Arbor species growth observation method

Abstract

The invention discloses an arbor species growth observation method, the front end and the rear end of a bottom box are fixedly connected with bases, the bottom end of the inner wall of a threaded sleeve is fixedly connected with a rubber ring, the top end of the inner wall of the rubber ring is in threaded connection with a threaded shaft, a spring column is composed of a spring cylinder, a spring, a column body and a ventilation net, and the spring cylinder sleeves the outer wall of the spring; the spring can be protected, so that the situation that the spring is rusted is avoided, a sliding block, a clamping plate and a first L-shaped indicating rod can slide more stably under the situation that a spring column freely stretches out and draws back, the spring column can be protected by arranging a hollow box, a baffle can shield part of the area of a sliding groove frame, and therefore the spring can be prevented from being rusted. The shielding area belongs to the area where the sliding block is about to slide, so that external dust or water vapor can be prevented from being accumulated in the area where the sliding block is about to slide, the stability of the sliding block and the clamping plate in the sliding process can be improved, the situation that tree barks deform is avoided, and meanwhile the authenticity of observation data is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tree growth observation, and in particular to a method for observing the growth of arbor species. Background Art

[0002] Tree growth observation is an important part of forestry and horticulture. It helps us understand the growth patterns of trees and their ability to adapt to the environment.

[0003] At present, when measuring the radial growth data of trees, manual measurement and recording are mostly adopted, and the trees cannot be monitored in real time, so that a lot of manpower is needed to measure the radial growth of trees in each cycle, which reduces the work efficiency of the radial growth measurement of trees. Based on these problems, Chinese patent CN219607917U discloses a tree radial growth observation instrument with simple structure and portable operation. It can achieve accurate measurement of the radial growth data of trees and can also update the data in real time according to the radial growth of trees, so as to facilitate users to regularly observe the records of the radial growth data of trees without affecting the natural growth of trees.

[0004] The spring structure in the observation device is directly exposed to the air, so water vapor and dust in the air will accumulate on the surface of the spring. If it is not removed for a long time, it will not only cause the spring to rust, but also affect the normal sliding of the support rod. At this time, the clamping plate structure will hinder the normal radial growth of the tree and cause the tree bark to deform, thereby affecting the authenticity of the observation data. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A method for observing the growth of tree species comprises the following steps:

[0008] S1. Install the bottom box on the ground next to the tree to be observed;

[0009] S2, setting two sets of clamping plates that move toward each other on both sides of the tree to be observed, and making the opposite surfaces of the two sets of clamping plates fit the outer wall of the tree to be observed;

[0010] S3, wrap the telescopic strap around the top of the tree to be observed;

[0011] S4. As the tree to be observed grows, the two sets of sliders will slide in opposite directions, and the two sets of first L-shaped indicator rods will slide together. The sum of the sliding distances of the pointers of the two sets of first L-shaped indicator rods on the first scale bar is the observation data of the radial growth of the tree.

[0012] S5. As the tree to be observed grows, the top block connected by the telescopic rod and the hollow rod will drive the slide rod to slide upward. At this time, the area where the pointer of the second L-shaped indicator rod slides on the third scale bar is the observation data of the vertical growth of the tree;

[0013] S6. When the second L-shaped indicator rod slides out of the area of ​​the third scale bar, the slide rod will drive the slide column to continue to move upward. At this time, the area exposed by the second scale bar on the slide column plus the entire area of ​​the third scale bar is also the observation data of the vertical growth of the tree.

[0014] As a further description of the above technical solution:

[0015] The front and rear ends of the bottom box are fixedly connected to a base, both ends of the base are vertically penetrated by a threaded sleeve, the bottom end of the inner wall of the threaded sleeve is fixedly connected to a rubber ring, the top end of the inner wall of the rubber ring is threadedly connected to a threaded shaft, the bottom center of the threaded shaft is fixedly connected to a first plug column, the top end of the outer wall of the first plug column is sleeved with the inner wall of the rubber ring, the outer edge of the top of the threaded sleeve is fixedly connected to a limiting ring, and the outer wall of the limiting ring is sleeved with a waterproof cover.

