CN110208148A - For studying and testing the integrated system of moisture and salt regime rule in coastal region soil - Google Patents
For studying and testing the integrated system of moisture and salt regime rule in coastal region soil Download PDFInfo
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- CN110208148A CN110208148A CN201910620198.6A CN201910620198A CN110208148A CN 110208148 A CN110208148 A CN 110208148A CN 201910620198 A CN201910620198 A CN 201910620198A CN 110208148 A CN110208148 A CN 110208148A
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- 239000002689 soil Substances 0.000 title claims abstract description 109
- 150000003839 salts Chemical class 0.000 title claims abstract description 28
- 238000012360 testing method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 7
- 238000007667 floating Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000005527 soil sampling Methods 0.000 claims 1
- 239000003513 alkali Substances 0.000 abstract description 22
- 238000010276 construction Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 239000003673 groundwater Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 201000004384 Alopecia Diseases 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 208000024963 hair loss Diseases 0.000 description 1
- 230000003676 hair loss Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/04—Investigating osmotic effects
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Cultivation Of Plants (AREA)
Abstract
The present invention relates to a kind of for studying and testing the integrated system of moisture and salt regime rule in coastal region soil, pedestal is fixed on footing, outer tube and inner tube are fixed in pedestal, inner tube blow valve and outer tube blow valve are equipped on pedestal, permeable hole is offered on inner pipe, outer tube top plate is fixed in the upper end of outer tube, barometric pipe is fixed on outer tube top plate, the other end of the pipe is connected on gas port, soil sample hole is offered in the inner tube above outer tube top plate, fluid level controller is fixed on outer tube top plate, water inlet pipe is fixed on fluid box, liquid-feeding tube is fixed on outer tube top plate, peristaltic pump connects with liquid-feeding tube and water inlet pipe, air hole is equipped on the lamina tecti of fluid box.The present invention can be analyzed comprehensively in the case of varieties in saline-alkali areas original soil and soil moved in improve the original plantation, targetedly to take corresponding design scheme and management mode, the sponge urban construction choice of technology for being related to soil and plant to varieties in saline-alkali areas is of great significance with facility O&M.
Description
Technical field
The present invention relates to sponge city fields, and present invention relates particularly to one kind for studying and testing in coastal region soil
The integrated system of moisture and salt regime rule.
Background technique
In recent years, salinization of soil degree in China's constantly aggravates, especially in the coastal area of arid and semi-arid, height salt
The soil of alkalization has seriously affected agricultural production, while bringing extreme difficulty to landscape environment improvement.And sponge city is as new
The new concept and new model of epoch urban construction highlight the protection to the original ecosystem in city, the reparation of water environment, scape
The recovery for seeing ecology needs to use the various means such as vertical, plant, soil, to control rainwater pollution, alleviates urban waterlogging, repairs
Rehydration text state.In the case where the background of sponge urban construction is carried out energetically by country, how to realize and builds sponge city in varieties in saline-alkali areas,
As problem of the pendulum in face of many cities.The starting point for solving the problems, such as this is by alkaline land soil moisture, salinity transfer
And soil improvement research is organically combined with sponge urban construction.
Currently, being mostly focused on agriculture field for the research of soil water and salt transport rule, used is generally simple
Earth pillar connection salt water device, automation and integrated level be not high, is difficult more truly simulated groundwater and Soil Interface
Actual conditions.And lacks to saline-alkali soil and soil moved in improve the original (planting soil) and whether the Soil Under Conditions moisture and salt regime such as planting plants is advised
Rule difference comprehensively considers.It is not strong for the directiveness of the varieties in saline-alkali areas sponge urban construction choice of technology.
The problems such as varieties in saline-alkali areas construction sponge city is faced with level of ground water height, and the soil salinization is heavy, it is necessary first to understand
The migration situation of the level of ground water and underground water in region in the soil, the lower digging that could targetedly design sponge facility are deep
Degree, and for the common practices of saline and alkaline region soil moved in improve the original plantation, it is also desirable under the conditions of studying phreatic high, underground water may be right
The migration rule of water salt in planting soil is analyzed in the influence of planting soil.The water of underground water in the case where planting plants is explored simultaneously
Divide and the salinity variation of Transport and the influence to plant growth in the soil.Guidance saline and alkaline region sponge city is built
If the reasonable selection of technology, the design of facility and operational management are of great significance.
Summary of the invention
The purpose of the present invention is to solve current soil water and salt transport law study equipment therefors to underground water and soil
Simulation validity shortcoming, automation be not high with integrated level, and research method is comprehensive and systemic not strong, for varieties in saline-alkali areas sponge
The urban construction choice of technology, design and operational management lack the problems such as directive significance, provide a kind of for studying and testing shore
The integrated system of moisture and salt regime rule in extra large Soils In The Region.
It is described for studying and testing moisture and salt regime rule in coastal region soil according to technical solution provided by the invention
Integrated system, pedestal is fixed on footing, is fixed with outer tube and inner tube in the upper surface of pedestal, the diameter of pedestal is greater than outer
The diameter of pipe, inner tube are located in outer tube, and inner tube blow valve is equipped on the pedestal in corresponding in scope tube, in corresponding inner tube and outside
Pedestal between pipe is equipped with outer tube blow valve, offers permeable hole in the inner tube close to pedestal, solid in the upper end of outer tube
Surely there is outer tube top plate, outer tube top plate is sealed with the junction of inner tube and pedestal and inner tube, is fixed with gas on outer tube top plate
Balance pipe to be pressed, offers gas port in the inner tube above outer tube top plate, the other end of barometric pipe is connected on gas port,
Soil sample hole is offered in the inner tube above outer tube top plate, fluid level controller is fixed on outer tube top plate, in outer tube
Side is equipped with fluid box, is fixed with water inlet pipe on the lamina tecti of fluid box, is fixed with liquid-feeding tube, liquid-feeding tube on outer tube top plate
Water outlet protrude into outer tube, the water inlet end of water inlet pipe protrudes into fluid box, the water outlet of peristaltic pump and the water inlet end of liquid-feeding tube
Connect, the water inlet end of peristaltic pump connects with the water outlet of water inlet pipe, and the fluid level controller connects with peristaltic pump, in fluid box
Lamina tecti is equipped with air hole.
The diameter of the outer tube is 400 ~ 600mm, and the height of outer tube is 300 ~ 500mm.
The diameter of said inner tube is 150 ~ 250mm, and the height of inner tube is 1200 ~ 1800mm.
Elastic packing valve is fixed on the hole inner wall of the air hole.
The diameter of the pedestal is 450 ~ 650mm.
The fluid level controller is float-ball type, and the floating range of floating ball is 2 ~ 38cm.
Bottom end height of the permeable hole away from inner tube is 8 ~ 12mm, and the diameter of permeable hole is 7 ~ 9mm, and permeable hole opens up
Quantity is 8 ~ 12.
Distance of the center of the gas port away from outer tube top plate is 8 ~ 12mm, and air guide bore dia is 8 ~ 12mm.
The diameter in the soil sample hole is 8 ~ 12mm, and soil sample hole is laid along the circle diameter two o'clock of inner tube, two
It is one group, is vertical in form between two adjacent groups, be divided into 40 ~ 60mm, soil sample hole is on the whole ten along the circumference of inner tube
Font distribution form, most next group of distance of the sampling hole away from outer tube top plate is 40 ~ 60mm, and soil sample hole is arranged 18 ~ 22 groups altogether.
The invention has the following advantages that
1, strong to the validity of underground water and Simulated Soil, level of integrated system and high degree of automation.It is of the present invention concentric
With bottom cylinder, inner prop is earth pillar, and column jacket is groundwater simulation column, and the two bottom passed through water aperture and communicates, more truly mould
The actual conditions of underground water and Soil Interface are intended.Pass through the fluid level controller being set on column jacket, linkage control fluctuating liquid level
With pump liquid system start and stop, realize the automatic control of level of ground water, and level of ground water can sets itself, high degree of automation, spirit
It is active strong.Meanwhile it fully considering interfacial pressure control, soil sample test, level of ground water control and having avoided Influence of Evaporation etc.
Factor, system integration degree are high.
2, in the case of varieties in saline-alkali areas original soil and soil moved in improve the original plantation can be analyzed comprehensively, the vertical water salt Transport of soil, to have
Corresponding design scheme and management mode are pointedly taken, the sponge city for being related to soil and plant to varieties in saline-alkali areas is built
If the choice of technology and facility O&M have great importance.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the top perspective view of air hole in the present invention.
