A method of promoting recovery of shallow sea seagrass beds

Abstract

The present application relates to the technical field of seaweed bed restoration, and discloses a method for promoting recovery of a shallow seaweed bed, which comprises the following steps: 1, soaking seaweed seeds in water with a temperature of 40 DEG C and added with 25 mg / L gibberellin for 24 h to obtain seaweed seeds to be planted; 2, collecting soil in a seaweed bed recovery area, and performing screening treatment on the soil until particulate impurities in the soil are removed; 3, mixing the screened soil and the seaweed seeds to be planted to obtain a sowing mixture, and placing the sowing mixture into a cavity of a sowing container; the sowing container comprises a body, a transparent elastic sheet mounted on the body, a flow guide portion penetrating through the body and fixed to the bottom of the elastic sheet, the flow guide portion being vertically slidably connected with the body, and flow guide channels being formed in the two sides of the flow guide portion and communicating with the cavity; and 4, scattering the sowing container into a seaweed bed area to be recovered. The sowing method is simple, and can greatly reduce loss of seaweed seeds.

Description

Technical Field

[0001] This invention relates to the field of seagrass bed restoration technology, specifically a method for promoting the restoration of shallow seagrass beds. Background Technology

[0002] Shallow seagrass beds serve as feeding grounds, habitats, nurseries, and shelters for a variety of precious marine life, including dugongs, green sea turtles, and seahorses. Often referred to as marine ranches, they are among the most productive aquatic ecosystems globally, with ecological service value comparable to typical marine ecosystems like coral reefs and mangroves. However, this ecosystem is also one of the most fragile on Earth, suffering loss due to direct or indirect human impacts. Furthermore, the global decline of seagrass is accelerating, further exacerbating the deterioration of coastal ecosystems.

[0003] To address the aforementioned problems, the following prior art exists: Chinese Patent, Publication No. CN113080051A, discloses a method for promoting the restoration of shallow seagrass beds. The method of this application includes the following steps: Step (1) heating diatomaceous earth and agar to 100-120℃ and stirring at 100-150 r / min for 10-15 min to obtain a primary mixture; Step (2) soaking seagrass seeds in water at 45-50℃ for 20-24 h to obtain seagrass seeds to be planted; Step (3) pouring the primary mixture from step (1) into a shellfish shell, cooling to 47-50℃, then placing the seagrass seeds to be planted from step (2) into the primary mixture from the shellfish shell, cooling to 20-25℃ to obtain seagrass seed plants; Step (4) covering the seagrass seed plants from step (3) onto the seagrass bed to be restored. The method of this application can be used to promote the restoration of shallow seagrass beds and improve the restoration capacity of the seed method for seagrass beds.

[0004] Based on the aforementioned existing technologies, applying the mixture to the shells of shellfish effectively stabilizes seaweed seeds, reducing their dispersion by ocean currents, but it does not address the repair issue. However, in reality, because seaweed seeds attach themselves to shells, it is difficult to achieve a stable bond, resulting in limited recovery. Furthermore, shallow seaweed beds are often already damaged and lack sufficient nutrient supply, making recovery quite challenging. Summary of the Invention

[0005] This invention aims to provide a method for promoting the restoration of shallow seagrass beds. It involves cultivating seagrass seeds in a seagrass bed environment to promote the restoration of shallow seagrass beds.

[0006] To achieve the above objectives, the basic solution of the present invention is as follows:

[0007] A method for promoting the restoration of seagrass beds in shallow seas includes the following steps:

[0008] Step 1: Soak the seaweed seeds in water at 40℃ with 25mg / L gibberellin added for 24 hours to obtain the seaweed seeds to be planted;

[0009] Step 2: Collect soil from the seagrass bed restoration area and sieve the soil until particulate impurities are removed.

[0010] Step 3: Mix the sieved soil with the seaweed seeds to be planted to obtain a sowing mixture. Place the sowing mixture into the cavity of the sowing container. The sowing container includes a main body with an opening at the top. A transparent elastic sheet is installed on the main body inside the opening. A cavity is formed between the elastic sheet and the main body. A guide part that penetrates the main body is fixed at the bottom of the elastic sheet. The guide part slides vertically with the main body. Guide channels that communicate with the cavity are opened on both sides of the guide part.

[0011] Step 4: Sow the seeding container into the area of ​​seagrass bed to be restored.

[0012] Furthermore, in step 3, the mass ratio of the seaweed seeds to be planted to the sieved soil is 1:100 to 1:150.

