CN114982516A - Saline and alkaline land planting technique system - Google Patents
Saline and alkaline land planting technique system Download PDFInfo
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- CN114982516A CN114982516A CN202210688746.0A CN202210688746A CN114982516A CN 114982516 A CN114982516 A CN 114982516A CN 202210688746 A CN202210688746 A CN 202210688746A CN 114982516 A CN114982516 A CN 114982516A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/40—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure
- A01G24/44—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure in block, mat or sheet form
- A01G24/46—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure in block, mat or sheet form multi-layered
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Abstract
The invention belongs to the technical field of saline-alkali soil treatment, and particularly relates to a saline-alkali soil greening planting system; the salt removal and storage combined planting device comprises a planting unit and a salt removal unit, wherein the planting unit comprises a salt-alkali layer, an isolation layer, a buffer layer, a water storage layer and a planting layer; the salt discharging unit comprises a first well, a second well and a communicating pipe; when water enters the first well, no water exists in the second well, and the communicating vessel principle is adopted; therefore, fresh water can enter the communicating pipe, enter the branch and then enter the second well; because the branch is provided with the penetration hole; therefore, the fresh water in the communicating pipe can dilute the saline-alkali in the saline-alkali layer through the permeation holes; and the saline and alkaline in the saline and alkaline layer also can get into communicating pipe through the infiltration hole, later dashes to No. two wells through the fresh water that flows through communicating pipe, takes out the transportation to handling the factory centralized processing through a pumping plant saline and alkaline water in with No. two wells afterwards.
Description
Technical Field
The invention belongs to the technical field of saline-alkali soil treatment, and particularly relates to a saline-alkali soil greening planting system.
Background
Saline-alkali soil is a soil type with accumulated salts, and the salts contained in the soil affect the normal growth of plants; the coastal saline-alkali soil is soaked by seawater for a long time, and neutral salts such as sodium chloride, sodium sulfate and the like in the soil are continuously deposited, so that the internal structure of the soil is viscous, the permeability is poor, the activity of microorganisms in the soil is reduced, the nutrient is slowly released, the nutrient in the soil is reduced, the plant growth is not facilitated, and the soil is desertified.
In the prior art, the treatment of saline-alkali soil is mainly divided into physical improvement, biological improvement and chemical improvement, wherein the physical improvement is mainly based on several key management such as irrigation, drainage, silt discharge, rice planting and seepage prevention, the soil property is improved by operating in the aspects of land leveling, improvement cultivation, rotation, intercropping, interplanting and the like, but irrigation wastes a large amount of water resources, and excessive water easily causes the problem of rot of plant root systems.
In view of this, the invention provides a saline-alkali soil greening planting system to solve the technical problems.
Disclosure of Invention
In order to make up the defects of the prior art and solve the problems that a large amount of water resources are needed in the physical improvement of saline-alkali soil, and the saline-alkali soil has residues and is easy to return salt, the invention provides a saline-alkali soil greening planting system.
The technical scheme adopted by the invention for solving the technical problems is as follows: a saline-alkali soil greening planting system comprises a planting unit and a salt removing unit;
the planting unit comprises:
the saline-alkali layer is saline-alkali soil;
the isolating layer is positioned above the salt-alkali layer and is used for reducing upward salt return of the salt-alkali layer;
the buffer layer is positioned above the isolation layer and used for neutralizing the saline and alkaline which is permeated reversely;
the water storage layer is positioned above the buffer layer and is used for collecting water;
the planting layer is positioned above the water storage layer and used for planting plants;
the salt elimination unit comprises:
the first well extends into the saline-alkali layer, and the top of the first well is provided with a water inlet;
the second well extends into the saline-alkali layer and is positioned on the opposite surface of the first well, and the bottom of the second well is provided with a first water pumping device;
communicating pipe, communicating pipe links to each other well and No. two wells, just communicating pipe is located saline and alkaline layer, communicating pipe is equipped with a plurality of branches, and every a plurality of infiltration holes have all been seted up on the branch.
When the device works, the planting unit sequentially comprises a salt-alkali layer, an isolation layer, a buffer layer, a water storage layer and a planting layer from bottom to top; the salt-alkali layer is saline-alkali soil in nature and contains more saline and alkali, and the isolation layer is composed of sandstone and can effectively prevent the saline and alkali from reversely permeating upwards by artificial pavement; the buffer layer is acid soil, is artificial soil dressing, and is added with humic acid fertilizer to increase the acidity of the soil; the water content in the water storage layer is high, so that the artificial pavement is realized, and living conditions can be effectively provided for plants; plants are planted in the planting layer, and the soil of the planting layer is the artificial soil without saline-alkali soil; in addition, fresh water is injected into the first well through the water inlet, the first well extends to the saline-alkali layer, the bottom of the first well is connected with a communicating pipe, the communicating pipe is arranged in the saline-alkali layer, and when the first well is filled with water, no water exists in the second well due to the communicating pipe principle; therefore, fresh water can enter the communicating pipe, enter the branch and then enter the second well; because the branch is provided with the penetration hole; therefore, the fresh water in the communicating pipe can dilute the saline-alkali in the saline-alkali layer through the permeation holes; the saline-alkali in the saline-alkali layer can also enter the communicating pipe through the permeation hole and then flush the fresh water flowing through the communicating pipe to the second well, the fresh water flows in the communicating pipe, the concentration of saline-alkali solution formed by the saline-alkali in the soil outside the communicating pipe when meeting the water in the soil is higher, the high-concentration saline-alkali solution outside the communicating pipe permeates the fresh water in the communicating pipe, and then the saline-alkali is flushed into the second well; saline and alkaline water is accumulated in the second well, and then the saline and alkaline water in the second well is pumped out through the first water pumping device and is conveyed to a treatment plant for centralized treatment; the first pumping device can work all the time, so that fresh water can flow into the second well from the communicating pipe all the time along with the fact that the water inlet of the first well is filled with water all the time.
Preferably, the depth of the second well is greater than that of the first well, when water enters the first well, the water in the first well can flow to the second well through the communicating pipe until the water surfaces of the first well and the second well are equal, the depth of the second well is greater than that of the first well, and the water in the first well cannot flow into the second well because the water surfaces of the first well and the second well are equal, so that the water in the first well can flow into the second well more fully; therefore, the flowing time of the fresh water in the communicating pipe is increased, and the saline-alkali removing effect is improved.
Preferably, the communicating pipe is obliquely arranged, one end of the communicating pipe connected with the first well is higher than one end of the communicating pipe connected with the second well, the flowing speed of fresh water flowing into the second well from the first well through the communicating pipe is increased, and the saline-alkali scouring effect of water flow in the communicating pipe is increased; so that the saline alkali in the saline alkali layer can be better removed.
Preferably, the permeation short pipe is fixedly connected to the permeation hole on the communicating pipe, and the permeation short pipe is fixedly connected to the permeation hole on the communicating pipe, so that the saline and alkali can be guided by the permeation short pipe under the action of the permeation short pipe and can be more accurately permeated into the communicating pipe; the penetration short pipe also increases the penetration range, so that saline and alkali near the communicating pipe can penetrate into the communicating pipe through the penetration short pipe; and the water in the communicating pipe can also flow to the position farther away from the communicating pipe; the effect of removing salt and alkali is increased.
Preferably, the diameter of the permeation short pipe is gradually increased in the direction away from the communicating pipe.
When the device works, the diameter of the permeation short pipe is gradually increased towards the direction far away from the communicating pipe, the permeation short pipe is in a trumpet shape due to the arrangement, and the port of the permeation short pipe far away from the communicating pipe is larger than the connecting part of the permeation short pipe and the communicating pipe; the arrangement increases the penetration range, and compared with the arrangement that the diameter of the penetration short pipe is always equal to the diameter of the penetration hole, the arrangement can ensure that more saline alkali enters the communicating pipe through the penetration short pipe; the effect of removing salt and alkali is increased.
Preferably, the end part of the permeation short pipe, which is far away from the communicating pipe, is fixedly provided with the permeable membrane, and the permeable membrane can be geotextile, so that the salt and alkali removal effect of the communicating pipe can not be influenced under the condition that soil is prevented from entering the permeation short pipe; effectively prevent the blockage of the communicating pipe and enable the function of the communicating pipe to be played.
Preferably, flow valves are fixedly arranged at two ends of the communicating pipe, the flow valves are fixedly arranged at two ends of the communicating pipe, static pressure input type liquid level transmitters are arranged in the first well and the second well, the flow valves can control the flow and the plugging of water flow, when the water flow is not needed, the closing of the flow valves can be remotely controlled through a circuit,
preferably, all be provided with static pressure in well and No. two and throw in formula level transmitter, static pressure is thrown in formula level transmitter and can is measured the liquid level of well and No. two wells, when the liquid level of well and No. two wells is the same, close the flow valve, this setting can prevent that well and No. two well liquid level height are the same, water in well is not flowing to No. two wells, prevent that saline and alkaline in No. two wells from backflowing to well this moment, cause the pollution to the water in well, influence next use.
Preferably, the bottom of the first well is provided with a second water pumping device, the second water pumping device is used for irrigating the planting layer, the bottom of the first well is provided with the second water pumping device, the second water pumping device is used for irrigating the planting layer, when the weather is dry, the plants need to be irrigated, and if water exists in the first well, the plants can be irrigated through the second water pumping device; the water is utilized in multiple ways; the arrangement can enable water to flow downwards from top to bottom, so as to drive saline and alkali to flow downwards, and partial saline and alkali further flow into the communicating pipe through the short permeating pipe and further enter the second well; is favorable for preventing saline alkali from affecting the upper soil.
Preferably, the soil surface of the planting layer inclines, the soil surface of the planting layer close to the first well is higher than the soil surface of the planting layer close to the second well, when the second water pumping device pumps water to the soil surface, a ditch is arranged on the ground and matched with the soil surface to incline, the ditch can lead the water to the second well, and when the salt and alkali layer returns salt upwards seriously; according to the theory that salt goes with water, the device can flush the salt and the alkali on the surface of the planting layer to a second well; effectively removing salt and alkali on the surface of the planting layer; and the top of No. two wells is equipped with the filter screen, can prevent that earth from getting into No. two wells.
The invention has the following beneficial effects:
1. according to the saline-alkali soil greening planting system, when water enters a first well, no water exists in a second well, and due to the principle of a communicating vessel, fresh water can enter a communicating pipe, enter a branch and then enter the second well, and a penetration hole is formed in the branch; the saline and alkaline in the saline and alkaline layer can be diluted through the infiltration hole to the fresh water in the communicating pipe, and saline and alkaline in the saline and alkaline layer also can get into communicating pipe through the infiltration hole, later dashes to No. two wells through the fresh water that flows through communicating pipe, takes out the transportation to handling factory centralized processing through a pumping device with the saline and alkaline water in No. two wells afterwards.
2. According to the saline-alkali soil greening planting system, the depth of the second well is larger than that of the first well, when the first well is filled with water, the water in the first well can flow to the second well through the communicating pipe until the water surfaces of the first well and the second well are equal due to the communicating vessel principle, the depth of the second well is larger than that of the first well, and the water in the first well can not flow into the second well because the water surfaces of the first well and the second well are equal, so that the water in the first well can more fully flow into the second well, the flowing time of fresh water in the communicating pipe is prolonged, and the saline-alkali removal effect is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a cross-sectional view of the present invention;
fig. 2 is a partially enlarged view at a of fig. 1;
FIG. 3 is a perspective view of a communication tube of the present invention;
in the figure: planting unit 1, saline-alkali layer 11, isolation layer 12, buffer layer 13, aquifer 14, planting layer 15, salt discharging unit 2, well 21, water inlet 211, pumping device 212, well 22, pumping device 221, communicating pipe 23, branch 231, permeation hole 232, permeation short pipe 233, permeation film 234, flow valve 235 and static pressure input type liquid level transmitter 3.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The first embodiment is as follows:
as shown in fig. 1 to fig. 3, the saline-alkali soil greening planting system of the invention comprises a planting unit 1 and a salt removing unit 2;
the planting unit 1 includes:
the saline-alkali soil layer 11 is a saline-alkali soil layer 11;
an isolation layer 12, wherein the isolation layer 12 is positioned above the salt-alkali layer 11, and the isolation layer 12 is used for reducing upward salt return of the salt-alkali layer 11;
a buffer layer 13, wherein the buffer layer 13 is positioned above the isolation layer 12, and the buffer layer 13 is used for neutralizing the saline alkali on the reverse osmosis;
an aquifer 14, the aquifer 14 being located above the buffer layer 13, the aquifer 14 being for collecting water;
a planting layer 15, wherein the planting layer 15 is positioned above the aquifer 14, and the planting layer 15 is used for planting plants;
the salt elimination unit 2 comprises:
the first well 21 extends into the saline alkali layer 11, and the top of the first well 21 is provided with a water inlet 211;
the second well 22 extends into the saline-alkali layer 11, and a first water pumping device 221 is arranged at the bottom of the second well 22;
the communicating pipe 23 connects the first well 21 with the second well 22, the communicating pipe 23 is located in the saline-alkali layer 11, the communicating pipe 23 is provided with a plurality of branches 231, and each branch 231 is provided with a plurality of permeation holes 232.
In this embodiment, the planting unit 1 comprises a saline-alkali layer 11, an isolation layer 12, a buffer layer 13, a water storage layer 14 and a planting layer 15 in sequence from bottom to top; the saline-alkali layer 11 is saline-alkali soil in nature and contains more saline and alkali, and the isolation layer 12 is composed of sandstone and is laid manually, so that the saline-alkali upward reverse osmosis can be effectively prevented; the buffer layer 13 is acid soil, which is artificial soil dressing, and humic acid fertilizer is applied to increase the acidity of the soil; the water in the water storage layer 14 is high in moisture content, and the water storage layer is manually arranged and can effectively provide survival conditions for plants; plants are planted in the planting layer 15, and the soil of the planting layer 15 is the artificial soil without saline-alkali soil; the normal planting of crops can be realized through the cooperation of the buffer layer 13, the water storage layer 14 and the planting layer 15 before the saline-alkali layer 11 is not completely treated successfully, and the desert condition of the planted field can not occur;
in the process of planting crops, fresh water is firstly injected into a first well 21 through a water inlet 211, the first well 21 extends to a saline alkali layer 11, the bottom of the first well 21 is connected with a communicating pipe 23, the communicating pipe 23 is arranged in the saline alkali layer 11, when the first well 21 is filled with water, no water exists in a second well 22, due to the principle of a communicating device, the communicating pipe 23 is obliquely arranged, one end, connected with the first well 21, of the communicating pipe 23 is higher than one end, connected with the second well 22, as shown in figure 3, the fresh water can enter the communicating pipe 23 and enter a branch 231 and then enter the second well 22, due to the permeation hole 232 arranged on the branch 231, the fresh water in the communicating pipe 23 can dilute saline alkali in the saline alkali layer 11 through the permeation hole 232, and the saline alkali in the saline alkali layer 11 can flow back into the communicating pipe 23 along with water flow through the permeation hole 232, and then the fresh water flowing through the communicating pipe 23 is flushed to the second well 22, fresh water flows in the communicating pipe 23, the saline-alkali soil outside the communicating pipe 23 meets the water of the soil to form a saline-alkali solution with larger concentration, the high-concentration saline-alkali solution outside the communicating pipe 23 permeates into the fresh water in the communicating pipe 23, and then the saline-alkali is flushed into the second well 22 to be collected;
along with the gradual increase of the saline-alkali water accumulated in the second well 22, as shown in fig. 1, a person can operate the first water pumping device 221 to operate, then the first water pumping device 221 pumps out the saline-alkali water in the second well 22 and transports the saline-alkali water to a treatment plant for centralized treatment, and after the treatment plant finishes the purification of the saline-alkali water, the water can be discharged into rivers and lakes again, so that the problem that the water resource is easy to evaporate and run off due to the fact that an irrigation mode is directly adopted is solved; meanwhile, after the salt and alkali in the salt and alkali layer 11 flows into the second well 22 along with the fresh water in the connecting pipe 23, the content of the salt and alkali in the salt and alkali layer 11 can be reduced, and the condition that salt is returned to soil is reduced.
Example two:
as shown in fig. 1-2, the depth of the second well 22 is greater than that of the first well 21, and a penetration stub 233 is fixedly connected to the penetration hole 232 of the communicating pipe 23.
In this embodiment, when the water in the first well 21 flows to the second well 22 through the communication pipe 23 until the water surfaces of the first well 21 and the second well 22 are equal to each other, because the depth of the second well 22 is greater than that of the first well 21, when the water surfaces of the first well 21 and the second well 22 are equal to each other, no water in the first well 21 continuously flows into the second well 22, so that fresh water is not required to be continuously injected into the first well 21, sufficient fresh water can be stored in the connecting pipe 23, the saline-alkali layer 11 is continuously diluted for a long time, saline-alkali in the inclined connecting pipe 23 flows into the second well 22, and therefore the saline-alkali in the saline-alkali layer 11 is reduced; meanwhile, the permeation short pipe 233 is fixedly connected to the permeation hole 232 of the communicating pipe 23, and the permeation short pipe 233 can guide the saline and alkali to permeate into the communicating pipe 23 more accurately under the action of the permeation short pipe 233; and the penetration range of the penetration short pipe 233 is also increased, so that the deep part of the salt-alkali layer 11 can be diluted by fresh water, and the salt purification effect of the salt-alkali layer is improved.
Meanwhile, the diameter of the permeation short pipe 233 gradually increases in the direction away from the communicating pipe 23, as shown in fig. 2, the permeation short pipe 233 is trumpet-shaped, and the port of the permeation short pipe 233 away from the communicating pipe 23 is larger than the connecting portion between the permeation short pipe 233 and the communicating pipe 23, so that more saline and alkaline can enter the communicating pipe 23 through the permeation short pipe 233, and the effect of discharging saline and alkaline is improved.
And the infiltration nozzle stub 233 is kept away from the fixed osmotic membrane 234 that is provided with of tip of communicating pipe 23, osmotic membrane 234 can be geotechnological cloth, can block under the soil gets into the circumstances of infiltration nozzle stub 233, does not influence the water that contains saline and alkaline again and flows back to in the connecting pipe 23 to the effectual jam that prevents communicating pipe 23, and prevented that the soil in the saline and alkaline layer 11 from appearing losing, further promoted saline and alkaline layer 11's net salt effect.
Example three:
as shown in fig. 1-2, flow valves 235 are fixedly arranged at two ends of the communicating pipe 23, and static pressure input type liquid level transmitters 3 are arranged in the first well 21 and the second well 22.
In this embodiment, flow valves 235 are fixedly disposed at two ends of the communicating pipe 23, and static pressure input type liquid level transmitters 3 are disposed in the first well 21 and the second well 22, the flow valves 235 can control the flow and plugging of water flow, when water flow is not needed, the flow valve 235 can be remotely controlled to be closed through a circuit, the static pressure input type liquid level transmitters 3 are arranged in the first well 21 and the second well 22, the static pressure input type liquid level transmitters 3 can measure the liquid levels of the first well 21 and the second well 22, when the liquid level of the first well 21 is the same as that of the second well 22, the flow valve 235 is closed, the liquid level height of the first well 21 is the same as that of the second well 22, water in the first well 21 does not flow to the second well 22, and the situation that saline and alkali in the second well 22 flows back to the first well 21 at the moment and pollutes water in the first well 21 to influence next use is prevented.
Example four:
the bottom of well 21 is provided with No. two pumping device 212, No. two pumping device 212 are used for irrigating planting layer 15.
In this embodiment, the bottom of the first well 21 is provided with the second pumping device 212, the second pumping device 212 is used for irrigating the planting layer 15, when the weather is dry, plants need to be irrigated, if water exists in the first well 21, the plants can be irrigated through the second pumping device 212, so that fresh water can be utilized in multiple ways, and the arrangement can enable the water to flow downwards from top to bottom, so as to drive salt and alkali to flow downwards, part of the salt and alkali flows into the communicating pipe 23 through the penetration short pipe 233, and then enters the second well 22, so that the salt and alkali dilution effect of the salt and alkali layer 11 is improved;
simultaneously, plant the soil surface slope of layer 15, the soil surface height that plant layer 15 and be close to a well 21 is greater than the soil surface height that plant layer 15 and be close to No. two wells 22, when No. two water pumping device 212 take out water to the soil surface, subaerial being provided with the irrigation canals and ditches and cooperating the soil surface slope, the irrigation canals and ditches can lead water to No. two wells 22, when salt layer 11 upwards returns salt seriously, go along with water according to salt, can be with planting the saline-alkali on layer 15 surface and towards No. two wells 22, the effectual saline-alkali on planting layer 15 surface of detaching, and No. two wells 22's top is equipped with the filter screen, can prevent that earth from getting into No. two wells 22.
Claims (10)
1. The saline-alkali soil greening planting system is characterized in that: comprises a planting unit (1) and a salt discharge unit (2);
the planting unit (1) comprises:
the saline-alkali layer (11), the saline-alkali layer (11) is saline-alkali soil;
the isolation layer (12), the isolation layer (12) is positioned above the salt-alkali layer (11), and the isolation layer (12) is used for reducing upward salt return of the salt-alkali layer (11);
a buffer layer (13), wherein the buffer layer (13) is positioned above the isolation layer (12), and the buffer layer (13) is used for neutralizing the saline alkali on the reverse osmosis;
an aquifer (14), the aquifer (14) being located above the buffer layer (13), the aquifer (14) being for collecting water;
a planting layer (15), wherein the planting layer (15) is positioned above the water storage layer (14), and the planting layer (15) is used for planting crops;
the salt elimination unit (2) comprises:
the first well (21), the first well (21) extends into the saline-alkali layer (11), and the top of the first well (21) is provided with a water inlet (211);
the second well (22) extends into the saline-alkali layer (11) and is positioned on the opposite surface of the first well (21), and a first water pumping device (221) is arranged at the bottom of the second well (22);
the communicating pipe (23) connects the first well (21) with the second well (22), the communicating pipe (23) is located in the saline-alkali layer (11), the communicating pipe (23) is provided with a plurality of branches (231), and each branch (231) is provided with a plurality of permeation holes (232).
2. The saline-alkali soil greening planting system according to claim 1, characterized in that: the depth of the second well (22) is greater than the depth of the first well (21).
3. The saline-alkali soil greening planting system according to claim 1, wherein: the communicating pipe (23) is obliquely arranged, and one end of the communicating pipe (23) connected with the first well (21) is higher than one end of the communicating pipe connected with the second well (22).
4. The saline-alkali soil greening planting system according to claim 1, characterized in that: and a permeation short pipe (233) is fixedly connected to the permeation hole (232) on the communicating pipe (23).
5. The saline-alkali soil greening planting system according to claim 4, wherein: the diameter of the permeation short pipe (233) is gradually increased in the direction far away from the communication pipe (23).
6. The saline-alkali soil greening planting system according to claim 5, wherein: the end part of the permeation short pipe (233) far away from the communicating pipe (23) is fixedly provided with a permeation film (234).
7. The saline-alkali soil greening planting system according to claim 6, wherein: and flow valves (235) are fixedly arranged at two ends of the communicating pipe (23).
8. The saline-alkali soil greening planting system according to claim 1, wherein: static pressure input type liquid level transmitters (3) are arranged in the first well (21) and the second well (22).
9. The saline-alkali soil greening planting system according to claim 1, wherein: the bottom of a well (21) is provided with a second water pumping device (212), and the second water pumping device (212) is used for irrigating the planting layer (15).
10. The saline-alkali soil greening planting system according to claim 1, characterized in that: the soil surface of the planting layer (15) is inclined, and the soil surface of the planting layer (15) close to the first well (21) is higher than the soil surface of the planting layer (15) close to the second well (22).
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| CN202210688746.0A CN114982516A (en) | 2022-06-16 | 2022-06-16 | Saline and alkaline land planting technique system |
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| CN202210688746.0A CN114982516A (en) | 2022-06-16 | 2022-06-16 | Saline and alkaline land planting technique system |
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| CN211745207U (en) * | 2020-02-24 | 2020-10-27 | 深圳市翠绿洲环境艺术有限公司 | Saline and alkaline land phytoremediation structure |
| CN212064806U (en) * | 2020-01-13 | 2020-12-04 | 杭州元成规划设计集团有限公司 | Beach saline and alkaline land soil improvement device |
| CN213306415U (en) * | 2020-08-01 | 2021-06-01 | 天津泰达园林建设有限公司 | Saline and alkaline land afforestation structure |
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| CN110230342A (en) * | 2019-04-26 | 2019-09-13 | 天津生态城市政景观有限公司 | Saline and alkaline region above and below ground joint water resource, which is regulated and stored, utilizes system |
| CN211470992U (en) * | 2019-12-17 | 2020-09-11 | 青岛腾远设计事务所有限公司 | Saline and alkaline land salt elimination processing apparatus |
| CN212064806U (en) * | 2020-01-13 | 2020-12-04 | 杭州元成规划设计集团有限公司 | Beach saline and alkaline land soil improvement device |
| CN211745207U (en) * | 2020-02-24 | 2020-10-27 | 深圳市翠绿洲环境艺术有限公司 | Saline and alkaline land phytoremediation structure |
| CN213306415U (en) * | 2020-08-01 | 2021-06-01 | 天津泰达园林建设有限公司 | Saline and alkaline land afforestation structure |
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