[0016] As a further description of the above technical solution:

[0017] The top end of the outer wall of one side of the bottom box is fixedly connected to a first bracket, the two sides of the inner wall of the first bracket are fixedly connected to a first shaft rod, the outer wall of the first shaft rod is rotatably connected to a support plate, the bottom end of the support plate is penetrated by a second shaft rod, the front end and the rear end of the second shaft rod are fixedly connected to the second bracket, the bottom end of the outer wall of one side of the second bracket is fixedly connected to a pad, both ends of the pad are vertically penetrated by a ring, the inner wall of the ring is sleeved with an insert block, the bottom of the insert block is fixedly connected to a second plug column, the top of the ring is fixedly connected to an externally threaded ring, and the outer wall of the externally threaded ring is threadedly connected to a threaded cover.

[0018] As a further description of the above technical solution:

[0019] A hollow box is fixedly connected to the top of the outer wall on the other side of the bottom box, spring columns are passed through the center of the front end and the rear end of the inner wall of the hollow box, sliders are fixedly connected to the opposite surfaces of the spring columns, baffles are fixedly connected to the outer wall on the same side of the sliders, and a clamping plate is fixedly connected to one end of the outer wall on the same side of the baffles.

[0020] As a further description of the above technical solution:

[0021] A slide groove frame passes through the center of one side of the inner wall of the hollow box, one end of the outer wall of the slider is slidably connected to the two ends of the inner wall of the slide groove frame, the same end of the top of the clamping plate is fixedly connected to the first L-shaped indicator rod, and the first scale bar is fixedly connected to the center of the top of the hollow box.

[0022] As a further description of the above technical solution:

[0023] A hollow column is fixedly connected to one end of the top of the bottom box, a first dustproof ventilation mesh frame is penetrated through the front and rear ends of the inner wall of the hollow column, and the inner wall of the hollow column is slidably connected to the outer wall of the sliding column.

[0024] As a further description of the above technical solution:

[0025] A roller block penetrates the bottom end of the outer wall of one side of the slide column, a slide groove is opened on one side of the inner wall of the hollow column, one end of the outer wall of the roller block is slidably connected to the inner wall of the slide groove, and a second scale bar is fixedly connected to the outer wall of the other side of the slide column.

[0026] As a further description of the above technical solution:

[0027] A sliding cavity is opened at the center of the top of the sliding column, and a ventilation cavity is opened at one end of the bottom of the sliding column. The internal space of the sliding cavity is communicated with the internal space of the ventilation cavity. A sliding rod is slidably connected to the inner wall of the sliding cavity, a third scale bar is fixedly connected to the outer wall of one side of the hollow column, a top block is fixedly connected to the top of the sliding rod, and a second L-shaped indicator rod is fixedly connected to one end of the bottom of the top block.

[0028] As a further description of the above technical solution:

[0029] A hollow rod is fixedly connected to the outer wall of one side of the top block, and a second dustproof ventilation mesh frame is penetrated by the front end and the rear end of the inner wall of the hollow rod, a telescopic rod is slidably connected to the inner wall of the hollow rod, a round-hair Velcro is fixedly connected to the front end of the telescopic rod, a rubber pad is fixedly connected to the front end of the outer wall of one side of the telescopic rod, a telescopic strap is fixedly connected to the rear end of the outer wall of one side of the telescopic rod, and one end of the telescopic strap is fixedly connected to the bristle Velcro.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] (1) The spring column is composed of a spring tube, a spring, a column and a ventilation net. The spring tube is sleeved on the outer wall of the spring to protect the spring, thereby preventing the spring from rusting. When the spring column is freely extended and retracted, the slider, the clamping plate and the first L-shaped indicator rod can slide more stably. By setting a hollow box, the spring column can be protected. The baffle can block part of the slide frame. The blocked area belongs to the area where the slider is about to slide. Therefore, it can prevent external dust or water vapor from accumulating in the area where the slider is about to slide, which is beneficial to improving the stability of the slider and the clamping plate during the sliding process. It not only avoids the deformation of the tree bark, but also improves the authenticity of the observation data.

[0032] (2) By providing a waterproof cover, a limit ring and a rubber ring, the sealing performance of the connection structure between the threaded shaft and the inner wall of the threaded sleeve can be improved, thereby slowing down the rusting speed of the connection structure between the threaded shaft and the threaded sleeve. A plurality of grooves are provided on the outer wall of the first plug column. When the first plug column is inserted into the soil, the soil and gravel will fill the internal grooves of the first plug column, which is beneficial to expand the contact area between the first plug column and the ground, thereby further improving the stability of the entire observation device.

[0033] (3) By setting a connection structure between the external thread ring and the thread cover, it mainly plays the role of fixing the plug block and the second plug column. After the base plate is fixed, the inclined support plate can support the observation device, thereby preventing the penetration device from tilting or collapsing.

[0034] (4) Wrap the telescopic strap around the top of the tree and fix it with round Velcro and thorny Velcro. When the tree grows upward, the top block connected to the telescopic rod and the hollow rod will drive the slide rod to slide upward together. At this time, the area where the pointer of the second L-shaped indicator rod slides on the third scale bar is the observation data of the vertical growth of the tree. When the second L-shaped indicator rod slides out of the area of ​​the third scale bar, the slide rod will drive the slide column to continue to move upward. At this time, the area exposed by the second scale bar on the slide column plus the entire area of ​​the third scale bar is also the observation data of the vertical growth of the tree. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is one of the structural schematic diagrams of the present invention;

[0036] Figure 2 This is the second structural schematic diagram of the present invention;

[0037] Figure 3 It is a front view of the present invention;

[0038] Figure 4 It is a front cross-sectional view of the present invention;

[0039] Figure 5 For the present invention Figure 4 A partial enlarged view of the middle A area;

[0040] Figure 6 For the present invention Figure 4 A partial enlarged view of the middle B area;

[0041] Figure 7 For the present invention Figure 4 A partial enlarged view of the middle C area;

[0042] Figure 8 For the present invention Figure 4 A partial enlarged view of the middle D area;

[0043] Fig. 9 For the present invention Figure 4 A partial enlarged view of the middle E area;

[0044] Fig.10 For the present invention Figure 4 A partial enlarged view of the F area in the middle.

[0045] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0046] 1. Bottom box; 2. Base; 3. Threaded sleeve; 4. Rubber ring; 5. Threaded shaft; 6. First plug column; 7. Limiting ring; 8. Waterproof cover; 9. First bracket; 10. First shaft rod; 11. Support plate; 12. Second shaft rod; 13. Second bracket; 14. Pad; 15. Ring; 16. Insert block; 17. Second plug column; 18. External threaded ring; 19. Threaded cover; 20. Hollow box; 21. Spring column; 22. Slider; 23. Baffle; 24. Clamping plate; 25. Slide frame; 26 , first L-shaped indicator rod; 27, first scale bar; 28, hollow column; 29, first dust-proof ventilation mesh frame; 30, sliding column; 31, roller block; 32, sliding groove; 33, second scale bar; 34, sliding cavity; 35, ventilation cavity; 36, sliding rod; 37, third scale bar; 38, top block; 39, second L-shaped indicator rod; 40, hollow rod; 41, second dust-proof ventilation mesh frame; 42, telescopic rod; 43, round fur Velcro; 44, rubber pad; 45, telescopic strap; 46, bristle Velcro. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0048] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0049] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0050] Reference Figure 1-10 , an embodiment provided by the present invention: a method for observing the growth of arbor species, comprising a bottom box 1, the front end and the rear end of the bottom box 1 are fixedly connected to a base 2, the bottom surface of the bottom box 1 and the bottom surface of the base 2 are arranged on the same horizontal plane, both ends of the base 2 are vertically penetrated by threaded sleeves 3, both ends of the base 2 are provided with through holes that penetrate up and down, the threaded sleeves 3 are installed in the through holes, the bottom ends of the inner walls of the threaded sleeves 3 are fixedly connected to rubber rings 4, the top ends of the inner walls of the rubber rings 4 are threadedly connected to threaded shafts 5, the bottom centers of the threaded shafts 5 are fixedly connected to first plug posts 6, the top ends of the outer walls of the first plug posts 6 are connected to the rubber rings 4 inner wall sleeve, the outer edge of the top of the threaded sleeve 3 is fixedly connected with a limiting ring 7, the outer wall of the limiting ring 7 is sleeved with a waterproof cover 8, and the waterproof cover 8, the limiting ring 7 and the rubber ring 4 are provided to improve the sealing performance of the connection structure between the threaded shaft 5 and the inner wall of the threaded sleeve 3, thereby slowing down the rusting speed of the connection structure between the threaded shaft 5 and the threaded sleeve 3. The outer wall of the first plug column 6 is provided with multiple groups of grooves. When the first plug column 6 is inserted into the soil, the soil and gravel will fill the internal grooves of the first plug column 6, which is beneficial to expand the contact area between the first plug column 6 and the ground, thereby further improving the stability of the entire observation device.

[0051] A first bracket 9 is fixedly connected to the top of the outer wall of one side of the bottom box 1, and a first shaft rod 10 is fixedly connected to the two sides of the inner wall of the first bracket 9. A support plate 11 is rotatably connected to the outer wall of the first shaft rod 10. By setting a connecting structure among the first bracket 9, the first shaft rod 10 and the support plate 11, the support plate 11 can rotate around the first shaft rod 10, a second shaft rod 12 passes through the bottom end of the support plate 11, and a second bracket 13 is fixedly connected to the front and rear ends of the second shaft rod 12. A pad 14 is fixedly connected to the bottom end of the outer wall of one side of the second bracket 13. By setting a connecting structure among the second bracket 13, the second shaft rod 12 and the pad 14, the pad 14 can rotate around the second shaft rod 12.

[0052] Both ends of the pad 14 are vertically penetrated by a collar 15, and both ends of the pad 14 are provided with through holes that penetrate up and down, and the collar 15 are installed in the through holes inside the pad 14, and the inner wall of the collar 15 is sleeved with an insert block 16, and the bottom of the insert block 16 is fixedly connected to the second plug column 17, and the top of the collar 15 is fixedly connected to an external threaded ring 18, and the outer wall of the external threaded ring 18 is threadedly connected to a threaded cover 19. By setting the connection structure between the external threaded ring 18 and the threaded cover 19, it mainly plays the role of fixing the insert block 16 and the second plug column 17. After the pad 14 is fixed, the inclined support plate 11 can support the observation device, thereby preventing the penetration device from tilting or collapsing.

[0053] A hollow box 20 is fixedly connected to the top of the outer wall on the other side of the bottom box 1, and spring columns 21 are penetrated at the center of the front end and the rear end of the inner wall of the hollow box 20. The spring column 21 is composed of a spring tube, a spring, a column and a ventilation net. A cavity running through the front and back is opened in the spring tube. The cavity is a structure that is narrow at both ends and wide in the middle. The narrow part of one end of the cavity is fixedly connected to the ventilation net, and the wide part of the cavity is installed with a spring, and the narrow part of the other end of the cavity is installed with a column. The spring can push the column in the opposite direction, and the opposite surface of the spring column 21 is fixedly connected to a slider 22, and the outer wall on the same side of the slider 22 is fixedly connected to a baffle 23, and one end of the outer wall on the same side of the baffle 23 is fixedly connected to a clamping plate 24, and the outer wall on the other side of the baffle 23 can slide closely against the two ends of the outer wall of one side of the hollow box 20. When the clamping plates 24 are close to each other, they can close to the outer wall of the tree, and a slide groove frame 25 is penetrated at the center of one side of the inner wall of the hollow box 20.

[0054] The baffle 23 can block a partial area of ​​the slide frame 25, and the blocked area belongs to the area where the slider 22 is about to slide, so that external dust or water vapor can be prevented from accumulating in the area where the slider 22 is about to slide. One end of the outer wall of the slider 22 is slidably connected to the two ends of the inner wall of the slide frame 25, and the same end of the top of the clamping plate 24 is fixedly connected to the first L-shaped indicator rod 26, and the first scale bar 27 is fixedly connected to the center of the top of the hollow box 20. When the slider 22 and the clamping plate 24 slide, the first L-shaped indicator rod 26 will also slide together, and the pointer on the first L-shaped indicator rod 26 can slide on the surface of the first scale bar 27. The sum of the sliding distances of the pointers of the two groups of first L-shaped indicator rods 26 is the data of the radial growth of the tree.

