WO2012018041A1

WO2012018041A1 - Material for greening dry area and method for greening dry area using same

Info

Publication number: WO2012018041A1
Application number: PCT/JP2011/067759
Authority: WO
Inventors: 晃宏奥谷; 明久金田
Original assignee: 小松精練株式会社
Priority date: 2010-08-06
Filing date: 2011-08-03
Publication date: 2012-02-09
Also published as: JP6043186B2; JPWO2012018041A1

Abstract

The present invention provides a material for greening a dry area, which enables the growth, without withering, of a plant that is planted even in a dry area, for example, a desert, an increase in such dry areas being observed all over the world, and which therefore contributes to the greening of the dry area; and a method for greening a dry area using said material. The material for greening a dry area comprises a sheet-type porous ceramic member having continuous holes. The method for greening a dry area comprises perpendicularly and horizontally laying in the ground the sheet-type porous ceramic members having continuous holes.

Description

Arid land greening material and method for greening arid land using the same

The present invention relates to a greening material for dry land such as deserts and a method for greening a dry land using the same.
This application claims priority based on Japanese Patent Application No. 2010-177191 filed in Japan on August 6, 2010, the contents of which are incorporated herein by reference.

Currently, it is said that deserts and other dry lands continue to expand everywhere in the world because of low rainfall, excessive logging of rainforests, excessive grazing of livestock, excess It is said that slash-and-burn agriculture, environmental pollution by acid rain, and a large amount of groundwater pumping.

Under such circumstances, in Japan, there are concerns about the increase in the arrival of yellow sand due to the expansion of deserts in China and the food crisis accompanying population growth on a global scale, and greening of dry land is desired.
Therefore, various methods for greening arid land are being studied.

For example, there is a known method for greening a deserted land in which water-absorbing agents composed of hydrophobic particles to which a water repellent agent is added and a polymer compound are buried in the ground to suppress the amount of water in the ground (patent) Reference 1).
A desert greening method is also known in which blocks obtained by compressing and forming soil, organic materials, fertilizer nutrients, soil improving materials, etc. are buried in the ground (Cited document 2).

JP-A-6-113673 JP2004-305086

However, the methods described in

Patent Documents

1 and 2 are assumed to be because sufficient effects cannot be obtained, but at present, new greening methods for dry land are demanded by countries having dry land. ing.

Therefore, the present invention provides a dry land greening material using a method different from the above-described conventional technique and a dry land greening method.

In order to solve the above-mentioned problems, one aspect of the dry land greening material according to the present invention is composed of a porous ceramic member having communication holes. By using this, dryness of plants can be suppressed and dry land can be greened.
Furthermore, in one aspect of the dry land greening material of the present invention, the ceramic member may be a plate-like material. Thereby, the greening performance of the excellent dry land can be exhibited.

Furthermore, one aspect of the greening method for dry land according to the present invention is to embed a porous ceramic member having communication holes in the ground. By using this method, it is possible to suppress plant death and green the dry land.
Moreover, in one aspect of the greening method for dry land according to the present invention, the depth of the ceramic member embedded in the ground is preferably 40 cm or more. By using this method, it is possible to exhibit excellent greening performance in dry land.
Moreover, in one aspect of the greening method for dry land according to the present invention, the depth of embedding the ceramic member in the ground is preferably equal to or greater than the depth having moisture in the ground.

Furthermore, in one aspect of the dry land greening method of the present invention, the ceramic member may be embedded in the vertical direction. By using this method, it is possible to exhibit excellent greening performance in dry land.
Furthermore, in one aspect of the dry land greening method of the present invention, the ceramic member may be embedded in the horizontal direction. If this method is used, the greening performance of the dry land which was excellent can be exhibited.
In one aspect of the dry land greening method of the present invention, the ceramic member may be a plate-like material. By using this method, more excellent greening performance in dry land can be exhibited.

According to the dry land greening material according to the present invention and the dry land greening method of the present invention, the dry land can be greened by suppressing the death of plants in the dry land.

1 is a perspective view schematically showing a partition state of a water tank in a dry land greening test 1. FIG. Fig. 2 is a photograph substituted for a drawing showing the situation after planting of clapia in the dry land greening test 1 (about 2 months later). FIG. 3 is a perspective view schematically showing the arrangement of ceramic members and the planting position of clapia in

zones

1 and 2 in the dry land greening test 2. FIG. 4 is a photograph substituted for a drawing showing the situation after 7 weeks of planting of clapia in the dry land greening test 2.

Hereinafter, the dry land greening material and the dry land greening method according to the embodiment of the present invention will be described.

(First embodiment)
The dry land greening material of the present invention is a porous ceramic member (hereinafter also referred to as a ceramic member) having communication holes. A porous ceramic member having a communication hole has pores having a pore diameter of 1 mm or less, those in which these pores are communicated, and those having a longest diameter exceeding 1 mm and pores having a diameter of 1 mm or less. It may be a thing. A hole in which a hole having a longest diameter exceeding 1 mm and a hole having a longest diameter exceeding 1 mm communicate with each other may be included.

If there is no communication hole, the effect of preventing plant death cannot be exhibited, and even if it has only pores having a pore diameter exceeding 1 mm, the effect of preventing plant death may be insufficient.
From the viewpoint of preventing plant death and promoting plant growth, a ceramic member having pores with a pore size of 1 mm or less is preferred, and a pore size of 1 nm or more is preferred. More preferably, the pore diameter measured by the mercury injection method is 100 μm or less, more preferably 10 μm or less in terms of median pore diameter. Preferably, the pore diameter measured by the mercury injection method is 1 nm or more in terms of median pore diameter.

The shape of the ceramic member is a lump with a diameter of about 5 mm to 5 cm, a plate with a side length of about 5 cm to 200 cm, a thickness of about 1 cm to 20 cm, a diameter of about 4 cm to 50 cm, and a length of 5 cm to 200 cm. Although columnar objects, such as a cylinder of a grade and a prism, etc. are mentioned, it is not specifically limited. Plates are preferred from the viewpoint of preventing plant death in dry land and promoting plant growth.

The reason why it is preferable to use such a ceramic member is that there may be moisture about 50 cm below the ground surface even in a dry land such as a desert. However, plants usually die so far that they do not reach their roots. Even if a plant grown to some extent is replanted, it will die as well.
Therefore, by embedding the ceramic member of the present invention to a depth having moisture, the water passes through the holes communicating with the ceramic member due to capillary action and is sucked up to near the ground surface, and moisture is absorbed from the surface of the ceramic member. By supplying it to the soil, we believe that it will prevent the planted plants from withering and increase the survival rate.

Moreover, in the case of a plate-shaped object, in order to plant a plant seedling etc., you may have the hole penetrated from the surface of a plate-shaped object to the back surface.
Furthermore, when using a plate-shaped object, when water is dropped from one of the front or back surface of the plate-shaped object, the surface has water absorption performance and the absorbed water diffuses to the opposite surface. Those having a faster rate of diffusion in the cross-sectional direction than the rate at which they are made are preferred from the viewpoint of preventing plant death and promoting plant growth.
The front surface and the back surface are the portions that have become the front surface and the back surface when the plate-like material is sintered, and the cross section is a surface formed by the thickness of the plate-like material existing between the front surface and the back surface (four sides) ).

The reason why such a plate-like material is particularly preferable is not clear, but in dry land such as a desert where the environment is high temperature and low humidity, the evaporation of moisture from the surface of the plate-like material is suppressed. Water and moisture such as moisture are retained in the interior, and the ability to transport water and moisture in the plate is improved. Water such as moisture and moisture from underground water veins in dry areas such as deserts The plant can grow by absorbing water (dew) generated by a small amount of rain in dry areas such as deserts, temperature differences between daytime and nighttime, and slight moisture in the sand. It is speculated that by releasing a minimum level of moisture little by little from the surface of the plate-like material, plant death is suppressed and plant growth is promoted.

Further, the saturated water content of the dry land greening material of the present invention is preferably 30% or more. 40% or more is more preferable, and 50% or more is more preferable. From the viewpoint of suppression of plant death, a higher saturated water content is preferable, but when used as a plate-like material, 100% or less is preferable from the viewpoint of workability during handling. If it exceeds 100%, the strength of the plate may be insufficient when it is handled.

Next, an example of the manufacturing method of the dry land greening material of this invention is given.
First, there is a method in which cast iron slag is kneaded with clay and sintered at 900 ° C. to 1200 ° C. The dry land greening material obtained by this method has a pore of 1 mm or less and a pore diameter of a major axis of more than 1 mm to about 30 mm, and a communication hole in which these communicate with each other.

