CN113366943B - Undercurrent landscape saline-alkali soil greening system based on river - Google Patents
Undercurrent landscape saline-alkali soil greening system based on river Download PDFInfo
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- CN113366943B CN113366943B CN202110612872.3A CN202110612872A CN113366943B CN 113366943 B CN113366943 B CN 113366943B CN 202110612872 A CN202110612872 A CN 202110612872A CN 113366943 B CN113366943 B CN 113366943B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B77/00—Machines for lifting and treating soil
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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
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
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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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- 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
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/103—Naturals or landscape retention bodies, e.g. ponds
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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
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- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Water Supply & Treatment (AREA)
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- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a river-based undercurrent landscape saline-alkali soil greening system, which belongs to the technical field of municipal water conservancy and comprises a reservoir, wherein a water inlet is formed in one side of the reservoir, the water inlet is communicated with the upstream of an external river channel, a water-blocking dam is arranged on the other side of the reservoir, a water channel is formed in the other side of the water-blocking dam, a water suction pump is arranged in the water channel, a plurality of overflow holes are communicated with water outlets of the water suction pump, the overflow holes are communicated with an undercurrent landscape system, a brine pool is arranged on the other side of the reservoir, the brine pool is provided with a water outlet, and the water outlet is communicated with the downstream of the external river channel; including planting the soil layer, first permeable stratum has been laid to planting soil layer bottom, is equipped with first salt discharging pipe in the first permeable stratum, and a plurality of trompils have been seted up to salt discharging pipe's body, and first salt discharging pipe one end still is equipped with first salt discharging mouth, first salt discharging mouth and salt pond intercommunication. The method depends on greening projects around the riverway, can greatly delay the alkali-resisting time of the planting soil, reduce the frequency of replacing the planting soil and save social resources.
Description
Technical Field
The invention relates to the technical field of water conservancy greening, in particular to a river-based undercurrent landscape saline-alkali soil greening system.
Background
The saline-alkali soil refers to a land with a high saline-alkali value (soil ph value), particularly, coastal areas in China are influenced by geographical environment and climate, the saline-alkali value of the land is generally high, the saline-alkali soil cannot bypass in greening projects, and common greening plants cannot survive in certain lands with high saline-alkali values, so that the land salinization brings great difficulty to greening construction.
The general method of prior art solution saline and alkaline land can't plant the afforestation plant is to change saline and alkaline soil for planting soil, then lay salt elimination pipe and salt elimination well in planting soil bottom, because the infiltration of the inside moisture of soil, natural phenomena such as subside, it is salinized that planting soil also can be permeated by peripheral saline and alkaline soil, and salt elimination pipe and salt elimination well main function are washed away planting soil through natural precipitation to this reduces the saline and alkaline value of planting soil, then the rainwater of washing away planting soil can be arranged into in the salt elimination well through the salt elimination pipe. Although prior art can reduce the saline and alkaline value of planting soil through the scouring action of natural precipitation to planting soil, but because the soil infiltration is planted to the soil all directions constantly from the saline and alkaline of soil, natural precipitation frequency is unset, and saline and alkaline infiltration volume is greater than the rainwater scouring volume far away, consequently, planting soil still can salinization, and the time of salinization is shorter, has to replace soil again after planting soil salinization, carries out the afforestation construction again, has brought unnecessary wasting of resources.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the undercurrent landscape saline-alkali soil greening system based on the river, which can greatly delay the alkali-resisting time of planting soil, reduce the frequency of replacing the planting soil and save social resources by depending on greening projects around the river.
The specific scheme is as follows: a saline-alkali land greening system based on an undercurrent landscape wetland comprises a water storage pool, wherein the water storage pool is formed by taking a steel bar as a framework and filling concrete, a water inlet is formed in one side of the water storage pool, the water inflow of the water inlet is controlled by a gate, the water inlet is communicated with the upstream of an external river channel, a water-separating dam is arranged on the other side of the water storage pool, a water channel is arranged on the other side of the water-separating dam, a water suction pump is arranged in the water channel, a plurality of overflow holes are communicated with the water outlet of the water suction pump, the overflow holes are communicated with an undercurrent landscape system, a saline water pool is arranged on the other side of the undercurrent landscape system, the saline water pool is provided with a water outlet, and the water outlet is communicated with the downstream of the external river channel;
undercurrent view system is including planting the soil layer, planting the soil layer bottom and having laid hydrophilic type barrier cloth, hydrophilic type barrier cloth has been equipped with first permeable stratum, be equipped with first salt discharging pipe in the first permeable stratum, a plurality of trompils have been seted up to salt discharging pipe's body, first salt discharging pipe still is equipped with first salt discharging port, first salt discharging port with the brine pit intercommunication, first salt discharging pipe is the pvc bellows.
As a further scheme of the invention, the bottom of the filler is paved with hydrophobic isolation cloth which has water-resisting property.
As a further scheme of the invention, a second permeable layer is laid at the bottom of the hydrophobic isolation cloth, a plurality of scouring water pipes for scouring the second permeable layer are distributed in the second permeable layer, one end of each scouring water pipe is a water inlet, the water inlets of the scouring water pipes are distributed at the bottom of the water channel and communicated with the water channel, the other end of each scouring water pipe is a water outlet, and the water outlet is communicated with the inside of the second permeable layer.
As a further scheme of the invention, a second salt discharging port is formed below the first salt discharging port, and the second salt discharging port is communicated with the second permeable layer.
As a further scheme of the invention, the second salt discharging port is also positioned below the plane of the flushing water pipe.
As a further scheme of the invention, the hydrophilic isolation cloth is geotextile, and the hydrophobic isolation cloth is hydrophobic non-woven fabric.
As a further scheme of the invention, one end of the salt discharge pipe is of a sealing structure, the other end of the salt discharge pipe is of the first salt discharge port, and the height of one end of the sealing structure of the salt discharge pipe is higher than that of one end of the first salt discharge port. The design ensures that the saline-alkali water in the salt discharge pipe can smoothly flow to the first salt discharge port.
As a further scheme of the invention, the planting soil layer comprises planting soil, and ceramsite or red brick fragments are mixed in the planting soil.
As a further scheme of the invention, the filling material in the first water-permeable layer and the second water-permeable layer is rock nitrate.
As a further scheme of the invention, the upper half part of the dam body of the water-proof dam is provided with a plurality of limbers, the top of the dam body of the water-proof dam comprises a plurality of bars of stones, and one side of the plurality of bars of stones, which is close to the reservoir, is fixedly connected with a filter screen.
The invention has the beneficial effects that:
1. the greening system is mainly used for landscape greening at the river side, water at the upstream of the river flows into the water storage tank through the water inlet for sedimentation and then flows into the water channel through the water-separating dam, and in the water channel, the water pump introduces the water into the undercurrent landscape system through the overflow hole; in the undercurrent landscape system, landscape plants planted in the planting soil layer are irrigated by water flowing out of the overflow holes, and the water flow scours the planting soil while irrigating; the washed water can carry the saline-alkali ingredients in the planting soil to pass through the hydrophilic isolation cloth to enter the first permeable layer, then enters the inside of the salt discharge pipe through the opening of the salt discharge pipe, and finally is discharged into the saline water pond through the first salt discharge port, so that the design can prevent the roots of the plants from being soaked by water for a long time to influence the development, and meanwhile, the saline-alkali water can be timely discharged; the water stored in the brine pond can be treated by a chemical method (adding acid for neutralization or adding gypsum for replacement) and then is discharged into an external downstream river channel through a water outlet, wherein in order to increase the landscape effect of the brine pond, reed, plants or fishes suitable for growing in alkaline water, such as crucian, mullet and the like can be planted in the brine pond.
2. The effect of hydrophilic type barrier cloth is when permeating water, can prevent that the intraformational planting soil of planting soil from falling into first permeable stratum insidely, and then causes the jam of first row of salt pipe.
