River and lake water ecological management equipment and method

By installing saw blades on aeration pipes, the movement of the aeration pipes drives the saw blades to cut the roots, solving the problem of excessive root growth of submerged plants penetrating the bottom mud, and achieving efficient root pruning and ecological protection.

CN120167246BActive Publication Date: 2025-11-18INST OF WATER RESOURCES FOR PASTERAL AREA MINIST OF WATER RESOURCES P R C
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Patent Information

Application Number
CN202510588813.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2025-11-18
Estimated Expiration
2045-05-08

AI Technical Summary

Technical Problem

When submerged plants are cultivated in water, their roots tend to grow excessively and penetrate into the bottom mud, causing secondary pollution after rotting. Traditional pruning methods are inefficient and ecologically damaging, while mechanical methods are complex and have poor cleaning effects.

Method used

It employs a floating hose, aquatic plant cultivation components, a linkage mechanism, and a root cutting module. The root system is cut by a saw blade mounted on an aeration pipe. The movement of the aeration pipe drives the saw blade to reciprocate in a linear motion. Combined with fiber optic sensors to monitor root growth in real time, it automatically cuts off excess roots.

Benefits of technology

It effectively cuts off excessively grown roots, prevents rot and pollution, improves pruning efficiency, maintains healthy root growth at the bottom of the water, avoids blade damage, simplifies the mechanical structure, and improves cleaning effect.

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Abstract

The present application relates to the technical field of lake water ecology, and more particularly to a river and lake water ecology management device and method. The river and lake water ecology management device comprises a floating hose, a water green plant cultivation assembly, a linkage mechanism and a root system cutting module. The side of the floating hose is provided with an aeration pipe. The water green plant cultivation assembly comprises a floating body base and a cultivation disc arranged on the top of the floating body base. The floating body base is flexibly connected to the floating hose and floats on the surface of the river and lake. The water green plant cultivation assembly is provided with a planting hole penetrating through the cultivation disc and the floating body base. The linkage mechanism comprises a driving seat sleeved on the aeration pipe and a driving rod connected to the driving seat to drive the driving seat to move relative to the floating body base. According to the growth habit of water green plants, even if the saw blade trims the root system, it can still ensure that the root system has sufficient length on the water bottom, thereby solving the problem that the plant root system is easy to overgrow and penetrate into the bottom mud, causing secondary pollution after rotting.
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Description

Technical Field

[0001] This invention relates to the field of lake water ecological technology, and in particular to a device and method for river and lake water ecological management. Background Technology

[0002] River and lake water undergoes ecological treatment through aquatic plants. To improve purification efficiency and quality, current ecological restoration projects often employ a combination of aeration and submerged plants. Submerged plants are cultivated in rivers and lakes using cultivation trays and floating islands. Through continuous cultivation, the plants survive for a long time, achieving the goal of continuous purification of rivers and lakes.

[0003] Existing methods for cultivating submerged plants in water have the following drawbacks: plant roots tend to grow excessively and penetrate into the bottom mud, causing secondary pollution after rotting; traditional manual root pruning is inefficient and ecologically damaging; and mechanical structures are complex and have poor cleaning effects. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a river and lake water ecological management device, comprising a floating hose, an aquatic plant cultivation component, a linkage mechanism, and a root cutting module. The floating hose has an aeration pipe on its side and a float on its bottom. The aquatic plant cultivation component is positioned near the floating hose and includes a float base and a cultivation tray on top of the float base. The float base flexibly connects to the floating hose and floats on the river or lake surface. The aquatic plant cultivation component has planting holes that connect the cultivation tray and the float base. The linkage mechanism includes a drive seat fitted onto the aeration pipe and a drive rod connected to the drive seat to move relative to the float base. The aeration pipe is located on the bottom side of the aquatic plant cultivation component. The root cutting module includes a saw blade mounted on the drive seat, extending towards the bottom side of the cultivation tray. The aeration pipe is parallel to and above the saw blade and has aeration holes.

[0005] As a further preferred embodiment, the floating hose is provided with sealing end caps at both ends, and a connector is installed on one end of the sealing end cap.

