Soil respiration carbon collecting device

Abstract

The utility model discloses a soil respiration carbon collecting device which comprises a soil culture unit and an alkali liquor storage unit, the soil culture unit comprises a culture bottle body and a culture bottle cap, and the alkali liquor storage unit comprises an alkali liquor storage bottle and a connecting element. During measurement, soil is evenly laid at the bottom of an inner cavity of the culture bottle body, the water content of the soil is adjusted to the soil water-holding capacity meeting the measurement condition through deionized water, gas in the culture bottle body is emptied after pre-culture, and after the soil is cultured to be in a stable state, prepared alkali absorption liquid is put into the alkali liquor storage bottle, the alkali liquor storage bottle is put into the culture bottle body, and the soil is placed in the culture bottle body. The length of the connecting element is adjusted, the connecting element is connected with the culture bottle cap, so that a proper distance is kept between the alkali liquor storage bottle and soil in the culture bottle body, and the culture bottle cap is covered. According to the soil respiration carbon collecting device, the integrated design is adopted, moving and taking are convenient, all accessory materials of the device can be repeatedly used, and cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to soil respiration parameter determination equipment and its peripheral supporting facility technical field, especially a kind of soil respiration carbon collection device. BACKGROUND

[0002] Soil respiration is the main output path of grassland soil carbon release, and has certain ecological significance for maintaining carbon pool stability. Soil respiration refers to the process of soil producing and releasing CO2 (carbon dioxide) into the atmosphere. According to statistics, about 60 billion tons of CO2 are released into the atmosphere from land every year. Meanwhile, it is the largest carbon emission process in grassland ecosystem. As a key link of carbon cycle in grassland ecosystem, slight change of soil respiration will have great impact on soil carbon pool balance.

[0003] There are direct method and indirect method for measuring soil respiration carbon release amount. Indirect measurement method is to measure related indexes affecting soil respiration first, and then calculate CO2 value released by soil. This method has relatively large error and great limitation in use. At present, static alkali absorption method in direct method is commonly used in small-scale scientific research.

[0004] However, the device in the prior art has the disadvantages of complex structure, low precision and high cost. The alkali absorption bottle is placed on the soil surface, which causes uneven release of CO2 produced by soil respiration. Or the alkali absorption device is too far away from the soil, which causes incomplete absorption of CO2 and carbon isotope absorption preference, which will affect the measurement accuracy. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of soil respiration carbon collection device to solve the problems existing in the above-mentioned related technologies, improve the measurement accuracy of soil respiration carbon release amount.

[0006] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0007] The utility model provides a kind of soil respiration carbon collection device, comprising:

[0008] The soil culture unit comprises a culture bottle body and a culture bottle cap. The inner cavity of the culture bottle body can accommodate soil. The culture bottle body and the culture bottle cap are detachably connected. The culture bottle cap has a replenishment hole. A bottle plug is arranged at the replenishment hole. The bottle plug and the culture bottle cap are detachably connected. Sealing elements are arranged between the culture bottle body and the culture bottle cap and between the bottle plug and the culture bottle cap.

[0009] The alkali storage unit comprises an alkali storage bottle and a connecting element, the inner cavity of the alkali storage bottle can contain alkali absorption liquid, the alkali storage bottle is arranged in the culture bottle body, the connecting element is connected with the alkali storage bottle, and when the culture bottle body is connected with the culture bottle cap, the connecting element can be connected with the culture bottle cap, and the length of the connecting element can be adjusted to adjust the distance between the alkali storage bottle and the soil in the culture bottle body.

[0010] Preferably, the culture bottle body is a foldable structure, so that the height of the culture bottle body can be adjusted, and the culture bottle body is made of polyethylene material.

[0011] Preferably, a spring clamp is arranged between the culture bottle body and the culture bottle cap, and the culture bottle body can be connected with the culture bottle cap by the spring clamp.

[0012] Preferably, the culture bottle cap also has a protruding wrench.

[0013] Preferably, the culture bottle cap is provided with a hook on the side facing the inner cavity of the culture bottle body, and the connecting element can be hooked on the hook.

[0014] Preferably, the two ends of the connecting element are tied to the alkali storage bottle, and the middle part of the connecting element forms a ring structure with the alkali storage bottle to be hooked on the hook.

[0015] Preferably, the alkali storage bottle is a transparent glass bottle, and the connecting element is made of iron wire.

[0016] Preferably, the alkali storage bottle and the culture bottle body are coaxially arranged.

[0017] Preferably, the culture bottle cap and the plug are both sleeved with the sealing element, and the sealing element is a silica gel ring.

[0018] Preferably, the top of the plug has a protruding operation handle.

[0019] The utility model discloses relative to relevant technology has obtained following technical effect: the utility model discloses soil respiration carbon collection device, including soil culture unit and lye storage unit, wherein, soil culture unit includes culture bottle body and culture bottle cover, and the inner chamber of culture bottle body can hold soil, and culture bottle body is detachably connected with culture bottle cover, and culture bottle cover has the supplementary hole, and the supplementary hole is provided with the bottle plug, and the bottle plug is detachably connected with culture bottle cover, and the sealing element is arranged between culture bottle body and culture bottle cover, and between bottle plug and culture bottle cover, and the length of connecting element can be adjusted to adjust the interval between lye storage bottle and soil in culture bottle body.

[0020] The utility model discloses soil respiration carbon collection device, when determining, evenly spreads soil in the inner chamber bottom of culture bottle body, adjusts soil water content to the soil water holding capacity that satisfies the determination condition with deionized water, empties the gas in culture bottle body after pre-culturing, and after soil culture reaches stable state, the prepared alkali absorption liquid is put into lye storage bottle, and the lye storage bottle is put into culture bottle body, the length of connecting element is adjusted, and connecting element is connected with culture bottle cover, so that the lye storage bottle and soil in culture bottle body keep proper interval, and culture bottle cover is covered. In the cultivation process, the change of soil water holding capacity is determined by weighing, when it is necessary to adjust soil water holding capacity, the bottle plug is opened, and water is supplemented through the supplementary hole to reach the soil water holding capacity that satisfies the determination condition. Obtain alkali absorption liquid of different time periods, replace lye storage bottle after completing each stage culture days, prepare new lye storage bottle in advance, quickly open culture bottle cover, take out the lye storage bottle that has absorbed CO2, and replace new one. The utility model discloses soil respiration carbon collection device, and soil and lye storage bottle are placed in culture bottle body, and the length of connecting element can be adjusted, so as to realize the interval adjustment between soil and alkali absorption liquid in lye storage bottle, avoid the distance between lye storage bottle and soil too big or too small, make the interval between the both proper, improve soil respiration carbon release amount determination precision. Meanwhile, the utility model sets up the supplementary hole on culture bottle cover, and the bottle plug is set up at the supplementary hole, and the supplementary hole can conveniently supplement water to soil in culture bottle body, need not open culture bottle cover, convenient operation, and the external air is reduced to the maximum extent and enters culture bottle body. The utility model discloses soil respiration carbon collection device adopts integrated design, is convenient for moving and taking, and all the fittings materials of the device can be repeatedly used, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only represent some of the embodiments of the present application, and do not represent all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0022] Figure 1 The structure diagram of the soil respiration carbon collection device disclosed in the embodiments of the present application.

[0023] In the figure: 1, culture bottle body; 2, culture bottle cover; 3, spring clamp; 4, wrench; 5, sealing element; 6, bottle plug; 7, hook; 8, connecting element; 9, alkali storage bottle. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, and not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0025] The purpose of the present application is to provide a soil respiration carbon collection device to solve the problems in the above-mentioned related art and improve the measurement accuracy of soil respiration carbon release amount.

