CN207675759U - A kind of easy soil carbon flux measuring device - Google Patents
A kind of easy soil carbon flux measuring device Download PDFInfo
- Publication number
- CN207675759U CN207675759U CN201721651307.3U CN201721651307U CN207675759U CN 207675759 U CN207675759 U CN 207675759U CN 201721651307 U CN201721651307 U CN 201721651307U CN 207675759 U CN207675759 U CN 207675759U
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- China
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- air plenum
- probe
- measuring device
- flux measuring
- carbon flux
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Abstract
The utility model discloses a kind of easy soil carbon flux measuring devices, it includes top air plenum and bottom air plenum, and the top air plenum and bottom air plenum are all mounted on seal box, and are located at the both sides of seal box.The inside of the top air plenum is equipped with the first gas concentration lwevel probe and the first humiture probe, the top of the top air plenum is communicated with the first deflation valve by downtake pipe, and the top of the top air plenum is connected by the first air inlet pipe with the first gas injection valve.The inside of the bottom air plenum is equipped with the second gas concentration lwevel probe and the second humiture probe, the bottom of the bottom air plenum is communicated with the second deflation valve by second exhaust pipe, and the bottom of the bottom air plenum is connected with the second gas injection valve and third gas injection valve respectively by the second air inlet pipe and third air inlet pipe.Not only measurement accuracy is higher, but also easy to operate, is suitable in experimental determination carbon dioxide diffusion coefficient and flux in the soil.
Description
Technical field
The utility model is related to soil carbon flux determination techniques fields, are measured in particular to a kind of easy soil carbon flux
Device.
Background technology
Recently as the trend aggravation of global warming, soil exchanges the boundary of carbon dioxide as air and underground environment
Face starts to obtain more and more concerns.Extra carbon dioxide gas mainly diffuses in the hole of underground simultaneously through soil pores
It is stored, therefore studies diffusion coefficient and flux of the carbon dioxide in the soil body, there is important scientific meaning.
The assay method of soil carbon flux includes mainly the indirect method of measurement at present（Other indexs of correlation are measured to calculate that carbon expands
Dissipate coefficient and flux）, gas chamber method and microclimate method, the indirect method of measurement has a larger spatio-temporal restriction, and microclimate method is suitable for measuring
Large-scale carbon emission, gas chamber method comparatively more suitable in laboratory to the measurement of specific soil body Carbon flux, and at this stage
Gas chamber method measurement device all there is the problems such as cost is higher or precision is insufficient.Principle of the utility model based on gas chamber method,
A kind of simple Carbon flux measurement device simple in structure, easy to operate is devised, the difference that can be used for the laboratory research soil body is special
Property（Moisture content, porosity, mineralogical composition etc.）Influence to carbon dioxide diffusion process.
Utility model content
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of easy soil carbon flux measuring devices, no
Only measurement accuracy is higher, and easy to operate, and cost is relatively low, is suitable for being spread in the soil in experimental determination carbon dioxide
Number and flux.
In order to realize above-mentioned technical characteristic, what the purpose of this utility model was realized in：A kind of easy soil carbon
Flux measuring device, it includes top air plenum and bottom air plenum, and the top air plenum and bottom air plenum are all mounted on seal box,
And it is located at the both sides of seal box.
The inside of the top air plenum is equipped with the first gas concentration lwevel probe and the first humiture probe, the top
The top of gas chamber is communicated with the first deflation valve by downtake pipe, the top of the top air plenum by the first air inlet pipe with
First gas injection valve is connected.
The inside of the bottom air plenum is equipped with the second gas concentration lwevel probe and the second humiture probe, the bottom
The bottom of gas chamber is communicated with the second deflation valve by second exhaust pipe, the bottom of the bottom air plenum by the second air inlet pipe and
Third air inlet pipe is connected with the second gas injection valve and the second gas injection valve respectively.
The first gas concentration lwevel probe and the first humiture probe pass through signal wire and external data record respectively
Instrument is connected.
The second gas concentration lwevel probe and the second humiture probe pass through signal wire and external data record respectively
Instrument is connected.
The first gas concentration lwevel probe and the second gas concentration lwevel probe all use GMP222 Vaisala
Carbocap gas concentration lwevel probes.
The external data record instrument uses CR-1000 Campbell Scientific data loggers.
The seal box is provided with soil sample inside it using being detachably connected.
The utility model has the advantages that：
1, by using above-mentioned soil carbon flux measuring device, gradient theory can be based on and soil body ventilating model is managed
By, come to carbon dioxide in soil diffusion coefficient and Carbon flux be measured, not only measurement accuracy is higher for the device, Er Qieshe
It is standby simple, at low cost.
2, it monitors the indoor humiture of gas by the humiture probe to change, ensures that humiture and external environment are basic
Unanimously, and then it ensure that the accuracy of experiment.
3, the collected test data of sensor institute can be recorded by the external data record instrument, in turn
Convenient for subsequent experimental data processing and analysis.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the overall structure diagram of the utility model.
In figure：Top air plenum 1, the first gas concentration lwevel probe 2, the first humiture probe 3, the first deflation valve 4,
One gas injection valve 5, external data record instrument 6, bottom air plenum 7, the second gas injection valve 8, third gas injection valve 9, the second vent valve
Door 10, seal box 11, the first air inlet pipe 12, downtake pipe 13, the second air inlet pipe 14, third air inlet pipe 15, the second humiture
Probe 16, the second gas concentration lwevel probe 17, second exhaust pipe 18.
Specific implementation mode
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of easy soil carbon flux measuring device, it includes top air plenum 1 and bottom air plenum 7, institute
It states top air plenum 1 and bottom air plenum 7 to be all mounted on seal box 11, and is located at the both sides of seal box 11；The top gas
The inside of room 1 is equipped with the first gas concentration lwevel probe 2 and the first humiture probe 3, and the top of the top air plenum 1 passes through
Downtake pipe 13 is communicated with the first deflation valve 4, and the top of the top air plenum 1 passes through the first air inlet pipe 12 and the first gas injection
Valve 5 is connected；The inside of the bottom air plenum 7 is equipped with the second gas concentration lwevel probe 17 and the second humiture probe 16,
The bottom of the bottom air plenum 7 is communicated with the second deflation valve 10 by second exhaust pipe 18, and the bottom of the bottom air plenum 7 is logical
The second air inlet pipe 14 and third air inlet pipe 15 is crossed respectively to be connected with the second gas injection valve 8 and third gas injection valve 9.By using upper
The measuring device stated can the principle based on gas chamber method the Carbon flux of soil is measured, can be used for the difference of the laboratory research soil body
Characteristic, such as：Moisture content, porosity, mineralogical composition etc., the influence to carbon dioxide diffusion process.
Further, the first gas concentration lwevel probe 2 and the first humiture probe 3 respectively by signal wire with it is outer
Portion's data logger 6 is connected.It can be used in recording 1 experimental data of top air plenum by the external data record instrument 6.
Further, the second gas concentration lwevel probe 17 and the second humiture probe 16 respectively by signal wire with
External data record instrument 6 is connected.It can be used in recording 1 experimental data of bottom air plenum by the external data record instrument 6.
Further, the first gas concentration lwevel probe 2 and the second gas concentration lwevel probe 17 all use
GMP222 Vaisala Carbocap gas concentration lwevel probes.
Further, the external data record instrument 6 uses CR-1000 Campbell Scientific data records
Instrument.
Further, the seal box 11 is provided with soil sample inside it using being detachably connected.By setting inside it
Soil sample is set, influence of the different characteristics to carbon dioxide diffusion process can be measured.
Utility model works process and operation principle are：
One, soil sample needed for preparing, is positioned in seal box 11, is connected with top air plenum 1 and bottom air plenum 7, is used at screw thread
Glass cement seals；
Two, the second gas injection valve 8 is opened, injects a certain amount of carbon dioxide to bottom air plenum；
Three, it monitors the indoor humiture of gas by humiture probe to change, ensures that humiture and external environment are almost the same；
Four, since top silicon dioxide carbon phase is to a concentration of 0 when on-test, according to gradient theory, carbon dioxide will be gradual
Top air plenum is diffused to from bottom air plenum.The soil body ventilating model proposed in 2005 according to Zhang.ZH et al. is theoretical, even if
Gas concentration lwevel in 2 air chambers is constantly changing, and the Carbon flux in soil can still maintain a stationary value, therefore can root
According to the monitoring result of gas concentration lwevel probe, when recording concentration in top gas chamber and bottom air plenum and reaching used when balance
Between, calculate the diffusion coefficient of carbon dioxide；
Five, the Carbon flux of this period is calculated according to Fick's law by diffusion coefficient.
Above-described embodiment is used for illustrating the utility model, rather than limits the utility model, in this practicality
In novel spirit and scope of the claims, to any modifications and changes that the utility model is made, this reality is both fallen within
With novel protection domain.
Claims (6)
1. a kind of easy soil carbon flux measuring device, it is characterised in that：It includes top air plenum（1）And bottom air plenum（7）,
The top air plenum（1）And bottom air plenum（7）All it is mounted on seal box（11）On, and it is located at seal box（11）Both sides；
The top air plenum（1）Inside the first gas concentration lwevel probe is installed（2）With the first humiture probe（3）, institute
State top air plenum（1）Top pass through downtake pipe（13）It is communicated with the first deflation valve（4）, the top air plenum（1）'s
Top passes through the first air inlet pipe（12）With the first gas injection valve（5）It is connected；
The bottom air plenum（7）Inside the second gas concentration lwevel probe is installed（17）With the second humiture probe（16）,
The bottom air plenum（7）Bottom pass through second exhaust pipe（18）It is communicated with the second deflation valve（10）, the bottom air plenum（7）
Bottom pass through the second air inlet pipe（14）With third air inlet pipe（15）Respectively with the second gas injection valve（8）With third gas injection valve
（9）It is connected.
2. a kind of easy soil carbon flux measuring device according to claim 1, it is characterised in that：First dioxy
Change concentration of carbon probe（2）With the first humiture probe（3）Pass through signal wire and external data record instrument respectively（6）It is connected.
3. a kind of easy soil carbon flux measuring device according to claim 1, it is characterised in that：Second dioxy
Change concentration of carbon probe（17）With the second humiture probe（16）Pass through signal wire and external data record instrument respectively（6）It is connected.
4. a kind of easy soil carbon flux measuring device according to claim 1, it is characterised in that：First dioxy
Change concentration of carbon probe（2）With the second gas concentration lwevel probe（17）All use GMP222 Vaisala Carbocap titanium dioxides
Concentration of carbon probe.
5. a kind of easy soil carbon flux measuring device according to claim 2 or 3, it is characterised in that：The outside
Data logger（6）Using CR-1000 Campbell Scientific data loggers.
6. a kind of easy soil carbon flux measuring device according to claim 1, it is characterised in that：The seal box
（11）Using being detachably connected, it is provided with soil sample inside it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721651307.3U CN207675759U (en) | 2017-12-01 | 2017-12-01 | A kind of easy soil carbon flux measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721651307.3U CN207675759U (en) | 2017-12-01 | 2017-12-01 | A kind of easy soil carbon flux measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207675759U true CN207675759U (en) | 2018-07-31 |
Family
ID=62967037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721651307.3U Expired - Fee Related CN207675759U (en) | 2017-12-01 | 2017-12-01 | A kind of easy soil carbon flux measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207675759U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490146A (en) * | 2018-12-11 | 2019-03-19 | 中国科学院大气物理研究所 | Land-atmosphere interface gas exchanges flux calibration system and method |
| CN109655856A (en) * | 2018-12-14 | 2019-04-19 | 衡阳师范学院 | The device and method of static collection rapid survey radon effective diffusion cofficient in the film |
| CN110824140A (en) * | 2019-10-22 | 2020-02-21 | 浙江农林大学 | Soil carbon flux measuring device |
-
2017
- 2017-12-01 CN CN201721651307.3U patent/CN207675759U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490146A (en) * | 2018-12-11 | 2019-03-19 | 中国科学院大气物理研究所 | Land-atmosphere interface gas exchanges flux calibration system and method |
| CN109655856A (en) * | 2018-12-14 | 2019-04-19 | 衡阳师范学院 | The device and method of static collection rapid survey radon effective diffusion cofficient in the film |
| CN109655856B (en) * | 2018-12-14 | 2022-02-18 | 衡阳师范学院 | Device and method for rapidly measuring effective diffusion coefficient of radon in film by electrostatic collection method |
| CN110824140A (en) * | 2019-10-22 | 2020-02-21 | 浙江农林大学 | Soil carbon flux measuring device |
| CN110824140B (en) * | 2019-10-22 | 2020-10-30 | 浙江农林大学 | Soil carbon flux measuring device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180731 Termination date: 20191201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |