Method and device suitable for rapid greening of stone slope in arid valley region

Abstract

The present application relates to the technical field of ecological restoration, in particular to a method and device for rapid greening of a stone slope in a dry valley region. The method comprises the following steps: collecting mat-shaped vegetation, straw and local herbaceous stems and leaves with a certain tensile strength, and shaping a net to form a mat-shaped vegetation blanket through a rapid greening device; and laying the mat-shaped vegetation blanket on the stone slope. The present application solves the problems of thin soil layer, poor soil fertility, poor organic matter accumulation ability, complex process and the like in slope restoration, thereby reducing the restoration cost and improving the greening efficiency.

Description

Technical Field

[0001] This invention relates to the field of ecological restoration technology, specifically to a method and apparatus for rapid vegetation restoration on rocky slopes in arid river valleys. Background Technology

[0002] The rocky slopes in the arid valley region of the middle reaches of the Lancang River are prone to geological disasters such as collapses and landslides due to their thin soil layer, poor soil fertility, and poor water retention. The vegetation in this area is mainly composed of shrubs and grasses, which are relatively low-growing, sparse, and have low coverage. However, the cushion-like vegetation in this area not only has advantages such as drought resistance, ease of preservation, ease of recovery, and minimal management, but also improves soil temperature, water retention, and nutrient conditions, making it particularly suitable for slope revegetation.

[0003] There are currently over 1,300 species of cushion plants, most of which possess a compact and dense canopy structure. Beneath the compact canopy of cushion plants, soil temperature, water retention, and nutrient conditions are often improved to varying degrees, thus exhibiting a conservation effect on neighboring plant species. Therefore, the microenvironment covered by cushion plants is like a "fertile island" in barren soil.

[0004] Currently, research on revegetation of rocky slopes mainly focuses on slope engineering technology, soil improvement, and plant selection. This involves using large machinery to solidify the slope, various soil conditioners to improve the soil matrix, and mixing multiple plant species. However, this approach is costly in terms of labor and machinery, materials, and processes, and its water and fertilizer retention effects are not significant, resulting in poor ecological sustainability. Therefore, there is a need to develop a rapid revegetation method suitable for rocky slopes in the arid valley region of the middle reaches of the Lancang River. This method should not only be simple and easy to implement but also significantly reduce the economic and maintenance costs of slope restoration, while also being environmentally friendly and ecologically sustainable. Summary of the Invention

[0005] In response to the problems of thin soil layer, poor soil fertility, poor organic matter accumulation capacity, and complex process in slope restoration, which lead to high restoration costs and low revegetation efficiency, this invention provides a method and device for rapid revegetation of vegetation on rocky slopes in arid river valleys. It does not require high technical skills, is inexpensive, and can improve poor soil fertility and achieve good revegetation results.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention discloses a method for rapid vegetation restoration on rocky slopes in arid river valleys. The method involves collecting cushion vegetation, straw, local herbaceous stems and leaves with a certain tensile strength, and shaping netting to form a cushion vegetation mat using a rapid restoration device. The cushion vegetation mat is then laid on the rocky slope.

[0008] Preferably, the preparation process of the mat-shaped vegetation blanket is as follows: a shaping net is laid on the rapid revegetation device, a mixture of straw, herbaceous stems and leaves and a coagulant is evenly laid on the shaping net, a layer of seed substrate of the potato family is sprinkled on the mixture, then mat-shaped plants and their root soil are laid, and finally the shaping net is laid again, and the bottom and top shaping nets are sewn together to form a mat-shaped vegetation blanket.

[0009] Preferably, the plant seed substrate is mainly a mixture of leguminous plant seeds, mud, water-retaining agent, and slow-release fertilizer.

[0010] Preferably, the paving method is as follows: paving is carried out from the top of the slope to the bottom of the slope, with the overlap width between the mat-shaped vegetation blankets being 5cm to 10cm. The next level of netting is laid on top of the previous level of netting, and the overlapping parts of the paving are fixed. After being fixed, it is nailed to the slope surface with anchors.

[0011] Correspondingly, a rapid vegetation restoration device for rocky slopes in arid river valleys includes a support plate and a base plate mounted on and sliding on the support plate. Parallel baffles are arranged along the length of the base plate, and a fixing plate is arranged between the two baffles. The two ends of the fixing plate pass through the baffles, allowing the baffles to move along the fixing plate. The fixing plate is located at one end near the baffle. A shaped mesh roll is arranged above the baffle in its width direction, with a telescopic shaft passing through its center. The two ends of the telescopic shaft are supported on the support plate by fixing seats.

[0012] Preferably, an adjustment plate parallel to the fixed plate is provided at the other end of the baffle, located between the two baffles. The baffle is provided with a strip hole for the adjustment plate to pass through, and multiple sets of strip holes are provided on the two baffles respectively.

[0013] Preferably, a first lead screw is provided through the two baffles, and the baffles and the first lead screw are fixed together by a first lead nut. The two ends of the first lead screw extending out of the baffles are fixed by bearing seats, and a first motor is provided at one end.

[0014] Preferably, a drive assembly for moving the lever assembly is provided on the outer side of the baffle between the shaping net roll and the fixing plate along its length direction. The drive assembly includes a second lead screw, the two ends of which are respectively fixed to the pad plate through bearing seats. A second motor is provided at one end of the second lead screw, and a telescopic member is provided at the bottom of the pad plate. The lever assembly is arranged between the two second lead screws so that the mixture of straw, herb stems and leaves and coagulant is evenly spread on the shaping net. The two ends of the lever assembly are respectively fixed to the second nut on the second lead screw.

[0015] Preferably, the lever assembly includes a fixed rod, on which a sleeve with a length less than the minimum distance between the two baffles is fitted. Multiple levers are arranged along the length of the bottom of the sleeve. Threaded cylinders are coaxially arranged at both ends of the sleeve. A threaded sleeve adapted to the threaded cylinder is fitted on the fixed rod corresponding to the threaded cylinder. An external thread adapted to the threaded sleeve is provided on the fixed rod within the movement range of the threaded sleeve. A cutting assembly for cutting the shaping mesh is arranged between the two second nuts. The cutting assembly is positioned between the lever assembly and the shaping mesh roll.

[0016] Preferably, the cutting assembly includes telescopic rods respectively fixed on the second lead screw, a connecting rod between the telescopic rods, a through hole through the connecting rod along its length, a fourth lead screw fixed in the through hole by a bearing, a fourth motor at one end of the fourth lead screw, a cutting slit communicating with the through hole at the top of the connecting rod, a fourth lead screw on the fourth lead screw, a cutter on the fourth lead screw, and the cutter extending out of the connecting rod through the cutting slit.

[0017] Preferably, a strip groove is formed at the center line along the length direction of the support plate, a third lead screw is rotatably arranged in the strip groove, a third lead screw is provided on the third lead screw, the third lead screw is fixed to the bottom surface of the base plate, one end of the third lead screw passes through the side wall of one end of the strip groove and is fixed to a third motor; grooves are provided on the support plate on both sides of the strip groove, and rollers are rotatably connected in the grooves through a rotating shaft, the top part of the rollers extends out of the grooves and contacts the bottom surface of the base plate.

[0018] The present invention has the following beneficial effects:

[0019] 1. This invention uses collected cushion plants, combined with locally discarded straw and local herbaceous stems and leaves with a certain tensile strength, and a shaping net to form a cushion vegetation mat. After the cushion vegetation mat is cured, it is directly laid on the rocky slope and irrigated directly using sprinkler or drip irrigation, without the need for special maintenance. This method is not only simple and easy to implement, but also greatly reduces the economic and maintenance costs of slope restoration, and has strong environmental performance and sustainability.

[0020] 2. This invention achieves the production of mat-shaped vegetation blankets by setting up a support plate and a base plate that moves relative to the support plate, and setting a shaping net roll, a lever assembly for laying the mixture and substrate, and a cutting assembly for cutting the shaping net on the base plate. The entire production process greatly saves manpower and material resources, and improves the production efficiency of mat-shaped vegetation blankets. Moreover, the device is simple to operate and easy to move. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of the present invention (top view).

[0022] Figure 2 for Figure 1 View from AA direction;

[0023] Figure 3 for Figure 2 A schematic diagram showing the base plate after it has moved relative to the support plate.

[0024] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0025] Figure 5 This is a schematic diagram of the telescopic shaft structure;

[0026] Figure 6 This is a top view of the support plate;

[0027] Figure 7 A schematic diagram of the drive component structure ( Figure 1 The diagram shown is a schematic of the drive assembly after the baffle is removed (excluding the cutting assembly) after sectional view AA.

[0028] Figure 8 This is a cross-sectional view of the cut component;

[0029] Figure 9 This is a schematic diagram of the lever assembly structure;

[0030] In the diagram: 1. Support plate; 2. Base plate; 3. Baffle; 4. Fixing plate; 5. Shaping mesh roll; 6. Fixing seat; 7. Adjusting plate; 8. Strip hole; 9. First lead screw; 10. First lead screw nut; 11. First motor; 12. Second lead screw; 13. Pad plate; 14. Second motor; 15. Telescopic component; 16. Second lead screw nut; 17. Fixing rod; 18. Sleeve; 19. Pulling rod; 20. Threaded cylinder; 21. Threaded sleeve; 22. Telescopic rod; 23. Connecting rod; 24. Through hole; 25. Fourth lead screw; 26. Fourth motor; 27. Cutting seam; 28. Fourth lead screw nut; 29. ​​Cutter; 30. Strip groove; 31. Third lead screw; 32. Third lead screw nut; 33. Third motor; 34. Groove; 35. Roller; 36. Shaft section; 37. Sleeve section; 38. Wedge block; 39. Hanging rod; 40. Telescopic rod; 41. Column. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art. The coagulants, water-retaining agents, and slow-release fertilizers mentioned in the embodiments are all existing technologies and are readily available for purchase.

[0033] This invention discloses a method for rapid vegetation revegetation of stony slopes in the arid valley region of the middle reaches of the Lancang River. The method includes the following steps: collection of cushion-shaped plant materials, fabrication of the cushion-shaped vegetation mat, temporary maintenance of the cushion-shaped vegetation mat, installation of the cushion-shaped vegetation mat, and post-installation maintenance of the mat. The vegetation mat is fabricated using a rapid revegetation device, which significantly saves manpower and improves production efficiency. The specific process of rapid vegetation revegetation is as follows:

[0034] 1. Collection of cushion-shaped plant materials:

[0035] During construction, mechanical or manual methods are used to collect the cushion vegetation in the topsoil area to be stripped, mainly cushion regeneration plants such as Selaginella tamariscina, Selaginella materia camara, and Gesneriaceae. The soil around the plant roots is preserved as much as possible. The collected plants can be temporarily stored in the topsoil storage area or temporarily preserved nearby.

[0036] 2. Fabrication of a mat-like vegetation blanket:

[0037] The collected mat plants are combined with local waste straw, local herbaceous stems and leaves with a certain tensile strength, and shaping netting to form a mat vegetation carpet through a rapid revegetation device.

[0038] The method for making the vegetation blanket is as follows:

[0039] 1) First, lay a layer of shaping netting on the ground. The size of the shaping netting is 5cm×5cm~10cm×10cm. The material is naturally biodegradable coarse cotton thread. The specifications of the shaping netting are 2m×2m~5m×5m. Then, lay a layer of locally discarded straw on top. The straw is shredded by machine into pieces of about 5cm and mixed with herbaceous stems and leaves with a certain tensile strength. After mixing, use a coagulant to stick it together. The thickness is about 1cm. Lay it flat on top of the shaping netting and align it left and right.

[0040] 2) Sprinkle a certain amount of the potato seed substrate on top. The seed substrate is a mixture of legume seeds, mud, water-retaining agent, and slow-release fertilizer. The ratio of legume seeds to mud, water-retaining agent, and slow-release fertilizer is 50-100 seeds: 2L mud: 5g water-retaining agent: 5g slow-release fertilizer.

[0041] 3) Lay down the mat-like plants and their root soil; finally, lay down the shaping net and sew the upper and lower layers of shaping net together to form a mat-like vegetation blanket.

