CN204008587U - The rising measuring instrument of a kind of canopy photosynthesis - Google Patents
The rising measuring instrument of a kind of canopy photosynthesis Download PDFInfo
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- CN204008587U CN204008587U CN201320891829.6U CN201320891829U CN204008587U CN 204008587 U CN204008587 U CN 204008587U CN 201320891829 U CN201320891829 U CN 201320891829U CN 204008587 U CN204008587 U CN 204008587U
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Abstract
The utility model relates to the rising measuring instrument of a kind of canopy photosynthesis.The rising measuring instrument of this canopy photosynthesis is taking casing, top cover, data acquisition and analytic system as agent structure, and the design people is optimized improvement to these structures, thereby it can realize robotization, high flux, multiparameter, measurement in the time of infertility.
Description
Technical field
The utility model belongs to botany field; More specifically, the utility model relates to the rising measuring instrument of a kind of canopy photosynthesis and application thereof.
Background technology
Along with the continuous increase of population in the world, the exhaustion day by day of fossil energy, demand to grain and biomass energy is more and more higher, cultivated area is because the development of urbanization reduces gradually, therefore, the grain of increase land area of one unit and biomass yield become the inevitable approach that solves grain and energy problem.For a long time, people improve crop yield unremitting effort, and have obtained positive effect.But, nearly ten years, being difficult to make a breakthrough around the scientific research that improves crop yield, Per Unit Area Grain Yield fluctuates.How to improve plant products and become the significant challenge that botanists face.
Current research shows, the method that can significantly improve output is to improve the light energy conversion efficiency of plant, and the maximum light energy conversion efficiency of C3 plant is approximately that 4.6%, C4 plant can reach 6% in theory.And the light energy conversion efficiency of Field Plants on average only has 0.5% the time of infertility, far below theoretic mxm..Therefore, the light energy conversion efficiency of raising crop is a practicable approach that improves output.At present, multiple research projects relevant to photosynthesis and grain yield are started in the world, these projects relate to multiple subjects such as plant physiology, ecology, cell and molecular biology, science of heredity etc. mostly, but these researchs rest on individual blade level mostly to photosynthetic measurement level, measurement means is all measurements based on individual blade also, such as gas exchange, fluorescence, stomatal conductance etc.But most research shows recently, plant products and the canopy photosynthesis speed of action are closely related, with the photosynthesis rate correlativity of individual blade not obvious (Zelitch, 1982).But up to the present, the measurement of canopy photosynthesis effect lacks effectively unified device systems, this has greatly hindered Canopy photosynthetic efficiency and crop yield is related to progress of research.
Traditional measurement canopy photosynthesis effect and the method for transpiration rate are to utilize easy canopy assimilation box, need manual operation, and precision, repeatability and flux all require further improvement.Along with the development of genomics and high throughput sequencing technologies, genotypic mensuration has realized high flux, and the robotization of phenotype, high flux and measurement in the time of infertility become research bottleneck, urgently develop at present the robotization of a set of land for growing field crops, the time of infertility canopy photosynthesis and transpiration rate measuring system to meet the demand of increasing extensive canopy photosynthesis effect research.
In field test community, the method for measuring among a small circle canopy photosynthesis and transpiration rate is mainly assimilation box method, can be divided into two kinds of open type and closed types.The feature of open type is that the method can be controlled internal environment for measuring assimilation box air inlet and gas concentration lwevel and the flow velocity of giving vent to anger, calculating canopy photosynthesis speed, and the parameter under Measurement sensibility state, but this technical pattern complexity need a large amount of gas flow.The feature of closed type is by opening and closing assimilation box, measure the instantaneous rate of change of inner gas concentration lwevel, obtain canopy photosynthesis speed, although be not the parameter under steady state (SS), but just can obtain rate of change in carbon dioxide decline scope very little (<20ppm), its inner environmental facies are all smaller to changing, and this technical pattern is simple, convenient operation.
External many scholars have developed some for measuring the instrument of canopy photosynthesis speed.Reicosky and Peters (1977) have proposed to utilize assimilation box to carry out Quick Measurement to community, field canopy transpiration rate.Reicosky etc. (1990) have summed up the method for utilizing the assimilation box measurements and calculations canopy carbon dioxide exchange rate that can use in field.Bugbee (1992) has designed closed type canopy assimilation box.The automatic canopy assimilation box of Steduto etc. (2002) exploitation can be monitored canopy photosynthesis and the transpiration of whole day.Muller etc. (2009) have researched and developed for measuring the photosynthetic open type assimilation box of wheat canopy.P é rez-Priego (2010) has designed and produced the closed type canopy assimilation box for measuring whole strain tree.
The domestic relation that also has many focus of attention plant population's canopy photosynthesis effects and output, and develop separately assimilation box and carry out canopy photosynthesis speed measurement.Pressing down strong wait (1997) year the week in Xinjiang utilizes canopy assimilation box to study Cotton Population photosynthesis characteristics; The horse affluence (1998) of university of Shihezi of Xinjiang has been introduced and has been utilized closed type assimilation box taking cotton as the main method of measuring colony's canopy photosynthesis speed of action; The Wang Qingcheng of corn research institute of Shandong academy of agricultural sciences etc. (2001) utilize closed type assimilation box by measuring maize canopy photosynthesis research different cultivars, the impact of different plant types on canopy photosynthesis; The China Li Ming of agricultural university and Shi Shengjin (2006) researched and developed open type crop groups photosynthetic with evapotranspire METHOD FOR CONTINUOUS DETERMINATION system; The Gao Song of Taizhou University and Cold and drought Region research institute of the Chinese Academy of Sciences etc. (2011) adopt the LI-8100 soil carbon flux measuring instrument of Licor company in conjunction with Beijing Li Gaotai company assimilation box customized, the population photosynthesis of ermophyte sacsaoul to be studied.
The canopy assimilation box of the different application that Chinese scholars is designed and developed, principle function and performance basically identical and separately there are differences, and are difficult to canopy photosynthesis speed and transpiration rate to carry out standardized measurement.Although these instruments can be measured canopy photosynthesis speed, Shortcomings part all separately, some casings are less can not meet the field experiment such as paddy rice, wheat demand; Substantially all can not dismounting casing, transport and storage are inconvenient; Seldom there is automatic measurement; The automatic measurement of Steduto P. etc. (2002) design has under wind environment stable not in field; Gas measurement component is substantially all in casing outside, and the response time of measuring again after gas is derived is longer; Most systems integrated level is not high, and the parameter measuring is comprehensive not, does not integrate light quantum flux, air pressure, the isoparametric measurement of leaf temperature, in real time display measurement data; There is no supporting data storage, analytic function, in conjunction with photosynthesis computation model, measurement parameter is not effectively analyzed.
Therefore, this area is in the urgent need to developing the rising measuring instrument of improved canopy photosynthesis, to solving some difficult problems that exist in prior art.
Utility model content
The purpose of this utility model is to provide the rising measuring instrument of a kind of canopy photosynthesis and application thereof.
In first aspect of the present utility model, provide a kind of canopy photosynthesis rising measuring instrument, the rising measuring instrument of described canopy photosynthesis comprises:
Casing 1, establishes gas evenly mixing device 11 in casing;
Top cover 2, arranges and can open and airtight rolling curtain type door 21 on top cover;
Data acquisition and analytic system 3, it is positioned at the side of top cover 2 and below.
In a preference, described casing 1 is interior arranges 2-8 gas evenly mixing device 11.
In another preference, described casing 1 is square, and using transparent material as wall, using aluminium alloy or polycarbonate (PC) material as framework, wall is embedded in framework.
In another preference, the seam crossing of frame material is with the chimeric connection of emboss pit, and the seam crossing of wall and framework junction, frame material arranges sealing strip.
In another preference, described rolling curtain type door 21 adopts light transmission film 22 as door body, with the opening and closing of reel device 23 control gate bodies.
In another preference, described data acquisition and analytic system 3 comprise:
Signals collecting, analysis, control module 31;
For detection of and the sensor of transmission temperature, air pressure, optical signalling;
Gas sample tube 35, for gathering gas from box house, is transferred to signals collecting, analysis, control module 31.
In another preference, described for detection of and the sensor of transmission temperature, air pressure, optical signalling comprise:
Temperature sensor 32, for being transferred to the temperature signal of box house signals collecting, analysis, control module 31;
Baroceptor 33, for being transferred to the air pressure signal of box house signals collecting, analysis, control module 31;
Light quantum sensor 34, for being transferred to the optical radiation signal of box house signals collecting, analysis, control module 31.
