CN108828158B - Measurement device for carbon flux under artificial rainfall condition - Google Patents
Measurement device for carbon flux under artificial rainfall condition Download PDFInfo
- Publication number
- CN108828158B CN108828158B CN201810856377.5A CN201810856377A CN108828158B CN 108828158 B CN108828158 B CN 108828158B CN 201810856377 A CN201810856377 A CN 201810856377A CN 108828158 B CN108828158 B CN 108828158B
- Authority
- CN
- China
- Prior art keywords
- artificial rainfall
- transparent glass
- carbon flux
- flux under
- carbon dioxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 31
- 230000004907 flux Effects 0.000 title claims abstract description 30
- 238000005259 measurement Methods 0.000 title description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000011521 glass Substances 0.000 claims abstract description 38
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 24
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 23
- 238000005507 spraying Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- 229920005372 Plexiglas® Polymers 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000001556 precipitation Methods 0.000 description 9
- 239000002184 metal Substances 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000006012 detection of carbon dioxide Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/004—Specially adapted to detect a particular component for CO, CO2
Abstract
The invention relates to a carbon flux measuring device under artificial rainfall conditions, which comprises a transparent glass box (10), an artificial rainfall device (20) and a carbon dioxide tester (30), wherein the transparent glass box (10) is free of a bottom plate, a detection hole (12) for placing the carbon dioxide tester is formed on a top plate (11), the artificial rainfall device comprises a plurality of spraying units (21) arranged on the inner surface of the top plate (11), a pipeline (22) for connecting an external water source and the spraying units (21) and a valve (23) arranged on the pipeline (22), and the pipeline (22) enters the transparent glass box from the bottom of the transparent glass box, extends upwards to the top plate (11) along a side wall and is then connected with the spraying units (21); wherein each spray unit comprises a pipe body (211) and a plurality of spray heads (212) arranged on the outer surface of the pipe body (211), the pipe body (211) is communicated with the pipeline (22), and the spray heads (212) are communicated with the pipe body (211).
Description
Technical Field
The invention relates to carbon flux measuring equipment, in particular to carbon flux measuring equipment under artificial rainfall conditions.
Background
The box type gas measuring method is the longest method for measuring carbon flux at present and can be divided into a static box method and a dynamic box method, and the principle is that a box body with a certain size is placed on the upper part of soil or vegetation with a certain area to block the gas exchange in and out of the box body, so that the exchange quantity of carbon flux is measured. Among the influencing factors of the carbon flux, rainfall is often used as a research object to analyze the influence of the rainfall on the carbon flux, and researches show that the change of the carbon flux is severe in the rainfall process, but the conventional box type gas measuring method can not observe the change rule of the carbon flux in the rainfall process because the box body blocks the entering of the rainfall, so that the dynamic relationship of the rainfall-the carbon flux can not be accurately reflected.
Disclosure of Invention
In order to solve the problems in the background art, the invention aims to provide the carbon flux measuring equipment under the condition of artificial rainfall, and solve the problems that the existing carbon flux measuring equipment is poor in timeliness and inconvenient to move.
According to an aspect of the present invention, there is provided a measuring apparatus for carbon flux under artificial rainfall conditions, which is characterized by comprising a transparent glass case 10, an artificial rainfall device 20 and a carbon dioxide tester 30,
wherein the transparent glass case 10 has no bottom plate, the top plate 11 is formed with a detection hole 12 for placing the carbon dioxide tester, the artificial rainfall device comprises a plurality of spraying units 21 arranged on the inner surface of the top plate 11, a pipeline 22 for connecting an external water source and the plurality of spraying units 21, and a valve 23 arranged on the pipeline 22, the pipeline 22 enters the transparent glass case from the bottom of the transparent glass case, extends upwards to the top plate 11 along the side wall, and then is connected with the plurality of spraying units 21;
wherein each spray unit comprises a tube body 211 and a plurality of spray heads 212 arranged on the outer surface of the tube body 211, the tube body 211 is communicated with the pipeline 22, and the spray heads 212 are communicated with the tube body 211.
