JP5981062B1 - Vegetation mat and slope greening method - Google Patents

Abstract

The present invention provides a vegetation mat capable of more efficiently greening soil with natural vegetation plants that inhabit the land. A vegetation mat 100 laid on the surface of a soil to be greened with a natural vegetation plant has a first accommodation containing a locally generated soil 106 containing a buried seed 111 corresponding to the natural environment of the soil P to be greened. Section 102 and a second storage section 103 that stores artificial soil 107 at a position different from that of the first storage section 102, and includes a locally generated soil before the second storage section 103 that includes the artificial soil. The natural vegetation plant P germinates and grows from the 1 accommodation part 102. [Selection] Figure 1

Description

  The present invention relates to a vegetation mat for planting a slope, a slope vegetation structure, and a slope planting method.

  On the construction side such as various slopes, the greening is actively carried out to prevent the soil from being washed away along with the beautification of the slopes. As a recent trend, it is important to protect biodiversity in the natural environment of each land or region. That is, in addition to the purpose of preventing sloped surface and surface sediment loss for construction purposes, it is simultaneously required to protect the vegetation environment at the construction site. For example, it is not preferable from the viewpoint of environmental protection if the construction surface is greened by including species of foreign plants such as turf in artificial soil, etc., because the natural environment changes due to the growth of the foreign species. Therefore, when greening the slope in each region, it is required to green the slope using a natural vegetation plant originally inhabiting the land (or region), not an exotic plant. Various attempts have been made to green the soil with native natural vegetation plants without using exotic plants.

  For example, in the vegetation mat for capturing scattered seeds of Patent Document 1, a mat substrate (11) made of natural fibers such as jute, cotton, or pulp, and an installation surface (20) having an inner wall surface (12a) as a slope (20). 21) A large number of capture openings (12) that rise up with respect to 21) are formed, a reinforcing net (13) is integrated with the front surface or back surface of the mat base material (11), and the back surface of the mat base material (11). A runaway prevention sheet (14) is integrated on the side. When each capture opening (12) is open on the slope (20), some of the scattered seed (30) will enter or be captured within the capture opening (12). That is, the vegetation mat (10) does not have seeds (30) of vegetation plants from the beginning, and grows in the vicinity of the seeds (30) scattered from the outside after the construction, that is, the construction site. Capture seeds (30) of the plant. As a result, natural vegetation plants can be used effectively as vegetation plants, and the use of foreign plants can be stopped. In addition, the code | symbol of patent document 1 was shown in ().

Japanese Patent No. 4776740

  However, in the greening method using the vegetation mat of Patent Document 1, in the greening of the construction surface, it is necessary to wait for the arrival of the seeds of the native plant after laying. Therefore, it takes some time for natural vegetation plants to germinate and root. And since the seed which came in this way tends to flow out of a construction surface by rain especially when a construction surface is a slope, it is difficult to fix a natural vegetation plant stably. In other words, the conventional method has a problem that it takes a lot of time to green the construction surface. On the other hand, in order to shorten the time required for greening, it has been proposed to spread locally generated soil collected from the land (or region) on the construction surface. However, the use of locally generated soil is limited because a large amount of locally generated soil leads to environmental destruction. Therefore, it was practically difficult to lay precious locally generated soil on all construction surfaces, and it was difficult to quickly green the construction surfaces using only natural vegetation plants.

  The present invention has been made to solve the above-mentioned drawbacks, and its purpose is to provide a vegetation mat and a slope that can more efficiently green the soil with natural vegetation plants that inhabit the land. To provide a greening method.

The vegetation mat according to claim 1 is a vegetation mat laid on soil to be greened with natural vegetation plants,
A first containing portion containing locally generated soil containing buried seeds corresponding to the natural environment of the soil to be green;
A second housing part containing artificial soil at a position different from the first housing part,
The first and second storage portions are configured from a net-like long cylindrical body extending in the longitudinal direction, and configured to hold a vegetation bag that stores the locally generated soil or the artificial soil,
The long cylindrical body is a combination of a rough portion with a coarse eye and a dense portion with a fine eye, and the rough portion is in a width direction orthogonal to the longitudinal direction of the long tubular body in a plan view of the vegetation mat. It is formed biased to one end side,
When the vegetation mat is laid on a slope, it can be laid so that the rough portion is located on the slope side of the slope and the dense portion is located on the slope side of the slope,
A natural vegetation plant germinates and grows from the first housing part containing the locally generated soil before the second housing part containing the artificial soil.