In another preference, described signals collecting, analysis, control module 31 comprise: the software and hardware system of real time record and analysis temperature, air pressure, optical radiation and gas componant and/or display screen 36.
In another preference, in the time of top cover and casing sealing, described signals collecting, analysis, control module 31 are positioned at outside casing, and described temperature sensor 32, baroceptor 33, light quantum sensor 34, gas sample tube 35 are positioned at casing.
In another preference, described gas evenly mixing device 11 is rectangular structure, and upper end face and lower end face arrange respectively 111, one sides of air intake opening multiple (as 3-100) gas outlet 112 is set, and all air intake openings and gas outlet are all communicated with.
Other side of the present utility model, due to disclosure herein, is apparent to those skilled in the art.
Brief description of the drawings
The fractionation schematic diagram of Fig. 1, the rising measuring instrument of canopy photosynthesis.
The junction emboss pit design diagram of Fig. 2 A-D, assembled box body.C and D represent respectively projection and groove, and C and D can the chimeric structures that forms A.
Fig. 3, dedicated fan, mix for assimilation box internal gas.
The device pictorial diagram (B) of Fig. 4, data acquisition, analysis, control system, and system control flow schematic diagram (A).
Impermeability (A-B), temperature (C) and air pressure (D) test of Fig. 5, measuring instrument.In measuring process (about 30s), inside and outside CO
2concentration difference (Δ CO
2) about 7ppm, leak and be less than 0.15ppm, cause that error is less than 2.1%.The average 4.5Pa of air pressure change in canopy assimilation box, average 0.025 DEG C of temperature variation.
Fig. 6, utilize canopy photosynthesis entirety measuring instrument to measure in the process of tobacco canopy photosynthesis and transpiration rate in greenhouse, the interior carbon dioxide (CO of canopy
2) concentration (A) and water vapor (H
2o) concentration (B).The moment of assimilation box is closed in black arrow instruction, and red arrow is indicated the moment of opening assimilation box.In the time closing assimilation box, CO
2concentration declines, H
2o concentration rises; While opening assimilation box, CO
2and H
2o concentration returns to rapidly environmental level.
The canopy structure model in Fig. 7, tobacco breeding time early stage (A, B) and mid-term (C), light greenly represents light intensity from 1500 to 0 μ mol.m to dark green color
-2.s
-1.
The rice canopy structural model of Fig. 8, simulation and light distribution be expression light intensity from 1500 to 0 μ mol.m from light green to dark green
-2.s
-1.
Light distribution in the tobacco canopy of Fig. 9, simulation, A and B are the tobacco breeding time of the analogues value 0.1 and 0.5 time at atmospheric transmissivity in early days.Light intensity analogue value when C and D are tobacco mid-terms breeding time when 8:00 and 11:00.
In the rice canopy of Figure 10, simulation, on the surface level of light distribution and actual measurement, average intensity distributes.
The photosynthesis response curve of Figure 11, tobacco leaf level.
The photosynthesis CO of Figure 12, rice leaf level
2response curve.
The comparison of Figure 13, the rising measuring instrument measured value of canopy photosynthesis and calculated value.
Figure 14, field instrument test pictorial diagram.
Wherein, each Reference numeral is corresponding as follows:
1: casing; 11: gas evenly mixing device; 111: air intake opening; 112: gas outlet.
2: top cover; 21: rolling curtain type door; 22: light transmission film; 23: reel device.
3: data acquisition and analytic system.31: signals collecting, analysis, control module; 32: temperature sensor; 33: baroceptor; 34: light quantum sensor; 35: gas sample tube; 36: display screen.
Embodiment
The design people is based on rising measuring instrument (assimilation box) principle of closed type canopy photosynthesis, a kind of rising measuring system of canopy photosynthesis that realizes robotization, high flux, multiparameter, measurement in the time of infertility is provided, for the effect of broad scale research canopy photosynthesis, improving crop grain yield provides technical support.
Measuring principle
The measuring principle of the rising measuring instrument of canopy photosynthesis is: by measuring instantaneous CO
2change with water vapor concentration, calculate canopy photosynthesis and transpiration rate.When closing measurement case, measure the CO in case
2concentration declines, and water vapor concentration rises.According to CO
2concentration and water vapor concentration rate of change calculate photosynthetic rate and transpiration rate.
