CN113447635B - Potted plant soil greenhouse gas release rate measuring device with different depths - Google Patents
Potted plant soil greenhouse gas release rate measuring device with different depths Download PDFInfo
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- CN113447635B CN113447635B CN202110512359.7A CN202110512359A CN113447635B CN 113447635 B CN113447635 B CN 113447635B CN 202110512359 A CN202110512359 A CN 202110512359A CN 113447635 B CN113447635 B CN 113447635B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
Abstract
The invention discloses a potted soil greenhouse gas release rate measuring device with different depths, which comprises: the flowerpot is provided with transverse bottle holes and probe holes at intervals along the depth direction; a transverse bottle mounted in the transverse bottle aperture; the body of the transverse bottle is positioned in the flowerpot, the bottle mouth is positioned outside the flowerpot, the body is placed in soil when the flowerpot is covered with soil, and the wall of the bottle is contacted with surrounding soil; the circumferential surface of the bottle body positioned in the flowerpot is provided with ventilation holes; the water absorbing piece is arranged in the body of the transverse bottle; and the temperature and humidity probe is inserted into the probe hole and used for measuring the temperature and humidity of soil in the flowerpot. Through the mode of opening the hole on the flowerpot wall, the problem of survey deep soil greenhouse gas release under the condition of hardly disturbing soil is solved, simultaneously through the design of the sponge that absorbs water, ingenious solution potted plant soil sample and deep soil sample's problem. Is very beneficial to the research and experiment of the release rule of the greenhouse gases of the soil at different soil depths and the occurrence mechanism thereof.
Description
Technical Field
The invention relates to a potted plant experimental soil gas collection device, in particular to a potted plant soil greenhouse gas release rate measuring device with different depths.
Background
In the global warming context, greenhouse gas release studies are critical to assess and predict future global climate change trends. Soil is the most important source of greenhouse gases, and the release rate of the greenhouse gases (carbon dioxide, methane, nitrous oxide, etc.) has been a problem of hot spots. The soil surface layer greenhouse gas collection device is more researched, but because of the problems of difficult actual operation in soil and disturbance to soil solid, liquid and gas phases, huge technical difficulties exist in the measurement of soil greenhouse gas release rates at different depths all the time, and in addition, researchers need to monitor the soil temperature, soil humidity, soil physicochemical properties, soil microbial community, microbial biomass and other indexes of the corresponding soil depths when explaining the occurrence mechanism of the soil greenhouse gas release rates, the traditional soil sampling method is to directly remove the soil, the soil environment is severely disturbed by the method, the current sampling result is influenced, and the soil matrix content of potted plants is possibly remarkably reduced due to long-term high-frequency soil removal. The device is lack of a device, which not only can measure the release rate of greenhouse gases of soil at different depths of potted plants, but also can realize the monitoring of physical, chemical and biological indexes of soil at the same layer.
Disclosure of Invention
The invention aims to solve at least one technical problem existing in the background technology and provides a device for measuring the release rate of greenhouse gases in potting soil at different depths.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a potted-soil different-depth greenhouse gas release rate measuring device, comprising:
the flowerpot is provided with transverse bottle holes and probe holes at intervals along the depth direction;
a transverse bottle mounted in the transverse bottle aperture; the body of the transverse bottle is positioned in the flowerpot, the bottle mouth is positioned outside the flowerpot, the body is placed in soil when the flowerpot is covered with soil, and the wall of the bottle is contacted with surrounding soil; the circumferential surface of the bottle body positioned in the flowerpot is provided with ventilation holes;
the water absorbing piece is arranged in the body of the transverse bottle;
and the temperature and humidity probe is inserted into the probe hole and used for measuring the temperature and humidity of soil in the flowerpot.
Further, the ventilation holes are conical holes, the outer parts of the ventilation holes are thin, the inner parts of the ventilation holes are thick, the tip ends of the cones face the outside of the transverse bottle, and the round surfaces of the cones face the cavity of the transverse bottle.
Further, the number of the transverse bottle holes and the probe holes arranged in the same depth direction is the same, and each layer is positioned on the same horizontal plane.
Further, the included angle between the transverse bottle hole and the probe hole which are positioned on the same horizontal plane is 50-70 degrees.