Further, a method of kneading clay, diatomaceous earth and cast iron slag and sintering at 900 ° C. to 1200 ° C. can be mentioned. The dry land greening material obtained by this method has a communicating hole, and has more pores of 1 mm or less derived from diatomaceous earth than those not containing diatomaceous earth, which is preferable from the viewpoint of retention of moisture.

Further, a method of kneading clay, diatomaceous earth and organic sludge and sintering at 800 ° C. to 1100 ° C. can be mentioned. The dry land greening material manufactured by this method has communication holes, and the hole diameter is substantially 1 mm or less. Compared to those obtained by the above two methods, there are more pores and this is preferable from the viewpoint of strength.

Further, a method of kneading clay, diatomaceous earth, organic sludge, and slag and sintering at 900 ° C. to 1200 ° C. can be mentioned. The dry land greening material obtained by this method can increase the water content by increasing the pores with a pore diameter of more than 1 mm, compared with those not containing the slag.
About said compounding component, you may add other components, such as a fluidizing agent and a pigment other than what is described. Moreover, diatomaceous earth does not need to be contained about the said mixing | blending component. Specifically, a method of kneading viscosity, organic sludge and slag and sintering at 900 ° C. to 1200 ° C. can be mentioned. The dry land greening material obtained by this method has reduced pores derived from diatomaceous earth compared to those containing diatomaceous earth as described above, but has pores of 1 mm or less derived from organic sludge, and a preferred form as described above. It is.

What knead | mixed components, such as the above clays, can be shape | molded using a type | mold, and can be shape | molded using an extruder. From the viewpoint of productivity, an extruded product is preferable. When manufactured using an extruder, slag blended is formed by orienting the slag in the extrusion direction and laminating horizontally elongated holes in the thickness direction by sintering. Also, a ceramic member having a shape in which slag is oriented in the stretching direction by rolling and the horizontally long holes are similarly laminated in the thickness direction is obtained.
In addition, the ceramic member may be formed into an arbitrary size and shape and fired, or may be cut into an arbitrary size and shape after firing.
The ceramic member improves the water absorption speed by shaving the surface. In addition, by cutting the surface of the ceramic member, plant roots can easily enter the ceramic member, preventing plant death and promoting plant growth.

Next, a method for greening a dry land using the dry land greening material of the present invention will be described.
The dry land greening method of the present invention is carried out by embedding a porous ceramic member having communication holes, which is the dry land greening material of the present invention.

The depth of the embedding of the porous ceramic member having the communication hole is not less than the depth of moisture in the ground, more preferably not less than the depth of the water vein in the basement of the dry land. Is preferred. More specifically, it is preferable to embed a depth of about 40 cm to 150 cm underground because it often has water veins in a dry area such as a desert, such as about 50 cm to 100 cm. From the viewpoint of workability, it is about 40 cm to 100 cm underground. It is good to embed to the depth. The depth of the burying is preferably about 50 cm to 100 cm underground, more preferably about 60 cm to 100 cm underground, and further preferably about 70 cm to 100 cm underground.
When “the depth of the embedding of the ceramic member in the ground is 40 cm”, it means that a hole of 40 cm is dug from the ground surface and the lower end of the ceramic member is at a depth of 40 cm from the ground surface.

Examples of the shape of the ceramic member include a lump, a column, and a plate as described above.
Moreover, as a method of embedding, a method of embedding the ceramic member in the vertical direction is preferable. Lumps, columns, and plates are embedded in the vertical direction so that the area of the surface formed by the vertical ceramic member is larger than the area of the surface formed by the horizontal ceramic member.
In addition to block-like objects, a plurality of columnar objects and plate-like objects are used, for example, the front and back surfaces of the plate-like object are overlapped, the cross-sections are overlapped, and the front surface (back surface) and the cross-section are alternately overlapped. And you may embed so that the area of a perpendicular direction may become large.

The reason why it is preferable to embed such a ceramic member is that moisture may be present about 50 cm below the ground surface even in a dry land such as a desert as described above. However, plants usually die so far that they do not reach their roots. Even if a plant grown to some extent is replanted, it will die as well.
Therefore, by embedding the ceramic member of the present invention to a depth having moisture, the water passes through the holes communicating with the ceramic member due to capillary action and is sucked up to near the ground surface, and moisture is absorbed from the surface of the ceramic member. By supplying it to the soil, we believe that it will prevent the planted plants from withering and increase the survival rate.

