Coastal wetland soil nitrogen pollution monitoring experiment device based on convenient material changing

Abstract

The utility model discloses a coastal wetland soil nitrogen pollution monitoring experiment device based on convenient reloading, which comprises a device main body, a bed rock is arranged at the bottom of the device main body, and a fluorescent lamp, a controller and a monitor are arranged on the device main body. A first planting area, a second planting area, a third planting area and a fourth planting area are arranged on one side of the bottom of the device main body, sampling ports are formed in the bottoms of the planting areas, and the nitrogen loss conditions of mangrove plants in different real natural environments are discussed by continuously simulating a coastal wetland construction system through rapid material changing; the method has the characteristics of convenience in sampling, easiness in analysis of experimental results, low cost and the like; the device integrates functions of tide, sea wave and the like; physical and chemical properties of soil and seawater can be directly displayed on a controller panel, semi-automatic control of an experiment can be realized through an operation process preset in the controller, and time and energy consumption of experimenters is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of nitrogen loss in coastal wetlands, and in particular relates to a soil nitrogen pollution monitoring experimental device for coastal wetlands based on convenient material replacement. Background Art

[0002] As a unique and high-yield wetland ecosystem, coastal wetlands are of great significance in terms of windbreak and sand fixation, ecosystem purification, and biodiversity maintenance. Therefore, they are known as "undersea forests" and "kidneys of the earth". In recent years, coastal cities have widely chosen bay estuaries as sewage discharge sites, resulting in significant changes in the nitrogen content of coastal wetlands near the coast. Nitrogen plays an important role in biological composition and can also be used as a reference for the nutrient level of coastal wetlands. Coastal wetlands are located at the junction of land and sea, with rapid and active element cycles and material transformations, and are considered to be sources, sinks, and converters of nitrogen. Changes in nitrogen content will have an important impact on the life activities of mangrove plants, and thus affect the nearby ecological environment. This device establishes a coastal wetland ecological simulation system in the laboratory to explore how to more realistically simulate the dynamic changes in nitrogen content when coastal wetlands receive sewage in the laboratory. At present, there are few ecological simulation and nitrogen content detection devices for mangrove plants. The existing coastal wetland ecological simulation devices have relatively single functions, and there are deficiencies such as difficulty in changing materials, lack of tidal simulation devices, and time-consuming and laborious sampling and analysis. Utility Model Content

[0003] The utility model aims to provide a coastal wetland soil nitrogen pollution monitoring experimental device based on convenient material replacement to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coastal wetland soil nitrogen pollution monitoring experimental device based on convenient material replacement, comprising a device body, a bedrock is arranged at the bottom of the device body, a fluorescent lamp, a controller and a monitor are arranged on the device body, a first planting area, a second planting area, a third planting area and a fourth planting area are arranged on one side of the bottom of the device body and a sampling port is arranged at the bottom, an integrated sensor 2 is arranged at the bottom of the other side of the device body and a graphene heating plate and a semiconductor cooling plate are arranged on the top;

[0005] A first water inlet and outlet system and a second water inlet and outlet system are respectively arranged on both sides of the device body.

[0006] Preferably, the water inlet and outlet system 1 comprises a water pipe connected to the device body, a water storage tank is provided at one end of the water pipe, and a flow meter, a water pump and a valve 1 are provided on the water pipe.

[0007] Preferably, an integrated sensor is provided inside the water storage tank, and one end of the water pipe extends into the side of the device body close to the second planting area and is placed above the second planting area.

[0008] Preferably, the second water inlet and outlet system includes a connecting water pipe, one end of which is provided with a second water storage tank, a flow meter, a second water pump and a valve are provided on the connecting water pipe, and the inside of the second water storage tank is provided with one end of the connecting water pipe extending into the inside of the device body away from the second planting area.

[0009] Preferably, a wave maker and a wind tube are provided on the side of the device body close to the connection water pipe.

[0010] The technical effects and advantages of the utility model are as follows: the coastal wetland construction system is simulated continuously through rapid material replacement to explore the nitrogen loss of mangrove plants under different realistic natural environments; it has the characteristics of convenient sampling, easy analysis of experimental results, and low cost; the device simulates functions such as tides and waves in one; the physical and chemical properties of soil and seawater can be directly displayed on the controller panel, and semi-automatic control of the experiment can be achieved through the operation process preset in the controller, reducing the time and energy consumption of experimenters. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a top view of the utility model;

[0012] Figure 2 It is a schematic diagram of the structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the soil sampler of the utility model.

[0014] In the figure: 1. water storage tank; 2. integrated sensor 1; 3. flow meter; 4. water pump; 5. valve 1; 6. controller; 7. fluorescent lamp; 8. monitor; 9. graphene heating plate; 10. semiconductor refrigeration plate; 11. first planting area; 12. sampling port; 13. device body; 14. air duct; 15. wave maker; 16. valve; 17. seawater collection container; 18. water storage tank 2; 19. water inlet; 21. bedrock; 22. integrated sensor 2; 23. connecting water pipe; 24. water pipe; 25. second planting area; 26. flow meter; 27. water pump; 28. valve; 29. ​​third planting area; 30. fourth planting area. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] The utility model provides a coastal wetland soil nitrogen pollution monitoring experimental device based on convenient material replacement as shown in the figure, including a device body 13, a bedrock 21 is arranged at the bottom of the device body 13, a fluorescent lamp 7, a controller 6 and a monitor 8 are arranged on the device body 13, a first planting area 11, a second planting area 25, a third planting area 29 and a fourth planting area 30 are arranged on one side of the bottom of the device body 13, and a sampling port 12 is arranged at the bottom of each of the first planting area 11, a second planting area 25, a third planting area 29 and a fourth planting area 30, and an integrated sensor 22 is arranged at the bottom of the other side of the device body 13, and a graphene heating plate 9 and a semiconductor cooling plate 10 are arranged on the top;

[0017] Water inlet and outlet system 1 and water inlet and outlet system 2 are respectively arranged on both sides of the device body 13 .

[0018] Specifically, the water inlet and outlet system 1 includes a water pipe 24 connected to the device body 13, a water storage tank 1 is arranged at one end of the water pipe 24, and a flow meter 3, a water pump 4 and a valve 5 are arranged on the water pipe 24.

[0019] Specifically, an integrated sensor 2 is disposed inside the water storage tank 1 , and one end of the water pipe 24 extends into the device body 13 on a side close to the second planting area 25 and is placed above the second planting area 25 .

[0020] Specifically, the second water inlet and outlet system includes a connecting water pipe 23, one end of which is provided with a water storage tank 2 18, the connecting water pipe 23 is provided with a flow meter 26, a water pump 27 and a valve 28, and the inside of the water storage tank 18 is provided with 31, and one end of the connecting water pipe 23 extends into the inside of the device body 13 away from the side of the second planting area 25.

[0021] Specifically, a wave maker 15 and a wind tube 14 are provided on one side of the device body 13 close to the water pipe 23 .

[0022] Working principle: Place bedrock 21 into the device in advance to simulate the rock at the bottom of the soil in actual situations. Fill the soil into the device with tools, with the filling surface parallel to the slope, and reserve a height of about 40cm to place the vegetation soil container; connect the water pipe 24 with the valve 5, sewage storage device 1, flow meter 3, water pump 4, and water inlet 19; connect the water pipe 23, water pump 27, flow meter 26, valve 28 to the seawater storage device 18. Close all valves, and inject an appropriate amount of sewage and seawater into the water storage tanks 1 and 18; power the central control panel 6, fluorescent lamp 7, monitor 8, hair dryer 14, and wave maker 15; close all valves and switches in the device, and inject water into the device until the water level remains stable and does not drop;

[0023] Place the prepared soil vegetation module on top of the bedrock. The first planting area 11, the second planting area 25, the third planting area 29, and the fourth planting area 30 can be four different mangrove plants, and the first planting area 11 and the fourth planting area 30 can be of different slopes, so as to conduct comparative experiments. Open valve 28, and water pump 27 injects seawater into device 13 through flow meter 26. The height of seawater filling can be freely selected according to experimental needs. After the seawater reaches a suitable height and no longer changes, close water pump 27 and valve 28; according to experimental requirements, you can choose whether to add oysters, fiddler crabs, sand shellfish, mudflat fish and various benthic animals into the device to more realistically simulate natural conditions;

[0024] Turn on the motor 15 to drive the wave-making board 25 to make waves; at the same time, the fluorescent lamp 7 and the wind tube 14 can be turned on or off as needed; if the seawater needs to be heated, the graphene heating plate 9 can be turned on, and the semiconductor cooling plate 10 can be turned on to cool down; open the valve 5, the water pump 4 will break up the sewage from the water storage tank 1 into small streams through the water flow dividing device 19 to simulate the land surface sewage flowing into the mangrove plants and then merge into the seawater; open the valve 16, the seawater flows into the container 17 through the outlet, and the nitrogen content, pH salinity, oxygen content, etc. of the seawater in the container 17 can be tested later; after releasing part of the seawater, the water level drops to the specified height and closes the valve 16, at this moment, the natural environment ebb tide can be simulated. If you need to simulate the high tide, you can open the water pump 27 valve 28 to add seawater to the device; after the above operations are completed, the sensors built into the water body and the soil will transmit the data such as pH, salinity, temperature, oxygen content, etc. to the controller 6 and display them on the display screen; at the same time, a set of control programs simulating the high tide and low tide can be written by programming to achieve semi-automatic operation of the entire experimental process. By opening the sampling hole 12 on the side wall of the device, the water flow inside the soil can be collected for nitrogen detection; at the same time, the sampler 32 can be used to probe into the deep part of the vegetation box through the sampling port 12 to collect soil for detection; during the entire experiment, the camera 8 is always in the on state to record the entire experimental process; after the camera is connected to the network, the experimenter can view the overall status of the entire experimental device anytime and anywhere, which is convenient and fast. Through rapid material replacement, the coastal wetland construction system is simulated continuously to explore the nitrogen loss of mangrove plants under different real natural environments; it has the characteristics of convenient sampling, easy analysis of experimental results, and low cost; the device combines the simulation of tides, waves and other functions; the physical and chemical properties of soil and seawater can be directly displayed on the controller panel, and the semi-automatic control of the experiment can be achieved through the operation process preset in the controller, reducing the time and energy consumption of the experimenters.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A coastal wetland soil nitrogen pollution monitoring experimental device based on convenient material replacement, comprising a device body (13), characterized in that: A bedrock (21) is arranged at the bottom of the device body (13); a fluorescent lamp (7), a controller (6) and a monitor (8) are arranged on the device body (13); a first planting area (11), a second planting area (25), a third planting area (29) and a fourth planting area (30) are arranged on one side of the bottom of the device body (13); and a sampling port (12) is arranged at the bottom of each of the two bottoms; an integrated sensor 2 (22) is arranged at the bottom of the other side of the device body (13); and a graphene heating plate (9) and a semiconductor cooling plate (10) are arranged on the top; A first water inlet and outlet system and a second water inlet and outlet system are respectively arranged on both sides of the device body (13).

2. According to claim 1, a coastal wetland soil nitrogen pollution monitoring experimental device based on convenient material replacement is characterized by: The water inlet and outlet system 1 comprises a water pipe (24) connected to the device body (13), a water storage tank (1) is provided at one end of the water pipe (24), and a flow meter (3), a water pump (4) and a valve 1 (5) are provided on the water pipe (24).

3. According to claim 2, a coastal wetland soil nitrogen pollution monitoring experimental device based on convenient material replacement is characterized by: An integrated sensor 1 (2) is arranged inside the water storage tank (1), and one end of the water pipe (24) extends into a side of the device body (13) close to the second planting area (25) and is placed above the second planting area (25).

4. According to claim 1, a coastal wetland soil nitrogen pollution monitoring experimental device based on convenient material replacement is characterized by: The second water inlet and outlet system comprises a connecting water pipe (23), one end of which is provided with a second water storage tank (18), the connecting water pipe (23) is provided with a flow meter (26), a second water pump (27) and a valve (28), the second water storage tank (18) is provided with (31), and one end of the connecting water pipe (23) extends into the interior of the device body (13) away from the second planting area (25).

5. According to claim 1, a coastal wetland soil nitrogen pollution monitoring experimental device based on convenient material replacement is characterized by: A wave maker (15) and a wind tube (14) are provided on one side of the device body (13) close to the connection water pipe (23).

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