A method and device for rapid greening of slope plants in dry-hot valley regions

Abstract

The present application relates to the technical field of ecological restoration, in particular to a method and device for rapid greening of slope plants in dry-hot valley regions. The specific technical solution is as follows: a method for rapid greening of slope plants in dry-hot valley regions, after cleaning the slope, pull up the ecological net, dig a hole at the intersection of the grid and punch into the planting groove substrate by using the rapid greening device; the planting groove substrate is a semi-cone shape, and the substrate is pre-buried with a fixed rope, which is fixed with the ecological net. The present application can not be limited by the local harsh soil environment and climate environment, the planting groove substrate is not only breathable but also has water and fertilizer retention properties, the selected plants are local indigenous plants that can tolerate barrenness, this method can not only reduce the labor cost but also improve the rapid survival of slope plants and reduce the investment cost of slope greening, and the device can quickly obtain a specific shape of planting groove substrate, greatly improving the planting efficiency.

Description

Technical Field

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

[0002] Compared to other regions at the same latitude, the arid and hot river valleys are characterized by abundant sunshine and heat resources, low precipitation, high evaporation, and large diurnal temperature variations, resulting in a climate that is both dry and hot. This unique microclimate gives the region distinct plant and soil characteristics. The vegetation is dominated by shrubs and grasses with a short growing season, while the soil has low moisture content, lacks organic matter, has extremely low nutrient content, and is subject to severe erosion, making the ecosystem extremely fragile. Furthermore, with the development of construction projects, numerous slopes have been created in the arid river valleys, resulting in exposed surfaces, sparse vegetation cover, thin and unstable soil layers, and a high risk of landslides, collapses, and other geological disasters, impacting the safety of human settlements.

[0003] In recent years, slope ecological restoration technology has developed rapidly, mainly focusing on vegetation greening, soil matrix improvement, and slope engineering techniques. Currently, there are various patented technologies and research results, but research specifically on slope ecological restoration in arid and hot valley areas is limited. Existing research mainly focuses on the construction structure of the slope rock mass and vegetation configuration patterns, resulting in overly singular objectives, incomplete restoration effects, and high costs. Therefore, there is a need to invent a method suitable for slope revegetation in arid and hot valley areas that can comprehensively solve the problem and reduce costs. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a method and apparatus for rapid revegetation of slope vegetation in arid and hot river valleys. This method is not limited by harsh local soil and climate conditions. The planting trough substrate is not only breathable but also has water and fertilizer retention properties. The selected plants are native, tolerant, and fertile local plants. This method not only reduces labor costs but also improves the survival rate of slope plants and lowers the investment cost of slope revegetation. The apparatus can quickly obtain planting trough substrate of a specific shape, greatly improving planting efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention discloses a method for rapid revegetation of slope vegetation in arid and hot river valley areas. After the slope is cleared, an ecological net is laid on it. At the intersection of the net, a pit is dug using a rapid revegetation device and a planting trough substrate is poured in. The planting trough substrate is semi-conical, and a fixing rope is pre-embedded in the substrate to fix it to the ecological net.

[0007] Preferably, native dominant climbing plants are propagated or planted in the substrate of the planting trough, and / or, seeds of pioneer plants of arid valleys are mixed into the substrate of the planting trough.

[0008] Preferably, the seeds of tolerant, barren-poor plants near the slope are sprayed onto the slope. The seed treatment process is as follows: herbaceous seeds are soaked in water for 6-24 hours, and shrub seeds are soaked in gibberellin for 0.5-2 hours. The treated seeds are mixed together with the original soil and water-retaining agent, and then sprayed with water to maintain a humidity of 40-60%. After 20-40% of the seeds show signs of sprouting, they are sprayed.

[0009] Correspondingly, a rapid revegetation device for slope vegetation in arid and hot valley areas includes a base plate and wheels set at the bottom of the base plate. The base plate is provided with a rotatable base, and the base is provided with a number of planting troughs in the circumferential direction. A digging mechanism is provided on the base plate at a position corresponding to the base, and a planting trough opening and closing mechanism is provided between the digging mechanism and the base.

