CN109632686A - Closed layered soil carbon dioxide flux measuring device and method - Google Patents
Closed layered soil carbon dioxide flux measuring device and method Download PDFInfo
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- CN109632686A CN109632686A CN201910066808.2A CN201910066808A CN109632686A CN 109632686 A CN109632686 A CN 109632686A CN 201910066808 A CN201910066808 A CN 201910066808A CN 109632686 A CN109632686 A CN 109632686A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 239000002689 soil Substances 0.000 title claims abstract description 68
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 48
- 230000004907 flux Effects 0.000 title claims abstract description 43
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 30
- 238000005070 sampling Methods 0.000 claims description 36
- 239000007787 solid Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000000691 measurement method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000004158 soil respiration Methods 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
-
- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2294—Sampling soil gases or the like
Abstract
The invention relates to the technical field of carbon dioxide flux measurement, in particular to a device and a method for measuring the carbon dioxide flux of closed layered soil, and relates to a device used in the method. The invention carries out measurement along with the variation in space and time, so that the measured data result is more comprehensive, the contrast result is more vivid, and the soil carbon dioxide flux of a certain area can be accurately reflected.
Description
Technical field
The present invention relates to carbon dioxide flux measuring technical field more particularly to a kind of sealed layer soil carbon dioxides
Flux measuring device and method.
Background technique
Soil carbon dioxide is one of major gaseous component of soil air, and soil carbon dioxide flux is as land and greatly
The important measure index of vapor interface greenhouse gases exchange capacity reflects soil physics, chemistry, biological property and the mankind to soil benefit
With, situations such as underground mineral resources, karst, Soil carbon storage is very huge, is 2 times of atmosphere charcoal, and 3 times of land plant, soil
Earth Carbon flux is 10 times of petroleum fuel and resource summation of opening up forest, soil respiration proportion ten in entire ecology breathing
It is point huge, while soil carbon flux has very uncertain, the variation on room and time, existing measuring technique and method
Middle sampling process is single, does not have representativeness, can not accurately embody some region of soil carbon dioxide flux.
Summary of the invention
The purpose of the present invention is to solve sampling process existing in the prior art is single, do not have representativeness, it can not
The problems such as accurately embodying some region of soil carbon dioxide flux, and a kind of sealed layer soil carbon dioxide proposed
Flux measuring device and method.
To achieve the goals above, present invention employs following technical solutions: a kind of sealed layer soil carbon dioxide
Flux measuring device, including thief rod and sealed type sampling device, the thief rod include solid cylindrical rod, the solid cylindrical rod
The left and right sides be socketed rubber sleeve, the bottom dead center position of the solid cylindrical rod is welded with vertical bar, and vertical bar with it is solid
Cylindrical bar is in plumbness, and the outer wall of the vertical bar is machined with graduation mark from top to bottom, and the bottom end of the vertical bar is equipped with
Cylinder, the inner cavity of the sealed type sampling device are plugged with handlebar stem, and sealed type sampling device is extended in one end of the handlebar stem
Top, and the other end of handlebar stem extends the bottom end of sealed type sampling device and is connected with sealing-plug, connects handlebar stem and sealing-plug
Connecting rod outer wall offer scale, for observing the depth of sealing-plug, the material of sealing-plug is rubber material support, sealing-plug
Effect be to be isolated air in sealed type sampling device and following air, playing can connect well with soil periphery wall
Touching sealing, the left and right sides of the sealed type sampling device is plugged with escape pipe and air inlet pipe, the front and back of sealed type sampling device respectively
Two sides are controlled and communicate or completely cut off, bottom end of the sealed type sampling device or so two with outside air there are two air stream open gate
The equal screw in side is connected with one end of steel nail, and the other end of two steel nails is inserted into soil horizon, and steel nail plays fixed closed formula
The effect of sampler.
A kind of sealed layer soil carbon dioxide flux measurement method, which comprises the following steps:
S1, time of measuring is formulated；
S2, selection measurement address；
S3, personnel planning prepare measuring tool；
S4, nonrandomness Stratified Sampling；
S5, measurement sample data；
S6, calculating analysis is carried out according to measurement data；
S7, data Calculation results are arranged；
S8, summary.
Preferably, address is measured in S2 and is divided into plateau, mountainous region, Plain, hills, five kinds of basin landform, each landform according to
Vegetation coverage is divided into high, medium and low three pieces of regions.
Preferably, personnel planning selectes each sub-group leader, often the specific steps are personnel are divided into several groups in S3
A group is equipped with 1 medical staff, is equipped with first-aid medicine, and every group member is equipped with a satellite phone, formulates emergency contact, note
The position of the nearest hospital in record measurement area and contact method, to prevent the generation of accident, formulation return date and traffic side
Formula.
Preferably, the specific steps are bored by thief rod to measured zone underground layer for nonrandomness Stratified Sampling in S4
It takes a depth to be not less than 1 meter of hole, pedotheque taking-up is discarded.
Preferably, sample data is measured in S5 drill through a depth to measured zone underground layer specifically by thief rod
Degree is not less than the hole of 200cm, and escape pipe and air inlet pipe are connected with infrared analyzer respectively, sealing-plug is inserted into hole
In, instrument switch is opened, is the initial CO for measuring 0-20cm soil layer to instrument readings stabilization2Concentration value records X10, close air
Circulate door, after spending two minutes, records measured value X11, (X11-X10) be the first measuring point CO2Concentration variable quantity, infrared analysis
Instrument measures the data and record of soil, and data include the volume V (m in soil hole3), hole depth H (m), hole wall surface product S (m2), see
Survey time interval △ T (h), sample time and sampling region.
Preferably, S6 fall into a trap point counting analysis be specially by measurement data result import soil carbon dioxide flux calculation formula into
Row calculates, and calculation formula is soil CO2Flux F (mg/m2H)=K × △ X × (V+ π R2× H)/2 π R × H × △ T, V be sealing
The volume of formula sampler, R are thief rod bottom end radius, and K is conversion coefficient=1.8 (25 DEG C, 101.325KPa), and △ X is observation
Front and back gas concentration lwevel difference opens instrument air above door, sealing-plug is quickly moved down, is such as moved on at 40cm, observes
When instrument readings are stablized, record reading X20, as the second measuring point soil CO2Initial concentration value, is then shut off air gate, and 2 minutes
After read X21, (X21-X20) it is the second measuring point soil CO2Concentration variable quantity, and then the CO of 0-40cm can be calculated2Flux, with
It is a measuring point that this, which analogizes every 20cm, measures 200cm depth always, then repeats above-mentioned steps and surveys 2 times, with the same depth sought
The CO of degree2The average value of flux, the CO as the depth2Amount of flux, this average value for using 3 numerical value lead to as the depth
Magnitude, improves measurement accuracy, and time of measuring used in a measuring point measures initial CO after opening air stream open gate 1 minute2Concentration
Value measures CO after closing air stream open gate 2 minutes2Concentration changing value, therefore complete a measuring point measurement and need 3 minutes, 1
The hole of 200cm depth repeats to survey 3 times, then completing the time of measuring of a complete hole if being a measuring point every 20cm
It is 90 minutes, instrument is then moved on into next hole and is measured, working efficiency with higher also improves measurement accuracy
With the accuracy of calculated result.
Preferably, data Calculation results are arranged the same area, different time, different depths specially in S7
The soil carbon dioxide flux record of degree is one group together, and pattern is made to every group of record data and compares.
Preferably, summarize in S8 includes being summarized to data Calculation results and to the workload and work of survey crew
It summarizes as efficiency.
