JP2001098554A - Buried seed sandbag - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To effectively utilize buried seeds and improve the germination rate. An upper space obtained by dividing the inside of a sandbag 1 with a sheet-like water retention material 2 is filled with buried seeds 4, and a lower space is filled with vegetation soil 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to a technical field of a greening method for preserving a local ecosystem in, for example, residential land development and road construction.

[0002]

2. Description of the Related Art Conventionally, slopes generated by residential land development, road construction, and the like have been greened by spraying turf grass, planting seedlings, and the like. However, the use of exotic seeds or seedlings from other regions has the potential to disrupt the local ecosystem (disruption of the gene), which is a problem.

Therefore, in recent years, greening with local seeds has been desired for the purpose of preserving local natural ecosystems. Revegetation with buried seeds is another method of local seed revegetation. The buried seeds are seeds contained in the topsoil, on which seeds of vegetation and trees existing thereon and seeds flying from the surroundings are deposited. When greening using this buried seed,
While preserving local ecosystems, it will be possible to create diverse and early forests. By the way, the conventional revegetation method using buried seeds involves filling the surface soil into a vegetation sandbag and placing it on a revegetation slope.

[0004]

However, in this case, the buried seeds germinated in this case are only the upper layer of the sandbag, and the middle and lower buried seeds are wasted. Also, germination of the buried seeds requires sufficient water, but this condition could not be satisfied.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a buried seed sandbag capable of effectively utilizing buried seeds and improving the germination rate.

[0006]

To this end, the earthen seed sandbag according to the present invention is characterized in that the earthen sandbag is filled with seeds in an upper space obtained by dividing the inside of the sandbag with a sheet-like water retention material, and the vegetation soil is packed in a lower space. And

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of a buried seed sandbag of the present invention, FIG. 1 (A) is a plan view, and FIG. 1 (B).
Is a sectional view.

The sandbag 1 is divided into an upper space having a small thickness and a lower space having a large thickness, and the upper space and the lower space are partitioned by a sheet-like water retaining material 2. The lower space is filled with soil for greening to form a vegetation soil layer 3, and the upper space is filled with buried seeds (surface soil) with a thickness of about 2 to 5 cm to form a buried seed layer 4. The buried seed sandbag 1 having the above-described configuration is set on a slope after water is appropriately contained by watering or the like, and the sandbag is fixed with an anchor or the like. In addition, the character "up" is displayed on the sandbag 1 so that the top and bottom can be recognized.

In the present invention, since the buried seeds are packed only in the upper space, the buried seeds can be effectively used, and there is no initial runoff due to rainwater or the like, and good greening is possible even in bedrock. Become. In addition, sheet-like water retention material 2
Thus, an appropriate amount of water is maintained, and greening is possible even on a slope that is easy to dry.

The vegetation soil layer 3 may contain a soil conditioner or a fertilizer as needed, and the sandbag 1 may be converted to a biodegradable material (natural fiber or biodegradable plastic) depending on the place of use. By making the greenery, it is possible to green the environment and the landscape without sandbags after the greening.

[0011]

As is apparent from the above description, according to the present invention, the buried seeds can be effectively utilized and a suitable amount of water can be retained, thereby improving the germination rate of the buried seeds. be able to. In addition, construction is easy because the soil is simply packed in sandbags and installed on the slope.Furthermore, since the topsoil is put into the sandbags, it germinates in the spring and runs down due to rainwater until it is greened. Can be prevented, and construction can be performed even in winter. And it can contribute to the preservation of local ecosystems and the diversification and early forestation, and the cost can be reduced by utilizing local resources.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a greening method according to the present invention, and FIG.
1A is an overall configuration diagram, and FIG. 1B is a diagram for explaining a greening method of the present invention.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Chiaki Niwa 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Motoyuki Iwahashi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Naoya Sugawara 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Ryo Hayashi 1-2-3, Shibaura, Minato-ku, Tokyo Shimizu Corporation F term (reference) 2B051 AB01 AC02 CB02 CB11 CB29 CB30 2D044 DA01

Claims (2)

[Claims] 1. A buried seed sandbag wherein an upper space in which the inside of a sandbag is divided by a sheet-like water retaining material is filled with buried seeds, and a lower space is filled with vegetation soil. 2. The buried seed sandbag according to claim 1, wherein said sandbag is made of a biodegradable material.