Aquatic ecological biota community building device and method

Abstract

The application provides a water ecological biological community construction device and method, which comprises at least two suspended frame unit bodies, recesses are arranged at four corners of the suspended frame unit bodies, and an insertion column is arranged at both ends of the recess and detachably locked with the recess; the insertion column is used for connecting adjacent suspended frame unit bodies, and the combination between the multiple suspended frame unit bodies is realized through the locking of the locking part with the recess; the insertion column is used for anchoring the suspended frame unit body to the bottom of the water body; a planting base is filled in the suspended frame unit body, a planting cylinder is detachably embedded in the planting base, and aquatic plants are fixed. The insertion column with the multi-mode connection function is introduced and combined with the recess as a connecting piece, flexible switching of vertical stacking, horizontal overhead splicing and single-point rotary connection between modules is realized, technical effects that not only construct a heterogeneous three-dimensional habitat space for aquatic organisms, but also adapt to different water terrain and water flow conditions and facilitate accurate maintenance in the later period are achieved.

Description

Technical Field

[0001] This invention relates to the technical field of ecological restoration, and more specifically, to a device and method for constructing aquatic biological communities. Background Technology

[0002] With urban expansion and infrastructure construction, many natural waterways have been hardened and converted into concrete or masonry revetments. While this hardening treatment improves flood control and drainage capabilities, it lacks a buffer zone between water and land, making it unsuitable for supporting the reproduction of aquatic organisms. To restore degraded aquatic ecosystems, the engineering community widely adopts in-situ remediation technologies such as ecological floating beds and artificial aquatic plants. These technologies absorb pollutants and provide habitats for organisms by planting aquatic plants. Ecological floating beds typically use a modular structure of plastic frames with planting baskets, connected by clips or ropes to form planting areas. The plant roots absorb pollutants and provide a substrate for biological attachment. While improving the aquatic ecosystem to some extent, the following technical drawbacks remain: 1) Existing units mostly use rigid threaded connections or flexible rope bindings. Rigid connections cannot adapt to complex terrains such as undulating lakebed hills, while flexible connections are difficult to form a stable underwater three-dimensional spatial structure, causing the device to be prone to collision and displacement in the flow field; 2) Existing devices can only achieve planar expansion and cannot construct a three-dimensional ecological niche from the water surface to the silt. Emergent plants and submerged plants compete for light and nutrients in space, lacking space for benthic organisms such as snails, clams, shrimp, and crabs to inhabit; 3) Existing planting units mostly use direct burial of substrate or fixed planting baskets. Later plant replacement requires an overall retrieval device, making it difficult to achieve precise local maintenance, resulting in a high root damage rate and increasing maintenance costs with the years of operation.

[0003] Therefore, there is an urgent need for a water ecological restoration device that can achieve efficient transportation and stacking, quickly construct three-dimensional heterogeneous habitats on site, and facilitate precise maintenance in the later stages. Summary of the Invention

[0004] In view of the above problems, the purpose of this invention is to provide an apparatus and method for constructing aquatic ecological biological communities to solve at least one problem existing in the prior art.

[0005] In a first aspect, the present invention provides an aquatic ecological biological community construction device, comprising:

[0006] At least two suspended frame units, each with grooves at its four corners; a post for connecting adjacent suspended frame units; and / or, the post for anchoring the suspended frame unit to the bottom of the water body; each post has a detachable locking part at both ends; when the post connects adjacent suspended frame units, the locking parts at both ends of the post are adapted to the corresponding detachable locking parts of the grooves of the adjacent suspended frame units; the post connects adjacent suspended frame units, and the locking parts and grooves cooperate to achieve the combination of multiple suspended frame units; and / or, when the post anchors the suspended frame unit to the bottom of the water body, the locking part at one end of the post is fastened to the groove of the suspended frame unit, and the locking part at the other end is anchored in the silt at the bottom of the water body; a planting base is filled in the suspended frame unit, and a detachable planting tube is detachably embedded in the planting base, the planting tube being used to fix aquatic plants.

[0007] Furthermore, a preferred technical solution is that multiple suspended frame units cooperate with the insertion post through the groove, having at least two combination states; In the first combined state, multiple suspended frame units are stacked vertically; in the second combined state, multiple suspended frame units are spliced ​​horizontally; wherein, at least three of the suspended frame units are arranged horizontally and connected to adjacent suspended frame units through the inserts, so that the middle suspended frame unit and the suspended frame units on both sides form a height difference in the vertical direction, thereby forming an overhead cavity between adjacent suspended frame units.

[0008] Furthermore, a preferred technical solution is that when two adjacent suspended frame units are spliced ​​horizontally, a rotational connection is achieved through the insert post. The insert post is simultaneously inserted into a corresponding groove of each of the two adjacent suspended frame units, forming a rotation fulcrum for the two units, so that the two suspended frame units rotate relative to each other in the horizontal plane around the insert post and are locked at a preset included angle.

