JP4615281B2 - Tree restoration method - Google Patents

Description

  The present invention relates to a method for restoring the tree vigor of a tree whose tree vigor has declined.

If the soil in which the trees are planted is squeezed and consolidated, the roots of the trees will become worse and the vigor will decline. In addition, there is a risk that a tree in which a hollow has been generated in the trunk due to aging of the tree, or a tree in which decay has progressed from the damaged site due to a part of the bark being largely peeled off on the trunk. Such trees are generally considered difficult to recover, and are often discarded.
However, there are many requests for trees that have been carefully nurtured in temples, parks, private residences, etc. to take tree recovery measures and leave the trees. Therefore, conventionally, methods for restoring tree power include a method of loosening solidified soil and improving the soil, a method of allowing adventitious roots to grow at damaged (cavity) portions of the trunk, and the like.

The method for soil improvement is a method for loosening the soil and mixing peat moss for promoting the growth of plant roots into the soil to restore the vigor. Peat moss is a charcoal of accumulated moss in the ground, and has the property of growing plant roots specifically.
Further, for example, a method for causing adventitious roots to grow is to embed fiber peat (peat) in which moisture is sufficiently sucked into the damaged part of the trunk, and then cover the damaged part with a light-shielding and waterproof sheet. Is the method. Peat is a soil that contains a lot of organic matter and is suitable for plant growth (see, for example, Patent Document 1).
JP 2002-315435 A

  However, with the above-mentioned conventional method of restoring the tree (the method of improving soil), it is possible to restore trees with mild symptoms, but it is difficult to restore trees once the tree has declined. There is a problem. In addition, the latter (method for growing adventitious roots) is effective for trees that are dying due to hollowing of the trunk or being damaged, but the soil becomes dense and the roots of the trees are not tight. It is less effective for trees that have become worse and have declined.

  The present invention has been made in consideration of the above-described conventional problems, and can effectively restore a tree that has been soiled and whose tree tension has deteriorated due to poor tree root tension. The aim is to provide a method for restoring the tree.

The invention according to claim 1 is a method for restoring a tree of trees that recovers a tree whose tree has declined, digging out the tree from the soil , exposing the roots of the excavated tree , It is characterized in that wet peat is wound around a single root or a plurality of adjacent roots , and then trees are planted in soil so that the peat is buried.

  Due to these characteristics, the peat nutrients are directly taken from the roots of trees that have declined. Moreover, once it is dug, the soil around the root around which the peat is wrapped is loosened.

  According to the tree vigor recovery method according to the present invention, the tree is dug from the soil, the wet peat is wrapped around the root of the dug tree, and then the tree is planted in the soil so that the peat is buried. , Peat nutrients are taken directly from the roots into the trees that have declined, and once the trees are dug up, the soil around the roots is loosened and new roots are laid around, making the trees more effective Many shoots grow from the trunk of the recovered tree.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a tree vigor recovery method according to the present invention will be described with reference to the drawings.

A tree 1 shown in FIG. 1 is a tree that is said to be difficult to regenerate once it has weakened, and to be difficult to transplant an adult tree, such as an oak tree. The tree 1 has a plurality of roots 2 extending into the soil G, and the root 2 is not tight because the soil G is stepped and consolidated. As described above, the tree 1 with the poor tension of the root 2 is weakened.
In the following, a method for effectively recovering the tree 1 having a decline in tree vigor as described above will be described.

  First, as shown in FIG. 2, the process of excavating the soil G around the root 2 and excavating the tree 1 is performed. Specifically, it is not necessary to excavate all the soil G around the root 2, and excavate the soil G below the trunk 3 of the tree 1 only within a certain range. The range of the excavation range is basically a range of a diameter D2 that is about four times the diameter D1 of the root portion of the tree 1, and may be slightly wider or narrower depending on the type of the tree 1 and the state of the root 2. . At this time, it is desirable that at least the thick part of the root 2 is exposed, and the branched part is exposed as much as possible. And the exposed root 2 is cut | disconnected, the tree 1 is cut | disconnected from the front-end | tip part of the root 2 embed | buried in the soil G, and the tree main body 1 'is taken out from the excavation hole H. Moreover, the upper part of the trunk 3 of the tree 1 is cut out as needed.

  Next, as shown in FIG. 3, a process of winding peat 4 around the root 2 of the excavated tree body 1 ′ is performed. Specifically, the peat 4 is pasted around each of the plurality of cut roots 2, tied with a rope 5 such as a rope or a hemp rope, and the peat 4 covering the root 2 is fixed. At this time, the peat 4 is pasted so as to cover not only the outer peripheral surface of the root 2 but also the cut surface of the cut root 2. Moreover, the peat 4 uses what dampened dry peat or the wet state. Moreover, when the upper part of the trunk 3 is cut off, the cut film 3 is covered with the curing film 6 to protect the cut surface. The curing film 6 protects the cut surface and has a fragility that can be broken when germinated from the cut surface. For example, Parafilm PM-992 is used.

  Next, as shown in FIG. 4, a step of burying the tree body 1 ′ in which the peat 4 is wound around the root 2 in the soil G is performed. Specifically, the tree body 1 ′ is installed so that the root 2 around which the peat 4 is wound is placed in the excavation hole H, and the backfill soil G ′ is put into the excavation hole H to water the tree body 1 ′. Backfill while planting and plant. Since peat 4 exhibits a higher ability to recover tree power under conditions where it is not exposed to light, root 2 around which peat 4 is wound is completely buried in backfill soil G ′ so as to be shielded by backfill soil G ′. Backfill as is done. In addition, the backfilled soil G ′ that has been backfilled is not compacted, but is lightly stepped on so that the roots 2 can be easily stretched. Moreover, it is desirable to fill the soil so as to surround the backfilled soil G ′ and to clear the water basin 7.

  According to the method for recovering the vigor of the tree having the above-described structure, the tree 1 is dug from the soil G, the wet peat 4 is wound around the root 2 of the dug tree body 1 ', and then the tree body 1' is again formed. In order to backfill and plant the soil G in the soil G, the nutrients of the peat 4 are taken directly from the root 2 into the tree body 1 'where the tree has declined, and once excavated, the soil G ( The backfill soil G ′) is loosened. As a result, the nutrients of the peat 4 can restore the tree main body 1 ′, and the new root 2 can be stretched around the loosened backfill G ′, thereby effectively restoring the tree vigor of the tree main body 1 ′. it can. A large number of young shoots grow from the trunk of the recovered tree ', and the tree 1 that has been withering can be revived.

  Next, as a reference example, a method for recovering the tree vigor of the tree 50 when the trunk 51 is aged and a cavity is generated will be described.

  First, as shown in FIG. 5, the boundary portion between a portion where the cavity has been aged (cavity portion 52) and a portion which has not been aged (non-depleted portion 58) is shaved to form a non-depleted portion 58. The process of carving out the layer is performed. Specifically, the groove 59 having a depth reaching the formation layer is formed by cutting along the boundary line between the hollow portion 52 and the non-depleted portion 58. As a result, there is nothing that inhibits rooting, and adventitious roots are rooted from the formation layer of the non-withered portion 58. At this time, the part 52a which has been significantly withered in the hollow part 52 is also scraped off.

  Next, as shown in FIG. 6, a step of winding the peat 53 around the hollow portion 52 is performed. Specifically, wet peat 53 is affixed to the outer peripheral surface of the cavity 52 and tied with a rope 54 such as a rope or hemp rope to fix the peat 53 covering the cavity 52.

Next, as shown in FIG. 7, a step of covering the peat 53 shown in FIG. 6 attached to the cavity 52 with a light shielding material 55 such as black vinyl is performed. Specifically, the light shielding material 55 is wound around the peat 53 and fixed with a rope or a tape.
Finally, as shown in FIG. 8, the cavity 52 covered with the peat 53 shown in FIG. 6 or the light shielding material 55 shown in FIG. 7 is covered with a protective material 56 and tied and fixed by a rope 57 or the like.

  According to the above-mentioned tree tree recovery method, adventitious roots grow in the groove 59, the adventitious root grows and reaches the soil G to become a regeneration stem, and this regeneration stem connects the soil G and the trunk 51a above the hollow portion 52. . As a result, nutrients of the soil G are transmitted to the upper trunk 51a through the regenerated trunk, so that the tree vigor can be recovered, and the decayed tree 50 is supported by the regenerated trunk, and fallen trees can be prevented.

  Simultaneously with the above-described steps, compost and peat moss may be mixed with soil around 50 trees for soil improvement. As a result, when the adventitious root that grows in the hollow portion 52 grows and reaches the soil G, the soil G becomes loosened, so that the root 2 is further stretched and the tree body 1 ′ is effectively restored. Can be made.

  As mentioned above, although embodiment of the tree vigor recovery method based on this invention was described, this invention is not limited to above-described embodiment, In the range which does not deviate from the meaning, it can change suitably. For example, in the above-described embodiment, the root 2 is cut when the tree body 1 ′ is dug. However, the present invention may be used for excavating a tree by excavating over a wide range without cutting the root. In the above-described embodiment, the upper part of the trunk 3 is cut, but the present invention does not have to cut the trunk.

  Moreover, in the above-described embodiment, the peat 4 is wound around each root 2, but the present invention may wrap the peat together with a plurality of adjacent roots. Moreover, in the above-described embodiment, the peat 4 is bound and fixed by the rope 5, but the present invention may not be a rope as long as it can be fixed with the peat stuck to the root, for example, hemp May be covered.

  In the above-described embodiment, the excavated tree body 1 ′ is backfilled in the original excavation hole H. However, the present invention does not necessarily need to be backfilled in the same place, and is planted in a different place. You may change.

It is a figure showing the condition before construction for demonstrating embodiment of the tree recovery method of the tree concerning this invention. It is a figure showing the condition of the tree excavation process for demonstrating embodiment of the tree recovery method of the tree concerning this invention. It is a figure showing the condition of the peat winding process for demonstrating embodiment of the tree recovery method of the tree concerning this invention. It is a figure showing the condition of the tree backfilling process for demonstrating embodiment of the tree recovery method of the tree concerning this invention. It is a figure showing the condition of the formation layer cutting process for demonstrating the reference example of the tree vigor recovery method which concerns on this invention. It is a figure showing the condition of the peat winding process for demonstrating the reference example of the tree vigor recovery method which concerns on this invention. It is a figure showing the condition of the shading material winding process for demonstrating the reference example of the tree vigor recovery method which concerns on this invention. It is a figure showing the condition of the protection material winding process for demonstrating the reference example of the tree vigor recovery method which concerns on this invention.

Explanation of symbols

1 Tree 1 'Tree itself (Tree)
4 Peat G Soil G 'Backfill soil (soil)

Claims (1)

A method for restoring a tree to restore a tree whose tree has declined,
Excavate the tree from the soil , expose the roots of the excavated tree , wrap the wet peat around the exposed roots, one by one or a group of adjacent roots , and then peat A method for restoring the tree vigor, characterized in that the tree is planted in soil so as to be buried.

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