CN205785931U - A kind of gather rhizosphere different depth soil and the assay device of solution - Google Patents
A kind of gather rhizosphere different depth soil and the assay device of solution Download PDFInfo
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- CN205785931U CN205785931U CN201620447324.4U CN201620447324U CN205785931U CN 205785931 U CN205785931 U CN 205785931U CN 201620447324 U CN201620447324 U CN 201620447324U CN 205785931 U CN205785931 U CN 205785931U
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Abstract
The utility model discloses and a kind of gather rhizosphere different depth soil and the assay device of solution.Cylinder body bottom seals, and sidewall offers thief hole at a certain distance, and thief hole inner surface is tapped with fixing female thread；Extend the first body and the second body in probe tube fix connection and communicate；Being provided with nylon wire on first body cross section, on outer wall, sequentially coaxially nesting is fixed with nipple, and the first trocar sheath is rotatably connected on nipple outer wall by screw thread；Second trocar sheath is coaxially nested to be fixed on the interface portion outer wall of the first body and the second body.Six prism screws are rotatably connected on the outer wall of the second threaded side of body and are close to the second trocar sheath；Extend probe tube to be rotatably connected in thief hole by nipple, and the first body stretches into inner barrel.This utility model can convert offer technical support at Development of Rice different growing accurate acquisition rhizosphere micro-region different depth soil and solution example for probing into root heavy metal vertical migration in rice root micro-region soil and solution.
Description
Technical field
This utility model belongs to experimental provision field, is specifically related to a kind of gather rhizosphere different depth soil and the assay device of solution.
Background technology
Rhizosphere is micro-territory environment of root system of plant and soil close contact, is also nutrient and the crucial band of pollutant entrance families of plant simultaneously.The Rhizosphere of Rice environment is oozed the combined factors such as oxygen, root exudates, rhizosphere specific microorganism and is affected by root system so that rice root micro-territory environment physicochemical property and micro organism quantity and activity differ markedly from non-rhizospheric environment, and this phenomenon is referred to as " rhizosphere effect ".Long-term waterflooding environment causes paddy soil to present longitudinal oxidation-reduction potential gradient, the difference of different depth oxidation-reduction potential cause the pollutant such as heavy metal in soil and pore water chemical form there is some difference.After the pollutant such as heavy metal-polluted soil enter into rice root micro-territory environment, special rice root micro-territory environment not only can affect heavy metal form transformation in soil environment, also can affect heavy metal along soil pore water vertical migration and conversion.But not yet there is similar device to realize gathering different depth soil and the function of solution example at present.Therefore it is to probe into the Transport And Transformation process of rice root micro-territory heavy metal and rule needs that invention is a kind of gathers different depth soil and the assay device of solution and method badly.
Summary of the invention
The purpose of this utility model is to solve problems of the prior art, and provides a kind of and gather rhizosphere different depth soil and the assay device of solution.
This utility model can convert offer technical support at paddy growth different growing accurate acquisition rhizosphere micro-region different depth soil and solution example for probing into root heavy metal vertical migration in rice root micro-region soil and solution.These apparatus and method provide suitable paddy growth environment, under guaranteeing flooding condition, gather different depth soil and solution example accurately, quickly and efficiently.Concrete technical scheme is as follows:
Gather rhizosphere different depth soil and the assay device of solution, including cylinder, thief hole and extension probe tube；Described cylinder body bottom seals, and sidewall offers thief hole at a certain distance, and thief hole inner surface is tapped with fixing female thread；
Described extension probe tube includes that the first body, drainage screen, nipple, the first trocar sheath, the second trocar sheath, six prism screws and the second body, the first body and the second body are fixing and connects and communicate；Being provided with drainage screen on first body cross section, on outer wall, sequentially coaxially nesting is fixed with nipple, and the first trocar sheath is rotatably connected on nipple outer wall by screw thread and the external diameter of the first trocar sheath is more than thief hole internal diameter；Second trocar sheath is coaxially nested to be fixed on the interface portion outer wall of the first body and the second body, and is close to the first trocar sheath；The second described body is externally threaded near one end outer wall of the first body, and the other end is for being connected with peristaltic pump feed tube, and six prism screws are rotatably connected on the outer wall of the second threaded side of body and are close to the second trocar sheath；Extend probe tube to be rotatably connected in thief hole by nipple, and the first body stretches into inner barrel.This utility model device has detachability, repeatable utilization.
As preferably, between described extension probe tube and cylinder body outer wall, it is provided with elastic tape.
As preferably, described extension probe tube being additionally provided with fastening nut, fastening nut is rotatably connected on the second body by screw thread, and after screwing the second body (308) outlet to be positioned at fastening nut (309) outside.
As preferably, described cylinder body bottom is provided with base.
As preferably, described cylinder and the first body all use lucite.
As preferably, when described fastening nut is tightened on the second body, the second body exit is enclosed with waterproof sealing thin film.
As preferably, the described nylon wire that drainage screen aperture is 200 mesh.200 mesh nylon wires can avoid soil particle to enter extension probe tube, reduces blocking.
Soil of the present utility model and solution sampling assay device, have the advantages that；
1) soil and solution example can be obtained in specific region simultaneously, analyze heavy metal vertical migration transformation rule in soil and solution system；
2) little to rice root infringement in sampling process, repeatedly Non-destructive sampling can be accomplished, it is simple to investigate rice at whole growth periods heavy metal at rhizosphere micro-region vertical migration transformation rule；
3) planting plants and not planting plants are set and can investigate the impact of rhizospheric environment heavy metal vertical migration transformation rule.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of assay device gathering rhizosphere different depth soil and solution；
Fig. 2 is the structural representation extending probe tube in this utility model；
Fig. 3 be utility model extends probe tube and fastening nut assembling schematic diagram.
In figure: cylinder 1, thief hole 2, extension probe tube 3, base the 4, first body 301, drainage screen 302, nipple 303, elastic tape the 304, first trocar sheath the 305, second trocar sheath 306, six prism screw the 307, second body 308 and fastening nut 309.
Detailed description of the invention
With detailed description of the invention this utility model it is further elaborated below in conjunction with the accompanying drawings and illustrates.In this utility model, the technical characteristic of each embodiment is not on the premise of colliding with each other, and all can carry out respective combination.
Rhizosphere different depth soil and the assay device of solution is gathered as it is shown in figure 1, a kind of.In this device, agent structure includes cylinder 1, thief hole 2 and extends probe tube 3.Cylinder 1 and the first body 301 all use lucite to make, and prevent the research of metal material heavy metal from producing interference.
In the present embodiment, cylinder 1 internal diameter is 8 cm, is 5 mm at the bottom of thickness of pipe wall, and cylinder 1 is vertically positioned at base top, center overlaps with base, high 30 cm of cylinder, have a thief hole at distance base 5 cm, 15 cm and 25 cm respectively, thief hole is the circular port of a diameter of 2.5 cm hollowed out on cylinder, it is 2 cm that each thief hole inner surface is tapped with internal diameter, the fixing female thread of a length of 1 cm, and fixing female thread is for securing elongated probe tube.Extension probe tube is by a length of 4 cm, and internal diameter is the lucite composition of 1.5 cm
As in figure 2 it is shown, extend probe tube 3 to include the first body 301, drainage screen 302, nipple the 303, first trocar sheath the 305, second trocar sheath 306, six prism screw 307 and the second body 308, the first body 301 and the second fixing connection of body 308 also communicate；200 mesh drainage screen 302(nylon wires it are provided with) on first body 301 cross section, on outer wall, sequentially coaxially nesting is fixed with nipple 303, and the first trocar sheath 305 is rotatably connected on nipple 303 outer wall by screw thread and the external diameter of the first trocar sheath 305 is more than thief hole 2 internal diameter；The second coaxial nesting of trocar sheath 306 is fixed on the interface portion outer wall of the first body 301 and the second body 308, and is close to the first trocar sheath 305；The second described body 308 is externally threaded near one end outer wall of the first body 301, and the other end is for being connected with peristaltic pump feed tube, and six prism screws 307 are rotatably connected on the outer wall of the second threaded side of body 308 and are close to the second trocar sheath 306；Extend probe tube 3 to be rotatably connected in thief hole 2 by nipple 303, and the first body 301 stretches into cylinder 1 inside.
When extension probe tube 3 is installed, extend and be provided with elastic tape 304 between probe tube 3 and cylinder 1 outer wall.
Extend and be additionally provided with fastening nut 309 on probe tube 3.Under use state, second body 308 exit is preferably enclosed with waterproof sealing thin film and seals further, fastening nut 309 is rotatably connected on the second body 308 by screw thread, and the second body (308) outlet is positioned at that fastening nut (309) is outside makes diaphragm seal the second body export after screwing.
A kind of collection rhizosphere different depth soil utilizing said apparatus and the method for solution, step is as follows:
S1: will extend over probe tube 3 and be rotatably connected in thief hole 2, and fastening nut 309 is tightened on the second body 308.
A certain amount of soil that particle size range is 200-2000 μm being uniformly mixed with base manure is filled in cylinder by S2, pours water after filling, and after waterflooding, the height of soil is slightly above first thief hole 2 top；Being transplanted in the soil in cylinder by rice seedling, the holding Oryza sativa L. that periodically adds water is in waterflooding state, and upper soll layer overlying water is optimally maintained at about 5cm.During actual tests, multiple device can be used to test, the cylinder of rice cultivation is considered as rhizospheric environment simultaneously, is considered as the comparison of non-rhizosphere with the cylinder of non-rice cultivation.
S3: when not sampling, wraps up the second body 308 exit with waterproof sealing thin film, and fastening nut 309 is tightened on the second body 308, prevents water sample from flowing out；During sampling, after being back-outed by fastening nut 309, tear waterproof sealing thin film, connect peristaltic pump in the second body 308 exit by peristaltic pump feed tube；Utilize peristaltic pump that the second body 308 in thief hole 2 carries out the extraction of the soil liquid successively, be placed in preserving in container, i.e. obtain the soil liquid sample of respective depth；After soil liquid sample collecting is complete, will extend over whole back-out of probe tube 3 and depart from cylinder 1, utilize sampler to put in soil at thief hole 2, rotate that to dig out appropriate pedotheque to be analyzed to being stored in less than-20 DEG C in valve bag in the same horizontal line, i.e. obtain the pedotheque of respective depth.Such as, in the present embodiment, three thief holes represent the soil at upper layer of soil top layer, middle level distance topsoil 10 cm, at lower floor distance top layer 20 cm respectively.
After S4: soil and soil liquid sample take, will extend over probe tube 3 and again screw at thief hole 2, with waterproof sealing thin film, the second body 308 exit is wrapped up, and fastening nut 309 is tightened on the second body 308；Again in cylinder 1, add deionized water, keep Oryza sativa L. waterflooding state, do not affect rice growth.Treat to sample next time.
Embodiment described above is one of the present utility model preferably scheme, so itself and be not used to limit this utility model.About the those of ordinary skill of technical field, in the case of without departing from spirit and scope of the present utility model, it is also possible to make a variety of changes and modification.The technical scheme that the most all modes taking equivalent or equivalent transformation are obtained, all falls within protection domain of the present utility model.
Claims (7)
1. one kind gathers rhizosphere different depth soil and the assay device of solution, it is characterised in that includes cylinder (1), thief hole (2) and extends probe tube (3)；Described cylinder (1) sealed bottom, sidewall offers thief hole (2) at a certain distance, and thief hole (2) inner surface is tapped with fixing female thread；
Described extension probe tube (3) includes that the first body (301), drainage screen (302), nipple (303), the first trocar sheath (305), the second trocar sheath (306), six prism screws (307) and the second body (308), the first body (301) and the second body (308) are fixing and connects and communicate；Drainage screen (302) it is provided with on first body (301) cross section, on outer wall, sequentially coaxially nesting is fixed with nipple (303), and the first trocar sheath (305) is rotatably connected on nipple (303) outer wall by screw thread and the external diameter of the first trocar sheath (305) is more than thief hole (2) internal diameter；The coaxial nesting of second trocar sheath (306) is fixed on the interface portion outer wall of the first body (301) and the second body (308), and is close to the first trocar sheath (305)；Described the second body (308) is externally threaded near one end outer wall of the first body (301), the other end is for being connected with peristaltic pump feed tube, and six prism screws (307) are rotatably connected on the outer wall of the second body (308) threaded side and are close to the second trocar sheath (306)；Extend probe tube (3) to be rotatably connected in thief hole (2) by nipple (303), and the first body (301) stretches into cylinder (1) inside.
2. collection rhizosphere different depth soil as claimed in claim 1 and the assay device of solution, it is characterised in that be provided with elastic tape (304) between described extension probe tube (3) and cylinder (1) outer wall.
3. collection rhizosphere different depth soil as claimed in claim 1 and the assay device of solution, it is characterized in that, it is additionally provided with fastening nut (309) on described extension probe tube (3), fastening nut (309) is rotatably connected on the second body (308) by screw thread, and after screwing the second body (308) outlet to be positioned at fastening nut (309) outside.
4. collection rhizosphere different depth soil as claimed in claim 1 and the assay device of solution, it is characterised in that described cylinder (1) bottom is provided with base (4).
5. collection rhizosphere different depth soil as claimed in claim 1 and the assay device of solution, it is characterised in that described cylinder (1) and the first body (301) all use lucite.
6. collection rhizosphere different depth soil as claimed in claim 3 and the assay device of solution, it is characterised in that when described fastening nut (309) is tightened on the second body (308), the second body (308) exit is enclosed with waterproof sealing thin film.
7. collection rhizosphere different depth soil as claimed in claim 1 and the assay device of solution, it is characterised in that described drainage screen (302) aperture is 200 mesh nylon wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620447324.4U CN205785931U (en) | 2016-05-16 | 2016-05-16 | A kind of gather rhizosphere different depth soil and the assay device of solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620447324.4U CN205785931U (en) | 2016-05-16 | 2016-05-16 | A kind of gather rhizosphere different depth soil and the assay device of solution |
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| CN205785931U true CN205785931U (en) | 2016-12-07 |
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| CN201620447324.4U Expired - Fee Related CN205785931U (en) | 2016-05-16 | 2016-05-16 | A kind of gather rhizosphere different depth soil and the assay device of solution |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053147A (en) * | 2016-05-16 | 2016-10-26 | 浙江大学 | Test device and method for collecting soil and solution in difference depths of rhizosphere |
| CN108444776A (en) * | 2018-04-08 | 2018-08-24 | 湖北大学 | The sampler and its sampling method of soil column longitudinal direction soil layer gas |
| CN109238807A (en) * | 2018-11-14 | 2019-01-18 | 南京信息工程大学 | Soil incubation and high-resolution original position gas-liquid sampling apparatus and its test method |
| CN109406216A (en) * | 2018-12-29 | 2019-03-01 | 南昌工程学院 | A kind of soil liquid sampler and sampling method |
| CN114323755A (en) * | 2021-12-27 | 2022-04-12 | 生态环境部南京环境科学研究所 | Multifunctional sampling device for collecting soil and underground water samples |
-
2016
- 2016-05-16 CN CN201620447324.4U patent/CN205785931U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053147A (en) * | 2016-05-16 | 2016-10-26 | 浙江大学 | Test device and method for collecting soil and solution in difference depths of rhizosphere |
| CN106053147B (en) * | 2016-05-16 | 2019-01-29 | 浙江大学 | Acquire the experimental rig and method of rhizosphere different depth soil and solution |
| CN108444776A (en) * | 2018-04-08 | 2018-08-24 | 湖北大学 | The sampler and its sampling method of soil column longitudinal direction soil layer gas |
| CN109238807A (en) * | 2018-11-14 | 2019-01-18 | 南京信息工程大学 | Soil incubation and high-resolution original position gas-liquid sampling apparatus and its test method |
| CN109406216A (en) * | 2018-12-29 | 2019-03-01 | 南昌工程学院 | A kind of soil liquid sampler and sampling method |
| CN109406216B (en) * | 2018-12-29 | 2023-10-27 | 南昌工程学院 | Soil solution sampling device and sampling method |
| CN114323755A (en) * | 2021-12-27 | 2022-04-12 | 生态环境部南京环境科学研究所 | Multifunctional sampling device for collecting soil and underground water samples |
| CN114323755B (en) * | 2021-12-27 | 2022-06-24 | 生态环境部南京环境科学研究所 | Multifunctional sampling device for collecting soil and underground water samples |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170516 |