Seabed stabilizing device for sea grass planting and planting method

Abstract

The invention provides a seabed stabilizing device for sea grass planting and a planting method, and belongs to the technical field of sea grass planting. A planting cavity is formed in the planting reef body; the planting cavity is communicated with the top of the planting reef body; the planting cavity is used for placing sea grass seeds, the sea grass seeds are buried in soil, the top of the planting cavity is covered with a fishing net, and the fishing net is fixed to the planting reef body so as to limit the sea grass seeds; anchor chains are arranged on two opposite sides of the planting reef body; the number of the bases is equal to that of the anchor chains; the base is fixed to the seabed, a connecting hole is formed in the base, and the base is further provided with a positioning structure matched with at least one chain link in an inserted mode. Wherein the outer side of the planting reef body is provided with a floating body, and the floating body is located at the top of the planting reef body and floats on the sea surface; the sea grass seeds and the soil in the planting reef body are located in the seawater; according to the arrangement, the germination rate of the seaweed seeds can be increased.

Description

Technical Field

[0001] This application belongs to the field of seagrass cultivation technology, specifically relating to a seabed stabilization device and cultivation method for seagrass cultivation. Background Technology

[0002] Due to factors such as water pollution, overfishing, and climate change, the area of ​​typical habitats such as seagrass beds is declining. In order to curb the further deterioration of typical seagrass bed habitats, ecological restoration of seagrass beds is necessary. The existing restoration method involves planting seagrass seeds on the seabed and allowing the seagrass seeds to grow naturally on the seabed.

[0003] Among the above transplantation methods, the method of directly planting seaweed seeds on the seabed has a low germination rate due to the greater water depth. Summary of the Invention

[0004] This application provides a seabed stabilization device and planting method for seagrass cultivation, aiming to solve the problem of low germination rate of seagrass seeds planted on the seabed in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: A seabed stabilization device for seagrass cultivation is provided, comprising: The planting reef has a planting cavity inside; the planting cavity is connected to the top of the planting reef; the planting cavity is used to place seaweed seeds, which are buried in the soil; the top of the planting cavity is covered with a fishing net, which is fixed to the planting reef to limit the seaweed seeds; anchor chains are provided on opposite sides of the planting reef. The number of bases is equal to the number of anchor chains; the bases are fixed to the seabed, and the bases have connecting holes for the anchor chains to pass through, and the bases also have positioning structures that engage with at least one chain link. The planting reef has a floating body on its outer side, which is located at the top of the planting reef and floats on the sea surface; the seaweed seeds and soil inside the planting reef are all located in seawater.

[0006] In one possible implementation, a connecting hole is provided on the side of the base, the connecting hole penetrating the side of the base; the top of the base has a positioning hole communicating with the connecting hole, the positioning structure including a positioning rod that is inserted into the positioning hole, the bottom end of the positioning rod being able to be inserted into an anchor chain in the connecting hole.

[0007] In one possible implementation, the bottom of the connecting hole has a socket aligned with the positioning hole, and the bottom of the positioning rod is inserted into the socket.

[0008] In one possible implementation, the positioning structure further includes a stop bar located outside the base, and the stop bar is engaged with a link of the anchor chain near its free end. The outer peripheral wall of the stop bar contacts the side of the base, and the base has a limiting ring for circumferentially limiting the stop bar, which can be inserted and engaged with the stop bar.

[0009] In one possible implementation, the top of the base is provided with a plurality of positioning holes spaced apart along the length of the connecting hole, and each positioning hole is provided with a positioning rod, which is inserted into the anchor chain in the connecting hole.

[0010] In one possible implementation, the base has an adjustment hole on a side wall perpendicular to the connection hole, the adjustment hole communicating with the connection hole to adjust the angle of the links in the anchor chain within the connection hole.

[0011] In one possible implementation, a cover is threaded onto the float, and the cover is in a sealing fit with the float. When the seaweed in the planted reef reaches a preset height, the planted reef sinks to the seabed; the cover separates from the float so that the float is filled with seawater.

[0012] In one possible implementation, the bottom of the planting cavity is a mesh structure, and the through-holes of the mesh structure are filled with a biodegradable material; the planting cavity is filled with seaweed mud.