As the shape of the ceramic member when the ceramic member is embedded in the vertical direction, the plate-like material suppresses the death of the plant, which is preferable from the viewpoint of promoting the growth of the plant.
A preferred method of embedding the plate-like object in the vertical direction is to embed it upright so that the front and back surfaces of the plate-like object are substantially vertical.
By doing in this way, the root of a plant can extend deeply along a plate-shaped object, a death can be suppressed, and a plant can grow.

The reason why such an effect can be obtained is not clear, but as described above, water such as water existing in the water veins and moisture such as moisture near the water veins, the surface, back surface and back surface of the ceramic member under the ceramic member embedded in the vertical direction. Moisture such as water and moisture is absorbed from the cross section, passing through the inside of the ceramic member while suppressing the release of water and moisture from the front and back surfaces of the ceramic member, and close to the surface of dry land such as deserts. It is assumed that moisture can be supplied not only to the inside and surface of the plate-like object, but also to sand in the vicinity of the plate-like object.

As an embedding method, the ceramic member may be embedded in a horizontal direction. The embedding depth is preferably about 0 cm to 10 cm.
Where there is no groundwater, a ceramic member may be buried at a depth of about 40 cm to 150 cm underground, and water supplied from a pipe or the like may be retained to prevent plant death and promote plant growth. .

As described above, the shape of the ceramic member when embedding the ceramic member in the horizontal direction includes a lump, a pillar, and a plate, but the plate suppresses plant death and promotes plant growth. This is better than the point of view. In particular, it is preferable to have a hole penetrating from the front surface to the back surface of the plate-like material for planting.

The reason why it is preferable to embed a ceramic member in the horizontal direction is not clear, but by embedding a plate-like object in the horizontal direction, the sand underneath is protected from the strong sunlight during the day, and the temperature rise of the sand is suppressed. It is speculated that it may prevent evaporation of moisture from the roots and sand of plants near the surface of the earth. In addition, since rain and artificially supplied moisture are less likely to evaporate from the surface of the ceramic member, the moisture is supplied to the sand under the ceramic member for a long period of time to suppress plant death and promote plant growth. I guess that.

It is also preferable that the ceramic member plate is embedded in the vertical direction and the ceramic member plate is embedded in the horizontal direction. More preferably, the ceramic member embedded in the horizontal direction is disposed on the upper part of the ceramic member embedded in the vertical direction, and more preferably, the upper cross section of the ceramic member embedded in the vertical direction is in the horizontal direction above the ceramic member. It may be in contact with the back surface of the embedded ceramic member. When the upper section of the ceramic member embedded in the vertical direction is in contact with the back surface of the ceramic member embedded in the upper horizontal direction, the moisture from the water veins sucked up by the ceramic member embedded in the vertical direction is embedded horizontally. It is thought that it is supplied to the ceramic member.

This makes it possible for the plant to have roots in the horizontal direction and to deepen the roots in the downward direction, to prevent withering and to grow larger.

Hereinafter, the present invention will be described in more detail with reference to examples.
The saturation moisture content of the ceramic member, the confirmation of the communicating holes, the water diffusion state, and the pore diameter were measured by the following methods.

(Saturated water content)
After immersing the sample in water for 60 minutes, the mass was measured (saturated mass). The saturated water content was calculated from the following formula.
Saturated water content (mass%) = [(saturated mass−absolute dry mass) / absolute dry mass] × 100

(Confirm communication holes)
The sample was immersed in water and sufficiently cut to absorb water. The cross section was observed to confirm the communication holes in the ceramic member. When moisture was evenly distributed and retained inside the ceramic member, it was determined that the ceramic member had communication holes. When moisture did not spread in the ceramic member, each hole was independent, and it was determined that the communication hole was not formed or the communication hole was not formed sufficiently.

(Water absorption, diffusion state)
Cut the plate of ceramic member into a plate with length and width twice as long as its thickness, place it horizontally so that the surface is on top, and approximately at the center of the surface, Water was dripped at a rate of 10 ml per minute, and the water absorption state on the surface and the state of leakage on the back and side surfaces were observed and judged. Rather than splashing water on the surface of the ceramic member to which water has been dripped, it is judged that the ceramic member absorbs water in the ceramic member as "having water absorption performance", and the side surface is wet compared to the back surface. When the state was observed fast, it was determined that the speed at which the absorbed water diffused in the cross-sectional direction was faster than the speed at which the absorbed water diffused in the back surface direction.

