Experimental device for measuring oxygen generation rate of photosynthesis of aquatic plants

Abstract

The invention belongs to the technical field of photosynthesis intensity determination, and provides an experimental device for determining the photosynthesis oxygen generation rate of aquatic plants. The device comprises a water storage tank and aquatic plants, a partition plate is transversely arranged in the water storage tank, a vertical gas through hole is formed in the partition plate, a first elastic body is arranged in the partition plate, the aquatic plants are arranged on the two sides of the partition plate and fixed to the partition plate, and an oscillation mechanism is arranged below the water storage tank. Aquatic plants can be in a suitable photosynthesis growth environment, so that the overall oxygen generation speed of the experimental device is increased, and photosynthesis oxygen measurement is rapidly completed; illumination conditions of an experimental environment where the experimental device is located are supplemented, illumination is reasonably increased according to needs of aquatic plants, and energy consumption for supplementing illumination is saved; gas accumulation in leaf gaps of the aquatic plants and attachment of bubbles on the surfaces of the aquatic plants are avoided, and the oxygen collection efficiency of the experimental device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of photosynthesis intensity measurement, and provides an experimental device for measuring the oxygen production rate of photosynthesis of aquatic plants. Background Art

[0002] Due to the low average photosynthesis rate of aquatic plants in the natural environment, the efficiency of producing oxygen during the experiment of measuring the photosynthetic oxygen of aquatic plants is low, and due to the airtightness of the device and the attachment of oxygen to the surface of aquatic plants, the efficiency of collecting oxygen produced by photosynthesis of aquatic plants is low. Therefore, the success rate of the experiment of measuring the photosynthetic oxygen of aquatic plants is low in a short time. The prior art KR100548784B1 photosynthesis determination experimental device is provided with a beaker heating holder on one side of the machine body, and the beaker heating holder can be observed through a fixed observation window in a fixed bracket. The light source is to adjust the intensity of the light source according to the light intensity in the measurement experimental device, so that the light is connected to the beaker heating holder at the center of the beaker, and a tube krypton lamp with a horizontal spacing in the horizontal direction is fixed on the bracket. The bottom of the sensor has a lamp holder exhaust fan with the same distance as the horizontal distance of the krypton lamp. The lamp holder exhaust fan is used to release heat in the lamp holder. A heat sensor, a photometer panel of the device body, a display and a photometer range adjuster are coupled with the lamp holder. The beaker heating holder and the beaker are separated by a glass table. The prior art uses a large number of sensors and has a high cost. The inventor believes that there is a large room for improvement in the prior art. Summary of the invention

[0003] The purpose of the present invention is to enable aquatic plants to be in a suitable photosynthetic growth environment, thereby increasing the overall oxygen production rate of the experimental device and quickly completing the determination of photosynthetic oxygen. Secondly, supplement the lighting conditions of the experimental environment in which the experimental device is located, reasonably increase the lighting according to the needs of aquatic plants, improve the photosynthetic efficiency of aquatic plants and save energy consumption for supplementary lighting; oscillate the water body and aquatic plants inside the experimental device to avoid gas accumulation in the gaps between the leaves of aquatic plants and bubbles attached to the surface of aquatic plants, thereby improving the oxygen collection efficiency of the experimental device. To this end, the present invention provides an experimental device for determining the photosynthetic oxygen production rate of aquatic plants, including a water storage tank and aquatic plants, a partition plate is horizontally provided inside the water storage tank, the partition plate is provided with a vertical gas through hole, a first elastomer is provided inside the partition plate, aquatic plants are provided on both sides of the partition plate, the aquatic plants are fixed to the partition plate, and an oscillation mechanism is provided below the water storage tank. A partition plate is used to separate aquatic plants according to the principle of ecological community stratification, so that the aquatic plants are in a suitable photosynthesis growth environment and the space utilization rate inside the water tank is improved, thereby increasing the overall oxygen production efficiency of the aquatic plants and the overall oxygen production speed of the experimental device, quickly collecting sufficient oxygen, and completing the determination of photosynthetic oxygen; an oscillation mechanism is used in conjunction with a partition plate provided with a first elastic body to oscillate the water body and aquatic plants inside the experimental device. Since the partition plate is provided with the first elastic body, the partition plate has a vibration frequency different from that of the water body, and can shake the aquatic plants fixed on the surface of the partition plate, avoiding the accumulation of gas in the gaps between the leaves of the aquatic plants and the bubbles attached to the surface of the aquatic plants, and can fully collect the oxygen produced by all the aquatic plants inside the experimental device, thereby improving the oxygen collection efficiency of the experimental device; the aquatic plants are fixed on both sides of the partition plate, and the aquatic plants can be arranged in an orderly manner to avoid blocking each other from light exposure, and can fully utilize light for photosynthesis, thereby improving the efficiency of photosynthesis of aquatic plants and improving the utilization efficiency of light in the experimental environment.

[0004] Preferably, the experimental device further comprises a light-filling box, the water storage tank is located inside the light-filling box, and the inner surface of the light-filling box is provided with mirror paper and at least two light sources. The mirror paper is used to reflect the light generated by the light source, so that the aquatic plants are adequately illuminated by the light source, thereby improving the photosynthesis rate of the aquatic plants; multiple light sources are used to illuminate the water storage tank, so that the aquatic plants in the water storage tank can receive the light source from multiple angles, thereby increasing the area of ​​the aquatic plants receiving the light source, and improving the overall oxygen production rate of the experimental environment.

[0005] Preferably, the light sources are arranged at intervals in the vertical direction, and the light source density of the upper half of the fill light box is greater than that of the lower half of the fill light box. By arranging the light sources at intervals in the vertical direction, the light is distributed in a gradient manner in the experimental device, so that the aquatic plants near the top of the fill light box can receive stronger light, and the aquatic plants near the bottom of the fill light box can receive weaker light. Since the light intensity of the maximum photosynthesis efficiency of different types of aquatic plants is different, the above arrangement can make the photosynthesis of each type of aquatic plants close to the maximum value, thereby improving the oxygen production efficiency of the aquatic plants inside the experimental device.

[0006] Preferably, the oscillation mechanism includes a second elastic body and a rotating device, one end of the second elastic body abuts the bottom of the water tank, the other end of the second elastic body abuts the rotating device, the second elastic body is located at the center of the rotating device, and the rotating device is in contact with the bottom of the water tank. Under the action of the rotating device and the second elastic body, the experimental device will oscillate slightly, the water in the water tank will oscillate, and due to the different inertia of the water and the partition with the second elastic body, the aquatic plants fixed on the partition will oscillate relative to the water, and the gas in the gap between the leaves of the aquatic plants and the bubbles attached to the surface of the leaves can escape, thereby improving the experimental device's absorption efficiency of the bubbles generated by the photosynthesis of the aquatic plants.

[0007] Preferably, a gas collector and a water inlet pipe are provided at the top of the water storage tank, a filter plate with holes is provided at the connection between the gas collector and the water storage tank, the water inlet pipe passes through the partition plate, and the end of the water inlet pipe is located at the bottom of the water storage tank. A filter plate with holes is provided at the connection between the gas collector and the water storage tank to prevent impurities in the water storage tank from entering the gas collector, and at the same time, tiny bubbles are generated when oxygen passes through the filter plate, which is convenient for observing the oxygen generation rate; one end of the water inlet pipe is located at the bottom of the water storage tank, and the other end is connected to an external water source, and the oxygen generated by the aquatic plants in the experimental device is squeezed into the gas collection device by pumping in new water, which is convenient for quantitative analysis of the oxygen generated by the aquatic plants.

[0008] Preferably, an observation window is provided on the side of the water storage tank, and the field of view of the observation window includes the connection between the gas collector and the water storage tank. The observation window can facilitate qualitative observation of the aquatic plants inside the water storage tank producing oxygen, which is helpful for experimenters to judge the air tightness of the water storage tank and enable the experiment to proceed normally.

[0009] Preferably, the partition includes a first partition, the first partition is located in the upper part of the water tank, the aquatic plants include floating plants, the first partition separates the gas collector and the floating plants, and the floating plants are fixed at the bottom of the first partition. The community stratification principle of ecology is adopted to fix the floating plants with higher light demand at the maximum photosynthesis rate in the upper part of the water tank to improve the photosynthesis rate of the floating plants. Furthermore, the floating plants are fixed in an orderly manner to avoid the floating plants blocking each other from light exposure, thereby improving the photosynthesis rate of the floating plants.

[0010] Preferably, the partition plate further comprises a second partition plate, the second partition plate is located in the lower half of the water storage tank, the aquatic plants further comprise submerged plants, and the second partition plate separates the submerged plants from the floating plants. The second partition plate isolates the submerged plants with lower light requirements when the photosynthesis rate is at the maximum value in the lower half of the water storage tank, thereby increasing the photosynthesis rate of the submerged plants. Furthermore, the submerged plants are fixed in an orderly manner to avoid mutual light shielding between the submerged plants, thereby increasing the photosynthesis rate of the submerged plants.

[0011] Preferably, the gas collector includes a filter tube, and sealing clamps are provided at both ends of the filter tube. The gas collector is provided with a filter tube to filter part of the gas and water vapor in the gas collector except oxygen, thereby improving the purity and dryness of the collected oxygen, and improving the accuracy of quantitative measurement of the volume of oxygen and subsequent experiments; secondly, the observation window can be used to observe whether a tiny water column is generated at the gas collection tube to determine whether the gas in the water tank is fully discharged. The sealing clamp at one end of the filter tube close to the water tank is a water stop clamp to prevent excessive water from entering the gas collector, and the sealing clamp at one end of the filter tube away from the water tank is a spring clamp, which is used to control whether the gas in the filter tube is discharged.

[0012] The present invention provides an experimental device for measuring the photosynthetic oxygen production rate of aquatic plants. The device integrates the principle of ecological community stratification, enables the aquatic plants to be in a suitable photosynthetic growth environment, thereby increasing the overall oxygen production rate of the experimental device and quickly completing the determination of photosynthetic oxygen; supplements the lighting conditions of the experimental environment in which the experimental device is located, reasonably increases the lighting according to the needs of the aquatic plants, improves the photosynthetic efficiency of the aquatic plants and saves the energy consumption of supplementary lighting; targets the water body and aquatic plants inside the experimental device, avoids the accumulation of gas in the leaf gaps of the aquatic plants and the attachment of bubbles to the surfaces of the aquatic plants, improves the oxygen collection efficiency of the experimental device, and has the following beneficial effects: a partition plate is used to separate the aquatic plants according to the principle of ecological community stratification, so that the aquatic plants are in a suitable photosynthetic environment; The invention can improve the growth environment and the space utilization rate inside the water tank, thereby increasing the overall oxygen production efficiency of the aquatic plants and the overall oxygen production speed of the experimental device, quickly collecting sufficient oxygen, and completing the determination of photosynthetic oxygen; the partition plate has a vibration frequency different from that of the water body, which can shake the aquatic plants fixed on the surface of the partition plate, avoid the accumulation of gas in the gaps between the leaves of the aquatic plants and the bubbles attached to the surface of the aquatic plants, and can fully collect the oxygen produced by all the aquatic plants inside the experimental device, thereby improving the oxygen collection efficiency of the experimental device; the aquatic plants are fixed on both sides of the partition plate, and the aquatic plants can be arranged in an orderly manner to avoid blocking each other from light exposure, and can make full use of light for photosynthesis, thereby improving the efficiency of photosynthesis of aquatic plants and improving the utilization efficiency of light in the experimental environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the experimental device of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the experimental device of the present invention; Figure 3 It is a structural schematic diagram of the gas collector of the present invention; Figure 4 It is a schematic cross-sectional structural diagram of the oscillating device at N of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the partition plate at M of the present invention.

[0015] Explanation of the reference numerals: 1 observation window; 2 fill light box; 3 water storage tank; 4 first partition plate; 5 second partition plate; 501 gas through hole; 502 covering plate; 503 first elastomer; 6 oscillation mechanism; 601 second elastomer; 602 rotating device; 7 light source; 8 gas collector; 801 gas hose; 802 spring clip; 803 filter tube; 804 water stop clip; 805 sealing plug; 806 filter plate; 9 water inlet pipe. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Embodiment 1 like Figure 1 As shown, an experimental device for measuring the oxygen production rate of photosynthesis of aquatic plants includes a water storage tank 3 and aquatic plants. An observation window 1 is provided on the side of the water storage tank 3. The field of view of the observation window 1 includes the connection between the gas collector 8 and the water storage tank 3. The observation window 1 can facilitate qualitative observation of the oxygen being produced by the aquatic plants inside the water storage tank 3, which is helpful for the experimenter to judge the air tightness of the water storage tank 3, and the experiment can be carried out normally.

[0018] Combination Figure 2 and Figure 5 As shown, a partition plate is horizontally provided inside the water storage tank 3, and the partition plate is provided with a vertical gas through hole 501, a first elastic body 503 is provided inside the partition plate, and a coating plate 502 is provided on both sides of the first elastic body 503, and aquatic plants are provided on both sides of the partition plate, and the aquatic plants are fixed on the partition plate. An oscillation mechanism 6 is provided below the water storage tank 3, and the partition plate is used to separate the aquatic plants according to the principle of ecological community stratification, so that the aquatic plants are in a suitable photosynthetic growth environment, and the space utilization rate inside the water storage tank 3 is improved, thereby increasing the overall oxygen production efficiency of the aquatic plants and the overall oxygen production speed of the experimental device, quickly collecting sufficient oxygen, and completing the determination of photosynthetic oxygen; the oscillation mechanism 6 is used in conjunction with the The partition plate of the first elastic body 503 oscillates the water body and aquatic plants inside the experimental device. Since the partition plate is provided with the first elastic body 503, the partition plate has a vibration frequency different from that of the water body, and can shake the aquatic plants fixed on the surface of the partition plate, thereby avoiding the accumulation of gas in the gaps between the leaves of the aquatic plants and the bubbles adhering to the surface of the aquatic plants, and can fully collect the oxygen produced by all the aquatic plants inside the experimental device, thereby improving the oxygen collection efficiency of the experimental device; the aquatic plants are fixed on both sides of the partition plate, and the aquatic plants can be arranged in an orderly manner to avoid blocking light exposure from each other, and can fully utilize the light for photosynthesis, thereby improving the efficiency of photosynthesis of the aquatic plants and improving the utilization efficiency of light in the experimental environment.

[0019] The experimental device also includes a light-filling box 2, a water storage tank 3 is located inside the light-filling box 2, and a mirror paper and at least two light sources 7 are provided on the inner surface of the light-filling box 2. The mirror paper is used to reflect the light generated by the light source 7, so that the aquatic plants are adequately illuminated by the light source 7, thereby improving the photosynthesis rate of the aquatic plants; multiple light sources 7 are used to illuminate the water storage tank 3, so that the aquatic plants in the water storage tank 3 can receive the light source 7 from multiple angles, thereby increasing the area of ​​the aquatic plants receiving the light source 7 and improving the overall oxygen production rate of the experimental environment.

[0020] like Figure 2 As shown, the light sources 7 are arranged at intervals in the vertical direction, and the density of the light sources 7 in the upper part of the fill light box 2 is greater than the density of the light sources 7 in the lower part of the fill light box 2. The light sources 7 are arranged at intervals in the vertical direction, so that the light is distributed in a gradient in the experimental device, so that the aquatic plants near the top of the fill light box 2 can receive stronger light, and the aquatic plants near the bottom of the fill light box 2 can receive weaker light. Since the light intensity of the maximum photosynthesis efficiency of different types of aquatic plants is different, the above arrangement can make the photosynthesis of each type of aquatic plants close to the maximum value, thereby improving the oxygen production efficiency of the aquatic plants inside the experimental device.

[0021] like Figure 4 As shown, the oscillation mechanism 6 includes a second elastic body 601 and a rotating device 602, one end of the second elastic body 601 abuts against the bottom of the water storage tank 3, the other end of the second elastic body 601 abuts against the rotating device 602, the second elastic body 601 is located at the center of the rotating device 602, and the rotating device 602 contacts the bottom of the water storage tank 3. Under the action of the rotating device 602 and the second elastic body 601, the experimental device will oscillate slightly, the water in the water storage tank 3 will oscillate, and due to the different inertia of the water and the partition plate with the second elastic body 601, the aquatic plants fixed on the partition plate will oscillate relative to the water, and the gas in the gap between the leaves of the aquatic plants and the bubbles attached to the surface of the leaves can escape, thereby improving the experimental device's absorption efficiency of the bubbles generated by the photosynthesis of the aquatic plants.

[0022] like Figure 1 and Figure 3 As shown, a gas collector 8 and a water inlet pipe 9 are provided on the top of the water storage tank 3, a filter plate 806 with holes is provided at the connection between the gas collector 8 and the water storage tank 3, the water inlet pipe 9 passes through the partition plate, and the end of the water inlet pipe 9 is located at the bottom of the water storage tank 3. The gas collector 8 includes a gas hose 801, a filter tube 803 and a sealing plug 805, the gas hose 801 is connected to the end of the filter tube 803 away from the water storage tank 3, and sealing clamps are provided at both ends of the filter tube 803.

[0023] The gas collector 8 is provided with a filter tube 803 to filter part of the gas and water vapor in the gas collector 8 except oxygen, so as to improve the purity and dryness of the collected oxygen, and improve the accuracy of quantitative measurement of the volume of oxygen and subsequent experiments; secondly, a tiny water column can be generated at the gas collection tube, and the sealing clamp at one end of the filter tube 803 close to the water tank 3 is a water stop clamp 804 to prevent too much water from the water tank 3 from entering the gas collector 8, and judge whether the gas in the water tank 3 is fully discharged, and the sealing clamp at one end of the filter tube 803 away from the water tank 3 is a spring clamp 802, and the spring clamp 802 clamps the gas hose 801 to control whether the gas in the filter tube 803 is discharged. A filter plate 806 with holes and a sealing plug 805 are provided at the connection between the gas collector 8 and the water tank 3 to prevent impurities in the water tank 3 from entering the gas collector 8. At the same time, tiny bubbles are generated when oxygen passes through the filter plate 806, which is convenient for observing the oxygen generation rate. One end of the water inlet pipe 9 is located at the bottom of the water tank 3, and the other end is connected to an external water source. By pumping in new water, the oxygen generated by the aquatic plants in the experimental device is squeezed into the gas collecting device, which is convenient for quantitative analysis of the oxygen generated by the aquatic plants.

[0024] like Figure 2 As shown, the partition plate includes a first partition plate 4, which is located in the upper part of the water storage tank 3. The aquatic plants include floating plants. The first partition plate 4 separates the gas collector 8 and the floating plants. The floating plants are fixed at the bottom of the first partition plate 4. The partition plate also includes a second partition plate 5, which is located in the lower part of the water storage tank 3. The aquatic plants also include submerged plants. The second partition plate 5 separates the submerged plants from the floating plants.

[0025] Through the above arrangement, the ecological community stratification principle is adopted to fix the floating plants with higher light demand at the maximum photosynthesis rate in the upper half of the water storage tank 3, thereby improving the photosynthesis rate of the floating plants. Furthermore, the floating plants are fixed in an orderly manner to avoid the floating plants blocking the light from each other, thereby improving the photosynthesis rate of the floating plants. The second partition plate 5 isolates the submerged plants with lower light demand at the maximum photosynthesis rate in the lower half of the water storage tank 3, thereby improving the photosynthesis rate of the submerged plants. Furthermore, the submerged plants are fixed in an orderly manner to avoid the submerged plants blocking the light from each other, thereby improving the photosynthesis rate of the submerged plants.

[0026] The present invention provides an experimental device for measuring the photosynthetic oxygen production rate of aquatic plants, which integrates the principle of ecological community stratification, enables the aquatic plants to be in a suitable photosynthetic growth environment, thereby increasing the overall oxygen production rate of the experimental device and quickly completing the determination of photosynthetic oxygen; supplements the lighting conditions of the experimental environment in which the experimental device is located, reasonably increases the lighting according to the needs of the aquatic plants, improves the photosynthetic efficiency of the aquatic plants and saves the energy consumption of supplementary lighting; oscillates the water body and aquatic plants inside the experimental device to avoid gas accumulation in the gaps between the leaves of the aquatic plants and bubbles attached to the surfaces of the aquatic plants, thereby improving the oxygen collection efficiency of the experimental device, and has the following beneficial effects: a partition plate is used to separate the aquatic plants according to the principle of ecological community stratification, so that the aquatic plants are in a suitable photosynthetic environment; The growth environment is improved, and the space utilization rate inside the water storage tank 3 is improved, thereby increasing the overall oxygen production efficiency of the aquatic plants and the overall oxygen production speed of the experimental device, quickly collecting sufficient oxygen, and completing the determination of photosynthetic oxygen; the partition plate has a vibration frequency different from that of the water body, which can shake the aquatic plants fixed on the surface of the partition plate, avoid the accumulation of gas in the gaps between the leaves of the aquatic plants and the bubbles attached to the surface of the aquatic plants, and can fully collect the oxygen produced by all the aquatic plants inside the experimental device, thereby improving the oxygen collection efficiency of the experimental device; the aquatic plants are fixed on both sides of the partition plate, and the aquatic plants can be arranged in an orderly manner to avoid blocking light exposure from each other, and can make full use of light for photosynthesis, thereby improving the efficiency of photosynthesis of aquatic plants and improving the utilization efficiency of light in the experimental environment.