3. The hydrophobic isolation cloth is hydrophobic, so that the salt and alkali components in the soil at the bottom of the hydrophobic isolation cloth can be effectively prevented from permeating to the top of the hydrophobic isolation cloth, and the alkali return speed of the planting soil is delayed.
4. The cooperation of second permeable stratum is washed away the water pipe, introduces the water in the ditch to the second permeable stratum in, realizes continuously washing away the second permeable stratum and have mobility, and such design has washed away most by the upwards infiltration salt and alkali composition of bottom soil to very big delay the alkali rate of returning of planting soil, the water of washing away is discharged through the second row salt mouth.
5. The ceramsite or red brick blocks in the planting soil layer can enhance the air permeability of the planting soil, not only is beneficial to the growth of landscape plants, but also improves the scouring efficiency of the soil in the irrigation process.
6. The design of barred rock and filter screen not only can reduce and enter into the interior floated impurity of ditch, and the afforestation workman can step on the barred rock moreover, conveniently carries out regular clearance to the filter screen.
Drawings
FIG. 1 is a schematic plane structure diagram of a river-based undercurrent landscape saline-alkali soil greening system;
FIG. 2 is a schematic view of the construction of a dam;
FIG. 3 is a schematic view of a raceway configuration;
FIG. 4 is a cross-sectional view of the operating principle of the undercurrent landscape system;
fig. 5 is a schematic view of the structure of the salt discharge pipe.
Reference numerals: 1. 1-1 part of undercurrent landscape system, 1-2 parts of hydrophilic type isolation cloth, 1-2 parts of first permeable layer, 1-3 parts of planting soil layer, 1-4 parts of salt discharge pipe, 1-4-1 parts of first salt discharge port, 1-4-2 parts of opening, 1-5 parts of hydrophobic type isolation cloth, 1-6 parts of second permeable layer, 1-7 parts of second salt discharge port, 2 parts of brine pond, 3 parts of water outlet, 4 parts of downstream, 5 parts of water inlet, 6 parts of upstream, 7 parts of canal, 8 parts of flushing water pipe, 8-1 parts of water outlet, 8-2 parts of water inlet, 9 parts of overflow hole, 10 parts of reservoir, 11 parts of water-proof dam, 11-1 parts of water through hole, 11-2 parts of filter screen, 11-3 parts of filter screen, barren rock, 12 parts of drip irrigation pipe.
It is noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Detailed Description
The present invention will be further described with reference to the drawings and examples, and it should be noted that the following description is only for the purpose of illustrating the present invention and is not intended to limit the present invention.
Example 1:
as shown in fig. 1 to 4, the saline-alkali soil purification system based on the shallow surface flow landscape wetland comprises a water storage tank, wherein a water inlet is formed in one side of the water storage tank and is communicated with the upstream of an external river channel. The cistern opposite side is equipped with water-stop dam, water-stop dam opposite side is equipped with the ditch, be equipped with the suction pump in the ditch, the delivery port intercommunication of suction pump has a plurality of spillway holes, the spillway hole intercommunication has undercurrent view system, undercurrent view system opposite side is equipped with the brine pit, the brine pit is equipped with the delivery port, the delivery port communicates with the low reaches in outside river course.
Wherein, undercurrent view system has laid including planting the soil layer planting soil layer surface and has driped irrigation the pipe, drips irrigation pipe and spillway hole intercommunication, and it is used for watering the operation for the plant of planting the soil layer to drip irrigation the pipe, plant the soil layer bottom and laid hydrophilic type barrier cloth, hydrophilic type barrier cloth is geotechnological cloth, hydrophilic type barrier cloth is equipped with first permeable bed, and the intussuseption of first permeable bed intussuseption material is the saltpeter, be equipped with first salt discharge pipe in the first permeable bed, a plurality of trompils have been seted up to the body of salt discharge pipe, and wherein, the aperture of trompil should be less than the minimum particle diameter of saltpeter, and the purpose of this design prevents that the saltpeter from entering into the intraductal jam that causes the salt discharge pipe of salt discharge. First salt discharging pipe one end still is equipped with first salt discharging port, first salt discharging port and salt water pond intercommunication, and hydrophobic type isolation cloth has been laid to first permeable layer bottom, and hydrophobic type isolation cloth is hydrophobic type non-woven fabrics. The second permeable stratum has been laid to hydrophobic type barrier cloth bottom, and the intraformational filler material that permeates water of second is the nitre equally, it has a plurality of washing away water pipes that are used for wasing away the second permeable stratum to distribute in the second permeable stratum, every washing away water pipe one end and being the water inlet, the water inlet that washes away the water pipe distribute in the ditch bottom and with the ditch intercommunication, every the other end that washes away the water pipe is the outlet, the outlet with the inside intercommunication in second permeable stratum. The second salt discharge port is formed below the first salt discharge port, the second salt discharge port is communicated with the second permeable layer, water in the water channel is introduced into the second permeable layer through the scouring water pipe, the second permeable layer is scoured in real time, and the scoured water is discharged through the second salt discharge port. The second salt discharge port is also positioned below the plane of the flushing water pipe. Arrange salt pipe one end and be seal structure, the other end of arranging salt pipe does first row salt mouth, arrange the standard height of salt pipe seal structure one end is higher than first row salt mouth one end. The planting soil layer comprises planting soil, red brick fragments are mixed in the planting soil, and the red brick fragments can enhance the air permeability of the planting soil. A plurality of limbers have been seted up to the dam body upper half of water-proof dam, the even distribution in dam body top of water-proof dam has a plurality of bars stone, and a plurality of the bar stone is close to cistern one side fixedly connected with filter screen.
It is worth noting that in order to control the water level of the undercurrent landscape system and avoid the situation that the water content of the planting soil layer is too high and the growth of landscape plants is affected, the water level in the ditch is lower than the bottommost layer of the planting soil layer.
The greening system is used for landscaping beside a river, water at the upstream of the river flows into the water storage tank through the water inlet for sedimentation, then flows into the water channel through the limber holes of the water-isolating dam, and garbage floating on the water surface can be blocked by the filter screen.
The water is pumped into the overflow hole by the water pump in the water channel so as to flow into the drip irrigation pipe, the drip irrigation operation is carried out on the planting soil layer, the water flow scours the planting soil while the irrigation is carried out, the salt alkalinity of the planting soil is reduced under the action of the water scour, and the planting efficiency of the planting soil is greatly prolonged; the washed water can carry the saline-alkali ingredients in the planting soil to pass through the hydrophilic isolation cloth to enter the first permeable layer, then enters the inside of the salt discharge pipe through the opening of the salt discharge pipe, and finally is discharged into the saline water pond through the first salt discharge port, so that the design can prevent the roots of the plants from being soaked by water for a long time to influence the development, and meanwhile, the saline-alkali water can be timely discharged; the water stored in the brine pond can be treated by a chemical method (adding acid for neutralization or adding gypsum for replacement) and then discharged into an external river channel through a water outlet, wherein in order to increase the landscape effect of the brine pond, reed, crucian, mullet and other plants or fishes suitable for growing in alkaline water can be planted in the brine pond.
In the whole process, the water quantity of the whole greening system is controlled by controlling the valves of the water inlet and the water outlet. The greening system takes water upstream, regularly washes planting soil in the undercurrent landscape system, takes away a large amount of saline-alkali ingredients in the planting soil, and simultaneously forms an isolation washing zone by the design of a second permeable layer in the undercurrent landscape system, so that the alkali return amount of the soil at the bottom of the ground can be effectively prevented.
Example 2
As shown in fig. 1 to 4, the system for purifying saline-alkali soil based on the shallow surface current landscape wetland comprises a reservoir, wherein a water inlet is formed in one side of the reservoir and is communicated with the upstream of an external river channel. The cistern opposite side is equipped with water-stop dam, water-stop dam opposite side is equipped with the ditch, be equipped with the suction pump in the ditch, the delivery port intercommunication of suction pump has a plurality of spillway holes, the spillway hole intercommunication has undercurrent view system, undercurrent view system opposite side is equipped with the brine pit, the brine pit is equipped with the delivery port, the delivery port communicates with the low reaches in outside river course.
Wherein, undercurrent view system has laid including planting the soil layer planting soil layer surface and has driped irrigation the pipe, drips irrigation pipe and spillway hole intercommunication, and it is used for watering the operation for the plant of planting the soil layer to drip irrigation the pipe, plant the soil layer bottom and laid hydrophilic type barrier cloth, hydrophilic type barrier cloth is geotechnological cloth, hydrophilic type barrier cloth is equipped with first permeable bed, and the intussuseption of first permeable bed intussuseption material is the saltpeter, be equipped with first salt discharge pipe in the first permeable bed, a plurality of trompils have been seted up to the body of salt discharge pipe, and wherein, the aperture of trompil should be less than the minimum particle diameter of saltpeter, and the purpose of this design prevents that the saltpeter from entering into the intraductal jam that causes the salt discharge pipe of salt discharge. First salt discharging pipe one end still is equipped with first salt discharging port, first salt discharging port and salt water pond intercommunication, and hydrophobic type isolation cloth has been laid to first permeable layer bottom, and hydrophobic type isolation cloth is hydrophobic type non-woven fabrics. And a second permeable layer is laid at the bottom of the hydrophobic isolation cloth, and the filling material in the second permeable layer is also rock nitrate. The second permeable layer is internally distributed with a plurality of scouring water pipes for scouring the second permeable layer, one end of each scouring water pipe is a water inlet, the water inlets of the scouring water pipes are distributed at the bottom of the ditch and communicated with the ditch, the other end of each scouring water pipe is a water outlet, and the water outlets are communicated with the inside of the second permeable layer. The second salt discharge port is formed below the first salt discharge port, the second salt discharge port is communicated with the second permeable layer, water in the water channel is introduced into the second permeable layer through the scouring water pipe, the second permeable layer is scoured in real time, and the scoured water is discharged through the second salt discharge port. The second salt discharge port is also positioned below the plane of the flushing water pipe. Arrange salt pipe one end and be seal structure, the other end of arranging salt pipe does first row salt mouth, arrange the standard height of salt pipe seal structure one end is higher than first row salt mouth one end. The planting soil layer comprises planting soil, wherein the planting soil is mixed with ceramsite, and the ceramsite can enhance the air permeability of the planting soil. A plurality of limbers have been seted up to the dam body upper half of water proof dam, the even distribution in dam body top of water proof dam has a plurality of bars stone, and a plurality of the bars stone is close to cistern one side fixedly connected with filter screen.
It is worth noting that in order to control the water level of the undercurrent landscape system and avoid the situation that the water content of the planting soil layer is too high and the growth of landscape plants is affected, the water level in the ditch is lower than the bottommost layer of the planting soil layer.
The present invention is not intended to be limited to the embodiments shown herein, and any modifications, equivalents, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
Other technical features than those described herein are well known in the art, and are not described in detail herein in order to avoid obscuring the novel features of the present invention.
Claims (3)
1. The system for greening the saline-alkali soil by using the underflow landscape based on the river is characterized by comprising a water storage tank (10), wherein a water inlet (5) is formed in one side of the water storage tank (10), the water inlet (5) is communicated with the upstream (6) of an external river channel, a water separation dam (11) is arranged on the other side of the water storage tank (10), a water channel (7) is arranged on the other side of the water separation dam (11), a water suction pump (13) is arranged in the water channel (7), a water outlet (3) of the water suction pump is communicated with a plurality of overflow holes (9), the overflow holes (9) are communicated with the underflow landscape system (1), a saline water pool (2) is arranged on the other side of the underflow landscape system (1), a water outlet (3) is formed in the saline water pool (2), and the water outlet (3) is communicated with the downstream (4) of the external river channel; the undercurrent landscape system (1) comprises a planting soil layer (1-3), a hydrophilic isolation cloth (1-1) is laid at the bottom of the planting soil layer (1-3), the hydrophilic isolation cloth (1-1) is provided with a first permeable layer (1-2), a first salt discharge pipe (1-4) is arranged in the first permeable layer (1-2), a pipe body of the salt discharge pipe (1-4) is provided with a plurality of holes (1-4-2), one end of the first salt discharge pipe (1-4) is also provided with a first salt discharge port (1-4-1), and the first salt discharge port (1-4-1) is communicated with a brine pond (2);
a hydrophobic isolation cloth (1-5) is laid at the bottom of the first permeable layer (1-2);
a second permeable layer (1-6) is laid at the bottom of the hydrophobic isolation cloth (1-5), a plurality of scouring water pipes (8) used for scouring the second permeable layer (1-6) are distributed in the second permeable layer (1-6), one end of each scouring water pipe (8) is a water inlet (8-2), the water inlets (8-2) of the scouring water pipes (8) are distributed at the bottom of the water channel (7) and communicated with the water channel (7), the other end of each scouring water pipe (8) is a water outlet (8-1), and the water outlets (8-1) are communicated with the inside of the second permeable layer (1-6);
a second salt discharge port (1-7) is formed below the first salt discharge port (1-4-1), and the second salt discharge port (1-7) is communicated with the second permeable layer (1-6);
the second salt discharge port (1-7) is also positioned below the plane of the flushing water pipe (8);
the hydrophobic isolation cloth (1-5) is a hydrophobic non-woven fabric;
one end of the salt discharge pipe (1-4) is of a sealing structure, the other end of the salt discharge pipe (1-4) is of the first salt discharge port (1-4-1), and the height of one end of the sealing structure of the salt discharge pipe (1-4) is higher than that of one end of the first salt discharge port (1-4-1);
the water-proof dam is characterized in that a plurality of water through holes (11-1) are formed in the upper half part of the dam body of the water-proof dam (11), a plurality of bars of stones (11-3) are uniformly distributed on the top of the dam body of the water-proof dam (11), and a filter screen (11-2) is fixedly connected to one side, close to the reservoir (10), of the bars of stones (11-3).
2. The river-based undercurrent landscape saline-alkali soil greening system according to claim 1, wherein the planting soil layer (1-3) comprises planting soil, and ceramsite or red brick fragments are mixed in the planting soil.
3. The river-based undercurrent landscape saline-alkali soil greening system according to claim 2, wherein the filling materials in the first and second water-permeable layers (1-2 and 1-6) are saltpeter.
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| CN202110612872.3A CN113366943B (en) | 2021-06-02 | 2021-06-02 | Undercurrent landscape saline-alkali soil greening system based on river |
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| CN114467807A (en) * | 2022-02-21 | 2022-05-13 | 中国水产科学研究院渔业机械仪器研究所 | Method for removing salt and reducing alkali in chloride type saline-alkali pond |
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| CN205052094U (en) * | 2015-10-27 | 2016-03-02 | 江苏景然园林建设有限公司 | Salt system is arranged in saline and alkaline land |
| CN205883902U (en) * | 2016-06-08 | 2017-01-18 | 江苏苑艺园林建设有限公司 | Saline soil reclamation water saving system |
| CN206226947U (en) * | 2016-06-25 | 2017-06-09 | 江苏城中园林股份有限公司 | A kind of saline land greening system |
| CN207561028U (en) * | 2017-12-12 | 2018-07-03 | 湖北南轻法麦克斯作物营养有限公司 | A kind of afforestation equipment for alkaline land improving |
| CN207720661U (en) * | 2017-12-25 | 2018-08-14 | 中国科学院地理科学与资源研究所 | Double hidden pipe salt discharges and Intelligent irrigation system |
| CN110226380A (en) * | 2019-04-26 | 2019-09-13 | 天津生态城市政景观有限公司 | The saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, utilizes system |
| 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 |
| AU2020102841A4 (en) * | 2020-10-19 | 2020-12-17 | Research Institute for Environmental Innovation (Binhai, Tianjin) | A soil improvement methods for saline-alkaline land |
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2021
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