Biological reef structure for transplanting sea grass and transplanting method

Abstract

The invention relates to a biological reef structure for transplanting sea grass and a transplanting method. The method is suitable for the technical field of marine ecological protection and restoration. The technical problem to be solved by the invention is to provide a biological reef structure for transplanting sea grass and a transplanting method. According to the technical scheme, the biological reef structure for transplanting the sea grass is characterized in that the biological reef structure comprises a biological reef single body which is of a triangular structure, a hollow frame is arranged on the surface of the top of the biological reef single body, and the hollow frame is used for providing a growth space of the sea grass and a cultivation and inhabitation environment of marine organisms; a plurality of through holes used for binding seaweed rhizomes are formed in the bottoms of the biological reef single bodies; the sea grass bed is arranged in the hollow-out frame, and planting covering soil capable of covering rhizomes of the sea grass bed is arranged in the hollow-out frame; the stabilizing piles are arranged at the bottoms of the single biological reef bodies, and the stabilizing piles are used for being inserted into the seabed to stabilize the single biological reef bodies.

Description

Technical Field

[0001] The invention relates to the technical field of marine ecological protection and restoration, in particular to a bioreef structure for transplanting seaweed and a transplanting method. Background Art

[0002] Seagrass is the only type of angiosperm on Earth that can live entirely in seawater. Seagrass beds, mangroves and coral reefs are known as the three major typical marine ecosystems on Earth. Seagrass beds are an important target for the protection of global marine ecosystems and biodiversity, an important symbol of a healthy marine environment, and a precious "undersea grassland" or "undersea forest." Seagrass beds have important ecological functions, such as habitats and food sources for fishery organisms and rare species, water purification and nutrient recycling, embankment disaster reduction, and climate regulation.

[0003] However, human activities (such as reclamation, port construction, artificial pollution, marine aquaculture, channel dredging, etc.) have intensified the disturbance of offshore habitats and the multiple effects of natural factors such as global change, leading to the large-scale decline of seagrass beds, the instability of benthic habitats, and serious threats to the survival of other marine organisms. Although seagrass has a strong ability to self-propagate, the recovery rate of degraded seagrass bed ecosystems is slow if it relies solely on the self-colonization of seagrass beds. Therefore, in the process of seagrass bed restoration, effective artificial intervention measures must be supplemented to promote the rapid establishment of seagrass beds and achieve the healthy development of seagrass bed ecosystems. Up to now, in the protection and restoration technology of offshore marine ecology, single species restoration, such as seagrass bed ecological restoration, mangrove ecological restoration, oyster reef ecological restoration, etc., are all based on the restoration of single species and single habitats. There are few multi-habitat and multi-species ecological restoration technologies. The multi-habitat approach has been proven to enhance the resilience of restored plots to natural disturbances and accelerate the natural succession process beyond the restoration of single species.

[0004] Therefore, it is necessary to provide a marine ecological restoration structure to create a variety of different marine habitats, provide a place for marine life to survive, rejuvenate and conserve marine life, repair the problem of offshore marine life degradation, and protect and improve marine biodiversity. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in view of the above-mentioned existing problems, a bioreef structure for transplanting seaweed and a transplanting method are provided.

[0006] The technical solution adopted by the present invention is: a bioreef structure for transplanting seaweed, characterized in that it comprises:

[0007] The bioreef monomer has a triangular structure, and a hollow frame is provided on the top surface of the bioreef monomer, and the hollow frame is used to provide a growth space for seaweed and a cultivation and habitat environment for marine organisms. The bottom of the bioreef monomer is provided with a plurality of through holes for tying seaweed rhizomes;

[0008] A seaweed bed is arranged in the hollow frame, and a planting covering soil capable of covering the rhizomes of the seaweed bed is arranged in the hollow frame;

[0009] A stabilizing pile is arranged at the bottom of the bioherm monomer, and the stabilizing pile is used to be inserted into the seabed to stabilize the bioherm monomer.

[0010] Through the above-mentioned technical means, a hollow frame is provided on the top of the bioreef unit, which can provide growth space for seaweed. At the same time, the hollow frame can facilitate the cultivation of marine life and provide a habitat for marine life, so that a multi-habitat habitat is created in the bioreef unit, thereby rejuvenating and conserving marine life.

[0011] In some embodiments, the seaweed bed uses lush and well-growing seaweed rhizome transplant units, and the seaweed rhizome transplant units use 2 to 3 plants per unit.

[0012] In some embodiments, the seagrass species of the seagrass bed are native dominant species, including salt-loving grass and eel grass.

[0013] In some embodiments, a plurality of the bioherm monomers can be spliced ​​together to form a bioherm unit.

[0014] In some embodiments, the bioreef monomer, the hollow frame and the stabilizing piles are all made of environmentally friendly low-alkalinity, porous, and bio-adhesive marine ecological concrete.

[0015] In some embodiments, the planting covering soil is made of silty clay-fine sand mud.

[0016] Another technical solution adopted by the present invention is: a method for transplanting a bioreef structure of seaweed, characterized in that it comprises the following steps:

[0017] S1. Cultivation: Tie the fresh seaweed rhizome transplant unit to the bottom through hole of the bioreef unit, fill the planting cover soil into the bioreef unit, and the planting cover soil should completely cover the seaweed rhizome at the bottom of the bioreef unit and compact it; place the bioreef unit in the offshore aquaculture area for cultivation, put in oyster seedlings, wait for the shellfish larvae on the surface of the bioreef unit to plant, and at the same time rejuvenate the survival rate of the seaweed transplant;

[0018] S2. Deployment: Before the seagrass breeding season, the cultivated and mature bio-reef monomers will be installed in the designated marine restoration area. During installation, the stabilizing piles at the bottom of the bio-reef monomers will be inserted into the seabed;

[0019] S3. Monitoring: Monitor before, during and after delivery.

[0020] Through the above-mentioned technical means, seagrass rhizome transplant units are laid in the hollow frame of the bioreef monomer, so that the seagrass bed can have sufficient space for reproduction and growth, and the bioreef monomer is placed in the offshore aquaculture area for cultivation, so that the bioreef monomer can form a habitat for marine organisms such as oyster seedlings, thereby constructing multiple marine organisms' habitats and increasing the complexity of the ecosystem.

[0021] In some embodiments, in step S1, when the planting soil covers the seaweed, 2 / 3 of the seaweed rhizomes are kept above the upper bottom surface of the bioherm monomer, and the remaining 1 / 3 of the seaweed rhizomes are exposed from the lower bottom surface of the bioherm monomer.

[0022] In some embodiments, in step S2, when installing the stabilizing piles, ensure that the bottom of the bioherm monomer is higher than the seabed surface to reserve a certain amount of settlement space.

[0023] In some embodiments, in step S3, the monitoring content includes water environment, sediment environment, and biological environment ecosystem health assessment.

[0024] The beneficial effects of the present invention are:

[0025] 1. Through the hollow frame inside the bioreef unit, a growth and reproduction space is provided for the seagrass bed, and the bioreef unit is placed in the offshore aquaculture area for cultivation, so that the surface of the bioreef is attached with oysters and other marine biological seedlings, and the hollow frame can simultaneously become a habitat for marine organisms. Compared with the traditional habitat restoration of a single species, this structure restores multiple marine biological habitats through multi-habitat construction, increasing the complexity of the ecosystem. The coexistence of multiple habitats can form a more stable and resilient ecosystem.

[0026] 2. By splicing multiple reef units to form a reef unit, the stability of the overall structure can be improved, which is also conducive to dispersing wave energy and promoting the healthy development of biodiversity and ecosystems. In the reef unit, the oyster reef formed can absorb wave energy, stabilize sediments, and promote seagrass recovery. Seagrass beds provide habitats for a variety of organisms while also providing predation opportunities for oyster reefs. The roots of seagrass beds can reduce the suspension of sediments, provide a stable bottom environment for oyster reefs, and help oysters attach and grow; the decomposition of organic matter in seagrass beds can provide nutrients for oyster reefs and promote the circulation of nutrients in the ecosystem. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of this application.

[0028] Figure 2 It is a schematic diagram of the structure of the bioherm unit in this application.

[0029] Description of reference numerals:

[0030] 1. Bioherm monomer; 2. Hollow frame; 4. Through hole; 6. Stabilizing pile.

[0031] This specification includes references to "one embodiment" or "an embodiment." The appearance of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. The particular features, structures or characteristics may be combined in any suitable manner consistent with the present disclosure.

[0032] The term "comprising" is open ended. As used in the appended claims, the term does not exclude additional structures or steps. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with specific embodiments.

[0034] Embodiment 1:

[0035] Combination Figure 1 to Figure 2 As shown, this embodiment is a bioreef structure for transplanting seaweed, including a bioreef monomer 1, a hollow frame 2, a seaweed bed and a stabilizing pile 6. In this embodiment, the bioreef monomer 1 is a triangular structure, and a hollow frame 2 is provided on the top surface of the bioreef monomer 1. A seaweed bed and planting covering soil are provided in the hollow frame 2. The planting covering soil can cover the rhizomes of the seaweed bed, and the hollow frame 2 is used to provide a growth space for seaweed and a cultivation and habitat environment for marine organisms. A plurality of through holes 4 are provided at the bottom of the bioreef monomer 1, and the through holes 4 are used to tie the rhizomes of seaweed. A stabilizing pile 6 is also provided at the bottom of the bioreef monomer 1, and the bioreef monomer 1 can be stabilized by inserting the stabilizing pile 6 into the seabed.

[0036] Furthermore, the hollow frame 2 has a criss-cross hollow structure. On the one hand, the hollow frame 2 can provide lateral and vertical growth space for the well-developed root system of seaweed. On the other hand, the hollow frame 2 can provide an attachment habitat for fixed and attached marine organisms such as oysters.

[0037] Furthermore, the stabilizing pile 6 is connected to the corner of the bottom of the biological reef monomer 1. On the one hand, the stabilizing pile 6 is inserted into the seabed such as clay silt during use to stabilize the biological reef monomer 1 and resist wind and wave erosion. The overall structure has a certain anti-subsidence burial and lateral displacement function. On the other hand, it is also convenient for modular splicing of different marine ecological restoration areas in engineering.

[0038] In some embodiments, the seagrass bed uses lush and healthy seagrass rhizome transplant units, with 2 to 3 plants per unit, and the bottom material and other impurities attached to the seagrass rhizome are washed off in seawater. Among them, the seagrass species of the seagrass bed are local dominant species near the engineering sea area, including salt-loving grass, eel grass, etc.

[0039] Furthermore, the through holes 4 are provided at the bottom of the bioherm monomer 1. On the one hand, the through holes 4 can stabilize the rhizomes of the seaweed to prevent tidal erosion, and on the other hand, they also provide a vertical growth environment for the fixation of the seaweed underground rhizomes, which is conducive to the rooting and fixation of seaweed transplanted plants and seedlings.

[0040] Furthermore, the planting covering soil is made of silty clay-fine sand mud to provide a growth substrate for the seaweed roots, and the reef monomer 1, the hollow frame 2 and the stabilizing piles 6 are all made of environmentally friendly low-alkalinity, porous, and bio-adhesive marine ecological concrete.

[0041] Furthermore, after the seaweed rhizomes are tied up with hemp ropes, fine sand, clay and water are evenly mixed with planting covering soil to form a mud blank which is filled into the bioherm monomer 1.

[0042] In some embodiments, such as Figure 2 As shown, multiple bioherm monomers 1 can be spliced ​​to form a bioherm unit. Specifically, in this embodiment, six bioherm monomers 1 can form a hexagonal bioherm unit. This not only increases the stability of a single bioherm monomer 1, but also helps to disperse wave energy, while promoting the healthy development of biodiversity and ecosystems.

[0043] Embodiment 2:

[0044] This embodiment is a method for transplanting a bioreef structure of seaweed, comprising the following steps:

[0045] S1, cultivation: tie the fresh seaweed rhizome transplanted within 1 to 2 days to the bottom through hole 4 of the reef monomer 1, fill the planting cover soil into the reef monomer 1, and the planting cover soil should completely cover the rhizome of the seaweed at the bottom of the reef monomer 1 and compact it; place the reef monomer 1 in the offshore aquaculture area for cultivation, put in oyster seedlings, wait for the shellfish larvae on the surface of the reef monomer 1 to settle, and at the same time rejuvenate the survival rate of the seaweed transplantation;

[0046] S1.1. When planting and covering seaweed with soil, keep 2 / 3 of the seaweed rhizomes above the upper bottom surface of the reef unit 1, and the remaining 1 / 3 of the seaweed rhizomes exposed to the lower bottom surface of the reef unit 1;

[0047] S2. Deployment: Before the seagrass breeding season, the cultivated and mature bio-reef monomer 1 is installed in the designated marine restoration area. During the installation, the stabilizing pile 6 at the bottom of the bio-reef monomer 1 is inserted into the seabed;

[0048] S2.1. When installing the stabilizing pile 6, ensure that the bottom of the bio-reef monomer 1 is slightly higher than the seabed surface to reserve a certain amount of settlement space;

[0049] S3. Monitoring: Monitoring before, during and after delivery;

[0050] S3.1. Monitoring contents include water environment, sediment environment, and biological environment ecosystem health assessment.

[0051] In this embodiment, multiple marine habitats are restored through multi-habitat construction to increase the complexity of the ecosystem. The coexistence of multiple habitats can form a more stable and resilient ecosystem. Seagrass and oyster reefs are interdependent and complementary in ecological functions. Oyster reefs can purify seawater by filtering suspended particles in the water, increase the photosynthesis of seagrass, and contribute to the healthy growth of seagrass beds. Oyster reefs can reduce the impact of waves and protect seagrass beds from damage through their complex three-dimensional structures. Seagrass beds are also habitats for oysters and other filter-feeding animals. The biodiversity of oyster reefs attracts predators and foragers, forming a complex ecosystem. As the restoration time increases, a healthy and biodiverse ecosystem is gradually formed.

[0052] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bioreef structure for transplanting seaweed, characterized in that: include: The bioreef monomer (1) has a triangular structure. The top surface of the bioreef monomer (1) is provided with a hollow frame (2). The hollow frame (2) is used to provide a growth space for seaweed and a cultivation and habitat environment for marine organisms. The bottom of the bioreef monomer (1) is provided with a plurality of through holes (4) for tying seaweed rhizomes. A seaweed bed is arranged in the hollow frame (2), and a planting covering soil capable of covering the rhizomes of the seaweed bed is arranged in the hollow frame (2); A stabilizing pile (6) is arranged at the bottom of the bioherm monomer (1), and the stabilizing pile (6) is used to be inserted into the seabed to stabilize the bioherm monomer (1).

2. The bioreef structure for transplanting seaweed according to claim 1, characterized in that: The seaweed bed adopts seaweed rhizome transplanting units with lush growth and good growth potential, and the seaweed rhizome transplanting units adopt 2 to 3 plants per unit.

3. The bioreef structure for transplanting seaweed according to claim 1, characterized in that: The seagrass species of the seagrass bed are native dominant species, including salt-loving grass and eel grass.

4. The bioreef structure for transplanting seaweed according to claim 1, characterized in that: A plurality of the bioherm monomers (1) can be spliced ​​together to form a bioherm unit.

5. The bioreef structure for transplanting seaweed according to claim 1, characterized in that: The bioreef monomer (1), the hollow frame (2) and the stabilizing pile (6) are all made of environmentally friendly low-alkalinity, porous, and bio-adhesive marine ecological concrete.

6. The bioreef structure for transplanting seaweed according to claim 1, characterized in that: The planting covering soil adopts silty clay-fine sand mud.

7. A method for transplanting a bioreef structure for transplanting seaweed according to any one of claims 1 to 6, characterized in that: The steps include: S1. Cultivation: tie the fresh seaweed rhizome transplant unit to the bottom through hole (4) of the bioreef monomer (1), fill the planting cover soil into the bioreef monomer (1), and the planting cover soil should completely cover the seaweed rhizome at the bottom of the bioreef monomer (1) and be compacted; place the bioreef monomer (1) in an offshore aquaculture area for cultivation, put in oyster seedlings, wait for the shellfish larvae on the surface of the bioreef monomer (1) to seed, and at the same time rejuvenate the survival rate of the seaweed transplant; S2. Deployment: Before the seagrass breeding season, the cultivated and mature bio-reef monomer (1) is installed in the designated marine restoration area. During the installation, the stabilizing pile (6) at the bottom of the bio-reef monomer (1) is inserted into the seabed; S3. Monitoring: Monitor before, during and after delivery.

8. The method for transplanting a bioreef structure for transplanting seaweed according to claim 7, characterized in that: In step S1, when the seaweed is covered with soil, 2 / 3 of the seaweed rhizomes are kept above the upper bottom surface of the bioherm monomer (1), and the remaining 1 / 3 of the seaweed rhizomes are exposed from the lower bottom surface of the bioherm monomer (1).

9. The method for transplanting a bioreef structure for transplanting seaweed according to claim 7, characterized in that: In step S2, when installing the stabilizing piles (6), ensure that the bottom of the bioherm monomer (1) is higher than the seabed surface to reserve a certain amount of settlement space.

10. The method for transplanting a bioreef structure for transplanting seaweed according to claim 7, characterized in that: In step S3, the monitoring contents include water environment, sediment environment, and biological environment ecosystem health assessment.

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