Experimental incubator for wetland soil seed bank

Abstract

The utility model discloses a wetland soil seed bank experiment incubator, and belongs to the technical field of wetland research. The simple flowerpot culture device solves the problems that according to an existing simple flowerpot culture device, the water level is inconvenient to adjust, the experiment stability is easily affected by tight arrangement of flowerpots, and a bottom support is difficult to clean. Comprising a top separation device, an incubator body and a base frame which are sequentially stacked from top to bottom, the incubator body is of a cubic structure, the interior of the incubator body is divided into a plurality of culture units through a plurality of first partition plates, and at least one water level gauge is vertically arranged on the side wall of each culture unit; the top separation device is of a cubic structure, and a plurality of separation units in one-to-one correspondence with the lower culture units are arranged in the top separation device. The device is simple in structure, high in operability, economical and practical. And the unit space utilization rate is effectively improved. The hydrological condition in the experiment process can be flexibly monitored and controlled.

Description

Technical Field

[0001] The utility model relates to an experimental incubator for wetland soil seed bank, belonging to the technical field of wetland research. Background Technique

[0002] The experiment of wetland soil seed bank aims to systematically collect, analyze and study the seed species, density and its ecological functions in wetland soil. Through the seed bank experiment, the composition and distribution of seeds in the wetland ecosystem can be deeply understood, the biodiversity can be evaluated, and scientific basis and decision-making support can be provided for the protection, restoration and management of the wetland ecosystem. The incubator for wetland soil seed bank is an important device for studying the seed resources and ecological functions of the wetland ecosystem, and its effective operation and scientific management are the keys to promoting wetland ecological protection and restoration.

[0003] At present, the experiment of wetland soil seed bank mainly uses a simple flowerpot culture device, which consists of a simple flowerpot and a water bottom tray. Although it has the characteristics of quick use, it is difficult to meet higher experimental requirements. First, the water level adjustment is inconvenient. Wetland plants have different water requirements, and it is difficult for the simple flowerpot culture device to control and adjust the water level, thus affecting the reliability of the experimental results. Second, the close arrangement of flowerpots makes it easy to be affected by adjacent experiments during the experiment, increasing the experimental error of the soil seed bank experiment and affecting the stability of the experiment. In order to eliminate this influence, the prior art generally adjusts the distance between flowerpots to be farther, but this will lead to a larger floor area. In addition, the traditional bottom tray has the problem of difficult cleaning. During the long-term experiment, the soil of the flowerpot flows into the bottom tray device, and the long-term water storage of the water bottom tray causes problems such as the growth of water bacteria and algae, affecting the experimental water quality and the consistency of experimental conditions. Therefore, there is an urgent need to design a new experimental incubator for wetland soil seed bank and a scientific operation method to solve these problems and improve the reliability, stability and condition consistency of the soil seed bank experiment. Summary of the Invention

[0004] The utility model is to solve the above technical problems, and further provides an experimental incubator for wetland soil seed bank.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A wetland soil seed bank experimental incubator, comprising a top partition device, an incubator main body and a base frame which are stacked in sequence from top to bottom, wherein the incubator main body is of a cube structure and is internally divided into a plurality of culture units by a number of first partitions. At least one water level scale is vertically arranged on the side wall of each culture unit. A first water passing hole is opened at the bottom of the first partition between every two adjacent culture units. A water receiving bottom tray is horizontally inserted in the base frame. A second water passing hole communicating with the water receiving bottom tray is opened at the bottom of each culture unit. A rubber plug is plugged in each water passing hole. The top partition device is of a cube structure and a plurality of partition units corresponding to the lower culture units one by one are arranged inside it. The upper and lower ends of each partition unit and the upper end of each culture unit are open ends.

[0007] Further, the incubator main body includes a first bottom plate and four first peripheral plates. The four first peripheral plates are connected end to end in a mortise and tenon joint to form a rectangular frame structure. A first rectangular ring groove is machined on the upper surface of the first bottom plate. The bottoms of the four first peripheral plates are respectively and fittingly inserted into the first rectangular ring groove. A number of second water passing holes are all opened on the first bottom plate.

[0008] Further, each second water passing hole is located at a right-angle corner at the bottom of its corresponding culture unit.

[0009] Further, a number of first partitions include a number of horizontal first partitions and a number of vertical first partitions. The left and right ends of the horizontal first partitions are respectively and correspondingly connected to two relatively arranged first peripheral plates in a mortise and tenon joint. The left and right ends of the vertical first partitions are respectively and correspondingly connected to the other two relatively arranged first peripheral plates in a mortise and tenon joint.

[0010] Further, a number of downward-opening first card slots are machined on the horizontal first partitions along their lengths. A number of upward-opening second card slots are machined on the vertical first partitions along their lengths. The number of first card slots and the number of second card slots are correspondingly and cross-connected one by one, dividing the inside of the incubator main body into a number of culture units in a grid pattern.

[0011] Further, the first water passing holes are correspondingly opened at the bottoms of the first partitions where they are located and are arranged at the corners of their adjacent culture units.

[0012] Further, the top partition device includes four second peripheral plates and a number of second partitions. The four second peripheral plates are connected end to end in a mortise and tenon joint to form a rectangular frame structure. The number of cross-arranged second partitions divides the rectangular frame structure formed by the four second peripheral plates into a number of partition units.

[0013] Further, a limiting groove is machined on the top of each first partition along its length. A number of second partitions are correspondingly inserted into the tops of the number of first partitions.

[0014] Furthermore, the water storage bottom support includes a second bottom plate and four third peripheral plates. The four third peripheral plates are tenon-mortise connected end to end in sequence to form a rectangular frame structure. A second rectangular ring groove is machined on the upper surface of the second bottom plate, and the bottoms of the four third peripheral plates are all fitted and inserted into the second rectangular ring groove.

[0015] Furthermore, the base frame includes a detachable top support frame, a bottom support frame and a plurality of connecting pieces. The top support frame is a rectangular frame structure and its single-side cross section is L-shaped. The bottom support frame is a U-shaped frame structure and its single-side cross section is L-shaped. The plurality of connecting pieces are arranged along the outer side of the bottom support frame and fixedly connect the top support frame and the bottom support frame through the plurality of connecting pieces.

[0016] The present invention has the following effects compared with the prior art:

[0017] First, the structure of the utility model is simple, the operability is strong, and it is economical and practical. The assembly and use are of low difficulty, and it can be disassembled and recycled after use, and is suitable for the research and experiments of various wetland soil seed banks.

[0018] Second, the incubator of the utility model takes into account the experimental scale and experimental efficiency. By arranging a plurality of independent culture units in the incubator, placing the culture pots filled with soil samples into the corresponding culture units, and then by adding a top partition device, while achieving a compact structure, it avoids mutual influence between two adjacent culture pots. Compared with the current method of preventing mutual influence between two adjacent culture pots by increasing the distance between the two culture pots, the incubator of the utility model effectively improves the utilization rate of unit space. It enables the space cost to be reduced by up to 60% under the same experimental sample size, and is suitable for large-scale wetland soil seed bank experiments. The integrated experimental module plays a key role in improving the experimental efficiency and effectively reduces the input of labor and time costs during the experiment.

[0019] Third, the utility model can flexibly monitor and control the hydrological conditions during the experiment. It can realize independent water level adjustment for a plurality of independent culture units, and can also control the on-off of a plurality of first water through holes to conduct hydrological connection between the culture units when needed, effectively improving the experimental efficiency. The incubator of the utility model can also simulate hydrological conditions such as hydrological fluctuations and water-salt interactions, and can cope with various experimental conditions, and is suitable for soil seed bank experiments under different hydrological conditions and saline-alkali conditions.

[0020] Fourth, the top partition device of the utility model effectively reduces the experimental error caused by exogenous seed transmission in the wetland soil seed bank experiment and effectively isolates different experimental areas. The top partition device also has the characteristics of being easy to disassemble and wear-resistant, which is convenient for cleaning and maintenance, prolongs the service life of the device, and is suitable for long-term and complex experimental requirements.

