CN206609782U - A kind of edaphon respiration measuring device - Google Patents
A kind of edaphon respiration measuring device Download PDFInfo
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- CN206609782U CN206609782U CN201721072364.6U CN201721072364U CN206609782U CN 206609782 U CN206609782 U CN 206609782U CN 201721072364 U CN201721072364 U CN 201721072364U CN 206609782 U CN206609782 U CN 206609782U
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- measuring chamber
- insertion tube
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Abstract
The utility model discloses a kind of edaphon respiration measuring device, including measuring chamber, measuring chamber closure, infrared CO2Analyzer, air pump, soda lime post, air cleaner and Flow-rate adjustment main valve, described measuring chamber is made up of housing, metal insertion tube and metal insertion plate, metal insertion tube is hermetically connected with the shell, housing sidewall sets side wall branch neck, and side wall branch neck is tightly connected with rubber cap, uses enclosed construction, measuring environment is wild environment, without soil disturbance, ground microclimate condition, infrared CO are not influenceed2The measurement analysis of analyzer diffusion type, reduces sampling pump, alleviates the weight of system, facilitate carrying, by advance by the CO in air2Remove, will be without CO2Original air in the fine particulate matter that air is imported in air cleaner removal gas, emptying soil surveying room, reduces the CO of original environment2Influence of the concentration to respiration measurement.
Description
Technical field
The present invention relates to soil surveying technical field, more particularly to a kind of edaphon respiration measuring device.
Background technology
Soil respiration is the important biomolecule index for characterizing soil quality and fertility, and it reflects biological activity of soil and soil
The intensity of earth metabolism.During ecological succession, the change of vegetation is by absorbing nutrient and giving back organic matter etc., to influence
The physico-chemical and biological properties of soil, soil respiration also changes therewith, indicates process and the side of ecosystem succession
To.In addition, in terms of microclimatology angle, the CO of soil release2Subaerial microclimate condition is changed, is plant bottoms canopy
There is provided more rich carbon source.Portable soil respiratory measurement system is by main frame and hand-held double channel data acquisition display group
Into for field soil breathing/CO2Flux measurement.
Measuring method at this stage is mainly static alkali absorption method and sealed gas chamber method：
Static alkali absorption method：The soil that people study forest, grassland and farmland ecosystem using alkali absorption method is exhaled
Inhale.Some researchers also have researcher with solid base grain with alkali lye (NaOH or KOH solution).Their principle be it is the same,
That is Alkali absorption CO2Carbonate is formed, then remaining alkali number is calculated with gravimetric method or neutralization titration, is calculated according to formula
Go out the CO of soil discharge in certain time2Total amount.By taking soda solution grouting as an example, specific operating process is as follows：Selected in sample ground straight
Footpath is 25 centimetres of circular measuring point, and after the green plants in circle is cut together, the small tripod of high 2 cm is consolidated
The center of circle is scheduled on, the glass jar for having been injected into 20ml NaOH solutions in advance is placed thereon, it is rapid (straight with galvanized metal drum
25 centimetres of footpath, high 30 centimetres, one end is closed) be buckled on selected sample circle, avoid Atmospheric CO for isolation outside air2Interference,
2 centimetres in drum lower edge press-in soil, it is ensured that bucket is with the external world without gas exchanges.Alkali lye bottle is taken out after a period of time, is covered rapidly
Subband returns experiment lab analysis, can obtain the soil respiration rates in the time.
Sealed gas chamber method：Sealed gas chamber method includes gas chromatography and infrared CO2Two kinds of analytic approach.This method is bottomless by one
In tubular container one end insertion soil of uncovered, after stabilization interior after a while, capping, with a needle-like connector with certain
Time interval extract gaseous sample and enter in vacuum tank, determine wherein CO with gas chromatograph or infrared spectrum analyser2It is dense
Degree, calculates CO2The speed of discharge.
Both approaches are respectively present weak point, are mainly reflected in：(1) soda solution grouting changes ground microclimate condition；
(2) closed method sampling interval can not be too short；Require supplementation with same volume air；(3) closed method needs sampling pump, and measuring environment is because of air-flow
Caused air pressure change and produce influence；(4) precision for being limited in that measure of soda solution grouting is undesirable, in soil respiration rates
In the case of low, the result of measure is higher than actual value, and in the case where soil respiration rates are high, measurement result is more inclined than actual value
It is low.
Utility model content
In view of the above-mentioned problems, a kind of edaphon respiration measuring device of the new offer of this reality, including measuring chamber, measuring chamber
Closure, infrared CO2Analyzer, air pump, soda lime post, air cleaner and Flow-rate adjustment main valve, described measuring chamber by
Housing, metal insertion tube and square metal insertion plate composition, metal insertion tube are hermetically connected with the shell, and housing sidewall sets side
Wall branch neck, side wall branch neck is tightly connected with rubber cap, and the face of metal insertion tube inwall three sets fluted, and remaining one side is provided with bar
Shape opening, metal insertion plate be welded by a metal plate and metal baffle are T-shaped, metal plate by strip gab insertion and
Chimeric with metal insertion tube groove, the salable covering metal insertion tube inwall strip gab of metal baffle, described measuring chamber is close
Air inlet pipe and breather pipe are provided with capping, measuring chamber closure is sealedly connected under housing upper end, housing by hickey
The upper end with metal insertion tube is held to be tightly connected, the air pump, soda lime post, air cleaner and Flow-rate adjustment main valve pass through
Pipeline is sequentially connected, and is connected via the air inlet pipe on measuring chamber hermetically sealed can with measuring chamber, infrared CO2Analyzer passes through breather pipe
Connected with measuring chamber hermetically sealed can.
It is preferred that, cone point is made along outer wall radially inward in the bottom of metal insertion tube.
It is preferred that, measuring chamber enclosure interior is provided with temperature control device.
It is preferred that, measurement room housing is silver color aluminum alloy material, reduces radiant heat absorbent, and improve dissipating for measuring chamber
Heat, reduces influence of the ground microclimate to measurement result.
Relative to prior art, the beneficial effects of the utility model are：
1st, the utility model passes through in advance by the CO in air2Remove, will be without CO2Air imports air cleaner and goes degasification
Original air in fine particulate matter in body, emptying soil surveying room, reduces the CO of original environment2Concentration is to respiration measurement
Influence.
2nd, the utility model measuring chamber uses enclosed construction, and measuring environment is wild environment, and no soil disturbance does not influence
Ground microclimate condition, infrared CO2The measurement analysis of analyzer diffusion type, reduces sampling pump, alleviates the weight of system, convenient
Carry.
3rd, the infrared CO for ecology measurement2Analyzer, single beam dual wavelength infrared technique, measurement is accurate, and data are real-time
Transmission log.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not constitute the improper restriction to the application.
Fig. 1 is the structural representation of the utility model embodiment.
1st, housing, 2, metal insertion tube, 3, measuring chamber closure, 4, groove, 5, metal insertion plate, 6, side wall branch neck, 7,
Rubber cap, 8, air inlet pipe, 9, breather pipe, 10, infrared CO2Analyzer, 11, air pump, 12, soda lime post, 13, air filtration
Device, 14, Flow-rate adjustment main valve, 15, cone point, 16, temperature control device.
Embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless
Separately-indicate, all technologies used herein and scientific terminology have and the application person of an ordinary skill in the technical field
The identical meanings of generally-understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise odd number shape
Formula-be also intended to include plural form, additionally, it should be understood that, when in this manual use term "comprising" and/or
During " comprising ", it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Embodiment 1
A kind of edaphon respiration measuring device, including measuring chamber, measuring chamber closure 3, infrared CO2Analyzer 10,
Air pump 11, soda lime post 12, air cleaner 13 and Flow-rate adjustment main valve 14, described measuring chamber is by housing 1, square gold
Category insertion tube 2 and metal insertion plate 5 are constituted, and metal insertion tube 2 is tightly connected with housing 1, and the bottom of metal insertion tube 2 is along outer wall
Cone point 15 is made in radially inward, and measurement room housing 1 is internally provided with temperature control device 16, and measurement room housing 1 is silver color aluminium
Alloy material, reduces radiant heat absorbent, and improves the radiating of measuring chamber, reduces shadow of the ground microclimate to measurement result
Ring, the side wall of housing 1 sets side wall branch neck 6, and side wall branch neck 6 is tightly connected with rubber cap 7, in described square metal insertion tube 2
The face of wall three sets fluted 4, and remaining one side is provided with strip gab, and it is in T that metal, which inserts plate 5 by a metal plate and metal baffle,
Type is welded, and metal plate is inserted and chimeric with metal insertion tube groove by strip gab, the salable covering gold of metal baffle
Belong to and be provided with air inlet pipe 8 and breather pipe 9, the air inlet pipe 8 on the inwall strip gab of insertion tube 2, described measuring chamber closure 3
Gas valve is equipped with breather pipe 9, measuring chamber closure 3 is sealedly connected under the upper end of housing 1, housing 1 by hickey
The upper end with metal insertion tube 2 is held to be tightly connected, the air pump 12, soda lime post 13, air cleaner 14 and Flow-rate adjustment
Main valve 15 is sequentially connected by pipeline, and is connected via on measuring chamber hermetically sealed can 3 air inlet pipe 8 with measuring chamber, infrared CO2Analysis
Instrument 10 is connected by breather pipe 9 with measuring chamber hermetically sealed can.
During using the present apparatus：
(1) housing of measuring chamber, the helixseal of metal insertion tube are connected, extracted out metal insertion tube after metal insertion plate
Insert after soil certain depth, the soil of strip gab side is dug to strip gab depth below, be inserted into metal insertion plate
Constitute soil plugging meter room；
(2) rubber cap of side wall branch neck is extracted, air pump is opened and bypasses air through soda lime post, by the CO in air2Go
Remove, will be without CO2Original sky in the fine particulate matter that air is imported in air cleaner removal gas, emptying soil surveying room
Gas, derived cleaning is without CO2Air controls total flow size by Flow-rate adjustment main valve, and enters measuring chamber by air inlet pipe,
The gas valve closed in air inlet pipe, covers tightly rubber cap；
(3) soil incubation for a period of time, passes through infrared CO2Analyzer reads CO in real time2Concentration, obtains soil respiration rates.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deform still within protection scope of the present invention that creative work can make.
Claims (4)
1. a kind of edaphon respiration measuring device, including measuring chamber, measuring chamber closure, infrared CO2Analyzer, air pump,
Soda lime post, air cleaner and Flow-rate adjustment main valve, described measuring chamber are inserted by housing, square metal insertion tube and metal
Enter plate composition, metal insertion tube is hermetically connected with the shell, housing sidewall sets side wall branch neck, side wall branch neck is sealed with rubber cap to be connected
Connect, the described face of square metal insertion tube inwall three sets fluted, remaining one side is provided with strip gab, metal insert plate by
One metal plate with metal baffle is T-shaped is welded, metal plate is inserted and embedding with metal insertion tube groove by strip gab
Close, the salable covering metal insertion tube inwall strip gab of metal baffle, air inlet pipe is provided with described measuring chamber closure
With breather pipe, measuring chamber closure is sealedly connected on housing upper end by hickey, and housing lower end is upper with metal insertion tube
End is tightly connected, and the air pump, soda lime post, air cleaner and Flow-rate adjustment main valve are sequentially connected by pipeline, and are passed through
Air inlet pipe on measuring chamber hermetically sealed can is connected with measuring chamber, infrared CO2Analyzer is connected by breather pipe and measuring chamber hermetically sealed can
It is logical.
2. a kind of edaphon respiration measuring device as claimed in claim 1, it is characterised in that the bottom of metal insertion tube
Cone point is made along outer wall radially inward.
3. a kind of edaphon respiration measuring device as claimed in claim 1, it is characterised in that measuring chamber enclosure interior is set
It is equipped with temperature control device.
4. a kind of edaphon respiration measuring device as claimed in claim 1, it is characterised in that measurement room housing is silver color
Aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721072364.6U CN206609782U (en) | 2017-08-25 | 2017-08-25 | A kind of edaphon respiration measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721072364.6U CN206609782U (en) | 2017-08-25 | 2017-08-25 | A kind of edaphon respiration measuring device |
Publications (1)
| Publication Number | Publication Date |
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| CN206609782U true CN206609782U (en) | 2017-11-03 |
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| CN201721072364.6U Expired - Fee Related CN206609782U (en) | 2017-08-25 | 2017-08-25 | A kind of edaphon respiration measuring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181444A (en) * | 2017-12-22 | 2018-06-19 | 苏州艾捷尔斯生物科技有限公司 | A kind of band removes the microbial respiratory measurement device of carbon dioxide |
| CN109669010A (en) * | 2018-12-29 | 2019-04-23 | 江苏大学 | A kind of Tidal Wetland Soils Carbon flux measurement pedestal |
| CN112857925A (en) * | 2021-01-27 | 2021-05-28 | 暨南大学 | Method and device for collecting and analyzing aldehyde and ketone substances in biogas sample |
| CN113005029A (en) * | 2021-03-11 | 2021-06-22 | 中国科学院地理科学与资源研究所 | Soil microorganism respiration measuring device |
-
2017
- 2017-08-25 CN CN201721072364.6U patent/CN206609782U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181444A (en) * | 2017-12-22 | 2018-06-19 | 苏州艾捷尔斯生物科技有限公司 | A kind of band removes the microbial respiratory measurement device of carbon dioxide |
| CN109669010A (en) * | 2018-12-29 | 2019-04-23 | 江苏大学 | A kind of Tidal Wetland Soils Carbon flux measurement pedestal |
| CN112857925A (en) * | 2021-01-27 | 2021-05-28 | 暨南大学 | Method and device for collecting and analyzing aldehyde and ketone substances in biogas sample |
| CN112857925B (en) * | 2021-01-27 | 2023-09-12 | 暨南大学 | Method for collecting and analyzing aldehyde ketone substances in biological gas sample and device thereof |
| CN113005029A (en) * | 2021-03-11 | 2021-06-22 | 中国科学院地理科学与资源研究所 | Soil microorganism respiration measuring device |
| CN113005029B (en) * | 2021-03-11 | 2022-05-03 | 中国科学院地理科学与资源研究所 | Soil microorganism respiration measuring device |
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Granted publication date: 20171103 Termination date: 20180825 |