A riparian vegetation buffer and a method of constructing the same

Abstract

This invention relates to a riverbank vegetation buffer zone and its construction method, belonging to the field of ecological protection technology. The buffer zone includes multiple plant modules set along the riverbank slope, with adjacent rows of plant modules arranged in a stepped, staggered pattern. Each plant module includes a ring-shaped base plate fixed to the riverbank slope, a porous cylinder rotatably mounted on top of the ring-shaped base plate, and a planting cylinder located within the porous cylinder. The bottom end of the planting cylinder is fixedly connected to the riverbank slope. A dual-effect buffer system is provided on the porous cylinder, comprising multiple sets of outer buffer components evenly distributed along the outer circumference of the porous cylinder and multiple sets of inner buffer components evenly distributed along the inner circumference of the porous cylinder. One end of each outer and inner buffer component abuts against the outer and inner walls of the porous cylinder, respectively. This buffer zone, through the porous cylinder, outer buffer components, and inner buffer components forming a multi-level buffer structure, effectively absorbs the impact energy of water flow of varying intensities, effectively protecting the plant modules.

Description

Technical Field

[0001] This invention belongs to the field of ecological protection technology, specifically a riverbank vegetation buffer zone and its construction method. Background Technology

[0002] Riverbank vegetation buffer zones, as an ecological engineering measure, play a vital role in intercepting non-point source pollution, reducing peak flood flows, and improving the aquatic ecological environment by constructing a composite system that combines plant communities with physical structures. Traditional buffer zones mainly rely on natural vegetation and simple slope protection structures, which are difficult to adapt to high-intensity pollution loads and extreme hydrological conditions. In recent years, some technologies have improved the function of buffer zones by introducing modular plant planting units and physical purification components.

[0003] However, existing vegetation buffer zones generally lack sufficient buffering capacity. Most riverbank vegetation buffer zones adopt a fixed structure, which is easily damaged by flood impacts. The buffer structure is unable to effectively disperse the energy of water flow, leading to increased bank erosion and reduced vegetation survival rate. The water purification efficiency is also low. Most existing riverbank vegetation buffer zones rely solely on plant roots to adsorb and filter pollutants, resulting in limited purification effects, especially in waters with severe eutrophication or high organic matter content.

[0004] To address these issues, we provide a riverbank vegetation buffer zone and its construction method. Summary of the Invention

[0005] The purpose of this invention is to address the problems in the prior art by providing a riverbank vegetation buffer zone and a method for constructing it.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A riverbank vegetation buffer zone includes multiple plant modules set along the riverbank slope. Adjacent rows of plant modules are arranged in a stepped, staggered manner. Each plant module includes an annular base plate fixed to the riverbank slope, a porous cylinder rotatably mounted on top of the annular base plate, and a planting cylinder located inside the porous cylinder. The bottom end of the planting cylinder is fixedly connected to the riverbank slope. The porous cylinder is equipped with a dual-effect buffer system, which includes multiple sets of outer buffer components evenly distributed along the outer circumference of the porous cylinder and multiple sets of inner buffer components evenly distributed along the inner circumference of the porous cylinder. One end of each outer and inner buffer component abuts against the outer and inner walls of the porous cylinder, respectively, to absorb the load generated by the impact of water flow.

[0008] As a further optimization of the present invention, the bottom of the annular base plate is provided with a plurality of ground insertion rods evenly distributed along the circumference.

[0009] As a further optimization of the present invention, the external buffer assembly includes a first concrete block, a first rotating rod, and a first spring fixedly mounted on the riverbank slope. One end of the first rotating rod is rotatably connected to the first concrete block, and the other end is fitted with a wear-resistant rubber abutment sleeve that abuts against the outer wall of the porous cylinder. One end of the first spring is fixedly connected to the first concrete block, and the other end is fixedly connected to the first rotating rod. The first concrete block is also provided with a planting trough for planting auxiliary greening plants.

