Seaweed transplantation method

Abstract

The present invention provides a seagrass transplanting method, belonging to the field of seagrass bed restoration technology, comprising the following steps: S1: collecting seedlings, digging them out with a shovel, removing any mud carried by the seedlings, and ensuring that the seedlings' root systems are clean and intact; S2: wrapping the roots of the collected seedlings with sea mud to form transplants; S3: digging a transplanting pit at a designated transplanting location, placing the transplants into the pit, ensuring that the sea mud wrapped around the transplants is completely within the pit, and then burying the pit to complete the transplanting operation. The seagrass transplanting method provided by the present invention provides maximum protection for the seedlings' root systems, and the transplanted seedlings are less susceptible to drift caused by water disturbances, thereby significantly improving the transplant survival rate of the seedlings.

Description

Technical Field

[0001] The invention belongs to the technical field of seaweed bed restoration, and more particularly relates to a seaweed transplantation method. Background Art

[0002] Seagrass is a higher marine plant that not only provides strong primary productivity but also possesses powerful ecological functions. Seagrass beds formed by large areas of seagrass are considered one of the three most prominent marine ecosystems, along with coral reefs and mangroves. Currently, due to the impact of human activities and changes in the natural environment, nearly one-third of seagrass bed ecosystems have degraded and disappeared. Currently, seagrass bed restoration is primarily achieved through seagrass transplantation. However, the marine environment frequently changes, and large-scale seagrass transplantation is susceptible to water disturbances, which can damage the roots and leaves of the transplanted seagrass plants, and may even uproot them. This results in a generally low survival rate for seagrass transplants. Summary of the Invention

[0003] The purpose of the present invention is to provide a seaweed transplantation method, aiming to solve the problem of low survival rate of seaweed transplantation in large areas.

[0004] To achieve the above object, the technical solution adopted by the present invention is to provide a seaweed transplantation method, comprising the following steps:

[0005] S1: Collect seedlings, dig them out with a shovel, remove the mud carried by the seedlings, and make sure the root system of the seedlings is clean and intact;

[0006] S2: Wrap the roots and lower part of the stems of the collected seedlings with a layer of sea mud to form transplants;

[0007] S3: Dig a transplant pit at the designated transplant location, place the transplanted plants in the transplant pit, make sure the sea mud wrapped around the transplanted plants is completely inside the transplant pit, bury the transplant pit, and complete the transplant operation.

[0008] In one possible implementation, in step S1, when collecting seedlings, the shovel is inserted downward into the mud and sand from 4-5 cm away from one side of the seedling, with the tip of the shovel tilted toward the seedling, the angle between the tip of the shovel and the horizontal plane is between 70°-80°, and the insertion depth of the shovel tip is not less than 7 cm. The shovel is operated to rotate around the seedling once to dig out the seedling and the mud around the seedling.

[0009] In one possible implementation, the dug seedlings are stacked in a turnover box having through holes on the bottom and side walls. The turnover box is placed in a cleaning tank of an ultrasonic cleaning machine to clean the seedlings.

[0010] In a possible implementation, the cleaning liquid in the cleaning tank is a mixture of seawater and potassium permanganate, the mass ratio of the seawater to the potassium permanganate is 3000:1-8000:1, and the temperature of the cleaning liquid is between 20°C and 30°C.

[0011] In a possible implementation, before step S2, the transverse roots of the seedlings are trimmed to a total length of 3-5 cm, and the longitudinal roots of the seedlings are wrapped around the transverse roots.

[0012] In a possible implementation, the following steps are used to wrap the sea mud around the seedlings:

[0013] Step a: Take part of the dry sea mud powder and add it to sea water to stir it into thin mud, so that the viscosity of the thin mud is maintained between 1×105-3×105cps;

[0014] Step b: Immerse the roots of the seedlings and at least one-fifth of the stem into the mud, let it stand for 3-5 seconds, and then take it out;

[0015] Step c: taking part of the dry sea mud powder and sprinkling it on the roots and stems covered with thin mud to form a sea mud crust on the roots and stems;

[0016] Step d: Repeat steps b to c multiple times to form transplants.

[0017] In a possible implementation, after step d is completed, a counterweight is added to the sea mud shell of the transplant.

[0018] In a possible implementation, the counterweight is a stone embedded in the circumference of the sea mud crust, with half of the stone embedded in the sea mud crust and the other half located outside the sea mud crust.

[0019] In a possible implementation, in step 3, before placing the transplanted plants into the transplanting pit, a layer of sea mud is laid at the bottom of the transplanting pit, and after the transplanted plants are fixed on the sea mud layer, the transplanting pit is buried.

[0020] In one possible implementation, before placing the transplanted plant in the transplant pit, the direction of the water flow at the transplant site is first determined. When the transplanted plant is placed in the pit, the direction of the end of the sea mud shell away from the stem of the transplanted plant is consistent with the direction of the water flow, and the end of the sea mud shell away from the stem of the transplanted plant is tilted downward, with an inclination angle between 10° and 15°.

[0021] The beneficial effects of the seaweed transplantation method provided by the present invention are as follows: compared with the existing technology, the seaweed transplantation method of the present invention uses sea mud to wrap the root system of the seedlings. First, the sea mud protects the root system of the seedlings and prevents the root system of the seedlings from being damaged. Second, the sea mud can also provide the nutrients required for the growth of the seedling roots. Third, the sea mud increases the weight of the seedling roots, making the seedlings less susceptible to drifting due to disturbances of the water flow, thereby greatly improving the transplantation survival rate of the seedlings. After actual planting verification, after using the method of the present invention to transplant seaweed, the survival rate of the seaweed seedlings increased from the original 20%-30% to more than 85%, greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A diagram showing the steps of a seaweed transplantation method according to an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the structure of a seedling provided by an embodiment of the present invention;

[0025] Figure 3 Schematic diagram of a transplanted plant provided by an embodiment of the present invention being placed in a transplanting pit.

[0026] Description of reference numerals:

[0027] 1. Seedlings; 101. Horizontal roots; 102. Vertical roots; 2. Transplants; 201. Sea mud shells; 3. Transplant pit. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] See also Figure 1 The seaweed transplantation method provided by the present invention is now described. The seaweed transplantation method comprises the following steps:

[0030] S1: Collect seedlings, dig them out with a shovel, remove the mud carried by the seedlings, and make sure the root system of the seedlings is clean and intact;

[0031] S2: Wrap the roots and lower part of the stems of the collected seedlings with a layer of sea mud to form transplants;

[0032] S3: Dig a transplant pit at the designated transplant location, place the transplanted plants in the transplant pit, make sure the sea mud wrapped around the transplanted plants is completely inside the transplant pit, bury the transplant pit, and complete the transplant operation.

[0033] Among them, in step S1, when collecting seedlings, first determine the direction of the horizontal roots of the seedlings, and use a shovel to cut off the horizontal roots from 4-5 cm away from the seedlings. When digging out the seedlings, the shovel is inserted downward into the mud and sand from 4-5 cm away from one side of the seedlings, with the shovel tip tilted toward the seedlings, and the angle between the shovel tip and the horizontal plane is between 70°-80°, so that the depth of the shovel tip inserted into the mud and sand is not less than 7 cm, and the shovel is operated to rotate around the seedlings for one circle to dig out the seedlings and the mud around the seedlings. In actual production, one of the reasons for the low survival rate of seedlings is that the root system of the seedlings is damaged when the seedlings are collected, resulting in the death of the seedlings. In this embodiment, on the one hand, the horizontal roots of the seedlings are first cut off, which can reduce the pulling of the horizontal roots on the seedlings when the seedlings are dug out of the mud and sand, thereby reducing damage to the seedlings. On the other hand, the excavation depth is set to below 7 cm, which is deep excavation, and the longitudinal roots of the seedlings can be retained at least 5 cm, reducing the degree of damage to the root system of the seedlings, thereby improving the survival rate of the seedlings.

