CN209264720U - Device for forest ecosystem soil in-situ nitrogen mineralization rate determination - Google Patents
Device for forest ecosystem soil in-situ nitrogen mineralization rate determination Download PDFInfo
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- CN209264720U CN209264720U CN201822162564.1U CN201822162564U CN209264720U CN 209264720 U CN209264720 U CN 209264720U CN 201822162564 U CN201822162564 U CN 201822162564U CN 209264720 U CN209264720 U CN 209264720U
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- main pipe
- cover
- earth pillar
- lower plug
- screw thread
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Abstract
The utility model relates to a kind of devices for forest ecosystem soil in-situ nitrogen mineralization rate determination, including upper blanking cover, main pipe and the lower plug cover that can successively dock from top to bottom, the lower end of main pipe is equipped with the divided edge structure that may pass through earth's surface, quartz sand layer, strainer and ion exchange resin layer filled with stacked distribution from bottom to top in upper blanking cover and lower plug cover.The ion exchange resin of upper end can prevent ammonium ion and nitrate ion in precipitation, or the input of the mineral nitrogen during soil water flowing, other external mineral nitrogens are avoided to enter in the earth pillar of culture, the ion exchange resin of lower end can adsorb the mineral nitrogen that leaching gets off in culture earth pillar；The quartz sand of upper end can prevent to cultivate the resin that the mineral nitrogen in earth pillar diffuses to earth pillar upper end, the quartz sand of lower end can prevent the mineral nitrogen outside earth pillar from diffusing in the resin of earth pillar lower end, actual mineral nitrogen quantity and mineral rate in the earth pillar so as to more accurately measure and calculate culture.
Description
Technical field
The utility model belongs to Soil Testing, more particularly to a kind of for forest ecosystem soil in-situ nitrogen mineralization
The device of rate determination.
Background technique
Currently, the calculating of soil nitrogen loss depends on the soil beaten and take specific level, extracted using KCL solution each
The nitrate nitrogen and ammonium nitrogen of layer soil, are compared, to nitrogen stream by the content to each layer nitrified nitrogen in soil and ammonium nitrogen
Situation is lost to be evaluated.This method is not only time-consuming and laborious, but also if sample measures not in time, nitrate nitrogen and ammonium nitrogen can be sent out
Life mutually converts, and is also easy to produce error；Sample is difficult to mix simultaneously, and when sampling and measuring and field actual conditions have certain deviation.Afterwards
Carry out researcher by repairing percolating filter by field, placement tray and connects liquid bottle in lysimeter and soil layer, ground is connected by liquid suction pipe
Sampling bottle, connect liquid bottle and vacuum pump etc. to obtain Leachate, interior constructs phase by filling earth pillar, application foundation data
Model is answered, nitrogen loss in farmland is simulated.These experimental designs there are common problem be not only invest it is larger and test at
This height；And column simulation and repair percolating filter and have certain destruction to original state soil structure, lysimeter upsets experimental plot soil layer, tests
Journey is complicated, and effusion is easy to will appear drain blockage during collecting, and effusion volume is difficult to calculate, and the pressure of vacuum pump is not
The problems such as easy to control, influences test process；The above test measurement is analog result, and apart from true value, there are also distances, largely
On limit nitrogen loss research deep development.
Utility model content
The purpose of this utility model is to provide a kind of measurement results to be accurately used for forest ecosystem soil in-situ nitrogen
The device of mineralization rate measurement, its technical solution is as follows:
For the device of forest ecosystem soil in-situ nitrogen mineralization rate determination, including what can successively be docked from top to bottom
Upper blanking cover, main pipe and lower plug cover, the lower end of main pipe are equipped with the divided edge structure that may pass through earth's surface, fill out in upper blanking cover and lower plug cover
Quartz sand layer, strainer and ion exchange resin layer filled with stacked distribution from bottom to top.The ion exchange resin of upper end can prevent
The input of mineral nitrogen during ammonium ion and nitrate ion or the soil water flow in precipitation avoids other external minerals
Nitrogen enters in the earth pillar of culture, and the ion exchange resin of lower end can adsorb the mineral nitrogen that leaching gets off in culture earth pillar；Upper end
Quartz sand the mineral nitrogen in culture earth pillar can be prevented to diffuse to the resin of earth pillar upper end, the quartz sand of lower end can prevent outside earth pillar
Mineral nitrogen diffuse in the resin of earth pillar lower end, can so as to make earth pillar Culture in situ in its natural state to the maximum extent
Actual mineral nitrogen quantity and mineral rate in the earth pillar that more accurately measurement and calculating are cultivated.
Further, upper blanking cover, main pipe and lower plug cover are pvc pipe, the upper port of upper blanking cover and the lower end of lower plug cover
Mouth respectively ties up the sealed piece for covering and being equipped with nylon wire or steel wire material.
Further, the both ends of main pipe are respectively arranged with external screw thread, the lower port and lower plug cover upper port point of upper blanking cover
It is not provided with external screw thread, upper blanking cover and lower plug cover and connects main pipe each by reducing sleeve, the both ends of reducing sleeve are respectively arranged with
Internal screw thread, the strainer are installed in the middle part of reducing sleeve and every being located between the internal screw thread of both ends, and the internal screw thread of reducing sleeve one end connects
It connects on the external screw thread of main pipe end, the internal screw thread of the other end connects upper blanking cover or lower plug cover.
Further, strainer is the steel wire or nylon wire of 100-150 mesh.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the embodiments of the present invention, for this
For the those of ordinary skill of field, without any creative labor, it can also be obtained according to these attached drawings other
Attached drawing；
Fig. 1 is the structural schematic diagram of device in embodiment 1；
Fig. 2 is the structural schematic diagram of device in embodiment 2.
Specific embodiment
In order to keep the technical purpose, technical scheme and beneficial effects of the utility model clearer, with reference to the accompanying drawing and
Specific embodiment is further illustrated the technical solution of the utility model.
Embodiment 1 is shown in the utility model referring to Fig. 1 for forest ecosystem soil in-situ nitrogen mineralization rate
The apparatus structure schematic diagram of measurement, is mainly process using PVC pipe.The device includes successively docking from top to bottom
Upper blanking cover 1, main pipe 2 and lower plug cover 3, main pipe 2 is equipped with the divided edge structure that may pass through earth's surface using straight sleeve and lower end, upper stifled
Quartz sand layer 4, strainer 5 and ion exchange resin layer 6 filled with stacked distribution from bottom to top in lid 1 and lower plug cover 3.Upper blanking cover
Upper port and lower plug cover lower port respectively tie up cover be equipped with nylon wire material sealed piece 7.
The device includes the pvc pipe (polishing length 0.5-1cm) of one end by polishing, i.e. main pipe 2, in order to will
It smoothly squeezes into collection original position soil in forest soil different soil, and (pvc pipe specification is diameter 5cm or so, and wall thickness 0.5cm is left
The right side, length about 10cm can adjust pvc pipe length according to the demand of the soil layer of mineralising in situ)；Two equipped with ion exchange resin and
The pvc pipe (pvc pipe specification is consistent with the above, length about 3cm) of quartz sand, i.e., upper blanking cover and lower plug cover, the pvc pipe are divided into two
The strainer 5 of layer, intermediate 100-150 mesh separates, and the anion-cation exchange resin mixture (amount of resin of certain mass is placed in one end
Can be adjusted according to the Culture in situ time), remaining space fills up quartz sand, the nylon wire or steel wire of the above-mentioned same size in both ends
Sealing is fixed by the fixed nylon wire of rubber band or in a manner of inlaying；After main pipe 2 squeezes into corresponding soil layer taking-up, by upper blanking cover
With lower plug cover with ion exchange resin end upwardly direction, it is connected with the pvc pipe equipped with soil with adhesive tape, then puts back to
Native soil layer carries out Culture in situ, and pvc pipe is split after a period of time taking-up, respectively soil and ion exchange resin in extraction and determination pipe
In nitrate nitrogen and ammonium nitrogen (be referred to as mineral nitrogen) content, the mineralising amount and mineralization rate of soil in quantitative analysis for a period of time.
Pvc pipe equipped with ion exchange resin and quartz sand, upper blanking cover 1 and lower plug cover 3, can be before field test indoors
It completes the production, it is easy to operate, for that can save in a large amount of duplicate researchs needed for the field test sites such as forest ecosystem
The operating time in field improves working efficiency；It may make precipitation and soil percolation water etc. in soil with the sealing of strainer 5 of certain pore size
Flowed freely in column, ventilatory effect is good, and strainer 5 it is more firm field be not easy rot damage etc.；Upper ends ion exchange
Resin can prevent the input of the mineral nitrogen in precipitation during the flowing of ammonium ion and nitrate ion or the soil water, avoid it
He enters in the earth pillar of culture external mineral nitrogen, and the ion exchange resin of lower end can adsorb the mine that leaching gets off in culture earth pillar
Matter nitrogen；The quartz sand of upper end can prevent the mineral nitrogen in culture earth pillar from diffusing to the resin of earth pillar upper end, and the quartz sand of lower end can
The mineral nitrogen outside earth pillar is prevented to diffuse in the resin of earth pillar lower end.This device makes earth pillar in its natural state to the maximum extent
Culture in situ more accurately can measure and calculate actual mineral nitrogen quantity and mineral rate in the earth pillar of culture；Pvc pipe and filter
Net 5 is reusable, reduces pollution, energy conservation and environmental protection.
Preferably, embodiment 2, referring to fig. 2, the both ends of main pipe 2 are respectively arranged with external screw thread, upper blanking cover 1 and lower plug cover 3
It include cylindric reducing sleeve 11, the both ends of reducing sleeve 11 are respectively arranged with internal screw thread, and the strainer 5 is installed in reducing sleeve
Middle part and every being located between the internal screw thread of both ends, the internal screw thread of reducing sleeve one end is connected on the external screw thread of main pipe end, another
The internal screw thread at end connects upper blanking cover or lower plug cover.The steel wire or nylon wire of 100-150 mesh are selected in the end of mesh end cap 12.Filter
The steel wire or nylon wire of the selection 100-150 mesh of net 5.Blanking cover 1 upper in this way and lower plug cover 3 can be realized on main pipe 2 and can be revolved
Turning disassembly, is operated in field trial more convenient, quartz sand and resin can directly be put into the device at both ends by people indoors,
Field operation only needs directly to carry out connection with main pipe 1；And pass through the connection of main pipe's screw thread, filtrate can be reduced and connected
The loss of mouth enhances the accuracy of nitrogen mineralization rate determination.
Other embodiments, the connection structure between upper and lower blanking cover and main pipe, which can also use, to be threadedly coupled, buckles company
It connects, other detachable connection methods such as flanged joint, or uses other disposable connection sides such as bonding, riveting, hot-melt adhesive paste
Formula.
It should be noted last that: the technical solution of the utility model that the above embodiments are only illustrative and not limiting is appointed
What to the utility model carry out equivalent replacement and do not depart from the spirit and scope of the utility model modification or part replace,
It should cover within the scope of the utility model claims protection.
Claims (4)
1. being used for the device of forest ecosystem soil in-situ nitrogen mineralization rate determination, which is characterized in that including can be from top to bottom
Upper blanking cover, main pipe and the lower plug cover successively docked, the lower end of main pipe are equipped with the divided edge structure that may pass through earth's surface, upper blanking cover and
Quartz sand layer, strainer and ion exchange resin layer filled with stacked distribution from bottom to top in lower plug cover.
2. the device according to claim 1 for forest ecosystem soil in-situ nitrogen mineralization rate determination, feature
It is, upper blanking cover, main pipe and lower plug cover are pvc pipe, and the upper port of upper blanking cover and the lower port of lower plug cover respectively tie up illiteracy
Sealed piece equipped with nylon wire or steel wire material.
3. the device according to claim 1 for forest ecosystem soil in-situ nitrogen mineralization rate determination, feature
It is, the both ends of main pipe are respectively arranged with external screw thread, and the lower port and lower plug cover upper port of upper blanking cover are respectively arranged with outer spiral shell
Line, upper blanking cover and lower plug cover connect main pipe each by reducing sleeve, and the both ends of reducing sleeve are respectively arranged with internal screw thread, the filter
Net is installed in the middle part of reducing sleeve and every being located between the internal screw thread of both ends, and the internal screw thread of reducing sleeve one end is connected to main pipe end
External screw thread on, the internal screw thread of the other end connects upper blanking cover or lower plug cover.
4. the device according to claim 1 for forest ecosystem soil in-situ nitrogen mineralization rate determination, feature
It is, strainer is the steel wire or nylon wire of 100-150 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822162564.1U CN209264720U (en) | 2018-12-23 | 2018-12-23 | Device for forest ecosystem soil in-situ nitrogen mineralization rate determination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822162564.1U CN209264720U (en) | 2018-12-23 | 2018-12-23 | Device for forest ecosystem soil in-situ nitrogen mineralization rate determination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209264720U true CN209264720U (en) | 2019-08-16 |
Family
ID=67560660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822162564.1U Expired - Fee Related CN209264720U (en) | 2018-12-23 | 2018-12-23 | Device for forest ecosystem soil in-situ nitrogen mineralization rate determination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209264720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406760A (en) * | 2018-12-23 | 2019-03-01 | 环境保护部南京环境科学研究所 | Device for forest ecosystem soil in-situ nitrogen mineralization rate determination |
-
2018
- 2018-12-23 CN CN201822162564.1U patent/CN209264720U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406760A (en) * | 2018-12-23 | 2019-03-01 | 环境保护部南京环境科学研究所 | Device for forest ecosystem soil in-situ nitrogen mineralization rate determination |
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| 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: 20190816 Termination date: 20201223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |