Quadrat device for investigating shrub and grass cluster communities in stone mountains

Abstract

The utility model discloses a stone mountain shrub grass cluster community investigation quadrat device, which comprises a support column, a quadrat frame, a connecting mechanism and a base, the length of the support column is adjustable, and the connecting mechanism comprises four angle-adjustable three-way pipe sleeves. The included angle between the two-way pipe sleeves in the three-way pipe sleeve is 90 degrees, the two-way pipe sleeves are connected with telescopic quadrat strips to form a square quadrat frame, the included angle between the third-way pipe sleeve in the three-way pipe sleeve and the other two-way pipe sleeves is adjustable, and the third-way pipe sleeve in the three-way pipe sleeve is connected with a supporting column; the base is a square block, a plurality of ground nails are arranged on the square block, and the bottom end of the supporting column can be inserted into the square block. The adjustability of the whole device is increased through the connecting mechanism, the horizontal state of the quadrat frame can be adjusted according to the actual situation of a site, and scientists can conduct field investigation more conveniently; in addition, the size of the quadrat frame can be rapidly and conveniently adjusted, rapid installation and adjustment of the device in practical application are facilitated, and precision and flexibility are high; therefore, the reading is more accurate, and the experiment precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plant community investigation, and in particular relates to a plot device for investigating rocky mountain shrub and grass communities. Background Art

[0002] Rocky mountain shrub and grass communities are an important part of the ecosystem and are of great significance to the protection and restoration of the ecological environment. In forestry surveys, the investigation of the characteristics of rocky mountain shrub and grass communities is an indispensable item. However, the terrain of rocky mountains is usually rugged, with cliffs, steep slopes and other landforms; the vegetation is usually very dense, including grass, shrubs and trees; the soil types are very diverse, including rocks, gravel, sand and clay; rocky mountain areas are usually more dangerous and may have risks such as collapse and landslides. The traditional rocky mountain shrub and grass community survey sample frame device has the problems of being inconvenient to carry, difficult to fix, cumbersome installation and operation, and large errors, which requires a lot of manpower and time. For example, the Chinese utility model with the authorization announcement number CN 217359051U discloses a portable sample plot setting device for surveying degraded grassland plants in high-cold areas, which includes a vertical pole, a square frame and an assembly pole. By optimizing the setting of the fixing assembly under the square frame, it is conducive to reinforcing the installation and fixation of the vertical pole, reducing the collapse of the vertical pole caused by some external conditions, increasing the stability of the device, and facilitating the storage of the sharp cone head to prevent the user from accidentally touching the sharp cone head and causing injury, which greatly reduces the danger caused by the sharp part of the device. By optimizing the setting of the height adjustment device at the top of the vertical pole, the height of the device can be adjusted according to the actual situation of the sampling site, avoiding the ineffective installation of the sample plot device due to the dense and complex vegetation in the environment, which affects the investigation. The sample plot size of this patent is fixed, which is not only inconvenient to install, but also cannot flexibly change the size of the sample plot according to actual applications; and on slopes, it is not easy to effectively ensure the horizontal state of the sample plot. Summary of the invention

[0003] In view of the shortcomings of the above problems, the purpose of the utility model is to provide a sampling device for investigating rocky mountain shrub and grass communities, which is easy to ensure the horizontal state of the sampling plot and can adjust the size and height of the sampling plot.

[0004] In order to solve the above problems, the utility model is implemented through the following technical solutions:

[0005] A sampling device for investigating rocky mountain shrub and grass communities comprises a pillar and a sampling frame, wherein the length of the pillar is adjustable, and the device further comprises a connecting mechanism and a base, wherein the connecting mechanism comprises four three-way pipe sleeves with adjustable angles, wherein two of the three-way pipe sleeves have an angle of 90° and are both connected to retractable sampling strips to form a square sampling frame, and the angle between the third of the three-way pipe sleeves and the other two of the three-way pipe sleeves is adjustable and connected to the pillar; the base is a block and a plurality of ground nails are provided on the block, and the bottom end of the pillar can be inserted into the block.