[0021] 5. The incubator of the present utility model can reduce the variation of experimental conditions. The second through-hole and the water tray are conducive to timely cleaning of the lost soil in the culture basin, ensuring the consistency of water storage capacity. At the same time, it also avoids problems such as water quality change, bacteria and algae growth caused by long-term water accumulation, ensuring the consistency of experimental conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic perspective view of the experimental incubator for wetland soil seed bank of the present utility model;

[0023] Figure 2 It is a top view schematic diagram of the first bottom plate;

[0024] Figure 3 It is a front view schematic diagram of the first outer plate;

[0025] Figure 4 It is a top view schematic diagram of the first outer plate;

[0026] Figure 5 It is a front view schematic diagram of the first transverse partition;

[0027] Figure 6 It is a side view schematic diagram of the first transverse partition;

[0028] Figure 7 It is a front view schematic diagram of the first longitudinal partition;

[0029] Figure 8 It is a top view schematic diagram of the second bottom plate;

[0030] Figure 9 It is a front view schematic diagram of the third outer plate;

[0031] Figure 10 It is a top view schematic diagram of the third outer plate.

[0032] In the figure:

[0033] 1. Top partition device; 11. Partition unit; 2. Incubator main body; 21. Culture unit; 22. Water level scale; 23. First water through-hole; 24. Second water through-hole; 25. First bottom plate; 25-1. First rectangular ring groove; 26. First outer plate; 26-1. First tenon; 26-2. First mortise; 26-3. Second mortise; 27. First transverse partition; 27-1. First card slot; 28. First longitudinal partition; 28-1. Second card slot; 29. Limit groove; 3. Base frame; 31. Top support frame; 32. Bottom support frame; 33. Connecting piece; 4. Water bottom tray; 41. Second bottom plate; 41-1. Second rectangular ring groove; 42. Third outer plate; 42-1. Third tenon; 42-2. Third mortise. Detailed implementation mode

[0034] Detailed implementation mode 1: In combination with Figures 1 to 10 This detailed implementation mode is described. The technical solutions in the implementation modes of the present utility model are clearly and completely described. Obviously, the described implementation modes are only a part of the implementation modes of the present utility model, rather than all the implementation modes. Based on the implementation modes in the present utility model, all other implementation modes obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

[0035] It should be noted that the descriptions of directions such as "front", "rear", "left", "right", "inside", "outside", "left side", "right side", "upper part", "lower part", "top", "bottom", etc. in the present utility model are all defined based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the described structure must be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, "a plurality of" means more than two, unless otherwise clearly and specifically defined.

[0036] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0037] A wetland soil seed bank experimental incubator includes a top partition device 1, an incubator main body 2, and a base frame 3 stacked in sequence from top to bottom. The incubator main body 2 is a cube structure and is internally divided into a plurality of culture units 21 by a number of first partitions. At least one water level scale 22 is vertically arranged on the side wall of each culture unit 21. A first water passing hole 23 is opened at the bottom of the first partition between every two adjacent culture units 21. A water receiving bottom tray 4 is horizontally inserted into the base frame 3. A second water passing hole 24 communicating with the water receiving bottom tray 4 is opened at the bottom of each culture unit 21. A rubber plug is inserted into each water passing hole. The top partition device 1 is a cube structure and a plurality of partition units 11 corresponding to the lower culture units 21 one by one are arranged inside it. The upper and lower ends of each partition unit 11 and the upper end of each culture unit 21 are open ends.

[0038] Cultivation pots filled with soil samples are respectively rotated in each culture unit 21,

[0039] The first water through holes 23 are blocked by rubber stoppers, enabling each culture unit 21 to perform relatively independent water level regulation. Also, the rubber stoppers in one or more of the first water through holes 23 can be pulled out when needed to achieve hydrological connection between the culture units 21, effectively improving the experimental efficiency.

[0040] By providing the second water through holes 24 and the water storage bottom tray, the lost soil in the culture pots can be cleaned in a timely manner to ensure consistent water storage capacity. At the same time, problems such as water quality change, bacteria and algae growth caused by long-term water accumulation are avoided, ensuring the consistency of experimental conditions.

