JP2001128569A - Bag for transplanting tree - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag for transplanting a tree, capable of keeping a medium in an amount sufficient for taking a root and growing the transplanted tree, effectively preventing the medium from being dried, and having effective mulching effects. SOLUTION: This bag A for transplanting the tree has a flat bag shape having opening 30 at the upper surface side, and comprises an upper surface side part A' composed of a mat-shaped material 10 comprising a biodegradable fiber material, and a lower surface side part A" composed of a sheet-shaped material 20 comprising a biodegradable woven or knitted fabric.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a cutting slope having a small amount of active soil, a volcanic effluent deposit area in which soil improvement is required, a degraded land such as a construction site, and a variety of trees on a target ground such as a slope. The present invention relates to the provision of a tree-planting bag that can be effectively implanted.

[0002]

2. Description of the Related Art At the time of planting various trees, if the ground to be planted has sufficient soil for growing tree species, planting holes of a form convenient for tree planting are provided in the planted ground. In addition, necessary soil and fertilizer were applied to this, and various kinds of trees were planted.

[0003] However, in the case of tree cutting on a cut slope having no planting soil required for growing such trees, or in degraded land or sloping land with little topsoil suitable for growing trees, the ground to be planted is not suitable. On the other hand, a knitting fence was provided, and the soil was formed on the fence, or the sprayed soil was used to form a tree planting ground, or a sandbag was piled to plant trees.

[0004]

The technique of providing such a knitting fence and planting the soil on the fence is not enough to make the soil sufficient for the survival and cultivation of the planted trees. However, such planting requires a lot of labor and is not suitable for planting trees at low cost.

[0005] Further, in the formation of planting soil by spraying a visitor's soil on a cut slope, etc., the rooting of planted trees,
It is difficult to bring the amount of soil required for cultivation to the planting target surface, and when planting trees without sufficient soil, poor planting due to drying of the planted trees occurs. There was a defect. Furthermore, many sandbags are made of a non-degradable, biodegradable resin such as a vinyl resin, which pollutes the environment.

Further, in the method of planting trees using a sandbag and a medium filled in the sandbag, there is a problem that the sandbag surface is drastically dried and the planted trees die due to the drying. was there.

In planting such a tree, it is necessary to apply a so-called mulching process to suppress the growth of herbs around the planting while the tree grows to a certain height. In each of the conventional methods, it is necessary to separately perform such mulching processing together with the soil by these methods.

The present invention is to provide a tree-planting bag which secures a medium sufficient for the survival and growth of planted trees, effectively prevents drying of the medium, and has an effective mulching effect. is there.

[0009]

According to the first aspect of the present invention, there is provided a flat bag having a mouth on an upper surface, and the upper surface portion is biodegradable. Characterized in that the lower surface side portion is a sheet-like material made of a biodegradable woven or knitted fabric, and a mat-like material made of the above fibrous material.

[0010] In the tree-planting bag constructed as described above, when the medium is packed into the bag and used for tree planting, a medium sufficient for the survival and growth of the planted tree is effectively contained in the bag. In addition, the drying of the culture medium in the bag can be effectively prevented, and the drainage of the planted tree from the lower surface side portion of the bag can be effectively prevented without rotting the root of the planted tree. The root of the hair grows without difficulty, and the tree-planting bag used for the planting is not biodegraded with time and does not adversely affect the environment.

In the planting of a planting tree using the planting bag having such a configuration, it is possible to plant trees with relatively low cost and good viability.

[0012] In the planting of a planting tree using the planting bag having the above structure, the germination of herbs around the planting tree until the planting tree reaches a required height, Growth can be effectively inhibited, and there is no need for a separate mulching treatment.

[0013] In order to achieve the above object, the tree-planting bag according to the second aspect may be configured such that the pair of mat-like bodies made of the mat-like material are placed on one side of the tree-planting bag according to the first aspect. A sheet-like body made of the above-mentioned sheet-like material is attached to the lower surface side of the mat-like body provided side by side so as to be overlapped on the part side, and the peripheral side part of the sheet-like body is provided side by side. A tree-planting bag characterized by being sewn to the peripheral side of a mat-shaped body.

In addition to the above features, the tree-planting bag thus configured has a feature that the tree-planting bag that is easy to manufacture and easy to handle can be manufactured and provided at low cost.

In order to achieve the above object, the tree-planting bag according to claim 3 is the same as the tree-planting bag according to claim 2, wherein the pair of mat-like bodies are rectangular with substantially the same dimensions. It is a bag for tree planting characterized by this.

According to the tree-planting bag constructed as described above, the mouth of the tree-planting bag is folded in such a manner that the pair of mats are folded so as to stand up on each other, in accordance with the above-mentioned features. It can be in an open state, and the medium and the like required for planting trees can be easily packed in the tree-planting bag by a small number of hands.

According to another aspect of the present invention, in order to achieve the above object, the tree-planting bag according to claim 4, the weight of the mat-like material in the tree-planting bag according to claim 1, 2, or 3 is set. Is 1 per square meter at a thickness of 10 mm
It is a bag for tree planting characterized by being not less than kg and not more than 3 kg.