[0027] The above embodiments and / or implementation methods are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any technical personnel in this field may make slight changes to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

Claims

1. An experimental device for measuring the oxygen production rate of aquatic plants during photosynthesis, comprising a water storage tank (3) and aquatic plants, characterized in that: A partition plate is transversely arranged inside the water storage tank (3), the partition plate is provided with a vertical gas through hole (501), a first elastic body (503) is arranged inside the partition plate, the aquatic plants are arranged on both sides of the partition plate, the aquatic plants are fixed to the partition plate, and an oscillation mechanism (6) is arranged below the water storage tank (3).

2. The experimental device for measuring the oxygen production rate of aquatic plants during photosynthesis according to claim 1, characterized in that: The experimental device also includes a fill light box (2), the water storage tank (3) is located inside the fill light box (2), and the inner surface of the fill light box (2) is provided with mirror paper and at least two light sources (7).

3. The experimental device for measuring the oxygen production rate of aquatic plants during photosynthesis according to claim 2, characterized in that: The light sources (7) are arranged at intervals in the vertical direction, and the density of the light sources (7) in the upper half of the fill light box (2) is greater than the density of the light sources (7) in the lower half of the fill light box (2).

4. The experimental device for measuring the oxygen production rate of aquatic plants during photosynthesis according to claim 1, characterized in that: The oscillating mechanism (6) comprises a second elastic body (601) and a rotating device (602); one end of the second elastic body (601) abuts against the bottom of the water storage tank (3); the other end of the second elastic body (601) abuts against the rotating device (602); the second elastic body (601) is located at the center of the rotating device (602); and the rotating device (602) is in contact with the bottom of the water storage tank (3).

5. The experimental device for measuring the oxygen production rate of aquatic plants during photosynthesis according to claim 1, characterized in that: A gas collector (8) and a water inlet pipe (9) are provided at the top of the water storage tank (3); a filter plate (806) with holes is provided at the connection between the gas collector (8) and the water storage tank (3); the water inlet pipe (9) passes through the partition plate; and the end of the water inlet pipe (9) is located at the bottom of the water storage tank (3).

6. The experimental device for measuring the oxygen production rate of aquatic plants during photosynthesis according to claim 5, characterized in that: An observation window (1) is provided on the side of the water storage tank (3), and the field of view of the observation window (1) includes the connection between the gas collector (8) and the water storage tank (3).

7. The experimental device for measuring the oxygen production rate of aquatic plants during photosynthesis according to claim 1, characterized in that: The partition plate comprises a first partition plate (4), the first partition plate (4) being located at the upper half of the water storage tank (3), the aquatic plants comprising floating plants, the first partition plate (4) separating the gas collector (8) and the floating plants, and the floating plants being fixed to the bottom of the first partition plate (4).

8. The experimental device for measuring the oxygen production rate of aquatic plants during photosynthesis according to claim 7, characterized in that: The partition plate further comprises a second partition plate (5), the second partition plate (5) being located at the lower half of the water storage tank (3), the aquatic plants further comprising submerged plants, the second partition plate (5) separating the submerged plants from the floating plants.

9. The experimental device for measuring the oxygen production rate of aquatic plants during photosynthesis according to claim 5, characterized in that: The gas collector (8) comprises a filter tube (803), and sealing clamps are provided at both ends of the filter tube (803).

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