JP4693063B2 - Reed seedling system - Google Patents

Description

  The present invention relates to a reed seedling raising system that grows reed seedlings mainly for transplanting to wetlands such as tidal flats.

  In order to preserve and restore the natural environment, it is expected to create a marine environment such as aquatic plants, wild birds, and seafood by creating wetlands such as tidal flats on the waterside and bring about a good waterside landscape. .

  In order to create a good natural environment in wetlands, it is effective to transplant aquatic plants into the created wetlands. In such a case, a method of collecting a plant from a community of aquatic plants growing in the surrounding area and transplanting it to a constructed wetland is desirable, and a reed is often used as such a plant.

  Reeds are perennials of the grass family that grow in wetlands. From around April each year, buds sprout from the rhizomes to allow the leaves to grow. Later, in winter, the above-ground part withers and the nutrients are stored in the rhizomes for the next year's growth.

  In transplanting reeds, it is considered based on such a cycle. Conventionally, seeds are collected and sown from October to November or planted by raising seeds. It is done by excavating large plants with underground stems in April-October, planting them by cutting the stems from the roots in April-May, and immersing the harvested stems. It was.

  The soaking method is to cut the reed stems from May to August, soak them in water and germinate roots from the stem nodes, then cut the germinated roots shortly and replant them in pots, etc. This is a method of raising seedlings for more than half a year and then transplanting the grown seedlings.

JP-A-10-313715 Japanese Patent Laid-Open No. 10-136771 Japanese Unexamined Patent Publication No. 07-095818

  However, in the method using seeds, the germination rate varies depending on conditions such as soil and climate, and seedlings also take 2 years or more. In addition, it takes a lot of labor and disturbs the harvesting place where reeds grow naturally, which causes a problem that the reproductive environment of reeds is significantly impaired.

  Also, in the method of planting stems, it is said that it is desirable to use reeds growing on land from April to May, but the time limit is limited and reed communities are generally In many cases, it is present in wetlands, and in reality, there was a problem that it was difficult to use reeds on land.

  In addition, in the dipping method, although the labor for collecting is relatively small, not only the work of replanting into a pot is involved, but there is a problem that it takes a period of six months to one year to raise seedlings.

  Although it is possible to use commercially available seedlings, there has been a problem that it is difficult to procure a large amount of these seedlings in terms of cost.

  The present invention has been made in consideration of the above-described circumstances, and an object thereof is to provide a reed seedling raising system capable of securing a large amount of transplantable reed seedlings in a short time.

In order to achieve the above-mentioned object, the reed seedling raising system according to the present invention is characterized in that, as described in claim 1, a germination rooting reservoir capable of storing water and allowing a reed stem to float and stand in the vicinity of the surface of the water. The reed stems germinated and rooted in the reservoir for germination rooting are arranged so that the predetermined seedbed material is laid and water is stretched so that the water level is higher than the top of the seedbed material. The nursery bed, the germination root reservoir and the water supply equipment for supplying water to the nursery bed, and the nursery bed and the water supply equipment so that the water in the nursery bed can be allowed to flow during raising seedlings Is at least one of the above.

In the reed seedling raising system according to the first reference invention, a predetermined nursery material is laid and water is stretched so that the water level is higher than the top of the nursery material, and water is supplied to the nursery bed. When breeding reeds, the reed stems are placed horizontally on the seedbed and the seedlings are raised while supplying water to the nursery.

In this way, the stems of reeds placed on the nursery will germinate and root from the node, grow into rooting materials and grow as seedlings, but here the water in the nursery will flow while raising seedlings Since at least one of the nursery and water supply equipment is configured so that it can be done, the growth of reed is faster than when using the conventional seedling raising method, and transplanting can be done in about 1 to 2 months after the start of seedling raising It becomes a state. This seems to be because sufficient oxygen is supplied to the nursery by flowing the water in the nursery.

  Moreover, since the seedbed material is laid in advance on the seedbed, the step of replanting the pot as in the conventional case can be omitted.

  If water supply equipment can supply water to a seedbed, how to comprise is arbitrary. In addition, it is arbitrary how the water in the nursery is made to flow, and it may be configured to make a nursery by using the step or slope of the terrain and to make it flow naturally. You may comprise so that it may be forced to flow using a pump.

  For example, the water supply facility includes an open-type water storage tank that stores water introduced from a water source such as a river or a lake, and a water supply pipe that communicates the inside of the open-type water storage tank with the inside of the nursery bed. It is conceivable that the nursery bed is configured such that when the water level in the nursery bed exceeds the overflow water level set inside, the water in the nursery bed is drained out of the nursery bed as overflow water.

  If it does in this way, when water led from the water source is stored in the open-type water storage tank, a large amount of oxygen dissolves in the water. And, since water containing a lot of oxygen flows into the nursery bed through the water supply pipe and flows through the nursery bed, oxygen necessary for raising seedlings of reed is sufficiently supplied to the nursery bed. .

  In addition, water exceeding the predetermined overflow level will be drained outside the nursery bed, so that the water in the nursery bed can be made to flow reliably, and the water level of the nursery bed should be kept at a level suitable for the breeding of reeds. Is possible.

  How can an open-type water storage tank be in contact with the air or communicate with the atmosphere so that oxygen can be dissolved in the water at the time of inflow or storage of water? Although it is arbitrary whether it comprises, it is desirable to install in a position higher than a nursery in consideration of the water supply to a nursery. In this case, the water in the seedbed naturally flows due to the head difference between the open water storage tank and the seedbed.

  As long as the water supply pipe communicates with the inside of the open-type water storage tank and the inside of the nursery bed, it may be arbitrarily configured, but a flow rate adjusting valve is provided so that the amount of water supplied to the nursery bed can be adjusted. Is desirable.

  Further, the overflow water may be drained into a river, a lake, a drain, or the like as it is, but instead, it is conceivable to circulate the overflow water to an open water tank.

  Further, the number of nursery beds is arbitrary, but when a plurality of nurseries are provided, a plurality of the nurseries are arranged in series, and among the nurseries, adjacent nurseries are communicated with each other through a communication pipe. The overflow water may flow from the upstream nursery bed into the downstream nursery bed, and the water supply pipe may be communicated with the most upstream nursery bed among the nursery beds.

  If it does in this way, it will become possible to make water in a plurality of seedbeds flow efficiently.

  Any kind of seedbed material can be used as long as it can grow reeds into seedlings. For example, ordinary sand and soil, or soil mixed with fertilizer can be used. The dewatered cake produced by dehydrating the mud or the dredged mud may be used as the nursery material.

  In such a case, the dredged clay or the dehydrated cake produced by dehydrating the dredged mud contains a lot of nutrient salts, so that it becomes a more suitable environment for the growth of reeds, thus promoting the growth of reeds and raising the seedling period. Is shortened more. In addition, dehydrated cakes are usually often used as embankment materials with the addition of a solidifying material, but dehydrated cakes and dredged mud soil without adding a solidifying material are effectively used without being disposed of. It becomes possible.

On the other hand, in the reed seedling raising system according to the present invention, first, the reed germination root reservoir is floated with reed stems and then germinated and regenerated. Cut the stalks short and place the reed stalks on the nursery to raise them. Therefore, only the stems of reeds that have germinated and rooted can be selected and placed on the nursery, so that the nursery can be used efficiently and the efficiency of raising the reed can be improved.

  When the reed stems are allowed to stand and germinate and root, it is desirable that a plurality of reed stems be loosely bundled and floated in water so that the reed stems do not sink into the water.

  Also, when placing germinated roots of reed stems in the nursery, put the reed stems in the nursery material a little so that the roots of the reed will settle on the nursery material and absorb nutrients from the nursery material. Is desirable.

  The germination root reservoir can be constructed in any way as long as it can accumulate water and leave the reed stems floating, but as with a nursery, it supplies water to the germination root reservoir. A water supply facility may be provided, and the water in the germination root reservoir may be flowed with water supplied from the water supply facility.

In order to raise a reed using the reed seedling raising system according to the first reference invention , first, a predetermined nursery material is laid and water is applied so that the water level is higher than the top of the nursery material. Place the reed stem horizontally on the nursery. Next, the seedling is nurtured from the stem of the reed while supplying water to the nursery bed in such a state.