[0041] By providing the water level scale 22, it is convenient to read the water level in each culture unit 21. The water level scale 22 can be an independent scale pasted on the first partition, or can be engraved on the first partition.

[0042] By the partition unit 11, the experimental data between adjacent culture pots are prevented from influencing each other. At the same time, the upper and lower ends of each partition unit 11 and the upper end of each culture unit 21 are all open ends, that is, each partition unit 11 and the corresponding culture unit 21 below it are vertically connected, so that each partition unit 11 is correspondingly connected to the external space through the partition unit 11 above it, enabling operations such as watering without disassembling the top partition device 1 and the incubator main body 2.

[0043] In the present utility model, the sealing performance between the connection structures can be achieved by adding sealing rubber strips or the like.

[0044] The incubator main body 2 includes a first bottom plate 25 and four first peripheral plates 26. The four first peripheral plates 26 are connected end to end in a mortise and tenon joint to form a rectangular frame structure. A first rectangular ring groove 25-1 is machined on the upper surface of the first bottom plate 25, and the bottoms of the four first peripheral plates 26 are all inserted and fitted in the first rectangular ring groove 25-1. A plurality of second water through holes 24 are all opened on the first bottom plate 25.

[0045] With such a design, the first bottom plate 25 and the four first peripheral plates 26 can all be assembled and disassembled according to actual needs. The connection method between the first peripheral plate 26 and the first bottom plate 25 is equivalent to a simple mortise and tenon joint. Using the mortise and tenon joint can achieve rapid assembly and disassembly of the structure of the incubator main body 2, while facilitating cleaning and maintenance, further extending the service life of the structure, and being more suitable for long-term and complex experimental requirements.

[0046] The mortise and tenon joints in the present utility model can be realized through various mortise and tenon structures, preferably the simplest mortise and tenon structure, that is, a tenon is processed on one structural member using mortise and tenon joints, and a mortise or mortise groove is processed on the other structural member, and the tenon is inserted into the mortise or mortise groove to realize the mortise and tenon connection between the two structural members. Example: A first strip-shaped convex rib or a first protrusion is processed at one end in the length direction of the first outer plate 26 as the first tenon 26-1, and a first mortise groove 26-2 or a first mortise that cooperates with the first tenon 26-1 of the adjacent first outer plate 26 is processed at one end of the side surface of the first outer plate 26 facing the inside of the incubator main body 2 and away from the first tenon 26-1. The mortise and tenon connection method using the first strip-shaped convex rib and the first mortise groove 26-2 can achieve a better anti-leakage effect.

[0047] Each second water passing hole 24 is located at a right-angle corner at the bottom of the corresponding culture unit 21. Designed in this way, it is convenient to adjust the water level in each culture unit 21 according to actual needs. Since the second water passing hole 24 is at the right-angle corner and does not interfere with the culture basin in the culture unit 21, when it is necessary to adjust the water level in the culture unit 21 or drain the water in the culture unit 21, the rubber plug can be conveniently blocked or pulled out without taking out or moving the culture basin.

[0048] The several first partition plates include several transverse first partition plates 27 and several longitudinal first partition plates 28. The left and right ends of the transverse first partition plates 27 are correspondingly connected to two relatively arranged first outer plates 26 by mortise and tenon joints, and the left and right ends of the longitudinal first partition plates 28 are correspondingly connected to another two relatively arranged first outer plates 26 by mortise and tenon joints. Designed in this way, for example: Several second mortise grooves 26-3 or second mortises are processed on the side surface of each first outer plate 26 facing the inside of the incubator main body 2, preferably the second mortise grooves 26-3 are processed. In this way, the left and right ends of the several first partition plates are correspondingly inserted into the second mortise grooves 26-3. When second mortises are processed on the first outer plate 26, second protrusions need to be processed at the left and right ends of the correspondingly connected first partition plates as second tenons for connection. The water level scale 22 is preferably arranged on several transverse first partition plates 27, and specifically can be arranged at the corner of the corresponding culture unit 21 to avoid interfering with the culture basin and affecting the reading. For clearer reading, the water level scale 22 can be symmetrically or staggeredly arranged on both side surfaces of the transverse first partition plate 27, so that each culture unit 21 uses its own water level scale 22.