[0006] As a further preferred embodiment, the aquatic plant cultivation components are at least two sets symmetrically arranged on both sides of the floating hose, and each set of aquatic plant cultivation components on the same side has at least two locations, one at the front and one at the back. The aeration pipes are at least two sets symmetrically arranged on both sides of the floating hose, and each set of aeration pipes on the same side consists of several unit pipes connected to the side of the floating hose. Each aquatic plant cultivation component has several unit pipes corresponding to its bottom side, and each unit pipe has a saw blade mounted on the drive seat nearby.

[0007] As a further preferred embodiment, the saw blade is inclined to the unit tube, the saw blade and the unit tube are spaced apart, and saw blades are provided on both sides of the saw blade, with a gap between the saw blades of two adjacent saw blades.

[0008] As a further preferred option, the unit tube is a split type, which is connected to the floating hose through a swivel joint, allowing the unit tube to rotate.

[0009] As a further preferred embodiment, the same unit tube is provided with multiple aeration holes, some of which are opened upward relative to the floating base, and some of which face the top of the saw blade.

[0010] As a further preferred embodiment, the drive rod is a split type of two rods, one drive rod is connected to a drive seat on one side and the other drive rod is connected to a drive seat on the other side. The linkage mechanism also includes a drive pair connected between the two drive rods and a drive disc that drives the drive pair. The drive pair has an oval hole, and the drive disc has a drive eccentric shaft that slides in the oval hole. The drive disc is connected to a motor, and the motor is fixed to the float.

[0011] As a further preferred option, the floating hose, aeration pipe, and linkage mechanism are all made of corrosion-resistant HDPE plastic pipe, and the cultivation tray in the aquatic green plant cultivation component is made of HDPE cultivation basket.

[0012] A method for river and lake water ecological management includes the following steps:

[0013] Step s01, Plant selection: Select submerged plants (such as Vallisneria natans and Potamogeton crispus) and emergent plants (such as Reed and Typha orientalis) and plant them together in a cultivation tray at a ratio of 3:1;

[0014] Step s02, Floating pipe network layout: Connect the two sides of the 200mm diameter floating hose to the aquatic plant cultivation component with hemp rope and place it on the lake surface, maintaining a swing margin of 0.2-0.5m, and then anchor the floating hose.

[0015] Step s03, Micropore Aeration Control: Gas is introduced into the floating hose, and pulse aeration is implemented through the aeration pipe at an aeration intensity of 0.3m. 3 / (m·h), the working cycle is 15min aeration / 45min rest; using the 2-3mm microbubbles generated by aeration to form an oxide layer on the root surface;

[0016] Step s04: The root growth rate is monitored in real time by fiber optic sensors. When the daily growth is greater than 8cm, the cutting program is triggered, and the root cutting module is activated by the linkage mechanism to cut off the excess roots.

[0017] The advantages of this invention compared to the prior art are:

[0018] 1. The drive unit moves the saw blade in a reciprocating linear motion relative to the bottom of the floating base, effectively sawing the roots. The floating base is not fixed but connected to the aeration pipe via flexible connectors such as rope or silicone dampers. Therefore, the floating base sways relative to the aeration pipe due to the lake's surface movement, causing the cultivation tray to sway as well. This movement, in turn, moves the roots relative to the saw blade. As the saw blade cuts the roots, this relative motion effectively brings the roots closer to the blade, increasing the cutting range and quality. The saw blade, along with the aeration pipe, moves away from the bottom of the floating base. Based on the growth habits of aquatic plants, even after the saw blade trims the roots, sufficient root length remains at the bottom, preventing excessive root growth that can penetrate the sediment and cause secondary pollution.