[0013] Furthermore, in step 2, the soil is sieved using a 20-30 mesh screen.

[0014] Furthermore, in step 3, an annular filter section is installed on the outer periphery of the flow guide section, and the filter section has several openings.

[0015] Furthermore, in step 4, after the seeding container is placed into the seagrass bed area to be restored, the elastic sheet deforms downward under the pressure of seawater, causing the guide part to extend to the outside of the body, so that the guide channel is connected to the cavity, seawater is injected into the cavity, and the seawater is mixed with the seeding mixture.

[0016] Furthermore, in step 4, there are several sowing containers, which are arranged in the horizontal and vertical directions. Adjacent sowing containers are connected by connecting parts, which connect the containers into a ring-shaped container.

[0017] Furthermore, the seeding container and connecting parts are both made of biodegradable materials.

[0018] Furthermore, the annular container also contains several horizontally arranged seeding containers, and there are connecting parts between adjacent seeding containers. The annular container and the seeding containers inside the annular container constitute a mesh seeding container.

[0019] The principle and beneficial effects of the present invention: (1) In the present invention, the seaweed seeds are soaked and sterilized in advance to soften the seaweed seeds and facilitate subsequent development. In this application, the soil of the recovery area is used as the culture medium for seaweed seeds, and seawater can also be introduced into the cavity so that the seaweed seeds can adapt to the environment of the recovery area during development, improve the survival rate of seaweed, and reduce the probability of reduced survival rate due to environmental changes.

[0020] (2) In this invention, both the seeding container and the connecting part are made of biodegradable materials, which reduces pollution to the marine environment and thus reduces the impact on the seagrass bed in the restoration area. In this invention, the seeding container uses the pressure of seawater to inject seawater into the cavity. At the same time, it also allows the guide part to extend into the soil, ensuring the stability of the entire mesh container. This reduces the chance of the mesh container being lost within the seagrass bed being restored. Meanwhile, since the seagrass seeds and soil are both inside the cavity, the impact of seawater flow on the seagrass seeds is reduced. In this way, the seagrass seeds are concentrated on the seagrass bed that needs to be restored and develop normally, thus achieving the purpose of restoring the seagrass bed. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the arrangement of the sowing containers in an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the body in an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the main body in an embodiment of the present invention. Detailed Implementation

[0024] The following detailed description illustrates the specific implementation method:

[0025] The reference numerals in the accompanying drawings include: seeding container 11, connecting part 12, elastic sheet 21, soil 22, filter part 23, guide part 24, guide channel 25, and filter hole 26.

[0026] This application provides a method for promoting the restoration of seagrass beds in shallow seas, basically as follows: Figures 1 to 3 As shown, it includes the following steps:

[0027] Step 1: Soak the seaweed seeds in water at 40°C with 25 mg / L gibberellin added for 24 hours to obtain seaweed seeds to be planted. In this embodiment, soaking and sterilization are used to reduce the impact of harmful bacteria on the seaweed seeds. At the same time, the outer skin of the seaweed seeds is softened, which is beneficial to the germination of the seaweed seeds.

[0028] Step 2: Collect soil 22 from the seagrass bed restoration area and sieve the soil 22 until particulate impurities are removed. Use a 20-30 mesh sieve to sieve the soil 22 to make the particle size more uniform and reduce large particles.

[0029] Step 3: Mix the sieved soil 22 with the seaweed seeds to be planted to obtain a sowing mixture. The mass ratio of the seaweed seeds to the sieved soil 22 is 1:100 to 1:150. Since the soil 22 was sieved in step 2, large particles and sharp particles in the soil 22 can be reduced. Therefore, when the seaweed seeds are mixed with the soil 22, the probability of damage to the seeds can be reduced, thus ensuring the quality of the seaweed seeds. The sowing mixture is placed into the cavity of the sowing container 11. The sowing container 11 includes a body with an opening at the top. A transparent elastic sheet 21 is installed on the body inside the opening. A cavity is formed between the elastic sheet 21 and the body. A guide section 24 penetrating the body is fixed at the bottom of the elastic sheet 21. The guide section 24 slides vertically with the body. Guide channels 25 communicating with the cavity are opened on both sides of the guide section 24. An annular filter section 23 is installed on the outer periphery of the guide section 24. Several openings are opened on the filter section 23.

