CN206696275U - A kind of device for being used to measure soil respiration - Google Patents
A kind of device for being used to measure soil respiration Download PDFInfo
- Publication number
- CN206696275U CN206696275U CN201720341087.8U CN201720341087U CN206696275U CN 206696275 U CN206696275 U CN 206696275U CN 201720341087 U CN201720341087 U CN 201720341087U CN 206696275 U CN206696275 U CN 206696275U
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- cylinder
- cavity volume
- soil respiration
- conduit
- measure
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses a kind of device for being used to measure soil respiration, including the cylinder of one end open, disk body and CO2Analyzer, disk body enter a liquid level cavity volume formed below for disk body, a sample to be detected, CO are placed with cavity volume built with liquid, the opening portion back-off of cylinder2Analyzer is connected by a conduit with cavity volume.Relative to existing complicated measurement apparatus, the present apparatus is easy, it is practical, form to low cost measurement apparatus suitable for basin body soil respiration, while by cleverly using hydraulic seal principle, realize the accurate measurement of Soil Respiration.
Description
Technical field
The utility model is related to soil surveying field, more particularly to it is a kind of it is simple and practical, can accurately measure soil respiration work
Device.
Background technology
Soil respiration is to characterize the biological indicator of the soil texture and fertilizer efficiency.Soil respiration mainly includes Soil Microorganism
Breathing, root system respiration and soil animal breathing, reflect biological activity of soil and soil metabolism intensity, while be also plant canopy
Following some growth provides energy and carbon source.Some scholars begin to find soil respiration to plant growth since eighties of last century
Influence, and try every possible means determine soil respiration.It is difficult to exclude interference in air flow factor pair although attempting some assay methods
The influence of measurement result accuracy.
Existing assay method has two methods of indirect determination and directly measure.There is researcher by studying temperature and moisture
Influence to soil respiration, establish the size that regression equation calculation draws soil respiration indirectly.Indirect method, which needs to establish, to be surveyed
Quantitative relationship between index and soil, and this relation applies in general to the specific ecosystem.Therefore the application of this kind of method
With larger spatio-temporal restriction, and measurement result is difficult to be compared with other method measurement result.And directly determine soil
The method of earth breathing is basically divided into three kinds of static gas method, dynamic air chamber method and microclimate method, and wherein static gas method includes
Static alkali absorption method and static sealed gas chamber method.The precision for being limited in that measure of soda solution grouting is undesirable.Dynamic air chamber method
Generally include Alkali absorption method and the infrared CO of open gas flow2Analytic approach.Dynamic method is to use to be free of CO2Air or known
The wherein CO of concentration2, then infrared gas analysis are used on the pedotheque surface that is covered with certain speed by a closed container
The CO of instrument measurement wherein gas2Content.According to the CO of disengaging container2Concentration difference, calculate soil respiration rates.Dynamic method is suitable to survey
Determine moment and whole section of time CO2The speed of discharge.The shortcomings that dynamic method for the gentle indoor and outdoor of air flow rate pressure differential
To the negative effect caused by determining.
To sum up, two methods of existing either indirect determination and directly measure, technology presence used is excessively complicated, instrument
The characteristics of device high equipment cost, be not suitable for large-scale application.
Utility model content
The utility model aims to overcome that existing measure soil respiration technology presence is excessively complicated, and instrument and equipment cost is high
The shortcomings that, there is provided the high simple obturator of a kind of simplicity, practicality, low cost, measure accuracy is suitable for basin body soil respiration
Measure, to solve the above problems.
To achieve the above object, the utility model discloses a kind of device for being used to measure soil respiration, including one end to open
Cylinder, disk body and the CO of mouth2Analyzer, the disk body enter the disk built with liquid, the opening portion back-off of the cylinder
A liquid level cavity volume formed below for body, a sample to be detected, the CO are placed with the cavity volume2Analyzer passes through a conduit
It is connected with the cavity volume.
Further, the sample to be detected is the basin body equipped with soil to be measured.
Further, the cylinder is the lucite cylinder of energy printing opacity.
Further, the conduit is flexible conduit, and the end that the conduit is located in the cavity volume is fixed by glue
On the inwall of the cylinder, the edge that the cylinder is located under the liquid levels is provided with breach or through hole, the conduit
By under the liquid levels and by the cavity volume and the CO2Analyzer connects.
Further, the part on the conduit outside the cylinder is provided with switch element.
Further, the switch element is switch valve or spring clip.
Further, in addition to a temperature compensator, described temperature compensator one end connect the cavity volume, the other end and institute
State CO2Analyzer connects, and by temperature compensator, further increases the accuracy of measurement.
Compared with prior art, the utility model has the advantage of：
1st, relative to existing complicated measurement apparatus, present apparatus simplicity, practicality, form to low cost suitable for basin body soil
The measurement apparatus of breathing.
2nd, by cleverly using hydraulic seal principle, the accurate measurement of Soil Respiration is realized.
3rd, connection measuring instrument and cavity to be measured are passed through under liquid level by conduit, simply cleverly solves conduit
Sealing problem when passing through cylinder.
4th, the sealing device platform of cylinder and disk body composition, it quick and easy can build, can quickly carry out measurement.
Below with reference to accompanying drawings, the utility model is described in further detail.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing further understanding to of the present utility model, of the present utility model
Schematic description and description is used to explain the utility model, does not form to improper restriction of the present utility model.In accompanying drawing
In：
Fig. 1 is the disclosed schematic front view for being used to measure the device of soil respiration of the utility model preferred embodiment；
Fig. 2 is the disclosed axonometric schematic diagram for being used to measure the device of soil respiration of the utility model preferred embodiment.
Marginal data：
1st, cylinder；2nd, glue；3rd, conduit；4th, disk body；5th, sample；6th, liquid.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
It is used to measure the device of soil respiration present embodiment discloses a kind of, as Figure 1-Figure 2, including one end open
Cylinder 1, disk body 4 and CO2Analyzer（For conventional CO2Analyzer, do not represent in figure）, disk body 4 is built with liquid 6, main sealing
Effect, in the present embodiment, the liquid is water, preferably distilled water.The opening portion back-off of cylinder 1 enters the following shape of liquid level of disk body 4
Into a cavity volume, a sample 5 to be detected is placed with cavity volume, in the present embodiment, sample 5 to be detected is equipped with soil to be measured
Basin body.Wherein, CO2Analyzer is connected by a conduit 3 with cavity volume, and in the present embodiment, conduit 3 is flexible silica gel hose,
The end that the conduit 3 is located in cavity volume is fixed on by glue 2 on the inwall of cylinder 1, and it is subsurface that cylinder 1 is located at liquid 6
Edge is provided with breach or through hole, and conduit 3 is by under the liquid level of liquid 6 and by cavity volume and CO2Analyzer connects.In the present embodiment
In, cylinder 1 is the lucite cylinder of energy printing opacity.In order to control the beginning of measurement experiment and end, it is located at cylinder 1 on conduit 3
Part in addition is provided with the element that switch valve or spring clip etc. realize switching function, in order to further increase measurement data
Accuracy, in the present embodiment, in addition to a temperature compensator, temperature compensator one end connection cavity volume, the other end and CO2Analysis
Instrument connects, and relative to existing complicated measurement apparatus, present apparatus simplicity, practicality, forms to low cost and is exhaled suitable for basin body soil
The measurement apparatus of suction, while by cleverly using the sealing principle of liquid 6, realize the accurate measurement of Soil Respiration.
Further, connection measuring instrument and cavity to be measured are passed through under liquid level by conduit 3, simply cleverly solves conduit 3
Sealing problem when by cylinder 1.And among practical application, the sealing device platform of cylinder 1 and the composition of disk body 4 can be fast
Speed is simply built, and can rapidly carry out measurement.
Further, verified by Experimental comparison, the device can reach even better than with existing sealed gas chamber method institute
The testing result of the instrument and equipment of use, but the cost and detection time that detect all greatly reduce.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (7)
1. a kind of device for being used to measure soil respiration, it is characterised in that cylinder, disk body and CO including one end open2Analysis
Instrument, the disk body enter below the liquid level of the disk body built with liquid, the opening portion back-off of the cylinder and form a cavity volume, institute
State and a sample to be detected, the CO are placed with cavity volume2Analyzer is connected by a conduit with the cavity volume.
2. according to claim 1 be used to measure the device of soil respiration, it is characterised in that the sample to be detected is
Basin body equipped with soil to be measured.
3. the device according to claim 2 for being used to measure soil respiration, it is characterised in that the cylinder is energy printing opacity
Lucite cylinder.
4. the device according to claim 3 for being used to measure soil respiration, it is characterised in that the conduit is led for flexibility
Pipe, the end that the conduit is located in the cavity volume are fixed on by glue on the inwall of the cylinder, and the cylinder is located at institute
State the edge under liquid levels and be provided with breach or through hole, the conduit pass through under the liquid levels and by the cavity volume and institute
State CO2Analyzer connects.
5. the device according to claim 4 for being used to measure soil respiration, it is characterised in that positioned at described on the conduit
Part outside cylinder is provided with switch element.
6. the device according to claim 5 for being used to measure soil respiration, it is characterised in that the switch element is switch
Valve or spring clip.
7. according to any described devices for being used to measure soil respiration of claim 1-6, it is characterised in that also including a temperature
Compensator, described temperature compensator one end connect the cavity volume, the other end and the CO2Analyzer connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341087.8U CN206696275U (en) | 2017-04-01 | 2017-04-01 | A kind of device for being used to measure soil respiration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341087.8U CN206696275U (en) | 2017-04-01 | 2017-04-01 | A kind of device for being used to measure soil respiration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206696275U true CN206696275U (en) | 2017-12-01 |
Family
ID=60440410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720341087.8U Expired - Fee Related CN206696275U (en) | 2017-04-01 | 2017-04-01 | A kind of device for being used to measure soil respiration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206696275U (en) |
-
2017
- 2017-04-01 CN CN201720341087.8U patent/CN206696275U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20180401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |