CN217038316U - Ocean current sheltering device based on seaweed mud-pill sowing method - Google Patents
Ocean current sheltering device based on seaweed mud-pill sowing method Download PDFInfo
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- CN217038316U CN217038316U CN202220728117.1U CN202220728117U CN217038316U CN 217038316 U CN217038316 U CN 217038316U CN 202220728117 U CN202220728117 U CN 202220728117U CN 217038316 U CN217038316 U CN 217038316U
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Abstract
The utility model relates to a sea current sheltering device based on a seaweed mud-pill sowing method, which belongs to the technical field of improving the ecological community structure of offshore ecosystems and ecological restoration and reconstruction of seaweed farms, and comprises one or more sea current sheltering units arranged on the sea bottom; the ocean current sheltering unit comprises a supporting rod and a plurality of sheltering plates which are sequentially arranged on the supporting rod at intervals, the sheltering plates are vertically arranged, and each sheltering plate is provided with a sheltering cavity which is semi-surrounded along the circumferential direction; at least one mud pill containing seaweed seeds is buried in the sea bottom surrounded by the shelter cavity. The utility model discloses with the water current impact and the animal foraging of seed kind on seabed avoided seabed top layer, reduced the seed loss rate, the device has the detachability simultaneously, can retrieve reuse, therefore can practice thrift the cost.
Description
Technical Field
The utility model belongs to the technical field of improve the ecological remediation and the reconstruction in coastal waters ecosystem community structure, seaweed ground, specifically speaking is a ocean current refuges device based on seaweed mud-pill seeding 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 mainly has the advantages of eel grass (Zostera marina L.) and Japanese eel grass (Zostera japonica Ascherson & Graebner) belonging to the family of eel grass (Zosteraceae) and eel grass (Zostera) in northern temperate regions of China, and mostly grows in areas with sediment mixed with silt. 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 seaweed bed, coral reef 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. At present, eel and Japanese eel are mainly distributed in coastal sea areas of Shandong, Hebei and Liaoning province in China. Under the large environment with increasingly severe global warming trend, with the continuous acceleration of the human industrialization process, the activities of enclosing and filling the sea, destructively digging and catching, aquaculture, living and discharging pollution and the like for nearly thirty years, the survival of the seaweed is directly influenced, and the invasion of the spartina alterniflora leads to the serious degradation of the seaweed bed. 29% of the seaweed has disappeared, and the speed of disappearance is becoming increasingly greater, compared to the first seaweed record in 1879.
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. The seaweed seeds are small in mass and volume and are easy to continuously float along with the movement of ocean currents, so that the root pricking on the substrate is very difficult, the survival rate of the seeds in the sowing method is extremely low, and the seaweed seeds are easy to float to a water depth and a substrate area which is not suitable for the growth of the seaweed and cannot survive; although the seeds are planted in the gunny bags (gunny bag method), the seedling building rate can be high, but the seedlings are easy to be flushed out by sea currents or buried deeply by silt after the seedlings come out of the soil, the seedlings die, and the restoration fails. Therefore, the problem of low efficiency of repairing the seaweed bed by the seed method is urgently needed to be solved.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention provides a sea current sheltering device based on a seaweed mud-pill seeding method.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a sea current sheltering device based on a seaweed mud-pill seeding method comprises one or more sea current sheltering units, wherein the sea current sheltering units are arranged on the sea bottom;
the ocean current refuge unit comprises a supporting rod and a plurality of refuge protection plates which are sequentially arranged on the supporting rod at intervals;
the shielding plate is vertically arranged and is provided with a shielding cavity which is semi-surrounded along the circumferential direction; at least one mud pill containing seaweed seeds is buried in the sea bottom surrounded by the shelter cavity.
The shelter protection plate is of a V-shaped structure with a side opening, the opening angle is 55-65 degrees, and the lower end of the shelter protection plate is inserted into the seabed.
The shielding plate is made of PVC.
The support rod is made of steel bars, and two ends of each steel bar are fixed to the seabed through steel nails.
The reinforcing steel bars are arranged on the back surfaces of the shelter guard plates, the shelter guard plates are bound on the reinforcing steel bars through ropes, and the distance between every two adjacent shelter guard plates is 20-30 cm.
The mud pill is a sphere prepared by mixing sea mud and seawater, and the diameter of the sphere is 1-2 cm.
The water content of the mud pills is 25 +/-3%.
The mud pill contains 15-25 seaweed seeds.
The seaweed seeds are at least 3mm away from the outer surface of the mud pills.
The depth of the mud pills buried in the seabed is 2-5 cm.
The utility model has the advantages that:
1. the utility model discloses with the seed kind in the seabed, the rivers that have avoided seabed top layer are strikeed and the animal forages and eat, have reduced the seed loss rate, and the sea grass seed can take root smoothly in the seabed and sprout, has solved the problem that the sea grass seedling is built the in-process and is difficult to the field planting.
2. The utility model discloses a sea current shelters device will effectively reduce and restore sea area ocean current, avoids washing away unearthed kind of seedling, provides a simple and convenient, quick, effectual method for the recovery or the reconstruction in sea grass field.
3. Simultaneously 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, and the material that uses in the outer device in addition, like stainless steel frame, bionical transparent plastic seaweed, sea mud etc. can not constitute the pollution to marine environment.
4. The utility model discloses use the mud-pill method to resume the impaired sea grass bed of large tracts of land, can realize the extensive planting of sea grass simply effectively, and then restore impaired coastal waters marine ecosystem, improve 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 seabed silt and provide food and habitat for primary consumers.
Drawings
Fig. 1 is a schematic structural view of a sea current sheltering device based on a seaweed mud-pill sowing method of the present invention;
fig. 2 is a schematic structural view of the shelter plate of the present invention;
FIG. 3 is a schematic structural view of the reinforcing bar type mud ball of the present invention;
in the figure, 1 is a steel nail; 2 is a steel bar; 3 is mud pills; 4 is a shelter guard plate; 5 is seaweed seed.
Detailed Description
The present invention will be described in further detail with reference to examples.
As shown in fig. 1, the present invention provides a sea current sheltering device based on a seaweed mud-pill seeding method, which comprises one or more sea current sheltering units disposed on the sea bottom; the ocean current refuge unit comprises a support rod and a plurality of refuge protection plates 4 which are sequentially arranged on the support rod at intervals; the shielding plate 4 is vertically arranged, and the shielding plate 4 is provided with a shielding cavity which is semi-surrounded along the circumferential direction; at least one mud pill 3 containing seaweed seeds 5 is buried in the sea bottom surrounded by the shelter cavity.
In the embodiment of the present invention, as shown in fig. 2, the shelter plate 4 is a side-open V-shaped structure with an opening angle of 55-65 °, and the lower end of the shelter plate 4 is inserted into the sea bottom to improve the stability of the shelter plate 4.
Specifically, the shelter plate 4 is made of PVC.
The embodiment of the utility model provides an in, the bracing piece adopts reinforcing bar 2, and the both ends of reinforcing bar 2 are fixed in the seabed through steel nail 1. The reinforcing steel bars 2 are arranged on the back surfaces of the shelter plates 4, the shelter plates 4 are bound on the reinforcing steel bars 2 through ropes, and the distance between every two adjacent shelter plates 4 is 20-30 cm.
As shown in figure 3, in the embodiment of the present invention, the mud ball 3 is a sphere made of sea mud and seawater, the diameter of the sphere is 1-2cm, and the water content of the mud ball 3 is 24%.
Furthermore, the mud pills 3 contain 15-25 seaweed seeds 5, and the seaweed seeds 5 are at least 3mm away from the outer surfaces of the mud pills 3. The depth of the mud pills 3 buried in the seabed is 2-5 cm.
The utility model provides a pair of ocean current shelters device based on seaweed mud-pill seeding method, its embodiment is:
the ocean current shelter device is fixed in the sea area to be repaired, a plurality of shelter plates 4 are fixed on the reinforcing steel bars 2 at intervals of 20-30cm, and the shelter plates 4 are PVC plates with 60-degree open angles. Wrapping a certain amount of high-quality seaweed seeds 5 with a certain amount of sea mud to obtain mud pills 3. Specifically, the mud pill 3 is prepared by mixing sea mud and seawater according to the ratio of 3: mixing well with a specific gravity of 1, making the mixed sea mud into a sphere with a diameter of 1-2cm, and wrapping 15-25 seaweed seeds 5 in the sphere. The specific gravity of the seaweed seed 5 is more than 1.2, and the activity of the seed is higher than 90%. The content of organic matters in the sea mud is 5-10%, and the particle size of the sea mud is less than 100 mu m. In the mud pill preparation process, the distance between the seeds and the surface of the mud pill is at least 3mm, and the water content of the mud pill is 20-30%. The mud pills 3 are buried to the seabed surrounded by the shelter plate 4, the seaweed seeds 5 can be buried to the seabed along with the mud pills, and the burying depth of the mud pills 3 is 2-5 cm.
In this embodiment, the height of the shelter plate 4 is 15cm, the length of one side is 6cm, the lower end of the shelter plate is inserted into the seabed and fixed, and the shelter plate 4 is bound with the reinforcing steel bars 2 by a binding belt, so that the stability of the shelter plate is improved.
In northern temperate zone of China, the main dominant species are eel and Japanese eel, and eel is taken as an example for detailed description.
Example one
The utility model provides a sea current shelters device based on seaweed mud-pill seeding method has carried out eel grass sea grass field ecological remediation experiment at a certain bay in the north of river application.
In the ocean current shelter unit, the length of each steel bar 2 is 1.4m, and six shelter plates 4 are arranged on the steel bars 2. The six rows of ocean current shelter units are arranged in parallel to form a transplantation block, the distance between the transplantation blocks is 5m, and the transplantation scale is more than 50 hectares.
The seeds of the seaweed repairing project are collected from the seaweed bed in the sea area, the specific gravity of the seeds is more than 1.2, and the activity of the seeds is determined to be 95%. The sea mud used for making the mud pills is taken from the offshore area of Tangshan, the organic matter content of the sea mud is 6.5 percent, 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: 1, the mixture is fully mixed, and the water content of the mud balls is 24 percent. Wrapping 20 high-quality eel grass seeds with sea mud, and making into mud pills with diameter of 15mm, wherein the distance between the seeds in the mud pills and the surface of the mud pills is about 3 mm. Burying the mud pills in the area to be repaired near the bank of Tangshan with a burying depth of 2-5 cm.
The test results are as follows:
in 2021, in 4 months, the sown eel grass seeds start to germinate, the collected seedlings are in a good state, the seedling establishment rate is high and reaches up to 18-27%; observations made in 8 months of 2021 have formed stable seaweed plaques.
The test result of this embodiment shows, through the utility model provides a sea current shelter device based on sea grass mud pill seeding method, plant the seed in the seabed, avoided the rivers on seabed top layer to strike and the animal forages, reduced the seed loss rate, eel grass seed can take root and sprout smoothly in the seabed, solved the sea grass seedling and built the problem that the in-process is difficult to the field planting; 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 use the mud ball method to resume the impaired sea grass bed of large tracts of land, can realize the extensive planting of eel grass simply effectively, and then restore impaired coastal waters marine ecosystem, improve 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 seabed silt 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 (10)
1. A sea current sheltering device based on a seaweed mud-pill seeding 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 refuge unit comprises a supporting rod and a plurality of refuge protection plates (4) which are sequentially arranged on the supporting rod at intervals;
the sheltering protection plate (4) is vertically arranged, and the sheltering protection plate (4) is provided with a sheltering cavity which is semi-surrounded along the circumferential direction; at least one mud pill (3) containing seaweed seeds (5) is buried in the seabed surrounded by the shelter cavity.
2. The marine current shelter based on seaweed mud-pellet seeding as claimed in claim 1, wherein the shelter (4) is a V-shaped structure with side opening, and the opening angle is 55-65 °, and the lower end of the shelter (4) is inserted into the sea bottom.
3. Sea current shelter based on seaweed mud-pellet seeding as claimed in claim 1 or 2, wherein the shelter (4) is made of PVC.
4. The ocean current shelter device based on the seagrass mud-pellet seeding method as claimed in claim 1, wherein the support rod is made of steel bars (2), and both ends of the steel bars (2) are fixed to the sea bottom by steel nails (1).
5. The ocean current shelter based on seaweed mud-ball sowing method according to claim 4, wherein the steel bars (2) are arranged on the back surface of the shelter plate (4), the shelter plate (4) is bound on the steel bars (2) through ropes, and the distance between every two adjacent shelter plates (4) is 20-30 cm.
6. Sea current shelter based on sea grass mud-pill seeding method according to claim 1, wherein the mud pills (3) are spheres made of sea mud and sea water mixed, and the sphere diameter is 1-2 cm.
7. Sea current shelter based on the sowing of seaweed mud pills according to claim 6, characterized in that the water content of the mud pills (3) is 25 ± 3%.
8. Sea current sheltering device based on the sowing of seaweed mud-pellet, according to claim 6, characterized in that the mud-pellet (3) contains 15-25 seaweed seeds (5) inside.
9. Sea current sheltering device based on the sowing of seaweed mud-pills according to claim 8, characterized in that the seaweed seeds (5) are at least 3mm from the outer surface of the mud-pills (3).
10. Sea current shelter based on the sowing of seaweed mud pills according to claim 9, characterized in that the mud pills (3) are buried at a depth of 2-5cm in the sea bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220728117.1U CN217038316U (en) | 2022-03-28 | 2022-03-28 | Ocean current sheltering device based on seaweed mud-pill sowing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220728117.1U CN217038316U (en) | 2022-03-28 | 2022-03-28 | Ocean current sheltering device based on seaweed mud-pill sowing method |
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| CN217038316U true CN217038316U (en) | 2022-07-26 |
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| CN202220728117.1U Active CN217038316U (en) | 2022-03-28 | 2022-03-28 | Ocean current sheltering device based on seaweed mud-pill sowing method |
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- 2022-03-28 CN CN202220728117.1U patent/CN217038316U/en active Active
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