 4 mm-5 mm. That is, the vegetation protection sheet 101 is formed with a thickness of about 4 mm to 5 mm. In addition, the bending ease and repulsive force of the vegetation protection sheet 101 can be adjusted by increasing / decreasing the diameter of the wire rod of the mesh 101a.

  The vegetation protection sheet 101 is integrally formed of a hard synthetic resin. That is, since the vegetation protection sheet 101 is formed as a so-called “non-knitted net” integrally formed of synthetic resin, it has higher strength and durability than a net formed by knitting a wire. Such a net is called a Netron (registered trademark) sheet. In this embodiment, high-density polyethylene (HDPE) excellent in rigidity and workability is used as the synthetic resin. However, the present invention is not limited to this, and those skilled in the art can arbitrarily select other synthetic resins having flexibility and elasticity such as polypropylene, polycarbonate, and ABS resin. Or if a vegetation protection sheet has flexibility and elasticity, it is also possible to use hard rubber, a metal (wire net), etc.

  In this embodiment, the vegetation protection sheet 101 employs a Netron (registered trademark) sheet made of high-density polyethylene having a width of about 1000 mm, a length of about 700 mm, and a thickness of about 4 to 5 mm as dimensions in a flat state. In the present embodiment, when the vegetation protection device 100 is installed, the lateral edge (long side) of the vegetation protection sheet 101 is grounded, and the vertical width (short side) of the vegetation protection sheet 101 is about 700 mm after bending. To be bent to about 500 mm. However, the vegetation protection device and the vegetation protection sheet of the present invention are not limited to the above dimensions, and those skilled in the art can arbitrarily select the dimensions and shapes according to the situation such as the area of the vegetation region G. Needless to say.

  FIG. 3C is a schematic view of the fixture 102. The fixing means 102 is a J-shaped steel pile, and includes a long shaft portion 102a and a short shaft portion 102b having sharp tips, and the long shaft portion 102a and the short shaft portion 102b are connected by a connecting portion 102c. Yes. The long shaft portion 102a and the short shaft portion 102b are separated from each other so that the wire constituting the mesh 101a of the vegetation protection sheet 101 can be sandwiched therebetween. As shown in FIG. 1 and FIG. 2, after the wire rod of the mesh 101a is disposed between the long shaft portion 102a and the short shaft portion 102b, the tips of the long shaft portion 102a and the short shaft portion 102b are driven into the vegetation region G. Thereby, the edge of the vegetation protection sheet 101 can be reliably fixed to the vegetation region G. However, the fixing tool is not limited to the above J-shaped steel pile, and various fixing means can be used as long as a person skilled in the art can think as long as the vegetation protection sheet can be fixed to the vegetation region G. .

  Next, with reference to FIG. 4, the process which installs the vegetation protection apparatus 100 in the vegetation area | region G on a slope is demonstrated.

  First, on the slope, a predetermined vegetation region G in which seeds, seedlings, or turf grass of the vegetation plant P are prepared is selected, and the vegetation protection sheet 101 is disposed thereon. In this embodiment, since the vegetation protection device 100 includes only the vegetation protection sheet 101 and the fixture 102, and the vegetation protection sheet 101 is formed of a lightweight synthetic resin (high-density polyethylene), the operator is legal. The vegetation protection device 100 can be easily transported to a predetermined position on the surface. Next, as shown in FIG. 4A, the lateral edge of the vegetation protection sheet 101 is fixed to the slope (vegetation region G) with two fixing tools 102. Subsequently, in a state where the edge of the vegetation protection sheet 101 is fixed, the vertical direction is bent (flexibly deformed) so that the vegetation protection sheet 101 is raised with respect to the ground with the fixed side as an axis. As described above, the maximum height h and the covering area of the vegetation protection space R are determined by adjusting the degree of bending. After the degree of bending is determined, the side facing the fixed side is fixed to the vegetation region G by the two fixing tools 102 while maintaining the posture of the vegetation protection sheet 101. As a result, the vegetation protection device 100 can be installed in the vegetation region G on the slope. That is, the method of this embodiment considers the installation difficulty on a slope, and the installation method consists of the above-mentioned simple process. And the vegetation protection structure 10 which protects the wide vegetation area | region G like FIG. 5 can be constructed | assembled easily and rapidly on a slope by repeating this process and installing the several vegetation protection apparatus 100. FIG. . In addition, in this embodiment, although the vegetation protection apparatus 100 was installed on the vegetation area | region G by which the seeds etc. were prepared previously, by spraying a seed on the vegetation area | region G after installing one or several vegetation protection apparatuses 100, The vegetation protection structure 10 may be constructed. That is, the vegetation region G is a concept including a region where a plant is to be vegetated and where a seed or the like is not previously sown.

  5 and 6 are a perspective view and a side view of the vegetation protection structure 10 that protects a wide range of vegetation regions G by installing a plurality of vegetation protection devices 100 on the slope. The quantity of the vegetation protection device 100 is determined according to the relationship between the area of the vegetation region G and the area of the vegetation protection space R formed by the vegetation protection device 100. In this vegetation protection structure 10, the lateral width of each vegetation protection sheet 101 is fixed by the fixing bracket 102 along the contour direction of the slope (direction perpendicular to the slope direction), and along the slope direction of the slope, The vertical width of the vegetation protection sheet 101 is arranged. That is, the vegetation protection structure 10 connects the vegetation protection spaces R formed by the plurality of vegetation protection devices 100 along the contours of the slope, and has a plurality of rows (four rows in this embodiment) on the slope. It forms a vegetation protection space. That is, according to the area of the vegetation region G to be protected on the slope, the vegetation region G having a desired area is determined by determining the row of the vegetation protection device 100 and the number of the vegetation protection devices 100 constituting the row. Protect. In addition, although not shown in figure, in order to help the growth of the vegetation plant P, you may arrange | position a streak-like fertilizer bag in the space | gap between vegetation protection apparatuses 100 or the inner side of the vegetation protection apparatus 100 as needed.

(test)
In order to demonstrate the protective effect with respect to the vegetation plant P of the vegetation protection apparatus 100 and the vegetation protection structure 10 of this embodiment, it tested on the slope of the forest road of Kamiishitsu-cho, Gifu Prefecture. In the area where the test was conducted, sika deer and the like live as wild animals. And as a test method, the predetermined test area | region was defined on the slope of the forest road, and the vegetation mat containing the seed of the vegetation plant P was laid in the whole test area of the slope. This vegetation mat has a plurality of vegetation bags provided on a net, and a vegetation base material mixed with seeds of vegetation plants P (turf, wild grass, etc.), fertilizer and vegetation soil is inserted into the vegetation bags. Has been. And the whole test area | region was divided into three area | regions of slope area A, B, and C, and the growth state of the vegetation plant P in one month progress in these slope areas A, B, and C was observed. As a demonstration of the operational effects of the embodiment of the present invention, the slope area A is obtained by forming a plurality of vegetation protection devices 100 (vegetation protection structures 10) on the vegetation area G. Further, as a comparison object, the slope region B is a protective member made of a rigid grid-like protective panel of Patent Document 3 on a vegetation mat on the slope (see FIG. 7 of JP 2012-95543 A). Is installed. In the slope area B, a vegetation protection space having a triangular cross section in the protection panel is formed to extend along the slope direction of the slope. As another comparison object, the slope area C is a vegetation mat exposed without installing any vegetation protection device or the like on the vegetation area.

  7 and 8 are photographs showing the growth state of the sloped vegetation plant P divided by the regions A, B, and C as a result of the test. As described above, the slope area A shows the test result of the vegetation protection apparatus 100 (vegetation protection structure 10) of the present embodiment, and the slope areas B and C are installed with a protective member as a comparative example and without installation. The test result of a state is shown. In the area A, the ratio of the dark color (vegetation plant P) in the entire vegetation area is significantly larger than the ratio of the light color (vegetation mat surface on the slope), and it can be seen that the vegetation plant P grows well. . In the area B, the ratio of the entire dark color and light color is the same, or the dark color is slightly less. That is, it can be seen that the region B is partially damaged by wild animals. And in the area | region C, most vegetation plants P are eaten by the wild animal, and the light color occupies most of the whole. FIGS. 8A to 8C are partial enlarged views of each of the slope regions A to C, and show the overgrowth of the vegetation plant P in more detail. Referring to FIG. 8A, in the slope area A, the vegetation plant P in the vegetation protection space R of the vegetation protection device 100 is hardly damaged by wild animals, and the slope area B (FIG. 8 ( Compared with b)) and C (FIG. 8 (c)), it can be seen that the vegetation plant P grows densely. That is, as obvious from FIGS. 7 and 8, the overgrowth of the vegetation plant P in the slope area A where the vegetation protection device 100 (vegetation protection structure 10) of the present embodiment is installed is that of the slope areas B and C. It was proved that the vegetation protection effect was more remarkable than the conventional one.

  Consider the results of this test. In this vegetation protection structure 10, only the vegetation plant P extending outside the vegetation protection space R (above the vegetation protection sheet 101) can eat the deer D approaching the vegetation region G. In addition, since the vegetation protection sheet 101 forming the vegetation protection space R has some elasticity, the elasticity acts on the deer D on which the vegetation protection sheet 101 is placed. Thus, the vegetation protection sheet 101 gives the deer D a feeling of strangeness. As a result, it is considered that the vegetation protection device 100 and the vegetation protection structure 10 exhibit some repelling effect on the deer D.

  Hereinafter, the effect of the vegetation protection apparatus 100, the vegetation protection structure 10, and the vegetation protection method of one embodiment of the present invention will be described.

  According to the vegetation protection device 100, the vegetation protection structure 10, and the vegetation protection method of one embodiment of the present invention, the vegetation protection sheet 101 having predetermined flexibility, elasticity, and light transmittance is bent in an arch shape. By being fixed on the area G, it is possible to form a vegetation protection space R for protecting the vegetation plant P between the vegetation protection sheet 101 and the vegetation area G. The vegetation protection sheet 101 bent in an arch shape has a predetermined elasticity (restorability) so as to maintain a posture that curves in a substantially semicircular shape and projects upward. Due to this elasticity, the vegetation protection sheet 101 takes a curved posture and the vegetation protection sheet 101 and the vegetation region G surface (ground) are separated to maintain the vegetation protection space R. As a result, it is possible to stably suppress wild animals (deer D) from eating or stepping on the roots of the vegetation plant P or the vegetation plant P in a shoot state. And since the vegetation protection apparatus 100 forms the vegetation protection space R by bending one sheet of the vegetation protection sheet 101, it can be configured with only the vegetation protection sheet 101 and the fixture 102. It has a structure that is very simple and can be manufactured at low cost. Therefore, the vegetation protection device 100, the vegetation protection structure 10 and the vegetation protection method of one embodiment more reliably protect the vegetation plant P on the vegetation region G from the damage caused by wild animals (deer D), and a simpler structure. This makes it possible to carry out the protection of the vegetation plant P easily and quickly.

  As described above, the vegetation protection device 100 and the vegetation protection structure 10 according to an embodiment of the present invention have been described. However, the present invention is not limited to the above-described embodiment. Hereinafter, modifications of the present invention will be described.

(Modification 1)
In the vegetation protection structure 10 of one embodiment, the vegetation protection space R of the vegetation protection device 100 is arranged so as to be connected along a direction (contour line) orthogonal to the slope direction of the slope, but the vegetation protection structure of the present invention. Is not limited to this arrangement. For example, like the vegetation protection structure 20 in FIG. 9, the long vegetation protection devices 200 may be arranged along the contour line so that the vegetation protection space R extends in the inclination direction. It is estimated that the vegetation protection structure 20 can also exhibit the same effects as the vegetation protection structure 10. Alternatively, a plurality of vegetation protection devices may be arranged in an inclined state with respect to the tilt direction and the contour line direction, and each vegetation protection device may be arranged in a random direction.