  In this way, the stems of reed placed horizontally on the nursery will germinate and root from the node, grow into rooting materials and grow as seedlings. Therefore, the growth of reeds is faster than in the case of using the conventional seedling raising method, and transplantation is possible in about 1 to 2 months after the start of the seedling raising. This seems to be because sufficient oxygen is supplied to the nursery by flowing the water in the nursery.

  Moreover, since the seedbed material is laid in advance on the seedbed, the step of replanting the pot as in the conventional case can be omitted.

  Any kind of seedbed material can be used as long as it can grow reeds into seedlings. For example, ordinary sand and soil, or soil mixed with fertilizer can be used. A dehydrated cake produced by dehydrating the mud and the dredged mud may be used as a nursery material.

  In such a case, the dredged clay and the dewatered cake produced by dehydrating the dredged mud contain a lot of nutrient salts, which makes the environment more suitable for the growth of reeds, thus promoting reed growth and the seedling period Is shortened more. In addition, dehydrated cakes are usually often used as embankment materials with the addition of a solidifying material, but for dehydrated cakes that do not add a solidifying material and dredged mud that does not undergo dehydration treatment, these are not disposed of, It can be used effectively.

On the other hand, in the reed seedling raising system according to the present invention, before the reed stems are horizontally arranged on the nursery bed, the reed stems are left floating in the vicinity of the water surface of the germination root reservoir in which water is stored. Sprouting and rooting from the reed stem.

  In such a case, first, a reed stem is floated on the germination root reservoir to germinate and root, and then the reed stem is cut short if necessary so that the germinated root is included. The seedlings are placed on the nursery to raise seedlings. Therefore, only the stems of reeds that have germinated and rooted can be selected and placed on the nursery, so that the nursery can be used efficiently and the efficiency of raising the reed can be improved.

  When the reed stems are allowed to stand and germinate and root, it is desirable that a plurality of reed stems be loosely bundled and floated in water so that the reed stems do not sink into the water.

  Also, when placing germinated roots of reed stems in the nursery, put the reed stems in the nursery material a little so that the roots of the reed will settle on the nursery material and absorb nutrients from the nursery material. Is desirable.

  The germination root reservoir can be constructed in any way as long as it can accumulate water and leave the reed stems floating, but as with a nursery, it supplies water to the germination root reservoir. A water supply facility may be provided, and the water in the germination root reservoir may be flowed with water supplied from the water supply facility.

In the reed transplanting method according to the second reference invention, first, the bottom mud of the water area where reeds are growing is dredged, and then the dredged mud soil is dehydrated to produce a dehydrated cake. To do.

  Next, a dehydrating cake is laid as a nursery material, and a nursery bed in which water is stretched so that the water level is higher than the top of the nursery material is provided in the vicinity of the water area, and the reed stems are horizontally arranged on the nursery bed .

  Next, in such a state, the seed is nurtured from the reed stem while flowing water in the nursery bed, and then the reed seedling is transplanted to a wetland such as a tidal flat formed near the water area.

In the method for transplanting reed according to the second reference invention, first, the bottom mud of the water area where reeds are growing is dredged, and then the dredged mud soil is laid as a seedbed material. A seed bed in which water is stretched so that the water level is higher than the top of the water is provided in the vicinity of the water area, and the reed stems are horizontally arranged on the seed bed.

  Next, in such a state, the seed is nurtured from the reed stem while flowing water in the nursery bed, and then the reed seedling is transplanted to a wetland such as a tidal flat formed near the water area.

  In this way, the stems of reed placed horizontally on the nursery will germinate and root from the node, grow into rooting materials and grow as seedlings. Therefore, the growth of reeds is faster than in the case of using the conventional seedling raising method, and transplantation is possible in about 1 to 2 months after the start of the seedling raising. This seems to be because a lot of oxygen is sufficiently supplied to the nursery by flowing the water in the nursery.

  Moreover, since the seedbed material is laid in advance on the seedbed, the step of replanting the pot as in the conventional case can be omitted.

  In addition, since the dehydrated cake and dredged mud used as seedbed materials contain a lot of nutrient salts, the environment becomes more suitable for the growth of reeds, thus promoting the growth of reeds and shortening the seedling period. When preparing a dehydrated cake, it is not necessary to bother adding a solidifying material to ensure a predetermined strength, and it is not necessary to produce a dehydrated cake by dehydrating in the first place.

