River bank vegetation buffer zone and construction method thereof

Abstract

The invention relates to a river bank vegetation buffer zone and a construction method thereof, and relates to the technical field of ecological protection.The buffer zone comprises a plurality of plant modules arranged along a river bank slope, and every two adjacent rows of plant modules are arranged in a stepped staggered mode; the plant module comprises an annular bottom plate fixedly arranged on the slope surface of the river levee, a porous cylinder rotationally arranged at the top of the annular bottom plate and a planting cylinder located in the porous cylinder, and the bottom end of the planting cylinder is fixedly connected to the slope surface of the river levee; a double-effect buffering system is arranged on the porous cylinder body and comprises a plurality of groups of outer buffering assemblies uniformly distributed along the outer circumference of the porous cylinder body and a plurality of groups of inner buffering assemblies uniformly distributed along the inner circumference of the porous cylinder body, and one ends of the outer buffering assemblies and one ends of the inner buffering assemblies abut against the outer wall and the inner wall of the porous cylinder body respectively. According to the buffer strip, a multi-stage buffer structure is formed by the porous cylinder, the outer buffer assembly and the inner buffer assembly, water flow impact energy of different intensities is effectively absorbed, and the plant module is effectively protected.

Description

Technical Field

[0001] The present invention belongs to the technical field of ecological protection, and specifically relates to a riverbank vegetation buffer zone and a construction method thereof. Background Art

[0002] As an ecological engineering measure, riverbank vegetation buffers, by creating a complex system combining plant communities and physical structures, play a vital role in intercepting non-point source pollution, reducing peak flood flows, and improving aquatic ecosystems. Traditional buffers rely primarily on natural vegetation and simple slope protection structures, making them less adaptable to high pollution loads and extreme hydrological conditions. In recent years, some technologies have enhanced the functionality of buffers by introducing modular plant planting units and physical purification components.

[0003] However, existing vegetation buffer zones generally have insufficient buffering performance. Most riverbank vegetation buffer zones adopt fixed structures. Under the impact of floods, plant modules and purification components are easily damaged, and the buffer structure cannot effectively disperse water flow energy, resulting in increased slope erosion and reduced vegetation survival rate. The water purification efficiency is not high. Most existing riverbank vegetation buffer zones rely solely on plant roots to adsorb and filter pollutants, and the purification effect is limited, especially in waters with severe eutrophication or high organic matter content.

[0004] To this end, we provide a riverbank vegetation buffer zone and a construction method thereof to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a riverbank vegetation buffer zone and a construction method thereof in response to the problems of the background technology.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: A riverbank vegetation buffer zone includes a plurality of plant modules arranged along the slope of the riverbank, with two adjacent rows of plant modules arranged in a staggered manner in a stepped manner. The plant modules include an annular base fixed on the slope of the riverbank, a porous cylinder rotatably arranged on the top of the annular base, and a planting cylinder located in the porous cylinder, wherein the bottom end of the planting cylinder is fixedly connected to the slope of the riverbank; the porous cylinder is provided with a double-effect buffer system, which includes a plurality of groups of outer buffer components uniformly distributed along the outer circumference of the porous cylinder and a plurality of groups of inner buffer components uniformly distributed along the inner circumference of the porous cylinder, wherein one end of the outer buffer component and the inner buffer component respectively abut against the outer wall and inner wall of the porous cylinder to absorb the load generated by the impact of water flow.

[0007] As a further optimization solution of the present invention, a plurality of ground rods evenly distributed along the circumference are provided at the bottom of the annular bottom plate.

[0008] As a further optimization scheme of the present invention, the external buffer assembly includes a first concrete block, a first rotating rod and a first spring fixed on the slope of the river embankment. One end of the first rotating rod is rotatably connected to the first concrete block, and the other end is covered with a wear-resistant rubber abutment sleeve to abut 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 groove for planting auxiliary greening plants.

