CN109406224A - Soil ammonia volatilization collection device - Google Patents
Soil ammonia volatilization collection device Download PDFInfo
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- CN109406224A CN109406224A CN201811448741.0A CN201811448741A CN109406224A CN 109406224 A CN109406224 A CN 109406224A CN 201811448741 A CN201811448741 A CN 201811448741A CN 109406224 A CN109406224 A CN 109406224A
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- fixation member
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2294—Sampling soil gases or the like
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
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- Soil Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The present invention relates to a kind of soil ammonia volatilization collection devices, comprising: ammonia absorption piece, fixation member, barrier structure of the setting number containing phosphoglycerol solution；Fixation member is tubular hollow structure；Barrier structure includes shielding cap and multiple support columns；Shielding cap includes shutter bottom and blocks edge, blocks and is fixedly connected along vertical with shutter bottom；The ammonia absorption piece of first setting number is placed on the first end of the inside of fixation member, and the second end of the inside of fixation member is arranged in the ammonia absorption piece of the second setting number；Shielding cap is fixed on above fixation member by support column, the first end of support column is fixedly connected with shutter bottom, the second end of support column passes perpendicularly through the barrel of fixation member, and the second end insertion soil of support column is used for ammonia volatilization collection device is fixed in the soil.It can guarantee that collection device remains to the volatilization ammonia in normal acquisition detection soil in inclement weather using above-mentioned apparatus.
Description
Technical field
The present invention relates to agriculture test technical fields, and in particular to a kind of soil ammonia volatilization collection device.
Background technique
China is maximum nitrogen fertilizer production and country of consumption in the world, and wherein farmland amount of application of nitrogen fertilizer accounts for world's total amount
35%.But China's utilization rate of nitrogen fertilizer is lower, leads to a large amount of nitrogen loss, and then brings economic, ecology, the negative effect of society
It answers.
Nitrogenous fertilizer in being manured into soil is lost by approach such as ammonia volatilization, one denitrifications of runoff, leaching and nitrification.Its
Middle ammonia volatilization proportion in the nitrogen loss of paddy field is larger, is the main path of paddy field nitrogen loss.Farmland ammonia loss by volatilization
The total amount of nitrogen of nitrogen Zhan 1%-47%.The nitrogenous fertilizer gaseous loss that soil ammonia volatilization causes simultaneously, will lead to agricultural non -point pollution,
Also atmospheric transparency and air quality be will affect, and cause PM2.5, while the ammonia to volatilize can also reenter natural ecosystem
System increases the nitrogen content of soil and water body, causes eutrophication.Soil ammonia volatilization increases Total Nitrogen loss, reduces nitrogen
Fertile utilization rate, has an adverse effect to environment.
Therefore how by optimization farming measure, reducing farmland ammonia volatilization becomes the sustainable research of current crop production for research
One of hot spot.And top priority be then find it is a kind of it is easy to operate, device is simple and convenient, the accurate ammonia volatilization of determination data is surveyed
Determine method.
At present collect measurement soil ammonia volatilization method mainly have closed chamber method, dynamic case method, microclimate method, Wind tunnel,
Mass balance approach, sealed gas chamber method and venting method.Wherein the corresponding device static chamber of closed chamber method is suitble to indoor measurement, is not suitable for
Standard method as the research of outdoor soil original flavor soil ammonia volatilization.Although the device of dynamic case method is more sensitive, extraneous ring
Border is affected to the detection of its device, causes detection numerical value unstable.Though microclimate method and the corresponding device of Wind tunnel numerical value
Right testing result is more accurate, but device is expensive, and occupied area is larger, excessively multiple as field plot trial apparatus structure
It is miscellaneous, cost is too high.Instrument and equipment needed for mass balance approach is simple, can cover biggish area, and still, the method needs to measure
The difference of tested ammonia density and area's background ammonia density, therefore it is more suitable for that background ammonia density is very low and the biggish survey of emission intensity flux
It is fixed.Sealed gas chamber method is usually used in that plot experiment, device are simple, but the ammonia volatilization process under air-tight state be completely in it is a kind of not from
Right state, influences measurement result.Venting method is further developed on the basis of sealed gas chamber method, and cell many places are suitable for
Multiple multiple experimental study is managed, and structure is simple.During test, it is ensured that the circulation of device inner air and outer air overcomes tradition
Air-locked disadvantage inside and outside closed subtraction unit, and it is easy to operate compared with the device of other methods, the rate of recovery is high, the coefficient of variation
It is low, play a significant role for Field trapping ammonia volatilization.But although the corresponding intrument of venting method is a kind of operation letter
Just, numerical value also relatively accurate ammonia volatilization measurement device.But have the disadvantage in that 1) rainy day is unavailable.Rainfall can soak sea
Silk floss influences data reliability.2) strong wind day is unavailable.Since installation weight is smaller, strong wind is easy to blow focusing device, influences to measure.