The slope greening method according to claim 2 is a slope greening method for greening a slope with a natural vegetation plant,
Collecting locally generated soil containing buried seeds from the natural environment corresponding to the soil to be greened;
Forming a first region in which the locally generated soil is disposed on a part of the slope;
Before and after the step of forming the first region, forming a second region in which artificial soil is disposed at a position different from the first region on a part of the slope,
Further comprising the step of laying a vegetation mat comprising a first storage portion for storing the locally generated soil and a second storage portion for storing the artificial soil,
By accommodating the locally generated soil in the first accommodating portion, the first region is formed, and by accommodating the artificial soil in the second accommodating portion, the second region is formed,
The first and second accommodating portions are configured from a net-like long cylindrical body extending in the longitudinal direction, and configured to hold a water-degradable or biodegradable vegetation bag,
The long cylindrical body is a combination of a rough portion with a coarse eye and a dense portion with a fine eye, and the rough portion is in a width direction orthogonal to the longitudinal direction of the long tubular body in a plan view of the vegetation mat. It is formed biased to one end side,
Laying the vegetation mat on the slope so that the rough portion is located on the slope side and the dense portion is located on the slope side,
A vegetation plant germinates and grows from the first region prior to the second region.

Slope greening method according to claim 3 is the method according to claim 2, the lower side of the first region, further comprising the step of providing a blocking member for blocking the local soil generated Features.

  According to invention of Claim 1, a vegetation mat is equipped with the 1st accommodating part which accommodated the local generation | occurrence | production soil corresponding to the environment of the soil which should be greened, and the 2nd accommodating part which accommodated the artificial soil. Features. In other words, since the locally generated soil contained in the first containment unit contains a certain amount of seeds of natural vegetation plants, the natural vegetation is placed on the locally generated soil before the artificial soil without waiting for the seeds to fly. Plants can germinate and grow. In addition to the locally generated soil area, the artificial soil area has been formed on the vegetation mat, so that the slope can be planted with natural vegetation plants efficiently and stably while reducing the amount of locally generated soil used. can do. Specifically, natural vegetation plants grow relatively quickly in the area of the locally generated soil on the vegetation mat, so that a wall of the natural vegetation plant is formed adjacent to the artificial soil. Natural vegetation plants grown like a wall in the locally generated soil function to capture flying seeds and guide them to the artificial soil, or to suppress the outflow of flying seeds from the artificial soil. Therefore, the vegetation mat of the present invention can be more efficiently greened with natural vegetation plants that inhabit the soil surface.

According to the first aspect of the present invention, by inserting a vegetation bag containing locally generated soil or artificial soil into the accommodating portion made of a net-like long cylindrical body, the region of locally generated soil or artificial soil is placed on the vegetation mat. Can be easily formed.

According to the first aspect of the present invention, the rough portion of the mesh-like long cylindrical body is the shoulder of the sloped surface because the dense and dense portions are formed to be biased in the width direction (the direction perpendicular to the longitudinal direction) of the housing portion. The vegetation mat can be arranged on the slope so that the dense portion of the reticulated long cylindrical body is located on the slope (lower) side of the slope. That is, since the mesh on the slope side of the slope is rough, it is easy to capture flying seeds, and the germination and growth of plants are not disturbed by the net. On the other hand, since the mesh on the slope side of the slope is fine, it is possible to suppress the outflow of the locally generated soil and artificial soil including seeds and to more stably hold the locally generated soil and artificial soil.