According to another aspect of the present invention, there is provided a tree planting bag according to any one of claims 1, 2, 3, and 4, wherein A tree planting bag characterized in that the thickness of the shaped material is 10 mm or more and 15 mm or less.

In the tree-planting bag constructed as described above, in addition to the above-mentioned features, the tree planted with the tree-planting bag is most effective in drying the medium packed in the tree-planting bag. The planting with the planting bag is the most effective in preventing the planted plant from effectively germinating in the peripheral part of the planted tree. It can be effectively prevented over the period required for the proper growth.

In order to achieve the above object, the tree-planting bag according to claim 6 may be replaced with the tree-planting bag according to claim 1, 2, 3, 4 or 5. ,
The sheet-like material is a Hessian cloth, which is a tree-planting bag.

According to the tree planting bag configured as described above, in addition to the above-described features, the tree planting bag configured has sufficient handling strength and the tree planted using the tree planting bag. Growth of the root system, particularly, extension of the root system into the ground where the tree-planting bag is installed is not hindered.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, tree planting bags according to typical embodiments of the present invention will be described in detail.

FIGS. 1 to 11 show a tree-planting bag A according to a first typical embodiment of the present invention.
FIG. 1 shows the tree-planting bag A according to this embodiment as viewed obliquely from above, and FIG. 2 shows this tree-planting bag A as viewed obliquely from below, with a part thereof broken. I have.
In FIG. 3, the tree-planting bag A is connected to the opening edge 30 of the mouth 30 thereof.
The cross section is shown in a direction orthogonal to a. In FIG. 4, the periphery of the tree-planting bag A is shown in an enlarged cross-sectional state. FIG. 5 shows an example of a state in which the planting bag A is filled with the medium C, and FIG.
Are shown in perspective views, respectively, showing still another example of the state in which is filled. 7 to 9 show a series of states in which the planting tree D is planted using the planting bag A in a schematic cross-sectional state. In FIG. 10, the planting of the planting tree D is performed. The inserted state is shown in FIG. 11 in a further enlarged sectional view.

FIGS. 12 to 18 show a typical tree planting bag A according to a second embodiment of the present invention. FIG. 12 shows a tree planting bag A according to this embodiment. 13 is viewed from obliquely above, and FIG. 13 shows the tree-planting bag A in a state in which a part of the bag is cut away from obliquely below. FIG. 14 shows the tree-planting bag A in a cross section in a direction perpendicular to the opening edge 30a of the mouth 30. FIG. 15 shows the periphery of the tree-planting bag A in an enlarged cross-sectional state. I have. FIG. 16 shows an example of a state in which the medium C is filled in the tree-planting bag A when viewed obliquely from above. In FIG. 17, the planting tree D is planted using the tree-planting bag A. In FIG. 18, the state in which the planting tree D is planted is shown in a cross-sectional state. FIG. 19 shows the stem hypertrophy growth and the stem hypertrophy growth rate of a planted tree in a tree planting experiment example using a tree planting bag A according to a typical embodiment and another planting comparative example. Things.

The tree planting bag A according to the typical embodiment will first be specifically described with reference to the tree planting bag A according to the first embodiment shown in FIGS.

The tree-planting bag A shown in FIGS.
The ground that is not suitable for planting various trees due to the balance with planting soil, etc., for example, various cut slopes that do not have effective planting soil, volcanic eruptive deposits that require soil improvement,
Effectively secures planting soil that allows good planting trees D to survive and grow on degraded lands such as the site of reclaimed land, so that the planting soil can be greened. For example, it is effectively used for revegetation on a sloped land with less effective planted soil. The tree-planting bag A according to this embodiment has a flat bag shape provided with a mouth 30 on the upper surface side, and moreover, the upper surface side portion A ′ of the tree-planting bag A.
Is a mat-shaped material 10 made of a biodegradable fiber material, and a lower surface side portion A ″ of the tree-planting bag A is a sheet-shaped material 20 made of a biodegradable woven or knitted fabric.

In the tree-planting bag A constructed as described above, a medium C composed of various components and the medium C mixed with fertilizers and the like are packed into the bag A, and this is put on a predetermined ground B to be planted. On the other hand, the lower part A ″ of the tree-planting bag A is placed in contact with the planting bag A, and the planted tree D
Is used so as to plant the planted tree D. When the planted tree D is used for planting, a medium C sufficient for planting and growing the planted tree in the planting bag A is effectively used. Can be secured. In addition, there is no residual rainwater or the like in the tree-planting bag A, and at the same time, drying of the medium C in the tree-planting bag A is effectively prevented. A convenient tree planting environment can be created. In addition, an environment in which the roots of the planted tree D grow without difficulty from the lower surface side portion A "of the tree planting bag A toward the planting target ground B of the tree planting bag A is created and used for the planting. The configuration is such that the planting bag A obtained is biodegraded with time and does not impair the environment around the planting.

In the planting of the planting tree D using the planting bag A having such a configuration, the planting is relatively inexpensive.
In addition, it is possible to plant trees with good vigor.