Further, the water absorbing member is a sponge.
Further, a rubber seal is arranged between the temperature and humidity probe and the probe hole.
Further, the bottle body of the transverse bottle is cylindrical, the diameter is 3cm, and the length of the bottle body is within 10 cm.
Further, the bottle mouth of the transverse bottle is provided with an outer cover which is light-proof.
Further, the included angle between the transverse flask hole and the probe hole which are positioned on the same horizontal plane is 60 degrees.
Further, the flowerpot is provided with a transverse bottle hole and a probe hole at intervals of 10cm from top to bottom in sequence along the depth direction.
Compared with the prior art, the invention has the beneficial effects that:
through the mode of opening the hole on the flowerpot wall, the problem of measuring deep soil greenhouse gas release under the condition of hardly disturbing soil is solved, simultaneously through the design of the water absorption sponge, the problem of potting soil sampling and deep soil sampling is skillfully solved, the release rate of the soil greenhouse gas of different depths of potting can be measured, monitoring of physical, chemical and biological indexes of soil on the same layer can be realized, and the implementation of research experiments on the release rule of the soil greenhouse gas of different depths and the occurrence mechanism of the soil greenhouse gas is very favorable.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a device for measuring the release rate of greenhouse gases at different depths in potting soil, which is provided by the embodiment of the invention;
FIG. 2 is a cut-away view of FIG. 1;
FIG. 3 is a schematic view of the overall structure of the transverse bottle;
FIG. 4 is a partial schematic view of a cross-bottle;
FIG. 5 is a schematic diagram of the installation of a temperature and humidity probe;
in the figure: 1. a flower pot; 2. a transverse bottle; 3. a temperature and humidity probe; 21. and an air vent.
Detailed Description
Examples:
in the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; may be a mechanical connection; the two elements may be directly connected or indirectly connected through an intermediate medium, so to speak, the two elements are communicated internally. It will be understood by those of ordinary skill in the art that the terms described above are in the specific sense of the present invention. The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 5, the device for measuring the release rate of greenhouse gases in potting soil at different depths according to the embodiment mainly comprises a flowerpot 1, a transverse bottle 2, a water absorbing member and a temperature and humidity probe 3.
Wherein, the flowerpot 1 is provided with a transverse bottle hole and a probe hole at intervals of 10cm from top to bottom along the depth direction, that is, the transverse bottle hole and the probe hole on the same layer are all positioned on the same horizontal plane; the transverse bottle 2 is correspondingly and hermetically arranged in the transverse bottle hole, the bottle mouth is provided with an outer cover which does not transmit light, the bottle mouth faces outwards, the bottle body is arranged in the flowerpot, the bottle body is placed in soil when covered with soil, the bottle wall is in close contact with surrounding soil, so that the bottle body needs a certain deformation resistance, and ventilation holes 21 are reserved at the periphery of the bottle body so as to keep the water and gas exchange between the transverse bottle and the soil in the flowerpot; preferably, the ventilation holes 21 are conical fine holes, the tips of the cones face to the outside of the transverse bottle, the circles of the cones face to the inside of the cavity of the transverse bottle, and the design purposes of the fine holes and the thick holes are to ensure that the fine holes are not blocked by soil in the flowerpot, and further to keep the water and gas exchange between the transverse bottle and the soil in the flowerpot.
The body of the transverse bottle 2 is cylindrical, the diameter is 3cm, the length of the transverse bottle in the flowerpot wall is within 10cm, the purpose is to ensure that gas and moisture in soil fully permeate into the transverse bottle, meanwhile, the influence on the growth of soil and plant root systems is reduced, the body is filled with a water absorbing piece with the same shape, in the embodiment, the sponge is particularly required to be strong in water absorption, good in toughness and stable in composition, the sponge is placed in the body in an experiment, the bottle cap is screwed, the sponge is taken out and soaked in deionized water with the same volume in sampling, the squeezed filtered solution is used for measuring nutrients in the soil, and after the sponge is removed, the residual cavity in the transverse bottle can be used for collecting greenhouse gas of a corresponding soil layer for measuring work; and (5) refilling the pure sponge after the measurement is completed, and screwing the bottle cap.
