Experimental device for saline-alkaline tolerance of ecological restoration plants

Abstract

The utility model provides an ecological restoration plant saline-alkaline tolerance experiment device, and solves the problems that most plant saline-alkaline tolerance experiment devices can only carry out experiments on states of plants in environments with different saline-alkaline properties and are inconvenient to carry out experiments on saline-alkaline tolerance of the plants in the ecological restoration process. The cylinder body and the culture cylinder arranged in the cylinder body are arranged, the through hole is formed in the bottom of the culture cylinder, when the fixing block is arranged in the groove, the lower end of the culture cylinder penetrates out of the first column cavity and extends into the second column cavity, and at the moment, the through hole in the lower end of the culture cylinder is located in the second column cavity; through the arrangement of the through holes, when water is added into the saline-alkali soil in the culture cylinder for a field steeping improvement experiment, the water with salt and alkali can be discharged into the second column cavity through the through holes to be collected, so that the experimental device can perform the experiment on the field steeping improvement of the saline-alkali soil, and the application range of the experimental device is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of plant salt-alkali tolerance experiments, in particular to an ecological restoration plant salt-alkali tolerance experiment device. Background Art

[0002] Saline-alkali soil is a general term for saline soil and alkaline soil, which refers to soil with high content of salt and alkaline substances, which directly inhibits or harms plant growth. The formation of alkaline soil and alkaline soil in my country is mostly related to the accumulation of carbonates in the soil, so the alkalinity is generally high. Plants can hardly survive in severe saline-alkali soil areas. In order to make the restoration of saline-alkali land promote soil ecological balance, special saline-alkali land restoration methods are usually used. The existing saline-alkali land plant ecological restoration methods usually include deep plowing improvement, field soaking improvement, plant improvement and soil improvement. Among them, field soaking improvement refers to irrigating saline-alkali land, soaking for a period of time and then draining, repeating many times until the salinity of the soil is reduced to a level suitable for plant growth; plant improvement, also known as biological improvement, refers to the selection of salt-tolerant plants adapted to saline-alkali conditions to repair saline-alkali land by absorbing salt in the soil and improving soil structure; soil improvement refers to adding amendments to saline-alkali land to improve the soil structure of saline-alkali land and reduce the salt content of the soil, thereby promoting plant growth.

[0003] However, most plant salt-alkali tolerance experimental devices can usually only test the state of plants in different saline-alkali environments. For example, in the prior art, a vine plant salt-alkali tolerance screening experimental device disclosed in the Chinese utility model patent with publication number CN210610458U includes a base, a seedling tray, a support frame and a climbing frame; the support frame is fixedly arranged on the base, and the seedling tray is connected to the support frame; the seedling tray is provided with a seedling cavity inside, and the seedling tray is provided with a first watering port and a second watering port connected to the seedling cavity. The vine plants cultivated in the seedling tray can grow along the climbing frame, the first watering port is used for watering fresh water, and the second watering port is used for watering saline-alkali solution, so that the soil in the seedling cavity forms a saline-alkali soil with a preset salinity, and experiments are conducted to see whether different vine plants can grow in saline-alkali soil with a preset salinity, thereby screening out vine plants that can be planted in saline-alkali land with corresponding salinity. The existing plant salt-alkali tolerance experimental device is not convenient for testing the salt-alkali tolerance of plants in the process of ecological restoration, such as the state change of saline-alkali soil in the process of soaking field improvement. Utility Model Content

[0004] In order to solve the problem that most plant salt-alkali tolerance experimental devices in the background technology can usually only experiment on the state of plants in different saline-alkali environments, and are not convenient for experimenting on the salt-alkali tolerance of plants in the process of ecological restoration, the utility model proposes an ecological restoration plant salt-alkali tolerance experimental device.

