CN202033357U - Root system CO2 in-situ automatic measuring device - Google Patents
Root system CO2 in-situ automatic measuring device Download PDFInfo
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- CN202033357U CN202033357U CN2010205894101U CN201020589410U CN202033357U CN 202033357 U CN202033357 U CN 202033357U CN 2010205894101 U CN2010205894101 U CN 2010205894101U CN 201020589410 U CN201020589410 U CN 201020589410U CN 202033357 U CN202033357 U CN 202033357U
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Abstract
The utility model relates to a root system CO2 in-situ automatic measuring device which consists of a locating rod, a gas collecting head, a soil moisture and temperature probe, a respiratory chamber, a vent pipe, a solenoid valve, a CO2 analyzer, a closed-loop air chamber, a filter, a mass and flow sensor, a CO2 absorber, a data memory, a communication interface, a liquid crystal display, a keyboard, a singlechip, an environment sensor, a pulse width speed controller, a gas sampling pump, a pipeline moisture and humidity sensor, a gas sampling pipe, an electromagnetic guide valve and a root system gas sampling pipe. By adopting the device, measurement and record of respiration of multiple measuring points can be realized automatically by one infrared CO2 analyzer so as to carry out field in-situ long-term automatic measurement, and the disadvantages that the existing soil CO2 in-situ measurement only can reflect the flux of the soil and the atmosphere interface, can not refine soil respiration component and can not realize repeated comparison observation of multiple experimental regions, the operation is inconvenient, and the measuring device is not easy to carry are overcome.
Description
Technical field
The utility model relates to a kind of root system CO
2The original position apparatus for automatically measuring.This device can realize that the original position that soil respiration and root system of plant are breathed measures automatically, can calculate root system CO
2Switching rate, soil CO
2Respiratory rate is carried out soil CO
2Show amount and latent quantity research.
Background technology
Soil carbon is acknowledged as " black hole " that carbon is lost in the whole world at present, and utilization variation in soil has influence to the soil respiration process, and the slight variation that any soil utilizes is all to soil CO
2Flux causes tremendous influence, soil CO
2Flux is measured and the research of soil respiration mechanism is a global difficult problem and focus.Early stage traditional breath measuring method is to imbed exhaust tube in the soil, artificial extracting gases is put into sampler bag again, taking back the laboratory analyzes with spectrometer, this method is long experimental period, storage process changes many, the manually-operated error is big, is not easy to the lot of data collection, can not realize long-term Continuous Observation.Particularly to breathe be the main process of soil respiration to root system of plant, and how measuring root system respiration is a global problem to the contribution rate of soil respiration.Another kind method is directly with CO
2Probe adds to gather places into the soil behind the tracheae, and many probes are imbedded in layering, because the needs of test are CO
2Flux observation often needs differential profile to bury underground, generally does more than four layers, for the reliability of confirmatory experiment, need do a plurality of repetitions simultaneously, and the complete system of a cover then needs 10-20 sensor, CO
2Itself costs an arm and a leg sensor, generally needs the input of hundreds of thousands.This method also has drawback simultaneously, and is excessive as moisture, influences CO
2The accuracy that analyzer is measured during sensor is directly placed into the soil, is also very easily irrigated, the influence of rainfall, the sensor damage of soaking easily.And owing to use CO in the system in a large number
2Sensor, because each sensor all exists conforming error, the consistance of data is affected, the measurement result accuracy of this method is worth discussion.
Present already used many soil CO
2Flux in-situ determination method and device can only reflect the flux of soil and atmosphere interface, and component that can not refinement soil respiration causes can't furtheing investigate soil respiration mechanism, and still needs a complete CO
2Analyser cooperates, and can not realize the repetition comparative observation of a plurality of Experimental Areas, owing to need manually-operated, uses inconvenience, exposes many shortcomings and drawback.Experiment showed, soil layer CO
2Be determined at the soil horizon structure by disturbance after, balance for a long time is unwell to the field portable formula and measures.Therefore, research and develop different soils and utilize root system CO under the mode
2It is particularly necessary that the original position apparatus for automatically measuring seems.
Summary of the invention
The purpose of this utility model provides a kind of root system CO
2Original position apparatus for automatically measuring, this device are to collect head, soil moisture temp probe, respiratory chamber, gas outlet, solenoid valve, CO by backstay, gas
2Analyzer, closed circuit air chamber, filtrator, mass flow sensor, CO
2Absorber, data memory, communication interface, liquid crystal display displays and keyboard, single-chip microcomputer, environmental sensor, pulse width speed regulator, gas samping pump, pipeline Temperature Humidity Sensor, atmospheric sampling pipe, electromagnetism island valve, root system gas sample tube are formed, and this device can be realized automatically with an infrared CO
2The long-term measurement automatically of original position is in the open air finished in the breathing that analyzer is measured and write down a plurality of measurement points, the high conformity of data, and the equipment less investment, power consumption is little, has overcome existing soil CO
2The flux in-site detecting can only reflect soil and atmosphere interface flux, can not refinement soil respiration component, repetition comparative observation that can not a plurality of Experimental Areas, operation inconvenience and defective such as not portable.This device can be placed in field or the forest land, by solar powered.
A kind of root system CO described in the utility model
2Original position apparatus for automatically measuring, this device are to collect head, soil moisture temp probe, respiratory chamber, gas outlet, solenoid valve, CO by backstay, gas
2Analyzer, closed circuit air chamber, filtrator, mass flow sensor, CO
2Absorber, data memory, communication interface, liquid crystal display displays and keyboard, single-chip microcomputer, environmental sensor, the pulse width speed regulator, gas samping pump, the pipeline Temperature Humidity Sensor, the atmospheric sampling pipe, electromagnetism island valve, the root system gas sample tube is formed, wherein gas collection head (2) is installed in respectively in first backstay (1) and second backstay (3), gas is collected head (2) and is connected with electromagnetism island valve (26) by gas sample tube (27) respectively, electromagnetism island valve (26) is connected with single-chip microcomputer (19) by cable, electromagnetism island valve (26) is connected with the air intake opening of gas samping pump (22) by escape pipe (24), and gas samping pump (22) is connected with the PWM output interface of single-chip microcomputer (19) by pulse width speed regulator (21).
Connect first respiratory chamber (5) and second respiratory chamber (7) on described electromagnetism island valve (26) input interface, the electronic loam cake control line of first respiratory chamber (5) and second respiratory chamber (7) is connected with single-chip microcomputer (19).
Described gas samping pump (22) is connected with Temperature Humidity Sensor (23), Temperature Humidity Sensor (23) is connected with bypass solenoid valve (9) one ends by threeway one end, the other end is connected with filtrator (12), and solenoid valve (9) is connected with single-chip microcomputer (19) by cable; Gas mass flow quantity sensor (13) one ends are connected with filtrator (12), and the other end is connected with three-way solenoid valve (14), and gas mass flow quantity sensor (13) is connected with single-chip microcomputer (19) by cable; The upper and lower port of absorption unit of dioxide carbon (15) is connected with three-way solenoid valve (14) respectively, and the other end of three-way solenoid valve (14) directly is connected with the air chamber (11) of sample gas, and three-way solenoid valve (14) is connected with single-chip microcomputer (19) by cable.
Carbon dioxide analyser (10) is housed in the described air chamber (11), and carbon dioxide analyser (10) is connected with single-chip microcomputer (19) by cable, is connected with gas outlet (6) by threeway (8) by tracheae on the top of air chamber (11).
Described upper end at single-chip microcomputer (19) connects LCD (18) and envirment factor sensor (20), and the lower end of single-chip microcomputer (19) connects soil moisture temperature sensor (4), data memory (16) and communication interface (17).
A kind of root system CO described in the utility model
2The original position apparatus for automatically measuring, this device is made up of respiratory chamber, atmospheric sampling pipe and the measuring and controlling on the gas sample tube that is installed in different depth in the soil, the face of land, control and measurement mechanism are realized by a single-chip microcomputer, measure CO respectively by each gas sample tube is switched
2Content, write down envirment factor simultaneously, to the circulation of soil carbon, the root system carbon emission with the correlativity of environment, has realized and CO
2The original position at exchange interface is observed automatically, is a kind of novel original position automatic Synthesis recording geometry.
A kind of root system CO described in the utility model
2The original position apparatus for automatically measuring, this device is the gas sample tube layering to be placed into the soil need the degree of depth of observation, mounted thereto soil surface of surface soil respiratory chamber, by Single-chip Controlling electromagnetism island valve and gas samping pump, respectively with all levels extracting to gas be sent to CO
2Analyzer is measured, can insert 11 measurement pipelines and carry out the extracting sampling, also can insert auxiliary environmental sensor simultaneously, as environmental element sensors such as wind speed, soil moisture, the soil moisture, radiation, rainfall, atmospheric pressures, single-chip computer control system is by pressing key control and liquid crystal display displays, carry out the setting of system fortune interval and operating parameters, control and transmit the function of data by computer interface, in memory chip, personnel for deliberation carry out interim data analysis to single-chip microcomputer with the data-storing that collects.This device can be divided into the gas extracting two groups, can carry out than survey two kinds of sample plots.This device can be installed in the field and carry out long-term observation automatically.