[0009] As a further optimization scheme of the present invention, the internal buffer assembly includes a second concrete block fixed on the slope of the embankment, a second rotating rod and a second spring, one end of the second rotating rod is rotatably connected to the second concrete block, and the other end is covered with a wear-resistant rubber abutment sleeve to abut 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.

[0010] As a further optimization solution of the present invention, a plurality of protrusions cooperating with the first rotating rod and the second rotating rod are evenly distributed on the inner and outer side walls of the porous cylinder in the circumferential direction, respectively, for providing limiting support and contact fulcrums for the rotating rods.

[0011] As a further optimization scheme of the present invention, the upper end fixed sleeve of the planting cylinder is provided with a liquid supply component for releasing purified liquid or nutrient liquid, and the liquid supply component includes a liquid storage ring cylinder and a plurality of blocking members evenly distributed circumferentially at the lower end of the liquid storage ring cylinder; a partition plate is provided in the liquid storage ring cylinder, and the partition plate divides the liquid storage ring cylinder into multiple liquid storage chambers.

[0012] As a further optimization scheme of the present invention, the blocking member includes a fixed plate fixed on the outer wall of the liquid storage ring tube and a movable rod passing through the fixed plate; a cone head is fixed at one end of the movable rod, and a second wedge block is fixed at the other end; a conical liquid outlet hole matching the cone head is provided on the side of the liquid storage ring tube, and a third spring is sleeved on the movable rod between the cone head and the fixed plate; a driving unit for driving the blocking member to move based on the kinetic energy of the porous cylinder to achieve intermittent liquid discharge is provided on the inner wall of the porous cylinder, and the driving unit includes a connecting plate and a first wedge block fixed on the connecting plate, and the first wedge block matches the second wedge block.

[0013] As a further optimization scheme of the present invention, a plurality of purification components evenly distributed along the circumferential direction are provided between the porous cylinder and the planting cylinder; the purification component includes a top seat and a purification cylinder rotatably arranged at the bottom of the top seat, a handle is provided on the top of the top seat, a slide groove is provided on the side of the top seat, and a slide rail matching the slide groove is provided on the inner wall of the porous cylinder to realize detachable installation between the purification component and the porous cylinder; a water inlet is provided on one side of the purification cylinder, a purification unit is provided inside the cylinder, and a strip opening corresponding to the water inlet is provided on the porous cylinder.

[0014] As a further optimization scheme of the present invention, a positioning component for forcing the water inlet to always be located on the water-facing side is further provided between the porous cylinder and the planting cylinder; the positioning component includes a fixed ring plate fixedly mounted on the planting cylinder and a plurality of second magnetic blocks fixed on the top of the fixed ring plate, and a first magnetic block that is attracted to the second magnetic block is fixedly provided at the bottom of the purification cylinder.

[0015] The present invention also provides a method for constructing a riverbank vegetation buffer zone, comprising the following steps: S1. Arrange plant modules on the riverbank slope according to the riverbank slope; S2. Arrange multiple annular base plates in a staggered manner on the riverbank slope, install a rotatable porous cylinder on the top of the annular base plates, and install an outer buffer assembly and an inner buffer assembly inside and outside the porous cylinder respectively; S3. Fix the planting cylinder vertically on the riverbank slope so that it is located in the center of the porous cylinder, fill the planting cylinder with matrix soil suitable for plant growth, and plant corresponding vegetation according to design requirements.

[0016] The beneficial effects of the present invention are: 1. The present invention forms a multi-level buffer structure through a porous cylinder, an external buffer component and an internal buffer component, which effectively absorbs the impact energy of water flows of different intensities. The external buffer component and the internal buffer component simultaneously improve the overall structural stability. The porous cylinder can also effectively protect the plant module. The vegetation distribution of the external buffer component and the planting cylinder enhances the overall ecological landscape effect.

[0017] 2. The present invention utilizes the kinetic energy of the 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 of traditional artificial irrigation and water purification methods on external energy sources such as electricity. The frequency and dosage of liquid release can be intelligently adjusted according to the water flow intensity, thereby improving vegetation maintenance efficiency and water purification effect.