When planting the planted tree D using the planting bag A having the above configuration, the herbage around the planted tree D is maintained until the planted tree D reaches a required height. The germination and growth of the species can be effectively prevented, and there is no need to separately apply a mulching treatment.

The tree-planting bag A according to the embodiment is
The upper surface side portion A 'is a mat-like material 10 made of a fiber material decomposed by the action of microorganisms. Such a mat-shaped material 10 is typically made of a fiber material composed of one or more natural fibers that are biodegradable, a fiber material composed of one or more kinds of artificial fibers that are biodegraded, It is composed of a fiber material composed of one or more kinds of natural fibers and one or more kinds of artificial fibers which are biodegradable.

The mat-like material 10 is further typically obtained by defibrating wood or waste wood chips or the like by a mechanical or chemical treatment method in which the chips are defibrated by a defibrator or a refiner. Fibers, especially
A fiber obtained by defibrating wood mainly composed of softwood and hemp fiber are mixed in a weight ratio of 4 to 6, and are formed into a felt-like shape in which they are entangled with each other by needle punch entanglement. What was processed and constituted can be used. The fiber obtained by defibrating the wood or waste wood chips used for the mat-like material 10 preferably has a fiber length of 1 mm to 40 mm, more preferably a fiber having a fiber length of 3 mm to 20 mm. Used. The hemp fiber used for the mat-like material 10 preferably has a fiber length of 5 mm to 150 mm, more preferably a fiber length of 30 mm to 100 mm. In particular, in this typical specific example, the weight of the mat-shaped material 10 is set to be 1 kg to 3 kg per square meter at a thickness of 10 mm. Further, in this typical specific example, the thickness of the mat-shaped material 10 is configured to be 10 mm or more and 15 mm or less. In addition, in order to prevent the germination of light-germinating seeds and to suppress the growth after germination in general weed seeds, it is preferable to use a mat-shaped material 10 having a light-shielding rate of 90% or more, more preferably. Constitutes the tree-planting bag A using the mat-shaped material 10 having a light shielding ratio of 98% or more.

Next, the sheet-like material 20 constituting the lower surface side portion A "is typically made of various biodegradable materials, for example, one or more biodegradable natural fibers. It is composed of yarn, one or more kinds of biodegradable man-made fibers, one or two or more kinds of biodegradable natural fibers, and one or more kinds of biodegradable man-made fibers. Woven or knitted fabric is used.

The sheet material 20 is more typically a coarse packing sheet (commonly referred to as a hemp bag) in which a plurality of appropriately twisted bundles of hemp fibers are woven into warp and weft threads and woven in a plain weave state. Linen fabric material that forms the bag), a so-called Hessian cloth.

The tree-planting bag A having the above-mentioned structure is used in a planting medium such as soil and fertilizer in an amount sufficient for the survival and growth of the planted tree D in the tree-planting bag A. In order to secure C, typically, the size of the flat surface of the flattened planting bag A is approximately 60 cm on its longitudinal side.
~ 70cm, and its short side is approximately 45cm ~ 55cm
The above-described amount of the medium C is accommodated between the upper surface side portion A ′ and the lower surface side portion A ″ in the tree-planting bag A, and the medium is conveniently transported and installed.

The tree-planting bag A having such a configuration is more specifically and typically provided with a pair of mat-like bodies 11, 11;
It can be configured by sewing the mat-like bodies 11 and 11 and the sheet-like body 21 used for attachment.

Mat-like body 1 constituting such a tree-planting bag A
1 is made of the mat-like material 10 configured in a rectangular shape, and is made of various biodegradable fiber materials, more typically, one or more biodegradable natural fibers. Fibrous material, fiber material composed of one or more biodegradable artificial fibers, fiber material composed of one or more biodegradable natural fibers and one or more biodegradable artificial fibers For example, fibrillated fibers of wood, in particular, fibers of fibrillated wood mainly composed of softwood, and hemp fibers,
A weight ratio of 4 to 6 is mixed, and the mixture is formed into a felt shape which is entangled with each other by needle punch entanglement.

The pair of mats 11 constituting the tree-planting bag A typically has a size of 10 m.
Weight per square meter is 1kg at m thickness
The mat-shaped material 10 weighing not less than 3 kg is provided. Also,
Typically, the mat-shaped material 10 has a thickness of 10 mm or more and 15 mm or less. Further, typically, the light-shielding rate is 90% or more, and preferably, the light-shielding rate is 98% or more, and the mat-shaped material 10 is used. About 3 on short side
It is configured in a rectangular shape of 0 cm to 35 cm.

The sheet-like member 21 provided along the lower surface side of the mat-like members 11, 11
And is typically composed of
Various biodegradable materials, for example, a thread composed of one or more natural fibers that are biodegraded, a thread composed of one or more kinds of artificial fibers that are biodegraded, one or two kinds of biodegradable The sheet-like material 20 made of a woven or knitted fabric composed of a yarn or the like made of one or two or more kinds of artificial fibers that are biodegradable with the above natural fibers, and more typically, The pair of mat-like bodies 11, 11 in which the portions 11b are arranged in an overlapping state with each other.
Is provided with a planar shape having a size to cover the lower surface side of.

A pair of such mat-like mats 1 having a rectangular shape
The pair of mat-shaped members 1 and 11 are arranged such that one side portion 11b along one side thereof is overlapped with each other.
1 and 11 are arranged so as to be located in the same plane, and the sheet-like body 21 is disposed on the lower surface side of the pair of mat-like bodies 11 and 11 arranged side by side, and the mat-like body 11, a sheet-like body 2 disposed in an attached state on the lower surface side
1 is sewn to the peripheral side portion 11a of the mat-shaped bodies 11 and 11 arranged side by side with a relatively thick thread 40 to form a bag-like body as a single piece of sewing. A tree-planting bag A having a mouth 30 therebetween is configured.

The mat member 1 in such a superposed state
The overlapping edge of one side portion 11b, 11b
0, the opening edge 30a of the mouth 30 is provided at a substantially central portion in the longitudinal direction of the tree-planting bag A so as to extend over its short side, and In a state where the tree-planting bag A is in a flat bag shape, one side 11b of each mat-shaped body 11 constituting the opening edge 30a of the mouth 30 is in a state of being overlapped with each other.

Each of the mat-like bodies 11 constituting the tree-planting bag A, when the tree-planting bag A stands up with the opening edge 30a of the opening 30 in the tree-planting bag A upward.
As shown in FIG. 6, the opening edges 30a, 30a are configured to have an overlapping margin that can be separated from each other, and as shown in FIG. 6, the mat-like bodies 11, 11 support each other in a back-to-back state. As described above, each of the mat-like bodies 1 is bent in a state in which the tree-planting bag A is bent in the longitudinal direction and stands upright.
Work such as filling of the culture medium C can be performed along the opening edges 30a of the first and the eleventh.

The tree-planting bag A having the above-mentioned structure is prepared by putting the culture medium C into the tree-planting bag A from the mouth 30 of the tree-planting bag A with the mat-shaped material 10 facing upward. Prepare to plant Tree D.

Medium C to be stored in such a tree-planting bag A
For example, a medium C suitable for planting various planted trees D to be planted using the planting bag A is used. The culture medium C to be stored and used in the tree-planting bag A is a tree-planting ground B on which trees are planted using the tree-planting bag A.
Characteristics, for example, if the tree-planting ground B is soil that is not suitable for planting trees such as a volcanic eruptive sedimentation area where a soil improvement is required, a site of land development, etc. Are used.

The medium C can be used, for example, by excavating topsoil suitable for tree planting at each tree planting site. In addition, the medium C can be used by mixing the soil with the topsoil suitable for tree planting in the planting target area. Further, as the medium C, for example, a mixture obtained by mixing peat moss or coconut fiber with bark compost, for example, mainly containing purified water cake can be used.

The amount of the medium C to be stored and prepared in the planting bag A is an amount corresponding to the planting tree D to be planted in the planting bag A, for example, the planting plant to be planted in the planting bag A. The planting tree D is 30 to 100 cm in height.
In this case, a medium C in an amount of approximately 20 liters to 70 liters is introduced into the planting bag A so as to provide a required covering thickness for the roots of the planted tree D.

A tree-planting bag A prepared by placing a required amount of the medium C containing the required fertilizers and the like in this manner.
Is placed on the target tree-planting ground B, and the target planting tree D is planted there.

Here, as the planting tree D to be planted in the planting bag A, various trees corresponding to each planting ground B are selected and planted.

In the planted tree D, for example, vegetation that survives in balance with a certain artificial factor, that is, so-called compensated vegetation, or recovery when the artificial factor disappears is theoretically predicted. From among vegetation with potential ability, so-called tree species of latent natural vegetation, and vegetation that naturally grows without being affected by humans, so-called tree species of natural vegetation, the characteristics of each planted ground B and It can be selected and used so as to correspond to the planting purpose.

The planting tree D to be planted and used in the planting bag A corresponds to the purpose of planting the planting tree D.
For example, the tree planting is performed on the ground B to be planted by selectively using one or more of a deep-rooted tree species, a shallow-rooted tree species, and an intermediate-type tree species.

The planted tree D used for such planting
Typically uses cultivated seedlings. As a tree used for such tree planting, more typically, a so-called pot seedling cultivated in a vinyl pot can be used as a tree to be planted.

The specific tree planting using the tree planting bag A is performed by selecting the plant tree D to be planted in accordance with the characteristics of the ground B to be planted and the purpose of tree planting. A tree planting bag A having a shape and a size is selected, and a medium C to be filled in the tree planting bag A is selected. The tree planting bag A prepared here is placed on the ground B to be planted. A required amount of the culture medium C is put into this using a scoop E, and the sheet material 20 is placed on the ground B to be planted.
The lower surface side portion A ″ is contacted with the installation target ground B, and the direction of the mouth 30 is set to a predetermined direction. Next, the opening edge 30a of the tree planting bag A is set. The mouth 30 is opened so as to be separated from each other, and, for example, the root portion Da of the planted tree D from which the vinyl pot has been removed is positioned on the culture medium C in the planting bag A from the opening 30 and The medium C is further inserted into the tree-planting bag A using the scoop E so that the part Da has a sufficient covering thickness, and the root part Da of the planted tree D is sufficiently inserted into the medium C by the inserted medium C. The mouth 30 of the planting bag A is closed so as to be buried, and the mating material 10 constituting the upper surface side portion A ′ of the planting bag A causes the planting tree D to be buried.
The planting tree D is planted so as to cover the root of the plant.

The planting bag A in which the planting tree D has been planted in this way is fixed to the planting ground B using a pile or a peg 50 as necessary, or the planting bag A is placed on the surface of the planting bag A. The tree-planting bag A is supported at a predetermined position as necessary by stretching a rope or the like. In addition, along with the tree planting, irrigation, fertilization, shoring and the like which are usually applied are applied to the planted tree D.

In the illustrated example, the tree-planting bag A
Is an example of planting one planting tree D into the planting bag A. One or more planting trees D are planted into this planting bag A. Tree D
May be implanted simultaneously. Further, in this illustrated example, the cultivated pot seedlings are transferred to the tree-planting bag A.
However, cultivated tree seedlings other than the potted seedlings or trees naturally growing other than the cultivated seedlings may be planted in the tree-planting bag A and used.

Next, the tree-planting bag A according to the second embodiment shown in FIGS. 12 to 18 will be specifically described.

The second shown in FIGS.
The tree-planting bag A according to the embodiment has a mouth 30 on the upper surface side as in the tree-planting bag A according to the first embodiment.
In the form of a flat bag, and the tree-planting bag A
Is formed as a mat-shaped material 10 made of a biodegradable fiber material, and a lower surface side portion A ″ of the tree-planting bag A is formed as a sheet-shaped material 20 made of a biodegradable woven or knitted fabric. The tree-planting bag A according to the second embodiment includes the mat-like bodies 11 and 11.
The sheet-like members 21 provided along the lower surface side of the mat member 11 are arranged such that the one side portions 11b are overlapped with each other.
The mat-like body 11,
The mat-like body 1 is formed at a peripheral portion 11a on the upper surface
The first embodiment is different from the first embodiment in that a rectangular sheet-like material 20 having a size that can be sewn using a thread 40 is used for the first and the first materials 11.
A mat-shaped material 10 made of the same material as the tree-planting bag A according to the embodiment, and a sheet-shaped material 20 made of the same material as the tree-planting bag A according to the first embodiment, and Using the mat-like body 11 made of the mat-like material 10 and the sheet-like body 21 made of the sheet-like material 20, the same shape and size as those of the tree-planting bag A according to the first embodiment are used. It is configured as having.

The tree planting bag A according to the second embodiment is used for planting trees in the same manner as the tree planting bag A according to the first embodiment.

Therefore, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof will be omitted, and the description of how to use them will be omitted.

The sheet 21 forming the tree-planting bag A according to the second embodiment is similar to the sheet 21 forming the tree-planting bag A according to the first embodiment. It has a rectangular shape constituted by the shape member 20, and is typically made of various biodegradable materials, for example, a thread made of one or more kinds of natural fibers to be biodegraded, and a man-made fiber to be biodegraded. Sheet material made of woven or knitted fabric composed of one or more kinds of yarns, one or more kinds of biodegradable natural fibers and one or more kinds of biodegradable artificial fibers 20, and more typically, using a Hessian cloth, is prepared as having a planar shape larger than the planar shape of the tree planting bag A.

Next, a pair of the mat-like bodies 11, 11 each having a rectangular shape are placed on one side 1 along one side thereof.
1b, the pair of mat bodies 11, 11 are arranged side by side so as to be located in the same plane, and the sheet is placed on the lower surface side of the pair of mat bodies 11, 11 arranged side by side. The body 21 is placed in the attached state, and the peripheral side portion 21a of the sheet 21 placed in the attached state on the lower surface side of the mats 11, 11 is arranged in the mat-shaped body 11, 11 arranged as described above. Of the sheet-shaped body 21 at the folded-back portion 21a 'and the mat-shaped body 11 covered by the circumferential side portion 21a. A tree-planting bag A is formed by sewing the peripheral side portion 11a together with a relatively thick thread 40 to form a single piece of sewing.

In the tree-planting bag A constructed as described above, the mat-shaped members 11 are integrally formed so that the peripheral side 11a is wrapped by the peripheral side 21a of the sheet 21. And the mat-like bodies 11, 1
One side 11 which is in a state of being superposed on each other
The space between b and 11b is configured as a mouth 30 in the tree-planting bag A, is used in the same mode as having the same function as in the tree-planting bag A according to the first embodiment, and the mat is used. It has a feature that no fraying occurs on the peripheral side of the body 11.

When the planting tree D is planted on the ground B to be planted using the planting bag A constructed as described above, the mat member 10 and the mat member 10 constituting the planting bag A are used. , The sheet-like material 20 constituting the tree-planting bag A, and the sheet-like material 21 constituting the sheet-like material 20 are each composed of a material which is decomposed by the action of microorganisms. For this reason, the tree-planting bag A that has achieved the purpose of planting the planted tree D is naturally biodegraded over time and does not destroy the environment in the natural world. Further, the mat-like material 10 and the mat-like body 11
Then, the sheet-shaped material 20 and the sheet-shaped body 21 are biodegraded over time so as to become a medium for the planted tree.