[0010] As a further optimization of the present invention, the inner buffer assembly includes a second concrete block, a second rotating rod, and a second spring fixedly mounted on the riverbank slope. One end of the second rotating rod is rotatably connected to the second concrete block, and the other end is fitted with a wear-resistant rubber abutment sleeve that abuts against the inner wall of the porous cylinder. One end of the second spring is fixedly connected to the second concrete block, and the other end is fixedly connected to the second rotating rod.

[0011] As a further optimization of the present invention, the inner and outer sides of the porous cylinder are each provided with a plurality of protrusions that cooperate with the first rotating rod and the second rotating rod, which are used to provide limiting support and contact fulcrum for the rotating rod.

[0012] As a further optimization of the present invention, the upper end of the planting cylinder is fixedly fitted with a liquid supply component for releasing purification liquid or nutrient liquid. The liquid supply component includes a liquid storage ring cylinder and a plurality of plugs evenly distributed along the lower end of the liquid storage ring cylinder in the circumferential direction. A partition plate is provided inside the liquid storage ring cylinder, and the partition plate divides the liquid storage ring cylinder into a plurality of liquid storage chambers.

[0013] As a further optimization of the present invention, the blocking component includes a fixed plate fixed to the outer wall of the liquid storage ring cylinder and a movable rod extending through the fixed plate; one end of the movable rod is fixedly provided with a cone head, and the other end is fixedly provided with a second wedge block; the side of the liquid storage ring cylinder is provided with a conical liquid outlet hole that matches the cone head; a third spring is sleeved on the movable rod between the cone head and the fixed plate; the inner wall of the porous cylinder is provided with a driving unit for driving the blocking component to move based on the kinetic energy of the porous cylinder to achieve intermittent liquid discharge; the driving unit includes a connecting plate and a first wedge block fixed to the connecting plate, the first wedge block matching the second wedge block.

[0014] As a further optimization of the present invention, a plurality of purification components are provided between the porous cylinder and the planting cylinder, evenly distributed along the circumference; the purification component includes a top seat and a purification cylinder rotatably disposed at the bottom of the top seat, the top of the top seat is provided with a handle, the side of the top seat is provided with a sliding groove, and the inner wall of the porous cylinder is provided with a sliding rail that matches the sliding groove, so as to realize the detachable installation between the purification component and the porous cylinder; a water inlet is opened on one side of the purification cylinder, and a purification unit is provided inside it, and a strip-shaped opening corresponding to the water inlet is opened on the porous cylinder.

[0015] As a further optimization of the present invention, a positioning component is provided between the porous cylinder and the planting cylinder to force the water inlet to always be located on the water-facing side; the positioning component includes a fixing ring plate fixedly sleeved on the planting cylinder and a plurality of second magnetic blocks fixed on the top of the fixing ring plate, and a first magnetic block that attracts the second magnetic blocks is fixedly provided at the bottom of the purification cylinder.

[0016] This invention also provides a method for constructing a riverbank vegetation buffer zone, comprising the following steps:

[0017] S1. Plant modules are laid out on the riverbank slope according to the riverbank slope.

[0018] S2. Multiple annular base plates are arranged in a stepped and staggered manner and fixed on the riverbank slope. A rotatable perforated cylinder is installed on the top of the annular base plates. An outer buffer component and an inner buffer component are installed on the inner and outer sides of the perforated cylinder, respectively.

[0019] S3. Vertically fix the planting cylinder to the riverbank slope so that it is located in the center of the porous cylinder. Fill the planting cylinder with substrate soil suitable for plant growth and plant the corresponding vegetation according to the design requirements.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. This invention uses a multi-level buffer structure composed of a porous cylinder, an outer buffer component, and an inner buffer component to effectively absorb the impact energy of water flow of different intensities. The outer and inner buffer components simultaneously improve the overall structural stability, and the porous cylinder can also effectively protect the plant module. The vegetation distribution of the outer buffer component and the planting cylinder enhances the overall ecological landscape effect.