[0018] 3. The purification component and the positioning component of the present invention work together to effectively filter and adsorb suspended matter and organic pollutants in the water. At the same time, larger pollutants such as branches and plastics are intercepted in the purification cylinder to prevent them from continuing to flow into the downstream water body and causing secondary pollution, thereby realizing the integrated functions of water purification, pollutant interception and ecological conservation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Construct a top view of the buffer zone of the present invention; Figure 2 This is a three-dimensional schematic diagram of the overall structure of the plant module of the present invention; Figure 3 Schematic diagram of the internal structure of the porous cylinder of the present invention Figure 1; Figure 4 Schematic diagram of the internal structure of the porous cylinder of the present invention Figure 2 ; Figure 5 Schematic diagram of the porous cylinder structure of the present invention; Figure 6 Schematic diagram of the structure of the outer buffer assembly and the inner buffer assembly of the present invention; Figure 7 It is a schematic structural diagram of the liquid supply component of the present invention; Figure 8 This is a schematic structural diagram of the blocking member of the present invention; Figure 9 It is a schematic structural diagram of the purification component and positioning component of the present invention; Figure 10 Schematic diagram of the internal structure of the purification cartridge of the present invention.

[0020] In the picture: 100, plant module; 1, annular base; 101, ground plug; 2, porous cylinder; 201, protrusion; 202, strip opening; 203, connecting plate; 204, first wedge block; 3, planting cylinder; 4, external buffer assembly; 401, first concrete block; 402, first rotating rod; 403, first spring; 404, planting trough; 5, internal buffer assembly; 501, second concrete block; 502, second rotating rod; 503, second spring; 6, supply Liquid assembly; 601, liquid storage ring cylinder; 602, partition plate; 603, liquid storage chamber; 604, blocking piece; 604a, fixed 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, fixed ring plate; 802, second magnetic block. DETAILED DESCRIPTION

[0021] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example 1 In order to solve the problem that the existing vegetation buffer strips generally have insufficient buffering performance, plant modules and purification components are easily damaged under the impact of floods, resulting in increased slope erosion and reduced vegetation survival rate, please refer to Figures 1-4The present invention provides a riverbank vegetation buffer zone, comprising a plurality of plant modules 100 arranged along the riverbank slope. Two adjacent rows of plant modules 100 are staggered in a stepped manner, and the horizontal offset spacing can be set to 50-80 cm to form a three-dimensional planting array. The staggered layout not only avoids light blocking between the front and rear rows of vegetation, but also utilizes the height difference to form a stacked water flow buffer structure, effectively dispersing the impact energy of floods. The plant module 100 comprises an annular bottom plate 1 fixed on the riverbank slope, a porous cylinder 2 rotatably arranged on the top of the annular bottom plate 1, and a porous cylinder located on the porous cylinder. 2, the planting cylinder 3 is filled with a composite ecological matrix, the bottom of the annular bottom plate 1 is provided with a plurality of ground plug rods 101 evenly distributed along the circumference, and the bottom end of the planting cylinder 3 is fixedly connected to the river bank slope; the porous cylinder 2 is provided with a double-effect buffer system, and the double-effect buffer system includes a plurality of groups of outer buffer components 4 evenly distributed along the outer circumference of the porous cylinder 2 and a plurality of groups 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 are respectively abutted against the outer wall and inner wall of the porous cylinder 2 to absorb the load generated by the impact of water flow.

[0023] The surface of the porous cylinder 2 is evenly distributed with multiple small holes, allowing water to flow through and reducing direct impact force. It can not only reduce the weight of the cylinder and reduce water flow resistance, but also ensure that the water body is in full contact with the plants. When the water flow hits the porous cylinder 2, the porous cylinder 2 rotates, and the elastic parts of the outer buffer component 4 and the inner buffer component 5 are compressed and deformed to absorb the impact force, converting part of the kinetic energy into elastic potential energy.