[0005] The technical scheme of the utility model is: an ecological restoration plant salt-alkali tolerance experimental device, comprising an experimental device arranged in a plant growth box, the experimental device comprising a cylinder with an upper opening structure, the cylinder comprising a first column cavity and a second column cavity, the upper end of the first column cavity is an opening structure, the horizontal diameter of the second column cavity is larger than the first column cavity, and the second column cavity is connected with the first column cavity up and down, a culture cylinder with an upper opening structure is arranged in the first column cavity, the culture cylinder is filled with experimental saline-alkali soil, the outer surface of the culture cylinder is slidably sealed with the inner wall of the first column cavity, and the lower end of the culture cylinder can pass through the first column cavity and extend into the second column cavity;

[0006] A through hole is provided on the outer peripheral surface of the lower end of the culture tube for discharging water in the culture tube. In the process of discharging water, the salt and alkali dissolved in the water are taken away. A fine filter is provided at the lower end of the culture tube. The fine filter is in a cylindrical structure with an upper opening. The fine filter is located between the experimental saline-alkali soil and the through hole.

[0007] A plurality of grooves are provided at the top of the cylinder, and a plurality of fixing blocks are fixed on the outer peripheral surface of the upper end of the culture cylinder. The lower side of the fixing blocks is abutted against the upper end of the cylinder, and the fixing blocks can be placed in the grooves so that the lower end of the culture cylinder passes through the first column cavity and extends into the second column cavity.

[0008] Preferably, a plurality of supports are fixedly provided on the outer peripheral surface of the lower end of the cylinder.

[0009] Preferably, the culture cylinder comprises a tube which is transparent from top to bottom and a round cover arranged at the opening of the lower end of the tube. The inner wall of the lower end of the tube is provided with an internal thread, and the round cover is arranged on the lower end of the tube through the internal thread.

[0010] Preferably, a plurality of measuring holes which are transparent inside and outside are provided on the culture tube, and the plurality of measuring holes are arranged at intervals along the extension direction of the culture tube.

[0011] Preferably, the culture cylinder is provided with a through groove extending in the up-down direction and being transparent inside and outside.

[0012] Advantages of the utility model: the utility model provides a cylinder body and a culture cylinder arranged in the cylinder body, and provides a through hole at the bottom of the culture cylinder, so that when the lower side of the fixed block is abutted against the upper end of the cylinder body, the outer surface of the culture cylinder is sealed against the inner wall of the first column cavity, and the through hole is closed, so as to facilitate the ordinary plant salt-alkali tolerance experiment; when the fixed block is placed in the groove, the lower end of the culture cylinder passes through the first column cavity and extends into the second column cavity. At this time, the through hole at the lower end of the culture cylinder is located in the second column cavity, so that when water is added to the saline-alkali soil in the culture cylinder to carry out the field soaking improvement experiment, the water with salt and alkali can be discharged into the second column cavity through the through hole for collection, so that the experimental device can carry out experiments on saline-alkali soil in field soaking improvement, thereby improving the scope of application of the experimental device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0015] Figure 2 It is a structural front cross-sectional view of the cylinder in Example 1 of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the incubator in Example 1 of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the incubator in Example 2 of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the incubator in Example 3 of the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the culture device in Example 4 of the utility model.

[0020] In the figure: 1, cylinder; 11, second column cavity; 12, support; 13, groove; 2, culture cylinder; 21, pipe fitting; 22, round cover; 24, measuring hole; 25, through groove; 26, fixing block; 3, fine filter. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1: An ecological restoration plant salt-alkali tolerance experimental device, such as Figure 1-3As shown, it includes a plant experimental device arranged in a plant growth box, and the plant growth box is used to provide a controllable environment for the plant experimental device and the plants arranged on the plant experimental device, including precise adjustment of light, temperature, humidity and gas parameters, so as to facilitate experiments on the salt-alkali resistance of plants in different environments. For technicians in the relevant field, the plant growth box belongs to a well-known technology, so no more details are given; the experimental device includes a cylinder 1 with an upper opening structure, and a plurality of supports 12 are fixedly provided on the outer peripheral surface of the lower end of the cylinder 1. The supports 12 can strengthen the bottom support of the cylinder 1 to prevent the cylinder 1 from tipping over. The cylinder 1 includes a first column cavity and a second column cavity 11. The upper end of the first column cavity is an open structure, and the horizontal diameter of the second column cavity 11 is larger than that of the first column cavity, and the second column cavity 11 is connected with the first column cavity from top to bottom. A culture cylinder 2 with an upper opening structure is provided in the first column cavity, and the culture cylinder 2 is filled with experimental saline-alkali soil. The outer surface of the culture cylinder 2 is slidably sealed with the inner wall of the first column cavity, and the lower end of the culture cylinder 2 can pass through the first column cavity and extend into the second column cavity 11.

[0023] A through hole is provided on the outer peripheral surface of the lower end of the culture cylinder 2 for discharging the water in the cylinder. In the process of water discharge, the salt and alkali dissolved in the water are taken away. A fine filter screen 3 is provided at the lower end of the interior of the culture cylinder 2. The fine filter screen 3 is a cylindrical structure with an upper opening. The fine filter screen 3 is located between the experimental saline-alkali soil and the through hole. The fine filter screen 3 can prevent the saline-alkali soil from flowing out of the through hole during the simulated paddy field improvement experiment, resulting in inaccurate experimental results.

[0024] A plurality of grooves 13 are provided at the top of the cylinder 1, and a plurality of fixing blocks 26 are fixed on the outer peripheral surface of the upper end of the culture cylinder 2. The lower side of the fixing block 26 is abutted against the upper end of the cylinder 1. At this time, the outer surface of the culture cylinder 2 is sealed against the inner wall of the first column cavity, and the through hole is closed to facilitate the ordinary plant salt-alkali tolerance experiment. The fixing block 26 can be placed in the groove 13 so that the lower end of the culture cylinder 2 passes through the first column cavity and extends into the second column cavity 11. At this time, the through hole at the lower end of the culture cylinder 2 is located in the second column cavity 11, so that water with salt and alkali can be discharged into the second column cavity 11 through the through hole for collection, so that the experimental device can experiment on the improvement of saline-alkali soil in soaked fields.

[0025] Embodiment 2, as Figure 4As shown, the difference between this embodiment and the above-mentioned embodiment 1 is that the culture tube 2 includes a tube 21 that is transparent from top to bottom and a round cover 22 arranged at the opening of the lower end of the tube 21, the inner wall of the lower end of the tube 21 is provided with an internal thread, and the round cover 22 is arranged on the lower end of the tube 21 through the internal thread; by setting the culture tube 2 as a tube 21 that is transparent from top to bottom and arranging a detachable round cover 22 at the bottom, after the plant salt-alkali experiment, the round cover 22 at the bottom of the culture tube 2 can be removed to facilitate the removal of the columnar experimental saline-alkali soil in the culture tube 2, thereby facilitating the measurement of salinity and alkalinity of saline-alkali soil at different heights. Compared with directly inserting the measuring instrument from the top of the culture tube 2 to measure the saline-alkali soil at different heights, it can avoid the confusion of the saline-alkali soil during the insertion of the measuring instrument, which affects the measurement results.

[0026] Embodiment 3, as Figure 5 As shown, the difference between this embodiment and the above-mentioned embodiments 1 and 2 is that a plurality of measuring holes 24 which are transparent inside and outside are opened on the culture tube 2, and the plurality of measuring holes 24 are arranged at intervals along the extension direction of the culture tube 2, and the plurality of measuring holes 24 are located between the through holes and the upper end of the culture tube 2, so that when the culture tube 2 is located inside the cylinder body 1, the inner wall of the cylinder body 1 can block the plurality of measuring holes 24, and when it is necessary to measure the salinity and alkalinity of saline-alkali soils at different heights, the culture tube 2 is taken out from the cylinder body 1, and the measurement can be completed by inserting a measuring instrument into the measuring holes 24 at different heights. Compared with the method of taking out the saline-alkali soil and then accurately measuring it in embodiment 2, this method can measure saline-alkali soil with a high water content and which is not convenient to be taken out from the culture tube 2 in the saline-alkali soil soaking field improvement experiment.

[0027] Embodiment 4, as Figure 6 As shown, the difference between this embodiment and the above-mentioned embodiments 1, 2 and 3 is that a through groove 25 extending in the up-down direction and transparent inside and outside is opened on the culture tube 2, so that when the culture tube 2 is located inside the cylinder 1, the inner wall of the cylinder 1 can block the through groove 25. When it is necessary to measure the salinity and alkalinity of saline-alkali soils at different heights, the culture tube 2 is taken out from the cylinder 1, and the measurement can be completed by using a measuring instrument passing through the through groove 25 at any height and inserting it into the experimental saline-alkali soil. Compared with the measurement holes 24 of only a part of the height can be selected in embodiment 3, this method can accurately measure the saline-alkali soil with high water content and which is not convenient to be taken out of the culture tube 2 in the saline-alkali soil soaking field improvement experiment.

[0028] Working principle: When doing a normal plant salt-alkali tolerance experiment, the culture tube 2 is placed in the cylinder 1, so that the lower side of the fixed block 26 at the top of the culture tube 2 is close to the upper end of the cylinder 1, so that the inner wall of the cylinder 1 can block the through hole, so as to facilitate the plant salt-alkali tolerance experiment; when simulating the soaked field improvement experiment, the culture tube 2 is placed in the cylinder 1, so that the fixed block 26 at the top of the culture tube 2 is placed in the groove 13, and the lower end of the culture tube 2 passes through the first column cavity and extends into the second column cavity 11, so that the through hole can be connected with the second column cavity 11, and then the experimental saline-alkali soil is placed in the culture tube 2, and a certain amount of tap water is added into the culture tube 2, so that the tap water takes away part of the salt and alkali when passing through the experimental saline-alkali soil, and then the culture tube 2 is taken out from the cylinder 1 to measure the salinity and alkalinity. By adding tap water for many times and measuring the salinity and alkalinity of the saline-alkali soil, it can be obtained how much proportion of water is needed for the experimental saline-alkali soil of different concentrations to reduce the salinity and alkalinity in the saline-alkali soil to a concentration that can enable plant growth.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An ecological restoration plant salt-alkali tolerance experimental device, characterized by: The experimental device comprises an experimental device arranged in a plant growth box, the experimental device comprises a cylinder (1) with an upper opening structure, the cylinder (1) comprises a first column cavity and a second column cavity (11), the upper end of the first column cavity is an opening structure, the horizontal diameter of the second column cavity (11) is larger than that of the first column cavity, and the second column cavity (11) is connected with the first column cavity from top to bottom, a culture cylinder (2) with an upper opening structure is arranged in the first column cavity, the culture cylinder (2) is filled with experimental saline-alkali soil, the outer surface of the culture cylinder (2) is slidably sealed with the inner wall of the first column cavity, and the lower end of the culture cylinder (2) can pass through the first column cavity and extend into the second column cavity (11); A through hole is provided on the outer peripheral surface of the lower end of the culture cylinder (2) for discharging water in the culture cylinder (2). During the process of discharging the water, the salt and alkali dissolved in the water are taken away. A fine filter screen (3) is provided at the lower end of the interior of the culture cylinder (2). The fine filter screen (3) is in the form of a cylindrical structure with an upper opening. The fine filter screen (3) is located between the experimental saline-alkali soil and the through hole. A plurality of grooves (13) are provided at the top end of the cylinder (1); a plurality of fixing blocks (26) are fixedly provided on the outer peripheral surface of the upper end of the culture cylinder (2); the lower side of the fixing blocks (26) is abutted against the upper end of the cylinder (1); the fixing blocks (26) can be placed in the grooves (13) so that the lower end of the culture cylinder (2) passes through the first column cavity and extends into the second column cavity (11).

2. The ecological restoration plant salt-alkali tolerance experimental device according to claim 1 is characterized by: A plurality of supports (12) are fixedly provided on the outer peripheral surface of the lower end of the cylinder (1).

3. The ecological restoration plant salt-alkali tolerance experimental device according to claim 1 is characterized by: The culture cylinder (2) comprises a tube (21) which is transparent from top to bottom and a round cover (22) arranged at the opening of the lower end of the tube (21). The inner wall of the lower end of the tube (21) is provided with an internal thread, and the round cover (22) is arranged on the lower end of the tube (21) through the internal thread.

4. The ecological restoration plant salt-alkali tolerance experimental device according to claim 1 is characterized by: The culture tube (2) is provided with a plurality of measuring holes (24) which are transparent inside and outside, and the plurality of measuring holes (24) are arranged at intervals along the extension direction of the culture tube (2).

5. The ecological restoration plant salt-alkali tolerance experimental device according to claim 1 is characterized by: The culture cylinder (2) is provided with a through groove (25) extending in the up-down direction and being transparent inside and outside.

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