JP4926344B2 - Plant introduction method using buried seeds - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plant introduction how by buried seeds against, for example, cut slope and collapsed bare ground slopes.
[0002]
[Prior art]
The transition of natural vegetation on cut slopes and bare slopes is difficult to progress even after a long period of time, so in recent years the forest surface soil containing buried seeds called seed banks. leverage, which was introduced into the actively slope, that have devised to promote the transition of vegetation made.
[0003]
[Problems to be solved by the invention]
When introducing the forest surface soil to the slope, the construction method is such that the forest surface soil itself is sown on the slope or the vegetation base is mixed and sprayed onto the slope as appropriate. In order to construct the forest surface soil over the entire slope of a range, a large amount of forest surface soil is required, and not only is it difficult to collect the forest surface soil, but it also requires a lot of labor and time. There was a problem in that.
[0004]
In addition, the surface soil of the forest tends to flow during the rain, and the surface soil of the forest surface becomes dense and the seedlings fall down, resulting in a bias in the growth of buried seeds on the entire surface of the slope. It was difficult to make the entire surface green.
[0005]
The present invention has been made in view of such circumstances, and its purpose is to introduce a small amount of forest surface soil, but to promote the transition of vegetation uniformly throughout the slope. It is in the point of providing the plant introduction method achieved in an effort.
[0006]
[Means for Solving the Problems]
That is, in the plant introduction method according to the present invention, the sheet allowing rooting and germination of plant seeds is folded in three so that the upper and lower sides overlap, and the left and right sides of the tri-fold sheet are joined. A vegetation bag constructed by accommodating a forest surface soil containing buried seeds as a plant introduction base material from the accommodation opening formed by the upper and lower sides in the produced bag body is stretched and buried on the slope. and placed on a slope through the insertion slit vegetation bag formed with a spacing of Yichun suitable for mat or net to allow passage shoots soil seed, as characterized by fixing the vegetation bag slopes (Claim 1).
[0007]
According to the above method, it is possible to prevent the slope surface soil from being washed away due to rain by stretching the mat or net on the slope. In addition to this, the vegetation bags containing the forest surface soil including the buried seeds are arranged at appropriate intervals over the entire slope, and this is fixed. Will come to be.
[0008]
And this stable forest surface soil is used as a vegetation base, so that buried seed grows, so that the greening of the slope with the buried seed is started evenly at appropriate intervals. As the vegetation eventually generates soil, the soil from the vegetation is generated over the entire slope, and the greening of the forest on the entire slope has been achieved over several years. Become so.
[0009]
That is, according to the plant introduction method of the present invention, by introducing a small amount of forest surface soil, the promotion of vegetation transition can be reasonably achieved uniformly over the entire slope, Since the amount of soil introduced is small, it is easy to collect the forest surface soil, and even if a vegetation bag is installed, it can be easily done in a short time with a small number of people.
[0010]
To the above-mentioned mat or net, for example tall fescue, creeping red fescue, bentgrass, mugwort, Japanese pampas grass, Medohagi, and foreign herbaceous such as Itachichihagi, conventional herbaceous, one or two or more kinds of slope greening, such as conventional woody If plant seeds are attached or sprayed, these plants are suitable for the early planting of the slope because of their early growth.
[0011]
In this way, in order to promote early planting of slopes, one or more kinds of plant seeds for slope planting are used, for example, soil conditioner, water retention agent, organic compost, chemical fertilizer, plant fiber, etc. It is also preferable to take an introduction form in which the vegetation base is mixed appropriately and sprayed onto the slope.
[0012]
When spraying this vegetation base material containing plant seeds for slope planting after installation of the vegetation bag, in order to prevent the vegetation due to buried seeds from being overwhelmed by vegetation with early initial growth, It is desirable to lay a vegetation base receiving sheet on the top surface of the vegetation base and remove the sheet after spraying of the vegetation base, and conversely, before installing the vegetation bag, the vegetation base containing plant seeds for slope planting When spraying, lay a sheet on the surface corresponding to the installation part of the vegetation bag, remove the sheet after spraying of the vegetation base material, install a vegetation bag there, and vegetation with buried seeds has a fast initial growth What is necessary is just not to be overwhelmed by vegetation.
[0013]
As the plant introduction base material, select the forest surface soil containing buried seeds itself, or the vegetation base material including the soil improvement material mentioned above, and the forest surface soil containing buried seeds, and introduce this plant. As a vegetation bag containing the base material, sheets that allow rooting and germination of plant seeds, such as water-degradable paper and nonwoven fabric, water-soluble polyvinyl alcohol sheets, and other cotton nets are attached. For example, a tubular or rectangular bag body having a container introduction base accommodation opening is formed using bon-like paper, the plant introduction base material is accommodated in the bag body, and the accommodation opening is closed by a stapler or the like. Can be selected.
[0014]
Alternatively, as a vegetation bag containing the plant introduction base material, a sheet that allows rooting and germination of plant seeds is folded in three so that the upper and lower sides overlap, and the left and right sides of the tri-fold sheet The part which joins a part, forms the accommodation opening of a plant introduction base material by the upper and lower sides, and can select the thing formed by accommodating a plant introduction base material in the bag body of the trifold sheet | seat provided with this accommodation opening ( claim) Item 1 ).
[0015]
According to the vegetation bag having the three-fold sheet configuration, the container introduction base is formed by expanding the overlapping upper and lower sides, and the plant introduction base is formed in the bag body through the accommodation opening. The upper and lower sides are overlapped so that the upper and lower sides are restored, and the receiving port is closed. According to this configuration, the means for closing the receiving port is required. In addition to not, since only the left and right sides of the tri-fold sheet are joined, the vegetation bag is provided at low cost.
[0016]
In order to prevent the seed vegetation contained in the plant introduction substrate from being subjected to pressure, it is desirable to provide a herbicidal sheet around the periphery of the bag ( claim 3 ).
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 and FIG. 2 show, for example, the construction status of the cutting slope N at the initial stage of greening, specifically the construction status of plant introduction with buried seeds. A forest surface soil 1 containing buried seeds is collected, and a large number of vegetation bags 2 containing the forest surface soil 1 are prepared.
[0018]
That is, as shown in FIG. 3, as a sheet allowing seed rooting and germination, for example, bonrick paper with a cotton net attached thereto is selected and the upper and lower sides 3a and 3b of the sheet are overlapped. The bag 3 for housing the forest surface soil 1 is produced by folding the sheet into three and joining the left and right sides 3c, 3c of the folded sheet by means 4 such as stitching.
[0019]
Then, the upper and lower side portions 3a and 3b that are overlapped are expanded, and the forest surface soil 1 is accommodated in the bag body 3 of the tri-fold sheet through the accommodation port 5 formed therein, and thereafter, the upper and lower side portions 3a. The upper and lower sides 3a, 3b are overlapped so as to return the original 3b, and the accommodation opening 5 is closed. A large number of vegetation bags 2 configured in this way are prepared.
[0020]
In this embodiment, bonrick paper is selected as a sheet that allows seed rooting and germination. In addition, for example, water-degradable paper or nonwoven fabric, water-soluble polyvinyl alcohol sheet, or the like is selected. Moreover, although the thing of the sheet structure of a trifold is shown as the bag body 3, as shown to FIG. 4 (A) and (B), using sheets, such as a bonrick paper, water-decomposable paper, and a nonwoven fabric, are used. The bag body 3 may be configured in a cylindrical shape or a square shape having the accommodation port 5, for example, the forest surface soil 1 is accommodated in the bag body 3, and the accommodation port 5 is formed as a stapler or the like. By closing with, the vegetation bag 2 is produced.
[0021]
As the forest surface soil 1 to be accommodated in the vegetation bag 2, it is desirable to select one containing buried seeds around the slope N where it should be greened. Thus, for example, understory vegetation such as small shrubs, kayaks, and bushes is cut and removed, and the A ₀₀ layer where accumulated fallen leaves, the A ₀ layer where accumulated deciduous humus accumulated, and the humus and soil and intermingled A1 layer, intended for the a ₂ layers of missing nutrients, construed by using a these example Kountsume 6 is can I collect it.
[0022]
However, the sampling area of the forest surface soil 1 is not limited to the area around the slope N to be greened. For example, the development area of a new town or a construction area such as a road where large-scale land development is performed is also subject to sampling. Is done.
[0023]
The forest surface soil 1 collected in this way can be used as a plant introduction base material, and can be accommodated in the bag body 3 as it is to constitute the vegetation bag 2. For example, a soil conditioner, water retention agent, organic A vegetation base material that is appropriately mixed with compost, chemical fertilizer, plant fiber, etc., and containing a forest surface soil 1 containing buried seeds is used as a plant introduction base material, and this is accommodated in a bag 3 and vegetated. The bag 2 may be configured, and hereinafter, the forest surface soil 1 containing buried seeds or the forest surface soil 1 containing buried seeds contained in a vegetation substrate is referred to as a plant introduction substrate. Sometimes referred to as forest surface soil 1 as appropriate.
[0024]
Perlite, vermiculite, superabsorbent polymer, etc. are selected as the water retention material, and peat moss, bark compost, and bentonite are selected as the soil conditioner.
[0025]
Returning to FIG. 1 and FIG. 2, a mat (for example, a sheet-like material in which plant fibers mainly composed of palm fibers are blended into a non-woven fabric) that enables germination of buried seeds when the slope N is replanted. In this mat 9, lateral slits 8 for inserting the vegetation bag 2 are formed at appropriate intervals, and the mat 9 is stretched on the slope N to form the slits 8. The vegetation bag 2 is disposed on the slope N through the surface, and the vegetation bag 2 is fixed to the slope N using the anchor pin 10 or the like, and if necessary, reinforcement made of synthetic resin or metal The mat 9 is covered with the net 7 for use.
[0026]
According to the above plant introduction method, the mat 9 stretched on the slope prevents the surface soil of the slope N and the plant introduction base material 1 accommodated in the vegetation bag 2 from being dried, and the slope surface soil due to rainfall. Prevent the loss of
[0027]
In addition, the vegetation bag 2 disposed on the slope N through the slit 8 is covered with the mat 9 and is fixed to the slope N by the anchor pin 10 or the like, so that the movement of the vegetation bag 2 due to rainfall is prevented. Of course, the loss of the plant introduction base material 1 after the bag body 3 is corroded is reliably prevented.
[0028]
The pioneering buried seed contained in the plant introduction substrate 1 germinates and grows well with the plant introduction substrate 1 as a vegetation base even if the slope N has little or no soil. Thus, the revegetation of the slope N by the buried seeds is started evenly at appropriate intervals.
[0029]
This vegetation eventually generates soil around the vegetation bag 2 and repeats this, so that the soil generation area is expanded, and finally the soil is generated over the entire slope. Over time, greening across the slope is achieved.
[0030]
That is, according to the above-described plant introduction method, by introducing a small amount of forest surface soil 1, vegetation transition is promoted uniformly over the entire slope N, and conservation of the landscape is achieved at an early stage. In addition, since the introduction amount of the forest surface soil 1 can be reduced, the collection work of the forest surface soil 1 can be facilitated. Can be done easily.
[0031]
By the way, in the case of Quercus, which is a sunny tree, when it is grown as a single tree in a sunny field, the stem length is 15 cm, 114 cm in 1 year, 290 cm in 2 years, 458 cm in 3 years, 458 cm in 4 years , The breast height diameter (DBH) is 4.4 cm, grows up to 8.5 cm on the ground, and the average tree height is 10 years under a planting density of 3000 trees / ha in the community. There is a report that 8m and DBH reach an average of 8cm (16cm for larger ones).
[0032]
In addition, there is a report that Quercus is young enough to start breeding, and there is a report that a 2-year-old young tree with a height of 50 to 90 cm has flowered. Therefore, the seeds of Quercus must be included in the forest surface soil 1 separately. In addition, it is also preferable to include seeds of acorns such as white oak, arakashi, and cucumber, and these produce fruit early and supply seeds to the slope, so that the transition of vegetation is There are advantages to be realized early.
[0033]
Instead of placing the mat 9 on the slope N, as shown in FIG. 6, a slit 8 is formed in the net 7, the net 7 is placed on the slope N, and vegetation is passed through the slit 8. Even if the bag 2 is disposed on the slope N and a construction means for fixing the bag 2 to the slope N with an anchor pin 10 or the like is used, the introduction of the plant with the buried seeds as described above can be realized.
[0034]
Here, in the embodiment shown in FIG. 2, the slit 8 is formed in the horizontal direction, and in the embodiment shown in FIG. 6, the slit 8 is formed in the vertical direction. They may be formed in the direction or may be combined.
[0035]
When the slit 8 is formed in the horizontal direction, the vegetation bag 2 can be easily inserted and is excellent in workability, and when the slit 8 is formed in the vertical direction, the tensile strength in the vertical direction. This is particularly suitable when the net 7 is a target.
[0036]
To the above-mentioned net 7 or mat 9, for example, tall fescue, creeping red fescue, bentgrass, mugwort, Japanese pampas grass, Medohagi, and foreign herbaceous such as Itachichihagi, conventional herbaceous, one or two or more of the law, such as conventional woody If plant seeds for greening are attached or sprayed, these are suitable for achieving early greening of the slope N because of early growth.
[0037]
At this time, as shown in FIGS. 7A and 7B, in order to prevent the vegetation of the buried seeds germinated and grown from the vegetation bag 2 from being subjected to pressure by the vegetation having the early initial growth, , A herbicidal sheet 12 (a material is not specified, for example, a thick vinyl sheet material) having a root opening 11 that is slightly smaller in size in plan view than the vegetation bag 2 In preparation for the vegetation bag 2, it is desirable to inhibit germination or growth of plant seeds around the vegetation bag 2. 7 (A) and 7 (B) show the vegetation bag 2 shown in FIG. 3, but the vegetation bag 2 shown in FIGS. 4 (A) and 4 (B) is also a herbicidal sheet. Can also be provided.
[0038]
Instead of attaching or spraying plant seeds for slope planting to the net 7 or mat 9, one or more plant seeds for slope planting are used as, for example, soil conditioner, water retention agent, organic compost. Even if an introduction form in which a chemical fertilizer, plant fiber, or the like is mixed with a vegetation base appropriately mixed and sprayed onto the slope N, the slope N can be quickly greened.
[0039]
In this case, when spraying a vegetation base material containing plant seeds after the vegetation bag 2 is installed, the upper surface of the vegetation bag 2 is used so that the vegetation by the buried seeds is not subjected to pressure by vegetation with early initial growth. It is desirable to lay on the sheet for receiving the vegetation base and to remove the sheet after spraying the vegetation base. On the contrary, spray the vegetation base containing plant seeds for slope planting before the vegetation bag 2 is installed. In this case, a sheet is laid on the surface corresponding to the installation part of the vegetation bag 2, the sheet is removed after spraying of the vegetation base material, the vegetation bag 2 is installed there, and the vegetation with buried seeds is the initial growth. It is only necessary to avoid overpressure by early vegetation.
[0040]
Note that the vegetation bag 2 according to the present invention is not limited to housing the plant introduction base material 1 including buried seeds and disposing it on the slope N through the slits 8, and other plant seeds are used. It is also possible to use for planting the slope N so that the plant introduction base material is contained and the net 7 or the mat 9 is not used, and this is arranged directly on the slope N.
[0041]
【Effect of the invention】
As described above, according to the invention described in claim 1, by introducing a small amount of forest surface soil, the introduction of a plant that can rationally promote the transition of vegetation over the entire slope is achieved. A method is provided, and according to this method, since the introduction amount of the forest surface soil is small, it is easy to collect the forest surface soil. This can be easily done in a short time with a small number of people.
[0042]
According to invention of Claim 3, the vegetation bag which does not require the closing means of an accommodation port is provided in low cost.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an initial stage of greening on a cut slope.
FIG. 2 is an explanatory view of the arrangement of vegetation bags.
FIG. 3 is a perspective view of a vegetation bag showing a state in which the forest surface soil is being accommodated and in a state where the accommodation has been completed.
4A and 4B are explanatory views of vegetation bags according to different embodiments, respectively.
FIG. 5 is an explanatory diagram showing a state of collecting forest surface soil.
FIG. 6 is an explanatory view of arrangement of vegetation bags according to another embodiment.
FIG. 7A is a perspective view of a vegetation bag showing a state before the weedproof sheet is attached, and FIG. 7B is a perspective view of the vegetation bag to which the weedproof sheet is attached.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Forest surface soil, 2 ... Vegetation bag, 3 ... Bag body, 3a-3c ... Sheet side part, 5 ... Storage port, 7 ... Net, 8 ... Slit, 9 ... Mat, 12 ... Weed prevention sheet.

Claims (3)

A sheet that allows plant seeds to root and germinate is folded in three so that the upper and lower sides overlap, and the left and right sides of the tri-fold sheet are joined to each other in the bag body. vegetation bag configured by housing a forest topsoil containing buried seeds as plant introduction substrate from storage slot formed by the section, stretched on slope to allow passage buds buried seeds mat or net and placed through the insertion slit on the slope of the vegetation bag formed of suitable Yichun intervals, plant introduction method according buried seeds, characterized in that fixing the vegetation bag slopes. Plant introduction method according buried seeds as claimed in claim 1 seeds Ru Ah attached or sprayed to the for slope greening mat or net. The plant introduction method using buried seeds according to claim 1 or 2, wherein a herbicidal sheet is provided on the periphery of the bag .

Images