(Modification 2)
In the vegetation protection structure 10 of one embodiment, each of the plurality of vegetation protection devices 100 is bent and installed only once, but the vegetation protection structure of the present invention is not limited to this arrangement form. For example, FIGS. 10 and 11 are a perspective view and a side view of the vegetation protection structure 30 and the vegetation protection device 300, respectively. In this vegetation protection structure 30, one vegetation protection sheet 301 extends in the inclination direction a plurality of times along the slope direction so that a plurality of arch-shaped convex portions are continuously formed in the inclination direction. It is bent, and each fixing tool 302 fixes the vegetation protection sheet 301 to the vegetation region G at each bent end. That is, in this modification, one vegetation protection sheet 301 extending from the upper end to the lower end of the vegetation region G on the slope forms a plurality of vegetation protection spaces R. That is, the entire vegetation region G on the slope is covered with one large vegetation protection sheet 301. A plurality of the vegetation protection sheets 301 can be arranged side by side in the contour line direction of the slope, and a vegetation region having a wider area can be protected.

(Modification 3)
Although the vegetation protection sheet 101 of the vegetation protection apparatus 100 according to one embodiment is configured by a net-like body composed of a turtle shell-shaped mesh, the present invention is not limited thereto. That is, the vegetation protection sheet of the present invention only needs to have at least flexibility, elasticity, and translucency, and the material and shape thereof can be arbitrarily selected. For example, a fence-like or lattice-like mesh pattern may be employed instead of the turtle shell-shaped mesh. Or as a vegetation protection sheet, you may employ | adopt the thin plate made from a synthetic resin etc. which pierced several large and small light transmission holes. Or you may employ | adopt a metal plate or a metal wire as a material of a vegetation protection sheet instead of a synthetic resin. That is, those skilled in the art can change the design and shape of the vegetation protection sheet as appropriate.

  In addition, this invention is not limited to the several Example mentioned above, As long as it belongs to the technical scope of this invention, it can implement with a various aspect.

DESCRIPTION OF SYMBOLS 10 Vegetation protection structure 100 Vegetation protection apparatus 101 Vegetation protection sheet 101a Mesh 102 Fixture 20 Vegetation protection structure (modification 1)
200 Vegetation protection device (Modification 1)
30 Vegetation protection structure (Modification 2)
300 Vegetation protection device (Modification 2)
P Vegetation plant G Vegetation area R Vegetation protection space h Height of vegetation protection space

Claims (5)

A vegetation protection device arranged on the vegetation area for protecting vegetation plants,
A vegetation protection sheet that is a net-like body having predetermined flexibility, elasticity, and translucency;
A fixing tool for fixing the vegetation protection sheet on the vegetation region,
The vegetation protection sheet is fixed on the vegetation region in a state of being bent in an arch shape, and a vegetation protection space for protecting the vegetation plant is formed between the vegetation protection sheet and the vegetation region. Feature vegetation protection device. The vegetation protection device according to claim 1 , wherein the net-like body is integrally formed of a synthetic resin. The vegetation protection device according to claim 1 or 2 , wherein the maximum height h of the vegetation protection space is 300 mm to 400 mm. A vegetation protection structure for protecting vegetation plants in a vegetation area on a slope, wherein one or more vegetation protection devices according to any one of claims 1 to 3 are installed on the vegetation area on the slope. A vegetation protection structure characterized by A vegetation protection sheet that is a net-like body having predetermined flexibility, elasticity, and light transmittance is fixed to a vegetation region with a fixing tool in a bent state in an arch shape, and the vegetation protection sheet, the vegetation region, A method for protecting a vegetation plant, comprising forming a vegetation protection space for protecting the vegetation plant in between.