JP3130844B2 - Greening method of slope - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method of planting a collapsed slope or a slope formed by road construction or the like by planting tree seedlings, and greening the area around the trees with herbaceous plants. The present invention relates to a slope greening method for stably maintaining the slope.

[0002]

2. Description of the Related Art Introducing trees on a slope and coexisting with herbaceous plants to return the slope to a balanced natural landscape is extremely suitable for maintaining the slope in a stable manner. As a greening method, there is a method of planting tree seedlings on a slope and spraying a soil containing herbaceous seeds on the slope.

[0003]

However, according to the above-mentioned revegetation method, tree seedlings whose initial growth is slow are pressurized by herbaceous plants which grow fast, so that tree seedlings can be reliably and soundly grown. It is difficult for some species, such as Yamahagi, Itachihagi and Komatsunagi, to take root depending on the conditions. Therefore, it was still difficult to introduce the roots systematically because the roots could not withstand the dry season in summer due to slow growth and withered in summer.

[0004] The present invention has been made in view of such circumstances, and has as its object to determine the species of trees to be afforested and to make it difficult to receive pressure from herbaceous plants. An object of the present invention is to provide a slope revegetation method that can return a slope to a natural scenery in a well-balanced manner by coexistence with plants.

[0005]

The technical means adopted by the present invention to achieve the above object are as follows.
That is, the revegetation method of the slope according to the present invention uses a plant fiber on the slope.
Laying of textiles and nets for spraying soil
With, and the vegetation pot and Ma Tsu door of the tree seedlings, mat
The mat covers the bottom of the vegetation pot and
In a state where it intersects with the string and is dispersed on the slope
After placement, it is characterized in that blowing soil dressing comprising herbaceous seeds on slopes of vegetation pot circumferential region.

[0006] As the above mat, water retention and corrosion
Made of vegetable fiber having properties is used, after arranging this on the slope, spraying the herbicide on the mat at the site ,
May also be impregnated with the herbicide to the mat, prior to placing the Ma <br/> Tsu DOO on slope, it may be dipping the mat herbicides liquid on site.

[0007] In addition, for example, in a mat manufacturing plant, a form in which the herbicide is impregnated into the mat in advance may be adopted. In this case, the mat is sealed with a synthetic resin sheet or the like, and is carried into the site. Take out the mat and place it on the slope.

[0008] According to the above-mentioned revegetation method, the mat made of plant fiber absorbs water such as rainfall and retains water to increase the water retention around the bottom of the vegetation pot. Withstands dryness and grows healthy without withering in the summer.

On the other hand, the herbaceous seeds in the soil sprayed around the vegetation pot are prevented from growing even if they germinate because of the herbicide impregnated in the plant fiber mat. The tree seedlings grow without being pressed by the herbaceous plants, and the herbaceous seeds contained in the soil also grow outside of the pot area, so that the tree seedlings are no longer under pressure by the herbaceous plants. Regardless of the type of tree seedling to be introduced, it does not matter.

[0010] In addition, plant fiber mats corrode and become fertilizers over the years, so that trees can grow reliably and soundly. Therefore, tree species are not required for tree seedlings. Thus, for example, by selecting a tree seedling of a native species, the coexistence of the native species trees and herbaceous plants achieves excellent slope revegetation suited to the area.

[0011] Here, the roots of the tree include a lateral root supporting root that is rooted along the ground, a direct root supporting root that is rooted in the ground,
There is a support root in the middle of the vertical root system, and when tree seedlings are introduced to the slope, the roots of the horizontal root system first become rooted in order to absorb nutrients and moisture from much of the soil surface. There is a nature to do.

Regarding the support roots of the horizontal root system, it is needless to say that firm rooting is important for supporting the tree body, and in view of this point, it is preferable to add soil to the area around the vegetation pot. Before spraying, a string made of plant fiber is stretched on the slope so as to cross the bottom of the pot. In this way, the string has water retention and From corrosion and fertilizer,
It is very suitable in terms of elongation of supporting roots of a horizontal root system rooted along the ground.

On the other hand, when a plant fiber mat is present at the bottom of the vegetation pot, the supporting roots of the direct root system and the supporting roots of the vertical root system are rooted in the ground through the mat. Opening the bottom of the vegetation pot in a mat made of wood has an advantage that the roots of the straight root system and the roots of the vertical root system can be easily laid in the ground.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of a revegetation method in which a slope is made into a forest by coexisting with a herbaceous plant. In the figure, reference numeral 1 denotes a string-like body made of plant fiber having water retention and corrosiveness, for example. It is composed of a straw rope, for example, at a distance of 0.5 m to 1.0 m in the vertical direction and at 0. 0 in the horizontal direction.
It is stretched vertically and horizontally on the slope N with an interval of 3 m to 0.5 m.

