A method for preventing and controlling sand erosion using bamboo strips and its propagation.

Abstract

This invention provides a bamboo strip for sand control and a method for its insertion into sand-fixing structures. The bamboo strip itself has a sand-breaking tip at its bottom and a shallow transverse groove near the bottom. A depth marking area is also provided in the upper middle part of the bamboo strip. The sand-breaking tip at the bottom of the bamboo strip effectively reduces insertion resistance, allowing the bamboo strip to smoothly enter sand layers of varying densities. After the bamboo strip is inserted into the sandy area and compacted by the sand on both sides, sand particles enter the shallow transverse groove, creating mechanical interlocking. This improves the stability of the bamboo strip within the sandy area during insertion. Under harsh conditions such as wind vibration, sand flow, or localized erosion, the bamboo strip maintains a stable upright position, preventing loosening, tilting, or falling, thus extending the service life of the sand barrier and ensuring long-term windbreak and sand-fixing effects.

Description

Technical Field

[0001] This invention belongs to the field of bamboo strip sand control technology, specifically relating to a bamboo strip for sand prevention and control and its cutting propagation method for sand control. Background Technology

[0002] In some arid and semi-arid regions, problems such as wind erosion, desertification, sand dune movement, road sand accumulation, farmland damage, sand accumulation in photovoltaic power plant areas, and ecological degradation are prevalent. Under wind erosion, the ground surface becomes loose, and sand particles undergo jumping, creeping, and suspension, leading to sand dune movement, increased surface erosion, and exacerbated dust storms. To reduce wind speed, block sand particle movement, promote sand stability, and facilitate vegetation restoration, engineering sand fixation and vegetation sand fixation are commonly used sand control measures. Among existing engineering sand fixation measures, straw checkerboard sand barriers, straw sand barriers, reed sand barriers, branch sand barriers, plastic net sand barriers, and stone checkerboard sand barriers are widely used. Straw checkerboard sand barriers typically involve pressing materials such as wheat straw, rice straw, and reeds into the sand layer to form a checkerboard structure, thereby reducing near-surface wind speed and trapping flowing sand particles. Branch sand barriers and fence-like sand barriers impede wind and sand movement by setting up vertical or diagonal obstacles in the sand, thus achieving sand accumulation, sand fixation, and wind reduction effects.

[0003] While the aforementioned traditional sand barrier technologies have some sand control effect, they still have significant shortcomings. For example, herbaceous or straw-based materials have low strength and are prone to rotting, breaking, and being worn down by wind and sand; plastic mesh materials, although durable, suffer from environmental pollution, aging and breakage, and difficulties in later recycling; stone grid materials have high transportation costs and are not suitable for large-scale desert management; and manual sand barrier laying is inefficient, especially in high-temperature, strong-wind, soft sandy areas and large-scale management scenarios, where construction is difficult and costly.

[0004] Bamboo is a renewable, high-strength, and resilient natural material with relatively wide availability and eco-friendliness. After being processed into bamboo strips, bamboo possesses a certain degree of rigidity, elasticity, and wind erosion resistance, making it suitable for use as vertical or semi-vertical components in sand barriers. Compared to materials like wheat straw and rice straw, bamboo strips offer better bending resistance and a longer lifespan; compared to plastic materials, bamboo strips are biodegradable, eco-friendly, and less likely to cause long-term pollution.

[0005] However, during the bamboo cutting process, if the lower end of the bamboo strip is blunt, it is difficult to insert it into crusted or compacted sand; if the surface of the bamboo strip is too smooth, the interlocking force between the bamboo strip and the sand body is insufficient after insertion, making it easy to loosen under the action of wind; if the spacing between the bamboo strips is too small, it will form a near-solid wall, which may generate strong eddies and local erosion; if the spacing between the bamboo strips is too large, it is difficult to effectively reduce wind speed and intercept sand particles. Therefore, the use of bamboo strips for sand control requires a systematic design of factors such as bamboo strip structure, bamboo strip array, insertion depth, exposed height, cutting row spacing, and cutting angle.