[0019] 2. The saw blade is mounted on the aeration pipe via a drive seat. The aeration pipe extends from a floating hose and lies horizontally in the water at the bottom of the floating base. During the growth of aquatic plants, the aeration pipe not only aerates the roots and aids in plant growth, but also provides stable guidance for the movement of the drive seat carrying the saw blade. Furthermore, during the sawing action, the aeration pipe supplies gas to the roots, assisting the water flow in flushing the roots away from the bottom. The gas also penetrates any obstructions on the roots, keeping them clean and preventing damage to the saw blade's cutting edge. Attached Figure Description

[0020] Figure 1 A schematic diagram from a first-view perspective of a river and lake water ecological management device provided for an embodiment of the present invention;

[0021] Figure 2 A river and lake water ecological management device provided for embodiments of the present invention comprises Figure 1 Enlarged schematic diagram of part A;

[0022] Figure 3 A river and lake water ecological management device provided for embodiments of the present invention comprises Figure 1 A schematic diagram illustrating the second perspective.

[0023] Figure 4 A river and lake water ecological management device provided for embodiments of the present invention comprises Figure 3 Enlarged schematic diagram of section B;

[0024] Figure 5 A river and lake water ecological management device provided for embodiments of the present invention comprises Figure 1 The diagram illustrates the concept from a third-person perspective;

[0025] Figure 6 This is a schematic diagram of the end plan of a river and lake water ecological management device provided for an embodiment of the present invention.

[0026] In the diagram: 10. Floating hose; 20. Aquatic plant cultivation component; 30. Linkage mechanism; 40. Root cutting module; 101. Aeration pipe; 102. Float; 210. Float base; 220. Cultivation tray; 230. Planting hole; 310. Drive seat; 320. Drive rod; 410. Saw blade; 103. Aeration hole; 104. Sealing end cap; 105. Connector; 106. Unit tube; 330. Drive pair; 340. Drive disc; 350. Oval hole; 360. Drive eccentric shaft. Detailed Implementation

[0027] The above and other embodiments and advantages 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.

[0028] In one implementation, such as Figures 1-6 As shown:

[0029] This embodiment provides a river and lake water ecological management device, including a floating hose 10, an aquatic plant cultivation component 20, a linkage mechanism 30, and a root cutting module 40. The floating hose 10 has an aeration pipe 101 on its side and a float 102 on its bottom. The aquatic plant cultivation component 20 is located near the floating hose 10 and includes a float base 210 and a cultivation tray 220 on top of the float base 210. The float base 210 is flexibly connected to the floating hose 10 and floats on the river or lake surface. The aquatic plant cultivation component 20 has a through-hole... The planting holes 230 of the cultivation tray 220 and the floating base 210 are connected. The linkage mechanism 30 includes a drive seat 310 sleeved on the aeration pipe 101 and a drive rod 320 connected to the drive seat 310 to drive the drive seat 310 to move relative to the floating base 210. The aeration pipe 101 is located on the bottom side of the aquatic green plant cultivation component 20. The root cutting module 40 includes a saw blade 410 installed on the drive seat 310. The saw blade 410 extends toward the bottom side of the cultivation tray 220. The aeration pipe 101 is parallel to the area above the saw blade 410 and has aeration holes 103.

[0030] In this embodiment, the drive rod 320 drives the drive seat 310, which in turn drives the saw blade 410 to perform a reciprocating linear motion relative to the bottom of the floating base 210. During the growth of aquatic plants, their roots are submerged underwater and grow towards the lake bottom silt. To prevent the roots from directly penetrating the silt and becoming contaminated, the reciprocating linear motion of the saw blade 410 relative to the bottom of the floating base 210 is equivalent to sawing the roots. The floating base 210 is not fixed but is flexible. Flexible connectors, such as hemp rope or silicone dampers, are attached near the aeration pipe 101. Therefore, the floating base 210 sways relative to the aeration pipe 101 due to the ripples on the lake surface. This swaying of the cultivation tray 220 relative to the aeration pipe 101, along with the floating base 210, effectively moves the root system relative to the saw blade 410. Thus, when the saw blade 410 cuts the roots, this relative movement effectively brings the roots closer to the saw blade 410, increasing the cutting range and quality. The saw blade 410, along with the aeration pipe 101, is located away from the bottom of the floating base 210. Based on the growth habits of aquatic plants, even if the saw blade 410 trims the roots, it still ensures that the roots have sufficient length to remain on the bottom, thus solving the problem of excessive root growth that penetrates the bottom mud and causes secondary pollution after rotting.