[0009] Furthermore, a preferred technical solution is that at least one of the following is provided in the elevated cavity: an artificial reef, a microbial carrier, a benthic organism nest, or a shell bed.

[0010] Furthermore, a preferred technical solution is that an overlapping member is provided on the side wall of the suspended frame unit, and adjacent suspended frame units cooperate with each other through the overlapping member to achieve lateral splicing of the suspended frame units at the same height.

[0011] Furthermore, a preferred technical solution is that the bottom of the suspended frame unit is provided with crisscrossing reinforcing ribs, and the bottom edge of the suspended frame unit is provided with a protective column extending vertically downward.

[0012] Furthermore, a preferred technical solution includes an isolation net covering the top of the suspended frame unit, with ecological channels for organisms to pass through the sides of the isolation net.

[0013] Furthermore, a preferred technical solution is that the insertion post is connected to the groove via a thread, and the extension length of the insertion post relative to the suspended frame unit can be adjusted by rotation.

[0014] Furthermore, a preferred technical solution is that the top groove and the bottom groove located at the four corners of the suspended frame unit in the same vertical direction are interconnected to form a through hole through which the insertion post can pass.

[0015] Secondly, this invention provides a method for constructing an aquatic biological community, comprising, S1. Multiple suspended frame units are vertically stacked and spliced ​​together by inserting columns; S2. Based on the topography and environmental requirements of the water area to be restored, multiple suspended frame units are horizontally spliced ​​together using the inserts to form a composite body containing an overhead cavity; or, adjacent suspended frame units cooperate with each other through their respective connecting parts to achieve horizontal splicing of the suspended frame units at the same height. S3. Connect the insertion post to the bottom groove of the suspended frame unit through the locking part at the top, and insert the insertion post into the silt at the bottom of the water body to complete the anchoring of the suspended frame unit; S4. Artificial reefs or microbial carriers are arranged in the hollow cavity, and planting tubes planted with aquatic plants are embedded in the planting base of the suspended frame unit.

[0016] This invention discloses a device and method for constructing aquatic biological communities. By introducing a combination of inserts and grooves with multi-mode connection functions as connectors, it fundamentally solves the problems of existing ecological restoration devices, such as single function, inconvenient transportation, and poor terrain adaptability. It enables flexible switching between various combination states, including vertical stacking of modules, horizontal overhead splicing, and single-point rotational connection. Furthermore, the combination of inserts and grooves forms an overhead cavity, creating a heterogeneous three-dimensional habitat space for aquatic organisms. Moreover, by adjusting the anchoring depth and connection angle of the inserts, the longitudinal height and lateral layout of the device can be adjusted, effectively adapting to different water terrains and flow conditions, achieving technical effects suitable for various application scenarios and facilitating precise maintenance in the later stages.

[0017] To achieve the foregoing and related objectives, one or more aspects of the invention include the features that will be described in detail below. The following description and accompanying drawings illustrate certain exemplary aspects of the invention. However, these aspects indicate only a few of the various ways in which the principles of the invention can be used. Furthermore, the invention is intended to encompass all such aspects and their equivalents. Attached Figure Description

[0018] Other objects and results of the invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings. In the drawings: Figure 1 This is a top view of the structure of the suspended frame unit body according to an embodiment of the present invention; Figure 2 This is a front view of the structure of the floating frame unit body according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the suspended frame unit in an embodiment of the present invention; Figure 4 This is a schematic diagram of the planting tube according to an embodiment of the present invention; Figure 5 This is a schematic diagram of multiple suspended frame units stacked vertically according to an embodiment of the present invention; Figure 6 This is a schematic diagram of multiple suspended frame units horizontally staggered and spliced ​​together according to an embodiment of the present invention; Figure 7 This is a schematic diagram of multiple suspended frame units horizontally spliced ​​at the same height according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the single-point rotational connection of multiple suspended frame units in an embodiment of the present invention; Figure 9 This is a schematic flowchart of the aquatic ecological biological community construction method according to an embodiment of the present invention.

[0019] In all the accompanying drawings, the same reference numerals indicate similar or corresponding features or functions; wherein, 1. Suspended frame unit; 2. Groove; 3. Isolation net; 4. Planting base; 5. Insert post; 6. Isolation net ribs; 7. Reinforcing ribs; 8. Protective post; 9. Planting tube; 10. Ecological channel; 11. Overlapping component. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The technical solutions in the embodiments of this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, the word "and / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0022] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, in the description of embodiments in this application, "multiple" refers to two or more.

[0023] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include the specific features, structures, or characteristics described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0024] Example 1

[0025] Figures 1-4 The present invention provides an overall description of an aquatic ecological biological community construction device; wherein, Figure 1 This is a top view of the structure of the suspended frame unit body according to an embodiment of the present invention; Figure 2 This is a front view of the structure of the floating frame unit body according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the suspended frame unit in an embodiment of the present invention; Figure 4 This is a schematic diagram of the planting tube according to an embodiment of the present invention.

[0026] The present invention provides a device for constructing aquatic biological communities, such as... Figure 1 and Figure 2 As shown, it includes at least two suspended frame units 1, and grooves 2 are provided at the four corners of the suspended frame unit 1; The insert post 5 is used to connect adjacent suspended frame units 1; and / or, the insert post 5 is used to anchor the suspended frame unit 1 to the bottom of the water body; detachable locking parts are respectively provided at both ends of the insert post 5; when the insert post 5 is used to connect adjacent suspended frame units 1, the locking parts at both ends of the insert post are respectively adapted to the locking parts of the corresponding grooves of the adjacent suspended frame units 1; the insert post 5 is used to connect adjacent suspended frame units 1, and the combination of multiple suspended frame units 1 is realized by the cooperation of the locking parts and the grooves 2; and / or, when the insert post 5 is used to anchor the suspended frame unit 1 to the bottom of the water body, the locking part at one end of the insert post 5 is fastened to the groove 2 of the suspended frame unit, and the locking part at the other end is anchored in the silt at the bottom of the water body; a planting base 4 is filled in the suspended frame unit 1, and a detachable planting tube 9 is detachably embedded in the planting base 4, the planting tube 9 being used to fix aquatic plants.

[0027] In this embodiment, the suspended frame unit 1 is a cuboid. In specific implementations, the shape of the suspended frame unit 1 is not limited to the aforementioned cuboid; it can be designed in various ways according to specific application scenarios, such as a polyhedral structure or a curved surface structure. For example, the suspended frame unit 1 can adopt a cylindrical structure, whose curved surface can reduce water flow resistance, making it suitable for river environments with high flow velocities. As another alternative implementation, the suspended frame unit 1 can adopt a hexagonal prism structure, whose multiple sides can be spliced ​​in multiple directions, making it suitable for lakes and water bodies requiring the formation of large-area ecological restoration arrays. As a further alternative implementation, the suspended frame unit 1 can adopt a gourd-like structure, which can enhance the landscape effect and is suitable for urban landscape water bodies.

[0028] Grooves 2 are provided at the four corners of the suspended frame unit 1; for example Figure 1-3 As shown, each corner has two grooves, one above the other, in the vertical direction. The two grooves can be provided independently. In specific implementations, the groove positions are not limited to the four corners; they can also be located at the midpoints of the four sides of the unit, the bottom surface, or the top surface, among other locations.

[0029] In one specific embodiment, the top and bottom grooves located at the same vertical position are interconnected, forming a through hole through which the insertion post 5 can pass. The insertion post 5 can be inserted from the top and exited from the bottom. The top groove can serve as an auxiliary fixing point to prevent the insertion post from shaking. Through the threaded connection, the length of the insertion post extending from the bottom can be precisely controlled to adapt to different mud layer thicknesses. Construction personnel can directly insert and rotate the insertion post from above without underwater operation, reducing construction difficulty. In this embodiment, the top of the groove 2 is provided with a threaded interface for connection with the insertion post 5. The insertion post 5 is a cylindrical hollow structure, and its bottom end is locked with the groove 2. The inner wall of the groove 2 is provided with a threaded or grooved structure that matches the locking part of the insertion post 5, ensuring that the insertion post 5 can be reliably locked after insertion and preventing loosening under the action of water flow. In specific implementation, the insertion post anchoring structure of the present invention is not limited to the threaded surface, and can also adopt various forms such as barbs, spiral blades, expansion heads, and suction cups.

[0030] The planting substrate 4, filled within the suspended frame unit 1, provides the aquatic plants with the necessary nutrients and support for growth, and also serves as a carrier for microbial attachment, forming a symbiotic system between plants and microorganisms. In specific implementations, the composition of the planting substrate 4 can be diversified according to the target water quality, plant species, and environmental conditions. For example, the planting substrate 4 is made by uniformly mixing sawdust, cottonseed hulls, rice hulls, rice bran powder, and sterile soil in a mass ratio of 1:1:1:1. For example, the planting substrate 4 can use inorganic materials, including but not limited to one or more mixtures of ceramsite, zeolite, vermiculite, and perlite. For instance, the planting substrate 4 can be an organic and inorganic composite matrix, such as mixing organic materials like sawdust and rice hulls with inorganic materials like ceramsite and zeolite in a certain proportion. As an extended implementation, slow-release fertilizer or coated fertilizer can be added to the planting substrate 4 to provide long-term nutrients for the aquatic plants, reducing the maintenance work of subsequent topdressing. Furthermore, slow-release microbial agents, including but not limited to nitrifying bacteria, denitrifying bacteria, phosphorus-removing bacteria, and photosynthetic bacteria, can be mixed into the planting substrate 4. These microorganisms, through the porous structure of the planting substrate 4, come into contact with the water, decompose organic matter, convert ammonia nitrogen, improve the substrate environment, and form a synergistic purification system with the plant roots.

[0031] like Figure 4As shown, a planting tube 9 is detachably embedded within the planting base 4. The planting tube 9 is used to fix the roots of aquatic plants, facilitating later transplanting and maintenance. In practice, the planting tube can be cylindrical, conical, or square. The planting tubes 9 are evenly distributed within the suspended frame unit 1, and their density can be adjusted according to the plant species and target coverage. Multiple permeable holes are provided in the wall of the planting tube 9 to facilitate the exchange of water and nutrients. The permeable holes can be designed as side wall openings, bottom openings, or mesh openings, as needed. The planting tube 9 is fixed within the planting base 4 by embedding or suspension. The planting tube can be made of high-density polyethylene (HDPE) or polypropylene (PP), etc. During individual modular disassembly and maintenance, the root system is protected from damage during removal. Specifically, when plants age or die, the planting tube 9 can be removed entirely and replaced with a pre-cultivated new planting tube for rapid replanting. Different plant species can be replaced according to seasonal changes or water quality improvement, constructing a year-round, highly efficient aquatic plant purification system. When the planting substrate 4 is depleted of nutrients or becomes compacted, the planting tube 9 can be removed and the planting substrate 4 inside the tube replaced without disturbing the entire suspended frame unit 1.

[0032] like Figure 2 The suspended frame unit 1 is encased in an isolation net 3, which prevents large fish and other harmful predators from entering the device and protects the plants and roots inside from being chewed. The isolation net 3 has ecological channels 10 with a diameter of approximately 30mm on its side. The diameter of the openings can be adjusted according to different usage scenarios to allow animals of different sizes to enter. The ecological channels also facilitate the replenishment of juvenile organisms such as snails and shellfish, renewing the ecosystem and maintaining ecological stability. The multi-level pores of the isolation net 3 and its reinforcing ribs 6 allow small fish and other inhabitants to freely enter and exit, while preventing large fish from entering and consuming the roots, and filtering out some large impurities to maintain ecological operation. The porous structure of the reinforcing ribs 6 optimizes water flow, preventing stagnant water areas from forming within the suspended cavity and ensuring the dissolved oxygen supply necessary for shrimp and crab survival. Simultaneously, the plankton carried by the water flow can serve as natural food for shrimp and crabs. The reinforcing ribs 6 are designed with an interlaced mesh, forming a miniature shelter and reducing the risk of benthic organisms being carried away by the water flow.

[0033] like Figure 1 and Figure 2 The suspended frame unit 1 is 1000mm long, 600mm wide, and 100mm high. It is a cuboid frame made of high-density corrosion-resistant material, which can maintain high strength and durability under water flow impact.

[0034] like Figure 4As shown, the bottom of the suspended frame unit 1 is provided with crisscrossing reinforcing ribs 7, and the bottom edge of the suspended frame unit 1 is provided with vertically downward extending protective columns 8. The crisscrossing reinforcing ribs 7 at the bottom are used to improve the structural strength and bending resistance of the suspended frame unit 1. The protective columns 8 are vertically distributed at the edge of the suspended frame unit 1, and together with the reinforcing ribs 7, they enhance the overall strength and stability of the device, preventing damage under severe weather or water flow impact.

[0035] like Figure 1 and Figure 3 The sidewalls of the suspended frame unit are also provided with overlapping members. Adjacent suspended frame units cooperate with each other through these overlapping members to achieve lateral splicing of the suspended frame units at the same height. Specifically, the four corners of the suspended frame unit 1 are respectively provided with grooves 2, and the overlapping members are symmetrically arranged on the opposite sidewalls of the suspended frame unit 1, with 1-4 overlapping members on each side. In this embodiment, the overlapping member is a T-shaped connector 11, and the quantity is 1. In specific implementation, the overlapping member can also be a dovetail joint, elastic buckle, pin-type joint, etc. In areas with large waves, the overlapping member can also be made of a material with a certain degree of flexibility. That is to say, the T-shaped connector 11 is provided on the sidewall of the suspended frame unit 1 and is integrally formed with the suspended frame unit 1 or fixedly connected by fasteners. The T-shaped connector 11 has a T-shaped structure, including a laterally extending overlapping arm and a longitudinally extending connecting base. The thickness is equivalent to the thickness of the sidewall of the suspended frame unit 1 to ensure sufficient connection strength. As an improvement to this embodiment, the upper and lower surfaces of the lap arm can be provided with anti-slip textures or positioning protrusions to increase the friction and positioning accuracy when adjacent joints are lapped.

[0036] Figures 5-8 The overall combination state of the multiple suspended frame units of the present invention is described. Among them, Figure 5 This is a schematic diagram of multiple suspended frame units stacked vertically according to an embodiment of the present invention; Figure 6 This is a schematic diagram of multiple suspended frame units horizontally staggered and spliced ​​together according to an embodiment of the present invention; Figure 7 This is a schematic diagram of multiple suspended frame units horizontally spliced ​​at the same height according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the single-point rotational connection of multiple suspended frame units in an embodiment of the present invention.

[0037] Example 2

[0038] like Figure 5As shown, three suspended frame units 1 are arranged in a first combined state through the cooperation of grooves 2 and inserts 5, with the three suspended frame units stacked vertically. Specifically, the bottom locking part of the insert 5 is locked and fixed to the top groove of the lower suspended frame unit 1, and the top locking part of the insert 5 is locked and fixed to the bottom groove of the upper suspended frame unit 1, thus forming a stable transport unit. Vertical stacking through grooves 2 and inserts 5 can greatly reduce space occupation and save transportation costs. At the same time, preferably, since the top and bottom grooves located in the same vertical position are interconnected, the insert 5 can completely pass through multiple units to form an integral locking structure, preventing relative displacement during transportation.

[0039] Example 3

[0040] The suspended frame unit structure of Example 1 was applied to a landscape lake scene in an urban park. Three sets of horizontally connected suspended frame units 1 were scientifically planned and arranged 1.5 meters along the lake shore, based on the shoreline direction and water flow characteristics. For example... Figure 6 As shown, three suspended frame units 1 are arranged in a second configuration through the cooperation of grooves 2 and inserts 5, with the three suspended frame units horizontally spliced ​​together. At least three of the suspended frame units are arranged horizontally and connected to adjacent suspended frame units via the inserts. Specifically, the inserts 5 connect the bottom groove of the middle suspended frame unit 1 to the top grooves of the two side suspended frame units 1, creating a height difference in the vertical direction between the middle and side suspended frame units, thus forming an elevated cavity between adjacent suspended frame units. This forms a continuous and stable ecological buffer zone. It ensures that each suspended frame unit is tightly connected without loosening or gaps, guaranteeing the overall structural stability and effectively resisting the impact of lake water fluctuations and disturbances from boats. In specific implementation, at least one of the following is provided in the elevated cavity: artificial reef, microbial carrier, benthic organism nest, or shell bed.

[0041] When the application scenario of this embodiment is in the Jiangsu Dazha Lake breeding base, the ecological channel 10 opened on the side of the isolation net 3 can lead to the overhead cavity. The ecological channel of the side isolation net 3 can be expanded to about 35mm for Yangcheng Lake hairy crabs to enter and exit on their own, and co-cultivate and co-grow with aquatic plants such as rice, realizing ecological mixed farming technology.

[0042] When the application scenario of this embodiment is in the hardened section of a rural irrigation canal, the elevated cavity can be equipped with a guide plate on the reinforcing rib 7 at the bottom of the suspended frame. Artificial reefs, microbial carriers or benthic organism nests can also be suspended in the elevated cavity to optimize the water flow path and reduce local siltation. At the same time, it provides a three-dimensional space and habitat for fish migration and invertebrate habitat, and maintains the balance of the ecosystem.

[0043] Example 4

[0044] Figure 7This is a schematic diagram of multiple suspended frame units joined together by T-joints in Embodiment 1 of the present invention. As shown, three suspended frame units 1 are arranged laterally, and adjacent units are connected to each other by T-joints 11 on the side walls to form a continuous planar structure. This connection method does not form an overhead cavity, allowing the device to be closer to the bottom of the water body and is suitable for flat terrain. The figure also shows that the inserts 5 pass through the grooves 2 at the four corners of the suspended frame unit 1 and are inserted into the silt to complete the anchoring of the device. When using T-joints 11 for planar joining, since there is no need to form an overhead cavity, all inserts 5 can be used for anchoring, allowing the device to fit more tightly to the bottom of the water body and enhancing its resistance to water flow impact. Figure 7 As shown, two adjacent suspended frame units 1 are joined together by their respective T-joints 11 to achieve a horizontal splicing at the same height. Specifically, the overlapping arm of the T-joint 11 on the right side wall of the first suspended frame unit 1 is staggered with the overlapping arm of the T-joint 11 on the left side wall of the second suspended frame unit 1. Positioning protrusions and positioning grooves can be provided between the two overlapping arms to ensure accurate overlapping position. As an improvement in this embodiment, after the overlapping is completed, the two T-joints 11 can be locked and fixed by fasteners such as connecting pins, bolts, or clips passing through the pre-set connecting holes on the overlapping arms.

[0045] Example 5

[0046] like Figure 8 As shown, three suspended frame units 1 are connected by grooves 2 and posts 5. When two adjacent suspended frame units are horizontally spliced, they are rotatably connected by one of the posts. The post passes through a corresponding groove in each of the two adjacent suspended frame units, forming a fulcrum for their rotation. This allows the two suspended frame units to rotate relative to each other in the horizontal plane around the post and lock at a preset angle. By selecting grooves at different corners for connection, different directions of turning can be achieved. The post 5 is connected to the groove 2 by threads. After rotating to the desired angle, tightening the post 5 locks the angle. Preferably, the maximum adjustable angle is about 30 degrees, which is sufficient to adapt to the turning requirements of most winding river channels. This connection method can be used to bypass obstacles such as bridge piers and boulders in the water, or to adapt to the natural meandering direction of the river channel, achieving a biomimetic arrangement.

[0047] By flexibly switching between the above various combined states, the device of the present invention achieves dual-function switching during transportation and use: such as Figure 5 The vertical stacking arrangement shown is used for transportation, reducing space occupation and saving transportation costs; for example... Figure 6 The staggered, horizontally connected layers shown create a heterogeneous elevated layer that can adapt to different lakebed topography, providing diverse habitats for aquatic organisms; for example... Figure 8 The single-point rotation connection shown can flexibly bypass obstacles and adapt to winding river channels; for example... Figure 7 The T-joint planar splicing shown allows the device to better conform to flat terrain, and all posts can be used for anchoring, enhancing stability. In practical engineering applications, the above four combinations can be used in combination according to specific terrain and environmental requirements. For example, T-joint planar splicing can be used in straight sections of the river, single-point rotational connection can be used in curved sections, and elevated splicing can be used in areas where deep-water habitats need to be constructed, forming a highly adaptable and functionally diverse ecological restoration system.

[0048] In the specific implementation process, the species and density of organisms are dynamically adjusted according to the degree of water pollution. Specifically, when the water is severely eutrophic, the proportion of snails and microbial communities in the planting substrate 4 can be increased; when bottom sediment restoration is the primary goal, shellfish and shrimp / crabs are preferentially introduced through the ecological channels 10 of the isolation net 3; when the density of cultured organisms is high, the number of plants planted is appropriately reduced, and the arrangement density of the planting tubes 9 is optimized according to the zoning intervals of the reinforcing ribs 7 to avoid excessive competition. A zoning strategy is adopted to address the ecological niche differences of different benthic organisms: snails and shellfish have different diets and can be arranged in different areas of the planting substrate 4; shrimp and crabs need sufficient hiding space within the elevated cavity to prevent cannibalism and attacks during molting. A dedicated biological module is designed and quickly assembled to the main device via inserts 5 and grooves 2, enabling customized functionality. For example, it integrates a shell bed and pebble layer to provide attachment and habitat substrates for snails and shellfish; a multi-layered, detachable structure provides hiding places and climbing surfaces; and a suspended biological carrier, filled with highly efficient biodegradable bacteria, is suspended from the reinforcing ribs 7 at the bottom of the suspended frame unit 1. A floating-leaved plant planting area is set at the top of the device, embedded in the planting base 4 of the suspended frame unit 1 via planting tubes 9. The floating-leaved plant leaves covering the water surface reduce light intensity, inhibit algal photosynthesis, and provide shade for shrimp and crabs, forming a three-dimensional ecological niche structure of upper floating-leaved plants, middle emergent / submerged plants, lower benthic organisms, and a microbial film in the suspended cavity, significantly improving the ecological restoration efficiency per unit water volume.

[0049] Figure 9 This diagram illustrates a flowchart of a method for constructing an aquatic biological community according to the present invention. Figure 9 As shown, the present invention provides a method for constructing an aquatic ecological biological community, comprising the following steps.

[0050] S1. Multiple suspended frame units 1 are vertically stacked and spliced ​​together using insert posts 5.

[0051] S2. Based on the topography and environmental requirements of the water area to be restored, multiple suspended frame units 1 are horizontally spliced ​​together by the insert post 5 to form a combination containing an overhead cavity; or, adjacent suspended frame units 1 cooperate with each other through their respective connecting parts 11 to achieve horizontal splicing of the suspended frame units 1 at the same height.

[0052] S3. Connect the insertion post 5 to the bottom groove 2 of the suspended frame unit 1 through the locking part at the top, and insert the insertion post 5 into the silt at the bottom of the water body to complete the anchoring of the suspended frame unit 1.

[0053] S4. Artificial reefs or microbial carriers are arranged in the suspended cavity, and planting tubes planted with aquatic plants are embedded in the planting base 4 of the suspended frame unit 1.