The mat material 10 is made of one or more natural fibers that can be biodegraded, a fiber material that is made of one or more biodegradable artificial fibers, a biodegradable fiber material. Or, since it is composed of a fiber material composed of one or more kinds of artificial fibers which are biodegradable with two or more kinds of natural fibers, the mat-like material 10 has a required moisture retention function, The lumber 10 effectively prevents the culture medium C contained in the tree-planting bag A from drying, and the root of the planted tree D planted in the tree-planting bag A by the mat-shaped material 10. Planted tree D planted in the planting bag A, protected from the heat of summer and the cold of winter
Can be effectively survived, and moreover, it can be effectively raised.

The mat-like material 10 is used for the germination and growth of woody plants and herbs from the planting ground B on the peripheral side of the planting tree D using the planting bag A. It functions so as to prevent the planting tree D from exhibiting an effective mulching function for a certain period on the planting surface.

A fiber obtained by defibrating wood or waste wood chips or the like and the hemp fiber of the mat-shaped material 10 are mixed in a weight ratio of 4 to 6, and the mixture is entangled by needle punch. It is made into an intertwined felt and compressed, typically weighing more than 1 kg per square meter at a thickness of 10 mm and 3 k
g of the mat-shaped material 10 or less.
Is typically 10 mm or more and 15 mm or less in thickness, and the mat-shaped material 10 has a light-shielding rate of 90% or more, more preferably 98% or more. A tree planting bag A having a drying prevention function, a heat insulating function, and a mulching function can be configured, and the planting tree D can be more effectively activated and grown to be a biodegradable raw tree planting bag A that can grow. Can be.

In the case of a tree-planting bag formed using the mat-like material having a thickness of less than 10 mm, the effective use of the planted trees planted in the tree-planting bag is achieved. The plant has a difficulty in preventing dryness of the plant, and has a problem with the heat insulation function that can protect the roots of the planted tree planted in the planting bag from heat in summer and cold in winter. Not suitable for planting.

In the planting of the planting tree D using the planting bag A, the mat-shaped material 10 according to the above-mentioned structure constituting the planting bag A is 10 mm or more and 15 mm or more.
If it is configured as having the following thickness, it can provide the tree-planting bag A with a sufficient anti-drying function and heat insulating function required for planting the planted tree D,
It is not necessary to make the thickness of the mat-like material thicker than the above-mentioned thickness.

In the case of a tree-planting bag made of a mat-like material having a thickness of 10 mm and weighing less than 1 kg per square meter, the mat-like material constituting the tree-planting bag is relatively small. It may be decomposed early, and the mulching effect in the tree-planting bag may be lost before the planted tree planted using this tree-planting bag rises sufficiently. Not suitable for use as

If the weight per square meter at a thickness of 10 mm is not less than 1 kg and not more than 3.0 kg, the mat-shaped material 10 according to the above-mentioned structure constituting the tree-planting bag A is constituted by using this. It is possible to provide a mulching function to the planting bag A for a sufficient period of time, and it is not necessary to use a mat-like material that weighs more than 3 kg per square meter at a thickness of 10 mm.

Further, since the sheet material 20 is formed as a sheet material 20 made of a woven or knitted fabric,
There is no inconvenience that rainwater or the like remains in the tree-planting bag A to cause root rot in the planted tree D, and the roots of the planted tree D planted from the sheet material 20 The planting tree A can be easily grown toward the installation ground, and the planting tree D can be easily rooted on the installation ground. In addition, by configuring the sheet-like material 20 by the Hessian cloth, drainage of the tree-planting bag A is further improved, and the growth of the root of the planted tree D through the sheet-like material 20 is further improved. In addition, the strength of the tree planting bag A can be ensured, and the bag strength of the tree planting bag A can be made sufficient.

Further, the tree-planting bag A having the above-mentioned configuration is used for planting soil, fertilizer and the like in a sufficient amount in the tree-planting bag A so as to be necessary for the survival and growth of the planted tree D. Medium C
It is possible to plant trees such as cut slopes that do not have sufficient soil suitable for cultivation and growth of planted trees D, volcanic eruption sedimentation sites that require soil improvement, and lands. In a degraded land that is not suitable for planting the tree D, it is possible to provide a culture medium C that can effectively take advantage of the planted tree D and grow it.

The tree-planting bag A thus formed into a bag-like shape
The culture medium C is put in the sealed state, and the sheet-like material 20 of the tree-planting bag A is provided so as to be in surface contact with the surface of the ground B to be planted.
Because the planting tree D is planted in the area, it is difficult to secure the medium C continuously, such as a steep slope, or the hard ground where the planting soil flows easily due to rain or the like. Even in the place where the plant C is located, it is possible to continuously secure and provide a culture medium C that is convenient for planting and cultivating the tree D.

Further, in securing and providing the medium C using the tree planting bag A, a required amount of the medium C is applied to the tree planting ground B without being relatively restricted by the ground to be installed. Trees can be easily and continuously secured, and can be efficiently planted with a small number of hands and at low cost.