[0031] In this embodiment, the saw blade 410 is mounted on the aeration pipe 101 via the drive seat 310. The aeration pipe 101 extends from the floating hose 10 and lies horizontally in the water at the bottom of the floating base 210. During the growth of aquatic plants, the aeration pipe 101 not only aerates and oxygenates the roots, assisting plant growth, but also provides stable guidance for the movement of the drive seat 310 carrying the saw blade 410. Furthermore, when the saw blade 410 is sawing, the aeration pipe 101 also supplies gas to the roots, assisting the water flow in washing the roots away from the bottom. During aeration, the gas rushes onto the obstructions on the roots, keeping them clean and preventing damage to the cutting edge of the saw blade 410 during sawing. The aeration pipe 101 not only aerates and promotes root growth, but also allows the saw blade 410 to slide on it via sleeves, forming a sliding fit. All sleeves are connected to the drive seat 310, enabling all saw blades 410 to perform synchronous sawing actions with the drive seat 310. The kinematic range of the saw blade 410 is small, only needing to cut off excess roots. The distance between the two aeration holes 103 satisfies the kinematic range of the saw blade 410. Therefore, the saw blade 410 slides on the aeration pipe 101 without obstructing or blocking the aeration holes 103 on the aeration pipe 101.

[0032] The floating hose 10 has sealing end caps 104 at both ends, and a connector 105 for connecting to an aerator is installed on one end of the sealing end cap 104. The floating hose 10 has a hollow structure and is lightweight. Under the buoyancy of the bottom floating base 210, it can float reasonably on the lake surface. The connector 105 connects to the aerator through the hose to provide gas. When gas is supplied, all aeration pipes 101 aerate the lake water through all aeration holes 103. When shearing, it assists in washing away the cut roots with the water flow. When not shearing, it supplies oxygen to the roots and cleans up flocculent matter, thus improving its functionality.

[0033] like Figure 1 , Figure 3 as well as Figure 5 As shown, the aquatic plant cultivation components 20 are at least two sets symmetrically arranged on both sides of the floating hose 10. Each set of aquatic plant cultivation components 20 on the same side consists of at least two locations, one at the front and one at the back. The aeration pipes 101 are at least two sets symmetrically arranged on both sides of the floating hose 10. Each set of aeration pipes 101 on the same side is composed of several unit pipes 106 connected to the side of the floating hose 10. Each aquatic plant cultivation component 20 has several unit pipes 106 on its bottom side. Each unit pipe 106 is near a saw blade 410 mounted on the drive seat 310. There is a gap between the two unit tubes 106 and between the two saw blades 410. In most cases, the roots grow downward along the gaps, which means that the roots are located within the sawing range of the saw blades 410 and also within the aeration range of the unit tubes 106. The roots grow to the saw blades 410. The motor is started to drive the drive pair 330, which drives the drive rod 320, which drives the drive seat 310, which drives all the saw blades 410 to cut, quickly cutting off the excess roots. The roots are located near the saw blades between the two saw blades 410, thus improving the cutting efficiency. During the sawing process, these unit tubes 106 aerate through the aeration holes 103. Since multiple aeration holes 103 are provided on the same unit tube 106, and some aeration holes 103 are opened upward relative to the floating base 210, and some aeration holes 103 face the top of the saw blade 410, part of the aerated gas acts on the root system and the other part acts on the saw blade 410. The gas acting on the root system washes away the cut roots, and the gas acting on the saw blade 410 cleans the impurities that fall on the surface during sawing. In normal state (when not sawing), these unit tubes 106 aerate through the aeration holes 103 to provide oxygen to the root system, which is beneficial to the growth of green plants.

[0034] The saw blade 410 is inclined to the unit tube 106, and the saw blade 410 and the unit tube 106 are spaced apart. Both sides of the saw blade 530 are provided with saw blades, and there is a gap between the saw blades of two adjacent saw blades 410.

[0035] like Figure 3 , Figure 4 as well as Figure 6As shown, the drive rods 320 are two separate units. One drive rod 320 is connected to one drive seat 310, and the other drive rod 320 is connected to the other drive seat 310. The linkage mechanism 30 also includes a drive pair 330 connected between the two drive rods 320 and a drive disc 340 driven by the drive pair 330. The drive pair 330 has an oblong hole 350, and the drive disc 340 has a drive eccentric shaft 360 that slides into the oblong hole 350. The drive disc 340 is connected to a motor, and the motor is fixed to the float 102 by a fixing bracket. Two guide seats are installed on the float 102, and the two drive rods 320 are slidably oriented on the two guide seats.

[0036] In this embodiment, during actual assembly, a fiber optic sensor is installed on the device. To achieve remote management, the fiber optic sensor is connected to the terminal equipment. The fiber optic sensor monitors the root growth rate in real time. When the daily growth exceeds 8cm, the cutting program is triggered. The motor starts and drives the eccentric shaft 360 to rotate relative to the oval hole 350. According to the mechanical transmission principle, the drive pair 330 will drive the two drive rods 320 to perform reciprocating linear motion. The two drive rods 320 drive the two drive seats 310 to perform reciprocating linear motion. The two drive seats 310 drive the saw blades 410 on both sides to perform reciprocating linear motion along the unit tube 106. At the same time, the excess roots growing from the gap between the two saw blades 410 to the bottom are cut off and trimmed. With the impact of water flow and the aeration effect of the unit tube 106, the cut root parts are washed away by the water flow, and the roots are far away from the silt and will not be contaminated.

[0037] The floating hose 10, aeration pipe 101, and linkage mechanism 30 are all made of corrosion-resistant HDPE plastic pipes. The cultivation tray 220 in the aquatic plant cultivation component 20 is made of HDPE cultivation basket, which is lightweight. In addition, the floating body 102 is set at the bottom of the floating hose 10 and the floating body base 210 is set at the bottom of the aquatic plant cultivation component 20, which can make the floating hose 10 and the aquatic plant cultivation component 20 float effectively on the lake surface. There is enough buoyancy to restrict other components within the water depth range.

[0038] A method for river and lake water ecological management includes the following steps:

[0039] Step s01, Plant selection: Select submerged plants such as (Vallisneria natans, Potamogeton crispus) and emergent plants such as reeds and cattails and plant them together in a 3:1 ratio in the cultivation tray 220;

[0040] Step s02, Floating Pipeline Installation: Connect the two sides of the 200mm diameter floating hose 10 to the aquatic plant cultivation component 20 with hemp rope and place it on the lake surface, maintaining a swing margin of 0.2-0.5m. Then anchor the floating hose 10. Connect anchor rods to the floating hose 10 with hemp rope, or fix the anchor rods to the wall or the floating island to ensure that the floating hose 10 will not have a large displacement on the lake surface. The connection relationship of the floating hose 10 can also ensure that the aquatic plant cultivation component 20 will not have a large displacement on the lake surface.

[0041] Step s03, Micropore Aeration Control: Gas is introduced into the floating hose 10, and pulse aeration is implemented through the aeration pipe 101, with an aeration intensity of 0.3m. 3 / (m·h), the working cycle is 15min aeration / 45min rest; using the 2-3mm microbubbles generated by aeration to form an oxide layer on the root surface;

[0042] Step s04: The root growth rate is monitored in real time by fiber optic sensors. When the daily growth is greater than 8cm, the cutting program is triggered. The linkage mechanism 30 and the root cutting module 40 are linked to complete the cutting of excess roots.

[0043] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations of the references. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.

[0044] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A river and lake water ecological management device, characterized in that, The system includes a floating hose (10), an aquatic plant cultivation component (20), a linkage mechanism (30), and a root cutting module (40). The floating hose (10) has an aeration pipe (101) on its side and a float (102) on its bottom. The aquatic plant cultivation component (20) is located near the floating hose (10) and includes a float base (210) and a cultivation tray (220) on top of the float base (210). The float base (210) flexibly connects to the floating hose (10) and floats on the river or lake surface. The aquatic plant cultivation component (20) has a through cultivation tray (220) and a float base (40). The planting hole (230) of 210) includes a drive seat (310) sleeved on the aeration pipe (101) and a drive rod (320) connected to the drive seat (310) to drive the drive seat (310) to move relative to the floating base (210). The aeration pipe (101) is located on the bottom side of the aquatic green plant cultivation component (20). The root cutting module (40) includes a saw blade (410) installed on the drive seat (310). The saw blade (410) extends to the bottom side of the cultivation tray (220). The aeration pipe (101) is parallel to the area above the saw blade (410) and has an aeration hole (103).

