CN110226380A - The saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, utilizes system - Google Patents
The saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, utilizes system Download PDFInfo
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- CN110226380A CN110226380A CN201910346494.1A CN201910346494A CN110226380A CN 110226380 A CN110226380 A CN 110226380A CN 201910346494 A CN201910346494 A CN 201910346494A CN 110226380 A CN110226380 A CN 110226380A
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- saline
- layer
- water
- water storage
- soil
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Classifications
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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
-
- 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
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
-
- 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
-
- 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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Environmental & Geological Engineering (AREA)
- Cultivation Of Plants (AREA)
Abstract
It regulates and stores the invention discloses the saline and alkaline regional water resources of automatic irrigation and utilizes system, including soil ontology and water storage well；The soil ontology includes the planting soil layer set gradually from top to bottom, permeable film layer, aquifer, waterproof layer and saline and alkaline soil layer；The planting soil layer is equipped with concave herbaceous field, has planting plants in concave herbaceous field；The aquifer lower surface is equipped with the groove for charging into saline and alkaline soil layer, is equipped with hidden pipe in the groove；The hidden pipe slope aspect connection communicates water storage well；The water storage well is arranged at intervals in soil ontology；Lateral waterproof layer anti-package is used in the junction of the system and neighboring buildings or structures；The shaft bottom of the water storage well is equipped with water intaking nest, and intake pipe is equipped in water storage well, and the intake pipe outlet end is equipped with rainer, and the intake pipe is equipped with ball-cock assembly；The present invention penetrates into the rainwater in planting soil layer after can effectively collecting rainfall, and not will lead to the saline-alkali soil layer accumulation of salt in the surface soil to planting soil layer.
Description
Technical field
The invention belongs to salt-soda soil water resource process fields, more particularly, to a kind of saline and alkaline regional water resources tune of automatic irrigation
Store the system of utilizing.
Background technique
China's per capita water resource occupancy is only the 30% of world standard, most area water shortage or serious water shortage, in recent years
Come, increasing to the demand of water resource with the further in-depth of Development of China's Urbanization, how Efficient Development utilizes water resource
The challenge for needing to face jointly as the whole society.
In order to explore the sponge urban construction path under different natural environments, urban morphology, country has carried out two batches totally 30
A sponge city Pilot project construction, sponge urban construction at present is like a raging fire to be carried out in the whole nation, for various different underlays
It is emerged one after another using different rainwater-collecting purifications and the technology and product that utilize in face.Rainwater is a kind of fresh water being of great rarity
Resource, especially for beach saline land, this serious water shortage region collects and utilizes rainwater, that is even more estimable.It is saline and alkaline
Ground is because of water shortage, and salt concentration has exceeded the ability to bear of plant in soil, forms salt damage.Salt comes with water, and salt is gone with water,
So must assure that sufficient freshwater resources supply, saline and alkaline land resource can just accomplish sustainable use.
China's coastal saline-alkali soil gross area is up to 500 × 104hm2,.In these years with economy and industrial expansion, salt-soda soil
Area has become the fresh position of economic development, and in order to meet the needs of Development control area, " aggregate chips drenching layer " adds " hidden pipe salt discharge " to administer
The method in salt-soda soil is widely used.The method that " the aggregate chips drenching layer " adds " hidden pipe salt discharge " to administer salt-soda soil is by salt-soda soil
Soil improvement is good or after replacing with planting soil, aggregate chips is laid below planting soil, saline-alkali soil is isolated, prevent capillary water with high salt
Into good soil, then under aggregate chips layer, weeper drain is set, water that the capillary haline water that comes up of infiltration and good soil are arranged and
When be discharged in city planting ductwork.It is more than simultaneously drenching layer to prevent groundwater level, causes drenching layer to fail, greenery patches elevation is padded with the earthwork
Height, generally padded to be at least higher than 1.5 meters of level of ground water peak or more, haline water is remotely descended in realization, reduces underground with high salt
The influence of water can be afforested normally to guarantee to change good soil no longer by salination, transplant various plants.But it is existing
The method defect that " the aggregate chips drenching layer " having adds " hidden pipe salt discharge " to administer salt-soda soil is: after the rain penetration after rainfall enters soil,
It is lost through aggregate chips layer into saline and alkaline laminar flow, or has been directly discharged into municipal drainage pipe network, rainwater cannot be utilized effectively, while be applied fertilizer
Cheng Zhong, the nutriments such as a large amount of N P and K have also been discharged into municipal rain system therewith, have also caused the eutrophication of downstream water；
Have little time the rainwash rainwater of lower infiltration when rainfall, flow into the low gesture regions such as peripheral path, increases road drainage pressure and interior
Flooded risk, while greenery patches soil washes away road surface with runoff, stays the runoffs pollution problem such as mud after causing road rain；Afforest earth volume
Greatly, uneconomical.
Summary of the invention
It regulates and stores the technical problem to be solved in the present invention is to provide a kind of saline and alkaline regional water resources of automatic irrigation and utilizes system；It should
System penetrates into the rainwater in planting soil layer after can effectively collecting rainfall, and not will lead to the saline-alkali soil layer accumulation of salt in the surface soil to planting soil
Layer；It is also possible to make the reduction of saline land greening absolute altitude, earth volume is reduced, while reducing to peripheral facilities such as roads
Runoff pollution；In salt-soda soil water deficient regions, it can make full use of and infiltrate through each of soil and drip.
In order to solve the first technical problem mentioned above, invention adopts the following technical scheme that:
A kind of saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, utilizes system, including soil ontology and water storage well；The soil ontology
Including planting soil layer, permeable film layer, aquifer, waterproof layer and the saline and alkaline soil layer set gradually from top to bottom；The planting soil layer
It is equipped with concave herbaceous field, there are planting plants in concave herbaceous field；The aquifer lower surface is equipped with the ditch for charging into saline and alkaline soil layer
Slot, the groove is interior to be equipped with hidden pipe；The hidden pipe slope aspect connection communicates water storage well；The water storage well is arranged at intervals on soil ontology
Interior, depth extends to beneath trenches from top to bottom, and the water storage well and the aquifer contact portion borehole wall are seepage pipe structure,
Its part borehole wall is water-tight structure；Lateral waterproof layer anti-package is used in the junction of the system and neighboring buildings or structures；
The shaft bottom of the water storage well is equipped with water intaking nest, is equipped with intake pipe in water storage well, which is equipped with suction pump and always
Extend in water intaking nest, intake pipe outlet end is horizontally set on planting soil layer lower face, the intake pipe outlet end be equipped with to
The upper rainer for stretching out planting soil layer, the intake pipe are equipped with ball-cock assembly.
Preferably, the planting soil layer is with a thickness of 60-140cm.
Preferably, the permeable film layer is permeable non-woven fabrics.
Preferably, the aquifer is the aggregate chips or the macropores gap material such as rubble or pp module of 18-60cm thickness.
Preferably, the waterproof layer includes upper waterproof geotextile layer, membrane waterproofing and lower waterproof geotechnique's layer, in water storage Jing Chu
It extends to below shaft bottom.
Preferably, the hidden pipe is arranged at interval of 6-8 meters；The hidden pipe is PVC seepage pipe and 2% slope aspect is connected to water storage well, institute
Permeable geotextiles can be coated by stating outside hidden pipe.
When very big preferably for greenery area, for convenient for managing and controlling, the saline and alkaline regional water of automatic irrigation is provided
Source, which is regulated and stored, can be divided into multiple water catchment areas using system, and different charge for remittance sections can be separated with waterproof geotextiles anti-package；Instead
Packet height is generally more than 50cm above aquifer.
Preferably, the concave herbaceous field planting plants are resistance to water-wet plant；The recessed depth of the concave herbaceous field is
10-35cm。
Any range documented by the present invention includes any numerical value between end value and end value and end value or end value
Between any subrange for being constituted of any number.
Unless otherwise specified, each raw material in the present invention can be obtained by commercially available purchase, equipment used in the present invention
The conventional equipment in fields can be used or carried out referring to the prior art of fields.