According to one embodiment of the invention, the artificial rainfall device further comprises a control device for controlling the water spray parameters.
According to one embodiment of the invention, the transparent glass case 10 is made of plexiglass sheets.
According to an embodiment of the present invention, the lower ends of the side wall glass plates of the transparent glass case 10 are terminated with a metal plate such as a stainless steel plate 13 having a certain width, for example, 10cm, so that the entire transparent glass case 10 can be easily inserted into soil, wherein the space between the stainless steel plate and the glass plate is sealed by glass cement to prevent air leakage.
According to one embodiment of the invention, the tube 211 is open at one end and closed at the other end, said opening being in communication with the conduit 22.
According to one embodiment of the invention, wherein the water spray parameters include flow rate and flow velocity.
According to one embodiment of the invention, the transparent glass case 10 is in the shape of a cuboid, cube or other suitable shape.
According to one embodiment of the present invention, wherein the carbon dioxide tester 30 is a portable carbon dioxide tester.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a carbon flux measuring apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic view showing a structure of a shower unit according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a portable carbon dioxide tester according to one embodiment of the present invention.
Reference numerals: 1-vegetation; 2-soil mass; 10-transparent box; 11-top plate; 12-detecting holes; 13-a metal plate; 21-a spraying unit; 22-piping; a 23-valve; 211-a tube body; 212-spray head; 30-a portable carbon dioxide tester; 31-portable carbon dioxide tester probe.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Fig. 1 is a schematic structural view of a carbon flux measuring apparatus according to an embodiment of the present invention. Fig. 2 is a schematic view showing a structure of a shower unit according to an embodiment of the present invention. Fig. 3 is a schematic structural view of a portable carbon dioxide tester according to one embodiment of the present invention.
Referring to fig. 1 to 3, a measuring apparatus of carbon flux under artificial rainfall conditions according to the present invention may include a transparent glass case 10, an artificial rainfall device, and a carbon dioxide tester 30. The measuring device may be arranged above the vegetation 1 and the soil 2.
As shown, the transparent glass case 10 is cylindrical, has no bottom plate, and is formed of five transparent glasses, so that the flux of carbon dioxide of vegetation can be detected by being placed on the vegetation 1. The top plate 11 is formed with a sensing hole 12 for placing the carbon dioxide tester, and the size and shape of the sensing hole may be determined according to the specific size of the carbon dioxide tester 12. The hole may be provided at an edge portion of the top plate, and the spraying operation of the spraying unit 21 and the detection of carbon dioxide may not be affected.
In addition, in order to increase strength, the lower ends (ground-contacting portions) of the side glass plates of the transparent glass case 10 may be connected to a metal plate having a certain width, for example, a 10cm stainless steel plate, so as to be inserted into the soil, wherein the stainless steel plate and the glass plate are sealed by a glass cement to prevent air leakage.
It should be appreciated that the transparent glass case 10 may have other shapes such as a rectangular parallelepiped, a cube, or a cylinder shape; the transparent glass case 10 may be made of plexiglass sheets or other suitable materials. The dimensions of the transparent glass case 10 may be appropriately selected, and for example, the side length may be 60cm, 70cm, 80cm, 100cm, 150cm, 200cm, or the like.
The rainmaking apparatus may include a plurality of spray units 21 provided on the inner surface of the top plate 11, a pipe 22 connecting an external water source and the spray units 21, and a valve 23 provided on the pipe 22, the pipe 22 entering from the bottom of the transparent glass case 10 and extending upward along a sidewall to the top plate 11, and then connecting the spray units 21. As shown, a plurality of shower units are disposed substantially in parallel on the inner surface of the top plate 11, on one side of the detection hole 12. This can prevent influence on the spraying operation of the spraying unit 21 and detection of carbon dioxide. The pipe 22 extends along the corners of the tank so that it does not take up much space and is easy to connect and secure. But may be arranged in other ways.