[0006] Preferably, in order to flexibly adjust the size of the sample square frame according to actual applications, the sample square strip is a graduated tube set on a scale, and each scale unit is a telescopic unit.

[0007] Preferably, in order to more conveniently adjust the device and ensure that the sample square frame is in a horizontal state, a level is provided on the sample square bar.

[0008] Preferably, a guide rail is provided inside the sample strip along its length direction, and the retractable small sample strips can be inserted into the guide rails on the sample strips on opposite sides and can move along the guide rails, and the small sample strips in the horizontal and vertical rows are staggered up and down. The small sample strips in the horizontal and vertical rows form a small sample frame, so that the sample frame can be refined so as to mark the plants in the sample area more finely.

[0009] Preferably, in order to facilitate the disassembly, assembly and movement of the small sample square bar, pulleys are provided at both ends of the small sample square bar.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. The connection mechanism increases the adjustability of the entire device. The sample box can adjust its horizontal state according to the actual situation of the site, which is more convenient for scientists to conduct field surveys. In addition, the sample box can be quickly and conveniently adjusted in size, which is convenient for rapid installation and adjustment of the device in actual application, with high accuracy and flexibility; making the reading more accurate, thereby improving the accuracy of the experiment.

[0012] 2. The height of the pillar can be adjusted, and the sample frame can adjust its height according to actual application to meet actual needs; the precise connection design between the base and the pillar ensures the stability of the device during use.

[0013] 3. Multiple movable small sample strips are set in the sample frame, and then the sample is subdivided into several small sample plots, which improves the accuracy of the sample setting and thus improves the accuracy of plant statistics in the sample plot; at the same time, it increases the diversity and flexibility of marking plants in the survey sample plot.

[0014] 4. Use the connecting mechanism to connect multiple sample strips together to form a sample frame. The sample strips and the three-way pipe sleeves are plug-in-matched, which makes it more convenient to disassemble and assemble the sample frame; and other connecting parts are also plug-in-matched and the sample strips are retractable, making the device easy to install and disassemble and convenient to carry.

[0015] 5. Wide application scope: The sample box is suitable for investigating the situation of rocky mountain shrub and grass communities, but its scope of use is not limited to this. Because of its height adjustability, adjustable sample box size, ability to build small sample boxes and installation stability, it is more convenient and accurate, so it can be applied to the needs of more occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a sampling device for investigating rocky mountain shrub and grass communities.

[0017] Reference numerals:

[0018] 1. Pillar, 2. Sample square frame, 3. Three-way pipe sleeve, 4. Base, 5. Sample square bar, 6. Small sample square bar, 7. Guide rail, 8. Level. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the utility model more clear, the utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 As shown, the utility model discloses a sampling device for investigating rocky mountain shrub and grass community, comprising a pillar 1, a sampling frame 2, a connecting mechanism and a base 4. The connecting mechanism comprises four three-way pipe sleeves 3 with adjustable angles, and the three-way pipe sleeves 3 are preferably plastic parts, and of course they can also be made of other materials. The four three-way pipe sleeves 3 constitute the four corners of the sampling frame 2. The angle between the two horizontally arranged pipe sleeves in each three-way pipe sleeve 3 is 90°, and the two pipe sleeves are connected to the retractable sampling strip 5 to form a square sampling frame 2. The angle between the third pipe sleeve 3, i.e., the vertical pipe sleeve and the other two pipe sleeves in the three-way pipe sleeve 3 is adjustable, and the third pipe sleeve 3 is connected to the pillar 1. The pillar 1 is a telescopic column with adjustable length, such as the handle of a folding umbrella. The base 4 is a metal square to increase weight and thus stability; a plurality of ground nails are connected to the square, and when installed, the ground nails are inserted into the soil; the bottom end of the pillar 1 is inserted into the square by plugging.

[0021] The sample strip 5 is in the shape of a retractable round strip with adjustable length, and the sample strip 5 is a graduated tube set on a scale, and each graduated unit is a retractable unit. Through holes are evenly drilled on the upward surface of the graduated tube, and the through holes are used for positioning, and its implementation structure is like the handle of a folding umbrella. A level 8 is provided on the outer surface of the position where the sample strip 5 has no through holes, and the horizontal state of the sample frame 2 can be quickly adjusted when the sample frame 2 is installed.

[0022] A guide rail 7 is provided inside the sample strip 5 along its length direction, and the positions of the guide rails 7 provided on the sample strips 5 in the transverse and longitudinal directions are slightly staggered up and down. A plurality of retractable small sample strips 6 can be inserted into the guide rails 7 on the sample strips 5 on opposite sides and can move along the guide rails 7. The small sample strips 6 in the transverse and longitudinal columns are staggered up and down. Because the small sample strips 6 are in the shape of thin strips, the setting can be an elastic thin wire. At this time, pulleys are provided at both ends of the small sample strips 6, that is, pulleys are tied at both ends of the thin wire, and the pulleys are detachably installed on the guide rails 7. The up and down misalignment of the small sample strips 6 can be ignored, forming a small sample frame.

[0023] The installation process of the utility model is as follows: during installation, determine the survey area specifications according to the survey sample requirements, determine the position of the pillar 1 according to the distribution of the plant community, place the block, and insert the ground nails to reinforce the block. Then insert the pillar 1 into the block, and preliminarily set the height of each pillar 1 according to the terrain of the plant community distribution. Then put the three-way pipe sleeve 3 on the top of the pillar 1, insert a sample strip 5 into each three-way pipe sleeve 3, and then stretch the sample strip 5 to insert it into the adjacent three-way pipe sleeve 3 to form a sample frame 2. Refer to the level 8 to adjust the length of each pillar 1 and the angle of the vertical three-way pipe sleeve 3 to ensure that the sample frame 2 is in a horizontal state. When more detailed marking of the plant community is required, insert the small sample strip 6 into the guide rail 7, and move the small sample strip 6 according to the scale on the sample strip 5 to form a small sample frame.

[0024] The above embodiments are only specific examples for further illustrating the purpose, technical scheme and beneficial effects of the utility model, and the utility model is not limited thereto. Any modification, equivalent replacement, improvement, etc. made within the scope of the disclosure of the utility model are included in the protection scope of the utility model.

Claims

1. A sampling device for investigating rocky mountain shrub and grass communities, comprising a support (1) and a sampling frame (2), wherein the length of the support (1) is adjustable, and characterized in that: It also comprises a connection mechanism and a base (4), wherein the connection mechanism comprises four three-way pipe sleeves (3) with adjustable angles, two of the three-way pipe sleeves (3) have an included angle of 90° and are both connected to a retractable sample square strip (5) to form a square sample square frame (2), and the third of the three-way pipe sleeves (3) has an adjustable included angle with the other two of the three-way pipe sleeves and is connected to the support (1); the base (4) is a square block and a plurality of ground nails are provided on the square block, and the bottom end of the support (1) can be inserted into the square block.

2. A sampling device for investigating rocky mountain shrub and grass communities according to claim 1, characterized in that: The sample strip (5) is a graduated tube arranged on a scale, and each scale unit is a telescopic unit.

3. The sampling device for investigating rocky mountain shrub and grass communities according to claim 1, characterized in that: A level (8) is provided on the quadrat strip (5).

4. A sampling device for investigating rocky mountain shrub and grass communities according to any one of claims 1 to 3, characterized in that: A guide rail (7) is provided on the inner side of the sample strip (5) along its length direction, and the retractable small sample strips (6) can be inserted into the guide rails (7) on the sample strips (5) on opposite sides and can move along the guide rails (7), and the small sample strips (6) in the horizontal and vertical rows are staggered up and down.

5. The sampling device for investigating rocky mountain shrub and grass communities according to claim 4, characterized in that: Pulleys are provided at both ends of the small sample square bar (6).

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