[0013] This application provides a seabed stabilization device for seagrass cultivation. Compared with existing technologies, this device provides a support carrier for seagrass seeds by setting a planting cavity within the planting reef and placing seagrass mud and seeds inside the cavity; by fixing a fishing net to the planting reef and covering the top of the planting cavity, it limits the seagrass seeds and reduces the likelihood of them detaching from the cavity; by placing a float near the top of the planting reef on its outer side, the float floats on the sea surface, keeping the seagrass mud and seeds submerged; by using an anchor chain to pass through the base and then fixing the anchor chain with a positioning structure, the movement range of the planting reef is restricted; with the above-mentioned configuration, the seagrass seeds are adjusted to a position close to the sea surface before germination, facilitating germination; after germination, when the seagrass grows to a preset height, the planting reef is sunk to the bottom; compared to seagrass seeds germinating on the seabed, this configuration improves the germination rate.

[0014] To achieve the above objectives, another technical solution adopted in this application is: A method for cultivating seaweed is provided, including the following steps: Seaweed seeds are placed inside the planting cavity of the planting reef, and the opening at the top of the planting reef is covered by a fishing net, which is then fixed to the planting reef. The planting reef is connected to the base by an anchor chain, and the floating body floats on the sea surface. The seaweed seeds and soil in the planting reef are located in the seawater to facilitate the germination of the seaweed seeds. When the seaweed grows to a preset height, the planted reef sinks to the seabed, and the interior of the float is filled with seawater.

[0015] In one possible implementation, when the planted reef is sunk to the seabed, the positioning rod on the base is pulled out first. At this time, the anchor chain will provide tension to the stop rod, reducing the possibility of the anchor chain being pulled out from the base on the side of the planted reef. Separate the limiting ring from the stop bar, remove the circumferential limiting of the stop bar, and then use marine lifting equipment to lift the free end of the anchor chain. At this time, the stop bar can be pulled outward together. When pulling the stop bar away from the base, pause the hoisting, remove the stop bar, and then continue the hoisting. When the planted reef is close to the seabed, stop pulling the anchor chain. At this time, fill the inside of the float with seawater so that the planted reef sinks to the seabed under the action of gravity. Connect the stop bar to the anchor chain on one side of the base, and connect the positioning rod to the anchor chain inside the base to strengthen the connection between the anchor chain and the base.

[0016] The beneficial effects of the seagrass planting method provided in this application are the same as those of the seabed stabilization device, and will not be repeated here. Attached Figure Description

[0017] Figure 1 A schematic diagram of a seabed stabilization device for seagrass cultivation provided in an embodiment of this application; Figure 2 for Figure 1 Enlarged diagram of section A in the middle; Figure 3 A schematic diagram of the fixing pile portion of a seabed stabilization device for seagrass cultivation provided in an embodiment of this application; Figure 4 for Figure 3 Enlarged diagram in B; Figure 5 A schematic diagram of the base portion of a seabed stabilization device for seagrass cultivation provided in an embodiment of this application; Figure 6 for Figure 5 Enlarged diagram of section C; Figure 7 A schematic diagram of the planting reef section of a seabed stabilization device for seagrass cultivation, provided in an embodiment of this application; Figure 8 A schematic diagram of the connecting rod portion of a seabed stabilization device for seagrass cultivation provided in an embodiment of this application; Figure 9 for Figure 8 Enlarged schematic diagram of section D in the middle; Figure 10 for Figure 8 Enlarged schematic diagram of section E in the middle; Figure 11 A schematic diagram of a seabed stabilization device for seagrass cultivation, provided in an embodiment of this application, showing the planting reef submerged on the seabed. Figure 12 for Figure 11 Enlarged schematic diagram of section F in the middle; Figure 13 A schematic diagram of the insertion rod portion of a seabed stabilization device for seagrass cultivation provided in an embodiment of this application; Figure 14 A cross-sectional view of the planting box portion of a seabed stabilization device for seagrass cultivation, provided in an embodiment of this application; Figure 15 for Figure 14 Enlarged schematic diagram of section G in the middle; Figure 16 A schematic diagram of a support rod portion of a seabed stabilization device for seagrass cultivation provided in an embodiment of this application; Figure 17 A schematic diagram of the fixing block portion of a seabed stabilization device for seagrass cultivation provided in an embodiment of this application; Figure 18 A schematic diagram of a baffle sealing the permeable holes of a seabed stabilization device for seagrass cultivation provided in an embodiment of this application; Figure 19 This is a schematic diagram of the baffle portion of a seabed stabilization device for seagrass cultivation, provided in an embodiment of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Planting reef; 11. Square frame; 12. Planting box; 121. Positioning block; 13. Strip groove; 14. Support rod; 15. Fixing block; 16. Insert rod; 17. Water inlet; 18. Baffle; 181. Water permeable hole; 182. Water passage space; 2. Base; 21. Connecting hole; 22. Fixing pile; 23. Positioning hole; 24. Support seat; 25. Insertion hole; 26. Adjustment hole; 27. Slide groove; 28. Clearance groove; 3. Planting cavity; 4. Anchor chain; 5. Positioning structure; 51. Positioning rod; 52. Stop bar; 6. Float; 61. Connection port; 62. Connecting ring; 63. Cover; 64. Connecting rod; 65. Sealing plug; 7. Limiting ring; 71. Connecting seat; 8. Fixing column. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] Please refer to the following: Figures 1 to 10 This application describes a seabed stabilization device for seagrass cultivation. The device includes a planting reef 1 and bases 2. The planting reef 1 has a planting cavity 3 inside, which is connected to the top of the reef 1. Seagrass seeds are placed inside the planting cavity 3 and buried in the soil. A fishing net covers the top of the planting cavity 3 and is fixed to the reef 1 to confine the seagrass seeds. Anchor chains 4 are provided on opposite sides of the reef 1. The number of bases 2 is equal to the number of anchor chains 4. The bases 2 are fixed to the seabed and have connecting holes 21 for the anchor chains 4 to pass through. The bases 2 also have positioning structures 5 that engage with at least one chain link. A float 6 is provided on the outer side of the reef 1, located at the top of the reef 1 and floating on the sea surface. The seagrass seeds and soil inside the reef 1 are submerged in seawater.

[0021] This application provides a seabed stabilization device for seagrass cultivation. Compared with existing technologies, this device provides a support carrier for seagrass seeds by setting a planting cavity 3 inside the planting reef 1 and placing seagrass seeds inside the planting cavity 3; by fixing a fishing net to the planting reef 1 and covering the top of the planting cavity 3, it can limit the seagrass seeds and reduce the possibility of them detaching from the planting cavity 3; by setting a float 6 near the top of the outside of the planting reef 1, the float 6 can float on the sea surface, and the seagrass mud and seagrass seeds can be kept in the seawater; by passing an anchor chain 4 through the base 2 and then fixing the anchor chain 4 through a positioning structure 5, the movement range of the planting reef 1 can be restricted; with the above-mentioned settings of this application, the seagrass seeds are adjusted to a position close to the sea surface before germination, which facilitates germination; after the seagrass seeds germinate and grow to a preset height, the planting reef 1 is sunk to the bottom; therefore, the above-mentioned settings of this application can improve the germination rate of seagrass seeds.

[0022] It should be noted that the base 2 is fixed on the fixed pile 22, which is driven into the seabed to fix it in place. Fixing the base 2 on the fixed pile 22 ensures the stability of the base 2. The length of the fixed pile 22 is determined according to the actual situation to ensure the stability of the fixed pile 22.

[0023] The planting reef 1 includes a square frame 11 made of several supporting pillars. Planting boxes 12 are installed inside the square frame 11 and fixed within it. The planting boxes 12 form planting cavities 3 inside, and a fishing net is fixed to the top of each planting box 12. Seaweed mud is placed inside the planting boxes 12. After the seaweed seeds germinate, the seaweed grows upwards, passing through the fishing net and continuing to grow. Floats 6 are installed on the sides of the square frame 11. The number of floats 6 is determined according to actual conditions to ensure that the floats 6 can float on the sea surface. There is a certain depth between the planting boxes 12 and the floats 6 to allow the seaweed seeds to germinate within the specified depth.

[0024] In some embodiments, such as Figures 1 to 19 As shown, the planting box 12 is slidably mounted on the square frame 11 along the height direction. The planting box 12 has through holes for the support columns on the square frame 11 to pass through. A strip groove 13 is provided at the bottom of the planting box 12 near one side. A support rod 14 is provided in the strip groove 13, and one end of the support rod 14 is hinged to one end of the strip groove 13. The support rod 14 has a first state of being rotated to a horizontal position and a second state of being rotated to a vertical position. When the support rod 14 is rotated to the vertical position, one side of the support rod 14 contacts the end of the strip groove 13 so that the support rod 14 can remain vertical. The distance between the planting box 12 and the float 6 can be different depending on the length of the support rod 14. The length of the support rod 14 is selected according to the actual situation. In this application, the distance between the planting box 12 and the waterline of the float 6 is 100 cm.

[0025] To ensure the stability of the support rod 14 in a vertical position, after the support rod 14 is rotated to a vertical position, a fixing block 15 is placed in the strip groove 13. One side of the fixing block 15 contacts the other side of the support rod 14, and the top of the fixing block 15 contacts the top of the strip groove 13. Fixing holes are provided on the outer wall of the planting box at positions corresponding to the fixing blocks 15. Through holes aligned with the fixing holes are provided on the fixing blocks 15. The fixing blocks 15 are fixed in the strip groove 13 by inserting a pin into them. At this time, both sides of the support rod 14 are restricted, and the support rod 14 cannot rotate around the hinge axis, so the support rod 14 can remain vertical. The bottom end of the support rod 14 abuts against the bottom of the square frame 11, keeping the planting box 12 in the upper middle position of the square frame 11.

[0026] After the seaweed grows to a preset length and the planting box 12 and square frame 11 sink to the seabed, the diver pulls out the pin on the fixing block 15, separating the fixing block 15 from the strip groove 13. Then, the diver uses a tool to tap the side of the support rod 14 away from the strip groove 13, causing the support rod 14 to swing towards the strip groove 13 at a certain angle. At this time, the support rod 14 is in an unstable state, and the planting box 12 slides downward under the action of gravity, eventually sliding to the bottom position of the square frame 11. Through the above settings, after the biodegradable material on the planting box 12 degrades, the roots of the seaweed can penetrate through the bottom of the planting box 12. By sliding the planting box 12 to the bottom position of the square frame 11, the distance between the bottom of the planting box 12 and the seabed can be shortened, making it easier for the roots of the seaweed to extend downward to the seabed. The biodegradable material is polycaprolactone.

[0027] In some embodiments, such as Figures 1 to 19 As shown, a rod 16 is fixedly provided at the bottom of the square frame 11, and a fixing post 8 is fixedly provided inside the seabed. The top of the fixing post 8 protrudes from the seabed, and the top of the fixing post 8 has a limiting hole that engages with the rod 16. After the square frame 11 sinks into the seabed, the rod 16 on the square frame 11 engages with the limiting hole on the fixing post 8, which can restrict the movement of the square frame 11 and improve the stability of the square frame 11.

[0028] In some embodiments, such as Figures 1 to 19 As shown, the planting box 12 has water inlets 17 on opposite sides, which are located below the waterline of the planting box 12. When the planting box 12 is first placed in the sea, seawater can enter the planting box 12 through the water inlets 17. Inside the planting box 12, at the position of the water inlets 17, there is a baffle 18. The baffle 18 has an L-shaped structure. The two sides of the baffle 18 contact the opposite sides of the planting box 12, and the bottom of the baffle 18 contacts the bottom of the planting box 12. The bent part of the baffle 18 passes through the planting box 12, and the planting box 12 has a through hole for the bent part of the baffle 18 to pass through. The vertical part of the baffle 18 has two permeable holes 181, which are located at the top and bottom positions, respectively. The depth of the seaweed mud inside the planting box 12 is between the two permeable holes 181, and the diameter of the permeable holes 181 is smaller than the diameter of the seaweed seeds.

[0029] When the planting box 12 is first placed in the sea, seawater enters from the inlet 17 between the baffle 18 and the inner wall of the planting box 12, and finally enters the planting box 12 through the water permeable hole 181, so that seawater can enter the planting box 12. Through the above settings, the impact of seawater on the seaweed mud in the planting box 12 can be reduced, and the sinking of the planting box 12 is not affected.