[0024] like Figure 5-Figure 6 As shown, the external buffer assembly 4 includes a first concrete block 401 fixed on the slope of the river bank, a first rotating rod 402 and a first spring 403. The first concrete block 401 is anchored to the slope of the river bank through an anchor rod. One end of the first rotating rod 402 is rotatably connected to the first concrete block 401, and the other end is covered with a wear-resistant rubber abutment sleeve to abut 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. A planting groove 404 for planting auxiliary greening plants is also provided on the first concrete block 401, and the planting groove 404 can be filled with a permeable ecological matrix.

[0025] The internal buffer assembly 5 includes a second concrete block 501 fixed on the slope of the river embankment, a second rotating rod 502 and a second spring 503. One end of the second rotating rod 502 is rotatably connected to the second concrete block 501, and the other end is covered 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.

[0026] A plurality of protrusions 201 cooperating with the first rotating rod 402 and the second rotating rod 502 are evenly distributed on the inner and outer side walls of the porous cylinder 2 in the circumferential direction, respectively, for providing limiting support and contact fulcrums for the rotating rods.

[0027] Through the synergistic effect of the outer buffer assembly 4 and the inner buffer assembly 5, when the water flow hits 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 realizing two-way buffering 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 external buffer component 4 and the planting cylinder 3 enhances the overall ecological landscape effect.

[0028] The present invention also provides a method for constructing a riverbank vegetation buffer zone, which is suitable for areas susceptible to water erosion, such as urban rivers, mountain streams, and lake banks. It combines ecological restoration and water purification functions, and includes the following steps: S1. Arrange plant modules 100 on the riverbank slope according to the riverbank slope. For example, if the slope is ≤ 0.6%, plant modules 100 are arranged at intervals of 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 arranged at intervals of 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 arranged at intervals of 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 arranged at intervals of 1-2 meters in each row, and the spacing between adjacent rows is 1-1.5 meters. S2. Arrange multiple annular bottom plates 1 in a staggered manner on the riverbank slope, install a rotatable porous cylinder 2 on the top of the annular bottom plates 1, and install an outer buffer assembly 4 and an inner buffer assembly 5 on the inner and outer sides of the porous cylinder 2 respectively; S3. Fix the planting cylinder 3 vertically on the river bank slope so that it is located in the center of the porous cylinder 2. Fill the planting cylinder 3 with matrix soil suitable for plant growth, and plant corresponding vegetation according to design requirements, such as reeds, cattails, irises, etc. that are water-resistant and erosion-resistant. Fill the planting trough 404 with matrix soil suitable for plant growth, and plant corresponding vegetation according to design requirements, such as water plantain, rush, calamus, etc. Usually, the vegetation size of the planting trough 404 is smaller than the vegetation size in the planting cylinder 3.

[0029] Example 2 On the basis of Example 1, in order to solve the problems of uneven release of liquid medicine, dependence on external energy and difficulty in achieving intermittent precise liquid supply, as shown in FIG. Figure 3 、 Figure 7-Figure 8 As shown, the upper end of the planting cylinder 3 is fixedly sleeved with a liquid supply component 6 for releasing purified liquid or nutrient liquid, and the liquid supply component 6 includes a liquid storage ring cylinder 601 and a plurality of blocking members 604 uniformly distributed circumferentially at the lower end of the liquid storage ring cylinder 601; a partition plate 602 is provided in the liquid storage ring cylinder 601, and the partition plate 602 divides the liquid storage ring cylinder 601 into a plurality of liquid storage cavities 603, dividing it into 4-8 independent liquid storage cavities 603, and each liquid storage cavity 603 stores a different purified liquid or nutrient liquid.

[0030] The blocking member 604 includes a fixed plate 604a fixed on the outer wall of the liquid storage ring tube 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 tube 601, and a third spring 604e is sleeved on the movable rod 604b between the cone head 604c and the fixed plate 604a; a driving unit for driving the blocking member 604 to move based on the kinetic energy of the porous cylinder 2 to achieve intermittent liquid discharge is provided on the inner wall of the porous cylinder 2, and the driving unit includes a connecting plate 203 and a first wedge block 204 fixed on the connecting plate 203, and the first wedge block 204 matches the second wedge block 604d.

