Carbon fixation and oxygen release value assessment system and method for protected forest ecosystems

Abstract

The present invention discloses a system and method for assessing the carbon fixation and oxygen release value of a forest ecosystem in a protected area, including a collection module and an assessment module, wherein the collection module includes an assembly shell, wherein the assembly shell is provided with a plurality of collection parts at intervals from top to bottom; wherein the collection parts include an inner shell slidably arranged in the assembly shell, wherein a carbon dioxide sensor, an oxygen sensor and a temperature and humidity sensor are arranged in the inner shell, wherein a threaded sleeve is arranged in the inner shell, and the threaded sleeve is threadedly sleeved on the outer wall of a lead screw. The assembly shell of the present invention is provided with a plurality of collection parts at intervals within the assembly shell, wherein the plurality of collection parts are at different heights in the vertical direction, and carbon dioxide, oxygen and temperature and humidity data at different heights of the forest can be collected simultaneously, which not only ensures the timeliness of data monitoring, but also improves the accuracy of the collected data, and ensures the accuracy of the results of subsequent carbon fixation and oxygen release value assessment.

Description

Technical Field

[0001] The present invention relates to the technical field of forest ecosystem assessment, and in particular to a system and method for assessing the carbon fixation and oxygen release value of a forest ecosystem in a protected area. Background Art

[0002] Forests are one of the most important ecosystems on Earth. They not only provide habitats and food, but also have important environmental functions. The most important function is carbon fixation and oxygen release. Carbon fixation and oxygen release refers to the process in which plants use their own photosynthesis to fix carbon dioxide in the air and release oxygen. In order to scientifically manage the forest system, it is necessary to evaluate the carbon fixation and oxygen release value of the forest ecosystem.

[0003] The carbon fixation and oxygen release value assessment of forest ecosystems usually involves installing a collection module in the forest block to be tested to collect data such as carbon dioxide, oxygen, temperature and humidity, and then performing a carbon fixation and oxygen release value assessment based on the collected data. Although the collection module in the above method can collect the required data, the collection module is usually always at a fixed height for data collection, and there are differences in carbon dioxide, oxygen, temperature and humidity at different heights in the vertical direction. If only data at a fixed height is collected, the accuracy of data collection for the forest block to be tested is easily reduced, and the accuracy of subsequent carbon fixation and oxygen release value assessment results is also affected. To this end, we propose a carbon fixation and oxygen release value assessment system and method for forest ecosystems in protected areas. Summary of the invention

[0004] The purpose of the present invention is to provide a system and method for evaluating the carbon fixation and oxygen release value of a forest ecosystem in a protected area, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The carbon fixation and oxygen release value assessment system of the forest ecosystem in the protected area includes a collection module for collecting forest data in the protected area and an assessment module for receiving the data collected by the collection module and performing carbon fixation and oxygen release value assessment based on the data. The collection module includes an assembly shell, and the assembly shell is provided with a plurality of collection parts at intervals from top to bottom; wherein,

[0007] The collecting part includes an inner shell slidably arranged in the assembly shell, and the inner walls on both sides of the assembly shell are vertically opened with through holes, and the two sides of the inner shell are respectively provided with air inlets and air outlets corresponding to the through holes. A carbon dioxide sensor, an oxygen sensor and a temperature and humidity sensor are arranged in the inner shell, and a threaded sleeve is arranged in the inner shell, and the threaded sleeve is threadedly sleeved on the outer wall of the lead screw. The lead screw movably passes through the inner shell and is vertically rotatable and arranged in the assembly shell. The bottom end of the lead screw extends into the bottom seat and is connected to the output end of the rotating device in the bottom seat. The bottom seat is arranged at the bottom of the assembly shell, and a power supply module, a wireless communication module and a controller electrically connected to the carbon dioxide sensor, the oxygen sensor, the temperature and humidity sensor and the rotating device are arranged in the bottom seat.