[0042] This mat-shaped vegetation blanket is characterized by being environmentally friendly and biodegradable, recycling waste, readily available materials, low price, and durable. Because it uses the seeds of leguminous herbaceous plants, the roots of these seeds have a certain nitrogen-fixing effect after germination, which can retain fertilizer. The mat-shaped plants play a vital role in the accumulation of soil organic matter. Therefore, this mat-shaped vegetation blanket has the characteristics of sustainable use.

[0043] 3. Temporary maintenance of cushion-shaped vegetation mats:

[0044] Construction should be carried out during the rainy season from May to September. During construction, attention should be paid to soil retention of the mat-like vegetation blanket. Use strips of cloth or other barriers to prevent heavy rain from washing away the plant roots and causing soil loss. In other seasons, attention should be paid to water retention of the plants. Water every 10 to 15 days to keep the plant moisture content above 20 to 30%. Each watering should not be too wet. Moisturizing methods can be manual or sprinkler irrigation.

[0045] 4. Mat-like vegetation carpet installation:

[0046] After the slope construction is completed, the previously prepared mat vegetation blanket will be laid on the rocky slope. Before laying, the rocky slope must be mechanically compacted or necessary engineering measures must be taken to prevent the slope from collapsing. The slope of the rocky slope should not exceed 30°. If it exceeds 30°, the slope must be reinforced with engineering grid before the mat vegetation blanket is laid.

[0047] The paving method is as follows: paving is carried out from the top of the slope down the slope. The paving should be smooth, neat, and taut. The overlap width between the mat-like vegetation blankets is 5cm to 10cm. The next level of netting is laid on top of the previous level of netting. The overlapping parts of the paving are tied with herbaceous stems with tensile strength. After tying, it is nailed to the slope surface with anchors. The anchor spacing is 50cm to 100cm / anchor, with no less than one anchor per square meter, so that it is in full contact with the slope surface.

[0048] 5. Maintenance of the vegetation mat after installation:

[0049] After the mat vegetation is laid, the slope is irrigated using sprinkler or drip irrigation. The initial irrigation should be slow and evenly cover the irrigated area, but not excessive. The standard is: after watering, no water seeps into the slope; for the next 1-2 months, water every 3-5 days to maintain moisture; if there is natural rainfall, watering can be reduced; for the next 2-6 months, observe for water shortage; if a drought trend is observed, watering should begin. This maintenance method is simple and easy to implement, requires minimal management, does not require special fertilization, and is highly feasible.

[0050] Based on the above-mentioned revegetation method, the mesh size of the shaping net was selected as 5cm×5cm, and the net specifications were 2m×2m. The ratio of leguminous plant seeds to mud, water-retaining agent, and slow-release fertilizer was 50 seeds: 2L mud: 5g water-retaining agent: 5g slow-release fertilizer. The construction period was set for the rainy season in May, maintaining the plant moisture content above 20%, and the slope of the rocky slope not exceeding 30°. The width of the mat vegetation was 5cm, the anchoring spacing was 50cm / anchor, and there were 4 anchors per square meter. The remaining process was the same as the method disclosed above. After testing, the germination rate of leguminous plant seeds reached about 70%, and the coverage of the mat vegetation reached about 80%.

[0051] refer to Figures 1-9 The present invention also discloses a rapid vegetation restoration device for rocky slopes in arid river valleys. This device is mainly aimed at the production of the cushion-shaped vegetation mat in the above-mentioned method. If it is made manually, not only is the production efficiency low, but the production time is also long, which leads to uneven growth of plants on the cushion-shaped vegetation mat.

