Low-carbon barrier band for preventing flaked spartina alterniflora from amplifying outwards
By setting up a low-carbon barrier belt composed of rectangular bamboo plywood on the edge of the distribution area of the meshes, the problem of clonal growth and expansion of the meshes is solved, and the effective barrier effect is achieved, and it is environmentally friendly and economical.
Patent Information
- Application Number
- CN202421743113.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The prior art is difficult to effectively prevent the expansion of large scattered scattered rice grass from expanding outward through clonal growth, especially in local coastal zones where their shore function needs to be retained but prevent disorderly expansion.
A low-carbon barrier belt consisting of multiple rectangular bamboo plywood is used. The rectangular bamboo plywood is made of natural fresh bamboo sheets, with a width of 1.5-1.6m and a length of 1.8-2.0m. It is placed in a barrier groove 0.5-1.0m from the outermost edge of the plant of the Muhua Rice Grass. The joints of the two bamboo plywood overlap more than 10cm, and heavy stones or silt are placed in the center of each bamboo plywood to enhance stability.
It effectively prevents the expansion of the mutual flower rice grass from cloning and growing outward, has good barrier effect, and is environmentally friendly and economical due to the use of renewable low-carbon materials.
Smart Images
Figure CN222991282U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ecological protection, and in particular relates to a low-carbon isolation belt for preventing patches of Spartina alterniflora from cloning and amplifying outwards. Background Art
[0002] Spartina alterniflora Spartina alterniflora Loisel belongs to the Poaceae family and the genus Spartina. It is a perennial herb native to the east coast of North America and the Gulf of Mexico. It is particularly suitable for living in relatively flat intertidal zones close to estuaries. Because the plant has dense and thick straw, well-developed underground rhizomes, good silt-promoting effects, and strong salt and moisture tolerance, my country began to introduce it in 1979. After the successful trial in 1980, it was quickly promoted to be planted on coastal mudflats in Guangdong, Fujian, Zhejiang, Jiangsu and Shandong to slow down coastal erosion. However, due to its strong reproductive and expansion capabilities, it has rapidly expanded in my country's coastal areas and has become the most harmful alien invasive plant to my country's coastal mudflats.
[0003] In January 2021, the Ministry of Agriculture and Rural Affairs, the Ministry of Natural Resources, the Ministry of Ecology and Environment and other departments jointly issued the "Work Plan for Further Strengthening the Prevention and Control of Alien Invasive Species", proposing "combining the construction of relevant ecological protection and restoration projects, we will do a good job in the management of major forest and grass alien invasive species such as pine wood nematodes, gypsy moths, Spartina alterniflora, and micrantha". In December 2022, the State Forestry and Grassland Administration, the Ministry of Natural Resources, the Ministry of Ecology and Environment, the Ministry of Water Resources and the Ministry of Agriculture and Rural Affairs jointly issued the "Special Action Plan for the Prevention and Control of Spartina alterniflora (2022-2025)". At present, the main methods for the control of Spartina alterniflora include harvesting and covering, harvesting and flooding, plowing and burying, herbicide spraying and the combined application of two or three of these methods. Among them, the harvesting and flooding method has been widely used in the special action for the prevention and control of Spartina alterniflora. For some local coastal zones where existing technologies cannot be used to remove Spartina alterniflora or where its shore-fixing function still needs to be retained while preventing its disorderly expansion, using certain physical structures at the edge of its distribution area to effectively block it and prevent it from expanding outward through clonal growth is an effective control method. Summary of the invention
[0004] The utility model aims to provide a low-carbon barrier belt for preventing the outward expansion of a patch of Spartina alterniflora, so as to effectively prevent the Spartina alterniflora from continuously expanding outward through clonal growth.
[0005] The low-carbon barrier strip provided by the present utility model for preventing the outward expansion of Spartina alterniflora in patches is composed of multiple rectangular bamboo splints connected in sequence and arranged in a barrier trench located 0.5 - 1.0 m from the outermost plants of Spartina alterniflora; among them, the length of a single rectangular bamboo splint is 1.8 - 2.0 m, and the width is 1.5 - 1.6 m; each rectangular bamboo splint is woven from natural fresh bamboo strips (low-carbon biomass materials) with a length of 1.5 - 1.6 m and a width of 1.5 - 2.5 cm; the thickness of the bamboo strips is 2 - 3 mm; the width of the barrier trench is 1.7 - 1.8 m, and the sinking depth is greater than 8 cm; the length is determined according to the on-site needs and is usually 40 - 100 meters.
