CN204008635U - A kind of pedestal of measuring for soil respiration - Google Patents
A kind of pedestal of measuring for soil respiration Download PDFInfo
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- CN204008635U CN204008635U CN201420366262.5U CN201420366262U CN204008635U CN 204008635 U CN204008635 U CN 204008635U CN 201420366262 U CN201420366262 U CN 201420366262U CN 204008635 U CN204008635 U CN 204008635U
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- soil
- pedestal
- respiration
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- plastic barrel
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Abstract
The utility model discloses a kind of pedestal of measuring for soil respiration, it comprises cylindrical PVC plastic barrel (1), offers more than one soil material exchange hole (2) in the region of burying of cylindrical PVC plastic barrel (1).The utility model configuration is simple, be easy to make, compare the existing pedestal of measuring for soil respiration and there is following effect: pedestal good stability, pedestal buries deeply, weaken the soil disturbance that in mensuration process, pedestal shakiness causes, improved the accuracy of soil respiration measured value; Holard thermal equilibrium is high, and in cylindrical PVC plastic barrel lower end, four equity places arrange slotted eye, are conducive to the adjusting of the inside and outside Soil moisture and temperature of pedestal, realize the self-equilibrating of soil hydro-thermal, the relation of true reflect soil respiratory rate and holard thermal distortion.
Description
Technical field
The utility model relates to a kind of pedestal of measuring for soil respiration, belongs to soil respiration mensuration equipment technical field.
Background technology
Soil respiration refers to that soil discharges CO
2process, be mainly derived from oxidation and the root system respiration of Soil Microorganism to organic substance, few part is carried out breathing and the chemical oxidation to Soil Protozoan.In recent years, along with Global climate change becomes the hot fields of the public and scientific research, CO
2as one of most important greenhouse gases, it is particularly important that the Accurate Determining of its source, remittance and flux seems.Soil is the carbon storehouse that occurring in nature is huge, is Atmospheric CO
2important source or remittance, its flux is huge, CO in soil
2slight variation also can cause Atmospheric CO
2the significant change of concentration.So, in soil respiration mensuration process, CO
2the Accurate Measurement of flux has become very urgent problem.
The climatic factor such as temperature and moisture affects the growth level of soil microorganism metabolism and plant by the supply of regulation and control soil nutrient, quantity and activity etc., and then affects soil respiration process.Research is found, the CO that soil respiration discharges
2will be along with earth surface temperature raises and increases, temperature raises and soil effect increases the positive feedback effect that forms global warming.Statement according to the ideal relationship of soil respiration speed and temperature under Global Scale: along with the rising of temperature, soil respiration speed increases gradually.Soil moisture is also very important on the impact of soil respiration, and especially, arid in the situation that, in the time that soil moisture becomes stress factors, may replace temperature becomes the major control factor of soil respiration.Soil respiration speed is due to moisture restriction and lower under drying condition, and along with the increase soil respiration speed of soil moisture raises gradually, in the time of the suitableeest soil moisture content, soil respiration speed is the highest.
At present, the mensuration of soil respiration mainly adopts the static method in the direct method of measurement, is widely used soil respiration measuring system (as LI-8100) and carries out the mensuration of soil respiration speed.Conventional respiratory measurement system needs supporting measurement pedestal, and soil respiration measuring system is connected on pedestal, before carrying out soil respiration and measuring, pedestal is squeezed into and is measured sample.The pedestal that existing this soil respiration is measured has the following disadvantages: 1, base height is 11.5cm, and the maximum 8cm of the depth of burying, bury more shallow, easily causes soil disturbance on soft soil while use, improves CO in soil
2emission level, reduce the accuracy of soil respiration speed measurement value.2, existing base wall has intercepted the exchange process that comprises soil hydro-thermal, nutriment etc. inside and outside pedestal, causes the differentiation of the inside and outside soil temperature and humidity of pedestal etc., and the measured value obtaining in this case can not completely truly reflect the soil respiration process on sample ground.
Summary of the invention
It is better that the technical problems to be solved in the utility model is to provide a kind of stability, can measure more realistically the pedestal of soil respiration speed, can overcome the deficiencies in the prior art.
