CN218789676U

CN218789676U - Ocean current shelters device based on sea grass seed restoration method

Info

Publication number: CN218789676U
Application number: CN202223284000.8U
Authority: CN
Inventors: 徐少春; 周毅; 张晓梅; 刘明杰
Original assignee: Institute of Oceanology of CAS
Current assignee: Institute of Oceanology of CAS
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-07
Anticipated expiration: 2032-12-08

Abstract

The utility model relates to a sea current sheltering device based on a sea grass seed restoration method, which comprises one or more sea current sheltering units arranged on the sea bottom, belonging to the technical field of ecological restoration and reconstruction for improving the coastal ecosystem community structure and the sea grass field; the ocean current refuge unit comprises a support rod and a plurality of bionic transparent plastic seaweed clusters which are sequentially arranged on the support rod at intervals; the bionic transparent plastic seaweed clusters are fixed on the supporting rods through the binding belts. The utility model discloses a sea current shelters device will effectively reduce and restore sea area sea current, avoids washing away the sea grass seed and unearthed kind seedling, provides a simple and convenient, quick, effectual method for the recovery or the reconstruction in sea grass field.

Description

Ocean current sheltering device based on sea grass seed restoration method

Technical Field

The utility model belongs to the technical field of improve the ecological remediation and the reconstruction of coastal waters ecosystem community structure, seaweed ground, specifically speaking is a ocean current refuges device based on seaweed seed restoration method.

Background

Sea grass is the only marine submerged angiosperm with underground roots and rhizomes in the world, has large-area distribution in coastal waters, and has main advantages of eel grass (Zostera marina) and Japanese eel grass (Zostera japonica) in northern temperate regions of China, belonging to the family of eel grass (Zosteraceae) and eel grass (Zostera) and mostly growing in areas with sediment mixed. When the continuous seaweeds are distributed in large areas, the continuous seaweeds are called as a seaweed bed, and the seaweed bed is the most basic and important community in an offshore marine ecosystem, can provide a nursery and a spawning site for consumers, has the functions of protecting dikes, reducing disasters, regulating climate and the like, and can also provide food sources for primary consumers. The bed of seaweed, coral reefs and mangrove are known as three typical marine ecosystems.

Sea grass degeneration is a worldwide recognized global problem, and the sea grass in China also faces a severe degeneration situation. While the ecological problems of the sea grass beds are becoming more serious, how to protect and repair the sea grass beds is also becoming the most urgent need at present. Under the large environment with increasingly severe global warming trend, with the continuous acceleration of the industrialization process of human beings, the activities of sea reclamation, destructive fishing, aquaculture, living pollution discharge and the like in the last thirty years directly influence the survival of seaweed, the invasion of the spartina alterniflora also causes the serious degradation of a seaweed bed, 29 percent of the seaweed disappears globally, and the disappearance speed is increasingly accelerated.

The seed method and the plant transplanting method are the main repairing means of the seaweed bed. The method for repairing the seaweed bed by utilizing the seed method can improve the genetic diversity of the repaired seaweed bed, has small destructiveness to the donor seaweed bed, and is worth advocating and developing. Although the seed method has achieved some success in repairing the seaweed bed, there are still some problems and weak points. In the degraded sea area of the seaweed, the sown seaweed seeds and the grown seedlings are washed out frequently due to the scouring action of tidal current and ocean current, so that the seeds and the seedlings are seriously lost, and the repair failure is caused. Therefore, it is necessary to solve the problem of low efficiency of repairing the seaweed bed by the seed method.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention is directed to a marine current shelter device based on a seaweed seed restoration method.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a sea flow shelter device based on a sea grass seed restoration method comprises one or more sea flow shelter units, wherein the sea flow shelter units are arranged on the sea bottom;

the ocean current refuge unit comprises a support rod and a plurality of bionic transparent plastic seaweed clusters which are sequentially arranged on the support rod at intervals;

the bionic transparent plastic seaweed clusters are fixed on the supporting rods through the binding belts.

The height of the bionic transparent plastic seaweed clusters is 50-80 cm.

The bionic transparent plastic seaweed clusters are made of polypropylene resin.

The lower ends of the bionic transparent plastic seaweed clusters are fixed on the supporting rods through binding belts, and the fixed distance between every two adjacent bionic transparent plastic seaweed clusters is 50-80 cm.

And the two ends of the supporting rod are fixed at the bottom of the sea through a steel peg.

Sea grass seeds or seedlings are buried in the seabed of the shelter units.

The utility model has the advantages that:

1. the utility model discloses a device is sheltered to ocean current utilizes bionical transparent plastic sea grass cluster buoyancy effect fluctuation in the sea water to wave, produces flexible viscous damping effect, reduces the sea water velocity of flow, slows down the scouring away of ocean current to the sea bed, avoids washing away the sea grass seed and unearthed seedling, provides a simple and convenient, quick, effectual method for the recovery or the reconstruction in sea grass field.

2. Simultaneously the utility model provides a facility device utensil detachability can retrieve reuse, therefore can practice thrift the cost, can not constitute the pollution to the sea area moreover, and the material that uses in the outer device in addition, like steel peg, bionical transparent plastic seaweed etc. can not constitute the pollution to marine environment.

3. The utility model discloses the device uses transparent material, does not shelter from kind of seedling illumination, and the seedling under the ocean current shelters can grow rapidly, forms the patch, and then develops into continuous seaweed bed, and then restores impaired coastal waters marine ecosystem, improves ecosystem's community structure. The restored seaweed bed is used as the only higher submerged plant on the earth, can fix carbon, improve water quality, prevent the loss of sediment on the seabed, and provide food and habitat for primary consumers.

Drawings

Fig. 1 is a schematic structural view of a marine current sheltering apparatus according to the present invention, which is based on a seaweed seed restoration method;

fig. 2 is a schematic structural view of another ocean current sheltering apparatus based on a seaweed seed restoration method according to the present invention;

figure 3 is a schematic view of a single shelter unit of the present invention;

in the drawing, 1 is a peg stake; 2 is a steel bar support rod; 3 is a ribbon; 4 is a bionic transparent plastic seaweed cluster; 5 is seaweed seed; and 6 is seaweed seedlings.

Detailed Description

The present invention will be described in further detail with reference to examples.

As shown in fig. 1-3, the present invention provides a marine current shelter device based on a sea grass seed restoration method, comprising one or more marine current shelter units, wherein the marine current shelter units are arranged on the seabed; the ocean current refuge unit comprises a support rod 2 and a plurality of bionic transparent plastic seaweed clusters 4 which are sequentially arranged on the support rod 2 at intervals; the bionic transparent plastic seaweed clusters 4 are fixed on the support rods through the binding belts; the sea floor between the shelter units is buried with sown seaweed seeds 5 or grown seedlings 6.

As shown in figures 1-3, in the embodiment of the present invention, the height of the bionic transparent plastic seaweed cluster 4 is 50-80 cm.

Specifically, the bionic transparent plastic seaweed cluster 4 is made of polypropylene resin.

The embodiment of the utility model provides an in, the both ends of bracing piece 2 are fixed in the seabed through steel peg 1. The lower ends of the bionic transparent plastic seaweed clusters 4 are fixed on the support rods 2 by binding belts, and the fixed distance between two adjacent bionic transparent plastic seaweed clusters 4 is 50-80 cm.

The utility model provides a pair of ocean current shelters device based on sea grass seed restoration method, its embodiment is:

fixing the bionic transparent plastic seaweed clusters 4 on the support rod 2 by using a binding belt at intervals of 50-80 cm, wherein the height of the bionic transparent plastic seaweed clusters 4 is 50-80 cm, the material is polypropylene resin, and in a seaweed seed sowing sea area, fixing two ends of the support rod 2 fixed with the bionic transparent plastic seaweed clusters 4 on the sea bottom through a steel peg 1.

In this embodiment, the support rod 2 has a length of 5m, the steel peg 1 has a length of 20 cm, and the distance between the ocean current shelter units is 1 m.

Example one

In 10 months in 2020, the sea current sheltering device based on the sea grass seed restoration method provided by the utility model is applied to a certain bay in the north of the river and used for carrying out the ecological restoration test of the eel grass fields.