[0031] When water impacts the porous cylinder 2, 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, and the cone head 604c disengages from the tapered liquid outlet. The liquid in the liquid storage chamber 603 flows out under the action of gravity. When the first wedge block 204 separates from the second wedge block 604d, the third spring 604e pushes the movable rod 604b back to its original position, 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. 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.

[0032] Example 3 On the basis of Example 1 and Example 2, in order to effectively filter and adsorb pollutants in water, and at the same time, to prevent larger dirt such as branches and plastics from continuing to flow into the downstream water body and causing secondary pollution, Figure 3 、 Figure 9-10As shown, a plurality of purification components 7 uniformly distributed along the circumferential direction are provided 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 arranged at the bottom of the top seat 701, a handle is provided on the top of the top seat 701, a slide groove is provided on the side of the top seat 701, and a slide rail matching the slide groove is provided on the inner wall of the porous cylinder 2 to realize the detachable installation between the purification component 7 and the porous cylinder 2; a water inlet 702a is provided on one side of the purification cylinder 702, and a purification unit 702b is provided inside the purification cylinder 702, and a strip opening 202 corresponding to the water inlet 702a is provided on the porous cylinder 2, and the purification unit 702b includes an activated carbon filter, a diatomaceous earth filter layer, a molecular sieve adsorption layer, a fiber filter membrane, etc.

[0033] In order to prevent the intercepted dirt from flowing back out of the purification cylinder 702 from the water inlet 702a during the rotation of the porous cylinder 2, a positioning component 8 is further 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 fixed ring plate 801 fixedly mounted on the planting cylinder 3 and a plurality of second magnetic blocks 802 fixed on the top of the fixed ring plate 801, and a first magnetic block 703 is fixedly provided at the bottom of the purification cylinder 702 to engage with the second magnetic block 802.

[0034] The purification component 7 and the positioning component 8 work together. When water flows through the porous cylinder 2, part of the water flows into the strip opening 202 and flows into the interior of the purification cylinder 702 along the water inlet 702a on the water-facing side. Under the action of the purification unit 702b, effective filtration and adsorption of suspended matter and organic pollutants in the water are achieved. At the same time, larger dirt such as branches and plastics are intercepted in the purification cylinder 702 to prevent them from continuing to enter the downstream water body with the water flow and causing secondary pollution. With the help of the positioning component 8, it is ensured that the water inlet 702a is always facing the incoming flow direction, which not only improves the water flow utilization efficiency and purification effect, but also provides structural guarantees for the centralized collection and regular cleaning of dirt, thereby realizing the integrated functions of water purification, pollutant interception and ecological maintenance.

[0035] The above embodiment merely represents one embodiment of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and such modifications and improvements are all within the scope of protection of the present invention.

Claims

1. A riverbank vegetation buffer zone, comprising a plurality of plant modules (100) arranged along a riverbank slope, wherein two adjacent rows of plant modules (100) are arranged in a staggered manner, and characterized in that: The plant module (100) comprises an annular base plate (1) fixedly arranged on the riverbank slope, a porous cylinder (2) rotatably arranged on the top of the annular base plate (1), and a planting cylinder (3) located in the porous cylinder (2), wherein the bottom end of the planting cylinder (3) is fixedly connected to the riverbank slope; The porous cylinder (2) is provided with a double-effect buffer system, which comprises a plurality of groups of outer buffer components (4) uniformly distributed along the outer circumference of the porous cylinder (2) and a plurality of groups of inner buffer components (5) uniformly distributed along the inner circumference of the porous cylinder (2), one end of each of the outer buffer components (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 the water flow.