[0006] Based on this, a method for preventing and controlling sand erosion using bamboo strips and its propagation by cuttings is proposed. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a bamboo strip for sand prevention and control and a method for sand control by cutting, in order to address the shortcomings of the prior art mentioned above.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: Firstly, a bamboo strip for sand prevention and control includes: a bamboo strip body; The bottom end of the bamboo strip body is provided with a sand-breaking tip, a shallow horizontal groove is provided near the bottom end of the bamboo strip body, and a depth marking area is also provided in the upper middle part of the bamboo strip body 1.

[0009] As a further explanation of the present invention, the bamboo strip body is made of bamboo material processed from light bamboo or moso bamboo; When used in shifting sand dunes, bamboo with a growth period of 4 to 5 years should be selected. The processed length of the bamboo strips should be 600 to 800 mm, the width should be 20 to 40 mm, and the thickness should be 4 to 8 mm. When used in semi-fixed sandy areas, bamboo with a growth period of 2 to 4 years should be selected. The processed length of the bamboo strips should be 500 to 650 mm, the width should be 15 to 25 mm, and the thickness should be 3 to 5 mm. When used in fixed sand dunes, bamboo with a growth period of 3 years should be selected. The processed length of the bamboo strips should be 350~500mm, the width should be 10~20mm, and the thickness should be 2~4mm.

[0010] As a further explanation of the present invention, the sand-breaking tip is a 45° single-sloping tip structure or a double-sloping tip structure, and the length of the sand-breaking tip is 10~30mm.

[0011] As a further explanation of the present invention, there are 2 to 4 transverse shallow grooves, and the depth of the transverse shallow grooves is set to 1 to 3 mm.

[0012] As a further explanation of the present invention, the depth marking area consists of marking lines set on the surface of the bamboo strip body at distances of 150mm, 200mm, 250mm and 300mm from the lower end.

[0013] Secondly, a method for sand control and prevention using bamboo cuttings includes the following steps: S1. Select bamboo material from moso bamboo or light bamboo, remove cracked, rotten and insect-infested parts, and process it into bamboo strips of corresponding specifications according to the usage scenarios of mobile sand dunes, semi-fixed sand dunes and fixed sand dunes. S2. Process the sand-breaking tip and the horizontal shallow groove at the bottom and middle-lower sections of the bamboo strip body, respectively; When used in shifting sand, the sand-breaking tip is a 45° single-sloping tip structure with a length of 10-15mm, the depth of the transverse shallow groove is 2-3mm, the groove spacing is 20-30mm, and the distance between the lowest transverse shallow groove and the bottom of the bamboo strip body is 150-250mm. When used in semi-fixed sandy areas, the sand-breaking tip has a double-sloped structure with a length of 20-30mm, a horizontal shallow groove depth of 1.5-2.5mm, a groove spacing of 25-35mm, and the distance between the lowest horizontal shallow groove and the bottom of the bamboo strip body is 120-200mm. When used in fixed sand areas, the sand-breaking tip has a double-sloped structure with a length of 20-30mm, a horizontal shallow groove depth of 1-2mm, a groove spacing of 10-20mm, and the distance between the lowest horizontal shallow groove and the bottom of the bamboo strip body is 80-150mm. Marking lines are set at 150mm, 200mm, 250mm and 300mm from the bottom of the bamboo strip to form depth marking areas, which are used to insert the bamboo strip to the corresponding depth according to the sandy soil type of the work area during the cutting construction. S3. Determine the prevailing wind direction in the work area, determine the placement direction of the bamboo strips based on the prevailing wind direction, then determine the type of sandy land in the work area, and determine the insertion depth and exposed height of the bamboo strip 1. S4. Determine the layout parameters of the bamboo strip array. Based on the sandy soil type, determine the center distance between adjacent bamboo strips. The net gap is equal to the center distance minus the width of the bamboo strip. For shifting sand dunes, the center-to-center distance of the bamboo strip array should be 30-60mm, the net gap should be 10-30mm, and the insertion angle should be 10-15° towards the windward side. For semi-fixed sandy areas, the center-to-center distance of the bamboo strip array should be 50-80mm, the net gap should be 30-50mm, and the insertion angle should be 5-10° towards the windward side. For fixed sandy areas, the center-to-center distance of the bamboo strip array should be 80-120mm, the net gap should be 50-80mm, and the insertion angle should be vertical or tilted 5° towards the prevailing wind direction. S5. Using mechanized bamboo cutting insertion equipment, bamboo strips are inserted at a uniform speed into the work area to form linear arrays, grid arrays, or diamond grid arrays according to preset requirements, thus completing the deployment of various types of sand control barriers.

[0014] As a further explanation of the present invention, in S3, after determining the prevailing wind direction of the work area, for a work area with a single prevailing wind direction, the extension line of the array composed of multiple bamboo strips forms an angle of 75~90° with the prevailing wind direction. For operational areas with two or more seasonal prevailing wind directions, multiple bamboo strips are arranged in a grid or diamond grid array, so that the two sets of bamboo strips are perpendicular to their respective prevailing wind directions or at a 45° angle to the combined wind direction.

[0015] As a further explanation of the present invention, in S3, for shifting sand, the insertion depth of the bamboo strip body is 220~300mm, and the exposed height is 220~350mm; For semi-fixed sandy areas, the insertion depth of the bamboo strip is 180~240mm, and the exposed height is 200~300mm; For fixed sandy areas, the insertion depth of the bamboo strip is 150~220mm, and the exposed height is 180~280mm.

[0016] As a further explanation of the present invention, in S5, the bamboo cutting mechanized propagation equipment moves at a constant speed along a predetermined route, with the speed controlled at 0.15~0.20m / s. During the propagation operation, the bamboo strips are continuously inserted into the sand at the following frequencies: 3~4 strips / second in mobile sand, 2~3 strips / second in semi-fixed sand, and 1.5~2.5 strips / second in fixed sand.

[0017] As a further explanation of the present invention, the linear array of sand control barriers is formed by continuously arranging single rows of bamboo strips to form multiple linear sand control barriers. When multiple barriers are parallel, the row spacing is 1.0~2.5m, and the row spacing on the windward side of the first barrier is 0.6 times the row spacing of the subsequent barriers. The grid-like sand barrier is formed by two sets of orthogonally arranged bamboo strips to form a grid, with the side length of the grid being 1.5~2.5m. The rhomboid grid array is used to form a rhomboid sand barrier on the windward slope of sand dunes. The bamboo strips are arranged at 45° and 135° with the prevailing wind direction, and the short diagonal of the rhomboid grid is 1.2~1.8m long.

[0018] Compared with the prior art, the present invention has the following advantages: The bamboo strip in this invention has a sand-breaking tip at the bottom and a shallow transverse groove in the middle and lower section. The sand-breaking tip at the bottom of the bamboo strip effectively reduces the insertion resistance during cutting, allowing the bamboo strip to smoothly enter sand layers of different densities. After the bamboo strip is inserted into the sandy area and compacted by the sand on both sides to form a sand compaction zone, the sand particles enter the shallow transverse groove to form a mechanical interlocking operation, which improves the stability of the bamboo strip in the sandy area during the cutting process. Compared with ordinary bamboo strips or branches with smooth surfaces or simple structures, the bamboo strip in this invention can maintain a stable upright state under harsh conditions such as wind vibration, sand flow, or local erosion. It is not easy to loosen, tilt, fall over, or be pulled out, thereby extending the service life of the sand barrier and ensuring long-term windbreak and sand fixation effects.

[0019] The bamboo strip propagation method for desertification control in this invention sets differentiated propagation parameters and operating procedures for different desert terrains and working conditions, such as mobile sand dunes, semi-fixed sand dunes, and fixed sand dunes. The mechanized operating equipment automatically matches the corresponding process parameters according to the pre-defined working conditions, moves continuously and at a uniform speed along the sand barrier line, inserts bamboo strips one by one, and completes auxiliary operations simultaneously. It fully considers the complexity of desert terrain and the differences in the mechanical properties of sand dunes, so that the same set of mechanized construction methods can flexibly adapt to various control scenarios from mobile sand dunes to fixed sand dunes, significantly improving construction efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall usage state of the present invention; Figure 2 This is a schematic diagram of a linear sand control barrier in an embodiment of the present invention; Figure 3 This is a schematic diagram of a grid-like sand control barrier in an embodiment of the present invention; Figure 4 This is a schematic diagram of a rhomboid grid-shaped sand control barrier in an embodiment of the present invention; Figure 5 This is a schematic diagram of the bamboo strip deployment angle within the work area under the seasonal prevailing wind direction in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures: 1-Bamboo strip body; 11-Sand-breaking tip; 12-Horizontal shallow groove; 13-Depth marking area; 2-Sand area; 21-Sand body compaction area. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain the invention and are not intended to limit the invention. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Example 1, as Figure 1 As shown, the present invention provides a technical solution: a bamboo strip for sand prevention and control, comprising: a bamboo strip body 1; The bottom end of the bamboo strip body 1 is provided with a sand-breaking tip 11, and a horizontal shallow groove 12 is provided near the bottom end of the bamboo strip body 1. The horizontal shallow groove 12 is evenly provided on both sides of the bamboo strip body 1. A depth marking area 13 is also provided in the upper middle part of the bamboo strip body 1.

[0024] Among them, the sand-breaking tip 11 set at the bottom of the bamboo strip body 1 can effectively reduce the insertion resistance during cutting, so that the bamboo strip body 1 can smoothly enter the sand layer with different densities. The horizontal shallow grooves 12 set on both sides of the bamboo strip body 1 allow sand particles to enter the horizontal shallow grooves 12 after the bamboo strip body 1 is inserted into the sandy area 2 and the sand is compacted on both sides to form the sand compaction zone 21. This creates a mechanical interlocking operation, which can improve the stability of the bamboo strip body 1 in the sandy area 2 during the cutting process.

[0025] In this embodiment, the bamboo strip body 1 is made of bamboo material processed from light bamboo or moso bamboo; When used in shifting sand dunes, bamboo with a growth period of 4 to 5 years should be selected. The processing length of the bamboo strip body 1 should be 600 to 800 mm, the width should be 20 to 40 mm, and the thickness should be 4 to 8 mm. When used in semi-fixed sandy areas, bamboo with a growth period of 2 to 4 years should be selected. The processing length of the bamboo strip body 1 should be 500 to 650 mm, the width should be 15 to 25 mm, and the thickness should be 3 to 5 mm. When used in fixed sandy areas, bamboo with a growth period of 3 years should be selected. The processing length of the bamboo strip body 1 should be 350~500mm, the width should be 10~20mm, and the thickness should be 2~4mm.

[0026] In this embodiment, the sand-breaking tip 11 is a 45° single-sloping tip structure or a double-sloping structure, the length of the sand-breaking tip 11 is 10~30mm, and there are 2~4 transverse shallow grooves 12, the depth of the transverse shallow grooves 12 is set to 1~3mm. Specifically, when used in shifting sand dunes, the sand-breaking tip 11 is a 45° single-sloping tip structure with a length of 10-15mm, the transverse shallow groove 12 is 2-3mm deep, the groove spacing is 20-30mm, and the distance between the lowest transverse shallow groove 12 and the bottom of the bamboo strip body 1 is 150-250mm. When used in semi-fixed sandy areas, the sand-breaking tip 11 has a double-sloped structure with a length of 20-30mm, the transverse shallow groove 12 has a depth of 1.5-2.5mm, the groove spacing is 25-35mm, and the distance between the lowest transverse shallow groove 12 and the bottom of the bamboo strip body 1 is 120-200mm. When used in fixed sand areas, the sand-breaking tip 11 has a double-sloped structure with a length of 20-30mm, the transverse shallow groove 12 has a depth of 1-2mm, the groove spacing is 10-20mm, and the distance between the lowest transverse shallow groove 12 and the bottom of the bamboo strip body 1 is 80-150mm.

[0027] In this embodiment, the depth marking area 13 consists of marking lines set on the surface of the bamboo strip body 1 at distances of 150mm, 200mm, 250mm and 300mm from the lower end.

[0028] Example 2: A method for sand control and prevention using bamboo cuttings, employing the bamboo cutting body 1 from Example 1, includes the following steps: S1. Select bamboo material from moso bamboo or light bamboo, remove cracks, rot and insect infestation, and process it into bamboo strip body 1 of corresponding specifications according to the usage scenarios of mobile sand, semi-fixed sand and fixed sand. Specifically, when used in shifting sand dunes, bamboo with a growth period of 4 to 5 years should be selected, and the processing length of the bamboo strip body 1 should be 600 to 800 mm, the width should be 20 to 40 mm, and the thickness should be 4 to 8 mm. When used in semi-fixed sandy areas, bamboo with a growth period of 2 to 4 years should be selected. The processing length of the bamboo strip body 1 should be 500 to 650 mm, the width should be 15 to 25 mm, and the thickness should be 3 to 5 mm. When used in fixed sandy areas, bamboo with a growth period of 3 years should be selected. The processing length of the bamboo strip body 1 should be 350~500mm, the width should be 10~20mm, and the thickness should be 2~4mm.

[0029] S2. Process a sand-breaking tip 11 and a transverse shallow groove 12 at the bottom end and middle and lower sections of the bamboo strip body 1, respectively; When used in shifting sand, the sand-breaking tip 11 is a 45° single-sloping tip structure with a length of 10-15mm, the transverse shallow groove 12 has a depth of 2-3mm, the groove spacing is 20-30mm, and the distance between the lowest transverse shallow groove 12 and the bottom of the bamboo strip body 1 is 150-250mm. When used in semi-fixed sandy areas, the sand-breaking tip 11 has a double-sloped structure with a length of 20-30mm, the transverse shallow groove 12 has a depth of 1.5-2.5mm, the groove spacing is 25-35mm, and the distance between the lowest transverse shallow groove 12 and the bottom of the bamboo strip body 1 is 120-200mm. When used in fixed sand areas, the sand-breaking tip 11 has a double-sloped structure with a length of 20-30mm, the transverse shallow groove 12 has a depth of 1-2mm, the groove spacing is 10-20mm, and the distance between the lowest transverse shallow groove 12 and the bottom of the bamboo strip body 1 is 80-150mm. Marking lines are set at 150mm, 200mm, 250mm and 300mm from the bottom on the surface of the bamboo strip body 1 to form depth marking areas 13, which are used to insert the bamboo strip body 1 into the corresponding depth according to the sandy soil type of the work area during the cutting construction. S3. Determine the prevailing wind direction in the work area, determine the placement direction of the bamboo strip body 1 based on the prevailing wind direction, then determine the sand type of the work area, and determine the insertion depth and exposed height of the bamboo strip body 1. After determining the prevailing wind direction of the work area, for a work area with a single prevailing wind direction, the extension line of the array composed of multiple bamboo strips 1 forms an angle of 75~90° with the prevailing wind direction and is perpendicular to it; For operational areas with two or more seasonal prevailing wind directions, specifically as follows: Figure 5 As shown, Figure 5 (a) is a schematic diagram of the bamboo strip deployment angle within a single prevailing wind direction operating area. Figure 5 (b) Schematic diagram of the bamboo strip deployment angles in the multi-seasonal wind direction operation area; Multiple bamboo strip bodies 1 are arranged in a grid-like or diamond-shaped array, such that the two sets of bamboo strip bodies 1 are perpendicular to their respective main wind direction or at a 45° angle to the combined wind direction.

[0030] For shifting sand dunes, the insertion depth of the bamboo strip body 1 is 220~300mm, and the exposed height is 220~350mm; For semi-fixed sandy areas, the insertion depth of the bamboo strip body 1 is 180~240mm, and the exposed height is 200~300mm; For fixed sandy areas, the insertion depth of the bamboo strip body 1 is 150~220mm, and the exposed height is 180~280mm.

[0031] S4. Determine the layout parameters of the bamboo strip body 1 array. Determine the center distance between adjacent bamboo strip bodies 1 for cutting according to the sandy soil type. The net gap is equal to the center distance minus the width of the bamboo strip. For shifting sand dunes, the center-to-center distance of the bamboo strip array 1 should be 30-60mm, the net gap should be 10-30mm, and the insertion angle should be 10-15° towards the windward side. For semi-fixed sandy areas, the center-to-center distance of the bamboo strip array 1 should be 50-80mm, the net gap should be 30-50mm, and the insertion angle should be 5-10° towards the windward side. For fixed sandy areas, the center-to-center distance of the bamboo strip array 1 should be 80~120mm, the net gap should be 50~80mm, and the insertion angle should be vertical or tilted 5° towards the prevailing wind direction. When the wind direction is variable or a grid pattern is used, vertical insertion is adopted regardless of the sand type; on the leeward slope of the sand dune, vertical insertion or tilting 5° upwards is adopted.

[0032] S5. Using a mechanized bamboo cutting insertion device, the bamboo strip body 1 is inserted into the working area at a uniform speed to form a linear array, grid array or diamond grid array according to the preset requirements, thus completing the deployment of various types of sand control barriers.

[0033] The S5 bamboo cutting mechanized propagation equipment moves at a constant speed along a predetermined route, with the speed controlled at 0.15~0.20m / s. During the propagation process, the bamboo strip body 1 is continuously inserted into the sand at the following frequencies: 3~4 strips / second in mobile sand, 2~3 strips / second in semi-fixed sand, and 1.5~2.5 strips / second in fixed sand.

[0034] During the bamboo strip insertion process, the depth marking area 13 on the surface of the bamboo strip 1 is used as a reference, and the marking line is basically flush with the ground after insertion.

[0035] For every 100 bamboo strips 1 worked consecutively, the insertion depth should be checked randomly. If the deviation exceeds ±50mm at 3 consecutive points, the operation should be suspended and the insertion depth limit should be recalibrated. After the bamboo strip 1 is inserted, its wide side should be perpendicular to the prevailing wind direction, and the tilt angle should be controlled according to the value specified in S3, with an allowable deviation of ±8°.

[0036] For each row of sand barriers, the inclination angle of at least 3 bamboo strips should be checked every 30 meters. The inspection method involves visual inspection combined with a simple angle gauge. Bamboo strips with an inclination angle deviation exceeding 15° should be pulled out and replaced 50-100mm to the side of the original position.

[0037] Different types of sandy soil have different specific operational requirements during the cutting propagation process: For shifting sand, after the bamboo strip body 1 is inserted, the sand in the sand area 2 on both sides of the bamboo strip body 1 within a range of 150-200mm is compacted to form a sand compaction zone 21. The compaction is based on the fact that the root of the bamboo strip body 1 is stable and there is no obvious shaking. For semi-fixed sandy land, after the bamboo strip body 1 is inserted, the sand within a range of 100-150mm on both sides of the sandy land area 2 of the bamboo strip body 1 is compacted. The upper part of the bamboo strip body 1 should not shake obviously after compaction. For fixed sandy areas, the surface is firmly consolidated, and directly inserting the bamboo strip body 1 can easily damage the tip 11 of the bamboo strip body 1. During the operation, a metal punch is first used to pre-break the sand surface, punching out a hole with a depth of 1 / 3 to 1 / 2 of the designed insertion depth. Then, the metal punch is withdrawn in place, and the bamboo strip body 1 is inserted into the position simultaneously until the target depth is reached. After the insertion is completed, the soil is not compacted; only the loose sand is backfilled to the base of the bamboo strip body 1.

[0038] In this embodiment, the linear array forming the linear sand control barrier is composed of multiple linear sand control barriers formed by continuously arranging single-row bamboo strips 1, such as... Figure 2 As shown, when multiple lanes run in parallel, the row spacing is 1.0~2.5m, and the row spacing on the windward side of the first lane is 0.6 times the row spacing of the subsequent lanes. The grid-like sand control barrier, composed of a grid array, utilizes two sets of orthogonally arranged bamboo strips 1 to form a grid, such as... Figure 3 As shown, the side length of the squares is 1.5~2.5m; The rhomboid grid array forming the sand control barrier is used on the windward slope of sand dunes, such as... Figure 4 As shown, the bamboo strips are arranged at 45° and 135° to the prevailing wind direction, and the short diagonal of the rhombus grid is 1.2~1.8m long.

[0039] In this embodiment, after the bamboo strip body 1 is inserted, it can maintain a stable upright state under harsh conditions such as wind vibration, sand flow, or local erosion. It is not easy to loosen, tilt, fall over, or be pulled out, thereby extending the service life of the sand barrier and ensuring long-term windbreak and sand fixation effect, which is highly efficient and practical.

[0040] It should be further noted that the accompanying drawings and embodiments of the present invention mainly describe the concept of the present invention. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of the present invention, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0041] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0042] The directional terms "inner" and "outer" refer to the inner and outer sides relative to the outline of each component itself. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," or "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0043] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0044] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A type of bamboo strip for sand prevention and control, characterized in that, include: Bamboo strip body (1); The bottom end of the bamboo strip body (1) is provided with a sand-breaking tip (11), a horizontal shallow groove (12) is provided near the bottom end of the bamboo strip body (1), and a depth marking area (13) is also provided in the upper middle part of the bamboo strip body (1).

2. The bamboo strip for sand control and desertification prevention according to claim 1, characterized in that, The bamboo strip body (1) is made from bamboo material of light bamboo or moso bamboo; When used in shifting sandy areas, bamboo with a growth period of 4 to 5 years is selected. The processing length of the bamboo strip body (1) is 600 to 800 mm, the width is 20 to 40 mm, and the thickness is 4 to 8 mm. When used in semi-fixed sandy areas, bamboo with a growth period of 2 to 4 years is selected. The processing length of the bamboo strip body (1) is 500 to 650 mm, the width is 15 to 25 mm, and the thickness is 3 to 5 mm. When used in fixed sandy areas, bamboo with a growth period of 3 years is selected. The processing length of the bamboo strip body (1) is 350~500mm, the width is 10~20mm, and the thickness is 2~4mm.

3. The bamboo strip for sand control and desertification prevention according to claim 2, characterized in that, The sand-breaking tip (11) is a 45° single-sloping tip structure or a double-sloping structure, and the length of the sand-breaking tip (11) is 10~30mm.

4. The bamboo strip for sand control and desertification prevention according to claim 3, characterized in that, There are 2 to 4 transverse shallow grooves (12), and the groove depth of the transverse shallow grooves (12) is set to 1 to 3 mm.

5. The bamboo strip for sand control and desertification prevention according to claim 4, characterized in that, The depth marking area (13) consists of marking lines set on the surface of the bamboo strip body (1) at distances of 150mm, 200mm, 250mm and 300mm from the lower end.

6. A method for sand control and afforestation using bamboo cuttings, comprising using bamboo cuttings for sand control and afforestation as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Select bamboo material from moso bamboo or light bamboo, remove cracked, rotten and insect-eaten parts, and process it into bamboo strips of corresponding specifications according to the usage scenarios of mobile sand, semi-fixed sand and fixed sand (1). S2. A sand-breaking tip (11) and a transverse shallow groove (12) are respectively processed at the bottom and middle and lower sections of the bamboo strip body (1). When used in shifting sand, the sand-breaking tip (11) is a 45° single-sloping tip structure with a length of 10~15mm, the transverse shallow groove (12) is 2~3mm deep, the groove spacing is 20~30mm, and the distance between the lowest transverse shallow groove (12) and the bottom of the bamboo strip body (1) is 150~250mm. When used in semi-fixed sandy areas, the sand-breaking tip (11) is a double-sloped structure with a length of 20~30mm, the horizontal shallow groove (12) is 1.5~2.5mm deep, the groove spacing is 25~35mm, and the distance between the lowest horizontal shallow groove (12) and the bottom of the bamboo strip body (1) is 120~200mm. When used in fixed sand, the sand-breaking tip (11) is a double-sloped structure with a length of 20~30mm, the horizontal shallow groove (12) is 1~2mm deep, the groove spacing is 10~20mm, and the distance between the lowest horizontal shallow groove (12) and the bottom of the bamboo strip body (1) is 80~150mm. Marking lines are set at 150mm, 200mm, 250mm and 300mm from the bottom of the bamboo strip body (1) to form depth marking areas (13), which are used to insert the bamboo strip body (1) into the corresponding depth according to the sand type of the work area during the cutting construction. S3. Determine the prevailing wind direction in the work area, determine the placement direction of the bamboo strip body (1) based on the prevailing wind direction, then determine the sand type of the work area, and determine the insertion depth and exposed height of the bamboo strip body (1). S4. Determine the layout parameters of the bamboo strip body (1) array. Determine the center distance of the adjacent bamboo strip bodies (1) to be inserted according to the sandy soil type. The net gap is equal to the center distance minus the width of the bamboo strip. For mobile sandy areas, the center distance of the bamboo strip array (1) is 30~60mm, the net gap is 10~30mm, and the insertion angle is 10~15° towards the windward side; For semi-fixed sandy land, the center distance of the bamboo strip array (1) is 50~80mm, the net gap is 30~50mm, and the insertion angle is 5~10° towards the windward side; For fixed sandy areas, the center distance of the bamboo strip array (1) is 80~120mm, the net gap is 50~80mm, and the insertion angle is vertical or tilted 5° towards the prevailing wind direction. S5. Using a bamboo strip mechanized insertion device, the bamboo strip body (1) is inserted into the working area at a uniform speed to form a linear array, grid array or diamond grid array according to the preset requirements, and to complete the deployment of various types of sand control barriers.

7. The method for sand control and prevention using bamboo cuttings according to claim 6, characterized in that, In S3, after determining the prevailing wind direction of the work area, for a work area with a single prevailing wind direction, the extension line of the array composed of multiple bamboo strip bodies (1) forms an angle of 75~90° with the prevailing wind direction. For operation areas with two or more seasonal prevailing wind directions, multiple bamboo strip bodies (1) are arranged in a grid-like array or a diamond-shaped array, so that the two sets of bamboo strip bodies (1) are perpendicular to their respective prevailing wind directions or at a 45° angle to the combined wind direction.

8. The method for sand control and prevention using bamboo cuttings according to claim 6, characterized in that, In S3, for mobile sandy land, the insertion depth of the bamboo strip body (1) is 220~300mm, and the exposed height is 220~350mm; For semi-fixed sandy areas, the insertion depth of the bamboo strip body (1) is 180~240mm, and the exposed height is 200~300mm; For fixed sandy areas, the insertion depth of the bamboo strip body (1) is 150~220mm, and the exposed height is 180~280mm.

9. The method for sand control and prevention using bamboo cuttings according to claim 6, characterized in that, The S5 bamboo cutting mechanized propagation equipment moves at a constant speed along the predetermined route, with the speed controlled at 0.15~0.20m / s. During the propagation operation, the bamboo strips (1) are continuously inserted into the sand at the following frequencies: 3~4 strips / second in mobile sand, 2~3 strips / second in semi-fixed sand, and 1.5~2.5 strips / second in fixed sand.

10. The method for sand control and prevention using bamboo cuttings according to claim 6, characterized in that, The linear array of sand control barriers is formed by continuously arranging single-row bamboo strips (1) to form multiple linear sand control barriers. When multiple barriers are parallel, the row spacing is 1.0~2.5m, and the row spacing on the windward side of the first barrier is 0.6 times the row spacing of the subsequent barriers. The grid-like sand barrier formed by the grid array is constructed by using two sets of orthogonally arranged bamboo strips (1) to form a grid, with the side length of the grid being 1.5~2.5m. The rhomboid grid array is used for the windward slope of sand dunes. The bamboo strips (1) are arranged at 45° and 135° with the main wind direction, and the short diagonal of the rhomboid grid is 1.2~1.8m long.

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