[0030] In some embodiments, a positioning block 121 is fixedly provided on the outer side of the planting box 12 at the position where the baffle 18 protrudes. The positioning block 121 has a through hole, and the bent part of the baffle 18 has two through holes. The two through holes on the bent part can be aligned with the through holes on the positioning block 121. The positioning block 121 and the bent part are engaged by a pin. A baffle plate is fixedly provided on the top of the pin. The diameter of the baffle plate is larger than the through hole on the positioning block 121.

[0031] When the planting box 12 is first lowered into the sea, there is a water passage space 182 between the baffle 18 and the inner wall of the planting box 12, which facilitates the entry of seawater into the planting box 12. After the planting box 12 sinks into the sea, the diver pulls the bent part of the baffle 18 outward, so that the inner side of the baffle 18 contacts the inner wall of the planting box 12. The baffle 18 can seal the water permeable hole 181 on the planting box 12. At this time, the baffle 18 is kept in a closed state by the pin and the through hole on the bent part.

[0032] For example, two anchor chains 4 or four anchor chains 4 can be set on the planted reef 1; when two anchor chains 4 are set on the planted reef 1, the two anchor chains 4 are located on opposite sides of the planted reef 1 and at the bottom; when four anchor chains 4 are set on the planted reef 1, the four anchor chains 4 are located on the four sides of the planted reef 1 and at the bottom.

[0033] In some embodiments, such as Figures 1 to 10 As shown, there are several floats 6, which are evenly arranged around the square frame 11, and the floats 6 are fixed on the square frame 11.

[0034] Once the seaweed on the planted reef 1 has grown to the preset height, the planted reef 1 is sunk to the seabed. After the planted reef 1 is sunk to the seabed, the interior of the float 6 is connected to the seawater, so that the interior of the float 6 is filled with seawater to increase the weight of the float 6.

[0035] To facilitate the filling of seawater into the float 6, connection ports 61 are provided at the top and bottom of the float 6. A metal connecting ring 62 is fixedly installed on the connection port 61 at the top of the float 6. The connecting ring 62 has an internal thread. After the threaded engagement of the connecting ring 62, a cover 63 is provided, and the cover 63 is sealed to the connecting ring 62. The metal connecting ring 62 has a stepped surface, and a sealing gasket is provided in the stepped surface. After the cover 63 is threaded to the metal connecting ring 62, the cover 63 presses against the sealing gasket to improve the sealing effect.

[0036] The bottom connection port 61 of the float 6 is also provided with a metal connecting ring 62. A connecting rod 64 is connected to the cover 63. The other end of the connecting rod 64 has a sealing plug 65, which is fixed to the outer peripheral wall of the other end of the connecting rod 64. When the cover 63 is threadedly engaged with the top connection port 61 of the float 6, the sealing plug 65 on the connecting rod 64 is sealed with the bottom connection port 61 of the float 6 to block the top and bottom connection ports 61 of the float 6. An inflation check valve is provided on the float 6. The inflation check valve is existing technology and will not be described in detail here.

[0037] After the planted reef 1 is sunk to the seabed, the divers unscrew the cover 63, and the sealing plug 65 is also separated from the connection port 61 at the bottom of the float 6, so that the connection ports 61 at the top and bottom of the float 6 are connected to the seawater, which makes it easier for seawater to enter the float 6, thereby increasing the weight of the float 6.

[0038] In some embodiments, such as Figures 1 to 10 As shown, the connecting hole 21 is located on the side of the base 2 and penetrates through the side of the base 2; the top of the base 2 has a positioning hole 23 that communicates with the connecting hole 21; the positioning structure 5 includes a positioning rod 51 that is inserted into the positioning hole 23, and the bottom end of the positioning rod 51 can be inserted into the anchor chain 4 in the connecting hole 21; the positioning structure 5 also includes a stop rod 52, which is located on the outside of the base 2 and is inserted into the link of the anchor chain 4 near the free end.

[0039] When the planted reef 1 is sunk to the seabed, the positioning rod 51 on the base 2 can be pulled out to separate the positioning rod 51 from the anchor chain 4. The free end of the anchor chain 4 can be lifted by the ship's hoisting equipment, which can pull the free end of the anchor chain 4 and finally pull the planted reef 1 to the seabed.