According to one embodiment of the present specification , the vegetation mat includes a first storage unit that stores locally generated soil corresponding to an environment of soil to be greened, and a second storage unit that stores artificial soil. Features. In other words, since the locally generated soil contained in the first containing part contains a certain amount of seeds of natural vegetation plants, the natural vegetation is not generated in the locally generated soil before the artificial soil without waiting for the seeds to fly. Plants can germinate and grow. In addition to the locally generated soil area, artificial soil area is formed on the vegetation mat, and the slope is efficiently and stably greened only with natural vegetation plants while reducing the amount of locally generated soil used. can do. Specifically, natural vegetation plants grow relatively quickly in the area of the locally generated soil on the vegetation mat, so that a wall of the natural vegetation plant is formed adjacent to the artificial soil. Natural vegetation plants grown like a wall in the locally generated soil function to capture flying seeds and guide them to the artificial soil, or to suppress the outflow of flying seeds from the artificial soil. Furthermore, the 1st accommodating part is provided with the net-like cover body which covers a vegetation mat. By arranging the locally generated soil (or the vegetation bag including the locally generated soil) inside the lid, it is possible to stably keep the locally generated soil in the first storage unit without wasting it. Therefore, the vegetation mat of the present invention can be more efficiently greened with natural vegetation plants that inhabit the soil surface.

According to one embodiment of the present specification , the cover body is openable and closable, so that the locally generated soil is disposed in the first housing portion with the cover body opened, and the cover body is It is possible to easily arrange the locally generated soil in the first accommodating portion by closing.

According to one embodiment of the present specification , by being made of a hard (rigid) synthetic resin, it is possible to stably secure the first storage portion that stores the locally generated soil on the vegetation mat.

According to the invention described in claim 2 , the slope revegetation method includes a first area in which the locally generated soil is disposed on a part of the slope, and a part different from the first area on the slope. A second region in which the artificial soil is arranged is formed. That is, since the locally generated soil in the first region contains a certain amount of seeds of natural vegetation plants, it is possible to germinate and grow natural vegetation plants prior to artificial soil without waiting for the seeds to fly. it can. In addition, the second area of artificial soil was formed on the slope in addition to the first area of locally generated soil. It can be planted only with plants. Specifically, since natural vegetation plants germinate and grow relatively quickly in the first region of the locally generated soil on the slope, a wall of the natural vegetation plant adjacent to the artificial soil is formed. Natural vegetation plants grown like a wall in the locally generated soil function to capture flying seeds and guide them to the artificial soil, or to suppress the outflow of flying seeds from the artificial soil. Therefore, the slope planting method of the present invention can more efficiently plant the soil surface with natural vegetation plants that inhabit the land.

According to the invention described in claim 2, the first accommodating portion for accommodating the local soil generated, and by laying down the vegetation mat comprising a second storage portion for storing an artificial soil, the first region and the second region Can be easily formed on the slope.

According to the second aspect of the present invention, the first and second regions can be easily formed on the vegetation mat by inserting the vegetation bag containing the locally generated soil or the artificial soil into the accommodating portion formed of the net-like long cylindrical body. Can be formed. Furthermore, the dense portion is formed in a biased manner in the width direction of the housing portion (direction orthogonal to the longitudinal direction), the coarse portion of the reticulated long cylinder is located on the shoulder side of the slope, and the dense portion of the reticulated long tube is Place the vegetation mat on the slope so that it is located on the slope side of the slope. That is, since the mesh on the slope side of the slope is rough, it is easy to capture flying seeds, and the germination and growth of plants are not disturbed by the net. On the other hand, since the mesh on the slope side of the slope is fine, it is possible to suppress the outflow of the locally generated soil and artificial soil including seeds and to more stably hold the locally generated soil and artificial soil.

According to the third aspect of the present invention, in addition to the effect of the second aspect of the invention, by providing a dam body on the side of the first bottom of the first accommodating portion, the locally generated soil is dammed by the dam body. It can stop and suppress the outbreak of soil generated locally.

The schematic perspective view of the vegetation mat of one embodiment of the present invention. The partial expansion perspective view of the vegetation mat of FIG. The schematic sectional drawing of the vegetation mat of FIG. The schematic diagram which shows the 1st step (the stage immediately after installation and the stage after rainfall) of the slope vegetation structure which installed the vegetation mat of FIG. The schematic diagram which shows the 2nd step (The stage which the natural vegetation plant germinated from the 1st area | region of the local generated soil) of the slope vegetation structure which installed the vegetation mat of FIG. The third stage of the slope vegetation structure with the vegetation mat shown in Fig. 1 (the stage where natural vegetation plants germinated in the second area of the artificial soil in addition to the growth of natural vegetation plants in the first area of the locally generated soil) FIG. The schematic perspective view of a part of vegetation mat of another embodiment of the present invention. The schematic sectional drawing of the vegetation mat of FIG. The schematic diagram which shows the slope vegetation structure which installed the vegetation mat of FIG. The schematic diagram which shows the slope vegetation structure constructed | assembled by the slope greening method of another embodiment of this invention. The schematic diagram which shows the slope vegetation structure constructed | assembled by the slope greening method of another embodiment of this invention.

  Embodiments of the present invention will be described below 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.

[First Embodiment]
FIG. 1 is a schematic perspective view of a vegetation mat 100 according to an embodiment of the present invention. The vegetation mat 100 is a flexible flat longitudinal mat having a predetermined size and a predetermined thickness. The vegetation mat 100 is obtained by bonding a net body formed by weaving warp yarns and weft yarns substantially orthogonally to a mat-like base portion 101 made of a nonwoven fabric sheet. In this embodiment, when the vegetation mat 100 is laid on the slope, the direction along the slope direction of the slope is defined as the “vertical” direction, and the direction along the contour line direction of the slope is defined as the “lateral” direction. Furthermore, when the vegetation mat 100 is laid on the slope, the side that is located on the slope side (upper or high side) of the slope is the “up” position, and the slope side (lower or lower side) of the slope. Side) is defined as the “down” position.

  As shown in FIG. 1, the vegetation mat 100 of the present embodiment includes a mat-like base 101 and a buried seed 111 that is formed on the base 101 and corresponds to the natural environment of the soil (slope G) to be greened. The first storage unit 102 that stores the locally generated soil 106 and the second storage unit 103 that is formed in the base 101 and stores the artificial soil 107 are provided. The locally generated soil 106 is collected from the land in the vicinity of the slope G or the local soil. In general, the locally generated soil 106 can be collected only from the surface layer of about 10 cm for soil conservation. Therefore, the locally generated soil 106 has a limited amount and is very valuable. On the other hand, the artificial soil 107 is a general cultivated soil or a base material that can be purchased in a market such as a home center, and the type thereof is not particularly limited.

  FIG. 2 is a partially enlarged view of the vegetation mat 100 of FIG. As shown in FIG. 2, the 1st and 2nd accommodating parts 102 and 103 are comprised from the net-like long cylinder extended | stretched to a longitudinal direction, and are comprised so that the vegetation bag 108 can be hold | maintained. The vegetation bag 108 containing the artificial soil 107 can be selected from a water-decomposable or biodegradable bag or a fine net that prevents spillage of soil and has sprouting and rooting properties. On the other hand, the vegetation bag 108 containing the locally generated soil 106 is preferably a fine net, and particularly preferably not water-degradable. This is because the collected locally generated soil 106 generally contains a large amount of moisture, and the vegetation bag 108 may be easily broken before being installed in the first storage unit 102. The net-like long cylindrical body is composed of a plurality of warp yarns positioned in the longitudinal direction and weft yarns connecting the warp yarns. The weft yarn is divided into front and back surfaces, and each warp yarn is separated from each other in the transverse direction. A cylindrical shape is formed by alternately weaving. The long cylinder is formed in a bag shape in which two nets are overlapped. The long cylindrical body extends from one end to the other so that the longitudinal direction thereof is along the lateral direction of the vegetation mat 100. One end or both ends of the end portion in the longitudinal direction of the long cylindrical body are opened, and a cylindrical vegetation bag 108 can be inserted.

  Further, the long cylindrical body is formed by combining a rough portion 104 having a coarse eye and a dense portion 105 having a fine eye. Note that the rough portion 104 and the dense portion 105 are defined as regions having relatively different sizes in both the vertical and horizontal directions or in either eye. The coarse portion 104 is formed so as to be biased toward one end side in the width direction orthogonal to the longitudinal direction of the long cylindrical body in the plan view of the vegetation mat 100. In particular, the rough portion 104 occupies the substantially upper half in the vertical direction in the mat plane, and the dense portion 105 occupies the remaining substantially lower half. Thus, as will be described later, when the vegetation mat 100 is laid on the slope G, the rough portion 104 occupying a part of the outer periphery of the long cylindrical body is positioned on the upper side of the vegetation mat 100, and The dense portion 105 occupying the rest is located on the lower side. In this embodiment, the coarse portion 104 has a mesh size of about 20 mm in length and width of about 12.5 mm, and the dense portion 105 has a mesh size of about 3 mm in length and width of about 12.5 mm. The present invention is not limited to specific dimensions.