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0027] Embodiment one

[0028] The present embodiment provides a soil respiration carbon collection device, please refer to Figure 1 , which comprises a soil culture unit and an alkali storage unit. The soil culture unit comprises a culture bottle body 1 and a culture bottle cover 2. The inner cavity of the culture bottle body 1 can accommodate soil. The culture bottle body 1 is detachably connected with the culture bottle cover 2. The culture bottle cover 2 has a replenishment hole. A bottle plug 6 is arranged at the replenishment hole. The bottle plug 6 is detachably connected with the culture bottle cover 2. Sealing elements 5 are arranged between the culture bottle body 1 and the culture bottle cover 2 and between the bottle plug 6 and the culture bottle cover 2. The alkali storage unit comprises an alkali storage bottle 9 and a connecting element 8. The inner cavity of the alkali storage bottle 9 can accommodate alkali absorption liquid. The alkali storage bottle 9 is arranged in the culture bottle body 1. The connecting element 8 is connected with the alkali storage bottle 9. When the culture bottle body 1 is connected with the culture bottle cover 2, the connecting element 8 can be connected with the culture bottle cover 2. The length of the connecting element 8 can be adjusted to adjust the distance between the alkali storage bottle 9 and the soil in the culture bottle body 1.

[0029] The soil respiration carbon collection device of the utility model, when measuring, the soil is evenly spread on the bottom of the inner cavity of the culture bottle body 1, and the soil water content is adjusted to the soil water holding capacity that satisfies the measuring condition by using deionized water, the gas in the culture bottle body 1 is emptied after pre-cultivation, the soil is cultivated to the stable state, the prepared alkali absorption liquid is put into the alkali storage bottle 9, the alkali storage bottle 9 is put into the culture bottle body 1, the length of the connecting element 8 is adjusted, and the connecting element 8 is connected with the culture bottle cover 2, the alkali storage bottle 9 and the soil in the culture bottle body 1 are kept at a proper distance, and the culture bottle cover 2 is covered. During the cultivation process, the change of the soil water holding capacity is determined by weighing; when it is necessary to adjust the soil water holding capacity, the stopper 6 is opened, and water is supplemented through the supplementing hole to reach the soil water holding capacity that satisfies the measuring condition. The alkali absorption liquid of different time periods is obtained, the alkali storage bottle 9 is replaced after the cultivation days of each stage are completed, the new alkali storage bottle 9 is prepared in advance, the culture bottle cover 2 is quickly opened, the alkali storage bottle 9 that has absorbed CO2 is taken out, and the new one is put in. The soil respiration carbon collection device of the utility model puts the soil and the alkali storage bottle 9 in the culture bottle body 1, and the length of the connecting element 8 can be adjusted, so that the distance between the soil and the alkali absorption liquid in the alkali storage bottle 9 is adjusted, the distance between the alkali storage bottle 9 and the soil is prevented from being too large or too small, the distance between the two is appropriate, the alkali absorption liquid is helpful to absorbing the CO2 gas generated by soil respiration, and the accuracy of the determination of the soil respiration carbon release amount is improved. Meanwhile, the utility model is provided with a supplementing hole on the culture bottle cover 2, the stopper 6 is arranged at the supplementing hole, the soil in the culture bottle body 1 can be conveniently supplemented with water through the supplementing hole, the culture bottle cover 2 does not need to be opened, the operation is convenient, and the external air entering the culture bottle body 1 is minimized. The soil respiration carbon collection device of the utility model adopts an integrated design, is convenient to move and take, all the accessory materials of the device can be repeatedly used, and the determination cost can be saved. It should be further pointed out that the sealing element 5 is arranged between the culture bottle body 1 and the culture bottle cover 2 and between the stopper 6 and the culture bottle cover 2, and the sealing property of the device is ensured.

[0030] The culture bottle body 1 is made of polyethylene material, the bottom is flat, and the soil is conveniently laid.

[0031] In the specific embodiment, the spring clamp 3 is arranged between the culture bottle body 1 and the culture bottle cover 2, the culture bottle body 1 can be connected with the culture bottle cover 2 by using the spring clamp 3, and the culture bottle body 1 and the culture bottle cover 2 are connected by using the spring clamp 3 after the soil and the alkali storage bottle 9 are put in.

[0032] In order to facilitate operation, the culture bottle cover 2 is also provided with a protruding wrench 4, and the operator can conveniently open the culture bottle cover 2 by means of the wrench 4. When it is necessary to close the culture bottle cover 2, the wrench 4 can also be used to apply force to the culture bottle cover 2, thereby improving the operation convenience of the soil culture unit.

[0033] Specifically, the culture bottle cover 2 is provided with a hook 7 on the side facing the inner cavity of the culture bottle body 1, and the connecting element 8 can be hooked on the hook 7, so as to realize the connection of the alkali storage bottle 9 and the culture bottle cover 2, and ensure that the alkali storage bottle 9 maintains a suitable measurement distance from the soil laid in the culture bottle body 1. The alkali storage bottle 9 is fixed by the hook 7 in the utility model, which has a simple structure and is convenient to operate. In actual application, the connecting element 8 can also be connected with the culture bottle cover 2 in a clamping or inserting manner, and the clamping or inserting direction can be parallel to the horizontal direction, so as to ensure the structural stability of the alkali storage bottle 9, and the structure is simple, the connection is firm, and the disassembly and assembly are convenient.

[0034] In the specific embodiment, the two ends of the connecting element 8 are bound to the outside of the mouth of the alkali storage bottle 9, and the middle part of the connecting element 8 forms a ring structure with the alkali storage bottle 9 to be hooked on the hook 7, which has a simple structure and is convenient to operate. The length of the middle part of the connecting element 8 can be adjusted by adjusting the number of turns of the connecting element 8 bound to the alkali storage bottle 9, so as to adjust the hanging height of the alkali storage bottle 9.

[0035] In actual application, the alkali storage bottle 9 can be a transparent glass bottle, which is convenient to observe. The connecting element 8 is made of iron wire, and soft iron wire can be selected, which is convenient to fix the alkali storage bottle 9. The soft iron wire with a certain rigidity is used as the connecting element 8, which is convenient to operate and ensures the structural stability of the connecting element 8. In other specific embodiments that can be realized by the utility model, the connecting element 8 can also be selected from structures such as telescopic rods or elastic ropes, so as to realize the purpose of adjusting the height of the alkali storage bottle 9 in the culture bottle body 1.

[0036] In the specific embodiment, the alkali storage bottle 9 is coaxially arranged with the culture bottle body 1, so that the carbon dioxide released by soil respiration can be uniformly contacted with the alkali absorption liquid in the alkali storage bottle 9. The alkali storage bottle 9 of the utility model is hung on the hook 7 by means of the connecting element 8, so that the alkali storage bottle 9 can keep balance under the action of gravity, and the alkali storage bottle 9 is prevented from being skewed or misaligned.

[0037] It should be further pointed out that the culture bottle cover 2 and the bottle plug 6 are both provided with a sealing element 5, which is detachably connected with the culture bottle cover 2 and the bottle plug 6, is convenient to replace, ensures the sealing property of the device, and the sealing element 5 can be a silica gel ring.

[0038] In addition, in actual application, a protruding operation handle can be arranged on the top of the bottle plug 6, which is convenient to take and place the bottle plug 6, and further improves the operation convenience of the device.

[0039] The soil respiration carbon collection device of the utility model, when carrying out soil respiration culture, opening culture bottle cover 2, culture bottle body 1 is unfolded from the folding state to the suitable height, the soil is evenly spread and flattened on the bottom of culture bottle body 1, and the water content is adjusted to the maximum water holding capacity of the soil with deionized water, and the gas in the air is removed into culture bottle body 1 after pre-culture for three days; after the soil culture is stable, the alkali absorption liquid is prepared in advance, put into alkali liquid storage bottle 9, the bottle opening of alkali liquid storage bottle 9 is surrounded to be compact by linking element, the soft iron wire is closed loop with proper length, then culture bottle cover 2 is quickly opened by spanner 4, the soft iron wire with alkali liquid storage bottle 9 is quickly hung on hook 7, and culture bottle cover 2 is closed immediately; during the culture process, the change of the water holding capacity of the soil is observed by weighing, if adjustment is needed, the bottle plug 6 is opened to add water to reach the maximum water holding capacity of the soil; the alkali absorption liquid of different time periods is obtained, the alkali liquid storage bottle 9 is replaced after completing the culture days of each stage, the same alkali liquid storage bottle 9 is prepared in advance and the soft iron wire is wound, culture bottle cover 2 is quickly opened, the alkali liquid storage bottle 9 that has absorbed CO2 is taken out, and the new alkali liquid storage bottle 9 is replaced. The soil respiration carbon collection device of the utility model adopts the integrated structure, is convenient to move and take, and can effectively improve the soil respiration carbon release amount determination efficiency.

