A test device for soil carbon interface environment research

Abstract

The utility model relates to soil carbon interfacial test technical field discloses a kind of for soil carbon interfacial environment research test device, including culture structure, stratification structure and push structure, stratification structure and push structure are respectively installed on culture structure, stratification structure includes isolation plate, first runner, fixed strip and second runner, nylon screen interlayer is provided at the top of isolation plate, first slider and second slider are fixedly installed respectively at the both sides of isolation plate, second slider is fixedly installed threaded seat on, threaded seat is screw mounted screw rod, first slider and first runner are slidably connected, second slider and second runner are slidably connected, fixed strip is fixedly installed on inner wall, a plurality of limit hole matched with screw rod are provided on fixed strip.The utility model is stratum structure by being set, ensure three layers of soil boundary clear, while guaranteeing moisture, gas and soluble material natural diffusion to simulate real soil environment, effectively prevent soil mixing.

Description

Technical Field

[0001] This utility model relates to the field of soil carbon space testing technology, and in particular to a testing device for soil carbon space environment research. Background Technology

[0002] In recent years, biochar has been widely used in farmland, forest land, and remediation sites as a multifunctional material for enhancing soil carbon sequestration, improving soil structure, and passivating pollutants. After biochar is applied to the soil, a unique "charosphere" is formed on its surface and within its pores. This area is usually only a few millimeters to a centimeter thick, but it exhibits significantly different characteristics from the original soil in terms of nutrient turnover, microbial community succession, and pollutant behavior.

[0003] However, most existing research methods involve mixing biochar with soil and then cultivating it in pots or bags. This makes it impossible to accurately distinguish the microscale gradient of "bicarbonate layer - near-bicarbonate layer - far-bicarbonate layer" in the vertical direction. At the same time, traditional sampling requires destructive excavation, which makes it impossible to continuously observe the same treatment and is susceptible to cross-contamination from adjacent soil layers. Utility Model Content

[0004] Given that most existing research methods involve mixing biochar with soil and then cultivating it in pots or bags, they cannot accurately distinguish the microscale gradient of "bicarbonate layer - near-bicarbonate layer - far-bicarbonate layer" in the vertical direction. At the same time, traditional sampling requires destructive excavation, which makes it impossible to continuously observe the same treatment and is prone to cross-contamination by adjacent soil layers. Therefore, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an experimental device for soil carbonatal environment research, comprising a cultivation structure, a layered structure, and a pushing structure, wherein the layered structure and the pushing structure are respectively installed on the cultivation structure, the layered structure includes an isolation plate, a first sliding groove, a fixing strip, and a second sliding groove, a nylon mesh partition is provided on the top of the isolation plate, a first slider and a second slider are respectively fixedly installed on both sides of the isolation plate, a threaded seat is fixedly installed on the second slider, and a screw is threadedly installed on the threaded seat, the first sliding groove and the second sliding groove are respectively provided on the inner wall, the first slider and the first sliding groove are slidably connected, the second slider and the second sliding groove are slidably connected, the fixing strip is fixedly installed on the inner wall, and the fixing strip is provided with a plurality of limiting holes adapted to the screw.

[0006] As a preferred embodiment of the experimental device for soil carbonatal environment research described in this utility model, the culture structure includes a culture box and a box cover. The culture box has symmetrically fixed inner walls, which divide the culture box into a first cavity and a second cavity. There are two second cavities, and millimeter scales are provided on the inner walls on both sides of the first cavity.

[0007] As a preferred embodiment of the experimental device for soil carbonatal environment research described in this utility model, the layered structure includes an isolation plate, a first chute, a fixing strip, and a second chute. The isolation plate is disposed inside the first cavity, and the number of isolation plates is set to two, dividing the first cavity into three layers.

[0008] As a preferred embodiment of the experimental device for soil carbonaceous environment research described in this utility model, the first slider is located on both sides of the side wall of the isolation plate, and the second slider is located in the middle of the side wall of the isolation plate.

[0009] As a preferred embodiment of the experimental device for soil carbonatal environment research described in this utility model, the pushing structure includes a multi-stage electric push rod, a push plate and a sealing plate. The multi-stage electric push rod is fixedly installed on the side wall of the incubator, and an installation plate is fixedly installed on the telescopic end of the multi-stage electric push rod. The installation plate is provided with installation holes.

[0010] As a preferred embodiment of the experimental device for soil carbonatal environment research described in this utility model, the push plate is detachably connected to the mounting plate by screws and mounting holes, the incubator is provided with a through groove corresponding to the push plate on the side away from the multi-stage electric push rod, and the sealing plate is detachably installed on the through groove.

[0011] The beneficial effects of this utility model are:

[0012] 1. Through the layered structure, the position of the isolation plate can be flexibly adjusted by the sliding cooperation of the first slider and the first groove, and the second slider and the second groove. Combined with the millimeter scale on the inner wall, precise positioning can be achieved. Then, it is firmly fixed by the threaded connection of the screw and the upper limit hole of the fixing bar, ensuring that the boundaries of the three soil layers are clear. At the same time, the nylon mesh partition at the top of the isolation plate ensures the natural diffusion of water, gas and soluble substances to simulate the real soil environment, while effectively preventing soil mixing. It provides a stable and independent cultivation space for soil layers with different carbonaceous distances, laying a precise stratification foundation for subsequent research on the differences in soil characteristics of each layer.

[0013] 2. Through the set push structure, the multi-stage electric push rod can drive the push plate to smoothly push the soil in the first cavity, so that the layered soil can be completely pushed out of the through groove, avoiding the disturbance and damage to the soil layer that may be caused by manual sampling, ensuring the original layered state of the sample. In addition, the push plate is detachably connected to the mounting plate by screws, which makes it easy to replace the appropriate push plate according to the needs, improving the flexibility and reliability of the sampling operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the culture structure of this utility model;

[0017] Figure 3 This is a cross-sectional schematic diagram of the incubator of this utility model;

[0018] Figure 4 This is a schematic diagram of the inner wall of the present invention;

[0019] Figure 5 This is a schematic diagram of the isolation plate of this utility model;

[0020] Figure 6 This is a schematic diagram of the push plate of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Cultivation structure; 11. Incubator; 12. Lid; 13. Inner wall; 14. First cavity; 15. Second cavity; 2. Layered structure; 21. Isolation plate; 22. First slider; 23. Second slider; 24. Threaded seat; 25. Screw; 26. First groove; 27. Fixing strip; 28. Second groove; 29. ​​Limiting hole; 3. Pushing structure; 31. Multi-stage electric push rod; 32. Mounting plate; 33. Mounting hole; 34. Push plate; 35. Sealing plate. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Example

[0025] Refer to attached figure Figure 1 - Appendix Figure 6This invention provides an experimental device for studying the carbonaceous environment of soil, comprising a culture structure 1, a layered structure 2, and a pushing structure 3. The layered structure 2 and the pushing structure 3 are respectively installed on the culture structure 1. The culture structure 1 includes a culture box 11 and a box cover 12. The culture box 11 has symmetrically fixed inner walls 13, which divide the culture box 11 into a first cavity 14 and a second cavity 15. There are two second cavities 15. On both sides of the first cavity 14, the inner wall 13 is provided with millimeter scales (not shown in the figure).

[0026] The layered structure 2 includes a partition plate 21, a first sliding groove 26, a fixing strip 27, and a second sliding groove 28. The partition plate 21 is disposed inside the first cavity 14. Two partition plates 21 are provided, dividing the first cavity 14 into three layers. A nylon mesh layer is provided on the top of the partition plate 21 to allow natural diffusion of moisture, gas, and soluble substances, while preventing soil from passing through. A first slider 22 and a second slider 23 are fixedly installed on both sides of the partition plate 21, respectively. The first slider 22 is located on both sides of the sidewall of the partition plate 21, and the second slider 23 is located in the middle of the sidewall of the partition plate 21. A threaded seat 24 is fixedly installed, and a screw 25 is threaded onto the threaded seat 24. A first sliding groove 26 and a second sliding groove 28 are respectively provided on the inner wall 13. A first slider 22 extends into the first sliding groove 26 and is slidably connected to the first sliding groove 26. A second slider 23 extends through the second sliding groove 28 into the second cavity 15 and is slidably connected to the second sliding groove 28. A fixing strip 27 is fixedly installed on the inner wall 13 and is located inside the second cavity 15. The fixing strip 27 is provided with a plurality of limiting holes 29 that are adapted to the screw 25.