(Check hole diameter)
Measurement was performed by a mercury injection method (Autopore 9420: Micromeritics) to determine the median pore diameter. Further, when the longest hole portion was visually determined to be 1 mm or more, the length was measured using an object difference having a minimum scale of 0.5 mm.

Example 1
10% by mass of activated sludge (discharged from the wastewater treatment facility of Komatsu Seiren Co., Ltd.) through agglomeration / dehydration process, 55% of cast iron slag (amorphous slag pulverized product produced in the manufacturing process of ductile cast iron), A mixture of 30% clay (produced in Gifu Prefecture) and 5% diatomaceous earth (powdered with a moisture content of 5% from refractory bricks produced in the Noto area) is cylindrical using a screw extrusion vacuum kneader. , Cut and developed into a flat plate.

Next, what was rolled using a roller rolling facility was irradiated with far infrared rays, dried, and then the moisture content was reduced to 2% or less with a hot air dryer at a temperature of 180 to 200 ° C., and then 1000 ° C. using a roller hearth kiln. Baked in. Next, the side surface was cut to obtain a plate-shaped dry land greening material made of a ceramic member having a length of 1 m, a width of 1 m, and a thickness of 40 mm.
Furthermore, the obtained ceramic member can be cut into an arbitrary size as necessary and used as a dry land greening material. Moreover, in the dry land greening test 1, the ceramic member was used by grinding the surface by about 1 mm with a grinder. In the dry land greening test 2, the ceramic member was used without cutting the surface.
The performance of the obtained ceramic member was as follows.

Saturated water content: 50%
Confirmation of communication hole: It can be determined that the water is evenly distributed and retained in the ceramic member, and that the communication hole is provided.

Water absorption and diffusion state of water: Since water was absorbed from the surface of the ceramic member, it was confirmed to have water absorption performance. Further, wetting of the side surface (cross section) was confirmed before the back surface. Therefore, it was confirmed that the absorbed water has a faster diffusion rate in the cross-sectional direction than the diffusion rate in the back surface direction.

Confirmation of hole diameter: It was confirmed that elongated holes having a length of 1 to 2 cm and a thickness of 0.5 to 1 mm in the horizontal direction were layered in the thickness direction. The pore diameter measured by the mercury injection method was 1.1 μm in terms of median pore diameter.

Next, the following test was performed in order to confirm the effect of the greening method of the dry land using the obtained ceramic member.
(Dry land greening test 1)
In a transparent acrylic water tank with a length of 45 cm, width 45 cm, and depth 48 cm, a vinyl chloride pipe was placed upright so as to almost reach the bottom of the water tank so that water could be supplied to the bottom of the water tank (water veins in dry land) Assumption). Next, a glass plate was used, and an interval of about 2 cm was provided from the bottom of the water tank (for water supply), and the left and right sides of the water tank were separated.

A plate of ceramic members having a length of 35 cm, a width of 20 cm, and a thickness of 4 cm was installed so that one of the two water tanks was further divided into two equal parts along the short side (vertical direction).
Next, assuming dry land sand, shell fossil soil (obtained from Nihonkai Mining Co., Ltd.) was placed up to about 5 cm above the water tank, and the ceramic member was embedded in the vertical direction.

Furthermore, the vertical plate 22 cm, the horizontal 22 cm, the thickness 4 cm, and the center so as to cover the surface of one shell fossil soil of the portion partitioned by embedding the glass plate and the plate member of the ceramic member in the vertical direction. A ceramic material plate with a hole penetrating from the front surface to the back surface with a diameter of 10 cm is installed (horizontal direction), and a shell fossil is buried on the plate material to a thickness of about 1 cm. did. It arrange | positioned so that the upper side surface (cross section) of the ceramic member installed in the perpendicular direction may contact | connect the back surface of the plate-shaped object of the ceramic member embed | buried in the horizontal direction.

Next, assuming a water vein in a dry land, 4 l of water was supplied from the vinyl chloride pipe to the bottom of the water tank.
In addition, two fluorescent lamps (Plantorx 40W, for plant viewing / cultivation, manufactured by Toshiba Lighting & Technology Co., Ltd.) were attached as artificial light sources at a position about 20 cm above the water tank.