Fig. 3 is the structural schematic diagram that saline-alkali soil has only been loaded in inner tube.
Fig. 4 is the structural schematic diagram for having loaded saline-alkali soil in inner tube and having planted plant.
Fig. 5 is the structural schematic diagram that planting soil has only been loaded in inner tube.
Fig. 6 is the structural schematic diagram for having loaded planting soil in inner tube and having planted plant.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
The present invention is used to study and test the integrated system of moisture and salt regime rule in coastal region soil, fixed on footing
There is pedestal 13, height of the pedestal 13 apart from ground is 150mm or so, it is fixed with outer tube 1 and inner tube 2 in the upper surface of pedestal 13,
Outer tube 1 is groundwater simulation pipe, and inner tube 2 is soil pipe, and the diameter of pedestal is greater than the diameter of outer tube 1, and inner tube 2 is located in outer tube 1,
Pedestal 13 in corresponding 2 range of inner tube is equipped with inner tube blow valve 11, sets on the pedestal 13 between corresponding inner tube 2 and outer tube 1
There is outer tube blow valve 10, offers permeable hole 8 in the inner tube 2 close to pedestal 13, permeable hole 8 communicates outer tube 1 with inner tube 2,
And prevent soil from entering outer tube 1 through permeable hole 8 by permeable geotextiles, it is fixed with outer tube top plate 14 in the upper end of outer tube 1, outside
Tube top plate 14 is sealed with inner tube 2 and pedestal 13 and the junction of inner tube 2, is fixed with barometric pipe on outer tube top plate 14
5, gas port 15 is offered in the inner tube 2 above outer tube top plate 14, the other end of barometric pipe 5 is connected to gas port 15
On, guarantee that outer tube 1 is ventilative, can more accurately simulate and be lauched Soil Interface contact situation, the inner tube 2 above outer tube top plate 14
On offer soil sample hole 9, be fixed with fluid level controller 3 on outer tube top plate 14, the side of outer tube 1 be equipped with fluid box 7,
It is fixed with water inlet pipe 16 on the lamina tecti of fluid box 7, liquid-feeding tube 4, the water outlet of liquid-feeding tube 4 are fixed on outer tube top plate 14
It protrudes into outer tube 1, the water inlet end of water inlet pipe 16 protrudes into fluid box 7, the water outlet of peristaltic pump 6 and the water inlet end phase of liquid-feeding tube 4
It connects, the water inlet end of peristaltic pump 6 connects with the water outlet of water inlet pipe 16, and the fluid level controller 3 connects with peristaltic pump 6, in liquid
The lamina tecti of case 7 is equipped with air hole 12, and the fluid level controller 3 connects 6 circuit of peristaltic pump, and liquid-feeding tube 4 connects 6 water of peristaltic pump
Road, fluid level controller 3 answer fluctuating liquid level by ballottement, control 6 start and stop of peristaltic pump.
The diameter of the outer tube 1 is 400 ~ 600mm, and the height of outer tube 1 is 300 ~ 500mm.
The diameter of said inner tube 2 is 150 ~ 250mm, and the height of inner tube 2 is 1200 ~ 1800mm.
It is fixed with elastic packing valve on the hole inner wall of the air hole 12, can prevent the salting liquid in fluid box 7 from steaming
Hair loss.
The diameter of the pedestal 13 is 450 ~ 650mm.
The fluid level controller 3 is float-ball type, and the floating range of floating ball is 2 ~ 38cm, therefore level of ground water setting range is
2~38cm.Fluid level controller 3 control peristaltic pump 6 start and stop, peristaltic pump 6 use 10mm silica gel water inlet pipe, silica gel water inlet pipe into
Water end (W.E.) connects the 10mm liquid outlet on fluid box 7, and the water outlet of peristaltic pump 6 connects liquid-feeding tube 4.
The bottom level of the permeable hole 8 away from inner tube 2 is 8 ~ 12mm, and the diameter of permeable hole 8 is 7 ~ 9mm, and permeable hole 8 is opened
If quantity is 8 ~ 12.
The center of the gas port 15 is 8 ~ 12mm away from the distance of outer tube top plate 14, and 15 diameter of gas port is 8 ~ 12mm.
