JPH08158372A - Vegetation method for slope - Google Patents

Abstract

PURPOSE: To perform the vegetation of a slope by a method wherein trees and plants are permanently reared in a cut soil slope and a rocky slope to facilitate the maintenance and administration. CONSTITUTION: Deep holes 2 are bored in a direction crossing a cut soil slope 1 almost at right angles and separately, young trees 3 reared by using a tubular growing frame so that a root 4 thereof grows in the shape of the hole 2. The root 4 of the rearing yong tree is inserted in the hole 2 of the slope togetherwith mold and culturing is effected in such a way that the interior of the hole 2 forms rearing soil for the young tree.

Description

Detailed Description of the Invention

[0001]

[Industrial application] The present invention enables planting plants on steep slopes caused by cut soil in road construction and construction works, and on rocky slopes where the ground is not suitable for vegetation. Regarding the slope greening method.

[0002]

2. Description of the Related Art The conventional greening of slopes of natural grounds has the primary purpose of preventing weathering and erosion of the slopes. Therefore, in places with stable soil and rock, the steep cut slopes are greened. Often not targeted. However, in recent years, there has been an increasing demand for improving the environment and landscape even on slopes of natural ground, and for that reason, greening or restoration of green spaces has come to be required for all artificial slopes. However, at present, as shown in FIG. 5, embankment of the vegetation base material b on the cut slope a,
The vegetation base material is sprayed by the spraying method, and the plants are germinated and grown in the soil on the slope. However, such a method may cause the soil to slide down due to rainfall, and
It was not suitable for planting trees that required soil thickness.

[0003]

[Problems to be Solved by the Invention] In recent years, where the maintenance of the natural environment and the landscape are all talked about, in the road construction and construction work for constructing objects by changing the natural topography and ecology, greening and green spaces Regeneration is an important issue. Also, regardless of the landscape, trees are many times larger than grasses in terms of air purification capacity and water retention capacity per area, so planting with trees regardless of topography and geology requires planting and reforestation. Has become. In the natural world, vegetation requires soil that retains water and nutrients. Therefore, how to retain the soil and how easy it is to maintain the soil are required on the slope of the constructed land. It is also desirable to be able to plant trees from the surrounding environment. Although there is such a request, it is difficult to stably maintain the soil, which retains the water and nutrients necessary for the vegetation of plants, on the slope by the conventionally known means, and the trees are planted on the slope. There is no known good way to do it. Therefore, the present invention enables to stably fix the soil on the slope, and to enable planting of plants on the soil thus held on the slope, thereby making it possible to green the slope. To do.

[0004]

The present invention achieves the above object in a slope greening method in which vegetation is planted on the cut slope. The method, a deep hole is drilled in a direction substantially perpendicular to the slope, the seedlings of the plant are grown separately so that the roots have the shape of the hole, and the grown seedling is inserted into the hole of the slope together with the cultivated soil. , The holes were used as soil for growing seedlings, and planting of plants was performed. When growing seedlings separately, put the root in a pipe-shaped growth frame by hydroponic or hydroponic cultivation, straighten and grow the root in the shape of the above hole, and easily insert it into the hole on the slope I did it.

Before transplanting seedlings grown by hydroponic or hydroponic cultivation into holes on the slope, cultivated soil is put into a pipe-shaped growing frame to switch from hydroponic or hydroponic cultivation to cultivated soil cultivation,
Then, it is taken out from the growing frame together with the splint that has been put in advance, root-wrapped, and inserted into the hole on the slope. When approaching the time of planting in the hole of the slope in this way, by switching to cultivating soil, the root of the seedling taken out from the growing frame can be inserted into the hole of the slope without damaging the soil of the slope. It is possible to keep good growth of seedlings inside. In addition, the mouth of the hole on the slope was cut open, and a water collecting frame was installed under the hole so that rainwater could be guided to the hole. Therefore, the rainwater flowing on the slope at the time of rainfall is guided not only from the cut-out portion to the hole mouth but also from the water collecting frame.

[0006]

According to the above slope greening method, deep holes are formed in the slope in a substantially vertical direction at appropriate intervals, and the seedlings of the plant are grown to a certain extent by individually growing the seedlings of the plant in a pipe-shaped growing frame. Since the soil is inserted into the hole along with the cultivated soil, the cultivated soil exists in the hole even on the slope, so that the water and nutrients necessary for growing the seedlings can be secured and the planting can be performed. The roots of the seedlings planted in the holes grow radially toward the ground in search of water and nutrients, but when the area around the holes hits hard soil, the roots change direction and grow toward the bottom of the holes.

In the above-mentioned slope greening method, there are cases where planting is performed from the top as the cutting work progresses, and already completed slopes are successively drilled from the bottom, It is also possible to extend the scaffold for drilling by using, and plant it from the top stage and lower it while disassembling the scaffold one by one. Considering the amount of soil required for growing the tree and the foliage overgrowth when growing in the rhizosphere, the shape and size of the holes on the slope, which will be the soil for the seedlings, affect the stability of the slope. It is planned so that it does not reach.

The seedlings to be cultivated are first cultivated by hydroponic or hydroponic culture in a pipe-shaped cultivating frame corresponding to the inner circumference of the hole, and then cultivated soil is put into the cultivating frame for cultivating soil. The seedlings grow well even if they are transplanted into the hole.
In addition, the roots are taken out from the growing frame so that they will not lose their shape along with the splints that have been put in advance, and the roots will be wound as they are.
It can be easily inserted into the hole in the slope without damaging the root. Further, since the cultivated soil for growing the seedlings is put in the holes, the cultivated soil does not slip down even on a steep slope, and is kept in the holes. As for watering the trees planted in the holes on the slope, rainwater is guided to the cut-out part of the hole and the water collecting frame and enters the hole when it rains. In addition, the cut-out portion of the hole mouth retains fallen leaves and the like, which also helps to supply nutrients.

[0009]

EXAMPLE An example of the slope greening method of the present invention will be described with reference to FIGS. Since the slope greening method of the present invention does not have a soil for growing plants on the entire slope, it is a method of greening the slope by covering the slope by growing the branches and leaves planted at a certain interval. is there. Cut slope 1 of natural ground
As shown in FIG. 1, deep holes 2 are drilled at an appropriate interval in a direction substantially perpendicular to the slope 1. The reason why the hole 2 is made substantially perpendicular to the slope 1 is to keep the slope 1 stable without breaking. The holes 2 are for putting soil for growing seedlings of trees used for slope greening, and the shape and size of the holes 2 are determined by the amount of soil required for the seedlings grown in the holes and the rhizosphere thereof. Considering the condition of foliage overgrowth when grown, it is planned not to affect the stability of the slope.

The seedlings 3 of trees that are separately grown grow roots 4 quickly and reasonably by hydroponic or hydroponic cultivation. In that case, the roots 4 are placed in a pipe-shaped growth frame 5 and the roots 4 are grown. The hole 2 is straightened and grown so that it can be easily inserted into the hole 2 on the slope. The growing frame 5 has a shape corresponding to the inner circumference of the hole 2 described above, and when the seedling 3 is planted in the hole 2 on the slope, it effectively grows so that the entire soil in the hole becomes the rhizosphere of the seedling. Let At the time of hydroponic or hydroponic culture of the seedlings 3, as shown in FIG. 2 as an example, a plurality of pipe-shaped growth frames 5 are set up in a cultivation tank 7 filled with a cultivation solution 6,
The roots 4 of the saplings are put in the respective growing frames 5 and grown. Further, a pump 8 is provided in the cultivation tank 7, a cultivation liquid is supplied to the upper part of each growing frame 5 through a hose 9 to circulate, and air is further supplied from a lower end of each growing frame 5 through a hose by a compressor 10. Supply.

When the planting time is approaching at the site of slope greening, cultivated soil is put into each of the above-mentioned hydroponically or hydroponically cultivated growing frames 5 to switch to cultivated soil cultivation. this is,
This is because when the seedlings 3 are later transplanted into the holes 2 on the slope, the seedlings 3 can be favorably grown in cultivated soil. In this case, the splint is put in the growing frame 5 so that the root of the seedling 3 is not taken out later when the root part of the seedling 3 is taken out from the growing frame 5.

When the seedlings 3 cultivated in the growing frame 5 are transplanted into the holes 2 on the slope, the roots of the seedlings 3 are taken out from the growing frame 5 together with the cultivated soil and sprue which have been put in advance. The root winding is applied as it is, and it is inserted into the hole 2 on the slope as shown in FIG. When the root 4 is inserted into the hole 2, it is inserted together with the cultivated soil to be supplemented. In order to allow watering to the root of the seedling 3 transplanted in the hole 2,
A is cut open to construct a cut-out portion 11, and a water collecting frame 12 is installed below the hole mouth 2a. The cut-out portion 11 and the water collecting frame 12 are constructed before transplanting the seedlings 3 into the holes 2, but may be constructed after the transplantation. By performing the construction in this way, at the time of rainfall, rainwater flowing on the slope 1 is guided from the slit 11 to the hole 2a, and the rainwater is guided to the hole 2a by the water collecting frame 12 without flowing downward.
Furthermore, the fallen leaves are retained at the hole 2a to supply nutrients.

[0013]

According to the present invention, a hole is drilled in a direction substantially perpendicular to the cut slope of the ground, and the roots of the seedlings cultivated separately in the pipe-shaped growing frame are inserted into the hole together with the cultivated soil to grow. Permanent and easy-to-maintain greening is possible on steeply cut slopes or rocky slopes, which were considered difficult.
Moreover, because it is possible to plant trees, it can be applied not only at the time of construction, but also to the slopes of quarry sites that were previously abandoned or the slopes for erosion prevention and slopes only for concrete spraying. Become.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state where a seedling is grown on a slope by the slope greening method of the present invention.

FIG. 2 is a cross-sectional view showing a state of hydroponically cultivating a seedling according to the present invention.

FIG. 3 is a cross-sectional view of a state where a seedling according to the present invention is planted.

FIG. 4 is an upper perspective view showing a state where a seedling according to the present invention is planted.

FIG. 5 is a schematic view of a state in which a vegetation base material is sprayed on a cut slope to germinate and grow grass by a conventional method.

[Explanation of symbols]

 1 Slope 2 Hole 3 Sapling 4 Root 5 Growth frame 11 Cut-out part 12 Water collection frame

Claims (4)

[Claims] 1. A slope greening method in which vegetation is planted on the slope of a cut soil, in which a deep hole is drilled in a direction substantially perpendicular to the slope so that the root has the shape of the hole. The method for planting slopes, characterized in that the seedlings are separately grown, the grown seedlings are inserted together with cultivated soil into the holes on the slopes, and plants are planted using the holes as soils for growing seedlings. 2. When the seedlings are separately grown, the roots of the seedlings are put into a pipe-shaped growth frame and hydroponic or hydroponic culture is carried out to straighten and grow the roots in the shape of the hole. The slope greening method according to claim 1. 3. The seedling is cultivated by hydroponic or hydroponic cultivation in a pipe-shaped growing frame, and then cultivated soil is put into the pipe-shaped growing frame to cultivate the seedling. 3. The slope greening method according to claim 1, wherein the slope is taken out from the plant, root-wrapped, and then the root of the seedling is inserted into the hole on the slope. 4. The method according to claim 1, 2 or 3, wherein the mouth of the hole on the slope is widened and a water collecting frame is installed under the hole to guide rainwater to the hole. Slope greening method described.