Next, zone 1 is an area where the ceramic member is embedded in each surface in the horizontal and vertical directions, zone 2 is an area where the ceramic member is embedded only in the vertical direction, and zone 1 is a place where the ceramic member is not embedded. The area divided by the glass plate and facing each other was zone 3, and the area divided by the zone 2 and the glass plate and faced by zone 4 was planted, and each of the seedlings of krapia, which is an improved variety of Iwadare grass, was planted. Each zone was given water at 100 cc once a day for the first 3 days after planting.

Three weeks later, when I checked the growth of Clapia,
Zone 1 was as alive as when Krapia planted.
In zone 2, as in zone 1, it was as alive as when Krapia planted.
In zone 3, the clapia was almost withered, except for some.
In zone 4, as with zone 3, the clapia was almost withered except for a part.
One month later (about two months after planting), when zone 1 and zone 2 were observed, Krapia had white flowers.

(Dry land greening test 2)
The above fossil shell fossil soil is laid down to a depth of 1m in the vinyl house, and the fossil shell fossil soil after the depth of about 50cm is wet, and the fossil shell fossil soil above it is regarded as a dry geological place. A test was conducted.

A hole having a length of 100 cm, a width of 100 cm, and a depth of 60 cm was dug, and two holes of 50 cm, a width of 50 cm, and a thickness of 4 cm were placed in the vertical direction to divide the holes in half.
The dug hole was backfilled with fossil shellfish soil to the extent that the upper cross section of the ceramic member placed upright appeared.

Next, the ceramic member having a length of 45 cm, a width of 90 cm, and a thickness of 4 cm was arranged in the horizontal direction so as to contact the upper cross section of one of the two ceramic members arranged upright.
The ceramic member arranged in the horizontal direction is provided with two holes penetrating from the front surface to the back surface having a diameter of 10 cm for planting clapia.
Next, fossil shell fossil soil was spread so that the ceramic members arranged in the horizontal direction were covered by about 1 cm to form the following areas.

Zone 1 is the area where the ceramic member is embedded in each surface in the horizontal and vertical directions, zone 2 is the area having the ceramic member embedded only in the vertical direction, and zone 3 is the area where the ceramic member is not embedded, In addition, 2 seedlings of Clapia seedlings, improved varieties of Iwadare grass, were planted in Zone 1 and

Zone

2 and 4 in Zone 3 respectively. Each zone was given water at 100 cc once a day for the first 7 days after planting.

Seven weeks later, when I checked the growth of Clapia,
In Zone 1, the planted Prapia grew greatly, and the two strains overlapped to form a Krabia carpet, with many white flowers. Further, the roots spread in the horizontal direction, and the roots that reached the vicinity of the ceramic member embedded in the vertical direction grew deep along the ceramic member.

In Zone 2, one Krapia was growing as well as Zone 1, while the other was growing, but about one-quarter of the growth of one. The flowers were attached together. Further, the roots did not spread as much as zone 1, but those that partially reached the vicinity of the ceramic member embedded in the vertical direction grew deep along the ceramic member.

In Zone 3, Clapia is in a state where several stalks extend radially, as if looking for a place with water. Compared to Zone 2, Clapia is less dense and inferior. Met. The root tension was poor.

The dry land greening material according to the present invention is useful for greening dry land such as deserts. It is also useful for revegetation of various dry areas including sandy areas with poor water retention capacity other than deserts.

DESCRIPTION OF SYMBOLS 1 Water tank 2, Glass plate 3, Ceramic member 4 embedded in the vertical direction, Ceramic member 5 embedded in the horizontal direction, Clapia 6, Hole for Clapia planting

Claims

A dry land greening material comprising a porous ceramic member having communication holes.
2. The dry land greening material according to claim 1, wherein the ceramic member is a plate-like material.
A method for greening a dry land in which a porous ceramic member having communication holes is buried in the ground.
The method for greening a dry land according to claim 3, wherein a depth of the ceramic member embedded in the ground is 40 cm or more.
The method for greening a dry land according to claim 3 or 4, wherein a depth of the ceramic member embedded in the ground is equal to or greater than a depth having moisture in the ground.
The method for greening a dry land according to any one of claims 3 to 5, wherein the ceramic member is embedded in a vertical direction.
The method for greening a dry land according to any one of claims 3 to 5, wherein the ceramic member is embedded in a horizontal direction.
The method for greening a dry land according to any one of claims 3 to 5, wherein the ceramic member is embedded in the vertical direction, and the other ceramic member is embedded in the horizontal direction.
The method for greening a dry land according to any one of claims 3 to 8, wherein the ceramic member is a plate-like material.