[0052] The rapid vegetation restoration device for rocky slopes disclosed in this invention includes a support plate 1 and a base plate 2, which is mounted on the support plate 1 and slides along its length. The base plate 2 is smaller than the support plate 1. Multiple columns 41 are provided at the bottom of the support plate. The bottom of each column can be optionally equipped with casters or wheels for easy movement of the entire device. The base plate 2 can slide on the support plate 1, thus achieving the final covering of the shaping net, and also allowing for the initial laying of the shaping net. Specifically, a strip groove 30 is formed at the center line along the length of the support plate 1. A third lead screw 31 is rotatably mounted within the strip groove 30, i.e., the third lead screw is fixed within the strip groove by bearings. A third nut 32 is mounted on the third lead screw 31 and fixed to the bottom surface of the base plate 2. The position of the third nut on the third lead screw and its fixed position to the base plate 2 can be set according to actual needs, as long as it ensures that the base plate can move to the desired position under the action of the third lead screw. Figure 3 In the shown state, as one embodiment, the third lead screw nut 32 is positioned near the front end of the base plate. One end of the third lead screw 31 passes through the side wall of one end of the strip groove 30 and is fixed to the third motor 33. The position where the third lead screw passes through the strip groove is fixed by a bearing. Grooves 34 are provided on the support plate 1 on both sides of the strip groove 30. The grooves are parallel to each other. Rollers 35 are rotatably connected to the grooves 34 through a rotating shaft. The top part of the rollers 35 extends out of the grooves 34 and contacts the bottom surface of the base plate 2. This allows the rollers to increase the support for the base plate when it moves under the action of the third lead screw, while also preventing the base plate from tilting and increasing its stability.

[0053] Furthermore, to prevent soil, straw, and other materials from falling off the base plate during the preparation of the mat vegetation blanket, parallel baffles 3 are installed along the length of the base plate 2. A fixing plate 4 is installed between two baffles 3, positioned near one end of the baffles 3 and perpendicular to them. One or two fixing plates can be installed. When only one is installed, it is positioned between the two baffles, near one end of the opening. At the other end of the opening, an adjusting plate 7, parallel to the fixing plate 4, is installed. The adjusting plate is not fixed to the base plate. The baffles 3 have slotted holes 8 through which the adjusting plate 7 passes. The bottom of the slotted holes 8 is open, allowing the bottom surface of the adjusting plate to contact the surface of the base plate. Multiple sets of slotted holes 8 are correspondingly installed on the two baffles 3, thereby adjusting the distance between the adjusting plate and the fixing plate, and thus adjusting the length of the mat vegetation blanket. When two fixing plates are installed, the fixing plate is positioned between the two baffles, near the openings at both ends. In this case, the distance between the two fixing plates is not adjustable, meaning the length of the mat vegetation blanket is not adjustable.

[0054] Furthermore, to adjust the width of the mat vegetation blanket, both ends of the fixing plate 4 pass through the baffle 3, i.e., the baffle has holes for the fixing plate to pass through, with the bottom of the holes open, allowing the baffle 3 to move towards or away from the fixing plate 4. Above the baffle 3, in its width direction, a shaping net roll 5 is provided. To better wrap the perimeter of the mat vegetation blanket, the width of the shaping net roll is greater than the distance between the two baffles, so that the sides of the mat vegetation blanket are also wrapped with the shaping net. A telescopic shaft passes through its center, and both ends of the telescopic shaft are supported on the support plate 1 by fixing seats 6. The fixing seats have upward-facing C-shaped notches, and the two ends of the telescopic shaft are placed in the C-shaped notches, which can be interference-fitted to fix the shaping net roll. At the same time, to better fix the shaping net to the baffle and prevent it from failing to wrap the sides of the mat vegetation blanket, hanging rods 39 are provided on the top surfaces of the baffle and the fixing plate, respectively. The top of the hanging rods 39 is pointed and rounded. When the shaping netting is laid on the base plate, it is hung on the hanging rod to support it.

[0055] Furthermore, to install shaping net rolls of different widths to create mat-like vegetation blankets of varying widths, the shaft passing through the shaping net roll is designed to be telescopic, i.e., a telescopic shaft. This allows for the adaptation to shaping net rolls of different widths without replacing the shaft. Specifically, the telescopic shaft includes a shaft section 36 and a sleeve section 37. The sleeve section 37 has internal threads. The shaft section 36 can be a stepped shaft, with its smaller diameter section having external threads that fit the sleeve section for a threaded connection. The larger diameter section has the same outer diameter as the sleeve section. When the shaft section and sleeve section are connected, the outer diameter of the shaft remains consistent to ensure the stability of the shaping net roll. Adjusting the length of the telescopic shaft simply requires rotating the shaft section or sleeve section to unscrew the threaded section from the sleeve section.

[0056] Meanwhile, a first lead screw 9 is threaded between the two baffles 3. The baffles 3 and the first lead screw 9 are fixed together by a first nut 10. The two ends of the first lead screw 9 extending out of the baffles 3 are fixed by bearing seats, and a first motor 11 is installed at one end. By starting the first motor, the first lead screw rotates, thereby driving the two baffles to move towards or away from each other. It should be noted that the first lead screw is parallel to the fixed plate, and the threads on the first lead screw have opposite directions to ensure that the baffles can move towards or away from each other. In one embodiment, the first lead screw is located at the end away from the fixed plate and outside the adjusting plate. If the baffle is too long, it may tilt or get stuck with the fixed plate and / or the adjusting plate when the first lead screw drives the baffle to move. In this case, only manual assistance is needed at the other end of the baffle to adjust the distance between the two baffles.

[0057] Furthermore, in order to increase the stability of the baffle, wedge-shaped blocks 38 with triangular cross-sections are respectively set on both sides of the baffle near its two ends. The bottom surface of the wedge-shaped blocks is flush with the bottom surface of the baffle, which can effectively increase the stability of the baffle.

[0058] Furthermore, a drive assembly for driving the lever assembly is provided on the outer side of the baffle 3 between the shaping net roll 5 and the fixing plate 4 along its length direction. The lever assembly is located between the two drive assemblies and is used to evenly spread the mixture of straw, herb stems and leaves and coagulant on the shaping net on the base plate.

[0059] Specifically: The drive assembly includes a second lead screw 12, with both ends of the second lead screw 12 fixed to a pad 13 via bearing seats. A second motor 14 is mounted on one end of the lead screw 12. Telescopic components 15 are mounted on the bottom of the pad 13, including but not limited to electric telescopic rods and cylinders. A lever assembly is positioned between the two second lead screws 12, ensuring the mixture of straw, herbaceous stems and leaves, and coagulant is evenly spread on the shaping net. Both ends of the lever assembly are fixed to the second nuts 16 on the second lead screws 12. It should be noted that the pad and the second lead screw are arranged parallel to each other along the length of the baffle. Simultaneously activating the second motor on the second lead screw drives the lever assembly to reciprocate along the direction of the shaping net, thereby evenly spreading the mixture of straw, herbaceous stems and leaves, and coagulant on the shaping net. The telescopic components control the height of the entire drive assembly, thereby controlling the distance between the lever assembly and the base plate to achieve the desired thickness of the mixture of straw, herbaceous stems and leaves, and coagulant.

[0060] Furthermore, two sets of second lead screws can be provided as described above, located on the outside of the baffle. Alternatively, only one set can be provided, with the other set replaced by a slide rod and a slider fitted onto the slide rod. When the second lead screw drives the lever assembly to move, the other end of the lever assembly also moves under the action of the slider. The specific settings can be determined based on the distance between the two baffles and the actual conditions during operation.

[0061] Furthermore, to increase the stability of the pad, sleeve-type telescopic rods 40 are installed at the bottom of the pad, on both sides of the telescopic component, to prevent the pad from tilting. The other end of the telescopic rod is fixed to the base plate.

[0062] Furthermore, the lever assembly includes a fixed rod 17, with both ends of the fixed rod 17 fixed to the second nut 16. Simultaneously, the second motor is activated, causing the second nut on the second lead screw to drive the fixed rod along the length of the baffle. A sleeve 18, with a length less than the minimum distance between the two baffles 3, is fitted onto the fixed rod 17. Multiple levers 19 are arranged along the length of the bottom of the sleeve 18. When the distance between the two baffles is not adjustable, the length of the sleeve matches the distance between the two baffles. When the distance between the two baffles is adjustable, the length of the sleeve is less than or equal to the minimum adjustable distance between the two baffles. By moving the position of the sleeve on the fixed rod, the mixture of straw, herbaceous stems and leaves, and coagulant on the shaping net is spread evenly in sections, ultimately achieving a mixture of a certain thickness on the shaping net. The telescopic component adjusts the distance between the lever and the base plate by controlling the lifting and lowering of the lever, thereby controlling the thickness of the spread mixture.

[0063] Furthermore, to enable the sleeve to be fixed at any position on the fixing rod, threaded cylinders 20 are coaxially provided at both ends of the sleeve 18. The threaded cylinders have external threads, and one end is fixed to the end face of the sleeve. A threaded sleeve 21, adapted to the threaded cylinder 20, is fitted onto the fixing rod 17 corresponding to the threaded cylinder 20. The threaded sleeve is stepped, with its large-diameter section having internal threads facing the threaded cylinder and adapted to it; that is, the threaded cylinder extends into the large-diameter section of the threaded sleeve and is fixed by the threads. The small-diameter section of the threaded sleeve is adapted to the fixing rod and connected to the fixing rod by threads. In other words, within the movement range of the threaded sleeve 21, the fixing rod 17 has external threads adapted to the threaded sleeve 21. This can be understood as follows: when the sleeve is in the middle position of the fixing rod, the fixing rod protruding from the sleeve has external threads adapted to the threaded sleeve. A cutting assembly for cutting the shaping net is provided between the two second thread nuts 16. The cutting assembly is located between the lever assembly and the shaping net roll 5. The cutting assembly is set parallel to the fixing rod, and the two ends of the cutting assembly are respectively fixed to the two second wire nuts.

[0064] Specifically, the cutting assembly includes telescopic rods 22 fixed to the second nut 16. These telescopic rods are spring-loaded and automatically reset after compression, preventing the shaping wire roll from directly impacting the connecting rod. A connecting rod 23 is provided between the telescopic rods 22, parallel to the fixed rod. A through hole 24 is provided along the length of the connecting rod 23, and a fourth lead screw 25 is fixed inside the through hole 24 via a bearing. A fourth motor 26 is provided at one end of the fourth lead screw 25. A cutting slit 27 communicating with the through hole 24 is provided at the top of the connecting rod 23. A fourth nut 28 is provided on the fourth lead screw 25, and a cutter 29 is provided on the fourth nut 28. The cutter 29 extends out of the connecting rod 23 through the cutting slit 27. When using the cutting component, the drive component needs to be started, and the lever component and the cutting component move away from the end of the shaping net roll. At this time, the third motor is started to drive the base plate to move, so that the shaping net covers the mat-shaped plants and their root soil. During this process, the shaping net covers the cutting component, and the cutter 29 is started to cut the shaping net.

[0065] When using the device of this invention, the shaping net can be manually pulled to the position of the fixed plate and hung on the hanging rod on the fixed plate. Both sides are also hung on the hanging rods on the baffles. Then, a mixture of straw, herbaceous stems and leaves, and a coagulant is poured onto the shaping net. During the pouring process, the mixture should be spread as evenly as possible on the shaping net. Then, the telescopic component is activated to adjust the distance between the lever and the base plate, and the sleeve is fixed in a suitable position using the threaded sleeve. Next, the second screw is activated, driving the lever to reciprocate along the baffles, spreading the mixture evenly on the shaping net. During this process, the position of the sleeve can be adjusted and fixed multiple times according to the distance between the two baffles.

[0066] Subsequently, a certain amount of seed substrate from this potato family is sprinkled onto the mixture. During this process, the distance between the lever and the base plate can be adjusted using the telescopic mechanism, and the lever's movement along the length of the baffle can be controlled to achieve uniform spreading of the potato family seed substrate. The spreading method is consistent with the method used for spreading the mixture described above. In actual operation, adjustments can be made as needed.

[0067] After the matting plants and their root soil are laid out, the third motor is activated, moving the base plate to position the shaping net at the initial end of the bottom shaping net, thus laying the shaping net on the surface. Then, the fourth motor is activated to cut the shaping net. Finally, the upper and lower layers of shaping net are sewn together to form the matting vegetation blanket. This device is simple to operate, greatly improves the production efficiency of matting vegetation blankets, and is easy to transport and move.