[0010] Preferably, the planting trough includes an arc-shaped triangular plate, with a cover plate hinged to the bottom of the triangular plate. Magnetic blocks are provided on both sides of the triangular plate and at corresponding positions on the cover plate and the sides of the triangular plate. The pointed end of the triangular plate faces downwards, and its convex surface is fixed to the base by a fixing rod. The opening and closing mechanism includes an electric telescopic rod, the output end of which is fixed to an electromagnet via a universal joint. The electric telescopic rod is correspondingly arranged with the cover plate, which is made of metal.

[0011] Preferably, the base is provided with a base at its bottom, the top surface of the base is provided with an annular groove, the bottom surface of the base is provided with a limiting block placed in the annular groove, the base is provided with a through hole through its axis, an internal gear ring is provided laterally in the through hole, a gear is meshed in the internal gear ring, the gear is fixed on a first motor, and the first motor is placed on the base.

[0012] Preferably, the base is square, with two planting grooves on each side. A support plate is provided on the bottom plate. A bidirectional screw slide is provided laterally on each side of the base and on the surface of the support plate. The fixing rod is provided on the slider, and the electric telescopic rod is provided on the slider of the bidirectional screw slide on the support plate. The electric telescopic rod corresponds one-to-one with the planting groove on the corresponding side of the base.

[0013] Preferably, the digging mechanism includes an insertion cylinder with a slanted bottom. The insertion cylinder is configured to correspond one-to-one with a planting groove on one side of the base. Both insertion cylinders have a fixing ring on their circumference. A connecting plate is provided on the side wall of the fixing ring. The connecting plates on the two insertion cylinders overlap and are fixed together. A telescopic component is provided on the base plate. The output end of the telescopic component is located at the bottom of the overlapped connecting plate. Multiple guide posts are provided on the base plate. The guide posts pass through the fixing rings. The insertion cylinder passes through the base plate. The direction of the slanted opening of the insertion cylinder is consistent with the opening direction of the triangular plate on the corresponding planting groove.

[0014] Preferably, the hole through which the insertion cylinder passes on the base plate is an oblong hole, and its direction is consistent with the side of the base; the top of the insertion cylinder is sealed, and a conveying mechanism is vertically arranged inside the insertion cylinder. The conveying mechanism includes a shaft arranged at the center of the insertion cylinder, one end of the shaft extending out of the top of the insertion cylinder and fixed with a second motor, and a spiral blade is arranged at the end of the shaft inside the insertion cylinder.

[0015] Preferably, the shaft has a thread on the side wall of the rod extending from the top of the insertion cylinder, and a nut is provided on the threaded section of the shaft. The nut passes through the top of the insertion cylinder and is fixed thereon. A vertical plate is provided on the top of the insertion cylinder, and a linear guide rail is provided on the vertical plate. The second motor is fixed on a slider on the linear guide rail, and the end of the shaft located inside the insertion cylinder is positioned away from its inclined opening.

[0016] The present invention has the following beneficial effects:

[0017] 1. This invention is not limited by the harsh local soil and climate environment. The substrate of the planting trough is not only breathable but also has fertilizer retention properties. The selected plants are local native plants that are tolerant of poor soil. This method can not only reduce labor costs but also improve the rapid survival of slope plants and reduce the investment cost of slope revegetation.

[0018] 2. The rapid revegetation device of this invention can quickly dig pits on slopes and fill planting troughs with substrate. The loading and unloading of the substrate can be largely automated, eliminating the need for manual operation. Specifically, the insertion cylinder is driven into the soil layer, and the soil inside the cylinder is removed by a conveying mechanism. Then, the substrate is released through an electric telescopic rod and the corresponding planting trough, allowing it to fall into the dug pit. The planting trough with substrate is then moved to the working position by rotating the base for the next operation. The entire slope revegetation work can be completed without a large number of workers. The equipment is simple to operate and is also suitable for vegetation revegetation on flat land. At the same time, the shape of the planting trough can be flexibly adjusted to adapt to different environments and occasions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention (top view).

[0020] Figure 2 for Figure 1 View from AA direction;

[0021] Figure 3 for Figure 1 Middle BB direction view;

[0022] Figure 4 This is a schematic diagram of the planting trough structure;

[0023] In the diagram: 1. Base plate; 2. Wheel; 3. Base; 4. Triangular plate; 5. Cover plate; 6. Magnetic block; 7. Fixing rod; 8. Electric telescopic rod; 9. Electromagnet; 10. Base; 11. Annular groove; 12. Limiting block; 13. Through hole; 14. Internal gear ring; 15. Gear; 16. First motor; 17. Baffle; 18. Support plate; 19. Two-way lead screw slide; 20. Insertion cylinder; 21. Fixing ring; 22. Connecting plate; 23. Telescopic component; 24. Guide column; 25. Shaft; 26. Second motor; 27. Spiral blade; 28. Nut; 29. ​​Vertical plate; 30. Linear guide rail; 31. Planting hole. Detailed Implementation

[0024] 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.

[0025] Unless otherwise specified, the technical means used in the implementation examples are conventional means well known to those skilled in the art.

[0026] 1. This invention discloses a method for rapid revegetation of slopes in arid and hot river valleys, comprising the steps of slope clearing, laying ecological netting, planting substrate in planting troughs, seed collection, seed treatment, seed-substrate mixing, and hydroseeding. The specific process is as follows:

[0027] (1) Slope cleaning: Use tools to remove large stones and gravel from the slope, preserve the original vegetation on the slope, transplant the vegetation at the bottom of the slope to the side for later use, level the slope, compact the soil, and make it gentle.

[0028] (2) Installing an ecological net: Install a diamond-shaped ecological grid on the slope, with the grid spaced 1.5 to 2 meters apart longitudinally. At the intersection of the grids, dig a pit using a rapid revegetation device and fill it with planting trough substrate. The planting trough substrate can be a semi-conical planting trough with a diameter of 30 to 50 centimeters. It is a seedling substrate made primarily of local soil, peat, fallen leaves, soil binder, and slow-release fertilizer. In the planting trough, native dominant climbing plants, such as Ficus lyrata, can be pre-planted or inserted. The stems of the climbing plants climb along the ecological net line. And / or, seeds of pioneer plants of arid valleys can be mixed into the planting trough substrate. Fixing ropes can be pre-buried in the planting trough substrate to fix it to the ecological net.

[0029] The substrate for the planting trough is prepared in the following weight ratio: local soil: peat: fallen leaves: soil binder: slow-release fertilizer = 4:2:1:0.5:0.5. After mixing the ingredients according to this ratio, the mixture is thoroughly mixed with water and then treated at high temperature to obtain a non-toxic and sterile substrate. Its main characteristics are breathability, lightweight, high porosity, and certain fertilizing properties. Plants can be planted directly in this substrate, allowing for transplanting without removing the plant from its pot, thus improving work efficiency and transplant success rate. The substrate is then placed into the planting trough of the rapid revegetation device. Plant seeds can be selectively mixed in before placing the substrate into the planting trough.

[0030] (3) Seed collection: Collect the above-ground seed parts of the barren-tolerant plants near the slope, including perennial herbs and shrubs, after the plant seeds mature and keep them for later use; the barren-tolerant plants mainly selected are pioneer plants of arid valleys such as two-headed hair and Chinese knotweed.

[0031] (4) Seed treatment: The collected seeds are treated. After removing impurities, select healthy and plump seeds. Herbaceous seeds are soaked in clean water for 6 to 24 hours. Shrub seeds are mainly treated with hormones such as gibberellin for soaking for about 0.5 to 2 hours.

[0032] (5) Seed substrate mixing treatment: Mix the treated seeds in a ratio of 5:1 for herbaceous seeds to shrub seeds. Mix the seeds with the original soil and water-retaining agent, stir thoroughly, and spray with water to moisten them to a humidity of about 40-60%.

[0033] Specifically: Place the mixed seed substrate near the slope, lay 1-3 layers of non-woven fabric on the ground, place the seed substrate on the non-woven fabric, spread it flat, spray with carbendazim solution, cover the seed substrate with non-woven fabric again, pile dry grass or river sand on top for insulation, spray with carbendazim solution again for disinfection, and then cover with a thin film to protect from rain.

[0034] (6) Spraying: When about 20-40% of the seeds have sprouted white, the film and non-woven fabric can be removed and placed into the sprayer. The sprayer can be used directly to align the diamond grid and spray the slope evenly. The effect of rapid greening can be achieved after one month.

[0035] Based on the aforementioned revegetation method, planting trough substrate was injected into the ecological netting grid at 1.5-meter intervals, with the grid intersections marked by planting trough substrate. The planting trough substrate was a semi-conical shape with a diameter of 30 cm, its sloping side facing upwards on the slope. During seed treatment, herbaceous seeds were soaked in water for 8 hours, while shrub seeds were treated with hormones such as gibberellin for approximately 0.5 hours. During the seed-substrate mixing process, the humidity was maintained at approximately 60%, and the mixture was covered with two layers of non-woven fabric. Sowing was carried out when approximately 20% of the seeds showed signs of sprouting; the remaining process was the same as the previously disclosed method. After one month of experimentation, the plant germination rate reached over 75%, and the slope coverage reached approximately 50%.

[0036] 2.Reference Figures 1-4 The present invention also discloses a rapid revegetation device for slope vegetation in arid and hot valley areas, which can quickly inject planting substrate into the slope without manual injection.

[0037] Specifically, the rapid revegetation device includes a base plate 1 and wheels 2 mounted on the bottom of the base plate 1. A handle can be installed at one end of the base plate as needed. The device disclosed in this invention can be used manually by pushing it, or it can be connected to a power vehicle to drive the planting substrate into the planting trough on the slope by pulling or pushing it. The specific configuration can be customized according to the flatness and slope of the slope.

[0038] A rotatable base 3 is mounted on the base plate 1. Several planting troughs are arranged circumferentially on the base 3. A digging mechanism is located on the base plate 1 at a position corresponding to the base 3. A planting trough opening and closing mechanism is provided between the digging mechanism and the base 3. By rotating the base 3, the planting troughs on the side of the base sequentially align with the opening and closing mechanism. The opening and closing mechanism releases the planting substrate from the planting troughs, allowing it to fall into the pits dug by the digging mechanism. Therefore, planting holes 31 are provided on the base plate between the opening and closing mechanism and the planting troughs. During the movement of the base plate, after the digging mechanism has dug the pits, the base plate is driven until the planting holes align with the pits, and then the opening and closing mechanism is activated to open the planting troughs, allowing the substrate to fall into the pits through the planting holes.

[0039] Furthermore, the planting trough includes an arc-shaped triangular plate 4, with a cover plate 5 hinged to the bottom of the triangular plate 4; therefore, the substrate in the planting trough is also semi-conical. (Reference) Figure 4 As shown, the triangular plate has ear plates at both ends of its base, and the cover plate has pivots at both ends of its base, which are rotatably connected to the triangular plate through the ear plates. The cover plate is triangular, which can close the side openings of the triangular plate, leaving only the top opening for filling with substrate.

[0040] To fix the triangular plate to the cover plate, magnetic blocks 6 are provided on both sides of the triangular plate 4 and on the cover plate 5 at the corresponding positions on both sides of the triangular plate 4, so that the triangular plate and the cover plate are fixed by magnetic attraction. When the planting trough is placed on the base, the tip of the triangular plate 4 faces down, and the convex surface (back side) is fixed to the base 3 by the fixing rod 7. Multiple fixing rods can be set according to the size of the triangular plate to increase the stability of the planting trough.

[0041] Furthermore, the opening and closing mechanism includes an electric telescopic rod 8. An electromagnet 9 is fixed to the output end of the electric telescopic rod 8 via a universal joint. The electric telescopic rod 8 is correspondingly positioned with the cover plate 5, which is made of metal and can be attracted and fixed by the electromagnet. When the electromagnet is energized, the electric telescopic rod 8 starts, causing it to move closer to the cover plate until the electromagnet is fixed to the cover plate. Then, the electric telescopic rod 8 moves the electromagnet away from the cover plate, causing the cover plate and the triangular plate to rotate via a pivot, separating them and allowing the planting trough substrate to fall. The universal joint design allows the electromagnet to rotate at different angles, providing greater adaptability.

[0042] Furthermore, to enable the base to rotate, a base 10 is provided at the bottom of the base 3. An annular groove 11 is provided on the top surface of the base 10, and a limiting block 12 is provided on the bottom surface of the base 3, which is placed within the annular groove 11. The limiting block can be annular or can be fitted with ball bearings, rotating within the annular groove to increase the stability of the base during rotation. A through hole 13 is provided through the axis of the base 3, and an internal gear ring 14 is transversely arranged within the through hole 13. A gear 15 meshes within the internal gear ring 14, and the gear 15 is fixed to a first motor 16, which is placed on the base 10. By controlling the first motor to rotate the gear, the base is driven to rotate via the internal gear ring.

[0043] Furthermore, a baffle 17 is provided inside the through hole 13, above the internal gear ring 14, and the distance between the baffle 17 and the internal gear ring 14 is less than the thickness of the internal gear ring 14. The baffle effectively prevents the internal gear ring from disengaging from the gear. Of course, the through hole can also be designed as a downward-facing groove, which can achieve the same effect.

[0044] Furthermore, to increase planting efficiency and control the spacing between planting troughs on the same side, the base 3 is preferably square to ensure that planting troughs facing the same direction have the same orientation. Two planting troughs are provided on each side. A support plate 18 is vertically mounted on the base plate 1. A bidirectional screw slide 19 is horizontally mounted on each side of the base 3 and on the surface of the support plate 18. This bidirectional screw slide has two sliders, which are existing components. A fixing rod 7 is mounted on the slider, and an electric telescopic rod 8 is mounted on the slider of the bidirectional screw slide 19 on the support plate 18. The electric telescopic rod 8 corresponds one-to-one with the planting trough on the corresponding side of the base 3. By simply activating the bidirectional screw slide, the two planting troughs and the two electric telescopic rods 8 on the same slide can be controlled to move towards or away from each other, thereby adjusting the distance between the two planting troughs and thus the planting distance.

[0045] Furthermore, the digging mechanism includes an insertion cylinder 20 with a slanted bottom. The insertion cylinder 20 is positioned one-to-one with a planting groove on one side of the base 3, ensuring that after digging, the planting hole aligns with the dug pit and the planting groove above the planting hole aligns with the pit. The inner diameter of the insertion cylinder is larger than the inner diameter of the triangular plate. Two fixing rings 21 are fixedly installed around the circumference of each insertion cylinder 20. A connecting plate 22 is installed on the side wall of the fixing ring 21. The connecting plates 22 on the two insertion cylinders 20 overlap and are fixed, for example, by bolts. A telescopic component 23, such as an electric telescopic rod or cylinder, is installed on the base plate 1. The output end of the telescopic component 23 is located at the bottom of the overlapped connecting plate 22, driving the two insertion cylinders to move up and down simultaneously. Multiple guide posts 24 are installed on the base plate 1, passing through the fixing rings 21 to ensure the stability of the insertion cylinders. The insertion tube 20 is installed through the bottom plate 1. The direction of the oblique opening of the insertion tube 20 is consistent with the opening of the triangular plate 4 on the corresponding planting trough, so that the shape of the planting trough and the pit dug by the insertion tube fits on the slope. At the same time, due to the slope inclination, one side of the substrate cover plate of the planting trough faces the direction of the slope, which can increase the stability of the plant.

[0046] Furthermore, the hole through which the insertion cylinder 20 passes on the base plate 1 is a waist-shaped hole, allowing for adjustment of the position between the two insertion cylinders. The direction of the waist-shaped hole is consistent with the side of the base 3; the top of the insertion cylinder 20 is sealed, and a vertically installed conveying mechanism is installed inside the insertion cylinder 20 to excavate the soil layer that enters the insertion cylinder. During the process of the entire device moving to the next excavation position, the soil layer inside is discharged by reversing the activation of the conveying mechanism. Specifically: the conveying mechanism includes a shaft 25 set at the axis of the insertion cylinder 20, one end of the shaft 25 extending out of the top of the insertion cylinder 20 and fixed with a second motor 26, and a spiral blade 27 installed at the end of the shaft 25 inside the insertion cylinder 20.

[0047] Furthermore, to prevent the insertion cylinder from impacting the spiral blades during insertion into the soil, the conveying mechanism is designed to be height-adjustable. Specifically, the shaft 25 has threads on its side wall extending from the top of the insertion cylinder 20, and a nut 28 is fitted onto the threaded section of the shaft 25. The nut 28 passes through the top of the insertion cylinder 20 and is fixed therein. A vertical plate 29 is vertically mounted on the top of the insertion cylinder 20, and a linear guide rail 30 is vertically mounted on the plate 29. The second motor 26 is fixed to a slider on the linear guide rail 30. One end of the shaft 25 inside the insertion cylinder 20 is positioned away from its inclined opening. By starting the second motor, the shaft rotates. Under the action of the threaded section of the shaft and the nut, the shaft moves up and down along the linear guide rail during rotation, thereby clearing the soil inside the insertion cylinder and ultimately excavating the pit. Two linear guide rails can be provided, with their sliders fixed on both sides of the second motor to increase the stability of the second motor's vertical movement.

[0048] Furthermore, a substrate storage tank (not shown in the figure) can be placed on the base plate or pedestal. Two discharge pipes are installed at the bottom of the tank, with one end of each pipe fixed to the bottom of the tank via bearings. This allows for flexible adjustment of the discharge pipe outlet direction, aligning the two discharge pipes with two planting troughs on one side of the pedestal. When a planting trough that has released substrate rotates through the pedestal to align with a discharge pipe, substrate is replenished into the planting trough, maximizing the automation of the loading and unloading process.

[0049] Taking manually pushing the entire device as an example, refer to Figure 1 As shown, adjust the spacing between the two insertion tubes, the two electric telescopic rods corresponding to the insertion tubes, and the two planting troughs corresponding to the electric telescopic rods, as well as the corresponding conditions. Replenish the substrate in the storage tank, and proceed as shown. Figure 1 In the indicated direction, push the base plate from the bottom of the slope towards the top. The longitudinal spacing of the planting troughs can be controlled by setting graduation lines on the side of the base plate. Activate the telescopic mechanism to drive the insertion cylinder downwards. After insertion, control the second motor to move downwards, conveying the soil from the insertion cylinder to the spiral blades. Activate the telescopic mechanism again to reset the insertion cylinder; push the base plate forward. During this process, activate the second motor to reverse, resetting the spiral blades and emptying the soil. Move until the planting hole aligns with the pit, activate the electric telescopic rod and electromagnet to fix the electromagnet to the cover plate. Activate the electric telescopic rod again; the cover plate rotates relative to the triangular plate, causing the substrate to fall into the pit. Push the base plate forward again, repeating the above operations.

[0050] After the substrate in the planting trough falls into the pit, the first motor is activated, causing the base to rotate. The planting trough, now containing the substrate, moves to align with the electric telescopic rod, allowing for the next placement of substrate. Throughout the operation, a worker must accompany the worker on one side of the base plate to insert cuttings into the substrate in the planting trough, bury the securing ropes, and observe the substrate's entry into the planting trough from the storage tank, performing necessary adjustments as needed. If seeds are directly mixed into the substrate, only the substrate filling status needs to be monitored. Compared to conventional manual planting methods, the device disclosed in this invention significantly improves planting efficiency, enabling rapid revegetation of slopes.

[0051] To enhance the coagulation effect of the substrate, the planting troughs on one side of the base are grouped together. After the substrate of the first group of planting troughs falls into the pit, the empty planting troughs are rotated to the side and substrate is added to them. This increases the coagulation time of the coagulant on the soil and prevents the soil from being loose, thus failing to achieve the effect of shaping the substrate in the planting troughs.

[0052] 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.

[0053] 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 method for rapid revegetation of slopes in arid and hot river valleys, characterized by: After cleaning the slope, an ecological net is installed. At the intersection of the nets, a rapid revegetation device is used to dig pits and fill them with planting trough substrate. The planting trough substrate is semi-conical, with pre-embedded fixing ropes to secure it to the ecological net. The planting trough substrate is mainly composed of local soil, peat, fallen leaves, soil binder, and slow-release fertilizer. The weight ratio of the planting trough substrate is local soil: peat: fallen leaves: soil binder: slow-release fertilizer = 4:2:1:0.5:0.