  FIG. 3 is a schematic sectional view of the vegetation mat 100. As shown in FIG. 3, the locally generated soil 106 and the artificial soil 107 are individually filled in a cylindrical vegetation bag 108. Each vegetation bag 108 holding the locally generated soil 106 and the artificial soil 107 is inserted into the first and second accommodating portions 102 and 103 separately. And the 1st accommodating part 102 which accommodates only the field generation | occurrence | production soil 106 and the 2nd accommodating part 103 which accommodates only the artificial soil 107 are located in a line along the vertical direction of the vegetation mat 100. In the present embodiment, the ratio of the first storage unit 102 that stores the locally generated soil 106 and the second storage unit 103 that stores the artificial soil 107 is 1: 2. In other words, on the vegetation mat 100, the second region formed by the artificial soil 107 is formed in an area twice as large as the first region formed by the locally generated soil 106. From the viewpoint of saving the usage amount of the locally generated soil 106 and promoting greening of the slope G, the ratio as in this embodiment is preferable. However, the ratio of the first storage unit 102 (the locally generated soil 106) and the second storage unit 103 (the artificial soil 107) may be arbitrarily changed according to the amount of the locally generated soil 106 that is available. Moreover, in the vegetation mat 100 of this embodiment, although the 1st accommodating part 102 and the 2nd accommodating part 103 are located in a line with the up-down direction of the vegetation mat 100, this invention is not limited to this. For example, in the modified example of the present invention, the first storage portion (first region) and the second storage portion (second region) may be alternately arranged in the left-right direction of the vegetation mat.

  Next, the slope greening method for constructing the slope vegetation structure 10 of this embodiment and greening the slope G with natural vegetation plants will be described. First, the locally generated soil 106 is collected from the natural environment corresponding to the slope G (soil to be greened). Different vegetation bags 108 are filled with the locally generated soil 106 and the artificial soil 107. Next, the vegetation mat 100 is laid on the slope G and fixed with an anchor or the like. At this time, the longitudinal direction of the long cylindrical body of the first and second accommodating portions 102 and 103 is substantially orthogonal to the inclination direction of the slope G, and the rough portion 104 of the long tubular body is on the shoulder side of the slope G. The vegetation mat 100 is disposed so as to be positioned at the position. Then, the vegetation bag 108 filled with the locally generated soil 106 is accommodated in the first accommodation portion 102 of the vegetation mat 100, and the vegetation bag 108 filled with the artificial soil 107 is accommodated in the second accommodation portion 103 of the vegetation mat 100. . Thus, the first region (first housing portion) 102 in which the locally generated soil 106 is arranged on a part of the slope G is formed, and the artificial soil is located at a position different from the first region 102 on a part of the slope G. A second region (second housing portion) 103 in which 107 is disposed is formed. The vegetation mat 100 may be fixed to the slope G after the locally generated soil 106 and the artificial soil 107 are accommodated in the first and second accommodating portions 102 and 103. That is, in the slope revegetation method of the present invention, the builder may directly form the first region and the second region on the slope at the site, or the locally generated soil and artificial soil may be preliminarily placed in a factory or the like. You may prepare the vegetation mat filled to the 1 accommodation part and the 2nd accommodation part, respectively.

  Next, with reference to FIGS. 4 to 6, a description will be given of changes over time based on actual observation of the slope vegetation structure 10 in which the vegetation mat 100 of the present embodiment is installed on the slope G. FIG.

  FIG. 4 is a schematic diagram showing a first stage of the slope vegetation structure 10. In the slope vegetation structure 10 of FIG. 4, the vegetation bag 108 is disassembled due to rain immediately after the vegetation mat 100 is installed on the slope G. In this first stage, the locally generated soil 106 includes the buried seeds 111 of the natural vegetation plant P, whereas the artificial soil 107 does not include seeds. The natural vegetation plant P is, for example, a flower or plant such as mugwort, Japanese pampas grass, medakagi, kayak, itadori, yahaz, or birch.

  As shown in FIG. 4, the rough portion 104 is disposed on the shoulder side of the slope P, and the dense portion 105 is disposed on the slope side of the slope P. The mesh of the lower half of each housing portion 102, 103 is made finer than that of the upper half, and the contents (locally generated soil 106 and artificial soil 107) are held by the lower half of the long cylindrical body. Therefore, even if the vegetation bag 108 is torn or disappears, the contents remain on hold. That is, the dense portion 105 of the lower half formed with a fine mesh catches the contents without dropping from the slope G. On the other hand, since the mesh on the shoulder side of the slope P is rough, it is easy to capture the flying seeds 112, and germination and growth of the natural vegetation plant P are not disturbed by the net.

  FIG. 5 is a schematic diagram showing a second stage of the slope vegetation structure 10. In the slope vegetation structure 10 of FIG. 5, natural vegetation plants P germinate and grow from the buried seeds 111 in the first region 102 by the locally generated soil 106 after about one month from the first stage. The natural vegetation plant P has not yet germinated from the second region 103 by 107. That is, since the locally generated soil 106 contains the embedded seed 111 of the natural vegetation plant P in advance, the vegetation plant P germinates and grows from the locally generated soil 106 before the artificial soil 107. Then, a “wall” of the natural vegetation plant P is formed adjacent to the second region 103 of the artificial soil 107. The “wall” of the natural vegetation plant P makes it easy to capture the flying seed 112 in the second region 103, and prevents the flying seed 112 captured on the second region 103 from flowing out.

  FIG. 6 is a schematic diagram showing a third stage of the slope vegetation structure 10. In the slope vegetation structure 10 of FIG. 6, about one month has passed since the second stage, and the natural vegetation plant P in the first region 102 has flourished, and the natural vegetation plant from the flying seed 112 in the second region 103 by the artificial soil 107. P germinates and grows. As a comparison with the present invention, in general, when a vegetation mat containing only artificial soil is laid, the first stage until the flying seeds are captured and the natural vegetation plant P is germinated and grown as in the third stage. It takes more than 3 months. In addition, germinated and grown natural vegetation plants become sparse, and stable slope planting is not easy. This is because the seeds that come in are likely to flow out due to rainfall or the like, and it is difficult to stably maintain them on the mat. On the other hand, in the present invention, the natural vegetation plant P is quickly germinated and grown from the buried seed 111 in the first region 102 by the locally generated soil 106, and the “wall” of the natural vegetation plant P captures the flying seed 112. Further, by promoting the holding, the period required for germination and growth of the second region 103 can be shortened. As a result, in the third stage slope vegetation structure 10, there is a difference in the degree of growth of the natural vegetation plant P between the first and second regions 102 and 103, but the slope G as a whole is only the natural vegetation plant P. It is greened by. With further aging, the natural vegetation plant P in the second region 103 grows, and the first region 102 and the second region 103 cannot be distinguished from each other. In this way, the greening by only the natural vegetation plant P on the slope G is completed.

  Hereinafter, the effect of the vegetation mat 100 and the slope greening method of one embodiment of the present invention will be described.

  According to this embodiment, the vegetation mat 100 includes a first storage unit 102 that stores the locally generated soil 106 corresponding to the environment of the slope P to be greened, and a second storage unit 103 that stores the artificial soil 107. It is characterized by providing. That is, since the locally generated soil 106 accommodated in the first accommodating portion 102 contains a certain amount of the buried seed 111 of the natural vegetation plant P, the local generated soil 106 is placed before the artificial soil 107 without waiting for the flying seed 112. The natural vegetation plant P can germinate and grow on the generated soil 106. Further, since the second region 103 of the artificial soil 107 is formed on the vegetation mat 100 in addition to the first region 102 of the locally generated soil 106, the amount of the valuable locally generated soil 106 is saved and the slope is increased. G can be greened efficiently and stably using only the natural vegetation plant P. Specifically, since the natural vegetation plant P germinates and grows relatively quickly in the first region 102 of the locally generated soil 106 on the vegetation mat 100, the “wall” of the natural vegetation plant P is adjacent to the artificial soil 107. Is formed. The natural vegetation plant P that has grown like a wall in the locally generated soil 106 functions to capture the flying seed 112 and guide it to the second region 103, or to suppress the outflow of the flying seed 112 on the second region 103. To do. Therefore, the vegetation mat 100 and the slope greening method of the present embodiment can more efficiently and quickly green the slope P with the natural vegetation plant P that inhabits the land.