[0055] A hollow column 28 is fixedly connected to one end of the top of the bottom box 1. The front and rear ends of the inner wall of the hollow column 28 are penetrated by a first dustproof ventilation mesh frame 29. By setting the first dustproof ventilation mesh frame 29, the pressure difference between the inside and outside of the hollow column 28 can be quickly balanced. A sliding column 30 is slidably connected to the inner wall of the hollow column 28. A roller block 31 is penetrated at the bottom end of the outer wall of one side of the sliding column 30. A sliding groove 32 is opened on one side of the inner wall of the hollow column 28. One end of the outer wall of the roller block 31 is slidably connected to the inner wall of the sliding groove 32. The sliding column 30 is slidably connected to the inner wall of the sliding groove 32. A second scale bar 33 is fixedly connected to the outer wall on the other side. The connection structure between the roller block 31 and the slide groove 32 is provided to improve the stability of the slide column 30 during the up and down sliding process. A slide cavity 34 is opened at the center of the top of the slide column 30, and a ventilation cavity 35 is opened at one end of the bottom of the slide column 30. The internal space of the slide cavity 34 is interconnected with the internal space of the ventilation cavity 35. A slide rod 36 is slidably connected to the inner wall of the slide cavity 34. A third scale bar 37 is fixedly connected to the outer wall on one side of the hollow column 28.

[0056] The top of the slide bar 36 is fixedly connected to a top block 38, and one end of the bottom of the top block 38 is fixedly connected to a second L-shaped indicator rod 39. When the slide bar 36 slides upward, the second L-shaped indicator rod 39 will also move upward. At this time, the pointer on the second L-shaped indicator rod 39 can slide along the surface of the third scale bar 37. The area where the second L-shaped indicator rod 39 slides is the data of the vertical growth of the tree. When the second L-shaped indicator rod 39 slides out of the area of ​​the third scale bar 37, the slide bar 36 will drive the slide column 30 to continue to move upward. At this time, the area where the second scale bar 33 on the slide column 30 is exposed plus the entire area of ​​the third scale bar 37 is also the data of the vertical growth of the tree. A hollow rod 40 is fixedly connected to the wall, and a second dust-proof ventilation mesh frame 41 is penetrated by the front and rear ends of the inner wall of the hollow rod 40, and a telescopic rod 42 is slidably connected to the inner wall of the hollow rod 40, and a round-hair Velcro 43 is fixedly connected to the front end of the telescopic rod 42, and a rubber pad 44 is fixedly connected to the front end of the outer wall of one side of the telescopic rod 42, and a telescopic strap 45 is fixedly connected to the rear end of the outer wall of one side of the telescopic rod 42, and one end of the telescopic strap 45 is fixedly connected to the bristle Velcro 46. The telescopic strap 45 is wrapped around the top of the tree and fixed with the round-hair Velcro 43 and the bristle Velcro 46. When the tree grows upward, the top block 38 connected to the telescopic rod 42 and the hollow rod 40 will drive the sliding rod 36 to slide upward together.

[0057] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A method for observing the growth of tree species, characterized in that: The steps include: S1, installing the bottom box (1) on the ground beside the tree to be observed; S2, arranging two sets of clamping plates (24) that move toward each other on both sides of the tree to be observed, and making the opposite surfaces of the two sets of clamping plates (24) fit the outer wall of the tree to be observed; S3, wrapping the retractable strap (45) around the top of the tree to be observed; S4. As the tree to be observed grows, the two sets of sliders (22) will slide in opposite directions, and the two sets of first L-shaped indicator rods (26) will slide together. The sum of the sliding distances of the pointers of the two sets of first L-shaped indicator rods (26) on the first scale bar (27) is the observation data of the radial growth of the tree. S5. As the tree to be observed grows, the top block (38) connected to the telescopic rod (42) and the hollow rod (40) drives the slide rod (36) to slide upwards. At this time, the area where the pointer of the second L-shaped indicator rod (39) slides on the third scale bar (37) is the observation data of the vertical growth of the tree; S6. When the second L-shaped indicator rod (39) slides out of the area of ​​the third scale bar (37), the slide rod (36) drives the slide column (30) to continue to move upward. At this time, the area exposed by the second scale bar (33) on the slide column (30) plus the entire area of ​​the third scale bar (37) also represents the observation data of the vertical growth of the tree.

2. The method for observing the growth of tree species according to claim 1, characterized in that: The front and rear ends of the bottom box (1) are fixedly connected to a base (2), both ends of the base (2) are vertically penetrated by a threaded sleeve (3), the bottom end of the inner wall of the threaded sleeve (3) is fixedly connected to a rubber ring (4), the top end of the inner wall of the rubber ring (4) is threadedly connected to a threaded shaft (5), the bottom center of the threaded shaft (5) is fixedly connected to a first plug column (6), the top end of the outer wall of the first plug column (6) is sleeved with the inner wall of the rubber ring (4), the outer edge of the top of the threaded sleeve (3) is fixedly connected to a limit ring (7), and the outer wall of the limit ring (7) is sleeved with a waterproof cover (8).