  In addition, it is possible to perform all operations such as procurement of seedbed materials, installation of nursery beds, raising seedlings of reeds, and transplanting of reeds in the vicinity of the water area where dredging of the bottom mud is carried out. In addition, dehydrated cakes, especially dehydrated cakes without added solidification material and dredged mud, can be used effectively on the spot without being moved to other places or disposed of. In addition to being an economically efficient transplanting method, the cost of dredging can be reduced by omitting the solidification and dehydration processes.

  In addition, since all steps can be performed in the water area where the reed was originally grown on the waterside, there is no concern of changing the reproductive environment of reed, and reed seedling and transplantation can be performed in a large amount in a short time. Become.

  When transplanting reed seedlings, it is conceivable to transport the seedlings together with the surrounding nursery materials.

  In addition, the length of the stem of the reed according to the present invention is arbitrary as long as it includes a knot, and in consideration of easiness of raising seedlings, the degree of growth, etc., or before germination rooting Later, if necessary, it can be appropriately cut to a desired length.

  In addition, the water level in the nursery is also considered so that the water level in the nursery will not adversely affect germination because the stem of the reed is too low and the reed stem is too high and the reed's stem is submerged. What is necessary is just to set suitably so that a water level may become higher than the top edge of a nursery material, for example, setting it as several cm is considered.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a reed seedling raising system according to the present invention will be described with reference to the accompanying drawings. Note that components that are substantially the same as those of the prior art are assigned the same reference numerals, and descriptions thereof are omitted.

  1A and 1B are views showing a reed seedling raising system according to the present embodiment, in which FIG. 1A is a plan view and FIG. 1B is a cross-sectional view taken along line AA in FIG. As shown in the figure, a reed seedling raising system 1 according to the present embodiment is roughly composed of a germination root reservoir 4, a seedbed 2, and a water supply facility 3 for supplying water to the germination root reservoir and the seedbed. It is configured.

  The germination root reservoir 4 is configured so that the water 17 is stored and the reed stem 21 can be floated and left in the vicinity of the surface of the water, as can be seen in the detailed view of FIG. Such a germination root reservoir 4 is formed by excavating the ground 11 into a rectangular shape to form a pit, and a sheet pile 14 is turned around the inner side of the pit to fix it to the support pile 13, and a waterproof sheet 12. Is laid in the pit, and water 17 is stretched in the pit in which the waterproof sheet 12 is laid.

  As is well understood from the detailed view of FIG. 3, the nursery bed 2 excavates the ground 11 into a pit by digging it into a rectangular shape like the germination root reservoir 4, and the earth retaining sheet pile 14 is turned around on the inner side of the pit. Although this is fixed to the support pile 13 and the waterproof sheet 12 is laid in the pit, unlike the germination root reservoir 4, the nursery material is provided at the bottom of the pit where the waterproof sheet 12 is laid. 16 is laid and water 17 is stretched so that the water level is higher than the top of the nursery material.

  The seedbed material 16 may be appropriately selected from ordinary sand and soil, or soil mixed with fertilizer so that the reed can be grown into seedlings.

  Here, in the seedbed 2, a sprout-rooted reed stem 15 is arranged as shown in the figure. However, in setting the water level (depth) in the seedbed, it is too low. Care should be taken so that the seedling 15 will not be adversely affected by the drying of the reed stem 15 or the reed stem 15 being submerged so that the flowing water in the seedbed 2 will not be hindered. For example, it is conceivable that the depth of the reed stem 15 is submerged, specifically several cm.

  The water supply facility 3 communicates the open reservoir 6 for storing water introduced from a river (not shown) as a water source, and the open reservoir, the germination root reservoir 4 and the seedbed 2. In the germination root reservoir 4 and the nursery bed 2, the water supplied from the water supply facility 3 flows.