Compared with prior art, the invention has the following beneficial effects:
A kind of saline and alkaline regional water resources of automatic irrigation of the present invention are regulated and stored can effectively collect rainfall using system after penetrate into planting soil
Rainwater in layer, and not will lead to the saline-alkali soil layer accumulation of salt in the surface soil to planting soil layer, the rainwater of collection can be used as greening irrigation, road
Watering etc.；It is also possible to make the reduction of saline land greening absolute altitude, earth volume is reduced, while reducing to peripheries such as roads
The runoff pollution of facility can make full use of in salt-soda soil water deficient regions and infiltrate through each of soil and drip.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is soil ontology section structure diagram of the present invention
Specific embodiment
In order to illustrate more clearly of the present invention, below with reference to preferred embodiment, the present invention is described further.Ability
Field technique personnel should be appreciated that following specifically described content is illustrative and be not restrictive, this should not be limited with this
The protection scope of invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
System, including soil are utilized referring to shown in Fig. 1-Fig. 2, a kind of saline and alkaline regional water resources of automatic irrigation of the present invention are regulated and stored
Ontology 100 and water storage well 200；
The soil ontology 100 includes planting soil layer 1, the permeable film layer 2, aquifer 3, waterproof layer 4 set gradually from top to bottom
With saline and alkaline soil layer 5；
The planting soil layer 1 is equipped with concave herbaceous field 10, has planting plants in concave herbaceous field 10；Concave herbaceous field plantation is planted
Object is resistance to water-wet plant；The recessed depth of the concave herbaceous field is 10-35cm.3 lower surface of aquifer is equipped with and charges into salt
The groove 6 of alkaline earth layer 5, the groove is interior to be equipped with hidden pipe 7；7 slope aspect of the hidden pipe connection communicates water storage well 200；
The water storage well 200 is arranged at intervals in soil ontology 100, and depth extends to 6 lower section at least 1m of groove from top to bottom
Place, and the water storage well 200 and the 3 contact portion borehole wall of aquifer are seepage pipe structure, the other parts borehole wall is water-tight structure；
The shaft bottom of the water storage well 200 is equipped with water intaking nest 9, is equipped with intake pipe 8 in water storage well 200, which is equipped with
Suction pump simultaneously extends in water intaking nest 9, and intake pipe outlet end is horizontally set on planting soil layer lower face, the intake pipe
8 outlet ends are equipped with the rainer 81 for stretching out planting soil layer 1 upwards, and the intake pipe is equipped with ball-cock assembly 82；When water storage well 200
Interior water level increases, and ball-cock assembly 82 is opened, and the rainer 81 that suction pump is opened to export intake pipe starts to planting soil
Layer carries out sprinkling watering；Water level is too low, and ball-cock assembly 82 is closed, and suction pump is out of service.
It is preferably carried out mode according to the present invention, the planting soil layer 1 is with a thickness of 60-140cm.
It is preferably carried out mode according to the present invention, the permeable film layer 2 is permeable non-woven fabrics.
It is preferably carried out mode according to the present invention, the aquifer 3 is the aggregate chips or rubble or pp module etc. of 18-60cm thickness
Macropore gap material.
It is preferably carried out mode according to the present invention, the waterproof layer 4 includes upper waterproof geotextile layer, membrane waterproofing and lower anti-
Water and soil work layer extends to below shaft bottom in water storage Jing200Chu；The setting of waterproof layer 4 can not only guarantee rain penetration to water storage
It is discharged in water storage well 200 after layer 3 by hidden pipe 7, is unlikely to the saline-alkali soil laminar flow mistake that rainwater directly penetrates into lower section；It also ensures
The unlikely reverse osmosis of salt water of saline and alkaline soil layer 5 is to aquifer 3 or even reverse osmosis to planting soil layer 1, to damage to planting soil layer 1；
The mutual seepage problem between aquifer 3 and saline and alkaline soil layer 5 has equally been isolated in water storage Jing Chu in the waterproof layer 4.In addition, upper anti-
Water geotextile layer additionally aids the toughness and intensity of reinforced waterproofing layer, prevents the rubble on upper layer etc. from damaging membrane waterproofing；Equally, under
Waterproof geotechnique's layer facilitates the damage for preventing the saline and alkaline soil layer 5 of lower layer to membrane waterproofing.
It is preferably carried out mode according to the present invention, the hidden pipe 7 is arranged at interval of 6-8 meters；The hidden pipe 7 is PVC seepage pipe
And 2% slope aspect be connected to water storage well 200；To prevent hidden pipe seepage hole from blocking, the permeable geotextiles of hidden pipe outer cladding；Hidden pipe 7 of the present invention
Multiple rows of narrow bar water seepage hole can be outputed on circumference, can meet different ring stiffness and real permeability by controlling percent opening；?
The permeable geotextiles of 7 outer cladding of hidden pipe can play the role of permeating water and silt enters hidden pipe 7 and results in blockage.
It is preferably carried out mode according to the present invention, regulates and stores in the saline and alkaline regional water resources of the automatic irrigation and utilizes system and periphery
Building or the junctions such as structures are adopted to prevent water flow from becoming estranged the influence to infiltration to other structures etc. in the system boundary
Water conservation and antiseepage are carried out with lateral 300 anti-package of waterproof layer.
Be preferably carried out mode according to the present invention, when very big for greenery area, for convenient for managing and controlling, it is described from
The dynamic saline and alkaline regional water resources of sprinkling irrigation, which are regulated and stored, can be divided into multiple water catchment areas using system, and different charge for remittance sections can use waterproof geotechnique
Cloth anti-package is separated；Turn up height is generally more than 50cm (not shown) above aquifer.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.Here all embodiments can not be exhaustive.It is all to belong to this hair
The obvious changes or variations that bright technical solution is extended out are still in the scope of protection of the present invention.
Claims (8)
1. the saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, utilizes system, it is characterised in that: including soil ontology and water storage well；It is described
Soil ontology includes the planting soil layer set gradually from top to bottom, permeable film layer, aquifer, waterproof layer and saline and alkaline soil layer；It is described
Planting soil layer is equipped with concave herbaceous field, has planting plants in concave herbaceous field；The aquifer lower surface is saline and alkaline equipped with charging into
The groove of soil layer, the groove is interior to be equipped with hidden pipe；The hidden pipe slope aspect connection communicates water storage well；The water storage well is arranged at intervals on soil
In earth ontology, depth extends to beneath trenches from top to bottom, and the water storage borehole wall and the aquifer contact portion borehole wall are to seep
Pipe structure, the other parts borehole wall are water-tight structure；In the junction of the system and neighboring buildings or structures using lateral anti-
Water layer anti-package；The shaft bottom of the water storage well is equipped with water intaking nest, and intake pipe is equipped in water storage well, which is equipped with and draws water
It pumps and extends in water intaking nest, intake pipe outlet end is horizontally set on planting soil layer lower face, the intake pipe outlet
End is equipped with the rainer for stretching out planting soil layer upwards, and the intake pipe is equipped with ball-cock assembly.
2. the saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, according to claim 1 utilizes system, it is characterised in that: the plantation
Soil thickness is 60-140cm.
3. the saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, according to claim 1 utilizes system, it is characterised in that: described permeable
Film layer is permeable non-woven fabrics.
4. the saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, according to claim 1 utilizes system, it is characterised in that: the water storage
Layer is the aggregate chips or rubble or pp module of 18-60cm thickness.
5. the saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, according to claim 1 utilizes system, it is characterised in that: the waterproof
Layer includes upper waterproof geotextile layer, membrane waterproofing and lower waterproof geotechnique's layer, is extended to below shaft bottom in water storage Jing Chu.
6. the saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, according to claim 1 utilizes system, it is characterised in that: the hidden pipe
It is arranged at interval of 6-8 meters；The hidden pipe is PVC seepage pipe and 2% slope aspect is connected to water storage well, and permeable geotechnique can be coated outside the hidden pipe
Cloth.
7. the saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, according to claim 1 utilizes system, it is characterised in that: described automatic
Saline and alkaline regional water resources of spraying, which are regulated and stored, is divided into multiple water catchment areas using system, and different charge for remittance sections can use waterproof geotextiles anti-package
It is separated；Turn up height is generally more than 50cm above aquifer.
8. the saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, according to claim 1 utilizes system, it is characterised in that: the plantation
The resistance to water-wet plant of plant；The recessed depth of the concave herbaceous field is 10-35cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346494.1A CN110226380A (en) | 2019-04-26 | 2019-04-26 | The saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, utilizes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346494.1A CN110226380A (en) | 2019-04-26 | 2019-04-26 | The saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, utilizes system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110226380A true CN110226380A (en) | 2019-09-13 |
Family
ID=67860295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910346494.1A Withdrawn CN110226380A (en) | 2019-04-26 | 2019-04-26 | The saline and alkaline regional water resources of automatic irrigation, which are regulated and stored, utilizes system |
Country Status (1)
| Country | Link |
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| CN (1) | CN110226380A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111328489A (en) * | 2020-01-19 | 2020-06-26 | 天津大学 | System and method for efficiently improving coastal heavy saline soil by rainwater |
| CN111587731A (en) * | 2020-06-16 | 2020-08-28 | 天津泰达盐碱地绿化研究中心有限公司 | Water-saving coastal saline-alkali soil direct greening system and construction method thereof |
| CN113366943A (en) * | 2021-06-02 | 2021-09-10 | 山东世鑫建设工程有限公司 | Undercurrent landscape saline-alkali soil greening system based on river |
-
2019
- 2019-04-26 CN CN201910346494.1A patent/CN110226380A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111328489A (en) * | 2020-01-19 | 2020-06-26 | 天津大学 | System and method for efficiently improving coastal heavy saline soil by rainwater |
| CN111587731A (en) * | 2020-06-16 | 2020-08-28 | 天津泰达盐碱地绿化研究中心有限公司 | Water-saving coastal saline-alkali soil direct greening system and construction method thereof |
| CN113366943A (en) * | 2021-06-02 | 2021-09-10 | 山东世鑫建设工程有限公司 | Undercurrent landscape saline-alkali soil greening system based on river |
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Application publication date: 20190913 |
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