[0022] 2. This invention utilizes the kinetic energy of a porous cylinder to drive the liquid supply component to release slow-release purification liquid or nutrient liquid required by vegetation. This not only achieves efficient energy recovery and utilization, but also avoids the dependence on external energy sources such as electricity in traditional artificial irrigation and water purification methods. The release frequency and dosage of the liquid can be intelligently adjusted according to the water flow intensity, thereby improving the efficiency of vegetation maintenance and the effect of water purification.

[0023] 3. The purification component and positioning component of this invention work together to effectively filter and adsorb suspended solids and organic pollutants in the water. At the same time, larger pollutants such as branches and plastics are trapped in the purification cylinder to prevent them from continuing to flow into the downstream water body and causing secondary pollution, thus realizing the integrated function of water purification, pollutant interception and ecological maintenance. Attached Figure Description

[0024] Figure 1 A top view is constructed for the buffer strip of the present invention;

[0025] Figure 2This is a three-dimensional schematic diagram of the overall structure of the plant module of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the porous cylindrical body of the present invention. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the internal structure of the porous cylindrical body of the present invention. Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the porous cylindrical structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the external buffer component and the internal buffer component of the present invention;

[0030] Figure 7 This is a schematic diagram of the liquid supply component structure of the present invention;

[0031] Figure 8 This is a schematic diagram of the blocking component structure of the present invention;

[0032] Figure 9 This is a schematic diagram of the purification component and positioning component of the present invention;

[0033] Figure 10 This is a schematic diagram of the internal structure of the purification cylinder of the present invention.

[0034] In the picture:

[0035] 100. Plant module; 1. Annular base plate; 101. Ground insertion rod; 2. Perforated cylinder; 201. Protrusion; 202. Strip opening; 203. Connecting plate; 204. First wedge block; 3. Planting cylinder; 4. Outer buffer assembly; 401. First concrete block; 402. First rotating rod; 403. First spring; 404. Planting trough; 5. Inner buffer assembly; 501. Second concrete block; 502. Second rotating rod; 503. Second spring; 6. Supply 601. Liquid storage ring cylinder; 602. Divider plate; 603. Liquid storage chamber; 604. Blocking component; 604a. Fixing plate; 604b. Movable rod; 604c. Cone head; 604d. Second wedge block; 604e. Third spring; 7. Purification assembly; 701. Top seat; 702. Purification cylinder; 702a. Water inlet; 702b. Purification unit; 703. First magnetic block; 8. Positioning assembly; 801. Fixing ring plate; 802. Second magnetic block. Detailed Implementation

[0036] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0037] Example 1

[0038] To address the issue of insufficient buffering capacity in existing vegetation buffer zones, which makes plant modules and purification components susceptible to damage under flood impact, leading to accelerated slope erosion and reduced vegetation survival rates, please refer to [link to relevant documentation]. Figures 1-4 This invention provides a riverbank vegetation buffer zone, comprising multiple plant modules 100 arranged along the riverbank slope. Adjacent rows of plant modules 100 are arranged in a stepped, staggered manner, with a horizontal staggered spacing of 50-80cm, forming a three-dimensional planting array. The staggered layout avoids light shading between rows of vegetation and utilizes the height difference to form a layered water flow buffer structure, effectively dispersing the impact energy of floods. The plant module 100 includes an annular base plate 1 fixed on the riverbank slope, a porous cylinder 2 rotatably mounted on the top of the annular base plate 1, and a [missing information - likely a component or structure] located on the porous cylinder. The planting cylinder 3 inside the 2 is filled with a composite ecological substrate. The bottom of the annular base plate 1 is provided with multiple ground-inserting rods 101 evenly distributed along the circumference. The bottom end of the planting cylinder 3 is fixedly connected to the riverbank slope. The porous cylinder 2 is provided with a dual-effect buffer system. The dual-effect buffer system includes multiple sets of outer buffer components 4 evenly distributed along the outer circumference of the porous cylinder 2 and multiple sets of inner buffer components 5 evenly distributed along the inner circumference of the porous cylinder 2. One end of the outer buffer component 4 and the inner buffer component 5 respectively abuts against the outer wall and the inner wall of the porous cylinder 2 to absorb the load generated by the water flow impact.

[0039] The porous cylinder 2 has multiple small holes evenly distributed on its surface, allowing water to flow through and reducing direct impact. This not only reduces the weight of the cylinder and lowers water flow resistance, but also ensures that the water and plants are in full contact. When the water flows into the porous cylinder 2, the porous cylinder 2 rotates. The elastic elements of the outer buffer component 4 and the inner buffer component 5 are compressed and deformed to absorb the impact force, converting some of the kinetic energy into elastic potential energy.

[0040] like Figures 5-6As shown, the external buffer assembly 4 includes a first concrete block 401, a first rotating rod 402, and a first spring 403 fixedly installed on the riverbank slope. The first concrete block 401 is anchored to the riverbank slope by anchor rods. One end of the first rotating rod 402 is rotatably connected to the first concrete block 401, and the other end is fitted with a wear-resistant rubber abutment sleeve that abuts against the outer wall of the porous cylinder 2. One end of the first spring 403 is fixedly connected to the first concrete block 401, and the other end is fixedly connected to the first rotating rod 402. The first concrete block 401 is also provided with a planting trough 404 for planting auxiliary greening plants. The planting trough 404 can be filled with permeable ecological substrate.

[0041] The inner buffer assembly 5 includes a second concrete block 501, a second rotating rod 502, and a second spring 503, which are fixedly installed on the riverbank slope. One end of the second rotating rod 502 is rotatably connected to the second concrete block 501, and the other end is fitted with a wear-resistant rubber abutment sleeve that abuts against the inner wall of the porous cylinder 2. One end of the second spring 503 is fixedly connected to the second concrete block 501, and the other end is fixedly connected to the second rotating rod 502.

[0042] The inner and outer sides of the porous cylinder 2 are evenly distributed with multiple protrusions 201 that cooperate with the first rotating rod 402 and the second rotating rod 502, which are used to provide limiting support and contact fulcrum for the rotating rods.

[0043] Through the coordinated action of the outer buffer component 4 and the inner buffer component 5, when water impacts the porous cylinder 2, the first rotating rod 402 and the second rotating rod 502 can rotate around their respective concrete blocks at a certain angle, and absorb the impact energy through the deformation of the first spring 403 and the second spring 503. Figure 6 As shown, when the porous cylinder 2 rotates clockwise, the first spring 403 is stretched and the second spring 503 is compressed, thereby achieving bidirectional buffer protection for the porous cylinder 2; the first concrete block 401 and the second concrete block 501 have both structural stability and vegetation cultivation functions, and the porous cylinder 2 can also effectively protect the plant module 100. The vegetation distribution of the outer buffer component 4 and the planting cylinder 3 enhances the overall ecological landscape effect.

[0044] This invention also provides a method for constructing a riverbank vegetation buffer zone, applicable to areas susceptible to water erosion such as urban rivers, mountain streams, and lake shores, combining ecological restoration and water purification functions, including the following steps:

[0045] S1. Plant modules 100 are laid out on the riverbank slope according to the riverbank slope. For example, if the slope is ≤0.6%, plant modules 100 are placed every 5-6 meters in each row, and the spacing between adjacent rows is 3-4 meters. If the slope is 0.6%≤1%, plant modules 100 are placed every 3-5 meters in each row, and the spacing between adjacent rows is 2-3 meters. If the slope is 1%≤2%, plant modules 100 are placed every 2-3 meters in each row, and the spacing between adjacent rows is 1.5-2 meters. If the slope is 2%≤3%, plant modules 100 are placed every 1-2 meters in each row, and the spacing between adjacent rows is 1-1.5 meters.

[0046] S2. Multiple annular base plates 1 are arranged in a stepped and staggered manner and fixed on the riverbank slope. A rotatable porous cylinder 2 is installed on the top of the annular base plate 1. An outer buffer component 4 and an inner buffer component 5 are installed on the inner and outer sides of the porous cylinder 2, respectively.

[0047] S3. Vertically fix the planting cylinder 3 to the riverbank slope so that it is located in the center of the porous cylinder 2. Fill the planting cylinder 3 with substrate soil suitable for plant growth and plant the corresponding vegetation according to the design requirements, such as water-resistant and erosion-resistant reeds, cattails, irises, etc. Fill the planting trough 404 with substrate soil suitable for plant growth and plant the corresponding vegetation according to the design requirements, such as water onions, rushes, calamus, etc. Usually, the vegetation size in the planting trough 404 should be smaller than the vegetation size in the planting cylinder 3.

[0048] Example 2

[0049] Based on Example 1, in order to solve the problems of uneven drug release, reliance on external energy, and difficulty in achieving intermittent and precise drug delivery, such as... Figure 3 , Figures 7-8 As shown, the upper end of the planting cylinder 3 is fixedly fitted with a liquid supply component 6 for releasing purification liquid or nutrient liquid. The liquid supply component 6 includes a liquid storage ring cylinder 601 and multiple plugs 604 evenly distributed circumferentially at the lower end of the liquid storage ring cylinder 601. A partition plate 602 is provided inside the liquid storage ring cylinder 601, which divides the liquid storage ring cylinder 601 into multiple liquid storage chambers 603, dividing it into 4-8 independent liquid storage chambers 603. Each liquid storage chamber 603 stores different purification liquid or nutrient liquid.

[0050] The blocking component 604 includes a fixed plate 604a fixed to the outer wall of the liquid storage ring cylinder 601 and a movable rod 604b passing through the fixed plate 604a; a cone head 604c is fixed at one end of the movable rod 604b and a second wedge block 604d is fixed at the other end; a conical liquid outlet hole matching the cone head 604c is provided on the side of the liquid storage ring cylinder 601; a third spring 604e is sleeved on the movable rod 604b between the cone head 604c and the fixed plate 604a; a driving unit is provided on the inner wall of the porous cylinder 2 for driving the blocking component 604 to move based on the kinetic energy of the porous cylinder 2 to achieve intermittent liquid discharge; the driving unit includes a connecting plate 203 and a first wedge block 204 fixed on the connecting plate 203; the first wedge block 204 matches the second wedge block 604d.

[0051] When the water flow impacts the porous cylinder 2 and causes it to rotate, the drive unit rotates synchronously with the porous cylinder 2. The inclined surface of the first wedge block 204 contacts and slides with the inclined surface of the second wedge block 604d, pushing the movable rod 604b to move. The cone head 604c disengages from the conical liquid outlet, and the liquid in the storage chamber 603 flows out under gravity. When the first wedge block 204 separates from the second wedge block 604d, the third spring 604e pushes the movable rod 604b to reset, and the cone head 604c reseals the liquid outlet, thus achieving an energy-saving, environmentally friendly, and controllable intermittent liquid supply mechanism. It is driven entirely by water flow energy, requiring no external energy source. The faster the water flow, the higher the frequency of liquid release, achieving dynamic matching with the pollution load. While ensuring the purification effect of the riverbank vegetation buffer zone, it significantly reduces operating costs and maintenance difficulty.

[0052] Example 3

[0053] Based on Examples 1 and 2, in order to effectively filter and adsorb pollutants in the water, and to prevent larger debris such as branches and plastics from continuing to flow into downstream water bodies and causing secondary pollution, such as... Figure 3 , Figures 9-10 As shown, multiple purification components 7 are evenly distributed circumferentially between the porous cylinder 2 and the planting cylinder 3. The purification component 7 includes a top seat 701 and a purification cylinder 702 rotatably disposed at the bottom of the top seat 701. The top of the top seat 701 is provided with a handle, and the side of the top seat 701 is provided with a sliding groove. The inner wall of the porous cylinder 2 is provided with a sliding rail that matches the sliding groove, so as to realize the detachable installation between the purification component 7 and the porous cylinder 2. A water inlet 702a is opened on one side of the purification cylinder 702, and a purification unit 702b is provided inside it. A strip-shaped opening 202 corresponding to the water inlet 702a is opened on the porous cylinder 2. The purification unit 702b includes an activated carbon filter, a diatomaceous earth filter layer, a molecular sieve adsorption layer, a fiber filter membrane, etc.

[0054] To prevent the trapped dirt from flowing out of the purification cylinder 702 from the inlet 702a during the rotation of the porous cylinder 2, a positioning component 8 is provided between the porous cylinder 2 and the planting cylinder 3 to force the inlet 702a to always be located on the water-facing side; the positioning component 8 includes a fixing ring plate 801 fixedly sleeved on the planting cylinder 3 and a plurality of second magnetic blocks 802 fixed on the top of the fixing ring plate 801, and a first magnetic block 703 that attracts the second magnetic blocks 802 is fixedly provided at the bottom of the purification cylinder 702.

[0055] The purification component 7 and the positioning component 8 work together. When water flows through the porous cylinder 2, some of the water enters through the strip opening 202 and flows into the purification cylinder 702 through the inlet 702a on the water-facing side. Under the action of the purification unit 702b, the suspended solids and organic pollutants in the water are effectively filtered and adsorbed. At the same time, larger debris such as branches and plastics are trapped in the purification cylinder 702 to prevent them from continuing to enter the downstream water body and causing secondary pollution. The positioning component 8 ensures that the inlet 702a is always facing the direction of the incoming flow, which not only improves the efficiency of water utilization and purification effect, but also provides structural protection for the centralized collection and regular cleaning of debris, thereby realizing the integrated function of water purification, pollutant interception and ecological maintenance.

[0056] The above-described embodiments are merely one implementation of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A riparian vegetation buffer zone comprising a plurality of plant modules (100) arranged along a river bank slope surface, two adjacent rows of the plant modules (100) being staggered in a step-like manner, characterized in that: The plant module (100) includes an annular base plate (1) fixed on the riverbank slope, a porous cylinder (2) rotatably mounted on the top of the annular base plate (1), and a planting cylinder (3) located inside the porous cylinder (2). The bottom end of the planting cylinder (3) is fixedly connected to the riverbank slope. The porous cylinder (2) is provided with a dual-effect buffer system, which includes multiple sets of outer buffer components (4) evenly distributed along the outer circumference of the porous cylinder (2) and multiple sets of inner buffer components (5) evenly distributed along the inner circumference of the porous cylinder (2). One end of the outer buffer component (4) and the inner buffer component (5) respectively abuts against the outer wall and the inner wall of the porous cylinder (2) to absorb the load generated by the impact of water flow. The external buffer assembly (4) includes a first concrete block (401), a first rotating rod (402), and a first spring (403) fixed on the riverbank slope. One end of the first rotating rod (402) is rotatably connected to the first concrete block (401), and the other end is fitted with a wear-resistant rubber abutment sleeve that abuts against the outer wall of the porous cylinder (2). One end of the first spring (403) is fixedly connected to the first concrete block (401), and the other end is fixedly connected to the first rotating rod (402). The first concrete block (401) is also provided with a planting trough (404) for planting auxiliary greening plants. The inner buffer assembly (5) includes a second concrete block (501), a second rotating rod (502), and a second spring (503) fixedly installed on the riverbank slope. One end of the second rotating rod (502) is rotatably connected to the second concrete block (501), and the other end is fitted with a wear-resistant rubber abutment sleeve that abuts against the inner wall of the porous cylinder (2). One end of the second spring (503) is fixedly connected to the second concrete block (501), and the other end is fixedly connected to the second rotating rod (502). The porous cylinder (2) has multiple protrusions (201) evenly distributed on the inner and outer sides of its circumferential surface, which cooperate with the first rotating rod (402) and the second rotating rod (502) to provide limiting support and contact fulcrum for the rotating rods. Multiple purification components (7) are provided between the porous cylinder (2) and the planting cylinder (3) along the circumferential direction. The purification component (7) includes a top seat (701) and a purification cylinder (702) rotatably disposed at the bottom of the top seat (701). The top of the top seat (701) is provided with a handle, and the side of the top seat (701) is provided with a sliding groove. The inner wall of the porous cylinder (2) is provided with a sliding rail that matches the sliding groove, so as to realize the detachable installation between the purification component (7) and the porous cylinder (2). The purification cylinder (702) has an inlet (702a) on one side and a purification unit (702b) inside. The porous cylinder (2) has a strip opening (202) corresponding to the inlet (702a).