2. The river and lake water ecological management equipment according to claim 1, characterized in that, The floating hose (10) has sealing end caps (104) at both ends, and a connector (105) is installed on one end of the sealing end cap (104).

3. The river and lake water ecological management equipment according to claim 2, characterized in that, The aquatic plant cultivation components (20) are at least two sets symmetrically arranged on both sides of the floating hose (10). The aquatic plant cultivation components (20) on the same side are at least two sets at the front and back. The aeration pipes (101) are at least two sets symmetrically arranged on both sides of the floating hose (10). The aeration pipes (101) on the same side are composed of several unit pipes (106) connected to the side of the floating hose (10). The bottom side of each aquatic plant cultivation component (20) corresponds to several unit pipes (106). A saw blade (410) installed on the drive seat (310) is provided near each unit pipe (106).

4. The river and lake water ecological management equipment according to claim 3, characterized in that, The saw blade (410) is inclined to the unit tube (106), and the saw blade (410) and the unit tube (106) are spaced apart. Saw blades are opened on both sides of the saw blade (530), and there is a gap between the saw blades of two adjacent saw blades (410).

5. The river and lake water ecological management equipment according to claim 4, characterized in that, The unit tube (106) is a split type, and it is connected to the floating hose (10) through a rotary joint, so that the unit tube (106) can rotate.

6. The river and lake water ecological management equipment according to claim 5, characterized in that, Multiple aeration holes (103) are provided on the same unit tube (106). Some aeration holes (103) are opened upward relative to the floating base (210), and some aeration holes (103) face the top of the saw blade (410).

7. The river and lake water ecological management equipment according to claim 6, characterized in that, The drive rod (320) consists of two separate rods. One drive rod (320) is connected to a drive seat (310) on one side, and the other drive rod (320) is connected to a drive seat (310) on the other side. The linkage mechanism (30) also includes a drive pair (330) connected between the two drive rods (320) and a drive disc (340) driven by the drive pair (330). The drive pair (330) has an oblong hole (350), and the drive disc (340) has a drive eccentric shaft (360) that slides on the oblong hole (350). The drive disc (340) is connected to a motor, and the motor is fixed on the float (102).

8. The river and lake water ecological management equipment according to claim 7, characterized in that, The floating hose (10), aeration pipe (101), and linkage mechanism (30) are all made of corrosion-resistant HDPE plastic pipes, and the cultivation tray (220) in the aquatic green plant cultivation component (20) is made of HDPE cultivation basket.

9. A method for river and lake water ecological management, wherein the method is adapted to the river and lake water ecological management equipment as described in claim 3, characterized in that, Includes the following steps: Step s01, Plant selection: Select submerged plants and emergent plants and plant them together in a 3:1 ratio in a cultivation tray (220); Step s02, Floating pipe network layout: Connect the two sides of the 200mm diameter floating hose (10) to the aquatic green plant cultivation component (20) with hemp rope and put it on the lake surface, keeping a swing margin of 0.2-0.5m, and then anchor the floating hose (10); Step s03, micropore aeration control: gas is introduced into the floating hose (10), and pulse aeration is implemented through the aeration pipe (101). The aeration intensity is 0.3 m³ / (m·h), and the working cycle is 15 min of aeration and 45 min of rest. The 2-3 mm microbubbles generated by aeration are used to form an oxide layer on the root surface. Step s04: The root growth rate is monitored in real time by fiber optic sensor. When the daily growth is >8cm, the cutting program is triggered. The linkage mechanism (30) links the root cutting module (40) to cut off the excess roots.

Citation Information

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