Proposed by the present invention, beneficial effect is:
The present invention carries out long-term continuous sampling by the region to different terrain over time, then by choosing not
It is compared and analyzed with deep soil layer, different vegetation coverages and different subteranean animal distributive laws, on room and time
Variation measure so that measured data result is more comprehensive, comparing result is distincter, representative, can be accurate
The some region of soil carbon dioxide flux of embodiment, prediction soil arrive atmosphere carbon dioxide releasing amount, estimation certain depth
The carbon dioxide amount of storage of soil observes the flux of soil different depth carbon dioxide, can continuously recycle survey, without waiting for.It can
Working efficiency will be improved, the computational accuracy of flux can be increased substantially by repeatedly measuring average value, be fathomed until reaching sampling
The depth that bar excavates, while improving the accuracy of measurement result and reducing cost.
Detailed description of the invention
Fig. 1 is inventive closure formula sampler structure diagram；
Fig. 2 is thief rod structural schematic diagram of the present invention.
In figure: 1, solid cylindrical rod, 2, rubber sleeve, 3, steel nail, 4, vertical bar, 5, cylinder, 6, sealed type sampling device, 7, handle
Bar, 8, sealing-plug, 9, escape pipe, 10, air inlet pipe, 11, soil horizon, 12, air stream open gate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
A kind of sealed layer soil carbon dioxide flux measuring device, including thief rod and sealed type sampling device 6, it is described
Thief rod includes solid cylindrical rod 1, and the left and right sides of the solid cylindrical rod 1 is socketed rubber sleeve 2, the solid cylindrical rod
1 bottom dead center position is welded with vertical bar 4, and vertical bar 4 and solid cylindrical rod 1 are in plumbness, the outer wall of the vertical bar 4 from
It is machined with graduation mark up to lower, the bottom end of the vertical bar 4 is equipped with cylinder 5, and the inner cavity of the sealed type sampling device 6 is plugged with
The top of sealed type sampling device 6 is extended in one end of handlebar stem 7, the handlebar stem 7, and the other end of handlebar stem 7 extends envelope
The bottom end of enclosed sampler 6 is connected with sealing-plug 8, and the connecting rod outer wall of connection handlebar stem 7 and sealing-plug 8 offers scale, uses
It is rubber material support in the material of the depth of observation sealing-plug 8, sealing-plug 8, the effect of sealing-plug 8 is by sealed type sampling device
Air is isolated with following air in 6, and sealing, the closed sampling can be contacted well with soil periphery wall by playing
The left and right sides top of device 6 is plugged with escape pipe 9 and air inlet pipe 10 respectively, and there are two the front and rear sides of the sealed type sampling device
Air stream open gate 12, the bottom end left and right sides screw of the sealed type sampling device 6 are connected with one end of steel nail 3, and two institutes
The other end insertion soil horizon 11 of steel nail 3 is stated, steel nail 3 plays the role of fixed closed formula sampler 6.
A kind of sealed layer soil carbon dioxide flux measurement method, which comprises the following steps:
S1, time of measuring is formulated；
S2, selection measurement address, are divided into plateau, mountainous region, Plain, hills, five kinds of basin landform, each landform is according to vegetation
Coverage rate is divided into high, medium and low three pieces of regions；
S3, personnel planning prepare measuring tool；Personnel planning is selected the specific steps are personnel are divided into several groups
Fixed each sub-group leader, each group are equipped with 1 medical staff, are equipped with first-aid medicine, and every group member is equipped with a satellite phone, system
Determine emergency contact, the position of the nearest hospital in record measurement area and contact method, to prevent the generation of accident, formulation is returned
Journey date and mode of transportation.
S4, nonrandomness Stratified Sampling；The specific steps are pass through thief rod to measured zone underground for randomness Stratified Sampling
Soil horizon drills through the hole that a depth is not less than 1 meter, and pedotheque taking-up is discarded.