[0049] On the first transverse partition 27, a number of first card slots 27-1 with openings downward are machined along its length direction. On the first longitudinal partition 28, a number of second card slots 28-1 with openings upward are machined along its length direction. The number of first card slots 27-1 and the number of second card slots 28-1 are cross-connected in one-to-one correspondence, dividing the interior of the incubator main body 2 into a number of culture units 21 in a grid pattern. With such a design, the first transverse partition 27 and the first longitudinal partition 28 are cross-connected through the first card slots 27-1 and the second card slots 28-1, and can be assembled and disassembled conveniently and quickly according to needs.

[0050] The first water through hole 23 is correspondingly opened at the bottom of the first partition where it is located and is arranged at the corner of its adjacent culture unit 21. With such a design, it is avoided that the first water through hole 23 interferes with the culture pots in the culture unit 21, ensuring the smooth hydrographic regulation between adjacent culture units 21.

[0051] The top partition device 1 includes four second outer plates and a number of second partitions. The four second outer plates are connected end to end in a mortise and tenon joint to form a rectangular frame structure. The rectangular frame structure formed by the four second outer plates is divided into a number of partition units 11 by the cross-arranged second partitions. With such a design, the cross-arrangement method of the second partitions is the same as that of the first partitions, both are cross-connected, which is convenient for disassembly and assembly.

[0052] On the top of each first partition, a limiting groove 29 is machined along its length direction. A number of second partitions are correspondingly inserted on the tops of the first partitions. With such a design, the connection between the top partition device 1 and the incubator main body 2 is realized, preventing the top partition device 1 from having a lateral displacement.

[0053] The water storage bottom tray 4 includes a second bottom plate 41 and four third outer plates 42. The four third outer plates 42 are connected end to end in a mortise and tenon joint to form a rectangular frame structure. On the upper surface of the second bottom plate 41, a second rectangular ring groove 41-1 is machined. The bottoms of the four third outer plates 42 are all inserted and fitted in the second rectangular ring groove 41-1. With such a design, the second bottom plate 41 and the four third outer plates 42 can all be assembled and disassembled according to actual needs. The connection method between the third outer plate 42 and the second bottom plate 41 is the same as the connection method between the first bottom plate 25 and the first outer plate 26 in the incubator main body 2. Preferably, at one end of the length direction of the third outer plate 42, a third tenon 42-1 is machined. On one side surface of the third outer plate 42 facing the inside of the water storage bottom tray 4, a third mortise groove 42-2 or a third mortise eye for cooperating with the third tenon 42-1 of the adjacent third outer plate 42 is machined at one end away from the third tenon 42-1.

[0054] The base frame 3 includes a top support frame 31, a bottom support frame 32 and a number of connecting pieces 33 that are detachably connected. The top support frame 31 is a rectangular frame structure with an L-shaped cross-section on one side, and the bottom support frame 32 is a U-shaped frame structure with an L-shaped cross-section on one side. A number of connecting pieces 33 are arranged along the outside of the bottom support frame 32, and the top support frame 31 and the bottom support frame 32 are fixedly connected through the number of connecting pieces 33. With such a design, the cross-sections on one side of both the top support frame 31 and the bottom support frame 32 are L-shaped to achieve the support of the incubator main body 2 and the water holding bottom tray 4. The water holding bottom tray 4 is horizontally inserted between the top support frame 31 and the bottom support frame 32, and the U-shaped opening of the bottom support frame 32 serves as the entrance and exit for the water holding bottom tray 4 to be pulled out and pushed into the base frame 3. The top support frame 31 is formed by splicing four L-shaped plates, and the bottom support frame 32 is formed by splicing three L-shaped plates. Adjacent two L-shaped plates can be connected by screws for easy disassembly. The connecting pieces 33 can be connected to the top support frame 31 and the bottom support frame 32 by screws respectively, which is convenient for disassembly.

[0055] Incubator assembly method:

[0056] First, assemble the incubator main body 2:

[0057] Place the first bottom plate 25 horizontally, tenon and mortise splice the four first peripheral plates 26 end to end in sequence, then insert the surrounded first peripheral plates 26 into the first rectangular ring groove 25-1 on the first bottom plate 25, and then cross-connect a number of transverse first partition plates 27 and a number of longitudinal first partition plates 28. Taking two transverse first partition plates 27 and two longitudinal first partition plates 28 as an example, arrange the two transverse first partition plates 27 and the two longitudinal first partition plates 28 in a cross shape like a well, and the incubator main body 2 can be divided into a nine-square grid shape;

[0058] Then, assemble the base frame 3:

[0059] Assemble the top support frame 31, and lock the four corner joints of the four L-shaped plates by screws or bolts. Assemble the bottom support frame 32 in the same way, and then fix the top support frame 31 and the bottom support frame 32 through a number of connecting pieces 33 and screws to complete the assembly of the base frame 3;

[0060] Next, assemble the water holding bottom tray 4:

[0061] Place the second bottom plate 41 horizontally, tenon and mortise splice the four third peripheral plates 42 end to end in sequence, and then insert the surrounded third peripheral plates 42 into the second rectangular ring groove 41-1 on the second bottom plate 41 to form a cubic water holding bottom tray 4 with an open top;

[0062] Finally, assemble the top partition device 1:

[0063] The splicing method of the four second peripheral plates and several second partition plates is the same as that of the four first peripheral plates 26 and several first partition plates.

[0064] The above assembly sequence can be adjusted arbitrarily according to the convenience of actual operation.

[0065] Actual application method of the incubator:

[0066] Place the incubator main body 2 on the base frame 3, put the culture pots containing soil samples into the respective culture units 21 of the incubator main body 2, completely block all the first water holes 23 and the second water holes 24 with rubber plugs, then install the top partition device 1, and then put the water tray into the base frame 3, water and store water according to the water requirements. During the experiment or after the experiment is completed, the rubber plug in the second water hole 24 can be pulled out, and the waste water is discharged through the second water hole 24 into the bottom water tray 4, and then the bottom water tray 4 is taken out from the base frame 3.

[0067] After the entire incubator is used in the experiment, it can be disassembled, stored and recycled.

[0068] In the present utility model, the culture pot placed in the culture unit 21 is a conventional culture pot, as long as it can achieve conventional water permeability. Whether to water in the culture pot or in the culture unit 21 is specifically determined according to the culture requirements.

[0069] Taking the number of culture units 21 as 9 as an example, according to the experimental conditions, three hydrological gradients need to be set, with three replicates for each gradient. Then, a total of six first water holes 23 on the two transverse first partition plates 27 and nine second water holes 24 on the first bottom plate 25 can be completely blocked with rubber plugs, and the six first water holes 23 on the two longitudinal first partition plates 28 can be opened to maintain hydrological connection, so as to achieve three hydrological gradients, with three replicates for each gradient.

[0070] I. The structure of the present utility model is simple, with strong operability. The cost of a single incubator is about 50 yuan, which is economical and practical. The incubator main body 2 uses experimental-grade high molecular polypropylene plates, with high bending strength, durable, capable of withstanding the acid-base environment with pH 2 - 14, water absorption less than 0.1%, and having excellent waterproof and anti-permeation functions. The material has low density, is lightweight and easy to use, has low assembly and use difficulty, can be disassembled and recycled after use, and is suitable for the research and experiments of various wetland soil seed banks.

[0071] 2. The incubator of the utility model takes into account both the scale and efficiency of the experiment. By arranging a number of independent culture units 21 in the incubator, placing the culture pots containing soil samples in the corresponding culture units 21, and then installing a top partition device 1, a compact structure is achieved while avoiding mutual influence between two adjacent culture pots. Compared with the current method of preventing mutual influence between two adjacent culture pots by increasing the distance between the two culture pots, the incubator of the utility model effectively improves the unit space utilization rate. With the same experimental sample size, the space cost can be reduced by up to 60%, which is suitable for large-scale wetland soil seed bank experiments. The integrated experimental module plays a key role in improving experimental efficiency and effectively reduces the manpower and time cost investment in the experimental process.

[0072] 3. The utility model can realize flexible monitoring and control of the hydrological conditions during the experiment, can realize independent water level adjustment of multiple independent culture units 21, and can also control the opening and closing of a plurality of first water holes 23 to achieve hydrological connectivity between the culture units 21 when necessary, effectively improving the experimental efficiency. The incubator of the utility model can also simulate hydrological conditions such as hydrological fluctuations and water-salt interactions, can cope with a variety of experimental conditions, and is suitable for soil seed bank experiments under different hydrological conditions and saline-alkali conditions.

[0073] 4. The top partition device 1 of the utility model effectively reduces the experimental error caused by exogenous seed propagation in the wetland soil seed bank experiment. The top partition device 1 adopts a high-light-grade PMMA polymer organic glass plate with a light transmittance of more than 92%, which can effectively isolate different experimental areas while maintaining light transmittance. The top partition device 1 is also easy to disassemble and wear-resistant, which is convenient for cleaning and maintenance, prolongs the service life of the device, and is suitable for long-term and complex experimental needs.

[0074] 5. The incubator of the utility model can reduce the changes in experimental conditions. The second through hole and the water tray are conducive to timely cleaning of the lost soil in the culture pot, ensuring the consistency of the water storage volume. At the same time, it also avoids the problems of water quality changes, bacteria and algae breeding caused by long-term accumulation of water, thereby ensuring the consistency of experimental conditions.

[0075] The wetland soil seed bank experiment using the incubator of the utility model has achieved remarkable results: the experimental completion rate reached 100%. During the experiment, 60% of the space cost and 30% of the labor cost were successfully saved, saving a total of 5,800 yuan. The experimental results met the expected assumptions and showed significant advantages: the isolation rate of exogenous seed pollution reached 100%, the impact of water pollution was reduced by 100%, and the reliability of the experimental results was improved by 50%. After the experiment was completed, the incubator was cleaned, disassembled and stored, and it was reused the following year, which greatly saved the cost of experimental consumables.

[0076] Embodiment 2: In combination with Figures 1 to 10 This embodiment is described. Regarding the structural composition:

[0077] The first outer plate, the first bottom plate, the first transverse partition, and the first longitudinal partition: all have the characteristics of light weight, a density of 0.9 g / cm 3 , a flexural strength greater than 40 MPa, strong acid and alkali resistance, can be used normally within the range of pH 2 - 14, and an experimental-grade polymer polypropylene plate with a water absorption of less than 0.1%.

[0078] The top support frame, the bottom support frame, and several connecting pieces: have a corrosion-resistant zinc coating thickness of 240 g / m 2 , a tensile strength of 450 MPa, a yield strength of 350 MPa, and a high-strength corrosion-resistant industrial galvanized steel with a hardness of HB280.

[0079] The water storage bottom tray: has the characteristics of light weight, a density of 0.9 g / cm 3 , a flexural strength greater than 40 MPa, strong acid and alkali resistance, can be used normally within the range of pH 2 - 14, and an experimental-grade polymer polypropylene plate with a water absorption of less than 0.1%.

[0080] The top partition device: selects a high-gloss PMMA polymer organic glass plate with a light transmittance of more than 92%.

[0081] The aperture of each through hole is 2 cm to 3 cm, and the diameter of the rubber plug used to block each through hole is 2 cm to 3 cm. The other compositions and connection relationships are the same as those in Embodiment 1.