5. After mixing the raw materials according to the ratio, they are mixed with water and then treated at high temperature to obtain a non-toxic and sterile planting trough substrate. The sloping side of the planting trough substrate faces upwards on the slope. The rapid revegetation device can quickly dig pits on slopes and fill planting troughs with substrate. Specifically, the insertion tube is driven into the soil layer, and the soil inside the insertion tube is removed by the conveying mechanism. Then, the substrate is released by the electric telescopic rod and the corresponding planting trough, allowing it to fall into the dug pit. Finally, the planting trough with substrate is moved to the working position by rotating the base for the next operation. The rapid revegetation device used includes a base plate (1) and wheels (2) set at the bottom of the base plate (1). The device is characterized in that: a rotatable base (3) is provided on the base plate (1), and a plurality of planting troughs are provided on the circumference of the base (3). A digging mechanism is provided on the base plate (1) at a position corresponding to the base (3), and a planting trough opening and closing mechanism is provided between the digging mechanism and the base (3). The planting trough includes an arc-shaped triangular plate (4), with a cover plate (5) hinged to the bottom of the triangular plate (4). Magnetic blocks (6) are provided on both sides of the triangular plate (4) and at corresponding positions on the cover plate (5) and the triangular plate (4). The tip of the triangular plate (4) faces downward, and its convex surface is fixed to the base (3) by a fixing rod (7). The opening and closing mechanism includes an electric telescopic rod (8), with an electromagnet (9) fixed to the output end of the electric telescopic rod (8) via a universal joint. The electric telescopic rod (8) is correspondingly arranged with the cover plate (5), which is made of metal. The digging mechanism includes an insertion cylinder (20), the bottom of which is slanted. The insertion cylinder (20) is set one-to-one with the planting groove on one side of the base (3). The two insertion cylinders (20) are provided with a fixing ring (21) in the circumferential direction. The side wall of the fixing ring (21) is provided with a connecting plate (22). The connecting plates (22) on the two insertion cylinders (20) are overlapped and fixed. The bottom plate (1) is provided with a telescopic component (23). The output end of the telescopic component (23) is set at the bottom of the overlapped connecting plate (22). The bottom plate (1) is provided with multiple guide posts (24). The guide posts (24) pass through the fixing ring (21). The insertion cylinder (20) passes through the bottom plate (1). The direction of the slanted opening of the insertion cylinder (20) is consistent with the opening direction of the triangular plate (4) on the corresponding planting groove. The hole through which the insertion cylinder (20) passes on the base plate (1) is a waist-shaped hole, and its direction is consistent with the side of the base (3); the top of the insertion cylinder (20) is sealed, and a conveying mechanism is vertically arranged inside the insertion cylinder (20). The conveying mechanism includes a shaft (25) arranged at the axis of the insertion cylinder (20). One end of the shaft (25) extends out of the top of the insertion cylinder (20) and is fixed with a second motor (26). The end of the shaft (25) located inside the insertion cylinder (20) is provided with a spiral blade (27). The shaft (25) has a thread on the side wall of the rod portion extending from the top of the insertion cylinder (20). A nut (28) is provided on the threaded section of the shaft (25). The nut (28) passes through the top of the insertion cylinder (20) and is fixed therein. A vertical plate (29) is provided on the top of the insertion cylinder (20). A linear guide rail (30) is provided on the vertical plate (29). The second motor (26) is fixed on the slider on the linear guide rail (30). One end of the shaft (25) located inside the insertion cylinder (20) is positioned away from its inclined opening.

2. The method for rapid revegetation of slopes in arid and hot valley areas according to claim 1, characterized in that: Native dominant climbing plants are propagated or planted in the substrate of the planting trough, and / or seeds of pioneer plants of arid valleys are mixed into the substrate of the planting trough.

3. A method for rapid revegetation of slopes in arid and hot valley areas according to claim 1 or 2, characterized in that: Seeds of tolerant, barren-soil-tolerant plants near the slope were sprayed onto the slope. The seed treatment process was as follows: herbaceous seeds were soaked in water for 6–24 hours, and shrub seeds were soaked in gibberellin for 0.5–2 hours. The treated seeds were then mixed with the original soil and a water-retaining agent, and water was sprayed to maintain a humidity of 40–60%. After 20–40% of the seeds showed signs of sprouting, they were sprayed.

4. The method for rapid revegetation of slopes in arid and hot valley areas according to claim 1, characterized in that: The base (3) has a base (10) at its bottom, an annular groove (11) on its top surface, a limiting block (12) in the annular groove (11) on its bottom surface, a through hole (13) through the axis of the base (3), an internal gear ring (14) in the through hole (13) in the transverse direction, a gear (15) meshing in the internal gear ring (14), and the gear (15) fixed on a first motor (16) on the base (10).

5. A method for rapid revegetation of slopes in arid and hot valley areas according to claim 1, characterized in that: The base (3) is square, with two planting grooves on each side. A support plate (18) is provided on the bottom plate (1). A two-way screw slide (19) is provided horizontally on each side of the base (3) and on the plate surface of the support plate (18). The fixing rod (7) is provided on the slider. The electric telescopic rod (8) is provided on the slider of the two-way screw slide (19) on the support plate (18). The electric telescopic rod (8) corresponds one-to-one with the planting groove on the side of the base (3).

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