The technical solution of the utility model is that, for the pedestal of soil respiration mensuration, it comprises cylindrical PVC plastic barrel, offers more than one soil material exchange hole in the region of burying of cylindrical PVC plastic barrel.
Described cylindrical PVC plastic barrel diameter is 20-22cm, highly for 14-17cm.
The arc length of soil material exchange hole is 3-5cm, highly for 0.5-1cm.
The quantity of soil material exchange hole is four and is arranged symmetrically with based on center of circle tangent plane, and between two soil material exchange holes, vertical direction distance is 5cm.
Compared with the prior art, the utility model configuration is simple, be easy to make, compare the existing pedestal of measuring for soil respiration and there is following effect: pedestal good stability, pedestal buries deeply, can reach 11-13cm, weaken the soil disturbance that in mensuration process, pedestal shakiness causes, improve the accuracy of soil respiration measured value; Holard thermal equilibrium is high, at the cylindrical PVC plastic barrel region soil material exchange hole that is arranged that buries, be conducive to the adjusting of the inside and outside Soil moisture and temperature of pedestal, realize the self-equilibrating of soil hydro-thermal, the relation of true reflect soil respiratory rate and holard thermal distortion.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment, as shown in Figure 1, the pedestal of measuring for soil respiration, its main body adopts cylindrical PVC plastic barrel 1, cylindrical PVC plastic barrel 1 diameter is 20-22cm, highly for 14-17cm, offering more than one soil material exchange hole 2 in the region of burying of cylindrical PVC plastic barrel 1, is four in figure, wherein the arc length of soil material exchange hole 2 be 3-5cm, highly for 0.5-1cm.In the time of concrete processing soil material exchange hole 2, its quantity is chosen for four, and four soil material exchange holes 2 are arranged symmetrically with based on center of circle tangent plane, and two 2 of soil material exchange holes vertical direction distances are 5cm.
When use, bury at random 3 cylindrical PVC plastic barrels 1 underground according to certain spacing distance on the ground at the mensuration sample of choosing, depth of burying 11-13cm, earth's surface 1-5cm is exposed in cylindrical PVC plastic barrel 1 upper end.Bury underground after 24 hours (reason: while burying pedestal underground can to sample cause certain disturbance, need the regular hour just can return to original state) just can support the use soil respiration and measure system (as LI-8100) and carry out the mensuration of sample ground soil respiration speed.
Claims (4)
1. a pedestal of measuring for soil respiration, it comprises cylindrical PVC plastic barrel (1), it is characterized in that: offer more than one soil material exchange hole (2) in the region of burying of cylindrical PVC plastic barrel (1).
According to claim 1 for soil respiration measure pedestal, it is characterized in that: described cylindrical PVC plastic barrel (1) diameter be 20-22cm, highly be 14-17cm.
According to claim 1 for soil respiration measure pedestal, it is characterized in that: the arc length of soil material exchange hole (2) be 3-5cm, highly be 0.5-1cm.
4. the pedestal of measuring for soil respiration according to claim 1, is characterized in that: the quantity of soil material exchange hole (2) is four and is arranged symmetrically with based on center of circle tangent plane, and between two soil material exchange holes (2), vertical direction distance is 5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366262.5U CN204008635U (en) | 2014-07-04 | 2014-07-04 | A kind of pedestal of measuring for soil respiration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366262.5U CN204008635U (en) | 2014-07-04 | 2014-07-04 | A kind of pedestal of measuring for soil respiration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204008635U true CN204008635U (en) | 2014-12-10 |
Family
ID=52048615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420366262.5U Expired - Fee Related CN204008635U (en) | 2014-07-04 | 2014-07-04 | A kind of pedestal of measuring for soil respiration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204008635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120821A (en) * | 2017-12-20 | 2018-06-05 | 河南大学 | A kind of soil heterotrophic respiration loop device and its setting method |
-
2014
- 2014-07-04 CN CN201420366262.5U patent/CN204008635U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120821A (en) * | 2017-12-20 | 2018-06-05 | 河南大学 | A kind of soil heterotrophic respiration loop device and its setting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150704 |
|
| EXPY | Termination of patent right or utility model |