The diameter in the soil sample hole 9 is 8 ~ 12mm, and soil sample hole 9 is laid along the circle diameter two o'clock of inner tube 2, two
A is one group, is vertical in form between two adjacent groups, is divided into 40 ~ 60mm, soil sample hole 9 is on the whole along the circumference of inner tube 2
In crossing distribution form, most next group of distance of the sampling hole 9 away from outer tube top plate 14 is 40 ~ 60mm, and soil sample hole 9 is arranged altogether
18 ~ 22 groups.
4 sets of systems of the invention are used altogether when studying and testing moisture and salt regime rule in coastal region soil, in inner tube 2
In four groups of saline-alkali soil 100, saline-alkali soil serike, planting soil 200, planting soil serike check experiments are respectively set, from interior
2 different height sampling hole 9 of pipe takes the variation of soil comparative analysis each control group soil moisture and salinity.Soil grain in control group
Diameter, compacting degree will guarantee that unanimously planting depth is 100mm, and the plant height and quantity of plant want identical.The measurement of soil moisture
Method is gravimetric method, and the measuring method of soil salt is made aqueous solution for quantitative soil air-dry sample and sufficiently soaks molten measurement conductivity
Method.
By new Tianjin Ecological City Area region soil moisture and salt regime law study in strand and test for, using 4 sets this be
Saline-alkali soil 100(ecological city original soil is respectively set in the inner tube 2 of system), saline-alkali soil plantation iris, planting soil 200(planting technique
Soil), planting soil plant four groups of check experiments of iris, initial soil partial size is 0.01 ~ 0.05mm, and earth pillar loads mode of operation one
It causes, the initial conductivity of saline-alkali soil 100 is 0.33mS/cm, and the initial conductivity of planting soil 200 is 0.04mS/cm.Iris plant
Depth is 100mm, and initial plant height is 200mm, and every group of quantity is 5 plants.Simulate the brine strength of local ground watering preparation
For 15000mg/L, two phase sets levels of ground water are respectively 200mm and 350mm(away from pedestal 13).
It was tested by 3 months, saline-alkali soil 100 and planting soil 200 show closer from level of ground water, and moisture content is higher
Trend；200 moisture content of planting soil is fast compared with the 100 moisture content rate of climb of saline-alkali soil, and moisture content is higher；Planting soil 200 is away from underground
It is 20d that moisture content, which reaches stable time, at water level 800mm, and saline-alkali soil 100 is then 30d.Saline-alkali soil 100 is got over from level of ground water
Closely, the conductivity rate of climb is faster, and the conductivity of (away from level of ground water 350-700mm) is high in the middle part of earth pillar, and both ends are low；Planting soil
200 is faster away from the nearlyr conductivity rate of climb of level of ground water, and conductivity is higher；Planting soil 200 is away from electric at level of ground water 800mm
It is 40d that conductance, which reaches stable time, and saline-alkali soil 100 is then 75d.Apart from level of ground water same distance, pair of iris is planted
Rise compared with no plant group soil moisture content and conductivity fastly, especially to the soil water-containing away from level of ground water 700-800mm according to group
Rate and conductivity are affected, and influence of the iris of 200 this group of planting soil to soil moisture content and conductivity is greater than salt
Influence of the iris of 100 this group of alkaline earth to soil moisture content and conductivity.Increase level of ground water, soil moisture content and conductivity
Stabilized zone accordingly moves up, and in general, away from level of ground water 850mm or more, each control group soil moisture content and conductivity become
Change little.During test, system run all right, and by the research of different control groups, show saline-alkali soil and planting soil
There are larger differences for moisture and salt regime rule, while plant also has a certain impact to soil moisture and salinity transfer, verifies
The soil layer height that the local ground watering influences, new Tianjin ecological city or even similar coastal region sponge urban construction technology in
The directive significance of selection, parameter designing and operation management is significant.