A kind of root system CO described in the utility model
2The original position apparatus for automatically measuring, be that a plurality of gas extraction tubes are imbedded in the different depth of soil, a plurality of tracheaes are linked on the solenoid valve island, carry out gating by single-chip microcomputer, one road tracheae is set separately links to each other, take a breath with the extracting reference gas with to gas circuit with the atmosphere of near surface.The extracting of gas is to be connected with sampling pump by pulse width modulation circuit of Single-chip Controlling, can be as required by the programmed control flow.A Temperature Humidity Sensor is arranged in the pipeline behind the gating, and single-chip microcomputer will write down the humiture value of institute's extracting gas, have an air strainer in the pipeline, to filter out impurities and to stop hydrone to enter.A mass flow sensor is arranged in the pipeline, can measure the flow of each pipeline in real time, this signal is sent to single-chip microcomputer, and single-chip microcomputer can be adjusted the rotating speed of pump by pulse width modulation circuit according to preset value, to reach each road gas flow unanimity.Have a CO in the pipeline
2Absorber, as the correction usefulness at zero point, it switches by a three-way solenoid valve.The gas that needs to measure finally is sent to a closed circuit CO
2Analyzer is measured, and measurement result is sent to single-chip microcomputer stores.Final gaseous emission is in atmosphere.A by-pass tee exhaust solenoid valve is arranged in the pipeline, and before to the gasmetry of every road, when changing pipeline gas, the gas of big flow is discharged in the atmosphere by this three-way solenoid valve bypass, is detained gas to remove in the pipeline.A LCD is arranged in this system, but the real-time service data of display system, and have button to adjust to operational factor.
The great advantage of this device is absorption and the discharging that has taken into full account between root system respiration, soil respiration and the atmosphere, and CO
2The relation of flux and envirment factor, it is single to have overcome existing apparatus measures key element, the field operation inconvenience, can not the original position long-term situation of observation has automatically realized CO
2The INTEGRATED SIGHT of migration rule has greatly advanced soil CO
2Flux research.
Description of drawings
Fig. 1 is the utility model structural representation
Embodiment
Further describe and provide embodiment below in conjunction with accompanying drawing.
The purpose of this utility model provides a kind of root system CO
2Original position apparatus for automatically measuring, this device are to collect head, soil moisture temp probe, respiratory chamber, gas outlet, solenoid valve, CO by backstay, gas
2Analyzer, closed circuit air chamber, filtrator, mass flow sensor, CO
2Absorber, data memory, communication interface, liquid crystal display displays and keyboard, single-chip microcomputer, environmental sensor, pulse width speed regulator, gas samping pump, pipeline Temperature Humidity Sensor, atmospheric sampling pipe, electromagnetism island valve, root system gas sample tube are formed, and this device can be realized automatically with an infrared CO
2The long-term measurement automatically of original position is in the open air finished in the breathing that analyzer is measured and write down a plurality of measurement points, the high conformity of data, and the equipment less investment, power consumption is little, has overcome existing soil CO
2Flux in-situ determination method and device can only reflect soil and atmosphere interface flux, can not refinement soil respiration component, defective such as repetition comparative observation, operation that can not a plurality of Experimental Areas be inconvenient and not portable.This device can be placed in field or the forest land, by solar powered.
A kind of root system CO described in the utility model
2Original position apparatus for automatically measuring, this device are to collect head, soil moisture temp probe, respiratory chamber, gas outlet, solenoid valve, CO by backstay, gas
2Analyzer, closed circuit air chamber, filtrator, mass flow sensor, CO
2Absorber, data memory, communication interface, liquid crystal display displays and keyboard, single-chip microcomputer, environmental sensor, the pulse width speed regulator, gas samping pump, the pipeline Temperature Humidity Sensor, the atmospheric sampling pipe, electromagnetism island valve, the root system gas sample tube is formed, wherein gas is collected 2 and is installed in respectively in first backstay 1 and second backstay 3, gas is collected 2 and is connected with electromagnetism island valve 26 by gas sample tube 27 respectively, electromagnetism island valve 26 is connected with single-chip microcomputer 19 by cable, electromagnetism island valve 26 is connected with the air intake opening of gas samping pump 22 by escape pipe 24, connect first respiratory chamber 5 and second respiratory chamber 7 on valve 26 input interfaces of electromagnetism island, the electronic loam cake control line of respiratory chamber 5 and respiratory chamber 7 is connected with single-chip microcomputer 19, gas samping pump 22 is connected with the PWM output interface of single-chip microcomputer 19 by pulse width speed regulator 21, gas samping pump 22 is connected with Temperature Humidity Sensor 23, Temperature Humidity Sensor 23 is connected with bypass solenoid valve 9 one ends by threeway one end, the other end is connected with filtrator 12, and solenoid valve 9 is connected with single-chip microcomputer 19 by cable; Gas mass flow quantity sensor 13 1 ends are connected with filtrator 12, and the other end is connected with three-way solenoid valve 14, and gas mass flow quantity sensor 13 is connected with single-chip microcomputer 19 by cable; The upper and lower port of absorption unit of dioxide carbon 15 is connected with three-way solenoid valve 14 respectively, and the other end of three-way solenoid valve 14 directly is connected with the air chamber 11 of sample gas, and three-way solenoid valve 14 is connected with single-chip microcomputer 19 by cable; Carbon dioxide analyser 10 is housed in the air chamber 11, and carbon dioxide analyser 10 is connected with single-chip microcomputer 19 by cable, is connected with gas outlet 6 by threeway 8 by tracheae on the top of air chamber 11; Upper end at single-chip microcomputer 19 connects LCD 18 and envirment factor sensor 20, and the lower end of single-chip microcomputer 19 connects soil moisture temperature sensor 4, data memory 16 and communication interface 17.
In use, device is placed on observation station, during two first backstays 1 and second backstay 3 placed into the soil respectively, eight gas sample tubes 27 were collected corresponding eight interfaces of drawing in 2 with on the solenoid valve island 26 by first backstay 1 and second backstay 3 by gas and are connected; Two soil first respiratory chambers 5 and second respiratory chamber 7 are installed in backstay top soil surface, and by two collection tube soil first respiratory chamber 5 and second respiratory chamber 7 are linked on 26 interfaces of corresponding solenoid valve island; Atmospheric sampling pipe 25 is linked on 26 interfaces of corresponding solenoid valve island, and timing working when arriving preset time, is measured beginning:
Atmospheric sampling is measured:
Soil respiration is measured:
Single-chip microcomputer 19 control electromagnetic valve islands 26 switch on the respiratory chamber 5, the extracting of carrying out certain hour earlier is to take a breath to pipeline, after finishing ventilation, the motor of single-chip microcomputer control breathing chambers 5 19 cuts out the respiratory chamber loam cake, and gas is sent to CO via flow sensor 13
2Analyzer 10 is measured, and single-chip microcomputer 19 is according to the flow rate calculation respiratory rate, simultaneously with CO
2Measured value and speed record are finished single-chip microcomputer control breathing chambers 19, measurement back 5 motors and are opened loam cake, continue to use the measurement of finishing breathing 7 with quadrat method;
Root system respiration is measured:
Single-chip microcomputer 19 control electromagnetic valve islands 26 switch on the first via root system sampling pipe 27, and gas is at first measured through Temperature Humidity Sensor 23, filter out impurities through filter 12 again and aqueous vapor after, measure flows through flow sensor 13, be sent to CO at last
2Analyzer 10 is measured, and this process does not need to calibrate (root system CO again
2Content generally is higher than Atmospheric CO
2Content), before the root system sample gas is measured, all need to suck contrast CO from atmospheric sampling pipe 25
2The atmosphere of content is cleared up measuring pipeline, and discharges fast by bypass solenoid valve 9;
Envirment factor is measured:
Single-chip microcomputer 19 carries out multi-channel data acquisition device collection conversion back record with the signal of envirment factor sensor 20;
Data presentation and transmission:
All measuring process data all show in real time by liquid crystal display displays device 18, single-chip microcomputer 19 is controlled in the data memory 16 that The ultimate results is stored, RS232 communication interface that is connected with single-chip microcomputer and RS485 interface 17 are to realize the communication and the control of computing machine.
A kind of root system CO described in the utility model
2The original position apparatus for automatically measuring, respiratory chamber, atmospheric sampling pipe and measuring and controlling by the gas sample tube that is installed in different depth in the soil, the face of land are formed, control and measurement mechanism are realized by a single-chip microcomputer, measure CO respectively by each gas sample tube is switched
2Content, write down envirment factor simultaneously, to the circulation of soil carbon, the root system carbon emission with the correlativity of environment, has realized and CO
2The original position at exchange interface is observed automatically, is a kind of novel original position automatic Synthesis observation device.
Claims (5)
1. root system CO
2The original position apparatus for automatically measuring is characterized in that this device is to collect head, soil moisture temp probe, respiratory chamber, gas outlet, solenoid valve, CO by backstay, gas
2Analyzer, closed circuit air chamber, filtrator, mass flow sensor, CO
2Absorber, data memory, communication interface, liquid crystal display displays and keyboard, single-chip microcomputer, environmental sensor, the pulse width speed regulator, gas samping pump, the pipeline Temperature Humidity Sensor, the atmospheric sampling pipe, electromagnetism island valve, the root system gas sample tube is formed, wherein gas collection head (2) is installed in respectively in first backstay (1) and second backstay (3), gas is collected head (2) and is connected with electromagnetism island valve (26) by gas sample tube (27) respectively, electromagnetism island valve (26) is connected with single-chip microcomputer (19) by cable, electromagnetism island valve (26) is connected with the air intake opening of gas samping pump (22) by escape pipe (24), and gas samping pump (22) is connected with the PWM output interface of single-chip microcomputer (19) by pulse width speed regulator (21).
2. a kind of root system CO according to claim 1
2The original position apparatus for automatically measuring is characterized in that connecting first respiratory chamber (5) and second respiratory chamber (7) on electromagnetism island valve (26) input interface, and the electronic loam cake control line of first respiratory chamber (5) and second respiratory chamber (7) is connected with single-chip microcomputer (19).
3. a kind of root system CO according to claim 1
2The original position apparatus for automatically measuring, it is characterized in that gas samping pump (22) is connected with Temperature Humidity Sensor (23), Temperature Humidity Sensor (23) is connected with bypass solenoid valve (9) one ends by threeway one end, the other end is connected with filtrator (12), and solenoid valve (9) is connected with single-chip microcomputer (19) by cable; Gas mass flow quantity sensor (13) one ends are connected with filtrator (12), and the other end is connected with three-way solenoid valve (14), and gas mass flow quantity sensor (13) is connected with single-chip microcomputer (19) by cable; The upper and lower port of absorption unit of dioxide carbon (15) is connected with three-way solenoid valve (14) respectively, and the other end of three-way solenoid valve (14) directly is connected with the air chamber (11) of sample gas, and three-way solenoid valve (14) is connected with single-chip microcomputer (19) by cable.
4. a kind of root system CO according to claim 1
2The original position apparatus for automatically measuring, it is characterized in that being equipped with in the air chamber (11) carbon dioxide analyser (10), carbon dioxide analyser (10) is connected with single-chip microcomputer (19) by cable, is connected with gas outlet (6) by threeway (8) by tracheae on the top of air chamber (11).
5. a kind of root system CO according to claim 1
2The original position apparatus for automatically measuring, it is characterized in that connecting LCD (18) and envirment factor sensor (20) in the upper end of single-chip microcomputer (19), the lower end of single-chip microcomputer (19) connects soil moisture temperature sensor (4), data memory (16) and communication interface (17).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205894101U CN202033357U (en) | 2010-11-03 | 2010-11-03 | Root system CO2 in-situ automatic measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205894101U CN202033357U (en) | 2010-11-03 | 2010-11-03 | Root system CO2 in-situ automatic measuring device |
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| CN202033357U true CN202033357U (en) | 2011-11-09 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165889A (en) * | 2014-08-22 | 2014-11-26 | 兰州大学 | CO2 dynamic closed recirculation absorption method and device |
| CN104316645A (en) * | 2014-10-09 | 2015-01-28 | 中国科学院地理科学与资源研究所 | Soil CO2, CH4 and N2O flux cooperative measuring device |
| CN105136712A (en) * | 2015-09-17 | 2015-12-09 | 中国地质科学院岩溶地质研究所 | Portable tester for partial pressure of carbon dioxide in water |
| CN105572169A (en) * | 2014-10-14 | 2016-05-11 | 中国科学院沈阳应用生态研究所 | Soil respiration gas multi-channel measuring device and method |
| CN105699136A (en) * | 2016-01-28 | 2016-06-22 | 东南大学 | Unsaturated zone gas multi-point instant and synchronous sampling device for polluted soil column test |
| CN105938091A (en) * | 2016-07-13 | 2016-09-14 | 北京易科泰生态技术有限公司 | Portable soil respiration measuring system |
| CN106198923A (en) * | 2016-06-23 | 2016-12-07 | 北京林业大学 | A kind of to original position soil feeding13cO2system and method for |
| CN106405055A (en) * | 2016-11-01 | 2017-02-15 | 青岛大学 | System and method for continuous online measurement of soil CO2 flux |
| CN106771078A (en) * | 2017-01-06 | 2017-05-31 | 中国科学院地球化学研究所 | A kind of interface carbon dioxide exchange flux continuous automatic measurement device |
| CN107389586A (en) * | 2017-09-04 | 2017-11-24 | 中国科学院地理科学与资源研究所 | δ13C METHOD FOR CONTINUOUS DETERMINATION systems |
| CN108562714A (en) * | 2018-02-02 | 2018-09-21 | 兰州大学 | A kind of interior soil incubation and soil respiration measurement system |
| CN111122438A (en) * | 2019-12-25 | 2020-05-08 | 中国科学院新疆生态与地理研究所 | Photosynthetic rate measuring device for low vegetation canopy |
| CN115508300A (en) * | 2022-09-16 | 2022-12-23 | 钢研纳克江苏检测技术研究院有限公司 | Valve island electromagnetic valve control system and method for carbon and sulfur analyzer |
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2010
- 2010-11-03 CN CN2010205894101U patent/CN202033357U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165889A (en) * | 2014-08-22 | 2014-11-26 | 兰州大学 | CO2 dynamic closed recirculation absorption method and device |
| CN104316645A (en) * | 2014-10-09 | 2015-01-28 | 中国科学院地理科学与资源研究所 | Soil CO2, CH4 and N2O flux cooperative measuring device |
| CN104316645B (en) * | 2014-10-09 | 2016-01-20 | 中国科学院地理科学与资源研究所 | Soil CO 2, CH 4and N 2o flux cooperative determining device |
| CN105572169A (en) * | 2014-10-14 | 2016-05-11 | 中国科学院沈阳应用生态研究所 | Soil respiration gas multi-channel measuring device and method |
| CN105136712A (en) * | 2015-09-17 | 2015-12-09 | 中国地质科学院岩溶地质研究所 | Portable tester for partial pressure of carbon dioxide in water |
| CN105699136B (en) * | 2016-01-28 | 2018-07-17 | 东南大学 | Pollute soil-column test unsaturation band gas multi-point transient synchronized sampling unit |
| CN105699136A (en) * | 2016-01-28 | 2016-06-22 | 东南大学 | Unsaturated zone gas multi-point instant and synchronous sampling device for polluted soil column test |
| CN106198923A (en) * | 2016-06-23 | 2016-12-07 | 北京林业大学 | A kind of to original position soil feeding13cO2system and method for |
| CN106198923B (en) * | 2016-06-23 | 2018-01-23 | 北京林业大学 | It is a kind of to original position soil feeding13CO2System and method for |
| CN105938091A (en) * | 2016-07-13 | 2016-09-14 | 北京易科泰生态技术有限公司 | Portable soil respiration measuring system |
| CN106405055A (en) * | 2016-11-01 | 2017-02-15 | 青岛大学 | System and method for continuous online measurement of soil CO2 flux |
| CN106771078A (en) * | 2017-01-06 | 2017-05-31 | 中国科学院地球化学研究所 | A kind of interface carbon dioxide exchange flux continuous automatic measurement device |
| CN106771078B (en) * | 2017-01-06 | 2023-05-30 | 中国科学院地球化学研究所 | Continuous automatic measuring device of interface carbon dioxide exchange flux |
| CN107389586A (en) * | 2017-09-04 | 2017-11-24 | 中国科学院地理科学与资源研究所 | δ13C METHOD FOR CONTINUOUS DETERMINATION systems |
| CN107389586B (en) * | 2017-09-04 | 2019-10-29 | 中国科学院地理科学与资源研究所 | δ13C METHOD FOR CONTINUOUS DETERMINATION system |
| CN108562714A (en) * | 2018-02-02 | 2018-09-21 | 兰州大学 | A kind of interior soil incubation and soil respiration measurement system |
| CN111122438A (en) * | 2019-12-25 | 2020-05-08 | 中国科学院新疆生态与地理研究所 | Photosynthetic rate measuring device for low vegetation canopy |
| CN115508300A (en) * | 2022-09-16 | 2022-12-23 | 钢研纳克江苏检测技术研究院有限公司 | Valve island electromagnetic valve control system and method for carbon and sulfur analyzer |
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