[0008] A further improvement is that the threaded sleeve is rotatably arranged in the inner shell through a bearing, and a locking member is provided in the inner shell for fixing the threaded sleeve and the inner shell, wherein the locking member comprises:

[0009] A chuck is fixedly sleeved on the outer wall of the threaded sleeve, and a plurality of groups of insertion holes are provided on the circumferential outer wall of the chuck;

[0010] A support plate is fixed in the inner shell and located on one side of the chuck, a card column for inserting into the insertion hole is horizontally inserted on the support plate, an electromagnetic ring is provided on the outer wall of the support plate away from the chuck, and the electromagnetic ring is energized to adsorb the card column, driving the card column to move and insert into the insertion hole; and,

[0011] An elastic member is arranged on the outer wall of the clamping column and connected to the support plate at one end and the outer wall of the clamping column at the other end, and is used to drive the clamping column to reset and move out of the socket when the electromagnetic ring is powered off;

[0012] The electromagnetic ring is electrically connected to the controller.

[0013] A further improvement is that a mounting bracket is fixedly provided inside the inner shell and between the air inlet and the air outlet, and the mounting bracket is also located above the threaded sleeve. The mounting bracket is movably sleeved on the outside of the screw, and a fan blade member is rotatably sleeved on the top center of the mounting bracket. A transmission rod is vertically rotatably inserted on the mounting bracket and located on one side of the fan blade member, and both ends of the transmission rod are respectively connected to the fan blade member and the threaded sleeve through a transmission member.

[0014] A further improvement is that matching filter screens are provided in the openings on both sides of the assembly shell.

[0015] A further improvement is that an annular frame is provided on the outer side of the assembly shell, a cleaning member for cleaning the filter is provided on the inner wall of the annular frame facing the assembly shell, a counterweight is provided at the bottom of the annular frame, and a driving member is connected to the annular frame. The driving member is arranged in the top seat and is transmission-connected to one end of the lead screw extending from the top to the top seat, and is used to drive the annular frame to reciprocate up and down, and the top seat is arranged at the top of the assembly shell.

[0016] A further improvement is that the driving member comprises:

[0017] The rotating shaft is provided with two groups, which are respectively arranged horizontally and rotated on both sides of the inner cavity of the top seat, the rotating shaft and the lead screw are connected through a second transmission member, and the outer wall of the rotating shaft is provided with a toothless gear; and,

[0018] The reels are provided with two groups, which are respectively arranged horizontally on both sides of the inner cavity of the top seat and located below the rotating shaft. The outer wall of the reels is provided with a driven gear meshing with the toothless gear. The outer wall of the reels is wound with a pull rope, and one end of the pull rope passes through the top seat and is connected to the annular frame;

[0019] The rotating shaft is driven to rotate by the second transmission member when the lead screw rotates, and during the rotation, the winding shaft is driven to rotate through the toothless gear and the driven gear to pull the annular frame upward to a preset position by the winding rope.

[0020] A further improvement is that an image acquisition device and a shielding seat are provided on the top of the top seat, and a wind direction and speed sensor and a light sensor are provided on the shielding seat. The image acquisition device, wind direction and speed sensor and light sensor are all electrically connected to the power supply module, the wireless communication module and the controller.

[0021] A further improvement is that a mounting column is provided at the bottom of the base.

[0022] The method for assessing the carbon fixation and oxygen release value of the forest ecosystem in the protected area, using the above-mentioned assessment system, includes the following steps:

[0023] S1: Install the collection unit in the block to be tested in the forest of the protected area, drive the lead screw by driving the rotating device, and the lead screw drives the threaded sleeve to adjust the height of the inner shell in the assembly shell, and collect data of the block to be tested in the forest of the protected area through the carbon dioxide sensor, oxygen sensor and temperature and humidity sensor in the inner shell at different heights;

[0024] S2: The wireless communication module sends the collected data to the evaluation module through the wireless communication module. After receiving the collected data, the evaluation module evaluates the carbon fixation and oxygen release value to obtain an evaluation result.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In the assembly shell of the present invention, a plurality of collecting parts are arranged at intervals inside the assembly shell, and the plurality of collecting parts are located at different heights in the vertical direction, so that the carbon dioxide, oxygen, temperature and humidity data at different heights in the forest can be collected simultaneously, which not only ensures the timeliness of data monitoring, but also improves the accuracy of the collected data, and ensures the accuracy of the results of subsequent carbon fixation and oxygen release value assessment. At the same time, the rotating device and the lead screw adopted in the present invention can cooperate with the threaded sleeve in the collecting part, so as to realize the height adjustment of the collecting part, meet the needs of users, and improve the practicability of the collecting module. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 Partial structural section view;

[0029] Figure 3 It is a schematic diagram of the internal structure of the collection part in the present invention;

[0030] Figure 4 It is a schematic diagram of the ring frame structure in the present invention;

[0031] Figure 5 It is a cross-sectional view of the driving member structure in the present invention.

[0032] In the figure: 1. assembly shell; 2. inner shell; 3. threaded sleeve; 4. carbon dioxide sensor; 5. oxygen sensor; 6. temperature and humidity sensor; 7. air inlet; 8. air outlet; 9. bottom seat; 10. rotating device; 11. screw; 12. chuck; 13. support plate; 14. clamping column; 15. electromagnetic ring; 16. elastic member; 17. filter; 18. mounting frame; 19. fan blade member; 20. transmission rod; 21. transmission member 1; 22. power supply module; 23. wireless communication module; 24. mounting column; 25. top seat; 26. rotating shaft; 27. transmission member 2; 28. reel; 29. ​​toothless gear; 30. pull rope; 31. ring frame; 32. cleaning member; 33. counterweight; 34. shielding seat; 35. wind direction and speed sensor; 36. light sensor. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1

[0035] Please refer to the attached Figure 1 -Attached Figure 3

[0036] The carbon fixation and oxygen release value assessment system of the forest ecosystem in the protected area includes a collection module for collecting forest data in the protected area and an assessment module for receiving the data collected by the collection module and conducting carbon fixation and oxygen release value assessment based on the data;

[0037] The evaluation module belongs to the prior art. For example, the evaluation module includes a storage unit, a comparison unit and an evaluation unit. During actual use, collection modules are installed in different areas of the forest ecosystem of the protected area. Collection modules in different areas collect data of the area in which they are located (the data includes, for example, carbon dioxide, oxygen, temperature and humidity, and image data, etc.). The collected data of different areas are stored through the storage unit. Then the comparison unit compares the corresponding data collected from different areas (for example, carbon dioxide and carbon dioxide data) to obtain a comparison result. The evaluation unit evaluates according to the comparison result to obtain the carbon fixation and oxygen release value levels of different areas of the forest ecosystem of the protected area (for example, excellent, medium and poor). At the same time, the collection module can also collect image data in the area. According to the image data, the plant species, growth conditions and other data in the area can be obtained, so that users can study the value of plants for carbon fixation and oxygen release, which is also helpful for better carbon fixation and oxygen release value evaluation.

[0038] The collection module includes an assembly shell 1, in which a plurality of collection parts are arranged from top to bottom. Since the plurality of collection parts are at different heights in the assembly shell 1, it is convenient to collect data at different heights of the forest in the vertical direction of the protected area.

[0039] The collecting part includes an inner shell 2 slidably arranged in the assembly shell 1. Specifically, the inner shell 2 can adopt a slider to cooperate with the slide rail or slide groove of the inner wall of the assembly shell 1; both sides of the inner wall of the assembly shell 1 are vertically opened with through holes, and both sides of the inner shell 2 are respectively provided with an air inlet 7 and an air outlet 8 corresponding to the through hole, and the gas can enter the air inlet 7 through the through hole or the gas discharged from the air outlet 8 is discharged to the outside; a carbon dioxide sensor 4, an oxygen sensor 5 and a temperature and humidity sensor 6 are arranged in the inner shell 2, and the carbon dioxide sensor 4, the oxygen sensor 5 and the temperature and humidity sensor 6 are all related to the prior art and will not be described in detail here.

[0040] A threaded sleeve 3 is provided in the inner shell 2, and the threaded sleeve 3 is threadedly sleeved on the outer wall of the screw 11. The screw 11 movably penetrates the inner shell 2 and is vertically rotated in the assembly shell 1. The bottom end of the screw 11 extends into the bottom seat 9 and is connected to the output end of the rotating device 10 in the bottom seat 9. The rotating device 10 is, for example, a motor and a reducer. The threaded sleeve 3 can be driven by the rotation of the rotating device 10, so that the threaded sleeve 3 can drive the inner shell 2 to move in the assembly shell 1.

[0041] The bottom seat 9 is arranged at the bottom of the assembly shell 1, and a power supply module 22, a wireless communication module 23 and a controller electrically connected to the carbon dioxide sensor 4, the oxygen sensor 5, the temperature and humidity sensor 6 and the rotating device 10 are arranged in the bottom seat 9. The power supply module 22, such as a battery, is used to provide power for the electrical components in the collection module. The wireless communication module 23 is used to realize remote communication, and is used to send the data collected by the carbon dioxide sensor 4, the oxygen sensor 5, and the temperature and humidity sensor 6 to the evaluation module. At the same time, the wireless communication module 23 can also be connected to an external mobile terminal, and can receive a control signal sent by the external mobile terminal, so that the controller controls the rotation device 10 and other electrical components to work.

[0042] Preferably, the threaded sleeve 3 of this embodiment is rotatably disposed in the inner shell 2 through a bearing, so that the threaded sleeve 3 can rotate relative to the inner shell 2, and can drive the inner shell 2 to move when the threaded sleeve 3 moves; a locking member is provided in the inner shell 2 for fixing the threaded sleeve 3 and the inner shell 2, wherein the locking member includes:

[0043] The chuck 12 is fixedly sleeved on the outer wall of the threaded sleeve 3, and the circumferential outer wall of the chuck 12 is provided with a plurality of groups of insertion holes;

[0044] A support plate 13 is fixed in the inner shell 2 and is located on one side of the chuck 12. A card column 14 for inserting into the jack is horizontally inserted on the support plate 13. An electromagnetic ring 15 is provided on the outer wall of the support plate 13 away from the chuck 12. The electromagnetic ring 15 is energized to adsorb the card column 14, driving the card column 14 to move and insert into the jack. Specifically, one end of the card column 14 has a permanent magnet block that cooperates with the electromagnetic ring 15; and,

[0045] The elastic member 16, such as a spring, is disposed on the outer wall of the clamping column 14 and connected to the support plate 13 at one end and connected to the outer wall of the clamping column 14 at the other end, and is used to drive the clamping column 14 to reset and move out of the socket when the electromagnetic ring 15 is powered off;

[0046] The electromagnetic ring 15 is electrically connected to the controller.

[0047] This arrangement facilitates height adjustment of a single collecting section. By opening the electromagnetic ring 15 in the collecting section that needs to be adjusted, the electromagnetic ring 15 adsorbs the card column 14, so that the card column 14 moves and is inserted into the insertion hole of the chuck 12. At this time, the inner shell 2 in the corresponding collecting section is fixed to the threaded sleeve 3 inside it, and then when the screw 11 rotates, the threaded sleeve 3 drives the inner shell 2 to move. For other collecting sections, since the threaded sleeve 3 inside them is not fixed to the inner shell 2 by the locking piece, the threaded sleeve 3 rotates with the screw 11 when the screw 11 rotates, and does not drive the inner shell 2 to move.

[0048] Preferably, a mounting frame 18 is fixedly provided in the inner shell 2 of the present embodiment and located between the air inlet 7 and the air outlet 8. The mounting frame 18 is also located above the threaded sleeve 3. The mounting frame 18 is movably sleeved on the outside of the lead screw 11. A fan blade member 19 is rotatably sleeved on the top center of the mounting frame 18. The fan blade member 19, for example, includes a mounting sleeve and a plurality of fan blades arranged on the outer wall of the mounting sleeve. A transmission rod 20 is vertically rotatably inserted on the mounting frame 18 and located on one side of the fan blade member 19. A bearing is provided at the connection between the transmission rod 20 and the mounting frame 18. Both ends of the transmission rod 20 are respectively connected to the fan blade member 19 and the threaded sleeve 3 through a transmission member 21. The transmission member 21 is, for example, two sets of meshing gears.

[0049] Through this arrangement, when the locking member does not fix the threaded sleeve 3 and the inner shell 2, the screw 11 rotates to drive the threaded sleeve 3 to rotate, the threaded sleeve 3 drives the transmission rod 20 through the transmission member 21, and the transmission rod 20 drives the fan blade member 19 to rotate through the transmission member 21, thereby stabilizing the flow rate and flow of air entering and leaving the inner shell 2, ensuring that the internal collection sensor has good laminar flow when collecting airflow, and also helping to improve the collection quality of the collection part.

[0050] Please see attached Figure 4 -Attached Figure 5

[0051] Preferably, matching filter screens 17 are provided in the openings on both sides of the assembly shell 1 of this embodiment to filter the gas entering the inner shell 2 to prevent dust and the like from affecting the internal collection sensors.

[0052] Preferably, an annular frame 31 is sleeved on the outer side of the assembly shell 1 of this embodiment. A cleaning member 32 for cleaning the filter screen 17 is provided on the inner wall of the annular frame 31 facing the assembly shell 1. The cleaning member 32 is, for example, a brush. A counterweight 33 is provided at the bottom of the annular frame 31. The annular frame 31 is connected to a driving member, which is provided in the top seat 25 and is transmission-connected to one end of the lead screw 11 extending from the top to the top seat 25, and is used to drive the annular frame 31 to reciprocate up and down. The top seat 25 is provided at the top of the assembly shell 1. In order to ensure the stability of the annular frame 31 in moving up and down, a guide rod penetrating the annular frame 31 can be vertically provided between the bottom seat 9 and the top seat 25;

[0053] When in use, the screw 11 rotates to drive the annular frame 31 to reciprocate up and down through the driving member. When the annular frame 31 reciprocates up and down, the cleaning member 32 on its inner wall rubs the filter screen 17 to clean the filter screen 17 and prevent the filter screen 17 from being blocked and affecting the gas entering and exiting the inner shell 2.

[0054] Preferably, the driving member of this embodiment includes:

[0055] The rotating shaft 26 is provided with two groups, which are respectively arranged horizontally and rotatably on both sides of the inner cavity of the top seat 25. The rotating shaft 26 and the lead screw 11 are connected by a transmission member 27. For example, the transmission member 27 is a bevel gear set, and the outer walls of the rotating shaft 26 and the lead screw 11 are provided with bevel gears;

[0056] The outer wall of the rotating shaft 26 is provided with a toothless gear 29; and,

[0057] The reels 28 are provided with two groups, which are respectively arranged horizontally and rotatably on both sides of the inner cavity of the top seat 25 and are located below the rotating shaft 26. The outer wall of the reels 28 is provided with a driven gear meshing with the toothless gear 29. The outer wall of the reels 28 is wound with a pull rope 30, and one end of the pull rope 30 passes through the top seat 25 and is connected to the annular frame 31;

[0058] When the lead screw 11 rotates, the rotating shaft 26 is driven to rotate by the transmission member 27, and when rotating, the reel 28 is driven to rotate the winding rope 30 through the toothless gear 29 and the driven gear to pull the annular frame 31 upward to a preset position. After the annular frame 31 moves upward to the preset position, the toothless gear 29 is separated from the driven gear, and under the action of the counterweight block 33, the annular frame 31 is reset downward, thereby realizing the up and down reciprocating movement of the annular frame 31.