2. A riparian vegetated buffer strip according to claim 1, characterized in that: The bottom of the annular base plate (1) is provided with a plurality of ground insertion rods (101) evenly distributed along the circumference.

3. A riparian vegetated buffer zone according to claim 1, characterized in that: The upper end of the planting cylinder (3) is fixedly fitted with a liquid supply component (6) for releasing purification liquid or nutrient liquid. The liquid supply component (6) includes a liquid storage ring cylinder (601) and a plurality of plugs (604) evenly distributed in the circumferential direction at the lower end of the liquid storage ring cylinder (601). The liquid storage ring cylinder (601) is provided with a partition plate (602), which divides the liquid storage ring cylinder (601) into multiple liquid storage chambers (603).

4. A riparian vegetated buffer strip according to claim 3, characterised in that: The blocking component (604) includes a fixed plate (604a) fixed to the outer wall of the liquid storage ring (601) and a movable rod (604b) that passes through the fixed plate (604a). One end of the movable rod (604b) is fixed with a cone head (604c), and the other end is fixed with a second wedge block (604d). The side of the liquid storage ring cylinder (601) is provided with a conical liquid outlet hole that matches the cone head (604c). A third spring (604e) is sleeved on the movable rod (604b) between the cone head (604c) and the fixed plate (604a). The inner wall of the porous cylinder (2) is provided with a drive unit for driving the movement of the blockage member (604) based on the kinetic energy of the porous cylinder (2) to achieve intermittent liquid discharge. The drive unit includes a connecting plate (203) and a first wedge block (204) fixed on the connecting plate (203). The first wedge block (204) matches a second wedge block (604d).

5. A riparian vegetated buffer strip according to claim 4, characterised in that: A positioning component (8) is also provided between the porous cylinder (2) and the planting cylinder (3) to force the water inlet (702a) to always be located on the water-facing side; The positioning component (8) includes a fixing ring plate (801) fixedly sleeved on the planting cylinder (3) and a plurality of second magnetic blocks (802) fixed on the top of the fixing ring plate (801). The bottom of the purification cylinder (702) is fixedly provided with a first magnetic block (703) that attracts the second magnetic block (802).

6. A method for constructing a riparian vegetation buffer zone using a riparian vegetation buffer zone according to any one of claims 1 to 5, characterized in that, Includes the following steps: S1. Plant modules (100) are laid out on the riverbank slope according to the riverbank slope. S2. Multiple annular base plates (1) are arranged in a staggered manner on the riverbank slope. A rotatable porous cylinder (2) is installed on the top of the annular base plate (1). An outer buffer assembly (4) and an inner buffer assembly (5) are installed on the inner and outer sides of the porous cylinder (2). S3. Fix the planting cylinder (3) vertically to the riverbank slope so that it is located in the center of the porous cylinder (2). Fill the planting cylinder (3) with substrate soil suitable for plant growth and plant the corresponding vegetation according to the design requirements.

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