[0054] Example 6

[0055] The application scenario is the treatment of effluent from goldfish aquaculture ponds in the Minhou Goldfish Industrial Park in Fuzhou. Water quality monitoring revealed the following problems in the ponds: Water pollution: Ammonia nitrogen concentration in the effluent reached 5.5 mg / L (11 times the Class V limit of 2.0 mg / L in the "Surface Water Environmental Quality Standard"), and phosphate concentration was 1.2 mg / L, leading to severe eutrophication and periodic algal blooms; Sludge deterioration: Long-term feeding and the deposition of fish metabolic products resulted in a large accumulation of organic matter in the sludge, which became black and sticky, and released toxic gases such as hydrogen sulfide; Impact on aquaculture: Deteriorating water quality led to an increased infection rate in the goldfish's gills, lighter body color, and a mortality rate of up to 25% for fry, severely impacting aquaculture efficiency.

[0056] To address the above problems, the aquatic ecological biological community construction device of the present invention is used for treatment, as detailed below: The aquatic plant selected for planting in planting tube 9 is Vallisneria natans. Vallisneria natans is tolerant of low light, and its slender, soft leaves are not easily eaten by goldfish. It has a well-developed root system that can effectively absorb ammonia nitrogen and phosphate in the silt. It has a strong ability to produce oxygen through photosynthesis, which can form an underwater plant oxygen pump to provide goldfish with sufficient dissolved oxygen. The dense leaves can provide hiding places for goldfish and reduce stress response.

[0057] Nitrifying bacteria inoculant, bamboo charcoal granules, ceramsite, and humus substrate are mixed in a specific ratio. The nitrifying bacteria inoculant enhances the nitrification of ammonia nitrogen, resolving the issue of excessive ammonia nitrogen in the effluent. Bamboo charcoal has strong adsorption properties, adsorbing odorous substances such as hydrogen sulfide and algal toxins produced by algal metabolism. Ceramsite forms gaps between particles, increasing substrate permeability, promoting oxygen penetration into the sludge, and improving the anaerobic environment of the sludge.

[0058] The seedlings of Vallisneria natans are fixed inside the planting tube 9 and evenly embedded in the planting base 4. Before transportation, multiple suspended frame units 1 are vertically stacked using the locking structure of the insert 5 and the groove 2 (e.g., Figure 5 As shown in the figure, a single truck can carry 50 units, significantly reducing transportation costs.

[0059] Upon arrival at the site, based on the topography of the pond bottom, three sets of suspended frames were arranged in a ring shape 1.2m along the inner side of the pond embankment. Each set consisted of five standard units horizontally spliced ​​together via inserts 5 and grooves 2, covering a total area of ​​15% of the pond's total area. During installation, the splicing angle was adjusted using the threaded interface at the top of inserts 5 (maximum adjustment angle 30 degrees), successfully bypassing obstacles such as the aerator base in the pond (e.g., Figure 8 As shown), to achieve a tightly fitted horizontal staggered splicing (such as... Figure 6 As shown in the figure, a continuous ecological buffer zone is formed.

[0060] Ecological channels 10, each 30mm in diameter, are created on the side of the isolation net 3. Four channels are set in each frame, evenly distributed on both sides of the suspended frame. The edges of the channels are wrapped with soft sponge material to prevent goldfish from scratching their scales as they pass through. The isolation net 3 and its reinforcing ribs 6 are made of corrosion-resistant PVC material, forming a multi-level porous structure. This structure not only prevents goldfish from nibbling on plant roots but also ensures the free exchange of microorganisms and nutrients in the water.

[0061] Within the horizontally staggered, elevated cavity, a bundle of fiber brushes is suspended every 50cm to enrich microorganisms, accelerate the decomposition of organic matter, and solve the problem of blackened and smelly sludge. A 5cm thick layer of crushed seashells is laid at the bottom of the cavity to slowly release calcium and magnesium ions, regulate water hardness, and promote healthy growth of goldfish scales.

[0062] The protective columns 8, which are vertically distributed along the edge of the suspended frame, are equipped with reinforcing ribs 7 inside to enhance the overall structural strength of the device and effectively prevent displacement or overturning under the impact of goldfish swimming.

[0063] In this embodiment, every quarter, a portion of the suspended frame unit is disassembled via the modular connection system of groove 2 and insertion post 5 to clean impurities deposited in the elevated cavity, preventing blockages that could affect water flow. Aged plants such as *Vallisneria natans* and *Ceratophyllum demersum* are replaced quarterly. During replacement, the original root system within the planting tube 9 is preserved, and new seedlings are planted in the same tube to ensure rapid establishment and shorten the ecological recovery period. Every spring, the top 10cm of the planting substrate is replaced with a new mixed substrate to replenish nutrients and maintain microbial activity. Monthly, 5-10 snails and 2-3 freshwater mussels are added to the device through the ecological channel 10, utilizing their filter-feeding algae characteristics to control algae density and prevent eutrophication rebound. Based on weekly water quality monitoring results, compound microbial agents are added as needed to ensure stable water purification capacity. Weekly checks are performed on the isolation net 3 for damage and the connection between insertion post 5 and groove 2 for looseness, with timely repair or replacement of damaged components.