[0059] Preferably, the top of the top seat 25 of this embodiment is provided with an image acquisition device (not shown in the figure) and a shielding seat 34. The image acquisition device (not shown in the figure) is specifically located between the top seat 25 and the shielding seat 34. The image acquisition device is, for example, a camera, which is used to collect data such as the growth status of plants in the protected area forest. The bottom cross-sectional area of ​​the shielding seat 34 is larger than the top cross-sectional area of ​​the top seat 25. The shielding seat 34 serves to shield from rain and sun. A wind direction and speed sensor 35 and a light sensor 36 are provided on the shielding seat 34 to increase the data acquisition range so as to improve the quality of the evaluation results. The image acquisition device, the wind direction and speed sensor 35 and the light sensor 36 are all electrically connected to the power supply module 22, the wireless communication module 23 and the controller.

[0060] Preferably, a mounting column 24 is provided at the bottom of the base seat 9 of the present embodiment so as to install the acquisition module in the block to be measured in the forest of the protected area.

[0061] The method for assessing the carbon fixation and oxygen release value of the forest ecosystem in the protected area, using the above-mentioned assessment system, includes the following steps:

[0062] S1: Install the collection unit in the block to be tested in the forest of the protected area, drive the screw 11 by driving the rotating device 10, and the screw 11 drives the threaded sleeve 3 to adjust the height of the inner shell 2 in the assembly shell 1, and collect data of the block to be tested in the forest of the protected area through the carbon dioxide sensor 4, oxygen sensor 5 and temperature and humidity sensor 6 in the inner shell 2 at different heights;

[0063] S2 The wireless communication module 23 sends the collected data to the evaluation module through the wireless communication module 23. After receiving the collected data, the evaluation module evaluates the carbon fixation and oxygen release value to obtain an evaluation result.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbon fixation and oxygen release value assessment system for a protected area forest ecosystem, comprising a collection module for collecting protected area forest data and an assessment module for receiving data collected by the collection module and performing carbon fixation and oxygen release value assessment based on the data, characterized in that: The collection module comprises an assembly shell (1), wherein the assembly shell (1) is provided with a plurality of collection parts spaced apart from top to bottom; wherein: The collecting part comprises an inner shell (2) slidably arranged in the assembly shell (1), the inner walls on both sides of the assembly shell (1) are vertically provided with through openings, the two sides of the inner shell (2) are respectively provided with an air inlet (7) and an air outlet (8) corresponding to the through openings, the inner shell (2) is provided with a carbon dioxide sensor (4), an oxygen sensor (5) and a temperature and humidity sensor (6), the inner shell (2) is provided with a threaded sleeve (3), the threaded sleeve (3) is threadedly sleeved on the outer wall of a lead screw (11), and the lead screw (11) is provided with a threaded sleeve (3) in the inner shell (2). 1) movably penetrates the inner shell (2) and is vertically rotatable in the assembly shell (1), the bottom end of the lead screw (11) extends into the bottom seat (9) and is connected to the output end of the rotating device (10) in the bottom seat (9), the bottom seat (9) is arranged at the bottom of the assembly shell (1), and the bottom seat (9) is provided with a power supply module (22) electrically connected to the carbon dioxide sensor (4), the oxygen sensor (5), the temperature and humidity sensor (6) and the rotating device (10), a wireless communication module (23) and a controller; The threaded sleeve (3) is rotatably arranged in the inner shell (2) via a bearing, and a locking member is arranged in the inner shell (2) for fixing the threaded sleeve (3) and the inner shell (2), wherein the locking member comprises: A chuck (12) is fixedly sleeved on the outer wall of the threaded sleeve (3), and a plurality of groups of insertion holes are provided on the circumferential outer wall of the chuck (12); A support plate (13) is fixed in the inner shell (2) and is located on one side of the chuck (12); a card column (14) for inserting into the insertion hole is horizontally inserted on the support plate (13); an electromagnetic ring (15) is provided on the outer wall of the support plate (13) away from the chuck (12); the electromagnetic ring (15) is energized to adsorb the card column (14), and drives the card column (14) to move and insert into the insertion hole; and, An elastic member (16) is arranged on the outer wall of the clamping column (14) and has one end connected to the support plate (13) and the other end connected to the outer wall of the clamping column (14), and is used to drive the clamping column (14) to reset and move out of the socket when the electromagnetic ring (15) is powered off; The electromagnetic ring (15) is electrically connected to the controller; A mounting frame (18) is fixedly provided inside the inner shell (2) and between the air inlet (7) and the air outlet (8); the mounting frame (18) is also located above the threaded sleeve (3); the mounting frame (18) is movably sleeved on the outside of the lead screw (11); a fan blade (19) is rotatably sleeved on the top center of the mounting frame (18); a transmission rod (20) is vertically rotatably inserted on the mounting frame (18) and located on one side of the fan blade (19); and two ends of the transmission rod (20) are respectively connected to the fan blade (19) and the threaded sleeve (3) through a transmission member 1 (21); Matching filter screens (17) are provided in the openings on both sides of the assembly shell (1); The outer side of the assembly shell (1) is provided with an annular frame (31), the inner wall of the annular frame (31) facing the assembly shell (1) is provided with a cleaning member (32) for cleaning the filter screen (17), the bottom of the annular frame (31) is provided with a counterweight (33), the annular frame (31) is connected with a driving member, the driving member is arranged in the top seat (25) and is drivingly connected to one end of the lead screw (11) extending from the top to the top seat (25), and is used to drive the annular frame (31) to move reciprocatingly up and down, and the top seat (25) is arranged at the top of the assembly shell (1); The driving member comprises: The rotating shaft (26) is provided with two groups, which are respectively arranged horizontally and rotatably on both sides of the inner cavity of the top seat (25), the rotating shaft (26) and the lead screw (11) are connected by transmission member 2 (27), and the outer wall of the rotating shaft (26) is provided with a toothless gear (29); and, The reels (28) are provided with two groups, which are respectively arranged horizontally and rotatably on both sides of the inner cavity of the top seat (25) and are located below the rotating shaft (26). The outer wall of the reels (28) is provided with a driven gear meshing with the toothless gear (29). The outer wall of the reels (28) is wound with a pull rope (30), and one end of the pull rope (30) passes through the top seat (25) and is connected to the annular frame (31); The rotating shaft (26) is driven to rotate by the second transmission member (27) when the lead screw (11) rotates, and during the rotation, the rotating shaft (26) drives the reel (28) to rotate the reel rope (30) through the toothless gear (29) and the driven gear, and pulls the annular frame (31) upward to a preset position.

2. The evaluation system according to claim 1, characterized in that: An image acquisition device and a shielding seat (34) are provided on the top of the top seat (25); a wind direction and wind speed sensor (35) and a light sensor (36) are provided on the shielding seat (34); and the image acquisition device, the wind direction and wind speed sensor (35) and the light sensor (36) are all electrically connected to the power supply module (22), the wireless communication module (23) and the controller.

3. The evaluation system according to claim 1, characterized in that: A mounting column (24) is provided at the bottom of the bottom seat (9).

4. A method for assessing the carbon fixation and oxygen release value of a protected forest ecosystem, using an assessment system as described in any one of claims 1 to 3, characterized in that: The following steps are involved: S1: The data collection unit is installed in the block to be tested in the forest of the protected area, and the screw (11) is driven by the rotating device (10), and the screw (11) drives the threaded sleeve (3), and the height of the inner shell (2) in the assembly shell (1) is adjusted, and the data of the block to be tested in the forest of the protected area is collected through the carbon dioxide sensor (4), oxygen sensor (5) and temperature and humidity sensor (6) in the inner shell (2) at different heights; S2: The wireless communication module (23) sends the collected data to the evaluation module through the wireless communication module (23), and the evaluation module evaluates the carbon fixation and oxygen release value after receiving the collected data to obtain an evaluation result.

Images