JP4747275B2 - Amamo planting method and planting block - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for planting sea cucumbers on the seabed and a planting block used for planting them.
[0002]
[Prior art]
Amamo is a kind of perennial marine flowering plant inhabiting shallow water and mud area with a depth of 5m or less. It is a monocotyledonous plant similar to rice and wheat. It removes nitrogen and phosphorous, purifies the seawater, and creates a good habitat for young fish.
[0003]
However, seaweed beds where sea lions grow are decreasing year by year due to land reclamation and water pollution. For example, even in shallow waters such as the Seto Inland Sea, the recovery of seaweed beds is screamed, and eelgrass has been planted in various ways as described below.
(A) A method using a biodegradable seeding sheet with artificial seaweed.
(B) A method of moving sea urchin seaweed beds together with muddy sand on the seabed.
(Ii) A method of sandwiching eelgrass seeds and soil in a bottom stabilizer made of steel plate and expanded metal.
(Ding) A method in which seaweed seeds and mud sand are mixed in a mat woven with cotton and nylon and placed on the seabed.
(Ii) A method of directly burying sea lion seeds in the seabed.
(Self) A method of transplanting an Amamo seedling into a collapsible mortar block with a hole in the center.
[0004]
[Problems to be solved by the invention]
Among these planting methods, the method of transplanting eelgrass seedlings into the self-disintegrating block is most preferable in terms of cost, work man-hours, recovery of materials after use, establishment rate, and the like.
[0005]
However, this method has a problem that the sea bream leaves and stems are easily damaged or cut by contact with the inner wall of the hole of the mortar block, which is a hard material, due to ocean currents and waves, resulting in a low growth rate. is there.
[0006]
The present invention was devised in view of these problems, and in the method of transplanting sea cucumber seedlings into a collapsible mortar block, the leaves and stems of the sea cucumber are in contact with the inner wall of the hole of the mortar block and are cut or the like. It is an object of the present invention to provide a planting method capable of preventing and improving the growth rate and a planting block used for the planting method.
[0007]
[Means for Solving the Problems]
First, terms used in the present invention will be described.
A disintegrating mortar block is a mortar block that has the property of dissolving in seawater with time and flowing into a granular state along with the ocean current. The collapsible mortar block is formed of a material that does not pollute the natural environment in the sea.
[0008]
Examples of biodegradable materials that decompose and have flexibility in sea water include natural materials such as cellulose and chitin, polylactic acid, aliphatic polyester, and unvulcanized natural rubber.
[0009]
Chitin is a kind of mucopolysaccharide, which is the main structural component of lower animals, and is naturally biosynthesized in a form combined with protein and obtained by hydrochloric acid extraction of crustaceans. The general formula is
(C ₈ H ₁₃ NO ₅ ) _n
It is.
[0010]
Polyalkylene glycol is a substance obtained by polymerizing alkylene oxide, and is a non-volatile viscous liquid or solid that is soluble in water. Those having a degree of polymerization (as average molecular weight) of 200 to 600 are liquids, and 1,000 or more are solids. The general formula is
_{HO (C m H 2m O)} n H
so,
When m = 1, polymethylene glycol m = 2, when polyethylene glycol m = 3, polypropylene glycol.
[0011]
The present invention will be described with reference to the drawings.
The invention of claim 1 is a planting method in which seedlings of eelgrass 5 are inserted into the holes 2 of the collapsible mortar block body 1 arranged on the seabed sand surface 6. An eelgrass planting method characterized in that a ring-shaped cushion body 3 formed of a material and having high flexibility is fitted, and an amamo 5 is inserted into an implantation hole 4 of the cushion body 3.
[0012]
The invention of claim 2 is a planting method in which seedlings of eelgrass 5 are inserted into the holes 2 of the collapsible mortar block body 1 disposed on the seabed sand surface 6, and is formed of a biodegradable material and is highly flexible. An eelgrass planting method characterized by inserting the eel shell 5 through the implantation hole 4 of the annular cushion body 3 and then fitting the cushion body 3 into the hole 2 of the block body 1.
[0013]
A third aspect of the present invention is the planting of eelgrass according to the first or second aspect, wherein the biodegradable material is a lactic acid-polyalkylene glycol-citric acid copolymer resin or an unvulcanized natural rubber. Is the method.
[0014]
The invention of claim 4 is a planting block used for planting seedlings of sea cucumber 5 on the seabed sand surface 6, and is formed of a collapsible mortar block body 1 having a hole 2 penetrating therethrough and a biodegradable material. This is a planting block of an eelgrass, which is highly flexible and includes a cushioning body 3 which is provided with a planting hole 4 through which a seedling of eelgrass 5 is inserted and fitted into the hole 2 of the block body 1.
[0015]
According to a fifth aspect of the present invention, the biodegradable material according to the fourth aspect of the present invention is an ammo-planting block, wherein the biodegradable material is a lactic acid-polyalkylene glycol-citric acid copolymer resin or an unvulcanized natural rubber. is there.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
First, an embodiment of a sea eel planting method according to the present invention will be described with reference to FIGS. 1 and 2. This is a planting method in which seedlings of eelgrass 5 are inserted into the center hole 2 of the collapsible mortar block 1 disposed on the seabed sand surface 6, and biodegradable between the block 1 and eelgrass 5. An ammo 5 is prevented from coming into contact with the inner wall of the hole 2 of the block body 1 through an annular cushion body 3 made of a material and having high flexibility.
[0017]
By doing so, the leaves and stems of the eel shell 5 are not damaged or cut by the inner wall of the hole 2 of the block body 1. Therefore, the sea eel 5 can be effectively deposited on the seabed sand surface 6.
[0018]
It is noted that the eelgrass 5 may be planted after the cushion body 1 is assembled into the hole 2 of the block body 1 and then inserted into the implantation hole 4 of the annular cushion body 3, or the annular cushion body 3 may be implanted in advance. It can also be performed by assembling the cushion body into the hole 2 of the block body 1 after passing through the insertion hole 4.
[0019]
An embodiment of a planting block according to the present invention will be described. This is a planting block used to plant the seedlings of the eelgrass 5 on the seabed sand surface 6, and is composed of a block body 1 and an annular cushion body 3. The block body 1 is made of a collapsible mortar block, and has a hole 2 formed at the center thereof. In addition, although the hole 2 in this embodiment is one, it can also provide in multiple numbers.
[0020]
The annular cushion body 3 is formed of a biodegradable material and is highly flexible, and has an implantation hole 4 through which a seedling of the sea eel 5 is inserted in the vertical direction. And it fits in the hole 2 of the block body 1, and the Amamo 5 is prevented from contacting the inner wall of the hole 2 of the block body 1. By providing the annular cushion body 3, damage and cutting of the eelgrass 5 can be prevented in advance, and good growth can be promoted. In addition, the number of the implantation holes 4 is not limited.
[0021]
The height of the annular cushion body 3 attached to the hole 2 of the block body 1 is not particularly limited. It is better to install.
[0022]
In the present invention, the block body 1 is in a granular state and flows away with the ocean current when the sea eel 5 is reliably deposited on the seabed sand surface 6, and the annular cushion body 3 is also decomposed by seawater and microorganisms. Disappear. Therefore, the block body 1 and the annular cushion body 3 do not remain in the seaweed bed where the eelgrass 5 grows.
[0023]
This biodegradable material can be pre-mixed with fertilizers and chemicals that promote the growth of the sea cucumber 5, or mud sand on the seabed sand surface 6 and environmental remediation substances that remove contaminants in the seawater. By doing so, it is possible to promote the smooth growth of eelgrass 5 and promote the purification action of seawater, and the seaweed basin mainly composed of eelgrass 5 can effectively recover the natural environment of the lost sea. .
[0024]
As the biodegradable material, any of natural materials such as cellulose and chitin, polylactic acid, aliphatic polyester, and unvulcanized natural rubber may be used, but flexibility, degradation rate control in seawater, Alternatively, a lactic acid-polyalkylene glycol-citric acid copolymer resin and an unvulcanized natural rubber are particularly preferable because a heat-unstable drug can be mixed. That is, by using such a material, it is highly flexible, decomposes at an appropriate rate in seawater, and disappears when the sea eels 5 are deposited on the seabed sand surface 6. Furthermore, a chemical such as a growth promoter. Can be incorporated without losing its efficacy.
[0025]
Moreover, the shaping | molding method of the annular | circular shaped cushion body 3 is not limited, For example, it can be set as foam molding, non-foaming molding, or fibrous molding.
[0026]
【Example】
A hole 2 having an inner diameter J = 50 mm is formed through the central portion of a collapsible mortar block 1 having a width F = 150 mm; a length G = 150 mm; and a height H = 50 mm. = outer diameter M = 50 mm strong that the planting hole 4 penetrates set of 20 mm, lactic thick n = 3 mm - polypropylene glycol _{[HO (C 3 H 6 O)} n H ] - citric acid copolymer resin annular The cushion body 3 was fitted. Then, the seedlings of eelgrass 5 that had passed about 2 months from germination were inserted into the planting holes, and then placed in a circulating seawater tank with sand laid on the bottom for 3 months thereafter.
[0027]
After three months, the stalks and leaves were observed after being pulled up from the seawater tank. As a result, no flaws due to contact with the block body 1 were observed on the leaves and stems of the eelgrass 5. Thereby, it has confirmed that the annular | circular shaped cushion body 3 blocked | prevented the contact with the inner wall of the hole 2 of the block body 1, and the Amamo 5 reliably. Moreover, the extension of the rhizome was also confirmed. Therefore, it was confirmed that the sea bream 5 can be satisfactorily grown on the seabed sand surface 6 by the planting method using the planting block according to the present invention.
[0028]
In addition, using the block body 1 of the same shape, sand was put instead of assembling the annular cushion body 3 in the hole 2, and an amamo 5 was planted in the sand, and the experiment was performed under the same conditions as described above. After three months, the Amamo 5 was confirmed to be partially cut and yellowed and damaged by stems due to contact with the inner wall of the hole 2 of the block body 1. Thereby, when not using the annular | circular shaped cushion body 3, it was confirmed again that the eel shell 5 was damaged and the growth was impaired.
[0029]
【The invention's effect】
Both the planting method and the planting block of an ammo according to the present invention are obtained by fitting and assembling a flexible cushion body 3 in a hole 2 of a hard block body 1 made of a collapsible mortar block. Since the seedlings of the eelfish 5 are inserted through the planting holes provided in 3 and placed on the seabed sand surface 6, the eelgrass 5 does not contact the inner wall of the hole 2 of the block body 1 to be damaged. Accordingly, it is possible to promote good growth of the eelgrass 5 and to improve the establishment rate.
[0030]
In addition, by making the biodegradable material into lactic acid-polyalkylene glycol-citric acid copolymer resin or unvulcanized natural rubber, flexibility, control of decomposition rate in seawater, or mixing of heat labile chemicals Therefore, a preferable annular cushion body 3 can be formed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
2 is an exploded perspective view showing a block body and a cushion body of the embodiment shown in FIG. 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Block body 2 Hole 3 Cushion body 4 Implantation hole 5 Amamo 6 Sea bottom sand surface

Claims (5)

  It is a planting method in which seedlings of eelgrass (5) are inserted into holes (2) of a collapsible mortar block (1) placed on the seabed sand surface (6), and a biodegradable material is inserted into the holes of the block An annular cushion body (3) that is formed with a high flexibility and is fitted, and the sea eel is inserted into the implantation hole (4) of the cushion body. It is a planting method in which the seedlings of eelgrass (5) are inserted into the holes (2) of the collapsible mortar block (1) placed on the seabed sand surface (6), which is made of a biodegradable material and is flexible. A method for planting sea cucumber, in which the eel is inserted into the hole (4) of the ring-shaped cushion body (3) and then the cushion body is fitted into the hole of the block body. The planting method of eelgrass according to claim 1 or 2, wherein the biodegradable material is lactic acid-polyalkylene glycol-citric acid copolymer resin or unvulcanized natural rubber.   It is a planting block used to plant seedlings of sea eel (5) on the seabed sand surface (6). It is made of a collapsible mortar block (1) with a hole (2) penetrating it, and a biodegradable material. An eelgrass planting block comprising a cushion body (3) which is formed, is flexible, and has a piercing hole (4) through which an eelgrass seedling is inserted, and is fitted in the hole of the block body.   The linseed planting block according to claim 4, wherein the biodegradable material is lactic acid-polyalkylene glycol-citric acid copolymer resin or unvulcanized natural rubber.

Images