Quadrat device for grass and tree community investigation

Abstract

A quadrat device for grass and tree community investigation comprises four quadrat rods, the quadrat rods are configured to be inserted into a grass and tree community investigation area, and at least one quadrat rod comprises a first pivot joint structure; each steel ruler is configured to be connected with the two quadrat rods to enable the quadrat device to be of a quadrat frame structure for quadrat sampling, one end of at least one steel ruler is pivoted to the first pivoting structure, the steel rulers are configured to be switched between a first position and a second position relative to at least one quadrat rod, and when at least one steel ruler is located at the first position, the steel rulers are connected to the quadrat frame structure. And when the at least one steel ruler is located at the first position, the at least one steel ruler is perpendicular to the at least one quadrat rod, and when the at least one steel ruler is located at the second position, the at least one steel ruler is parallel to the at least one quadrat rod. Due to the rigid structures of the quadrat rod and the steel ruler, the quadrat rod and the steel ruler can be spliced into a stable quadrat frame structure, the sampling stability of the quadrat frame is improved, and monitoring errors are reduced. When the steel ruler is located at the second position, the pivoted quadrat rod and the steel ruler reduce the occupied space size and are easy to carry.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vegetation community investigation, in particular to a quadrat device for vegetation community investigation. BACKGROUND

[0002] Vegetation monitoring such as grassland is an important part of natural ecological monitoring. Taking grassland resources as an example, grassland resource and ecological monitoring is an important basic work for grassland protection, construction and rational utilization. Through scientific monitoring, the changes of grassland resources and ecology can be comprehensively, scientifically and accurately reflected, and scientific basis can be provided for macro decision-making of grassland ecological protection construction, and prediction, forecast and early warning of grassland ecological environment. Traditional ground monitoring adopts the principle of random or stratified sampling, randomly designs sampling points on the grassland, sets up a 1m x 1m quadrat frame on site, and counts the dominant species, plant species, number of plants, coverage, biomass, etc. in the quadrat. CONTENT OF THE UTILITY MODEL

[0003] Some embodiments of the present disclosure provide a quadrat device for vegetation community investigation, characterized in that the quadrat device comprises:

[0004] four quadrat rods, the quadrat rods being configured to be inserted into the vegetation community investigation area, at least one quadrat rod comprising a first pivoting structure; and

[0005] four steel rulers, each steel ruler being configured to connect two quadrat rods so that the quadrat device presents a quadrat frame structure for quadrat sampling, one end of at least one steel ruler being pivoted to the first pivoting structure and being configured to switch between a first position and a second position relative to the at least one quadrat rod, when the at least one steel ruler is in the first position, the at least one steel ruler is perpendicular to the at least one quadrat rod, and when the at least one steel ruler is in the second position, the at least one steel ruler is parallel to the at least one quadrat rod.

[0006] In some embodiments, each quadrat rod comprises a first pivoting structure and a first clamping structure, the first pivoting structure and the first clamping structure being arranged at an interval of 90 degrees in the circumferential direction of the outer wall of the quadrat rod,

[0007] each steel ruler has a second pivoting structure at one end, which is pivoted to the first pivoting structure, and has a second clamping structure at the other end, which is configured to be detachably connected to the first clamping structure.

[0008] In some embodiments, the first pivoting structure and the first clamping structure on the same quadrat rod are equidistant from the top end of the same quadrat rod.

[0009] In some embodiments, the four quadrat rods comprise a first pair of quadrat rods and a second pair of quadrat rods,

[0010] Each quadrat rod in the first pair of quadrat rods comprises two first pivot structures, which are arranged at an interval of 90 degrees in the circumferential direction of the outer wall of the quadrat rod,

[0011] Each quadrat rod in the second pair of quadrat rods comprises two first clamping structures, which are arranged at an interval of 90 degrees in the circumferential direction of the outer wall of the quadrat rod,

[0012] Each quadrat rod in the first pair of quadrat rods corresponds to two steel rulers, one end of each of the two steel rulers is provided with a second pivot structure and is pivotally connected to the two first pivot structures respectively, and the other end of each of the two steel rulers is provided with a second clamping structure and is configured to be detachably connected to the first clamping structure of the second pair of quadrat rods.