The temperature and humidity probe 3 is inserted into the probe hole and used for measuring the temperature and humidity of soil in the flowerpot; in addition, in order to reduce the exudation of water and soil in the flowerpot, be provided with sealed rubber strip in this probe hole, that is to say, be provided with sealed rubber strip between humiture probe and the probe hole, the sealed rubber strip of horizontal placement sets up and is 50-70 contained angle (namely probe hole and the contained angle between the horizontal bottle hole are 50-70) with horizontal bottle place diameter, and is 60 in this example specifically, and in the position of same horizontal plane, both sides all need to set up about, the main objective is the soil humiture of convenient survey soil on the same layer, on the other hand conveniently survey greenhouse gas and soil humiture operation in step.
In summary, this through the mode of opening the hole on the flowerpot wall, solved under the condition of hardly disturbing soil, survey deep soil greenhouse gas release's problem, simultaneously through the design of sponge that absorbs water, ingenious solution potted plant soil sample and deep soil sample's problem can survey potted plant different degree of depth soil greenhouse gas release rate, can realize the monitoring of same-layer soil physical, chemistry and biological index again, very be favorable to the research experiment of different soil depth soil greenhouse gas release laws and emergence mechanism to go on.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the essence of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A potted-type soil different-depth greenhouse gas release rate measuring device, which is characterized by comprising:
the flowerpot is provided with transverse bottle holes and probe holes at intervals along the depth direction;
a transverse bottle mounted in the transverse bottle aperture; the body of the transverse bottle is positioned in the flowerpot, the bottle mouth is positioned outside the flowerpot, the body is placed in soil when the flowerpot is covered with soil, and the wall of the bottle is contacted with surrounding soil; the circumferential surface of the bottle body positioned in the flowerpot is provided with ventilation holes;
the water absorbing piece is arranged in the body of the transverse bottle;
the temperature and humidity probe is inserted into the probe hole and used for measuring the temperature and humidity of soil in the flowerpot;
the air vent is a conical hole, the outer part of the air vent is thin, the inner part of the air vent is thick, the tip of the cone faces the outside of the transverse bottle, and the cone faces the cavity of the transverse bottle;
the transverse bottle holes and the probe holes are arranged in the same depth direction in the same number, and each layer is positioned on the same horizontal plane;
the included angle between the transverse bottle hole and the probe hole which are positioned on the same horizontal plane is 50-70 degrees;
the water absorbing piece is a sponge;
the bottle body is filled with the water absorbing parts with the same shape,
placing the sponge into a bottle body, screwing a bottle cap, taking out the sponge during sampling, placing the sponge into deionized water with the same volume for soaking, squeezing and filtering out a solution for determining nutrients in soil, and after the sponge is removed, collecting greenhouse gases in a corresponding soil layer by using a residual cavity in a transverse bottle for determining work; and (5) refilling the pure sponge after the measurement is completed, and screwing the bottle cap.
2. The device for measuring the release rate of greenhouse gases at different depths in potting soil according to claim 1, wherein a rubber strip is sealed between the temperature and humidity probe and the probe hole.
3. The device for measuring the release rate of greenhouse gases in potting soil at different depths according to claim 1, wherein the body of the transverse bottle is cylindrical, has a diameter of 3cm and has a length of less than 10 cm.
4. A potted soil differential depth greenhouse gas release rate determining apparatus according to claim 1 or 3, wherein the mouth of the transverse bottle is provided with an opaque outward cap.
5. The device for measuring the release rate of greenhouse gases at different depths in potted soil according to claim 1, wherein the included angle between the transverse flask hole and the probe hole on the same horizontal plane is 60 °.
6. The device for measuring the release rate of greenhouse gases at different depths in potting soil according to claim 1, wherein the flowerpot is provided with transverse bottle holes and probe holes at intervals of 10cm from top to bottom in sequence along the depth direction.
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| CN202110512359.7A CN113447635B (en) | 2021-05-11 | 2021-05-11 | Potted plant soil greenhouse gas release rate measuring device with different depths |
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| CN202110512359.7A CN113447635B (en) | 2021-05-11 | 2021-05-11 | Potted plant soil greenhouse gas release rate measuring device with different depths |
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| CN113447635B true CN113447635B (en) | 2023-09-29 |
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