In the ocean current shelter units, the length of each support rod 2 is 5 meters, ten bionic transparent plastic sea grass clusters 4 are averagely arranged on the steel bars 2, the five ocean current shelter units are arranged in parallel, the distance between every two ocean current shelter units is 1 meter, a transplantation block is formed, the distance between every two transplantation blocks is 5 meters, and the transplantation scale is more than 10 hectares.

The seeds of the sea grass repairing project are collected from the sea grass bed in the sea area, the specific gravity of the used seeds is more than 1.2, and the activity of the seeds is determined to be 95%. The method for sowing the seaweed seeds is a mud pill sowing method, the sea mud used for making the mud pills is taken from the coastal sea area of Tangshan, the organic matter content of the sea mud is 6.5%, the sea mud with the grain diameter of less than 100 mu m is sieved by a sieve, and the sea mud and the seawater are mixed according to the weight ratio of 3: mixing the materials with a specific gravity of 1 percent, wherein the water content of the mud ball is 24 percent, wrapping 20 high-quality eel seeds with sea mud to prepare mud pills with the diameter of 15mm, wherein the seeds in the mud pills are about 3mm away from the surface of the mud pills, and burying the mud pills to a region to be repaired, wherein the burying depth is 2-5cm. The test results are as follows:

the observation is carried out in 2021 in 4 months, the sown eel grass seeds begin to germinate, the collected seedlings are in good state, the seedling establishment rate is high and reaches 24-31%; stable seaweed plaques had formed, observed in 8 months 2021; in 2022, in 5 months, the sea weeds are in a continuous distribution state, and the ocean current shelter device is removed; in 2022, 11 months, the seaweed bed reached a steady state.

The test result of this embodiment shows, through the utility model provides a pair of ocean current refuge device based on sea grass seed restoration method, set up the effect that ocean current refuge device has the speed of flow of slowing down local ocean current and avoids sea grass seed and seedling to be washed out, reduced seed, seedling loss rate, promoted the rate of establishing of sea grass seedling, eel grass seed can take root and sprout smoothly in the seabed, solved the problem that sea grass seedling is established and is difficult to the field planting under the ocean current refuge state in-process; can efficiently repair the damaged seaweed bed in a proper sea area and establish a healthy offshore marine ecosystem.

The utility model provides a facility device possesses the detachability, can retrieve reuse, therefore can practice thrift the cost, can not constitute the pollution to the sea area moreover.

The utility model discloses the device uses transparent material, does not shelter from kind of seedling illumination, and the seed under the ocean current shelters can grow rapidly, forms the patch, and then develops into continuous seaweed bed, and then restores impaired coastal waters marine ecosystem, improves ecosystem's community structure. The restored seaweed bed is used as the only higher submerged plant on the earth, can fix carbon, improve water quality, prevent the loss of sediment on the seabed, and provide food and habitat for primary consumers.

The above description is only for the embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. A sea current sheltering device based on a sea grass seed restoration method is characterized by comprising one or more sea current sheltering units, wherein the sea current sheltering units are arranged on the sea bottom;

the ocean current shelter unit comprises a support rod (2) and a plurality of bionic transparent plastic seaweed clusters (4) which are sequentially arranged on the support rod (2) at intervals;

the bionic transparent plastic seaweed clusters (4) are fixed on the support rods (2) through binding tapes.

2. The marine current refuge device based on seaweed seed remediation of claim 1, wherein the biomimetic transparent plastic seaweed cluster (4) has a height of 50-80 cm.

3. The marine current refuge device based on seaweed seed remediation method of claim 1 or 2, wherein the bionic transparent plastic seaweed cluster (4) is made of polypropylene resin.

4. The ocean shelter device based on seaweed seed restoration method according to claim 1 or 2, wherein the lower ends of the bionic transparent plastic seaweed clusters (4) are fixed on the support rods (2) by binding belts, and the fixed distance between two adjacent bionic transparent plastic seaweed clusters (4) is 50-80 cm.

5. The ocean shelter apparatus for sea based on seaweed seed restoration according to claim 1, wherein both ends of the supporting rod (2) are fixed to the bottom of the sea by a steel peg (1).

6. The marine current refuge apparatus based on seaweed seed remediation of claim 1, wherein the sea floor between refuge units is buried with seaweed seeds (5) or seedlings (6).