[0013] In some embodiments, the distance between the two first pivot structures and the top end of the quadrat rod on which the two first pivot structures are located is equal to the distance between the two first clamping structures and the top end of the quadrat rod on which the two first clamping structures are located.

[0014] In some embodiments, each quadrat rod comprises:

[0015] A telescopic rod configured to be adjustable in length; and

[0016] A ground insertion rod, one end of which is detachably connected to one end of the telescopic rod.

[0017] In some embodiments, one end of at least one telescopic rod is provided with a clamping member configured to clamp the at least one steel ruler at a second position.

[0018] In some embodiments, at least one telescopic rod comprises a first telescopic section and a second telescopic section, and the first telescopic section and the second telescopic section are connected through a telescopic buckle.

[0019] In some embodiments, the quadrat device further comprises a protective sleeve configured to be sleeved on the ground insertion rod.

[0020] In some embodiments, the protective sleeve comprises:

[0021] A protective sleeve body;

[0022] A resilient clamp arranged at the top of the protective sleeve and configured to tighten the outer wall of the ground insertion rod

[0023] The above-mentioned solutions of the embodiments of the present disclosure can have the following beneficial effects:

[0024] The quadrat device for plant community investigation is composed of four quadrat rods and four steel bars, at least one of the quadrat rods is pivotally connected with at least one of the steel bars through a first pivot connection structure. The steel bar pivotally connected with the quadrat rod can be switched between a first position perpendicular to the quadrat rod and a second position parallel to the quadrat rod. When the steel bar is in the first position, due to the rigid structure of the quadrat rod and the steel bar, the four quadrat rods and the four steel bars are spliced into a stable quadrat frame structure, which improves the sampling stability of the quadrat frame and reduces the monitoring error. When the steel bar is in the second position, the pivotally connected quadrat rod and steel bar reduce the occupied space size and are easy to carry. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings incorporated by reference in the specification and forming a part thereof, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. It is apparent that the drawings described below are only some embodiments of the present disclosure, and other drawings can be obtained by those of ordinary skill in the art without creative labor on the basis of these drawings. In the drawings:

[0026] Figure 1 The quadrat device for plant community investigation provided by some embodiments of the present disclosure, wherein the quadrat device is in a spliced state;

[0027] Figure 2 The exploded structural schematic diagram of the connection relationship between the quadrat rod and the steel bar provided by some embodiments of the present disclosure;

[0028] Figure 3 The exploded structural schematic diagram of the connection relationship between the quadrat rod and the steel bar provided by some embodiments of the present disclosure;

[0029] Figure 4 The structural schematic diagram of the ground insertion rod with a protective sleeve provided by some embodiments of the present disclosure. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present disclosure clearer, the present disclosure will be described in further detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present disclosure, but not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present disclosure.

[0031] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. The singular forms "a", "said" and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Multiple" generally includes at least two.

[0032] It should be understood that the term "and / or" as used herein merely describes an associated relationship, which means that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0033] It should be understood that although the terms first, second, third, etc. can be used in the embodiments of the present disclosure to describe, but should not be limited to these terms.

[0034] It should also be noted that the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, so that the product or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such product or device. Without more limitations, the element defined by the statement "comprises one" does not exclude the presence of another identical element in the product or device comprising the element.

[0035] The following problems exist in the herb community quadrat investigation device used in the related art: (1) The simple device composed of a steel drill, a tape measure and a hook has simple structure, but the fixed effect is not good due to the elastic force of the tape measure itself and the single steel drill inserted into the soil, and the device is easily deformed, resulting in large measurement error. (2) The fixed quadrat frame formed by welding an iron wire has simple structure, but is not easy to fix and disassemble, resulting in inconvenience in carrying, easy deformation and large error. (3) The folding quadrat frame cannot be fixed, the quadrat frame has no scale and is not easy to measure, there are many connecting parts, which are easily lost in the field and malfunction. (4) The photographic quadrat is composed of a support, a camera and a data line, and has complicated assembly, the camera is not easy to balance, the device is many and heavy, and is not convenient to carry and use in the field. In summary, the herb and shrub community quadrat investigation device currently has the problems of inconvenient carrying, non-detachable, non-fixing, complicated operation, large error and inability to measure plant height.

[0036] In order to overcome the above problems, improve the efficiency and accuracy of field investigation of herbaceous and shrub plant communities, and reduce the burden of investigators, the present disclosure provides a quadrat device for herb and wood community investigation, which is convenient to carry, accurate to measure, diverse in function, easy to operate and less prone to failure. The quadrat device comprises four quadrat rods configured to be inserted into the herb and wood community investigation area, at least one of which comprises a first pivoting structure; and four steel rulers, each of which is configured to connect two quadrat rods so that the quadrat device assumes a quadrat frame structure for sampling, one end of at least one of the steel rulers is pivoted to the first pivoting structure and is configured to switch between a first position and a second position relative to the at least one quadrat rod, when the at least one steel ruler is in the first position, it is perpendicular to the at least one quadrat rod, and when the at least one steel ruler is in the second position, it is parallel to the at least one quadrat rod.

[0037] In the present disclosure, the quadrat device for herb and wood community investigation is composed of four quadrat rods and four steel rulers, at least one of which is pivoted to at least one steel ruler through a first pivoting structure. The steel ruler pivoted to the quadrat rod can be switched between a first position perpendicular to the quadrat rod and a second position parallel to the quadrat rod, and when the steel ruler is in the first position, due to the rigid structure of the quadrat rod and the steel ruler, the four quadrat rods and the four steel rulers are spliced into a stable quadrat frame structure, improving the stability of quadrat frame sampling and reducing monitoring errors. When the steel ruler is in the second position, the pivoted quadrat rod and steel ruler reduce the size of the occupied space, making it easy to carry.

[0038] The optional embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0039] Figure 1 The quadrat device for herb and wood community investigation provided by some embodiments of the present disclosure is in a spliced state. Figure 2 The exploded structural schematic diagram of the connection relationship between the quadrat rod and the steel ruler provided by some embodiments of the present disclosure is shown in Figure 3 The exploded structural schematic diagram of the connection relationship between the quadrat rod and the steel ruler provided by some embodiments of the present disclosure is shown in Figure 2 and Figure 3 The quadrat rod in the above-mentioned figures only shows a partial structure, and only two quadrat rods and one steel ruler are shown.

[0040] In some embodiments, as shown in Figures 1 to 3 The quadrat device for herb and wood community investigation provided by some embodiments of the present disclosure is shown in FIG. 1, which comprises four quadrat rods 10 and four steel rulers 20, the quadrat rods 10 are configured to be inserted into the herb and wood community investigation area, at least one of the quadrat rods 10 comprises a first pivoting structure 31, for example, a pivoting hook, as shown in Figure 2 and Figure 3The steel ruler 20 is, for example, a rigid ruler 1 m long.

[0041] Each of the four steel rulers 20 is configured to connect two quadrat rods 10 so that the quadrat device presents a quadrat frame structure for quadrat sampling, as shown in Figure 1 As shown, one end of at least one steel ruler 20 is pivotally connected to the first pivot structure 31 and is configured to switch between a first position and a second position relative to the at least one quadrat rod 10, when the at least one steel ruler 20 is in the first position, the at least one steel ruler 20 is perpendicular to the at least one quadrat rod 10, when the at least one steel ruler 10 is in the second position, the at least one steel ruler 20 is parallel to the at least one quadrat rod 10.

[0042] When the four quadrat rods 10 and the four steel rulers 20 are connected to present a quadrat frame structure for quadrat sampling, as shown in Figure 1 Each steel ruler 20 connects two quadrat rods 10, and the steel ruler 20 pivotally connected to the quadrat rod 10 switches to the first position, due to the rigid structure of the steel ruler 20 and the quadrat rod 10, the connection to present a quadrat frame structure for quadrat sampling is stable, and the monitoring error is small. When the quadrat device 100 is folded for carrying, the quadrat frame structure is disassembled by the four quadrat rods 10 and the four steel rulers 20, and the steel ruler 20 pivotally connected to the quadrat rod 10 switches to the second position, both of which reduce the occupied space size and are easy to carry.

[0043] In some embodiments, as shown in Figure 2 Each quadrat rod 10 includes a first pivot structure 31, such as a pivot hook, and a first clamping structure 41, such as a clamping groove, which are arranged at an interval of 90 degrees in the circumferential direction of the outer wall of the quadrat rod 10. One end of each steel ruler 20 has a second pivot structure 32, such as a pivot hole, pivotally connected to the first pivot structure 31, so that the steel ruler 20 can be pivotally connected to the quadrat rod 10. The other end of each steel ruler 20 has a second clamping structure 42, such as a clamping protrusion, configured to be detachably connected to the first clamping structure 41.

[0044] The four steel rulers 20 are respectively pivotally connected to the four quadrat rods 10, when it is needed to present a quadrat frame structure for quadrat sampling, the four steel rulers 20 are respectively adjusted to the first position relative to the quadrat rod 10 where they are located, and are connected to the adjacent quadrat rod 10 by the clamping of the first clamping structure 41 and the second clamping structure 42, forming a stable quadrat frame structure.

[0045] In some embodiments, as shown in Figure 2As shown, the first pivot joint structure 31 and the first clamping structure 41 on the same quadrat rod 10 are equidistant from the top end of the same quadrat rod 10. The four quadrat rods 10 are completely identical in structure, and the four steel rulers 20 are also completely identical in structure. When they are spliced into a quadrat frame structure, they do not need to be distinguished and are convenient to assemble.

[0046] In some embodiments, as shown in Figure 1 and Figure 3 As shown, the four quadrat rods 10 include a first pair of quadrat rods 10a and a second pair of quadrat rods 10b. Each pair of quadrat rods 10b is located at a diagonal position of the quadrat frame structure for presenting quadrat sampling.

[0047] Each quadrat rod in the first pair of quadrat rods 10a includes two first pivot joint structures 31, which are arranged at an interval of 90 degrees in the circumferential direction of the outer wall of the quadrat rod. Each quadrat rod in the second pair of quadrat rods 10b includes two first clamping structures 41, which are arranged at an interval of 90 degrees in the circumferential direction of the outer wall of the quadrat rod.

[0048] Each quadrat rod in the first pair of quadrat rods 10a corresponds to two steel rulers 20, one end of each of the two steel rulers 20 is provided with a second pivot joint structure 32, which is pivotally connected to the two first pivot joint structures 31, respectively, and the other end of each of the two steel rulers 20 is provided with a second clamping structure 42, which is configured to be detachably connected to the first clamping structure 41 of the second pair of quadrat rods 10b.

[0049] The four steel rulers 20 are pivotally connected to the first pair of quadrat rods 10a, wherein two steel rulers 20 are pivotally connected to each quadrat rod. When it is necessary to present a quadrat frame structure for quadrat sampling, the four steel rulers 20 are adjusted to a first position relative to the quadrat rod on which they are located, and are connected to the second pair of quadrat rods 10b by the clamping of the first clamping structure 41 and the second clamping structure 42, thereby forming a stable quadrat frame structure.

[0050] In some embodiments, as shown in Figure 3 The distance between the two first pivot joint structures 31 and the top end of the quadrat rod on which they are located is equal to the distance between the two first clamping structures 41 and the top end of the quadrat rod on which they are located.

[0051] In some embodiments, as shown in Figure 1 Each quadrat rod 10 includes a telescopic rod 11 and a ground insertion rod 12. The telescopic rod 11 is configured to be adjustable in length, so that the height of the spliced quadrat frame is adjustable. The end of the ground insertion rod 12 away from the sharp tip is detachably connected to one end of the telescopic rod 11, for example, by screw connection. The ground insertion rod 12 with the sharp tip inserted into the ground can be detached from the telescopic rod 11, which is convenient for carrying.

[0052] In some embodiments, asFigure 1 As shown, at least one telescopic rod 11 has a clamping piece 13 configured to clamp the at least one steel ruler 20 located at the second position. Specifically, the end of the telescopic rod 11 of the quadrat rod 10 provided with the first pivot structure 31 is provided with the clamping piece 13 for clamping the steel ruler 20 pivoted to the quadrat rod 10 and located at the second position, so that the quadrat rod 10 and the corresponding pivoted steel ruler 20 are relatively fixedly arranged, facilitating carrying.

[0053] In some embodiments, as shown in Figure 1 As shown, the at least one telescopic rod 11 includes a first telescopic section 111 and a second telescopic section 112 connected through a telescopic buckle 113. Two adjacent telescopic sections can be adjusted in length continuously or discretely by adjusting the telescopic buckle to adjust the overlapping part of the two telescopic sections.

[0054] Figure 4 The structural diagram of the ground insertion rod with a protective sleeve provided by some embodiments of the present disclosure is shown in Figure 4 As shown, the quadrat device 100 further includes a protective sleeve 50 configured to be sleeved on the ground insertion rod 12 to eliminate the potential danger caused by the sharp end of the ground insertion rod 12. As shown in Figure 4 The threaded connector 121 at the end of the ground insertion rod 12 is used to connect the telescopic rod 11 to form the quadrat rod 10.

[0055] In some embodiments, as shown in Figure 4 As shown, the protective sleeve 50 includes a protective sleeve body 51 configured to be sleeved on the sharp end of the ground insertion rod 12 and an elastic clamp 52 arranged at the top of the protective sleeve 51 and configured to tighten the outer wall of the ground insertion rod 12 to prevent the protective sleeve 50 from being detached from the ground insertion rod 12.

[0056] Finally, it should be noted that: the embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to. For the system or device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant part can be referred to the method part.

[0057] The above embodiments are only used to illustrate the technical solutions of the present disclosure, but not limit it; although the foregoing disclosure has been described in detail, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A quadrat device for investigating vegetation communities, characterized in that, The quadrat apparatus includes: Four quadrature poles, configured to be inserted into the vegetation community survey area, wherein at least one quadrature pole includes a first pivot structure; and Four steel rulers, each configured to connect two quadrat rods to form a quadrat frame structure for quadrat sampling, are used. At least one end of a steel ruler is pivotally connected to the first pivot structure and configured to switch between a first position and a second position relative to the at least one quadrat rod. When the at least one steel ruler is in the first position, it is perpendicular to the at least one quadrat rod. When the at least one steel ruler is in the second position, it is parallel to the at least one quadrat rod.

2. The quadrat device for investigating vegetation communities according to claim 1, characterized in that, Each quadrat includes a first pivot structure and a first snap-fit ​​structure, the first pivot structure and the first snap-fit ​​structure being spaced 90 degrees apart in the circumferential direction on the outer wall of the quadrat. Each steel ruler has a second pivot structure at one end, pivotally connected to the first pivot structure, and a second snap-fit ​​structure at the other end, configured to be detachably connected to the first snap-fit ​​structure.

3. The quadrat device for investigating vegetation communities according to claim 2, characterized in that, The first pivot structure and the first snap-fit ​​structure located on the same square rod are equidistant from the top end of the same square rod.

4. The quadrat device for investigating vegetation communities according to claim 1, characterized in that, The four quadrature rods include a first pair of quadrature rods and a second pair of quadrature rods. Each of the first pair of quadrature rods includes two first pivot joints, which are spaced 90 degrees apart on the outer wall of the quadrature rod. Each of the second pair of quadrature rods includes two first snap-fit ​​structures, which are spaced 90 degrees apart on the outer circumferential surface of the quadrature rod. Each of the first pair of quadrature rods corresponds to two steel rulers. One end of each steel ruler has a second pivot structure, which is pivotally connected to two first pivot structures respectively. The other end of each steel ruler has a second snap-fit ​​structure, which is configured to be detachably connected to the first snap-fit ​​structure of the second pair of quadrature rods.

5. The quadrat device for investigating vegetation communities according to claim 4, characterized in that, The distances between the two first pivot structures and the top of the quadrature rod are equal to the distances between the two first snap-fit ​​structures and the top of the quadrature rod.

6. The quadrat apparatus for herbaceous community surveys according to any one of claims 1 to 5, characterized in that, Each of the quadrat rods includes: Telescopic pole, configured with adjustable length; and The grounding rod has its end furthest from the tip detachably connected to one end of the telescopic rod.

7. The quadrat device for investigating vegetation communities according to claim 6, characterized in that, At least one end of the telescopic rod has a fastener configured to secure the at least one steel ruler located in a second position.

8. The quadrat device for investigating vegetation communities according to claim 6, characterized in that, At least one telescopic rod includes a first telescopic section and a second telescopic section, which are connected by a telescopic buckle.

9. The quadrat device for investigating vegetation communities according to claim 6, characterized in that, The aforementioned quadrat apparatus also includes a protective sleeve, configured to cover the ground insertion rod.

10. The quadrat device for herbaceous community surveys according to claim 9, characterized in that, The protective sleeve includes: The protective sleeve itself; An elastic clip is provided at the top of the protective sleeve and configured to tighten the outer wall of the grounding rod.

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