[0082] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A wetland soil seed bank experimental incubator, characterized in that: The invention comprises a top partition device (1), a culture box body (2) and a base frame (3) which are stacked in sequence from top to bottom, wherein the culture box body (2) is a cubic structure and is internally divided into a plurality of culture units (21) by a plurality of first partitions, each culture unit (21) is provided with at least one water level gauge (22) vertically on the side wall, a first water hole (23) is provided at the bottom of the first partition between each two adjacent culture units (21), a water-containing bottom bracket (4) is transversely inserted into the base frame (3), a second water hole (24) communicating with the water-containing bottom bracket (4) is provided at the bottom of each culture unit (21), and a rubber plug is plugged in each water hole, the top partition device (1) is a cubic structure and is internally arranged with a plurality of partition units (11) corresponding to the culture units (21) below, the upper and lower ends of each partition unit (11) and the upper end of each culture unit (21) are open ends.

2. A wetland soil seed bank experimental incubator according to claim 1, characterized in that: The incubator body (2) comprises a first bottom plate (25) and four first peripheral plates (26); the four first peripheral plates (26) are connected end to end by mortise and tenon joints to form a rectangular frame structure; a first rectangular annular groove (25-1) is processed on the upper surface of the first bottom plate (25); the bottoms of the four first peripheral plates (26) are all inserted into the first rectangular annular groove (25-1); and a plurality of second water holes (24) are all provided on the first bottom plate (25).

3. The wetland soil seed bank experimental incubator according to claim 1, characterized in that: Each second water-through hole (24) is located at a right-angle corner at the bottom of the culture unit (21) where it is located.

4. A wetland soil seed bank experimental incubator according to claim 2, characterized in that: The plurality of first partitions include a plurality of transverse first partitions (27) and a plurality of longitudinal first partitions (28), the left and right ends of the transverse first partitions (27) correspondingly being connected to two oppositely arranged first outer peripheral plates (26) by mortise and tenon joints, and the left and right ends of the longitudinal first partitions (28) correspondingly being connected to another two oppositely arranged first outer peripheral plates (26) by mortise and tenon joints.

5. A wetland soil seed bank experimental incubator according to claim 4, characterized in that: The first transverse partition (27) is formed with a plurality of first slots (27-1) opening downward along its length direction, and the first longitudinal partition (28) is formed with a plurality of second slots (28-1) opening upward along its length direction. The plurality of first slots (27-1) and the plurality of second slots (28-1) are cross-connected in a one-to-one correspondence, thereby dividing the interior of the incubator body (2) into a plurality of incubation units (21) in a grid-like manner.

6. The wetland soil seed bank experimental incubator according to claim 1, characterized in that: The first water through hole (23) is correspondingly opened at the bottom of the first partition plate where it is located and is located at the corner of the adjacent culture unit (21).

7. The wetland soil seed bank experimental incubator according to claim 1, characterized in that: The top partition device (1) comprises four second outer panels and a plurality of second partitions, wherein the four second outer panels are connected end to end by mortise and tenon joints to form a rectangular frame structure, and the plurality of second partitions arranged crosswise divide the rectangular frame structure formed by the four second outer panels into a plurality of partition units (11).

8. The wetland soil seed bank experimental incubator according to claim 7, characterized in that: A limiting groove (29) is processed on the top of each first partition plate along its length direction, and a plurality of second partition plates are correspondingly plugged into the tops of a plurality of first partition plates.

9. The wetland soil seed bank experimental incubator according to claim 1, characterized in that: The water-containing bottom bracket (4) comprises a second bottom plate (41) and four third peripheral plates (42); the four third peripheral plates (42) are connected end to end by mortise and tenon joints to form a rectangular frame structure; a second rectangular annular groove (41-1) is processed on the upper surface of the second bottom plate (41); the bottoms of the four third peripheral plates (42) are all inserted into the second rectangular annular groove (41-1).

10. The wetland soil seed bank experimental incubator according to claim 1, characterized in that: The base frame (3) comprises a detachably connected top support frame (31), a bottom support frame (32), and a plurality of connecting pieces (33), wherein the top support frame (31) is a rectangular frame structure and its single-side cross-section is L-shaped, the bottom support frame (32) is a U-shaped frame structure and its single-side cross-section is L-shaped, and the plurality of connecting pieces (33) are arranged along the outer side of the bottom support frame (32) and the top support frame (31) and the bottom support frame (32) are fixedly connected via the plurality of connecting pieces (33).

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