[0064] After six months of operation, the water quality test results of the polluted river before operation are shown in Table 1. As can be seen from Table 1, ammonia nitrogen concentration decreased to below 0.108 mg / L (removal rate above 85%), phosphate concentration decreased to below 0.1 mg / L, water transparency increased from less than 0.3 m to 1.2 m, and the frequency of algal blooms decreased by 90%. The organic matter content of the silt decreased, and the hydrogen sulfide odor disappeared. The ecological restoration effect is significant.

[0065] Table 1 Comparison of water quality test results before operation of black and odorous rivers

[0066] However, those skilled in the art should understand that various modifications can be made to the aquatic biological community construction method proposed in this invention without departing from the scope of the invention. Therefore, the scope of protection of this invention should be determined by the appended claims.

Claims

1. A device for constructing aquatic ecological biological communities, characterized in that, include: At least two suspended frame units, with grooves provided at the four corners of the suspended frame units; The insert is used to connect adjacent floating frame units; And / or, the insert is used to anchor the suspended frame unit to the bottom of the water body; A detachable locking part is provided at each end of the insertion post; When the insert is used to connect adjacent suspended frame units, the locking parts at both ends of the insert are respectively adapted to the corresponding grooves of the adjacent suspended frame units. The combination of multiple suspended frame units is achieved by the cooperation between the locking parts and the grooves. When the insert is used to anchor the suspended frame unit to the bottom of the water body, the locking part at one end of the insert is fastened to the groove of the suspended frame unit, and the locking part at the other end is anchored in the silt at the bottom of the water body. The suspended frame unit is filled with a planting base, and a detachable planting tube is embedded in the planting base for fixing aquatic plants.

2. The aquatic ecological biological community construction device according to claim 1, characterized in that, Multiple suspended frame units engage with the insertion post through the groove, having at least two combination states; In the first combined state, multiple suspended frame units are stacked vertically; in the second combined state, multiple suspended frame units are spliced ​​horizontally; wherein, at least three of the suspended frame units are arranged horizontally and connected to adjacent suspended frame units through the inserts, so that the middle suspended frame unit and the suspended frame units on both sides form a height difference in the vertical direction, thereby forming an overhead cavity between adjacent suspended frame units.

3. The aquatic ecological biological community construction device according to claim 2, characterized in that, When two adjacent suspended frame units are spliced ​​horizontally, they are rotatably connected by the insert post. The insert post is simultaneously inserted into a corresponding groove of each of the two adjacent suspended frame units, forming a rotation fulcrum for the two units. This allows the two suspended frame units to rotate relative to each other in the horizontal plane around the insert post and lock at a preset included angle.

4. The aquatic ecological biological community construction device according to claim 2, characterized in that, The suspended cavity contains at least one of the following: artificial reef, microbial carrier, benthic organism nest, or shell bed.

5. The aquatic ecological biological community construction device according to claim 1, characterized in that, The side wall of the suspended frame unit is also provided with an overlap member. Adjacent suspended frame units cooperate with each other through the overlap member to achieve horizontal splicing of the suspended frame units at the same height.

6. The aquatic ecological biological community construction device according to claim 1, characterized in that, The bottom of the suspended frame unit is provided with crisscrossing reinforcing ribs, and the bottom edge of the suspended frame unit is provided with a protective column extending vertically downward.

7. The aquatic ecological biological community construction device according to claim 1, characterized in that, It also includes an isolation net covering the top of the suspended frame unit, with ecological passages for organisms to pass through on the sides of the isolation net.

8. The aquatic ecological biological community construction device according to any one of claims 1 to 7, characterized in that, The insertion post is connected to the groove via a thread, and the extension length of the insertion post relative to the suspended frame unit can be adjusted by rotation.

9. The aquatic ecological biological community construction device according to claim 8, characterized in that, The top and bottom grooves located at the four corners of the suspended frame unit are interconnected in the same vertical direction, forming a through hole through which the insertion post can pass.

10. A method for constructing an aquatic ecological biological community, characterized in that, include, S1. Multiple suspended frame units are vertically stacked and spliced ​​together by inserting columns; S2. Based on the topography and environmental requirements of the water area to be restored, multiple suspended frame units are horizontally spliced ​​together using the inserts to form a composite body containing an overhead cavity; or, adjacent suspended frame units cooperate with each other through their respective connecting parts to achieve horizontal splicing of the suspended frame units at the same height. S3. Connect the insertion post to the bottom groove of the suspended frame unit through the locking part at the top, and insert the insertion post into the silt at the bottom of the water body to complete the anchoring of the suspended frame unit; S4. Artificial reefs or microbial carriers are arranged in the hollow cavity, and planting tubes planted with aquatic plants are embedded in the planting base of the suspended frame unit.

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