  The open-type water storage tank 6 is configured with an upper surface open so that the water stored and stored can be in contact with the atmosphere so that oxygen can be dissolved in the water when the water flows in or when the water is stored. As can be clearly seen in FIG. 1 (b), such an open-type water storage tank 6 is installed at a position higher than the seedbed 2 and the germination root reservoir 4, and the head difference between the seedbed 2 and the germination root reservoir 4. The water supply to the nursery bed 2 and the germination root reservoir 4 is smoothly performed by the water pressure due to the height, and as a result, the water in the nursery bed 2 and the germination root reservoir 4 flows naturally. It has become.

  Here, the two nursery beds 2 are arranged in series, and the adjacent nursery beds 2 and 2 are communicated with each other by a communication pipe 7, and the inside of the communication pipe is from the upstream nursery bed 2 (right side in FIG. 1). It is configured such that water flows into the downstream nursery bed 2 (left side in FIG. 1), and among the seed beds 2, the water supply pipe 5 is connected to the upstream nursery bed and is located downstream. A drainage pipe 8 is connected to the nursery bed, and water supplied from the water supply facility 3 flows in the order of the water supply pipe 5, the nursery bed 2, the communication pipe 7, and the nursery bed 2, and through the drainage pipe 8, rivers, lakes, It is designed to be drained into a drain.

  The same applies to the germination root reservoir 4. The water supply pipe 5 is connected to the upstream side and the drain pipe 8 is connected to the downstream side, so that the water supplied from the water supply facility 3 is supplied to the water supply pipe 5. Through the sprouting / reservoir 4 and drained into a river, a lake, a drain, or the like through a drain pipe 8.

  Here, the communication pipe 7 and the drain pipe 8 are bent in a substantially L shape at the upstream end so that the upstream end opening 18 faces vertically upward, as can be seen in FIGS. When the water level of the water 17 stretched on the nursery bed 2 and the germination root reservoir 4 exceeds the upstream end opening 18, the water 17 overflows the upstream end opening 18 and communicates with the communication pipe 7. It flows into the drainage pipe 8. That is, the installation height of the upstream end opening 18 is an overflow water level in which the water in the nursery bed 2 and the germination root reservoir 4 flows or drains downstream as overflow water.

  A flow rate adjusting valve 19 is provided at the downstream end of the water supply pipe 5 so that the amount of water supplied to the nursery bed 2 and the germination root reservoir 4 can be adjusted.

  In order to breed a reed using the reed seedling raising system according to the present embodiment, first, as shown in FIG. 2, a reed stalk is placed near the surface of the water in the germination root reservoir 4 in which water 17 is stored. 21 is left standing and then germinated and rooted from the stem 21 of the reed while the water supply facility 3 supplies water to the reservoir for germination and rooting.

  When the reed stem 21 is allowed to stand and germinate and root, the top of the reed stem 21 is cut off as necessary to stop growing in the length direction of the reed, and then the reed stem 21 is removed. It is desirable to bundle several loosely and float them on water.

  In this way, it is possible to prevent the reed stem 21 from being warped and dried or submerged, and to prevent the sprouted reed stem 21 from falling down.

  In addition, it has been confirmed by experiment that it can germinate and root from the stem 21 of a reed in 1 to 2 weeks by this process.

  Next, as shown in FIG. 3, the sprouted reed stem 21 is cut as necessary so that the nodes are included, and then the reed stem 15 is horizontally placed on the nursery 2.

  When placing the germinated and rooted reed stem 15 in the nursery 2, the reed stem 15 is slightly embedded in the nursery material 16 so that the reed root will settle on the nursery material 16 and the nutrients can be easily absorbed from the nursery material 16. However, depending on the state of root germination, a mode of placing on the nursery material 16 or floating on the water 17 is also conceivable. In any case, care should be taken to prevent drying and submersion of the reed stem 15 and to secure running water.

  Next, while supplying water to the nursery bed 2 with the water supply equipment 3, the seedlings are grown from the reed stems 15.

  In this way, the stem 15 of the reed placed horizontally on the seedbed 2 grows as a seedling by extending the root to the seedling material 16, but in order to grow the reed seedling while supplying water to the seedbed 2, Reeds can be grown faster than in the case of using the conventional seedling raising method. In addition, after reeds are sufficiently grown, they will be transplanted to wetlands as appropriate or shipped as seedlings.

  In addition, it has been confirmed by experiment that it can be grown into a seedling that can be transplanted in 2 to 3 weeks by this process.