[0030] Step 4: Sow the seeding container 11 into the seagrass bed area to be restored. In this embodiment, after the seeder is placed on the seagrass bed in the restoration area, the elastic sheet 21 will deform under the pressure of seawater, as shown in the attached figure. Figure 3 As shown, at this time, the elastic sheet 21 will squeeze the guide section 24 downwards. During the downward sliding process, the guide channel 25 connects the seawater with the cavity, allowing the seawater to be injected into the cavity. The soil 22 and seawater in the cavity construct a seagrass bed environment in the restoration zone. The seawater temperature is also the same as the seawater temperature in the seagrass bed area of ​​the restoration zone, meaning that both the environment and temperature are suitable for seagrass seed development. At the same time, because the guide section extends downwards, it can be inserted into the seagrass bed soil 22 to ensure that the seeder can be stable within a certain range for stable development. Of course, since the elastic sheet 21 is transparent, sufficient light can be ensured. Since the seeder is biodegradable, the growing seagrass seeds can also rely on the seeder to grow after developing roots, gradually developing in the seagrass bed. In this embodiment, the independent container can protect the seagrass seeds, which can greatly improve the survival rate of seagrass seeds after development.

[0031] In another embodiment of this application, there are several sowing containers 11 arranged horizontally and vertically, with connecting parts 12 connecting adjacent sowing containers 11 to form a ring-shaped container. In this case, the sowing container 11 is named the first sowing container 11. Several horizontally arranged sowing containers 11 (named the second sowing container 11) are also provided inside the ring-shaped container, and connecting parts 12 also connect adjacent sowing containers 11. The ring-shaped container and the sowing containers 11 within it constitute a mesh sowing container 11.

[0032] In this embodiment, the mesh seeding container 11 can be hung on growing seaweed or on rocks in the sea, which makes the entire container stable, reduces the impact of ocean currents on the seeding container 11, and allows the seaweed seeds to grow and develop in the recovery area.

[0033] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific structures and / or characteristics in the solutions are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A method of promoting recovery of a shallow sea seagrass bed, characterised by: The method comprises the following steps: Step 1, the seaweed seeds are soaked in water with a temperature of 40 DEG C and added with 25 mg / L gibberellin for 24 hours to obtain the seaweed seeds to be planted; Step 2, the soil in the seaweed bed recovery area is collected and sieved until the particulate impurities in the soil are removed; Step 3, the sieved soil is mixed with the seaweed seeds to be planted to obtain a sowing mixture, and the sowing mixture is placed into the cavity of a sowing container, the sowing container comprising a body with an upper opening, a transparent elastic sheet is arranged on the body, the cavity is formed between the elastic sheet and the body, a flow guide portion penetrating through the body is fixed to the bottom of the elastic sheet, the flow guide portion is vertically slidably connected with the body, and flow guide channels are formed in the two sides of the flow guide portion and communicated with the cavity; Step 4, the sowing container is scattered into the seaweed bed area to be recovered.

2. The method of facilitating recovery of a shallow sea grass bed of claim 1, wherein: In step 3, the mass ratio of the seaweed seeds to be planted to the sieved soil is 1:100-1:

150.

3. The method of facilitating recovery of a shallow sea turf bed of claim 2, wherein: In step 2, the soil is sieved by using a 20-30 mesh sieve.

4. The method of facilitating recovery of a shallow sea turf bed of claim 3, wherein: In step 3, an annular filter portion is mounted on the outer periphery of the flow guide portion, and a plurality of openings are formed in the filter portion.

5. The method of facilitating recovery of a shallow sea turf bed of claim 4, wherein: In step 4, after the sowing container is scattered into the seaweed bed area to be recovered, the elastic sheet is deformed downward under the pressure of seawater, the flow guide portion extends to the outside of the body, the flow guide channels are communicated with the cavity, seawater is poured into the cavity, and the seawater is mixed with the sowing mixture.

6. The method of facilitating recovery of a shallow sea turf bed of claim 5, wherein: In step 4, a plurality of sowing containers are provided, the plurality of sowing containers are arranged in the transverse and longitudinal directions, and connecting portions are arranged between adjacent sowing containers to connect the plurality of sowing containers into a ring-shaped container.

7. The method of facilitating recovery of a shallow sea turf bed of claim 6, wherein: Both the sowing container and the connecting portion are made of degradable materials.

8. The method of facilitating recovery of a shallow sea grass bed of claim 7, wherein: A plurality of sowing containers are also arranged in the transverse direction in the ring-shaped container, and connecting portions are arranged between adjacent sowing containers, so that the ring-shaped container and the sowing containers in the ring-shaped container form a mesh-shaped sowing container.

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