[0027] The pushing structure 3 includes a multi-stage electric push rod 31, a push plate 34, and a sealing plate 35. The multi-stage electric push rod 31 is fixedly installed on the side wall of the incubator 11. The telescopic end of the multi-stage electric push rod 31 is fixedly installed with a mounting plate 32. The mounting plate 32 is provided with mounting holes 33. The push plate 34 is detachably connected to the mounting plate 32 through screws and mounting holes 33. The side of the incubator 11 away from the multi-stage electric push rod 31 is provided with a through groove corresponding to the push plate 34. The sealing plate 35 is detachably installed on the through groove.

[0028] During use, the isolation plate 21 is installed in the first cavity 14. The position of the isolation plate 21 is adjusted by the sliding cooperation of the first slider 22 and the first groove 26, and the second slider 23 and the second groove 28. The isolation plate 21 is fixed by the threaded connection of the screw 25 and the upper limit hole 29 of the fixing strip 27. Soil is filled into all three layers, and then biochar is placed in the top layer of soil. The incubator 11 is sealed by the lid 12 and then incubated. The layers are from top to bottom: the biochar layer, the near biochar layer, and the far biochar layer. The nylon mesh layer at the top of the isolation plate 21 ensures the natural diffusion of moisture, gas and soluble substances while preventing soil mixing. After the incubation is completed, the sealing plate 35 is removed from the through groove. The multi-stage electric push rod 31 is activated to push the push plate 34 to remove the layered soil sample from the through groove.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An experimental apparatus for studying the carbonaceous environment of soil, characterized in that: The system includes a culture structure (1), a layered structure (2), and a pushing structure (3). The layered structure (2) and the pushing structure (3) are respectively installed on the culture structure (1). The layered structure (2) includes a partition plate (21), a first sliding groove (26), a fixing strip (27), and a second sliding groove (28). A nylon mesh partition is provided on the top of the partition plate (21). A first slider (22) and a second slider (23) are respectively fixedly installed on both sides of the partition plate (21). The second slider (23) is fixed with a... A fixed installation threaded seat (24) is provided, on which a screw (25) is threadedly installed. The first slide groove (26) and the second slide groove (28) are respectively provided on the inner wall (13). The first slider (22) and the first slide groove (26) are slidably connected. The second slider (23) and the second slide groove (28) are slidably connected. The fixing strip (27) is fixedly installed on the inner wall (13). The fixing strip (27) is provided with a plurality of limiting holes (29) that are adapted to the screw (25).

2. The experimental apparatus for studying the soil carbonaceous environment according to claim 1, characterized in that: The culture structure (1) includes a culture box (11) and a box cover (12). The culture box (11) is symmetrically fixed with an inner wall (13). The culture box (11) is divided into a first cavity (14) and a second cavity (15) by the inner wall (13). There are two second cavities (15). On both sides of the first cavity (14), the inner wall (13) is provided with millimeter scales.

3. The experimental apparatus for soil carbonaceous environment research according to claim 2, characterized in that: The layered structure (2) includes an isolation plate (21), a first slide groove (26), a fixing strip (27), and a second slide groove (28). The isolation plate (21) is disposed inside the first cavity (14), and the number of isolation plates (21) is set to two, dividing the first cavity (14) into three layers.

4. The experimental apparatus for soil carbonaceous environment research according to claim 3, characterized in that: The first slider (22) is located on both sides of the side wall of the isolation plate (21), and the second slider (23) is located in the middle of the side wall of the isolation plate (21).

5. The experimental apparatus for studying the soil carbonaceous environment according to claim 1, characterized in that: The pushing structure (3) includes a multi-stage electric push rod (31), a push plate (34) and a sealing plate (35). The multi-stage electric push rod (31) is fixedly installed on the side wall of the incubator (11). The telescopic end of the multi-stage electric push rod (31) is fixedly installed with a mounting plate (32). The mounting plate (32) is provided with mounting holes (33).

6. The experimental apparatus for soil carbonaceous environment research according to claim 5, characterized in that: The push plate (34) is detachably connected to the mounting plate (32) via screws and mounting holes (33). The incubator (11) has a through groove corresponding to the push plate (34) on the side away from the multi-stage electric push rod (31). The sealing plate (35) is detachably installed on the through groove.

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