  As described above, according to the reed seedling raising system 1 according to the present embodiment, when reed seedling is performed, the reed stem 15 is horizontally disposed on the seedbed 2, and water is supplied to the seedbed 2 by the water supply facility 3. Therefore, since the seedlings are grown, the growth of the reed is faster than in the case of using the conventional seedling raising method, and it can be transplanted in about one or two months after starting the seedling work. This seems to be because sufficient oxygen is supplied to the nursery bed 2 by flowing the water in the nursery bed 2.

  Therefore, it is possible to grow seedlings of 3 to 4 cycles per year, and it is possible to efficiently grow a large amount of seedlings.

  Further, since the seedbed material 16 is laid on the seedbed 2 in advance, it is sufficient to dig up the reed stem 15 grown as a seedling together with the seedbed material 16 and transplant it or put it in a pot for shipping. Therefore, it is not necessary to replant the pot in the intermediate stage of the seedling raising process as in the conventional case.

  Moreover, according to the reed seedling raising system 1 according to the present embodiment, when water introduced from the river is stored in the open water tank 6, a large amount of oxygen dissolves in the water, so that the water contains a large amount of oxygen. Can be made to flow into the nursery bed 2 through the water supply pipe 5 and the water in the nursery bed can be allowed to flow, and oxygen necessary for raising the reed seedling can be sufficiently supplied to the nursery bed 2.

  Moreover, since the water exceeding the predetermined overflow water level is drained out of the nursery bed 2, the water in the nursery bed 2 can be made to flow reliably, and the water level of the nursery bed 2 is set to a water level suitable for raising seedlings of reeds. It becomes possible to keep.

  Further, according to the reed seedling raising system 1 according to the present embodiment, a plurality of the seed beds 2 are arranged in series, and among the seed beds, the adjacent nurse beds 2 and 2 are communicated with each other through the communication pipe 7, and the inside of the communication pipe is formed. The overflow water is allowed to flow from the upstream nursery bed 2 to the downstream nursery bed 2, and the water supply pipe 5 is connected to the most upstream nursery bed 2 among the nursery beds 2. It is possible to efficiently flow the water inside.

  In addition, according to the reed seedling raising system 1 according to the present embodiment, the germination rooting reservoir 4 is provided in which water is stored and the reed stem 21 can float and stand near the surface of the water. Thus, only the reed stems can be selected and placed on the nursery bed 2, the nursery bed 2 can be used efficiently, and the reed raising efficiency of reed can be improved.

In this embodiment , by increasing the installation height of the open-type water storage tank 6 constituting the water supply facility 3, the running water in the nursery bed 2 is secured, but means for securing the running water in the nursery bed is required. It is not limited to a structure, You may comprise so that it may be forced to flow using the water supply equipment using a predetermined water supply pump or a drainage pump. Further, instead of securing running water with the water supply equipment, the running water in the nursery bed may be secured by the configuration of the nursery bed. For example, if a nursery is created using a step or slope of the terrain, the nursery can be made to flow naturally.

  Further, in this embodiment, the overflow water is drained as it is to a river, a lake, a drainage ditch or the like, but instead, the overflow water may be circulated to the open water tank 6. Absent.

  In the present embodiment, one germination root reservoir 4 and two seed beds 2 are provided. Needless to say, the number of germination root reservoirs and seed beds is arbitrary.

  In the present embodiment, the nursery beds 2 are arranged in series and the adjacent nursery beds 2 and 2 are communicated with each other through the communication pipe 7. However, water is supplied to each nursery bed 2 and the water in the nursery beds is If the seedbed 2 can be made to flow, it is arbitrary how the nursery beds 2 are arranged. For example, the nursery beds may be arranged in parallel without being arranged in series, or arranged in series. A plurality of nurseries may be arranged in parallel.

  The same applies to the number and arrangement of germination root reservoirs. In addition, the germination root reservoir and the nursery may be combined. For example, they may be arranged in series and communicate with each other through a predetermined communication pipe.

  In the present embodiment, sand or soil is used as the seedbed material 16, but instead of this, dredged mud soil or a dehydrated cake generated by dehydrating the dredged mud soil may be used as the seedbed material. Absent.

  In such a case, the dredged mud or the dewatered cake obtained by dehydrating the dredged mud contains a lot of nutrients, so the environment is more suitable for the growth of reeds, thus promoting reed growth and further shortening the seedling raising period. The In addition, dehydrated cakes are usually often used as embankment materials with the addition of a solidifying material, but for dehydrated cakes that do not add a solidifying material and dredged mud that does not undergo dehydration treatment, these are not disposed of, It can be used effectively.

(Reference embodiment)

Next, a method for transplanting reed according to the reference embodiment will be described. Note that components that are substantially the same as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the reed transplanting method according to the present embodiment, first, as shown in FIG. 4, the bottom mud 33 of the water area 32 where reeds are growing is dredged on the waterside 31, and then the dredged dredged mud soil is dehydrated. To produce a dehydrated cake.

  In this process, for example, the bottom mud 33 is dredged with a high-concentration dredger, and after this is separated with a sediment separator, the over mud is once left in a sand settling tank, and then the supernatant mud is transferred to a stirring tank. Then, after adding a flocculant and stirring and mixing, it is dehydrated with a dehydrator such as a screw decanter or a filter press, and the under portion can be used as a dehydrated cake.

  Next, the reed is nurtured by the reed breeding system 1 using the dehydrated cake as a seedbed material 16. Since the reed seedling raising system 1 has been described in detail in the above-described embodiment and its modifications, the description thereof is omitted here. The reed seedling raising system 1 creates a suitable seedling yard in the vicinity of the water area 32, for example, in the coastal area, and constructs it in the seedling yard.

  When a reed is nurtured in a replantable state by the reed seedling system 1, the reed seedling is transplanted to a tidal flat 34 as a wetland formed in the water area 32. The tidal flat 34 may exist naturally or may be artificially constructed.

  When transplanting reed seedlings, the reed reed seedlings may be dug out together with the nursery material 16 and packed into a bag, for example, and transported to the tidal flat 34.

  As described above, according to the method for transplanting reed according to the present embodiment, in the vicinity of the water area where the bottom mud 33 is dredged, generation of dehydrated cake, installation of the seedbed 2, breeding of reed, replanting of reed, etc. Since all work can be performed, the efficiency of natural restoration work using reeds is improved, and by using the dehydrated cake effectively, there is no need to separately prepare the nursery material 16 used for the nursery 2 and the economy. This is an excellent transplantation method.

  Moreover, since all steps can be performed in the water area 32 where the reed originally grew on the waterside, there is no concern of changing the reproductive environment of reed, and reed seedling and transplantation can be performed in a large amount in a short time. It becomes.

  In addition, about the effect which concerns on the seedling raising system 1 of a reed, it is the same as that of 1st Embodiment, The description is abbreviate | omitted here.

  In the present embodiment, the dehydrated cake is used as the nursery material, but dredged mud may be used instead.

  Even in such a configuration, in addition to the same effects as described above, there is a remarkable effect that it is not necessary to perform a dehydration process in the dredging operation.

It is the figure which showed the seedling raising system of 1st Embodiment, (a) is a top view, (b) is sectional drawing which follows the AA line of (a). It is the figure which showed the seedling raising system of 1st Embodiment, and is sectional detail drawing which follows the CC line of Fig.1 (a). It is the figure which showed the seedling raising system of 1st Embodiment, and is sectional detail drawing which follows the BB line of Fig.1 (a). The conceptual diagram which showed a mode that the transplanting method of the Yoshi concerning 2nd Embodiment is implemented.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Nursery system 2 Nursery bed 3 Water supply equipment 4 Germination root reservoir 5 Water supply pipe 6 Open type water tank 7 Communication pipe 16 Nursery bed material 34 Tidal flat (wetland)

Claims (1)

Water is stored so that reed stalks can float and stand in the vicinity of the surface of the water, and a germination rooting reservoir and predetermined nursery material are laid and the water level is higher than the top of the nursery material. And a seed bed in which a reed sprouted reed stem is disposed in the germination root reservoir, and a water supply facility for supplying water to the germination root reservoir and the nursery bed And at least one of the nursery bed and the water supply facility configured to allow water in the nursery bed to flow during the raising seedling.

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