The flattened tree-planting bag A
The mat-like bodies 11, 11 constituting the tree-planting bag A
When standing upright with the opening edge 30a of the mouth 30 in the tree-planting bag A upward, as shown in FIGS. 6 and 17, the mat-like bodies 11, 11 support each other in a back-to-back state. Since the tree-planting bag A is configured to be able to bend and stand in the longitudinal direction, each of the mat-like bodies 11 and 11 is set in an upright state, and the opening edge 30a is formed.
The medium C can be easily filled into the tree-planting bag A with a small number of hands.

Further, the structure of the tree-planting bag A is arranged so that the pair of mats 11 are located in the same plane, and the mats 11 are attached to the lower surfaces of the mats 11. The peripheral side portion 21a of the arranged sheet-like body 21 is folded back on the upper surface side of the peripheral side portion 11a of the mat-shaped bodies 11, 11 arranged side by side, and the sheet is folded at the folded-back portion 21a '. Peripheral side part 2 of body 21
In the tree-planting bag A according to the second embodiment in which 1a and the peripheral side portion 11a of the mat-shaped body 11 covered by the peripheral side portion 21a are integrally sewn with a thread 40, A tree planting bag A that does not cause fraying on the peripheral side can be easily configured and provided.

"Experimental example" 40% by weight of defibrated fiber of wood
And 60% by weight of hemp fiber are mixed, and the mixture is felted by needle punch entanglement to obtain a mat having a weight of 1.5 kg per square meter at a thickness of 10 mm and a thickness of 10 mm. At the same time, a hemp Hessian cloth is superimposed on one side of the obtained mat in a superimposed state, and sewn on the periphery thereof, and the size is 50 cm × 60 cm.
A tree-planting bag of the size was obtained. In this obtained tree-planting bag,
50 liters of a planting medium obtained by mixing 70% by volume of the local soil and 30% by volume of the soil amendment is filled, and eleven kinds of potted seedlings for tree planting having a height of about 30 cm are prepared as described above. Each one of the planting bags is planted one by one and installed on the ground surface of the degraded mountain area, and the periphery of the planting bag is pressed against the surface of the installation site so that the lower surface of the planting bag is located at the installation site. Trees were planted in close contact with the surface.

[Comparative Example 1] A 15 cm deep and 60 cm diameter was placed on the ground continuous with the surface of the ground where the tree-planting bags according to the experimental example were installed.
m, and 11 kinds of potted seedlings having a tree height of about 30 cm, prepared under the same conditions as in the above experimental example, were planted one by one into each of the planted holes dug. The plants were planted, backfilled with a planting medium obtained by mixing 70% by volume of the local soil and 30% by volume of the land improvement material to plant trees, and a sandbag for mulching was installed.
The sandbags used for this mulching were made of two polypropylene bags having a volume of 37.5 liters, each of which had a capacity of 50 bags.
Fill the culture medium to be cm × 50cm × 15cm,
The two sandbags were placed so as to sandwich the root of the planted seedling from both sides, and a tree planting according to Comparative Example 1 was performed.

[Comparative Example 2] A 15 cm deep and 60 cm diameter was placed on the ground continuous with the surface of the ground where the tree-planting bags according to the above-mentioned experimental example were installed.
m, and 11 kinds of potted seedlings having a tree height of about 30 cm, prepared under the same conditions as in the above experimental example, were planted one by one into each of the planted holes dug. The plants were planted, backfilled with a planting medium obtained by mixing 70% by volume of the local soil and 30% by volume of the land improvement material, and planted according to Comparative Example 2 without mulching.

[Consideration of Experimental Example and Comparative Examples] After planting trees in the experimental examples and comparative examples, about 75 days later,
When the state of the survival was confirmed, none of the trees planted in the experimental example and comparative example 1 died.
Also, among the trees planted in Comparative Example 2, Alaska, Masaki, and Kookauchi maple died, and the others were alive. From the survival situation of the planted trees in this experimental example and each comparative example, the mat constituting the tree-planting bag in the experimental example is about 15 cm thick in the polypropylene bag constituting the comparative example 1. It is presumed to have a drying prevention function and a heat insulation function equivalent to those of a sandbag configured by filling the medium as described above.

Approximately 75 days after planting trees in the experimental example and each comparative example, the stem hypertrophy growth rate and stem hypertrophy growth rate were measured by measuring the diameter of the stem at a height of 10 cm from the ground of the planted tree. I checked. The stem hypertrophy growth amount and the stem hypertrophy growth rate in this experimental example and each comparative example were as shown in FIG. Note that, among the trees planted in this experimental example, Alaska, Masaki, and Kookauchi maple were removed from the measurement target because the tree to be compared in Comparative Example 2 died, and the trees in the experimental example and each comparative example were removed. The stem hypertrophy growth amount and the stem hypertrophy growth rate were confirmed for a total of 24 solids of each kind of tree.

The stem hypertrophy growth rate in this experimental example and each comparative example tended to decrease in the order of the planted tree according to the experimental example, the planted tree according to comparative example 1, and the planted tree according to comparative example 2. Since the soil improvement in the experimental example and each comparative example is performed in the same manner, the experimental example, comparative example 1,
It is presumed that the water retention of soil decreases in the order of Comparative Example 2. In addition, the Hessian cloth on the lower surface side of the tree-planting bag used in the experimental example started to rot, and it was predicted that the Hessian cloth would be decomposed early and turned into soil. In addition, it was confirmed that the mat constituting the tree-planting bag used in this experimental example did not start decay and sufficiently maintained the mulching effect.

In consideration of the comparison between the experimental examples and the comparative examples, the tree-planting bags used in the experimental examples can easily and vigorously plant tree seedlings, and have a favorable growing environment for the planted trees. It was confirmed that the bag was a biodegradable tree planting bag that could bring about.

[0082]

The tree-planting bag according to the present invention has a flat bag shape having a mouth on the upper surface side, and the upper surface portion is a mat-like material made of a biodegradable fiber material. Since the lower surface side portion is a sheet-like material made of a biodegradable woven or knitted fabric, when the medium is packed into the bag and used for tree planting, it is sufficient for the planted tree to take root and grow in the bag. It has the advantage of being able to effectively secure the culture medium, and has no problem that rainwater or the like remains in the bag, and the drying of the culture medium in the bag can be effectively prevented,
The root of the planted tree has the advantage of being able to grow without difficulty from the lower side of the bag toward the installation ground of the bag,
Furthermore, the tree-planting bag used for the planting has the advantage that it is biodegraded over time and does not adversely affect the environment.

The planting of the planting tree using the planting bag having such a configuration has an advantage that the planting can be performed at a relatively low cost and with good viability.

In the planting of the planted tree using the planting bag having the above configuration, the germination of herbs around the planted tree until the planted tree reaches the required height, It has the advantage that growth can be effectively inhibited and there is no need to separately apply mulching treatment.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a tree-planting bag according to a first exemplary embodiment.

FIG. 2 is a perspective view of the same part cut away and viewed from below.

FIG. 3 is a sectional view of the same.

FIG. 4 is a sectional view of an essential part of the same.

FIG. 5 is a perspective view showing an example of a state in which the medium is placed.

FIG. 6 is a perspective view showing another example of a state in which the medium is placed.

FIG. 7 is a cross-sectional view showing a state in which planted trees are inserted into the tree-planting bag.

FIG. 8 is a cross-sectional view showing a state in which the planted trees are put in the bag for planting trees and a culture medium is added.

FIG. 9 is a cross-sectional view showing a state where the root of the planted tree planted in the planting bag is covered with a culture medium to which the root is added.

FIG. 10 is a cross-sectional view showing a state in which the planting tree is planted in the planting bag.

FIG. 11 is an enlarged cross-sectional view of a main part in a state where the planting tree is planted in the planting bag.

FIG. 12 is a perspective view showing a tree-planting bag according to a second exemplary embodiment.

FIG. 13 is a perspective view of the same part cut away and viewed from below.

FIG. 14 is a sectional view of the same.

FIG. 15 is a sectional view of the main part.

FIG. 16 is a perspective view showing an example of a state in which the medium is placed.

FIG. 17 is a cross-sectional view showing a state where the planted tree is put in the bag for planting and a culture medium is added.

FIG. 18 is a cross-sectional view showing a state in which the planting tree is planted in the planting bag.

FIG. 19 is a table of measured values of stem hypertrophy growth rate and stem hypertrophy growth rate of planted trees in an experimental example and each comparative example.

[Explanation of symbols]

 A Tree-planting bag A 'Upper surface side portion A "Lower surface side portion 10 Mat-shaped material 11 Mat-shaped body 11a Peripheral side 11b One side 20 Sheet-shaped material 21 Sheet-shaped body 21a Peripheral side 30 Opening

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tomoaki Kusakabe 1-26 Nishishinjuku, Shinjuku-ku, Tokyo Sumitomo Forestry Greenery Co., Ltd. F-term (reference) 2B024 DA06 DB04 DB04 DB10 DC10

Claims (6)

[Claims] 1. A flat bag having a mouth on an upper surface side, wherein the upper surface portion is a mat-like material made of a biodegradable fiber material, and the lower surface portion is a biodegradable fabric. Or a tree-planting bag, which is a sheet-like material made of a knitted fabric. 2. A pair of mat-like members made of the mat-like material are arranged side by side so as to overlap each other on one side, and a sheet-like material made of the sheet-like material is provided on a lower surface side of the mat-like material provided side by side. The tree-planting bag according to claim 1, wherein a body is attached, and a peripheral side portion of the sheet-like body is sewn to a peripheral side portion of the mat-like body provided side by side. 3. The tree-planting bag according to claim 2, wherein the pair of mat-like bodies are rectangular with substantially the same dimensions. 4. The planting tree according to claim 1, wherein the weight of the mat-like material is 1 kg or more and 3 kg or less per square meter at a thickness of 10 mm. bag. 5. The tree-planting bag according to claim 1, wherein said mat-like material has a thickness of not less than 10 mm and not more than 15 mm. 6. The tree planting bag according to claim 1, wherein the sheet material is a Hessian cloth.