S5, measurement sample data drill through a depth to measured zone underground layer specifically by thief rod and are not less than
Escape pipe and air inlet pipe are connected by the hole of 200cm with infrared analyzer respectively, and sealing-plug is inserted into hole, open instrument
Device switch, measures the initial CO of initial 0-20cm soil layer when instrument readings are stablized2Concentration value records X10, close air circulation
Door 12 after spending two minutes, records measured value X11, (X11-X10) be the first measuring point CO2Concentration variable quantity, infrared analyzer
The data and record of soil are measured, data include the volume V (m in soil hole3), hole depth H (m), hole wall surface product S (m2), observation
Time interval △ T (h), sample time and sampling region.
S6, calculating analysis is carried out according to measurement data；Measurement data result is specially imported into soil carbon dioxide flux
Calculation formula is calculated, and calculation formula is soil CO2Flux F (mg/m2H)=K × △ X × (V+ π R2×H)/2πR×H×△
T, V are the volume of sealed sampler, and R is thief rod bottom end radius, and K is conversion coefficient=1.8 (25 DEG C, 101.325KPa),
△ X is observation front and back gas concentration lwevel difference, opens the air stream open gate 12 of instrument side, sealing-plug 8 is quickly moved down, such as
It moves on at 40cm, when optical viewer stable reading, record reading X20, the as initial CO of the second measuring point soil layer2Concentration value, then
X is read after closing air stream open gate 12,2 minutes21, (X21-X20) be the second measuring point soil layer CO2Concentration variable quantity, Jin Erke
Calculate the soil CO of 0-40cm2Flux, and so on every 20cm be a measuring point, measure always 200cm depth, then weigh again
Multiple above-mentioned steps are surveyed 2 times, with the soil CO for the same depth sought2The average value of flux, the soil CO as the depth2Amount of flux,
This average value for using 3 numerical value improves measurement accuracy as the amount of flux of the depth.Time of measuring used in one measuring point,
Initial CO is measured after opening air stream open gate 12 1 minutes2Concentration value measures CO after closing air stream open gate 2 minutes2Concentration variation
Value, therefore complete a measuring point measurement and need 3 minutes, the hole of 1 200cm depth repeats if being a measuring point every 20cm
It surveys 3 times, then the time of measuring for completing a complete hole is 90 minutes, instrument is then moved on into next hole and is surveyed
Amount, working efficiency with higher also improve the accuracy of measurement accuracy and calculated result.
S7, data Calculation results are arranged；Specially by the same area, different time, different depth soil
Earth carbon dioxide flux record is one group together, and pattern is made to every group of record data and compares.
S8, summary, including being summarized to data Calculation results and to the workload and working efficiency of survey crew
It summarizes.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of sealed layer soil carbon dioxide flux measuring device, which is characterized in that including thief rod and closed take
Sample device (6), the thief rod include solid cylindrical rod (1), and the left and right sides of the solid cylindrical rod (1) is socketed rubber sleeve
(2), the bottom dead center position of the solid cylindrical rod (1) is welded with vertical bar (4), and vertical bar (4) is in solid cylindrical rod (1)
Plumbness, the outer wall of the vertical bar (4) are machined with graduation mark from top to bottom, and the bottom end of the vertical bar (4) is equipped with cylinder
(5), the front and rear sides of the sealed type sampling device (6) are there are two air stream open gate (12), the sealed type sampling device (6) it is interior
Chamber is plugged with handlebar stem (7), and the top of sealed type sampling device (6), and handlebar stem (7) are extended in one end of the handlebar stem (7)
The other end extend the bottom end of sealed type sampling device (6) and be connected with sealing-plug (8), connection handlebar stem (7) and sealing-plug (8)
Connecting rod outer wall offers scale, and for observing the depth of sealing-plug (8), the material of sealing-plug (8) is rubber material support, close
The effect of blocking (8) is to be isolated sealed type sampling device (6) interior air with following air, and playing can be with soil periphery
Wall contacts sealing well, and the left and right sides top of the sealed type sampling device (6) is plugged with escape pipe (9) and air inlet pipe respectively
(10), the bottom end left and right sides screw of the sealed type sampling device (6) is connected with one end of steel nail (3), and two steel
The other end for following closely (3) is inserted into soil horizon (11), and steel nail (3) plays the role of fixed closed formula sampler (6).
2. a kind of sealed layer soil carbon dioxide flux measurement method, which comprises the following steps:
S1, time of measuring is formulated；
S2, selection measurement address；
S3, personnel planning prepare measuring tool；
S4, nonrandomness Stratified Sampling；
S5, measurement sample data；
S6, calculating analysis is carried out according to measurement data；
S7, data Calculation results are arranged；
S8, summary.
3. a kind of sealed layer soil carbon dioxide flux measurement method according to claim 2, which is characterized in that S2
Middle measurement address is divided into plateau, mountainous region, Plain, hills, five kinds of basin landform, each landform according to vegetation coverage be divided into it is high,
In, low three pieces of regions.
4. a kind of sealed layer soil carbon dioxide flux measurement method according to claim 2, which is characterized in that S3
Middle personnel planning selectes each sub-group leader the specific steps are personnel are divided into several groups, and each group is equipped with 1 medical care
Personnel are equipped with first-aid medicine, and every group member is equipped with a satellite phone, formulate emergency contact, and record measurement area is nearest
The position of hospital and contact method formulate return date and mode of transportation to prevent the generation of accident.
5. a kind of method of sealed layer soil carbon dioxide flux measuring device according to claim 1 to 2, special
Sign is that the specific steps are drill through a depth to measured zone underground layer by thief rod for nonrandomness Stratified Sampling in S4
Degree is not less than the hole of 200cm.
6. a kind of method of sealed layer soil carbon dioxide flux measuring device according to claim 1 to 2, special
Sign is that measurement sample data drills through a depth to measured zone underground layer specifically by thief rod and is not less than in S5
Sealing-plug (8) are inserted into hole, respectively by escape pipe (9) and air inlet pipe (10) and infrared analyzer phase by the hole of 200cm
Even, instrument switch is opened, the initial CO of 0-20cm soil layer is measured2Concentration value records X10, close air stream open gate (12), cross two
After minute, measured value X is recorded11, (X11-X10) be the first measuring point CO2Concentration variable quantity, infrared analyzer measure soil
The data and record of hole wall, data include the volume V (m in soil hole3), hole depth H (m), hole wall surface product S (m2), observation time
It is spaced △ T (h), sample time and sampling region.
7. a kind of sealed layer soil carbon dioxide flux measurement method, feature according to claim 2 and 7 exist
It is specially to calculate measurement data result importing soil carbon dioxide flux calculation formula in, S6 point counting analysis of falling into a trap, calculates
Formula is soil CO2Flux F (mg/m2H)=K × △ X × (V+ π R2× H)/2 π R × H × △ T, V be the body of sealed sampler
Product, R are thief rod bottom end radius, and K is conversion coefficient=1.8 (25 DEG C, 101.325KPa), and △ X is observation front and back carbon dioxide
Concentration difference opens the air stream open gate (12) of sampler side, sealing-plug (8) is quickly moved down, is such as moved on at 40cm, observes
When instrument readings are stablized, record reading X20, the initial CO of as the second measuring point2Concentration value is then shut off air stream open gate (12), 2
X is read after minute21, (X21-X20) it is the second measuring point CO2Concentration variable quantity, and then the CO of 0-40cm can be calculated2Flux, with
It is a measuring point that this, which analogizes every 20cm, measures 200cm depth always, then repeats above-mentioned steps and surveys 2 times, with the same depth sought
CO2The average value of flux, the CO as the depth2Amount of flux, this average value for using 3 numerical value is as deep soil CO2
Amount of flux, improve measurement accuracy, time of measuring used in a measuring point measures initial CO after opening air stream open gate 1 minute2
Concentration value measures CO after closing air stream open gate 2 minutes2Concentration changing value, therefore complete a measuring point measurement and need 3 minutes, 1
The hole of a 200cm depth repeats to survey 3 times, then when completing the measurement of a complete hole if being a measuring point every 20cm
Between be 90 minutes, instrument is then moved on into next hole and is measured, working efficiency with higher, also improve measurement essence
The accuracy of degree and calculated result.
8. a kind of sealed layer soil carbon dioxide flux measurement method according to claim 2, which is characterized in that S7
In to data Calculation results arranged specially by the same area, different time, different depth soil carbon dioxide
Flux record is one group together, and pattern is made to every group of record data and compares.
9. a kind of sealed layer soil carbon dioxide flux measurement method according to claim 2, which is characterized in that S8
Middle summary includes being summarized to data Calculation results and being summarized to the workload and working efficiency of survey crew.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910066808.2A CN109632686B (en) | 2019-01-24 | 2019-01-24 | Closed layered soil carbon dioxide flux measuring device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910066808.2A CN109632686B (en) | 2019-01-24 | 2019-01-24 | Closed layered soil carbon dioxide flux measuring device and method |
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| CN109632686A true CN109632686A (en) | 2019-04-16 |
| CN109632686B CN109632686B (en) | 2021-06-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881109A (en) * | 2021-01-22 | 2021-06-01 | 上海建科环境技术有限公司 | High-precision soil gas single-hole multilayer sampling device |
| CN114428071A (en) * | 2021-11-30 | 2022-05-03 | 核工业北京地质研究院 | CO in space air and shallow soil2Method for quickly measuring concentration on site |
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| CN101131352A (en) * | 2007-06-04 | 2008-02-27 | 高程达 | In-situ measuring method and device for solum carbon dioxide flux |
| CN101622945A (en) * | 2008-07-11 | 2010-01-13 | 中国科学院沈阳应用生态研究所 | Open box system for determining whole tree gas exchange |
| CN201429595Y (en) * | 2009-01-21 | 2010-03-24 | 福建师范大学 | Air chamber for measuring grassland CO* flux |
| CN108469422A (en) * | 2018-03-13 | 2018-08-31 | 山东科技大学 | A kind of aeration zone CO 2 measuring method |
| CN108692994A (en) * | 2018-04-24 | 2018-10-23 | 中国石油天然气股份有限公司 | A kind of injection gas displacement well site aerated zone soil carbon dioxide flux monitoring device and method |
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2019
- 2019-01-24 CN CN201910066808.2A patent/CN109632686B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131352A (en) * | 2007-06-04 | 2008-02-27 | 高程达 | In-situ measuring method and device for solum carbon dioxide flux |
| CN101622945A (en) * | 2008-07-11 | 2010-01-13 | 中国科学院沈阳应用生态研究所 | Open box system for determining whole tree gas exchange |
| CN201429595Y (en) * | 2009-01-21 | 2010-03-24 | 福建师范大学 | Air chamber for measuring grassland CO* flux |
| CN108469422A (en) * | 2018-03-13 | 2018-08-31 | 山东科技大学 | A kind of aeration zone CO 2 measuring method |
| CN108692994A (en) * | 2018-04-24 | 2018-10-23 | 中国石油天然气股份有限公司 | A kind of injection gas displacement well site aerated zone soil carbon dioxide flux monitoring device and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112881109A (en) * | 2021-01-22 | 2021-06-01 | 上海建科环境技术有限公司 | High-precision soil gas single-hole multilayer sampling device |
| CN114428071A (en) * | 2021-11-30 | 2022-05-03 | 核工业北京地质研究院 | CO in space air and shallow soil2Method for quickly measuring concentration on site |
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|---|---|
| CN109632686B (en) | 2021-06-04 |
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