[0034] In this embodiment, the mud and sand carried by the seedlings are easy to deteriorate and breed bacteria after leaving the sea water, which will damage the root system of the seedlings. Therefore, the dug seedlings need to be cleaned. The cleaning is divided into rough washing and fine washing. Among them, rough washing means that after the seedlings are dug out from the mud and sand, the roots of the seedlings need to be rinsed with sea water immediately at the work site to remove large pieces of mud; fine washing means that after the seedlings are collected into the weekly box, the mud or rotten things adhering to the roots of the seedlings are cleaned in depth. The specific steps of fine washing are as follows: First, First, the unearthed seedlings are uniformly stacked in a turnover box. The seedlings in the turnover box are stacked in only one layer. The bottom and side walls of the turnover box are provided with through holes. After the turnover box is filled with seedlings, the seedlings in the turnover box are sprayed to rinse away the large pieces of mud and sand carried by the seedlings. The turnover box is then placed in the cleaning tank of an ultrasonic cleaning machine, so that the roots and the lower half of the stems of the seedlings are immersed in the cleaning liquid. The ultrasonic cleaning machine is started for fine cleaning to remove fine mud and sand attached to the roots of the seedlings, as well as debris such as rotten leaves. In this embodiment, in order to protect the root system, the cleaning liquid used in the cleaning tank is a mixture of seawater and potassium permanganate, wherein the seawater is taken from the sea area where the seedlings naturally grow. When configuring the cleaning liquid, the mass ratio of seawater to potassium permanganate is between 3000:1 and 8000:1. During ultrasonic cleaning, the temperature of the cleaning liquid is controlled between 20°C and 30°C. In this embodiment, ultrasonic cleaning can reduce the amount of debris carried by the roots of seedlings to less than 2%, with good cleaning effect. The main component of the cleaning liquid used is seawater suitable for seedling growth, which has little stimulation to the seedlings. In addition, by adding potassium permanganate, the roots of the seedlings can be disinfected and sterilized during cleaning, which can effectively prevent the root system of the seedlings from developing lesions and improve the survival rate of the seedlings.

[0035] In actual production, before step S2, the roots and stems of the seedlings need to be sorted out. First, the horizontal roots of the seedlings are trimmed to keep the length of the horizontal roots between 3-5 cm. Figure 2 , trim both sides of the seedling's transverse root 101 so that the retained length of one side of the transverse root 101 is less than 1 cm, and the retained length of the other side is between 3-4 cm. After the transverse root 101 is arranged, the longitudinal root 102 of the seedling 1 is wrapped around the treated transverse root 101 and fixed with some degradable bands, and then trim the seaweed leaves so that the total length of the leaves, stems and roots of the entire seaweed seedling is between 20-25 cm.

[0036] After the roots and stems of the seedlings are processed, step S2 is performed. In step S2, the seedlings are wrapped with sea mud using the following steps:

[0037] Step a: Take some dry sea mud powder and add it to sea water to stir it into thin mud, so that the viscosity of the thin mud is kept at 1×10 5 -3×10 5between cps;

[0038] Step b: Immerse the roots of the seedlings and at least one-fifth of the stem into the mud, let it stand for 3-5 seconds, and then take it out;

[0039] Step c: taking part of the dry sea mud powder and sprinkling it on the roots and stems covered with thin mud to form a sea mud crust on the roots and stems;

[0040] Step d: Repeat steps b to c multiple times to form transplants.

[0041] Among them, the dry sea mud powder used in step a is sea mud powder processed from deep sea mud. The dry sea mud powder has been matured and sterilized, and the fineness of the selected dry sea mud powder is above 200 meshes. The dry sea mud powder can form mud after adding water and stirring. The sea mud is rich in nutrients and contains a variety of mineral nutrients required for seaweed growth. It has high fineness and high viscosity. Through the above steps, sea mud shells are formed on the roots of the transplanted plants and at least one-fifth of the stems. On the one hand, the sea mud shells can protect the roots and stems of the seedlings. On the other hand, the sea mud shells can also provide the roots of the seedlings with nutrients for their growth. In this embodiment, the weight of the sea mud shells carried by each transplant is not less than 50 grams, which can provide sufficient nutrition for the seaweed seedlings in the early stage of transplantation, thereby effectively promoting the rapid growth of the seedling roots and improving the survival rate of the seedlings. After completing step S2, counterweights may be added to the sea mud shell on the transplanted plant. By adding counterweights, the seedlings can be effectively prevented from being affected by water disturbances. In application, the counterweights are stones embedded in the circumference of the sea mud shell, half of the stones are embedded in the sea mud shell, and half are located outside the sea mud shell. By embedding stones in the circumference of the sea mud shell, on the one hand, the overall weight of the sea mud shell is increased, which is conducive to the fixation of the transplanted plant. On the other hand, half of the stones are exposed outside the sea mud shell, which is equivalent to increasing the contact area between the sea mud shell and the surrounding mud and sand. Moreover, after the sea mud shell is buried by mud and sand, the stones exposed outside the sea mud shell can be embedded in the surrounding mud and sand, thereby fixing the transplanted plant.

[0042] When performing step S3, first, a transplant pit is dug at the designated transplant location. The depth of the transplant pit is 1-10 cm, the length is 15-20 cm, and the width is 3-5 cm. The selection can be made with reference to the size of the local water flow. After the transplant pit is dug, a layer of sea mud is laid in the transplant pit. After the transplanted plants are fixed on the sea mud layer, the transplant pit is buried.

[0043] Optional, see Figure 3Before placing the transplant 2 into the transplant pit 3, first determine the direction of the water flow at the transplant location. When the transplant 2 is placed into the pit, the direction of the end of the sea mud shell 201 of the transplant 2 away from the stem of the transplant 2 is consistent with the direction of the water flow, and the end of the sea mud shell 201 away from the stem of the transplant 2 is tilted downward, with an inclination angle between 10° and 15°. In this way, the sea mud shell 201 can act as an anchor in the mud and prevent the transplant 2 from being washed away by the water flow, thereby improving the survival rate.

[0044] The beneficial effects of the seaweed transplantation method provided by the present invention are as follows: compared with the existing technology, the seaweed transplantation method of the present invention uses sea mud to wrap the root system of the seedlings. First, the sea mud protects the root system of the seedlings and prevents the root system of the seedlings from being damaged. Second, the sea mud can also provide the nutrients required for the growth of the seedling roots. Third, the sea mud increases the weight of the seedling roots, making the seedlings less susceptible to drifting due to disturbances of the water flow, thereby greatly improving the transplantation survival rate of the seedlings. After actual planting verification, after using the method of the present invention to transplant seaweed, the survival rate of the seaweed seedlings increased from the original 20%-30% to more than 85%, greatly improving production efficiency.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A seaweed transplantation method, characterized in that: The following steps are involved: S1: Collect seedlings, dig them out with a shovel, remove the mud carried by the seedlings, and make sure the root system of the seedlings is clean and intact; S2: Wrap the roots and lower part of the stems of the collected seedlings with a layer of sea mud to form transplants; Wherein, the wrapping step includes: Step a: Take some dry sea mud powder and add it to sea water to stir it into thin mud, so that the viscosity of the thin mud is kept at 1×10 5 -3×10 5 between cps; Step b: Immerse the roots of the seedlings and at least one-fifth of the stem into the mud, let it stand for 3-5 seconds, and then take it out; Step c: taking part of the dry sea mud powder and sprinkling it on the roots and stems covered with thin mud to form a sea mud crust on the roots and stems; Step d: Repeat steps b to c multiple times to form a transplant; S3: digging a transplant pit at the designated transplant location, placing the transplanted plants in the transplant pit so that the sea mud covering the transplanted plants is completely inside the transplant pit, and then covering the transplant pit to complete the transplant operation; Before step S2, the transverse roots of the seedlings are trimmed to a total length of 3-5 cm, and the longitudinal roots of the seedlings are wrapped around the transverse roots and fixed with a degradable band; After completing step d, a counterweight block is added to the sea mud shell of the transplanted plant. The counterweight block is a stone embedded in the circumference of the sea mud shell, with half of the stone embedded in the sea mud shell and the other half located outside the sea mud shell.

2. The seaweed transplantation method according to claim 1, wherein: In step S1, when collecting seedlings, the shovel is inserted downward into the mud and sand from 4-5 cm away from one side of the seedling, with the tip of the shovel tilted toward the seedling, the angle between the tip of the shovel and the horizontal plane is between 70°-80°, and the insertion depth of the shovel tip is not less than 7 cm. The shovel is operated to rotate around the seedling once to dig out the seedling and the mud around the seedling.

3. The seaweed transplantation method according to claim 2, wherein: The dug seedlings are stacked in a turnover box with through holes on the bottom and side walls. The turnover box is placed in a cleaning tank of an ultrasonic cleaning machine to clean the seedlings.

4. The seaweed transplantation method according to claim 3, wherein: The cleaning liquid in the cleaning tank is a mixture of seawater and potassium permanganate, the mass ratio of the seawater to the potassium permanganate is 3000:1-8000:1, and the temperature of the cleaning liquid is between 20°C and 30°C.

5. The seaweed transplantation method according to claim 1, wherein: In step 3, before placing the transplanted plants into the transplanting pit, a layer of sea mud is laid at the bottom of the transplanting pit, and after the transplanted plants are fixed on the sea mud layer, the transplanting pit is buried.

6. The seaweed transplantation method according to claim 1, wherein: Before placing the transplanted plants in the transplanting pit, first determine the direction of the water flow at the transplanting site. When placing the transplanted plants in the pit, make sure that the direction of the end of the sea mud shell away from the stem of the transplanted plants is consistent with the direction of the water flow, and make the end of the sea mud shell away from the stem of the transplanted plants tilt downward, with an inclination angle between 10° and 15°.

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