Summary of the invention
It is filled in view of this, being collected it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of soil ammonia volatilization
It sets.Solve the problems, such as that ammonia volatilization collection device practicability in bad weather is low.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of soil ammonia volatilization collection device, comprising:
Set ammonia absorption piece, fixation member, barrier structure of the number containing phosphoglycerol solution；
The fixation member is tubular hollow structure；The barrier structure includes shielding cap and multiple support columns；The screening
Gear cap includes shutter bottom and blocks edge, and described block is fixedly connected along vertical with the shutter bottom；
The ammonia absorption piece of first setting number is placed on the first end of the inside of the fixation member, for absorbing soil
In volatilization ammonia；The second end of the inside of the fixation member is arranged in the ammonia absorption piece of second setting number, for completely cutting off
Gaseous ammonia in air；The first end of the fixation member between soil at a distance from be less than the fixation member second end and soil
Distance between earth；The fixation member is vertically placed on above soil；
The shielding cap is fixed on above the fixation member by the support column, wherein the shutter bottom exists
The surface of the fixation member, and the edge of the shutter bottom exceeds the edge of the fixation member, it is described to block edge
The sagging second end lower than the fixation member；
The first end of the support column is fixedly connected with the shutter bottom, and the second end of the support column passes perpendicularly through
The second end insertion soil of the barrel of the fixation member, the support column is used to the ammonia volatilization collection device being fixed on soil
In earth.
Optionally, the ammonia absorption piece is to have spongy material.
Optionally, the ammonia absorption piece is sponge.
Optionally, the fixation member is cylinder plastic tube or polygon plastic tube.
Optionally, if the fixation member is cylinder plastic tube, the diameter of the shutter bottom is than the cylinder plastics
The big setting length range of the diameter of pipe.
Optionally, the length range that sets is 2-3 centimetre.
Optionally, the cylinder plastic tube is cylinder PC pipe or cylinder pvc pipe；The polygon plastic tube is polygon PC
Pipe or polygon pvc pipe.
Optionally, the barrier structure is metal material.
Optionally, the support column is at least 3.
Optionally, the fixation member includes the first ring-like protrusion and the second ring-like protrusion, the described first ring-like raised position
First end in the inside of the fixation member, the second ring-like protrusion are set to the second end of the inside of the fixation member,
The ammonia absorption piece is respectively placed in the described first ring-like protrusion and the described second ring-like high spot, the first ring-like protrusion
It is used to prevent the downslide of the ammonia absorption piece with the described second ring-like protrusion.
Technical solution provided by the present application can include the following benefits:
A kind of soil ammonia volatilization collection device disclosed herein, comprising: setting number contains phosphoglycerol solution
Ammonia absorption piece, fixation member, barrier structure；Fixation member is tubular hollow structure；Barrier structure includes shielding cap and more
A support column；The shielding cap includes shutter bottom and blocks edge, and described block is fixed along vertical with the shutter bottom
Connection；The ammonia absorption piece of first setting number is placed on the first end of the inside of fixation member, for absorbing waving in soil
Send out ammonia；The second end of the inside of fixation member is arranged in the ammonia absorption piece of second setting number, for completely cutting off the gas in air
Body ammonia；The first end of fixation member between soil at a distance from be less than fixation member second end between soil at a distance from；Fixed part
Part is vertically placed on above soil；The shielding cap is fixed on above the fixation member by the support column, wherein described
Shutter bottom is in the surface of the fixation member, and the edge of the shutter bottom exceeds the side of the fixation member
Edge, it is described to block along the sagging second end lower than the fixation member；The first end of the support column and the shutter bottom
It is fixedly connected, the second end of support column is used for ammonia volatilization collection device is fixed in the soil.The application uses above-mentioned apparatus root
It prevents sleet from falling into fixation member when can be in rain and snow according to shutter bottom, influences the suction of the gaseous ammonia of ammonia absorption piece
Receive, and on shielding cap blocking along hang down to fixation member second end lower section, can be prevented in dusty wind weather dust storm into
Enter ammonia absorption piece, by shutter bottom and block along can prevent ammonia absorption piece under the bad weathers such as dust storm sleet by
The inaccuracy of testing result caused by the influence of weather, the low problem of precision.The support column of collection device can in the application simultaneously
Across fixation member, it is inserted directly into soil, it is with this that ammonia volatilization collection device is fixed in the soil, prevent dust storm sleet to ammonia
The impact of volatilization collection device, remains to normal use, and do not influence testing result and precision completely in bad weather.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the soil ammonia volatilization collection device structure chart that the embodiment of the present invention one provides.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Fig. 1 is the soil ammonia volatilization collection device structure chart that the embodiment of the present invention one provides.As shown in Figure 1, a kind of soil
Ammonia volatilization collection device, comprising:
Set number the ammonia absorption piece 103 containing phosphoglycerol solution, fixation member 102, barrier structure；
The fixation member 102 is tubular hollow structure；The barrier structure includes shielding cap and multiple support columns 1013；
The shielding cap includes shutter bottom 1011 and blocks along 1012, and described block is hung down along 1012 with the shutter bottom 1011
Directly it is fixedly connected；
The ammonia absorption piece 1032 of first setting number is placed on the first end of the inside of the fixation member 102, is used for
Absorb the volatilization ammonia in soil；The ammonia absorption piece setting 1031 of second setting number is the second of the inside of the fixation member
End, for completely cutting off the gaseous ammonia in air；The first end of the fixation member 102 between soil at a distance from be less than the fixed part
The second end of part between soil at a distance from；The fixation member 102 is vertically placed on above soil；
The shielding cap is fixed on 102 top of fixation member by the support column 1013, wherein the shutter
Bottom 1011 is in the surface of the fixation member 102, and the edge of the shutter bottom 1011 exceeds the fixation member
Edge, it is described to block along the 1012 sagging second ends lower than the fixation member；
The first end of the support column 1013 is fixedly connected with the shutter bottom 1011, and the of the support column 1013
Two ends pass perpendicularly through the barrel of the fixation member, and the second end insertion soil of the support column 1013 is used for the ammonia volatilization
Collection device is fixed in the soil.
Wherein, further, the ammonia absorption piece is to have spongy material；Such as: sponge.It should be noted that
It is that the selection of the material of the ammonia absorption piece in the application is not unique, as long as there is the material of absorbent function, which inhales
What the selection of the material of receipts component can be selected in advance according to user demand.
Fixation member is cylinder plastic tube or polygon plastic tube；It can be PC pipe or pvc pipe.It should be noted that this
The selection of the material of fixation member in application is not unique, as long as the material chosen does not influence the function of ammonia absorption piece i.e.
Can, the material of fixation member can be predefined according to user demand.Simultaneously, it should be noted that the size of ammonia absorption piece with
The size of the inner space of fixation member is almost consistent, to guarantee that ammonia absorption piece can be placed in fixation member.
Wherein, the barrier structure in the present apparatus selects metal material that can preferably keep away because of the robustness of metal material
Exempt from destruction of the fixation member by external environment.And the stability in order to guarantee collection device, the support column in the application is at least
It is 3, can guarantees that collection device can be stable assigns on soil with this.
It can be absorbed according to the volatilization ammonia in ammonia volatilization collection device soil using above-described embodiment, according to shutter
It prevents sleet from falling into fixation member when bottom can be in rain and snow, influences the absorption of the gaseous ammonia of ammonia absorption piece, and hide
Blocking along the lower section for the second end for hanging down to fixation member in gear cap can prevent dust storm from entering ammonia absorption in dusty wind weather
Component, by shutter bottom and blocking edge can prevent ammonia absorption piece under the bad weathers such as dust storm sleet by the shadow of weather
The inaccuracy of testing result caused by ringing, the low problem of precision.The support column of collection device can pass through fixation in the application simultaneously
Component is inserted directly into soil, with this that ammonia volatilization collection device is fixed in the soil, prevents dust storm sleet from collecting to ammonia volatilization
The impact of device remains to normal use in bad weather, and does not influence testing result and precision completely.
On the basis of the above embodiments, in order to introduce the ammonia volatilization collection device in the application, the application in more detail
In additionally provide another detailed embodiment, concrete condition is as follows:
Ammonia volatilization collection device in the present embodiment, comprising:
Set ammonia absorption piece, fixation member, barrier structure of the number containing phosphoglycerol solution；Fixation member includes
First ring-like protrusion and the second ring-like protrusion.The first ring-like protrusion is located at the first end of the inside of the fixation member, institute
The second end that the second ring-like protrusion is set to the inside of the fixation member is stated, the ammonia absorption piece is respectively placed in described first
Ring-like protrusion and the described second ring-like high spot, the first ring-like protrusion and the described second ring-like protrusion are used to prevent described
The downslide of ammonia absorption piece.Wherein select cylinder PC pipe as fixation member, the diameter of shutter bottom is than the cylinder at this time
The big setting length range of the diameter of PC pipe, setting length range the present embodiment herein are set as 2-3cm.
Ammonia absorption piece is two simultaneously, which is the water suction shaping sponge of thickness 2cm, diameter 16cm.The sea
Silk floss has been placed into advance in the keg of two diameter 17cm, is drawn 25ml phosphoglycerol solution with syringe, is injected uniformly to sea
On silk floss, repeatedly extrudes sponge and phosphoglycerol solution in bucket is all absorbed on sponge, and make phosphoglycerol solution uniform
Until in sponge.Wherein, 25ml phosphoglycerol solution is prepared as 50ml phosphoric acid+40ml glycerine, is settled to 1000ml.
The one piece of one end being put into inside PC pipe of sponge for impregnating sponge solution is used to absorb the gaseous ammonia volatilized in soil, another piece
It is placed on the gaseous ammonia that top (other end) is used to completely cut off in atmosphere.
The the first ring-like protrusion and the second ring-like high spot that above-mentioned two sponge is individually positioned in PC pipe, are used for absorbent earth
The sponge for the gaseous ammonia volatilized in earth is placed on the first ring-like high spot at the first end of fixation member, for completely cutting off in atmosphere
The sponge of gaseous ammonia be placed on the second ring-like high spot at the second end of fixation member.The support column of ammonia volatilization collection device
It is inserted into soil, and then detection is acquired by volatilization ammonia of the ammonia volatilization collection device to soil.It is acquired 24 hours in device
Afterwards, the sponge of gaseous ammonia in PC pipe absorbed inside soil is taken out with tweezers and is put into plastic bottle, is sealed.It absorbs in atmosphere
Replacements in sponge 3-4 days of gaseous ammonia are primary.The sponge being loaded into plastic bottle takes back laboratory, and 300ml is added in plastic bottle
The KCL solution of 1mol/L, after shaking 1h, with the concentration of the volatilization ammonia in Flow Analyzer measurement soil.
Using above-mentioned collection device not only can according to shutter bottom, block edge and support column guarantee collection device not by
Boisterous influence or not acquisition testing as a result, the ring-like raised energy in above-mentioned collection device inside fixation member simultaneously
The downslide of ammonia absorption piece is enough prevented, further ensures the detection accuracy of gaseous ammonia.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that in the description of the present invention, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
Refer at least two.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of soil ammonia volatilization collection device characterized by comprising
Set ammonia absorption piece, fixation member, barrier structure of the number containing phosphoglycerol solution；
The fixation member is tubular hollow structure；The barrier structure includes shielding cap and multiple support columns；The shielding cap
Including shutter bottom and edge is blocked, described block is fixedly connected along vertical with the shutter bottom；
The ammonia absorption piece of first setting number is placed on the first end of the inside of the fixation member, for absorbing in soil
Volatilize ammonia；The second end of the inside of the fixation member is arranged in the ammonia absorption piece of second setting number, for completely cutting off air
In gaseous ammonia；The first end of the fixation member between soil at a distance from be less than the fixation member second end and soil between
Distance；The fixation member is vertically placed on above soil；
The shielding cap is fixed on above the fixation member by the support column, wherein the shutter bottom is described
The surface of fixation member, and the edge of the shutter bottom exceeds the edge of the fixation member, it is described to block along sagging
Lower than the second end of the fixation member；
The first end of the support column is fixedly connected with the shutter bottom, and the second end of the support column passes perpendicularly through described
The second end insertion soil of the barrel of fixation member, the support column is used to the ammonia volatilization collection device being fixed on soil
In.
2. soil ammonia volatilization collection device according to claim 1, which is characterized in that the ammonia absorption piece is with suction
Aqueous material.
3. soil ammonia volatilization collection device according to claim 2, which is characterized in that the ammonia absorption piece is sponge.
4. soil ammonia volatilization collection device according to claim 1, which is characterized in that the fixation member is cylinder plastics
Pipe or polygon plastic tube.
5. soil ammonia volatilization collection device according to claim 4, which is characterized in that if the fixation member is cylinder plastic
Expects pipe, the diameter of shutter bottom setting length range bigger than the diameter of the cylinder plastic tube.
6. soil ammonia volatilization collection device according to claim 5, which is characterized in that the length range that sets is 2-3
Centimetre.
7. soil ammonia volatilization collection device according to claim 5, which is characterized in that the cylinder plastic tube is cylinder PC
Pipe or cylinder pvc pipe；The polygon plastic tube is polygon PC pipe or polygon pvc pipe.
8. soil ammonia volatilization collection device according to claim 1, which is characterized in that the barrier structure is metal material
Matter.
9. soil ammonia volatilization collection device according to claim 1, which is characterized in that the support column is at least 3.
10. soil ammonia volatilization collection device according to claim 1, which is characterized in that the fixation member includes first
Ring-like protrusion and the second ring-like protrusion, the first ring-like protrusion are located at the first end of the inside of the fixation member, and described the
Two ring-like protrusions are set to the second end of the inside of the fixation member, and it is ring-like that the ammonia absorption piece is respectively placed in described first
The raised and described second ring-like high spot, the first ring-like protrusion and the described second ring-like protrusion are used to prevent the ammonia from inhaling
Receive the downslide of component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448741.0A CN109406224A (en) | 2018-11-29 | 2018-11-29 | Soil ammonia volatilization collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448741.0A CN109406224A (en) | 2018-11-29 | 2018-11-29 | Soil ammonia volatilization collection device |
Publications (1)
| Publication Number | Publication Date |
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| CN109406224A true CN109406224A (en) | 2019-03-01 |
Family
ID=65456459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811448741.0A Pending CN109406224A (en) | 2018-11-29 | 2018-11-29 | Soil ammonia volatilization collection device |
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| Country | Link |
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| CN (1) | CN109406224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115060671A (en) * | 2022-06-09 | 2022-09-16 | 中国科学院南京土壤研究所 | Laser spectrum technology-based farmland ammonia volatilization box type multipoint synchronous in-situ real-time monitoring method |
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