3. The method for observing the growth of tree species according to claim 1, characterized in that: A first bracket (9) is fixedly connected to the top of the outer wall of one side of the bottom box (1), first shafts (10) are fixedly connected to both sides of the inner wall of the first bracket (9), the outer wall of the first shaft (10) is rotatably connected to a support plate (11), a second shaft (12) passes through the bottom end of the support plate (11), the front and rear ends of the second shaft (12) are fixedly connected to a second bracket (13), a pad (14) is fixedly connected to the bottom end of the outer wall of one side of the second bracket (13), both ends of the pad (14) are vertically penetrated by a sleeve (15), the inner wall of the sleeve (15) is sleeved with an insert (16), the bottom of the insert (16) is fixedly connected with a second insert column (17), the top of the sleeve (15) is fixedly connected with an external threaded ring (18), and the outer wall of the external threaded ring (18) is threadedly connected with a threaded cover (19).

4. The method for observing the growth of tree species according to claim 1, characterized in that: A hollow box (20) is fixedly connected to the top of the outer wall on the other side of the bottom box (1); spring columns (21) penetrate the center of the front end and rear end of the inner wall of the hollow box (20); a slider (22) is fixedly connected to the opposite surface of the spring column (21); a baffle (23) is fixedly connected to the outer wall on the same side of the slider (22); and a clamping plate (24) is fixedly connected to one end of the outer wall on the same side of the baffle (23).

5. The method for observing the growth of tree species according to claim 4, characterized in that: A slide groove frame (25) is passed through the center of one side of the inner wall of the hollow box (20); one end of the outer wall of the slider (22) is slidably connected to the two ends of the inner wall of the slide groove frame (25); a first L-shaped indicator rod (26) is fixedly connected to the same end of the top of the clamping plate (24); and a first scale bar (27) is fixedly connected to the center of the top of the hollow box (20).

6. The method for observing the growth of tree species according to claim 1, characterized in that: A hollow column (28) is fixedly connected to one end of the top of the bottom box (1), a first dustproof ventilation mesh frame (29) is passed through the front and rear ends of the inner wall of the hollow column (28), and the inner wall of the hollow column (28) is slidably connected to the outer wall of the sliding column (30).

7. The method for observing the growth of tree species according to claim 1, characterized in that: A roller block (31) passes through the bottom end of the outer wall of one side of the slide column (30), a slide groove (32) is opened on one side of the inner wall of the hollow column (28), one end of the outer wall of the roller block (31) is slidably connected to the inner wall of the slide groove (32), and a second scale bar (33) is fixedly connected to the outer wall of the other side of the slide column (30).

8. The method for observing the growth of tree species according to claim 1, characterized in that: A sliding cavity (34) is provided at the center of the top of the sliding column (30), and a ventilation cavity (35) is provided at one end of the bottom of the sliding column (30). The internal space of the sliding cavity (34) is communicated with the internal space of the ventilation cavity (35). A sliding rod (36) is slidably connected to the inner wall of the sliding cavity (34), and a third scale bar (37) is fixedly connected to the outer wall of one side of the hollow column (28). A top block (38) is fixedly connected to the top of the sliding rod (36), and a second L-shaped indicator rod (39) is fixedly connected to one end of the bottom of the top block (38).

9. The method for observing the growth of tree species according to claim 1, characterized in that: A hollow rod (40) is fixedly connected to the outer wall of one side of the top block (38); a second dustproof ventilation mesh frame (41) is penetrated through the front and rear ends of the inner wall of the hollow rod (40); a telescopic rod (42) is slidably connected to the inner wall of the hollow rod (40); a round Velcro (43) is fixedly connected to the front end of the telescopic rod (42); a rubber pad (44) is fixedly connected to the front end of the outer wall of one side of the telescopic rod (42); a telescopic strap (45) is fixedly connected to the rear end of the outer wall of one side of the telescopic rod (42); and one end of the telescopic strap (45) is fixedly connected to the bristle Velcro (46).

Images