[Second Embodiment]
Next, a vegetation mat 200 according to another embodiment of the present invention will be described with reference to FIGS. FIG. 7 is a schematic perspective view of a vegetation mat 200 according to the second embodiment of the present invention. FIG. 8 is a schematic sectional view of the vegetation mat 200. FIG. 9 is a schematic diagram showing a slope vegetation structure 20 in which the plant growing device 200 is installed. In the drawings, components having the same last two digits in the components indicated by three digits have the same or similar features unless otherwise specified.

  As shown in FIG. 7, the vegetation mat 200 includes a mat-like base portion 201, a first storage portion 202 that stores the locally generated soil 206 formed in the base portion 201, and a first storage portion that is formed in the base portion 201. 202 and a second storage unit 203 that stores the artificial soil 207 at a different position. In this embodiment, the 1st accommodating part 202 is defined by the vegetation mat 200 (or base part 201) surface, and the net-like cover body 209 attached to the base part 201 and covering the vegetation mat 200 surface. On the other hand, the 2nd accommodating part 203 consists of a net-like long cylinder body extended in the longitudinal direction which has the rough part 204 and the dense part 205 similarly to 1st Embodiment.

  The lid 209 is made of a rigid (hard) synthetic resin. More specifically, the lid 209 is formed as a so-called “non-knitted net” integrally formed of synthetic resin, and therefore 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.

  The lid 209 extends in the longitudinal direction in the lateral direction and is curved in an arch shape in the longitudinal direction. And as shown in FIG. 8, the cover body 209 is attached to the vegetation mat 200 surface so that opening and closing is possible. The lid body 209 is attached to the base portion 201 of the vegetation mat 200 so that the hinge portion of the lid body 209 is located on the lower side (the buttock side) of the vegetation mat 200. The installer can store the locally generated soil 206 in the first storage unit 202 by placing the locally generated soil 206 after opening the lid 209 and closing the lid 209. At this time, since the hinge portion of the lid 209 is positioned on the buttock side, the locally generated soil 206 (or the vegetation bag 208) can be supported from below even when the lid 209 is opened. That is, the builder can easily store the locally generated soil 206 in the first storage unit 202.

  In the present embodiment, a net-like long cylindrical body is formed over the entire base 201, and the first housing portion 202 is formed by providing a lid 209 from above the net-like long cylindrical body. . That is, the installer can determine the first storage unit 202 and the second storage unit 203 in a flexible manner by attaching the lid 209 at a desired position on the site. However, the present invention is not limited to the above-described embodiment, and the lid may be directly attached on the base (not via the net-like long cylinder).

  FIG. 9 shows the slope vegetation structure 20 in which the vegetation mat 20 is installed on the slope G, the locally generated soil 206 is housed in the first housing portion 202, and the artificial soil 207 is housed in the second housing portion 203. . As shown in FIG. 9, the first housing 202 including the locally generated soil 206 is protected by the rigid lid 209. In this embodiment as well, similar to FIGS. 5 and 6 shown in the first embodiment, it is possible to perform greening only with the natural vegetation plant P on the slope G over time.

[Third and Fourth Embodiments]
Next, with reference to FIG. 10 to FIG. 11, a description will be given of a slope greening method and slope vegetation structures 30 and 40 of another embodiment of the present invention. FIG. 10 is a schematic perspective view of a slope vegetation structure 30 according to the third embodiment of the present invention. FIG. 11 is a schematic perspective view of a slope vegetation structure 40 according to the fourth embodiment of the present invention. In the drawings, components having the same last two digits in the components indicated by three digits have the same or similar features unless otherwise specified.

  10 and 11 show the slope vegetation structures 30 and 40 constructed on the slope G by the slope greening method of another embodiment of the present invention. In the slope greening method, unlike the above embodiment, the first regions 302 and 402 and the second regions 303 and 403 are formed on the slope G without using a vegetation mat. That is, the slope revegetation method of the present embodiment includes a step of collecting locally generated soils 306 and 406 including buried seeds 311 and 411 from the natural environment corresponding to the soil to be greened, and a part on the slope G. Before and after the step of forming the first regions 302 and 402 where the locally generated soils 306 and 406 are arranged and the step of forming the first regions 302 and 402, the first regions 302, And a step of forming second regions 303 and 403 in which artificial soils 307 and 407 are arranged at positions different from those of 402. In the slope greening method, the vegetation plant P germinates and grows from the first regions 302 and 402 before the second regions 303 and 403.

Moreover, the slope greening method of this embodiment is the damming bodies 309 and 409 for damming the field generation | occurrence | production soil 306 and 406 on the method bottom side of the 1st field 302 and 402, as shown in FIG.10 and FIG.11. The step of providing may be selectively included. The dam body 309 is made of a substantially flat net-like body made of hard synthetic resin, and is erected on the slope G with an anchor or the like, thereby defining the first region 302 on the shoulder side. On the other hand, the damming body 409 is formed of a curved net made of a hard synthetic resin and covers the locally generated soil 406 from above as in the case of a lid, thereby defining the first region 402. Then, the first regions 302 and 402 are maintained on the slope G by damming the locally generated soils 306 and 406 with the damming bodies 309 and 409 to prevent the locally generated soils 306 and 406 from flowing out. Can do. Although not shown, a second damming body for damming the artificial soil 307, 407 may be disposed on the method side of the second regions 303, 403.

  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.

10, 20, 30, 40 Slope vegetation structure 100, 200 Vegetation mats 101, 201 Bases 102, 202, 302, 402 First housing part (first region)
103, 203, 303, 403 Second accommodating portion (second region)
104, 204 Coarse portion 105, 205 Dense portion 106, 206, 306, 406 Locally generated soil 107, 207, 307, 407 Artificial soil 108, 208, 308, 408 Vegetation bag 209 Lid 309, 409 Weir body 111, 211 , 311,411 buried seed 112,212,312,412 flying seed P natural vegetation plant G slope

Claims (3)

A vegetation mat laid on the soil to be greened with natural vegetation plants,
A first containing portion containing locally generated soil containing buried seeds corresponding to the natural environment of the soil to be green;
A second housing part containing artificial soil at a position different from the first housing part,
The first and second storage portions are configured from a net-like long cylindrical body extending in the longitudinal direction, and configured to hold a vegetation bag that stores the locally generated soil or the artificial soil,
The long cylindrical body is a combination of a rough portion with a coarse eye and a dense portion with a fine eye, and the rough portion is in a width direction orthogonal to the longitudinal direction of the long tubular body in a plan view of the vegetation mat. It is formed biased to one end side,
When the vegetation mat is laid on a slope, it can be laid so that the rough portion is located on the slope side of the slope and the dense portion is located on the slope side of the slope,
A vegetation mat, wherein a natural vegetation plant germinates and grows from the first housing part containing the locally generated soil before the second housing part containing the artificial soil. A slope planting method for planting slopes with natural vegetation plants,
Collecting locally generated soil containing buried seeds from the natural environment corresponding to the soil to be greened;
Forming a first region in which the locally generated soil is disposed on a part of the slope;
Before and after the step of forming the first region, forming a second region in which artificial soil is disposed at a position different from the first region on a part of the slope,
Further comprising the step of laying a vegetation mat comprising a first storage portion for storing the locally generated soil and a second storage portion for storing the artificial soil,
By accommodating the locally generated soil in the first accommodating portion, the first region is formed, and by accommodating the artificial soil in the second accommodating portion, the second region is formed,
The first and second accommodating portions are configured from a net-like long cylindrical body extending in the longitudinal direction, and configured to hold a water-degradable or biodegradable vegetation bag,
The long cylindrical body is a combination of a rough portion with a coarse eye and a dense portion with a fine eye, and the rough portion is in a width direction orthogonal to the longitudinal direction of the long tubular body in a plan view of the vegetation mat. It is formed biased to one end side,
Laying the vegetation mat on the slope so that the rough portion is located on the slope side and the dense portion is located on the slope side,
A method of revegetation, wherein a vegetation plant germinates and grows from the first region before the second region. The slope revegetation method according to claim 2 , further comprising a step of providing a damming body for damming the locally generated soil on the slope side of the first region.

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