Casing and gas evenly mixing device
The casing of the rising measuring instrument of described canopy photosynthesis can be square, and using transparent material as wall, using aluminium alloy or polycarbonate (PC) material as framework, wall is embedded in framework.Preferably, the seam crossing of frame material is with the chimeric connection of emboss pit, and the seam crossing of wall and framework junction, frame material arranges sealing strip.
The dismountable design of measuring case wall is preferred, and every a slice wall is embedded into separately and in framework, forms a unit, chimeric connection between Liang Ge unit.This being designed with is beneficial to carrying and deposits.
Assimilation box volume is larger, and leaf photosynthesis absorbing carbon dioxide can cause inner carbon dioxide to occur concentration gradient, so the problem that mixes of gas need to be well solved.Multiple gas evenly mixing devices are set in casing; 2-6 gas evenly mixing device is preferably set.
As optimal way of the present utility model, adopt a kind of dedicated fan as gas evenly mixing device, carry out gas and mix.Fan profile is rectangular parallelepiped, and air intake opening is at upper and lower surface, and gas outlet is in side, and such design not only can large-scale, high efficiency mixed gas, and the space that fan occupies is less, also can not damage blade.
In canopy assimilation box, also design gas sample tube and collected gas, after the each sampling pipe gas of mixed in equal amounts, measured mean concentration.Utilize above-mentioned dedicated fan evenly mixing device in conjunction with multi-point sampling device, can at utmost record gas mean concentration in assimilation box.
Top cover
The rising measuring instrument of described canopy photosynthesis comprises top cover, on top cover, arranges and can open and airtight rolling curtain type door.
One-shot measurement is closed and opened to closed type assimilation box by case lid, and while closing according to assimilation box, in canopy, the rate of change of carbon dioxide and water vapor concentration calculates canopy photosynthesis speed and transpiration rate.For realizing automatic measurement, need to develop the auto-switch function of case lid.
More existing assimilation boxs generally adopt hinge-type case lid design (being similar to common door), not only need very strong driving force system to drive top cover, and it is larger to receive the impact of wind weather.
The utility model improves, and adopts " roller shutter type " but not the on-off mode of " hinge-type " is having the weather of wind, opens that to close top cover more stable, is not easy to be turned over by wind, has overcome and has had the impact of wind weather on DATA REASONING.And, low to power system power requirement.
Data acquisition and analytic system
The rising measuring instrument of described canopy photosynthesis comprises data acquisition and analytic system.
Sensor need to be fixed to the scuncheon of case lid, in the utility model, utilizes link light quantum, temperature, air pressure, infrared temperature-test sensor to be connected on the frame of case lid (Fig. 1).Preferably, light quantum sensor is furnished with horizontal adjustment device; Temperature and baroceptor are integrated together, and are furnished with radiation shield; Infrared temperature-test sensor is furnished with capable of regulating direction and the device of height with the leaf temperature of the inner differing heights of measurement canopy.Sensor or measuring instrument comprise: 1) infrared gas analyzer, accurately measurement environment carbon dioxide and water vapor concentration need to utilize infrared gas analyzer, preferably can adopt the LI-840 infrared gas analyzer that Licor company produces to measure carbon dioxide and water vapor concentration; 2) light quantum sensor, the LI-191 that preferably can adopt Licor company to become to produce, LI-190 light quantum sensor; 3) temperature sensor, preferably can adopt Pt-100 temperature sensor; 4) baroceptor, preferably can adopt the GT000 baroceptor of the auspicious production of Beijing foreign exchange; 5) infrared temperature-test sensor, preferably can adopt IRTE3600ZH (TTL) infrared temperature probe.Other is measured required instrument and also can install and apply according to similar mode.
As optimal way of the present utility model, whole survey sensors and controller are integrated on top cover, the benefit of design is mobile top cover and sensor and controller fast, easily like this, in the actual use in field, can make multiple casings, then utilize a top cover within a few minutes, to measure multiple experiment materials (multiple sample), and if move in field whole measurement case be very consuming time and also damage plant leaf blade.
The rising measuring instrument of canopy photosynthesis of the present utility model, can be taking each Plants (as paddy rice, tobacco etc.) as tested object, carry out the system and device that robotization, high flux and canopy photosynthesis effect in the time of infertility and transpiration rate are measured, can realize the full-automation of the canopy photosynthesis speed of action and transpiration speed and measure.This system has overcome many deficiencies that current canopy photosynthesis effect measuring system exists, for the relation research of canopy photosynthesis effect and crop yield has improved degree of accuracy, for the photosynthesis optimization research of crop canopies level provides good experiment porch.
The utility model has a wide range of applications to fields such as field and plant culture, crop breeding such as photosynthesis, transpiration, water use efficiency, plant growing study; especially for improving crop yield, solve the support that provides the necessary technical of global crisis in food.
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment are only not used in restriction scope of the present utility model for the utility model is described.The experimental technique of unreceipted actual conditions in the following example, conventionally according to normal condition, or the condition of advising according to manufacturer.
The design of the rising measuring instrument of canopy photosynthesis and development mainly comprise the design of (1) assembly type canopy measurement case; (2) design of signals collecting and data analysis control, i.e. integrated CO2, water vapor, temperature, light quantum, infrared temperature sensor and one, realizes multiparameter continuous acquisition, analysis, demonstration and storage; (3) the gentle temperature detector of impermeability, air pressure of measuring case is surveyed; (4) measuring principle; (4) test data analysis and checking.
Embodiment 1, the rising measuring instrument of canopy photosynthesis (assimilation box)
Deposit and transport difficulty for the casing in field experiment process, the design people has designed the rising measuring instrument of assembly type canopy photosynthesis, and it connects with framework, easy to remove to carry.
As Fig. 1, the rising measuring instrument of described canopy photosynthesis comprises: casing 1 is the square bodily form, the about 1m of volume
3(for the Individual Size of the plant such as paddy rice, wheat, assimilation box volume be about 1 cubic metre comparatively suitable), using transparent material as wall, using aluminum alloy materials as framework, wall is embedded in framework.The seam crossing of frame material, with the chimeric connection of emboss pit, meets stabilized structure and bubble-tight requirement in conjunction with snap close and sealing strip, as Fig. 2 A-D.Gas evenly mixing device (fan) 11 is set in casing, is positioned on four side angles of square casing.Described gas evenly mixing device 11 is rectangular structure, and upper end face and lower end face arrange respectively 111, one sides of an air intake opening 9 gas outlets (112) are set, and all air intake openings and gas outlet are all communicated with, as Fig. 3.
The upper end face of casing 1 arranges top cover 2, on top cover, arranges and can open and airtight rolling curtain type door 21.Described rolling curtain type door 21 adopts high light transmission film 22 as door body, with the opening and closing of reel device 23 control gate bodies.In top cover 2, the material in other region beyond rolling curtain type door is with the material of casing wall.
The side of top cover 2 and below; Data acquisition and analytic system 3 are set, comprise: signals collecting, analysis, control module 31; Temperature sensor 32, for being transferred to the temperature signal of box house signals collecting, analysis, control module 31; Baroceptor 33, for being transferred to the air pressure signal of box house signals collecting, analysis, control module 31; Light quantum sensor 34, for being transferred to the optical radiation signal of box house signals collecting, analysis, control module 31; With gas sample tube 35, for gathering gas from box house, be transferred to signals collecting, analysis, control module 31.Described signals collecting, analysis, control module 31 comprise: the hardware of real time record and analysis temperature, air pressure, optical radiation and gas componant or software systems, it also at least contains a display screen 36, so that observation.
Temperature sensor 32 adopts Pt-100 temperature sensor or LI-6400.
Baroceptor 33 adopts GT000 baroceptor or the LI-6400 of the auspicious production of Beijing foreign exchange.
LI-191 or LI-190 light quantum sensor that light quantum sensor 34 adopts Licor company to become to produce.
Also installation infrared temperature probe, adopts IRTE3600ZH (TTL) infrared temperature probe.
In described signals collecting, analysis, control module 31, comprise infrared gas analyzer, accurately measurement environment carbon dioxide and water vapor concentration.
Described casing 1, top cover 2 and data acquisition and the part assembly of analytic system 3 can be assembled formation sealed chamber.In the time of top cover and casing sealing, described signals collecting, analysis, control module 31 are positioned at outside casing, and described temperature sensor 32, baroceptor 33, light quantum sensor 34, gas sample tube 35 are positioned at casing.
In the present embodiment, the rising measuring instrument of canopy photosynthesis is with framed structure assembly and connection, and four walls, the framework of top cover, casing can be dismantled easily and install, and are easy to carry.
Embodiment 2, data acquisition and analytic system
Data acquisition and analytic system adopt data acquisition, analysis, the control system based on PLC (Programmable Logic Controller), as Fig. 4, the analog voltage of receiving sensor or current signal, amplify, be converted to measurement numerical value through signal, and through calculating real-time canopy photosynthesis speed and transpiration rate, be finally shown on human-computer interaction interface.
Experimenter can return to zero by the touch screen of human-computer interaction interface, parameters, record data, control assimilation box switch and start the operations such as auto-programming.This system can record the CO in current canopy assimilation box by automatic spacing 0.5s
2the parameters such as concentration, water vapor concentration, temperature, air pressure, leaf temperature, light quantum flux, time on date, and calculate in real time Photosynthetic rate and canopy conductance.Above data dynamically show with numeral and curve form respectively, and store on movable storage device (USB flash disk or SD card) into or be real-time transmitted on computer.The on off state of all right automatic control box lid of this controller, to realize automatic measurement.In addition, by the automatic control program of PLC, decide the opening and closing time of assimilation box top cover according to the data of measuring in real time when front sensor.
Embodiment 3, device systems inspection
In order to ensure to develop the quality of instrument, need to test to the impermeability of the instrument of embodiment 1, air pressure inside, Inside Air Temperature.
(1) air tight test
Assemble as after the assimilation box of embodiment 1, inside is filled with CO
2, make inner concentration higher than outside, close assimilation box and monitor continuously inner CO
2concentration, calculates impermeability testing result according to concentration change.Fig. 5 A is according to CO in time casing
2concentration change.Assimilation box gas leakage degree is directly proportional to the inside and outside concentration difference of assimilation box, as Fig. 5 B.
(2) temperature inspection
Utilize LI-6400 as reference instrument, Real-Time Monitoring is measured the temperature Change in case, and as Fig. 5 C, result displays temperature changes average 0.025 DEG C.Can meet measuring accuracy requirement.
(3) pneumatic test
Utilize LI-6400 as reference instrument, Real-Time Monitoring is measured the air pressure change in case, and as Fig. 5 D, result shows the average 4.5Pa of air pressure change.Can meet measuring accuracy requirement.
(4) photosynthetic rate and transpiration rate
By measuring instantaneous CO
2change with water vapor concentration, calculate canopy photosynthesis and transpiration rate.As shown in Figure 6, measure case (shown in black arrow) when closing, measure the CO in case
2concentration declines, and water vapor concentration rises.According to CO
2concentration and water vapor concentration rate of change calculate photosynthetic rate and transpiration rate.
Embodiment 4, test data analysis and checking
The design people utilizes tobacco and paddy rice, respectively the instrument of embodiment 1 is calculated and is verified by theory.First build three-dimensional structural model (Fig. 7-8), then simulate the distribution of light (Fig. 9-10) in canopy, the photosynthesis characteristics curve (Figure 11-12) of simultaneously measuring different leaves, finally calculates the photosynthetic rate on each vanelets.And canopy photosynthesis speed equals the sum total of the photosynthetic rate of each vanelets, can theory calculate canopy photosynthesis speed and transpiration rate thus.Measured value compare with calculated value (Figure 13) show that instrument of the present utility model and calculated value index of conformity are greater than 0.95, illustrate that the measurement accuracy of this instrument is good.Figure 14 is the practical application photo of instrument of the present utility model at rice field.
All documents of mentioning at the utility model are all quoted as a reference in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read above-mentioned instruction content of the present utility model, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (9)
1. the rising measuring instrument of canopy photosynthesis, is characterized in that, the rising measuring instrument of described canopy photosynthesis comprises:
Casing (1), establishes gas evenly mixing device (11) in casing;
Top cover (2), arranges and can open and airtight rolling curtain type door (21) on top cover;
Data acquisition and analytic system (3), it is positioned at the side of top cover (2) and below; Described data acquisition and analytic system (3) comprising:
Signals collecting, analysis, control module (31);
For detection of and the sensor of transmission temperature, air pressure, optical signalling;
Gas sample tube (35), for gathering gas from box house, is transferred to signals collecting, analysis, control module (31).
2. the rising measuring instrument of canopy photosynthesis as claimed in claim 1, is characterized in that, in described casing (1), 2-8 gas evenly mixing device (11) is set.
3. the rising measuring instrument of canopy photosynthesis as claimed in claim 1, is characterized in that, described casing (1) is square, and using transparent material as wall, using aluminium alloy or makrolon material as framework, wall is embedded in framework.
4. the rising measuring instrument of canopy photosynthesis as claimed in claim 3, is characterized in that, the seam crossing of frame material is with the chimeric connection of emboss pit, and the seam crossing of wall and framework junction, frame material arranges sealing strip.
5. the rising measuring instrument of canopy photosynthesis as claimed in claim 1, is characterized in that, described rolling curtain type door (21) adopts light transmission film (22) as door body, with the opening and closing of reel device (23) control gate body.
6. the rising measuring instrument of canopy photosynthesis as claimed in claim 1, is characterized in that, described for detection of and the sensor of transmission temperature, air pressure, optical signalling comprise:
Temperature sensor (32), for being transferred to the temperature signal of box house signals collecting, analysis, control module (31);
Baroceptor (33), for being transferred to the air pressure signal of box house signals collecting, analysis, control module (31);
Light quantum sensor (34), for being transferred to the optical radiation signal of box house signals collecting, analysis, control module (31).
7. the rising measuring instrument of canopy photosynthesis as claimed in claim 1, it is characterized in that, described signals collecting, analysis, control module (31) comprising: the software and hardware system of real time record and analysis temperature, air pressure, optical radiation and gas componant and/or display screen (36).
8. the rising measuring instrument of canopy photosynthesis as claimed in claim 6, it is characterized in that, in the time of top cover and casing sealing, described signals collecting, analysis, control module (31) are positioned at outside casing, and described temperature sensor (32), baroceptor (33), light quantum sensor (34), gas sample tube (35) are positioned at casing.
9. the rising measuring instrument of canopy photosynthesis as claimed in claim 1, it is characterized in that, described gas evenly mixing device (11) is rectangular structure, upper end face and lower end face arrange respectively air intake opening (111), a side arranges multiple gas outlets (112), and all air intake openings and gas outlet are all communicated with.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320891829.6U CN204008587U (en) | 2013-12-31 | 2013-12-31 | The rising measuring instrument of a kind of canopy photosynthesis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320891829.6U CN204008587U (en) | 2013-12-31 | 2013-12-31 | The rising measuring instrument of a kind of canopy photosynthesis |
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| CN204008587U true CN204008587U (en) | 2014-12-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018015A (en) * | 2016-08-05 | 2016-10-12 | 福建师范大学 | Static box for measuring methane transmission rate of mangrove forest trunks |
| CN106814167A (en) * | 2017-03-13 | 2017-06-09 | 内蒙古农业大学 | A kind of detachable device for determining Shrubland respiratory rate |
| CN107219331A (en) * | 2017-05-05 | 2017-09-29 | 北京农业信息技术研究中心 | One kind of plant population photosynthetic rate measurement apparatus and method |
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2013
- 2013-12-31 CN CN201320891829.6U patent/CN204008587U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018015A (en) * | 2016-08-05 | 2016-10-12 | 福建师范大学 | Static box for measuring methane transmission rate of mangrove forest trunks |
| CN106814167A (en) * | 2017-03-13 | 2017-06-09 | 内蒙古农业大学 | A kind of detachable device for determining Shrubland respiratory rate |
| CN107219331A (en) * | 2017-05-05 | 2017-09-29 | 北京农业信息技术研究中心 | One kind of plant population photosynthetic rate measurement apparatus and method |
| CN107219331B (en) * | 2017-05-05 | 2019-08-13 | 北京农业信息技术研究中心 | One plant population photosynthetic rate measuring device and method |
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Address after: 200031 Yueyang Road, Shanghai, No. 319, No. Patentee after: Shanghai Institute of nutrition and health, Chinese Academy of Sciences Address before: 200031, 319 Yueyang Road, Shanghai, Shanghai, Xuhui District Patentee before: SHANGHAI INSTITUTES FOR BIOLOGICAL SCIENCES, CHINESE ACADEMY OF SCIENCES |
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