[0006] In the present utility model, the weaving structure of a single rectangular bamboo splint can be: using 5 relatively thick bamboo strips as warp threads, arranged at equal intervals, and using bamboo strips of a fixed length as weft threads, which are cross-woven with the 5 warp bamboo strips, and the weft bamboo strips are arranged closely in sequence; the length of the bamboo strip used as the weft is the width of the rectangular bamboo splint, and the length of the 5 bamboo strips used as the warp is the length of the rectangular bamboo splint, as shown in Figure 1 shown.
[0007] In the present utility model, the joints of two adjacent bamboo splints overlap by more than 10 cm to prevent the appearance of gaps.
[0008] In the present utility model, to prevent it from being washed away by the tide at the beginning, a stone weighing no less than 5 kg is placed in the center of each bamboo splint, or the bamboo splint is covered with silt nearby.
[0009] In the present utility model, marking lines made of thin ropes and anti-corrosion wooden stakes are set on both sides of the isolation belt for easy identification and management in the later stage.
[0010] Within one week after the bamboo splints are placed, patrol once every day after the ebb tide. If it is found that the stability of the bamboo splints is affected by too large waves, the number of ballast stones is appropriately increased. Generally, after several high and low tides, the sediment will gradually fill the slightly sunken barrier trench, thus burying the bamboo splints underneath and gradually increasing the covering thickness, so the bamboo splints will not be carried away by the waves.
[0011] After the bamboo splint barrier belt is stable, the patrol interval time can be gradually extended, gradually developing to patrol once a week and once a month. When it is found that new Spartina alterniflora plants grow out from the gaps in the isolation belt, they can be pulled out by hand with roots.
[0012] The principle of this barrier belt to prevent the outward expansion of Spartina alterniflora in patches is as follows: When the Spartina alterniflora plants expand outward and encounter the barrier belt, the cloned plants that could originally emerge and grow under natural conditions cannot pass through the bamboo splints. At the same time, since the barrier belt can block light, Spartina alterniflora cannot carry out photosynthesis and thus cannot obtain normal growth conditions. In addition, although the underground rhizomes of Spartina alterniflora are relatively long, the longest does not exceed 1.4 m. Therefore, the designed width of this barrier belt is greater than or equal to 1.5 m, so that the underground rhizomes of Spartina alterniflora cannot penetrate this barrier belt.
[0013] In this barrier belt, the width of the bamboo splints is set to 1.5 - 1.6 m, which takes into account both the penetration width of the Spartina alterniflora rhizomes underground and the preparation cost, so it cannot be set too wide.
[0014] This barrier belt uses bamboo slices as the barrier belt material. The raw material belongs to renewable resources, is low - carbon and abundant and easy to obtain. The bamboo splints have good toughness and are not easily crushed, and are not easily decayed underground, with a long service life. There are certain gaps between single bamboo slices of the bamboo splints, which have little impact on the wetland water - soil exchange and benthic organisms. The weaving process of the bamboo splints is simple, and the construction of the barrier belt is convenient.
[0015] The low - carbon barrier belt designed by the present utility model to prevent the outward expansion of Spartina alterniflora in patches has a good barrier effect. Description of the Drawings
[0016] Figure 1 It is the structure diagram of a single rectangular bamboo splint in the present utility model. Detailed Embodiments
[0017] The following further introduces the present utility model through specific examples.
[0018] There is a patch of Spartina alterniflora for shore protection on the shore - side of a certain coastal wetland. To prevent its continuous outward expansion, a 50 - meter - long low - carbon isolation belt needs to be set at its edge. The specific process is as follows.
[0019] (1) Weave the rectangular bamboo splints of the low - carbon isolation belt. Select the length of a single rectangular bamboo splint to be 1.8 - 2.0 m and the width to be 1.5 - 1.6 m; each rectangular bamboo splint is woven with natural fresh bamboo slices (low - carbon biomass materials) with a length of 1.5 - 1.6 m and a width of 1.5 - 2.5 cm; the thickness of the bamboo slices is 2 - 3 mm; the adjacent bamboo slices of the bamboo splint are as close as possible to each other without gaps ( Figure 1 )
[0020] The specific weaving structure of a single rectangular bamboo splint is as follows: Use 5 relatively thick bamboo slices as the warp threads, arranged at equal intervals, and use bamboo slices of a fixed length as the weft threads, which cross - weave with the 5 warp - thread bamboo slices, and the weft - thread bamboo slices are arranged closely in sequence; the length of the bamboo slices used as the weft threads is the width of the rectangular bamboo splint, and the length of the 5 bamboo slices used as the warp threads is the length of the rectangular bamboo splint.
[0021] (2) Establish partition grooves. On one side where the barrier belt needs to be built, at a place 0.5 - 1.0 m away from the outermost plants of the existing continuous Spartina alterniflora, use tools such as a small road roller to roll out a strip-shaped groove on the beach with a width of 1.7 - 1.8 m, a length greater than 51 m, and a sinking depth greater than 8 cm.
[0022] (3) Place the woven bamboo splints one by one in the above-mentioned rolled strip-shaped groove, and place a stone weighing no less than 5 kg in the center of each bamboo splint or cover the bamboo splints with nearby silt to prevent them from being carried away by the tide at the beginning. The joints of two adjacent bamboo splints need to overlap by more than 10 cm to prevent gaps from appearing.
[0023] (4) After the bamboo splint isolation belt is laid, use thin ropes and anti-corrosion wooden stakes to make marking lines on both sides of the isolation belt for easy identification and management in the later stage.
[0024] (5) Within one week after the bamboo splints are placed, conduct a patrol once every day after the ebb tide. If it is found that the stability of the bamboo splints is affected by too large waves, appropriately increase the number of pressing stones. Generally, after several high and low tides, the sediment will gradually fill the slightly sunken barrier belt, thus burying the bamboo splints underneath and gradually increasing the covering thickness, so the bamboo splints will not be carried away by the waves.
[0025] (6) After the bamboo splint barrier belt is stable, the patrol interval time can be gradually extended, gradually developing to once a week and once a month. When it is found that new Spartina alterniflora plants grow out from the gaps in the isolation belt, they can be pulled out by hand with roots.
[0026] Since the main material used for this barrier belt is renewable biomass material and no fossil fuel is consumed during use, it has the characteristic of low carbon. After the construction of this low-carbon barrier belt is completed, it has been used for 4 years. Although the bamboo splints buried under the silt have begun to carbonize and turn black, their structures are still intact. Except for a small number of newly germinated plants on it that need to be removed in time, no plants that grow clonally outside the barrier belt have been found, and the barrier effect is excellent.
Claims
1. A low-carbon barrier belt for preventing the outward expansion of Spartina alterniflora, characterized in that: It consists of a plurality of rectangular bamboo plywoods connected in sequence and laid in a barrier groove 0.5-1.0m away from the outermost plant position of Spartina alterniflora; wherein a single rectangular bamboo plywood is 1.8-2.0m long and 1.5-1.6m wide; each rectangular bamboo plywood is woven from natural fresh bamboo pieces with a length of 1.5-1.6m and a width of 1.5-2.5cm; the thickness of the bamboo pieces is 2-3mm; the width of the barrier groove is 1.7-1.8m, and the sinking depth is greater than 8cm; the length is determined according to on-site needs.
2. The low-carbon barrier belt for preventing the outward expansion of Spartina alterniflora according to claim 1, characterized in that: The weaving structure of a single rectangular bamboo plywood is as follows: 5 relatively thick bamboo pieces are used as warps, which are arranged at equal intervals, and bamboo pieces of a certain length are used as wefts, which are cross-woven with the 5 warp bamboo pieces, and the weft bamboo pieces are arranged closely in sequence; the length of the bamboo piece used as the weft is the width of the rectangular bamboo plywood, and the length of the 5 bamboo pieces used as the warp is the length of the rectangular bamboo plywood.
3. The low-carbon barrier belt for preventing the outward expansion of Spartina alterniflora according to claim 2, characterized in that: The joints of two adjacent bamboo plywood boards should overlap by at least 10 cm.
4. The low-carbon barrier belt for preventing the outward expansion of Spartina alterniflora according to claim 3, characterized in that: Place a stone weighing not less than 5kg in the center of each bamboo plywood, or cover the bamboo plywood with silt nearby.
5. The low-carbon barrier belt for preventing the outward expansion of Spartina alterniflora according to claim 4, characterized in that: Marking lines made of thin ropes and anti-corrosion wooden stakes are set on both sides of the isolation zone.