Referring to fig. 2, each spray unit may include a pipe body 211 and a plurality of spray heads 212 provided on an outer surface of the pipe body 211, the pipe body 211 being in communication with the pipe 22, the spray heads 212 being in communication with the pipe body 211. Wherein the pipe body 211 has one end opened and the other end closed, and the opening is communicated with the pipeline 22. Or a tube body open at both ends so as to communicate with the pipe 22 at both ends. Of course, other arrangements are possible. The plurality of spray heads 212 are substantially uniformly disposed on the tube body 211 to achieve substantially uniform water spray. A valve 23 is provided on the pipeline for opening or closing the pipeline.
According to the present invention, the artificial rainfall device 20 may further comprise a control device (not shown) for controlling the water spray parameters. For example, the control device may control the opening and closing of the valve 23, control the flow rate and velocity of water, the form of the spray water, etc. Those skilled in the art can readily implement the teachings of the present invention based on the prior art and, therefore, are not described in detail herein.
The carbon dioxide tester 30 may be a portable carbon dioxide tester, such as a hand-held tester. Carbon dioxide tester 30 may include a probe 31. In the case of inspection, the carbon dioxide tester 30 is placed in the inspection hole 12, and the probe is inserted into the transparent case 10 for inspection.
During measurement, the metal plate part of the transparent box 10 is inserted into the soil layer, and the probe 31 of the handheld carbon dioxide tester 30 is inserted into the transparent box through the detection hole 12 at the top of the transparent box and opened. Then, the control device is turned on, the artificial rainfall device is started, and after rainfall is ejected from the nozzle 41, carbon dioxide concentration measurement in the rainfall stage is started.
Examples
The following tests were carried out using the device of the invention:
the experimental object: beijing certain grassland
Experimental conditions: the side length of the device is 1.5 m; the simulated precipitation amounts are 0mm, 2mm, 5mm and 10mm respectively.
The experimental process comprises the following steps: in the test, the precipitation is artificially simulated by using the precipitation amount of 0mm as a control and 2mm, 5mm and 10mm, so that the water drops are uniformly scattered on the ground surface and no surface runoff is formed; apparent soil carbon fluxes of 10min, 30min, 1h, 2h after precipitation were measured under various precipitation conditions, respectively. The results are shown in the following table:
the results show that the precipitation increases the apparent carbon release amount of the biological crust, the cumulative carbon release amounts of the treatment under the conditions of 2mm, 5mm and 10mm of 3 precipitation are respectively gradually increased compared with the control group, and the apparent carbon flux of the soil shows a trend of gradually decreasing after increasing with the time after precipitation. This observation is substantially consistent with some of the findings of the prior art, for example: houssman D C, grote E, belnap J.Annual CO2flux from a biological soil crust system on the Colorado Plateau: effects of increased temperatureand summer precipitation/-Ecological Society of America Annual Meeting abstracts.2007.
In summary, the device for measuring carbon flux under artificial rainfall condition provided by the embodiment has simple structure, convenient measurement, and strong timeliness, and can measure data in the rainfall process. The transparent glass box is placed above the test soil body, and the bottom is fixed inside the soil body.
The above detailed description of embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (8)
1. The device for measuring the carbon flux under the artificial rainfall condition is characterized by comprising a transparent glass box (10), an artificial rainfall device and a carbon dioxide tester (30),
the device comprises a transparent glass box (10), a top plate (11) and a plurality of artificial rainfall devices, wherein the transparent glass box (10) is free of a bottom plate, a detection hole (12) for placing the carbon dioxide tester is formed in the top plate (11), the artificial rainfall devices comprise a plurality of spraying units (21) arranged on the inner surface of the top plate (11), pipelines (22) for connecting an external water source with the spraying units (21) and valves (23) arranged on the pipelines (22), and the pipelines (22) enter the transparent glass box from the bottom of the transparent glass box and extend upwards to the top plate (11) along the side wall and then are connected with the spraying units (21);
wherein each spray unit comprises a pipe body (211) and a plurality of spray heads (212) arranged on the outer surface of the pipe body (211), the pipe body (211) is communicated with a pipeline (22), and the spray heads (212) are communicated with the pipe body (211).
2. The apparatus for measuring carbon flux under artificial rainfall conditions of claim 1, wherein the artificial rainfall device further comprises a control device for controlling the water spray parameter.
3. The device for measuring carbon flux under artificial rainfall conditions according to claim 1, characterised in that the transparent glass tank (10) is made of plexiglass sheets.
4. The device for measuring carbon flux under artificial rainfall condition according to claim 1, wherein a stainless steel plate (13) with a certain width is connected to the lower end of a side wall glass plate of the transparent glass box (10), and the stainless steel plate and the glass plate are sealed by glass cement.
5. The device for measuring carbon flux under artificial rainfall conditions according to claim 1, wherein the tube body (211) is open at one end and closed at the other end, the opening being in communication with a pipe (22).
6. The apparatus for measuring carbon flux under artificial rainfall conditions of claim 2, wherein the water spraying parameters include flow rate and flow velocity.
7. The apparatus for measuring carbon flux under artificial rainfall conditions according to claim 1, characterized in that the transparent glass tank (10) has a rectangular parallelepiped shape.
8. The apparatus for measuring carbon flux under artificial rainfall conditions according to claim 1, wherein the carbon dioxide tester (30) is a portable carbon dioxide tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810856377.5A CN108828158B (en) | 2018-07-31 | 2018-07-31 | Measurement device for carbon flux under artificial rainfall condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810856377.5A CN108828158B (en) | 2018-07-31 | 2018-07-31 | Measurement device for carbon flux under artificial rainfall condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108828158A CN108828158A (en) | 2018-11-16 |
| CN108828158B true CN108828158B (en) | 2024-01-30 |
Family
ID=64152319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810856377.5A Active CN108828158B (en) | 2018-07-31 | 2018-07-31 | Measurement device for carbon flux under artificial rainfall condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108828158B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2814957Y (en) * | 2005-02-06 | 2006-09-13 | 马晓光 | Ecological simulation device |
| JP2010125386A (en) * | 2008-11-27 | 2010-06-10 | Chugoku Electric Power Co Inc:The | Wastewater treatment system |
| JP2012100640A (en) * | 2010-11-10 | 2012-05-31 | Fujiwara Sangyo Kk | Method for generating artificial rainfall or the like |
| KR20120073406A (en) * | 2010-12-27 | 2012-07-05 | 상지대학교산학협력단 | Landslide calibration chamber test set that using artificial rainfall simulator |
| CN202949783U (en) * | 2012-12-10 | 2013-05-29 | 中国科学院武汉岩土力学研究所 | Artificial climate system for continuous soil-vegetation-atmosphere system model test |
| JP2014018196A (en) * | 2012-07-13 | 2014-02-03 | Nippon Ekitan Corp | Carbon dioxide gas application control device and carbon dioxide gas application control method of sunlight type greenhouse |
| CN204417513U (en) * | 2014-12-16 | 2015-06-24 | 江西省银丰鼎诚生物工程有限公司 | A kind of can the CO2gas incubator of on-line checkingi |
| CN104897873A (en) * | 2014-12-26 | 2015-09-09 | 浙江农林大学 | Open soil carbon flux monitoring instrument and monitoring method |
| JP2015200525A (en) * | 2014-04-04 | 2015-11-12 | 国立大学法人九州大学 | Gas monitor device |
| CN105701360A (en) * | 2016-03-02 | 2016-06-22 | 中国科学院寒区旱区环境与工程研究所 | Arid region carbon flux estimation method based on box type method and taking precipitation influence into consideration |
| CN105759154A (en) * | 2016-04-22 | 2016-07-13 | 国网湖南省电力公司 | Spray control method used for insulator string rainfall test |
| CN106128275A (en) * | 2016-08-24 | 2016-11-16 | 鞍钢集团矿业有限公司 | A kind of simulation transition from open-pit well is adopted rock mass and is caving and cheats end waterproof test device and method |
| CN205827758U (en) * | 2016-04-21 | 2016-12-21 | 付一鸣 | Acid rain forms experimental provision |
| CN107882150A (en) * | 2017-12-20 | 2018-04-06 | 北京市水科学技术研究院 | Rainwater permeation collection based on radial utilizes system |
| CN208999377U (en) * | 2018-07-31 | 2019-06-18 | 北京市水科学技术研究院 | The measuring device of Carbon flux under a kind of artificial rainfall condition |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10563392B2 (en) * | 2015-08-11 | 2020-02-18 | Mmt, Inc. | Stormwater biofiltration system and method |
-
2018
- 2018-07-31 CN CN201810856377.5A patent/CN108828158B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2814957Y (en) * | 2005-02-06 | 2006-09-13 | 马晓光 | Ecological simulation device |
| JP2010125386A (en) * | 2008-11-27 | 2010-06-10 | Chugoku Electric Power Co Inc:The | Wastewater treatment system |
| JP2012100640A (en) * | 2010-11-10 | 2012-05-31 | Fujiwara Sangyo Kk | Method for generating artificial rainfall or the like |
| KR20120073406A (en) * | 2010-12-27 | 2012-07-05 | 상지대학교산학협력단 | Landslide calibration chamber test set that using artificial rainfall simulator |
| JP2014018196A (en) * | 2012-07-13 | 2014-02-03 | Nippon Ekitan Corp | Carbon dioxide gas application control device and carbon dioxide gas application control method of sunlight type greenhouse |
| CN202949783U (en) * | 2012-12-10 | 2013-05-29 | 中国科学院武汉岩土力学研究所 | Artificial climate system for continuous soil-vegetation-atmosphere system model test |
| JP2015200525A (en) * | 2014-04-04 | 2015-11-12 | 国立大学法人九州大学 | Gas monitor device |
| CN204417513U (en) * | 2014-12-16 | 2015-06-24 | 江西省银丰鼎诚生物工程有限公司 | A kind of can the CO2gas incubator of on-line checkingi |
| CN104897873A (en) * | 2014-12-26 | 2015-09-09 | 浙江农林大学 | Open soil carbon flux monitoring instrument and monitoring method |
| CN105701360A (en) * | 2016-03-02 | 2016-06-22 | 中国科学院寒区旱区环境与工程研究所 | Arid region carbon flux estimation method based on box type method and taking precipitation influence into consideration |
| CN205827758U (en) * | 2016-04-21 | 2016-12-21 | 付一鸣 | Acid rain forms experimental provision |
| CN105759154A (en) * | 2016-04-22 | 2016-07-13 | 国网湖南省电力公司 | Spray control method used for insulator string rainfall test |
| CN106128275A (en) * | 2016-08-24 | 2016-11-16 | 鞍钢集团矿业有限公司 | A kind of simulation transition from open-pit well is adopted rock mass and is caving and cheats end waterproof test device and method |
| CN107882150A (en) * | 2017-12-20 | 2018-04-06 | 北京市水科学技术研究院 | Rainwater permeation collection based on radial utilizes system |
| CN208999377U (en) * | 2018-07-31 | 2019-06-18 | 北京市水科学技术研究院 | The measuring device of Carbon flux under a kind of artificial rainfall condition |
Non-Patent Citations (11)
| Title |
|---|
| Soil N2O emissions from long-term agroecosystems: Interactive effects of rainfall seasonality and crop rotation in the Brazilian Cerrado;Isis Lima dos Santos等;《Agriculture, Ecosystems & Environment》;第233卷(第10期);111-120 * |
| 不同灌水模式和施氮处理下稻田N2O排放通量及其与硝化-反硝化细菌数量的关系;裴自伟, 陈意超, 李伏生等;《农业环境科学学报》;第36卷(第12期);2561-2568 * |
| 人工模拟降水条件下旱作农田土壤"Birch效应"及其响应机制;陈荣荣;刘全全;王俊;刘文兆;Upendra M.Sainju;;《生态学报》;第36卷(第2期);306-317 * |
| 太湖丘陵地区农田氮素迁移的时空分布特征;王鹏;高超;姚琪;韩龙喜;申霞;;《环境科学》;第6卷(第8期);1671-1675 * |
| 施氮和降水格局改变对土壤CH4和CO2通量的影响;李伟等;《生态学杂志》;第32卷(第08期);1947-1958 * |
| 生物炭与氮肥对旱作春玉米农田CO2和CH4排放特征的影响;李秀云, 张洪培, 沈玉芳等;《西北植物学报》;第36卷(第6期);1216-1224 * |
| 硝、铵态氮肥对旱地土壤氧化亚氮排放的影响;梁东丽;方日尧;李生秀;Ove Emteryd;张兴昌;;《干旱地区农业研究》;第7卷(第1期);67-72 * |
| 秦岭油松林不同坡位土壤CO2、CH4、N2O通量研究;扆凡, 庞军柱, 刘岳坤等;《环境科学学报》;第38卷(第6期);2506-2517 * |
| 稻田冬闲期CO2气体排放的观测研究;尹春梅, 谢小立, 王凯荣;《生态环境》;第7卷(第1期);71-76 * |
| 鄂南棕红壤区不同植茶年限茶园CH4通量特征;孙贇, 林杉, Muhammad Shaaban等;《环境科学学报》;第37卷(第10期);3995-4003 * |
| 黄土高原冬小麦田土壤CH_4通量对人工降水的短期响应;刘全全;王俊;陈荣荣;刘文兆;Upendra M.Sainju;;《应用生态学报》;第26卷(第1期);140-146 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108828158A (en) | 2018-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE602006021346D1 (en) | METHOD AND DEVICE FOR THE AUTOMATED CHARACTERIZATION OF OBJECTS WITH UNKNOWN RF PROPERTIES | |
| CN205157362U (en) | Compressed air foam fire extinguishing performance evaluatees testing system | |
| CN110716030A (en) | Karst collapse multi-parameter monitoring and early warning test system | |
| CN203164111U (en) | Holder and holder-based acidizing etching instrument | |
| CN109283123A (en) | Soil accelerated corrosion tests device and experimental method | |
| CN108828158B (en) | Measurement device for carbon flux under artificial rainfall condition | |
| CN208999377U (en) | The measuring device of Carbon flux under a kind of artificial rainfall condition | |
| US20190301982A1 (en) | Shower/safety shower/fire sprinkler testing device | |
| CN211374743U (en) | Karst collapse multi-parameter monitoring and early warning test system | |
| CN204630765U (en) | A kind of original soil sample collecting device for measuring soil magnetic susceptibility | |
| CN204422445U (en) | A kind of Oilfield Pipelines bearing analysis device | |
| CN208313963U (en) | A kind of sewage monitoring device | |
| CN104406990A (en) | Automatic sealed oil-discharge device and oil-discharge method | |
| CN208907125U (en) | A kind of portable sanitary inspection device | |
| CN205538653U (en) | High -efficient simple and easy sample test platform | |
| CN208224270U (en) | One kind being convenient for clean alcohol content tester calibrating installation | |
| CN208239268U (en) | A kind of laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating | |
| CN207488164U (en) | A kind of sulfuric acid transparency measuring device | |
| CN207066372U (en) | A kind of supersonic detection device for being used for thin-wall steel tube layered weighting and thickness measuring | |
| CN207123517U (en) | A kind of acid-base titration experiment experimental provision | |
| CN207488150U (en) | Salt spray corrosion test instrument | |
| CN203965293U (en) | Rock burette test testing table | |
| CN102494936A (en) | Measuring cell device for trace dissolved oxygen water and device for preparing trace dissolved oxygen water | |
| CN206848180U (en) | A kind of used in mariculture water acid-base value detector | |
| CN204228503U (en) | A kind of control type dry type Nitrogen evaporator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |