JPH1162A - Adjusting method of growth of tree and dual structured container used in the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply adjust planting load of a tree planted on a rooftop. SOLUTION: The method consists of providing a dual structured container consisting of a cylindrical inner container 5 in which the tree 2 is planted, having plural openings 4 on the side wall allowing the roots 3 of the tree 2 to pass through, and a cylindrical outer container 7 which is extrapolated to the outside of the inner container 5 keeping the predetermined space, having plural openings 6 on the side wall allowing the roots passed through the openings 4 of the inner container 5 to pass through, and after laying the obtained dual structured container 7 underground, the roots 3 between the inner container 5 and the outer container 7 are cut according to the growth of the tree.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for suppressing the growth of a tree planted on a roof or artificial ground, and a double-structure container used in the method.

[0002]

2. Description of the Related Art When trees are planted on the roof for the purpose of rooftop greening, etc., the load at the time of planting is set so as to satisfy the law on the roof load. On the other hand, weight reduction by weight increase is performed by fertilization, transplantation, transfer to a container or the like, or pruning of the above-ground part.

[0003]

However, fertilization,
In the adjustment of weight loss due to transplantation, transfer to a container, etc. or pruning of the above-ground part, the work of fertilization, transplantation, transfer to a container, etc. or pruning of the above-ground part is troublesome. Since the growth rate of the tree cannot be suppressed as it is, there is a disadvantage that it is difficult to adjust the planting load.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a tree growth adjusting method capable of easily adjusting a planting load and a double-structure container used in the method. And

[0005]

According to a first aspect of the present invention, there is provided a method for regulating tree growth, wherein a tree is planted, and a plurality of openings through which a root of the tree can pass are provided on a side wall. A cylindrical inner container, and a cylindrical outer container having a plurality of openings that are externally inserted into the inner container at a predetermined interval and through which a root that has passed through the opening of the inner container can pass. Preparing a double-structure container having: and burying the double-structure container in the soil, and then cutting a root between the inner container and the outer container according to the degree of tree growth. It is characterized by.

According to a second aspect of the present invention, there is provided a double-structured container in which a tree is planted, a cylindrical inner container having a plurality of openings in a side wall portion through which the roots of the tree can pass, and a predetermined distance between the inner container. A cylindrical outer container having a plurality of openings through which the roots that have passed through the openings of the inner container can pass.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an overall perspective view of a double-structured container used in a tree growth controlling method according to an embodiment of the present invention, and FIG. 2 is an explanatory cross-sectional view for explaining the tree growth controlling method.

First, the double-structure container 1 will be described. The double-structure container 1 is formed in a tapered cylindrical shape whose diameter gradually decreases downward, and a tree 2 is planted therein.
An inner container 5 having a plurality of openings 4 on the side wall through which the roots 3 of the tree 2 can pass, and a tapered cylindrical shape which is gradually reduced in diameter downward and is spaced apart from the inner container 5 by a predetermined distance Root 2 that has been extrapolated and has passed through the opening 4 of the inner container 5 on the side wall
And an outer container 7 having a plurality of openings 6 through which the water can pass.

The inner container 5 and the outer container 7 are both made of a material which does not decompose naturally even when buried in the soil, such as plastic, pottery or porcelain, or a metal which has been subjected to a rust-proof treatment. A bottom plate 8 is provided at the bottom of the outer container 7, and the opening 4 of the inner container 5 and the opening 6 of the outer container 7 are arranged at the same position.

When the tree 2 grows after the double-structured container 1 having such a configuration is buried in the rooftop soil, the roots 3 of the tree 2 close the opening 4 of the inner container 5 and the opening 6 of the outer container 7. It passes through to the soil and absorbs moisture and nutrients in the soil. Then, the root 3 between the inner container 5 and the outer container 7 is cut in accordance with the degree of growth of the tree 2, whereby the nutrients absorbed by the root 3 are controlled to suppress the growth of the tree 2, and Adjust the planting load.

When cutting the root 3, if the inner container 5 is rotatable, the inner container 5 is rotated with respect to the outer container 7 to cut the root 3, or the inner container 5 cannot be rotated. In the case of a size or a square shape, a knife, a saw or the like is inserted between the inner container 5 and the outer container 7 to cut the root 3.

As is apparent from the above description, in this embodiment, the root 3 between the inner container 5 and the outer container 7 is cut to suppress the growth of the tree 2 and adjust the planting load. Therefore, the planting load can be easily adjusted.

Further, since the soil moisture can be absorbed from the roots 3 of the trees 2 extending to the soil through the opening 4 of the inner container 5 and the opening 6 of the outer container 7, a plurality of double-structured containers can be used. Even when buried in the soil, only water management of the soil outside the container is sufficient.

In the above-described embodiment, the case where the bottom plate 8 is provided only at the bottom of the outer container 7 is taken as an example. However, the bottom plate is used when the double-structured container 1 is installed, removed, or replaced. This is necessary, and therefore, the bottom plate may be provided only at the bottom of the inner container 5 or at each bottom of the outer container 7 and the inner container 5.

In the above embodiment, the case where the double-structured container 1 is installed on the roof is taken as an example. However, the present invention is not limited to this, and the double-structured container 1 is installed on an artificial ground or other place. Needless to say, this may be done.

[0016]

As is apparent from the above description, according to the present invention, by cutting the root between the inner container and the outer container, the growth of trees is suppressed and the planting load is adjusted. As a result, the effect of easily adjusting the planting load can be obtained.

Further, since water and nutrients of the soil can be absorbed from the roots of the tree that has passed through the opening of the inner container and the opening of the outer container and extended into the soil, a plurality of double-structured containers are buried in the soil. However, the effect is obtained that only water management of the soil outside the container is sufficient.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a double-structured container used in a method for controlling tree growth which is an example of an embodiment of the present invention.

FIG. 2 is an explanatory cross-sectional view for explaining a tree growth regulating method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Double structure container 2 ... Tree 3 ... Root 4 ... Opening 5 ... Inner container 6 ... Opening 7 ... Outer container

Claims (2)

[Claims] 1. A cylindrical inner container in which a tree is planted and which has a plurality of openings in a side wall portion through which the root of the tree can pass,
A cylindrical outer container having a plurality of openings that are externally inserted into the inner container at a predetermined interval and that have a plurality of openings on the side walls through which the roots that have passed through the openings of the inner container can pass. Preparing a container, burying the double-structured container in the soil, and then cutting a root between the inner container and the outer container according to the degree of tree growth, wherein the tree growth is regulated. Method. 2. A cylindrical inner container in which a tree is planted and which has a plurality of openings in a side wall portion through which the root of the tree can pass,
A cylindrical outer container having a plurality of openings that are externally inserted into the inner container at predetermined intervals and that have a plurality of openings on the side walls through which the roots that have passed through the openings of the inner container can pass. And a double structure container.