[0068] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0069] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A device for rapid vegetation restoration on rocky slopes in arid river valleys, characterized by: It includes a support plate (1) and a base plate (2) that is disposed on the support plate (1) and slides on the support plate (1). The base plate (2) has parallel baffles (3) disposed along its length direction. A fixing plate (4) is disposed between the two baffles (3). The two ends of the fixing plate (4) pass through the baffles (3) so that the baffles (3) can move along the fixing plate (4). The fixing plate (4) is disposed at one end close to the baffles (3). A shaping wire roll (5) is disposed above the baffles (3) in its width direction. A telescopic shaft passes through its center. The two ends of the telescopic shaft are supported on the support plate (1) by fixing seats (6). A drive assembly for driving the lever assembly is provided on the outer side of the baffle (3) between the shaping net roll (5) and the fixing plate (4) along its length direction. The drive assembly includes a second lead screw (12). The two ends of the second lead screw (12) are respectively fixed on the pad plate (13) through bearing seats. A second motor (14) is provided on one end of the second lead screw (12). The two ends of the lever assembly are respectively fixed to the second nut (16) on the second lead screw (12). A cutting assembly for cutting the shaping net is provided between the two second nuts (16). The cutting assembly includes telescopic rods (22) fixed on the second nut (16) respectively, a connecting rod (23) is provided between the telescopic rods (22), a through hole (24) is provided through the connecting rod (23) along its length direction, a fourth lead screw (25) is fixed in the through hole (24) by a bearing, a fourth motor (26) is provided at one end of the fourth lead screw (25), a cutting slit (27) communicating with the through hole (24) is provided at the top of the connecting rod (23), a fourth nut (28) is provided on the fourth lead screw (25), a cutter (29) is provided on the fourth nut (28), and the cutter (29) extends out of the connecting rod (23) through the cutting slit (27); The lever assembly includes a fixed rod (17), on which a sleeve (18) with a length less than the minimum distance between the two baffles (3) is fitted. Multiple levers (19) are provided at the bottom of the sleeve (18) along its length. Threaded cylinders (20) are coaxially provided at both ends of the sleeve (18). A threaded sleeve (21) adapted to the threaded cylinder (20) is fitted on the fixed rod (17) corresponding to the threaded cylinder (20). An external thread adapted to the threaded sleeve (21) is provided on the fixed rod (17) within the movement range of the threaded sleeve (21). The cutting assembly is provided between the lever assembly and the shaping wire roll (5).

2. The rapid vegetation restoration device for rocky slopes in arid river valleys according to claim 1, characterized in that: At the other end of the baffle (3), between the two baffles (3), there is an adjustment plate (7) that is parallel to the fixed plate (4). The baffle (3) has a strip hole (8) through which the adjustment plate (7) passes. There are multiple sets of strip holes (8) on the two baffles (3).

3. The rapid vegetation restoration device for rocky slopes in arid river valleys according to claim 1, characterized in that: A first lead screw (9) is provided between the two baffles (3). The baffles (3) and the first lead screw (9) are fixed by a first lead screw nut (10). The two ends of the first lead screw (9) extending out of the baffles (3) are fixed by bearing seats, and a first motor (11) is provided at one end.

4. The rapid vegetation restoration device for rocky slopes in arid river valleys according to claim 1, characterized in that: The bottom of the pad (13) is provided with telescopic components (15); the lever assembly is arranged between the two second screws (12) so that the mixture of straw, herb stems and leaves and coagulant is evenly spread on the shaping net roll (5).

5. The rapid vegetation restoration device for rocky slopes in arid river valleys according to claim 1, characterized in that: A strip groove (30) is provided at the center line of the length direction of the support plate (1). A third lead screw (31) is rotatably installed in the strip groove (30). A third lead screw nut (32) is provided on the third lead screw (31). The third lead screw nut (32) is fixed to the bottom surface of the base plate (2). One end of the third lead screw (31) passes through the side wall of one end of the strip groove (30) and is fixed to a third motor (33). A groove (34) is provided on the support plate (1) on both sides of the strip groove (30). A roller (35) is rotatably connected in the groove (34) through a rotating shaft. The top part of the roller (35) extends out of the groove (34) and contacts the bottom surface of the base plate (2).

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