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

3. The riparian vegetation buffer strip according to claim 1, characterized in that: The external buffer assembly (4) comprises a first concrete block (401) fixedly arranged on the slope of the riverbank, a first rotating rod (402) and a first spring (403); one end of the first rotating rod (402) is rotatably connected to the first concrete block (401), and the other end is provided with a wear-resistant rubber abutting 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); and a planting groove (404) for planting auxiliary green plants is also provided on the first concrete block (401).

4. The riparian vegetation buffer zone according to claim 3, characterized in that: The inner buffer assembly (5) comprises a second concrete block (501) fixedly arranged on the slope of the riverbank, a second rotating rod (502) and a second spring (503); one end of the second rotating rod (502) is rotatably connected to the second concrete block (501), and the other end is covered with a wear-resistant rubber abutting 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).

5. The riparian vegetation buffer zone according to claim 4, characterized in that: A plurality of protrusions (201) are evenly distributed on the inner and outer side walls of the porous cylinder (2) in the circumferential direction, respectively, and are matched with the first rotating rod (402) and the second rotating rod (502), and are used to provide position limiting support and contact fulcrums for the rotating rods.

6. The riparian vegetation buffer zone according to claim 1, characterized in that: The upper end of the planting cylinder (3) is fixedly sleeved with a liquid supply assembly (6) for releasing purified liquid or nutrient liquid, and the liquid supply assembly (6) comprises a liquid storage ring cylinder (601) and a plurality of blocking members (604) uniformly distributed along the circumference at the lower end of the liquid storage ring cylinder (601); A partition plate (602) is provided in the liquid storage ring cylinder (601), and the partition plate (602) divides the liquid storage ring cylinder (601) into a plurality of liquid storage chambers (603).

7. The riparian vegetation buffer zone according to claim 6, characterized in that: The blocking member (604) comprises a fixed plate (604a) fixed on the outer wall of the liquid storage ring cylinder (601) and a movable rod (604b) penetrating the fixed plate (604a); A cone head (604c) is fixedly provided at one end of the movable rod (604b), and a second wedge block (604d) is fixedly provided at the other end; a cone-shaped liquid outlet hole matching the cone head (604c) is provided on the side surface of the liquid storage ring cylinder (601); and 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 member (604) to move based on the kinetic energy of the porous cylinder (2) to achieve intermittent liquid discharge. The driving unit comprises 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).

8. The riparian vegetation buffer zone according to claim 1, characterized in that: A plurality of purification components (7) uniformly distributed along the circumference are provided 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 arranged at the bottom of the top seat (701), a handle is provided on the top of the top seat (701), a slide groove is provided on the side of the top seat (701), and a slide rail matching the slide groove is provided on the inner wall of the porous cylinder (2) to achieve detachable installation between the purification component (7) and the porous cylinder (2); A water inlet (702a) is provided on one side of the purification cylinder (702), and a purification unit (702b) is provided inside the purification cylinder. A strip-shaped opening (202) corresponding to the water inlet (702a) is provided on the porous cylinder (2).

9. The riparian vegetation buffer zone according to claim 8, characterized in that: A positioning component (8) is also provided between the porous cylinder (2) and the planting cylinder (3) for forcing the water inlet (702a) to always be located on the water-facing side; The positioning assembly (8) comprises a fixed ring plate (801) fixedly mounted on the planting cylinder (3) and a plurality of second magnetic blocks (802) fixed on the top of the fixed ring plate (801); a first magnetic block (703) attracted to the second magnetic block (802) is fixedly mounted on the bottom of the purification cylinder (702).

10. A method for constructing a riverbank vegetation buffer zone, using a riverbank vegetation buffer zone according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, arranging plant modules (100) on the riverbank slope according to the riverbank slope; S2. A plurality of annular bottom plates (1) are arranged in a staggered manner in a stepped manner and fixed on the slope of the river bank. A rotatable porous cylinder (2) is installed on the top of the annular bottom plates (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), respectively. S3. Fix the planting cylinder (3) vertically on the riverbank slope so that it is located in the center of the porous cylinder (2), fill the planting cylinder (3) with matrix soil suitable for plant growth, and plant corresponding vegetation according to design requirements.

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