[0040] Example two

[0041] The embodiment provides a kind of determination system, including incubator and the soil respiration carbon collection device of example one, culture bottle body 1 and culture bottle cover 2 are connected as integrated structure by spring clamp 3, it is convenient to place in constant temperature and humidity incubator and move and take anytime, provide convenient condition for soil respiration carbon release amount determination.

[0042] The principle and implementation mode of the utility model are described by applying specific examples in the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the art, according to the idea of the utility model, there will be changes in specific implementation mode and application range. As described above, the content of the specification should not be understood as limiting the utility model.

Claims

1. A soil respiration carbon collection device, characterized by, The application relates to a soil culture device, which comprises a soil culture unit, an alkali solution storage unit and a connecting element. The soil culture unit comprises a culture bottle body and a culture bottle cover, the inner cavity of the culture bottle body can accommodate soil, the culture bottle body is detachably connected with the culture bottle cover, the culture bottle cover is provided with a supplement hole, a bottle plug is arranged at the supplement hole, the bottle plug is detachably connected with the culture bottle cover, and sealing elements are arranged between the culture bottle body and the culture bottle cover and between the bottle plug and the culture bottle cover. The alkali solution storage unit comprises an alkali solution storage bottle and a connecting element, the inner cavity of the alkali solution storage bottle can accommodate alkali absorption liquid, the alkali solution storage bottle is arranged in the culture bottle body, the connecting element is connected with the alkali solution storage bottle, the connecting element can be connected with the culture bottle cover when the culture bottle body is connected with the culture bottle cover, and the length of the connecting element can be adjusted to adjust the distance between the alkali solution storage bottle and the soil in the culture bottle body.

2. The soil respiration carbon collection apparatus of claim 1, wherein: The culture bottle body is a foldable structure, the height of the culture bottle body can be adjusted, and the culture bottle body is made of polyethylene material.

3. The soil respiration carbon collection apparatus of claim 1, wherein: Spring clamps are arranged between the culture bottle body and the culture bottle cover, and the culture bottle body can be connected with the culture bottle cover through the spring clamps.

4. The soil respiration carbon collection apparatus of claim 3, wherein: The culture bottle cover is also provided with a protruding wrench.

5. The soil respiration carbon collection apparatus of claim 1, wherein: The culture bottle cover is provided with a hook on the side facing the inner cavity of the culture bottle body, and the connecting element can be hooked on the hook.

6. The soil respiration carbon collection apparatus of claim 5, wherein: The two ends of the connecting element are bound to the alkali solution storage bottle, and the middle part of the connecting element and the alkali solution storage bottle form a ring structure to be hooked on the hook.

7. The soil respiration carbon collection apparatus of claim 6, wherein: The alkali solution storage bottle is a transparent glass bottle, and the connecting element is made of iron wire.

8. The soil respiration carbon collection apparatus of any one of claims 1-7, wherein: The alkali solution storage bottle is coaxially arranged with the culture bottle body.

9. The soil respiration carbon collection apparatus of claim 1, wherein: The culture bottle cover and the bottle plug are both provided with the sealing elements, and the sealing elements are silica gel rings.

10. The soil respiration carbon collection apparatus of claim 1, wherein: The bottle plug is provided with a protruding operation handle on the top.

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