Numeral 2 is a mat made of vegetable fiber having water retention and corrosive properties, which is made of, for example, jute or coconut, has a thickness of about 1 cm, has a hole 3 in the center, and The string-like body 1 is disposed on the slope N in such a manner that the string-like body 1 faces the hole 3 so as to be dispersed at the intersection of the string-like body 1 and the upper, lower, left and right intermediate portions.

After arranging the mat 2 on the slope N, for example, a fatty acid-based herbicide (for example, Frenoc; trade name of Sankyo Co., Ltd.) which makes it difficult to grow herbaceous seeds including vegetative vegetation And the mat 2 is impregnated with the herbicide.

Before placing the mat 2 on the slope N,
The mat 2 may be immersed in a liquid herbicide at the site to impregnate the mat 2 with the herbicide, and the mat 2 may be disposed on the slope N. Alternatively, for example, in a mat manufacturing plant, The mat is impregnated with a herbicide in advance, the mat is sealed with a synthetic resin sheet, etc., and brought into the site,
Alternatively, the mat may be taken out and placed on the slope.

Numeral 4 is a mesh for spraying the soil, which is made of, for example, a corrosive net made of vegetable fiber having a mesh size of about 50 mm × 50 mm, a net made of metal or synthetic resin, a metal wire mesh made of metal, or the like. For example, it is stretched on the slope N so that the string 1 and the mat 2 are pressed by the stopper 5.

Reference numeral 6 denotes a vegetation pot which forms a growth space for the tree seedlings 7. A bamboo container 8, for example, having a lower portion cut obliquely so as to match the slope of the slope N, and the bottom of the container is a mat 2. It is arranged in the center of the mat 2 so as to be aligned with the hole 3, that is, so as to intersect with the cord 1, and
A pot seedling (tree seedling) 7 taken out of a planting pot 6a made of vinyl or the like is put into a container 8 while replenishing soil 9.

The hole 3 of the mat 2 is formed to be about the diameter of the bottom of the vessel 8 of the vegetation pot 6, but may be smaller or slightly larger than this, or as described later. In addition, the hole 3 need not be opened.

As a vegetation pot 6, a tree seedling 7 is placed in a container 8.
That is, for example, the bottom of the container 8 is provided with a corrosive net having no problem for the growth of the tree seedlings 7 and hard to overflow with the supplementary soil 9 (or is corroded in the short term and is the same as soil). 9), into which the tree seedlings 7 and the supplementary soil 9 are put, and the vegetation pot 6 is made into a unit. It may be arranged in a section.

The tree seedlings 7 include oak, azalea, rat mochi, oak, akamatsu, yabu-sha, naeishigomi,
A mountain maple, a rowan, and the like are arbitrarily selected.
Since they are not subjected to pressure, seedlings of ground cover plants such as ivy and hedera may be inserted.

The reason why the container 8 is made of bamboo is that, after a certain period of time, it corrodes and decomposes to be homogenized with the soil, and in addition, matches well with the surrounding environment. It may be made of a corrosive material made of pulp or pulp, or a corrosion-resistant material such as vinyl chloride resin.

Reference numeral 10 denotes a soil containing herbaceous seeds a, which is composed of an organic compost, a chemical fertilizer, a vegetable fiber, a water retention agent, a soil improving material, etc. It is sprayed on the slope N around the vegetation pot 6.

Herbaceous seeds a include grass seeds, wild grass seeds, flower seeds and the like, including grassy vegetation of rice family. Leaping red fescue, red top, bermuda grass, Kentucky blue grass, etc. are selected.

[0026] The wild grass seed, mugwort, Medohagi, pampas grass, Japanese knotweed or the like is selected, as the flower seeds, gypsophila, cosmos, cornflower, Kawaranadeshiko, Dianthus chinensis, Ookingeisou, yellow daisy, chrysanthemum France,
Saw grass, California poppy, purple hana,
Celosia, teningo and the like are selected.

Slope N by forestation coexisting with herbaceous plants
At the time of greening, first, the slope N is appropriately shaped, and the string-like bodies 1 are arranged vertically and horizontally on the slope N.
A mat 2 made of plant fiber impregnated with a herbicide is dispersed and arranged on the slope N so as to intersect, and the mesh 4 is stretched on the slope N so as to press them.

Then, the vegetation pot 6 is arranged on the mesh body 4 so that the bottom of the container 8 is aligned with the hole 3 of the mat 2, and a mortar gun machine is placed on the slope N around the vegetation pot 6. The soil 10 including the herb seeds a is sprayed by using a spraying machine such as an aero seeder or the like.

At this time, after the mat 2 is dispersed and arranged on the slope N, the string 1 may be arranged on the slope N so that the mat 2 is pressed. The mat 2 may be dispersed and arranged on the mesh body 4 after stretching the mat 4. In this case, in order to prevent the mat 2 from being displaced, the mat 2 may be appropriately fixed by an anchor or the like. preferable.

According to the above-mentioned method, the mat 2 made of vegetable fiber absorbs water such as rainfall and retains water to increase the water retention around the bottom of the vegetation pot 6.
The tree seedlings 7 can withstand the dryness of the surroundings at the early stage of growth and do not die in the summer, and absorb the moisture such as rainfall to retain water. The supporting roots of the root system extend through the holes 3 of the mat 2, and the supporting roots of the horizontal root system also elongate for moisture on the soil surface around the string 1 (see FIG. 4).

Since the string 1 and the mat 2 are corroded over time and become fertilizer, the elongation of the tree roots is increased, and the supporting roots of the horizontal root system, which are particularly important for supporting the tree body, are firmly rooted. Trees grow reliably and soundly, and can withstand severe environmental conditions.

On the other hand, the herbaceous seeds a in the soil 10 sprayed on the surrounding area A of the vegetation pot 6 include the herbicide impregnated in the plant fiber mat 2 including the weed seeds flying here. As a result, growth is suppressed even if germinated (see FIGS. 3 and 4), so that the tree seedling 7 grows without being pressed by the herbaceous plant b, and
Also grows except for the pot peripheral area A, and the tree seedlings 7 are not subjected to pressure by the herbaceous plants b. Therefore, the tree species of the tree seedlings 7 to be introduced does not matter.

Therefore, as the tree seedling 7 does not matter the tree species, for example, if a tree seedling 7 of a local species is selected,
The coexistence of the native species of trees and herbaceous plants achieves excellent greening of the slopes N suited to the area.

The plant fiber mat 2 is provided with a hole 3 in the mat 2 in consideration of facilitating the rooting of the support root of the straight root system and the support root of the vertical root system in the ground. That is, even if the hole 3 is not established, the support root of the straight root system and the support root of the vertical root system pass through the mat 2 and is easily rooted in the ground. Is not a mandatory requirement.

[0035]

As described above, according to the slope revegetation method according to the present invention, the soil has high water retention at the vegetation pot arrangement portion on the slope, and therefore, the tree seedling is not exposed to drying. On top of this, an environment where the soil will become fertile will appear over time, and an environment will appear around the pot that makes it difficult to grow herbaceous seeds. Even if introduced, this will not be under pressure from herbaceous plants,
In addition, they grow healthy without dying in the summer.

On the other hand, the herbaceous seeds contained in the soil will grow except for the pot area, whereby the slope will be reforested by tree seedlings, and the area around the trees will be greened by herbaceous plants. Because of the coexistence of trees and herbaceous plants, the slope returns to a balanced natural landscape in a short period of time, and stable maintenance of the slope is achieved.
In particular, tree seedlings are no longer under pressure by herbaceous plants,
Regardless of the type of tree seedling to be introduced, selecting a native species as a tree seedling will achieve excellent slope revegetation suited to the area.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory diagram showing a greening initial state of a slope.

FIG. 2 is a cross-sectional view showing a greening initial state of a slope.

FIG. 3 is an explanatory diagram showing a greening state of a slope due to afforestation coexisting with a herbaceous plant.

FIG. 4 is a cross-sectional view showing a greening state of a slope.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... String-like body, 2 ... Plant fiber mat, 3 ... Hole, 4 ... Net-like body, 6 ... Vegetation pot, 7 ... Tree seedling, 10 ... Guest soil, a ...
Herbaceous seeds, A: surrounding area of vegetation pot, N: slope.

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-8-246467 (JP, A) JP-A-63-268816 (JP, A) JP-A-9-170236 (JP, A) JP-A-6-268 197676 (JP, A) JP-A-54-132305 (JP, A) JP-A-2-144413 (JP, A) JP-A-56-50255 (JP, U) JP-A-5-35801 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) E02D 17/20

Claims (4)

(57) [Claims] Claims: 1. A plant fiber string and a soil on a slope.
With laying meshwork for spraying, the vegetation pot and Ma Tsu preparative trees seedlings mat to cover around the bottom of the vegetation pot, and as the mat crosses the string-like body
After placement in a dispersed state on the slope and, greening method of slope, characterized in that blowing soil dressing comprising herbaceous seeds on slopes of vegetation pot circumferential region. To 2. A later placed on slopes between Tsu bets, if it is sprayed with herbicide at the site, so as to impregnate the herbicide to the mat
The method for revegetating a slope according to claim 1, wherein 3. A string made of plant fiber and soil on a slope.
With laying meshwork for spraying, the plant fiber mats impregnated with a vegetation pot and herbicides trees seedlings,
So that the mat covers around the bottom of the vegetation pot, and
After the mat is disposed in a state of being dispersed in the slope so as to intersect the string-like body, the slope, characterized in that blowing soil dressing comprising herbaceous seeds on slopes of vegetation pot peripheral zone Greening method. 4. The mat has a hole facing the bottom of the vegetation pot.
The slope greening method according to any one of claims 1 to 3 , which has been established .