[0040] After the stop bar 52 is pulled away from the base 2, the stop bar 52 is in a non-load-bearing state. Then, the pulling of the anchor chain 4 is stopped, the diver removes the stop bar 52 from the anchor chain 4, and then continues to pull the anchor chain 4. After the planted reef 1 sinks to the bottom, the stop bar 52 and the positioning rod 51 are inserted and matched with the anchor chain 4 to limit the anchor chain.

[0041] After the planted reef 1 is sunk to the bottom, the stop bar 52 is first inserted into the chain link of the anchor chain 4 near the base 2, and the lifting force is slowly released until the stop bar 52 abuts against the side of the base 2. At this time, the positioning rod 51 on the top of the base 2 is inserted into the anchor chain 4 in the connecting hole 21 to strengthen the connection between the anchor chain 4 and the base 2. The side of the base 2 is provided with a support seat 24, which has an arc surface that contacts the stop bar 52 to limit the installation position of the stop bar 52.

[0042] To ensure the connection between the positioning rod 51 and the base 2, an insertion hole 25 is provided at the bottom of the connecting hole 21, aligned with the positioning hole 23. After passing through the chain link, the positioning rod 51 is inserted into the insertion hole 25, which enhances the connection between the positioning rod 51 and the base 2.

[0043] In some embodiments, such as Figures 1 to 10 As shown, the top of the base 2 is provided with a number of positioning holes 23 at intervals along the length of the connecting hole 21. Each positioning hole 23 is provided with a positioning rod 51, which is inserted into the anchor chain 4 in the connecting hole 21. Through the above arrangement, the connection between the anchor chain 4 and the base 2 can be further strengthened, the situation of the anchor chain 4 detaching from the base 2 can be reduced, and the stability between the anchor chain 4 and the base 2 can be improved.

[0044] To ensure that the positioning rod 51 can be inserted into the anchor chain 4 in the connecting hole 21, an adjustment hole 26 is provided on the side wall of the base 2 perpendicular to the connecting hole 21. The adjustment hole 26 is connected to the connecting hole 21. The diver can adjust the angle of the chain link in the connecting hole 21 through the adjustment hole 26 so that the positioning rod 51 can be inserted into the anchor chain 4 in the connecting hole 21.

[0045] In some embodiments, such as Figures 1 to 10 As shown, the outer peripheral wall of the stop bar 52 contacts the side of the base 2, and the base 2 has a limiting ring 7 for circumferentially limiting the stop bar 52, which can be inserted and engaged with the stop bar 52.

[0046] The limiting ring 7 is provided with a connecting seat 71, and the top of the base 2 has a sliding groove 27 that is inserted and matched with the connecting seat 71. After the stop bar 52 abuts against the side of the base 2, the limiting ring 7 can be sleeved on the stop bar 52 through the sliding cooperation between the connecting seat 71 and the sliding groove 27, so as to play the role of circumferential limiting of the stop bar 52.

[0047] Specifically, the connecting seat 71 can be a T-shaped structure or a wedge-shaped structure. Taking the connecting seat 71 as a T-shaped structure as an example, the sliding groove 27 on the base 2 is a T-shaped groove, and the top of the base 2 has a relief groove 28 that is inserted and matched with a part of the limiting ring 7, so that the limiting ring 7 can be inserted and matched with the stop bar 52 abutting on the base 2.

[0048] In some embodiments, such as Figures 1 to 10 As shown, the bottom of the planting cavity 3 is a mesh structure, and the through holes of the mesh structure are filled with biodegradable material; the planting cavity 3 is filled with seaweed mud.

[0049] The bottom of the planting box 12 has a mesh structure. The holes at the bottom of the planting box 12 are filled with biodegradable material. During the germination stage of seaweed seeds, the biodegradable material at the bottom of the planting box 12 can support the seaweed mud. When the seaweed grows to the preset height, the planting reef 1 is sunk to the seabed. As the biodegradable material degrades, the roots of the seaweed in the seaweed mud can penetrate the planting box 12.

[0050] In some embodiments, during the seagrass seed germination stage, a waterproof camera is periodically submerged in the planting box 121 to observe the seagrass germination at the planting box location.

[0051] It should be noted that during the tides, the planting box 12 is always located in the seawater; the preset height of the seaweed is 50 cm. After the seaweed grows to 50 cm, the planting reef 1 is sunk to the seabed; the seaweed seeds can grow to 50 cm in more than four months after germination.

[0052] Table 1 Germination rate of seaweed seeds at different depths

[0053] Example: During the seagrass seed germination stage, the planting reef 1 was set at a depth of 100 cm above the sea surface, and the germination rate of the seagrass seeds was 50.12±7.1%. During the four-month growth period, the seagrass density was 110 per square meter, and the average plant height was 53.2±2.8 cm.

[0054] Comparative Example 1: During the seagrass seed germination stage, the planting reef 1 was set at a depth of 20 cm above the sea surface, and the germination rate of the seagrass seeds was 25.27±5.97. During the four-month growth period, the seagrass density was 90 per square meter, and the average plant height was 50.3±3.8 cm.

[0055] Comparative Example 2: During the seagrass seed germination stage, the planting reef 1 was set at a depth of 50 cm above the sea surface, and the germination rate of the seagrass seeds was 45.38±4.03. During the four-month growth period, the seagrass density was 120 per square meter, and the average plant height was 49.8±5.1 cm.

[0056] Comparative Example 3: During the seagrass seed germination stage, the planting reef 1 was set at a depth of 100 cm above the sea surface, and the germination rate of the seagrass seeds was 50.12±7.1%. During the four-month growth period, the seagrass density was 110 per square meter, and the average plant height was 53.2±2.8 cm.

[0057] Based on the same inventive concept, this application also provides a method for cultivating seaweed, including the following steps: Seaweed seeds are placed inside the planting cavity 3 of the planting reef 1, and the opening at the top of the planting reef 1 is covered by a fishing net, which is then fixed to the planting reef 1.

[0058] The planting reef 1 is connected to the base 2 by the anchor chain 4, and the float 6 floats on the sea surface. The seaweed seeds and soil inside the planting reef 1 are located in the seawater to facilitate the germination of the seaweed seeds.

[0059] When the seaweed grows to a preset height, the planted reef 1 sinks to the seabed, and the float 6 is filled with seawater to increase its weight. During the process of the planted reef 1 being pulled to the seabed, the float 6 can provide upward buoyancy to the planted reef 1. After the planted reef 1 sinks to the bottom, the float 6 is filled with seawater. Through the above settings, the planted reef 1 can be made more stable during the sinking process.

[0060] After the planted reef 1 sinks to the seabed, the base 2 is located on the side of the planted reef 1. During the process of sinking the planted reef 1 to the seabed, the diver stays away from the area where the planted reef 1 is located. After the planted reef 1 sinks to the bottom, the diver can go to the position of the float and unscrew the cover 63 on the float 6 to fill the float 6 with seawater to increase the weight of the float 6.

[0061] In some embodiments, such as Figures 1 to 10 As shown, when the planted reef 1 is sunk into the seabed, the positioning rod 51 on the base 2 is pulled out first. At this time, the anchor chain 4 will provide tension to the stop rod 52, reducing the possibility of the anchor chain 4 being pulled out from the base 2 on one side of the planted reef 1.

[0062] Separate the limiting ring 7 from the stop bar 52, remove the circumferential limiting of the stop bar 52, and then lift the free end of the anchor chain 4 using marine lifting equipment. At this time, the stop bar 52 can be pulled outward together.

[0063] When pulling the stop bar 52 away from the base 2, the hoisting is paused first, and the stop bar 52 is pulled out, and then the hoisting continues; during the process of pulling the anchor chain 4, the pulling speed is not fast.

[0064] When the planted reef 1 approaches the seabed, stop pulling the anchor chain 4. At this time, fill the interior of the float 6 with seawater so that the planted reef 1 sinks to the seabed under the action of gravity.

[0065] After the planted reef 1 sinks into the seabed, it is connected to the base 2 of the stop bar 52 near the free end of the anchor chain 4 by insertion, and the limiting ring 7 is connected to the stop bar 52.

[0066] The stop bar 52 is inserted into the anchor chain 4 on one side of the base 2, and the positioning rod 51 is inserted into the anchor chain 4 inside the base 2 to strengthen the connection between the anchor chain 4 and the base 1.

[0067] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A seabed stabilization device for seagrass cultivation, characterized in that, include: The planted reef has an internal planting cavity; The planting cavity is connected to the top of the planting reef; the planting cavity is used to place seaweed seeds, which are buried in the soil; the top of the planting cavity is covered with a fishing net, which is fixed to the planting reef to limit the seaweed seeds; anchor chains are provided on both opposite sides of the planting reef. The number of bases is equal to the number of anchor chains; the bases are fixed to the seabed, and the bases have connecting holes for the anchor chains to pass through, and the bases also have positioning structures that engage with at least one chain link. The planting reef has a floating body on its outer side, which is located at the top of the planting reef and floats on the sea surface; the seaweed seeds and soil inside the planting reef are all located in seawater.

2. The seabed stabilization device for seagrass cultivation as described in claim 1, characterized in that, A connecting hole is provided on the side of the base, and the connecting hole penetrates the side of the base; the top of the base has a positioning hole communicating with the connecting hole, and the positioning structure includes a positioning rod that is inserted into the positioning hole, and the bottom end of the positioning rod can be inserted into the anchor chain in the connecting hole.

3. The seabed stabilization device for seagrass cultivation as described in claim 2, characterized in that, The bottom of the connecting hole is aligned with the positioning hole and has an insertion hole, and the bottom of the positioning rod is inserted into the insertion hole.

4. The seabed stabilization device for seagrass cultivation as described in claim 2, characterized in that, The positioning structure also includes a stop bar, which is located on the outside of the base and is engaged with a link of the anchor chain near the free end. The outer peripheral wall of the stop bar contacts the side of the base, and the base has a limiting ring for circumferentially limiting the stop bar, which can be inserted and engaged with the stop bar.

5. A seabed stabilization device for seagrass cultivation as described in claim 2, characterized in that, The top of the base is provided with a number of positioning holes spaced apart along the length of the connecting hole. Each positioning hole is provided with a positioning rod, which is inserted into the anchor chain in the connecting hole.

6. A seabed stabilization device for seagrass cultivation as described in claim 2, characterized in that, An adjustment hole is provided on the side wall of the base perpendicular to the connection hole. The adjustment hole communicates with the connection hole to adjust the angle of the chain link in the anchor chain within the connection hole.

7. The seabed stabilization device for seagrass cultivation as described in claim 1, characterized in that, The float is threadedly connected to a cover, which is in a sealing fit with the float. When the seaweed in the planted reef reaches a preset height, the planted reef sinks to the seabed; the cover separates from the float so that the float is filled with seawater.

8. The seabed stabilization device for seagrass cultivation as described in claim 1, characterized in that, The bottom of the planting cavity is a mesh structure, and the through holes of the mesh structure are filled with biodegradable material; the planting cavity is filled with seaweed mud.

9. A seagrass planting method using the seabed stabilization device for seagrass planting as described in claim 4, characterized in that, Includes the following steps: Seaweed seeds are placed inside the planting cavity of the planting reef, and the opening at the top of the planting reef is covered by a fishing net, which is then fixed to the planting reef. The planting reef is connected to the base by an anchor chain, and the floating body floats on the sea surface. The seaweed seeds and soil in the planting reef are located in the seawater to facilitate the germination of the seaweed seeds. When the seaweed grows to a preset height, the planted reef sinks to the seabed and the interior of the float is filled with seawater.

10. A seaweed cultivation method as described in claim 9, characterized in that, When sinking the planted reef into the seabed, first pull out the positioning rod on the base. At this time, the anchor chain will provide tension to the stop rod, reducing the possibility of the anchor chain being pulled out from the base on the side of the planted reef. Separate the limiting ring from the stop bar, remove the circumferential limiting of the stop bar, and then use marine lifting equipment to lift the free end of the anchor chain. At this time, the stop bar can be pulled outward together. When pulling the stop bar away from the base, pause the hoisting, remove the stop bar, and then continue the hoisting. When the planted reef is close to the seabed, stop pulling the anchor chain. At this time, fill the inside of the float with seawater so that the planted reef sinks to the seabed under the action of gravity. Connect the stop bar to the anchor chain on one side of the base, and connect the positioning rod to the anchor chain inside the base to strengthen the connection between the anchor chain and the base.

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