Claims (9)
1. it is a kind of for studying and testing the integrated system of moisture and salt regime rule in coastal region soil, it is characterized in that: in footing
On be fixed with pedestal (13), be fixed with outer tube (1) and inner tube (2) in the upper surface of pedestal (13), the diameter of pedestal is greater than outer tube
(1) diameter, inner tube (2) are located in outer tube (1), are equipped with inner tube blow valve on the pedestal (13) in corresponding inner tube (2) range
(11), outer tube blow valve (10) are equipped on the pedestal (13) between corresponding inner tube (2) and outer tube (1), close to pedestal (13)
Inner tube (2) on offer permeable hole (8), be fixed with outer tube top plate (14) in the upper end of outer tube (1), outer tube top plate (14) with
Inner tube (2) and pedestal (13) and the junction of inner tube (2) seal, and are fixed with barometric pipe on outer tube top plate (14)
(5), it is offered gas port (15) in the inner tube (2) above outer tube top plate (14), the other end of barometric pipe (5) is connected to
On gas port (15), soil sample hole (9) are offered in the inner tube (2) above outer tube top plate (14), in outer tube top plate (14)
On be fixed with fluid level controller (3), be equipped with fluid box (7) in the side of outer tube (1), it is fixed on the lamina tecti of fluid box (7)
There are water inlet pipe (16), is fixed with liquid-feeding tube (4) on outer tube top plate (14), the water outlet of liquid-feeding tube (4) is protruded into outer tube (1),
The water inlet end of water inlet pipe (16) protrudes into fluid box (7), and the water outlet of peristaltic pump (6) connects with the water inlet end of liquid-feeding tube (4), compacted
The water inlet end of dynamic pump (6) connects with the water outlet of water inlet pipe (16), and the fluid level controller (3) connects with peristaltic pump (6), in liquid
The lamina tecti of body case (7) is equipped with air hole (12).
2. it is as described in claim 1 for studying and testing the integrated system of moisture and salt regime rule in coastal region soil,
Be characterized in: the diameter of the outer tube (1) is 400 ~ 600mm, and the height of outer tube (1) is 300 ~ 500mm.
3. it is as described in claim 1 for studying and testing the integrated system of moisture and salt regime rule in coastal region soil,
Be characterized in: the diameter of said inner tube (2) is 150 ~ 250mm, and the height of inner tube (2) is 1200 ~ 1800mm.
4. it is as described in claim 1 for studying and testing the integrated system of moisture and salt regime rule in coastal region soil,
It is characterized in: is fixed with elastic packing valve on the hole inner wall of the air hole (12).
5. it is as described in claim 1 for studying and testing the integrated system of moisture and salt regime rule in coastal region soil,
Be characterized in: the diameter of the pedestal (13) is 450 ~ 650mm.
6. it is as described in claim 1 for studying and testing the integrated system of moisture and salt regime rule in coastal region soil,
Be characterized in: the fluid level controller (3) is float-ball type, and the floating range of floating ball is 2 ~ 38cm.
7. it is as described in claim 1 for studying and testing the integrated system of moisture and salt regime rule in coastal region soil,
Be characterized in: the bottom end height of the permeable hole (8) away from inner tube (2) is 8 ~ 12mm, and the diameter of permeable hole (8) is 7 ~ 9mm, permeable
The quantity that opens up in hole (8) is 8 ~ 12.
8. it is as described in claim 1 for studying and testing the integrated system of moisture and salt regime rule in coastal region soil,
Be characterized in: the center of the gas port (15) away from the distance of outer tube top plate (14) be 8 ~ 12mm, gas port (15) diameter be 8 ~
12mm。
9. it is as described in claim 1 for studying and testing the integrated system of moisture and salt regime rule in coastal region soil,
Be characterized in: the diameter of the soil sample hole (9) is 8 ~ 12mm, the circle diameter two o'clock cloth of soil sample hole (9) along inner tube (2)
If two are one group, it is vertical in form between two adjacent groups, is divided into 40 ~ 60mm, soil sample hole (9) are on the whole along inner tube
(2) circumference is in crossing distribution form, and most next group of distance of the sampling hole (9) away from outer tube top plate (14) is 40 ~ 60mm, soil
Sampling hole (9) is arranged 18 ~ 22 groups altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910620198.6A CN110208148A (en) | 2019-07-10 | 2019-07-10 | For studying and testing the integrated system of moisture and salt regime rule in coastal region soil |
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| CN201910620198.6A CN110208148A (en) | 2019-07-10 | 2019-07-10 | For studying and testing the integrated system of moisture and salt regime rule in coastal region soil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141802A (en) * | 2020-12-04 | 2021-07-23 | 山东大学 | Saline-alkali soil water and salt migration simulation device and saline-alkali soil salt suppression method |
| CN114838754A (en) * | 2022-03-25 | 2022-08-02 | 河海大学 | Monitoring device and method for coastal wetland hydrothermal salt coupling process |
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