CN111149656A - Mountain region distributed flow concentration water storage and supplementary irrigation afforestation system - Google Patents
Mountain region distributed flow concentration water storage and supplementary irrigation afforestation system Download PDFInfo
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- CN111149656A CN111149656A CN202010042235.2A CN202010042235A CN111149656A CN 111149656 A CN111149656 A CN 111149656A CN 202010042235 A CN202010042235 A CN 202010042235A CN 111149656 A CN111149656 A CN 111149656A
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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
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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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/04—Supports for hops, vines, or trees
- A01G17/14—Props; Stays
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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
- A01G25/16—Control of watering
- A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
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- 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
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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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Botany (AREA)
- Sewage (AREA)
Abstract
The invention discloses a mountain land distributed type flow concentration water storage and supplement afforestation system which comprises a plurality of water storage devices which are dispersedly pre-buried in mountain land soil and used for collecting surface runoff and storing the surface runoff, wherein water storage cavities of the water storage devices on the same horizontal plane are communicated in pairs through communicating pipes, nursery stocks penetrate through the corresponding water storage devices and are planted in the soil, and the water storage devices are provided with automatic water outlet and supplement irrigation units which are used for supplying rainwater collected in the nursery stocks to the nursery stocks when the nursery stocks are lack of water. The invention has the characteristics of simple structure, convenient operation, high current collecting efficiency, water saving, time saving, labor saving and low cost, strengthens the drought resistance of the nursery stock in the arid and water-deficient mountainous area, improves the growth quality of the nursery stock, and promotes the ecological restoration and the ecological industry development of the mountainous area. The invention is suitable for the technical field of small-sized hydraulic engineering equipment for rainwater collection, storage and water-saving irrigation, and is mainly applied to field rainwater collection and storage and water-requiring irrigation of nursery stocks.
Description
Technical Field
The invention belongs to the technical field of small-sized water conservancy engineering equipment for rainwater collection, storage and water conservation irrigation, is mainly applied to field rainwater collection and storage and water-demand supplement irrigation of nursery stocks, and particularly relates to a mountain distributed type flow-collecting water-storage supplement irrigation afforestation system.
Background
The Taihang mountain area is not only an important natural ecological barrier in the North China area, but also an important water source supply area, and is also a concentrated and connected deep poverty poor area. In recent years, due to the increasing influence of climate change and human activities, mountain rivers at the upstream of the sea and river basin are also at risk of being dry. The average rainfall in the area is about 600mm for many years, the rainfall in some areas can reach more than 800 mm, but the total amount is still insufficient, the change in the year is large, the seasonal distribution is uneven, 70% of rainfall is concentrated in 7-8 months, the spring is nonirrigated in ten years, and rain and snow are rare in winter, so that the vegetation growth is often in the drought and water shortage dilemma. In addition, the area has thin soil layer, poor texture, poor soil, water and fertilizer leakage and serious water and soil loss, further limits the effective absorption and utilization of the vegetation on the moisture of the rock and soil, and the drought water shortage and the shortage of water storage media become main restriction factors for vegetation recovery and agricultural production in the area.
The rainwater collection and storage and water-saving irrigation technology is an important technical means for developing dry farming forest and fruit industry and dry farming agriculture in mountainous areas and promoting vegetation ecological restoration, and particularly plays an important role in promoting the development of economic society in mountainous areas. However, due to the influences of factors such as complex terrain and geological conditions, large rainfall intensity change, incomplete technical system, low automation degree, time and labor consumption and the like in mountainous areas, the rainwater collecting efficiency and the water utilization efficiency are low, and finally, the application of the rainwater collecting and water-saving irrigation technology in mountainous areas is not very wide.
Disclosure of Invention
The invention provides a distributed type flow-collecting water-storing and filling afforestation system which is simple in structure, convenient to operate, high in flow-collecting efficiency, water-saving, time-saving, labor-saving and low in cost, so that the drought resistance of nursery stocks in arid and water-deficient mountainous areas is enhanced, the growth quality of the nursery stocks is improved, and ecological restoration and ecological industry development of the mountainous areas are promoted.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a mountain land distributed flow-collecting water storage and irrigation afforestation system comprises a plurality of water storage devices which are distributed and pre-buried in mountain land soil and used for collecting surface runoff and storing the surface runoff, wherein water storage cavities of the water storage devices on the same horizontal plane are communicated in pairs through communication pipes, nursery stocks penetrate through the corresponding water storage devices and are planted in the soil, and each water storage device is provided with an automatic water outlet and irrigation unit which is used for supplying rainwater collected in the nursery stocks to the nursery stocks when the nursery stocks are lack of water.
Further, the water storage device comprises a barrel body pre-buried in the mountain soil, the barrel body comprises an inner sleeve and an outer sleeve which are connected with each other in a sealing mode, the bottom of the water storage cavity is formed between the inner sleeve and the outer sleeve, and a barrel cover is arranged on the upper end cover of the barrel body.
Furthermore, a plurality of water seepage holes are uniformly formed on the barrel cover.
Furthermore, a self-cleaning water inlet layer covers the barrel cover, and the upper surface of the self-cleaning water inlet layer is flush with or lower than the surface of the mountain land.
Furthermore, the self-purification water inlet layer comprises a reverse filtering layer and a nylon net layer which are sequentially laid from top to bottom, the reverse filtering layer comprises a coarse sand layer, a small stone layer and a large stone layer which are sequentially laid from top to bottom, the thickness of the coarse sand layer is equal to the thickness of the small stone layer, the thickness of the large stone layer is equal to 1:1:1.5, the particle size of coarse sand in the coarse sand layer is 0.5-2mm, the particle size of small stones in the small stone layer is 5-8mm, and the particle size of large stones in the large stone layer is 10-20 mm.
Furthermore, a plurality of assembling ports are uniformly formed in the barrel cover, and the self-purification water inlet units are assembled on the barrel cover through the assembling ports one by one.
Furthermore, the self-purification water inlet unit comprises a self-purification barrel, the upper end and the lower end of the self-purification barrel are respectively and fixedly provided with an upper isolation net and a lower isolation net, the self-purification barrel extends into the water storage cavity through the assembly opening, the upper end of the self-purification barrel is fixed at the upper end of the assembly opening, and self-purification water inlet filler is filled in the self-purification barrel.
Furthermore, the lower part of the barrel body is uniformly provided with connecting joints detachably connected with the communicating pipe along the circumferential direction of the barrel body, each connecting joint is communicated with the water storage cavity, and the connecting joints which are not connected with the communicating pipe are sealed through plugs.
Furthermore, a supporting mechanism for supporting the nursery stock is installed at the upper end of the water storage device.
Furthermore, the automatic water outlet and supplementing irrigation unit comprises an electromagnetic valve and a water sensor, wherein the electromagnetic valve is installed on the water storage device and used for communicating or blocking the water in the water storage device from flowing to the nursery stock, the water sensor is buried in the nursery stock root system layer, and the electromagnetic valve and the water sensor are both connected to the PLC.
Due to the adoption of the structure, compared with the prior art, the invention has the technical progress that: the invention takes rainwater collection and supplement irrigation as a core, firstly uses a natural slope surface to collect rainwater, and solves the problem that the nursery stock is difficult to survive due to drought and water shortage; the water storage devices are reused for storing runoff rainwater, the problem that the water storage capacity of rock-soil media is poor is solved, then the automatic water outlet and supplementing unit is used for accurately supplementing the seedlings planted at the water storage devices, the problem of limitation of rainwater resource collection is solved, the purpose of timely water outlet is achieved, and the utilization efficiency of limited water resources is improved; and because the water storage devices are communicated with each other through the communicating pipes, when rainwater is collected unevenly, the water levels in the water storage cavities are different, and the communicating pipes are used for supplementing a higher water level and a lower water level, so that the seedlings on the same horizontal plane can be fully supplemented.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural diagram of a water storage device and a support mechanism according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a water storage apparatus according to an embodiment of the present invention;
FIG. 3 is a sectional view of the water storage apparatus with the connection joint removed, showing an axial structure thereof, according to an embodiment of the present invention;
FIG. 4 is a schematic structural view illustrating a water storage device removed from a clean barrel according to an embodiment of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 from another angle;
FIG. 6 is a top view of a structure according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a mountain land planted with seedlings by a water storage device according to an embodiment of the present invention;
FIG. 8 is a side view of the structure of FIG. 7;
FIG. 9 is a schematic structural diagram of a reverse filter layer according to an embodiment of the invention;
fig. 10 is a circuit diagram of an automatic water discharge and replenishment unit according to an embodiment of the present invention.
Labeling components: 1-barrel body, 2-water storage cavity, 3-planting channel, 4-barrel cover, 5-assembly port, 6-self-cleaning barrel, 7-filling cavity, 8-upper isolation net, 9-lower isolation net, 10-connection joint, 11-plug, 12-connecting rod, 13-hoop, 14-communication pipe, 15-electromagnetic valve, 16-nursery stock, 17-nylon net layer, 18-anti-filtration layer and 19-moisture sensor.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.
The invention discloses a distributed type flow-collecting water storage and filling afforestation system for mountainous regions, which comprises a plurality of rows and a plurality of columns of water storage devices which are dispersedly pre-buried in soil of the mountainous regions, wherein the water storage devices have the following functions: for collecting surface runoff and storing it therein. The water storage cavities 2 of the water storage devices on the same horizontal plane are communicated in pairs through the communicating pipes 14, the seedlings 16 penetrate through the corresponding water storage devices to be planted in the soil, and the water storage devices are provided with automatic water outlet and supplement units which are used for supplying rainwater collected in the water storage devices to the seedlings 16 when the seedlings 16 are in water shortage. The invention has the advantages that: the invention takes rainwater collection and supplement irrigation as a core, firstly uses a natural slope surface to collect rainwater, and solves the problem that the nursery stock 16 is difficult to survive due to drought and water shortage; the water storage devices are reused for storing the runoff of the rainwater, the problem that the regulation and storage capacity of rock-soil media to water is poor is solved, then the automatic water outlet and supplementing unit is used for accurately supplementing the seedlings 16 planted at each water storage device, the problem of limitation of rainwater resource collection is solved, the purpose of timely water outlet is realized, and the utilization efficiency of limited water resources is improved; and because the water storage devices are communicated with each other through the communicating pipe 14, when rainwater is collected unevenly, the water levels in the water storage cavities 2 are different, and the communicating pipe 14 is used for supplementing a higher water level and a lower water level, so that the nursery stocks 16 on the same horizontal plane can be fully supplemented.
As a preferred embodiment of the invention, the water storage device comprises a barrel body 1 pre-buried in the mountain land soil, the barrel body 1 comprises an inner sleeve and an outer sleeve which are connected at the bottom in a sealing way, the water storage cavity 2 is formed between the inner sleeve and the outer sleeve, a barrel cover 4 is arranged on the upper end cover of the barrel body 1, and a planting channel 3 is formed in the hollow part of the inner sleeve and is used for allowing the nursery stocks 16 to extend into the soil. In the embodiment, the arid sunny slope in the mountainous area is taken as an example, the afforestation density is 3 multiplied by 4 meters, the height of the afforestation nursery stock 163 is 1.0-1.5 meters, and the base diameter is 1.0-3.0 cm. The diameter of the inner sleeve is 20cm, the diameter of the outer sleeve is 100cm, the height of the outer sleeve is 60cm, and the water can be stored for 0.45 cubic meter at most once.
As a preferred embodiment of the present invention, as shown in fig. 7 to 9, a plurality of water seepage holes are uniformly formed on the tub cover 4, and preferably, the diameter of the water seepage holes on the tub cover 4 is 0.5 to 1.0cm, and the hole pitch is 5.0cm, so as to improve the rainwater collection sufficiency. In the process of rainfall runoff, in order to solve the problem that sediment in the rainfall runoff process enters the water storage cavity 2, the barrel cover 4 is covered with a self-cleaning water inlet layer, and the upper surface of the self-cleaning water inlet layer is flush with or lower than the surface of the mountain land. As shown in figure 9, the self-purification water inlet layer comprises a reverse filtering layer 18 and a nylon net layer 17 which are sequentially paved from top to bottom, wherein the reverse filtering layer 18 comprises a coarse sand layer, a small stone layer and a large stone layer which are sequentially paved from top to bottom, the thickness of the coarse sand layer is 1:1:1.5 of the thickness of the small stone layer, the thickness of the large stone layer is 1:1:1.5 of the thickness of the small stone layer, the particle size of coarse sand in the coarse sand layer is 0.5-2mm, the particle size of small stone in the small stone layer is 5-8mm, and the particle size of large stone in the large stone layer is 10-20 mm. In this embodiment, in order to improve the filtering effect, the mesh number of the nylon mesh layer 17 is preferably 20 meshes, and the yarn diameter is 1.0 mm; the thickness of the coarse sand layer is 5cm, the thickness of the small stone layer is 5cm, and the thickness of the large stone layer is 10 cm; the grain size of the coarse sand in the coarse sand layer is 1.0mm, the grain size of the small stones in the small stone layer is 6.0mm, and the grain size of the large stones in the large stone layer is 15 mm.
As a preferred embodiment of the present invention, as shown in fig. 2 to 5, a plurality of assembling holes 5 are uniformly formed on the tub cover 4, self-cleaning water inlet units are assembled on the tub cover 4 through the assembling holes 5 one by one, and rainwater enters the water storage chamber 2 through the respective cleaning water inlet units. The effect of self-purification unit of intaking is the same with the effect of self-purification water inlet layer, all purifies the rainwater, prevents that too much impurity from getting into water storage chamber 2 and influencing the storage capacity. Wherein, self-purification water inlet unit includes that the upper and lower end is fixed respectively and is provided with self-purification bucket 6 of isolating net 8 and lower isolating net 9, and this self-purification bucket 6 stretches into water storage chamber 2 through assembly opening 5, and the upper end of self-purification bucket 6 is fixed in the upper end of assembly opening 5, and packing chamber 7 in self-purification bucket 6 is filled with self-purification water inlet filler. The self-cleaning water inlet filler has the same structure and material as the self-cleaning water inlet layer. When one or more gaps in the anti-filtering layer 18 in the self-cleaning barrel 6 on the barrel cover 4 are blocked by silt, the self-cleaning barrel 6 is lifted away from the barrel cover 4 for cleaning or direct replacement. Therefore, the embodiment is convenient to operate in the later maintenance stage, and the influence on the collection of rainwater after the anti-filtration layer 18 is invalid is avoided.
As a preferred embodiment of the present invention, as shown in fig. 2, connection joints 10 detachably connected with communication pipes 14 are uniformly configured at the lower part of the tub 1 along the circumferential direction thereof, each connection joint 10 is communicated with the water storage chamber 2, and the connection joints 10 which are not connected with the communication pipes 14 are closed by plugs 11, and the tub 1 are connected with each other, finally forming a net structure as shown in fig. 5.
As a preferred embodiment of the present invention, as shown in fig. 1, a support mechanism is installed at the upper end of the water storage device for supporting the seedling 16 when the seedling 16 is not firmly rooted in the soil. The supporting mechanism comprises connecting rods 12 evenly hinged to the barrel cover 4 along the circumferential direction of the barrel cover 4, the other ends of the connecting rods 12 are hinged to anchor ears 13, the anchor ears 13 are of split structures and are connected together through bolts, a trunk of the seedling 16 is surrounded by the anchor ears 13 and is supported by the connecting rods 12, and therefore the root growth of the seedling 16 is prevented from being influenced in severe weather.
As a preferred embodiment of the present invention, the automatic water discharge and supply unit is specifically configured to include a PLC, an electromagnetic valve 15, and a moisture sensor 19, as shown in fig. 10. The electromagnetic valve 15 is installed on the inner sleeve of the water storage device and used for communicating or blocking the water in the water storage cavity 2 from flowing to the nursery stock 16, the electromagnetic valve 15 is a normally closed electromagnetic valve 15, the power supply is direct current DC12v, and the electromagnetic valve is powered on and powered off. The moisture sensor 19 is buried in 16 root system layers of nursery stock, and solenoid valve 15 and moisture sensor 19 are all connected on the PLC, and the moisture sensor 19 works under the power supply condition of direct current DC12V power, exports a 0-5V direct current voltage signal according to the size of soil water content, and the relation of soil water content Q voltage signal V is: q = V/5. The PLC is provided with a power supply (DC 12 v) output channel, a voltage signal input channel and a relay alarm output channel. The working principle of the embodiment is as follows: when rainfall occurs, rainfall runoff carrying silt enters the water storage cavity 2 of the water storage device through the anti-filtration layer 18 and the nylon net layer 17 to be stored; when the rainfall is over, the moisture content of the rock soil is gradually reduced along with the continuous process of evapotranspiration, the signal is measured by the moisture sensor 19 and is transmitted to the PLC to be compared with a preset value, and when the measured value is smaller than the set value, the PLC drives the electromagnetic valve 15 to open to discharge water to replenish the nursery stock 16.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a distributed mass flow water storage of mountain region mends and irritates afforestation system which characterized in that: the water storage device is provided with an automatic water outlet and replenishing unit which is used for supplying rainwater collected in the water storage device to seedlings when the seedlings are lack of water.
2. The mountain land distributed flow collecting, water storing, supplementing and irrigating afforestation system according to claim 1, wherein: the water storage device comprises a barrel body pre-buried in mountain soil, the barrel body comprises an inner sleeve and an outer sleeve which are connected with each other in a sealing mode, the bottom of the water storage cavity is formed between the inner sleeve and the outer sleeve, and a barrel cover is arranged on the upper end cover of the barrel body.
3. The mountain land distributed flow collecting, water storing, supplementing and irrigating afforestation system according to claim 2, wherein: a plurality of water seepage holes are uniformly arranged on the barrel cover.
4. The mountain land distributed flow collecting, water storing, supplementing and irrigating afforestation system according to claim 3, wherein: and a self-cleaning water inlet layer is covered on the barrel cover, and the upper surface of the self-cleaning water inlet layer is flush with or lower than the surface of the mountain land.
5. The mountain land distributed flow collecting, water storing, supplementing and irrigating afforestation system according to claim 4, wherein: the self-purification water inlet layer comprises a reverse filtering layer and a nylon net layer which are sequentially paved from top to bottom, the reverse filtering layer comprises a coarse sand layer, a small stone layer and a large stone layer which are sequentially paved from top to bottom, the thickness of the coarse sand layer is equal to the thickness of the small stone layer, the thickness of the large stone layer is equal to 1:1:1.5, the particle size of coarse sand in the coarse sand layer is 0.5-2mm, the particle size of small stones in the small stone layer is 5-8mm, and the particle size of large stones in the large stone layer is 10-20 mm.
6. The mountain land distributed flow collecting, water storing, supplementing and irrigating afforestation system according to claim 2, wherein: the barrel cover is uniformly provided with a plurality of assembling ports, and the barrel cover is provided with self-purification water inlet units through the assembling ports one by one.
7. The mountain land distributed flow collecting, water storing, supplementing and irrigating afforestation system according to claim 6, wherein: the self-purification water inlet unit comprises a self-purification barrel, wherein the upper end and the lower end of the self-purification barrel are respectively and fixedly provided with an upper isolation net and a lower isolation net, the self-purification barrel extends into the water storage cavity through the assembly opening, the upper end of the self-purification barrel is fixed at the upper end of the assembly opening, and self-purification water inlet filler is filled in the self-purification barrel.
8. The mountain land distributed flow collecting, water storing, supplementing and irrigating afforestation system according to claim 2, wherein: the lower part of the barrel body is uniformly constructed with connecting joints detachably connected with the communicating pipe along the circumferential direction of the barrel body, each connecting joint is communicated with the water storage cavity, and the connecting joints which are not connected with the communicating pipe are sealed by plugs.
9. The mountain land distributed flow collecting, water storing, supplementing and irrigating afforestation system according to claim 1, wherein: and a supporting mechanism for supporting the nursery stock is arranged at the upper end of the water storage device.
10. The mountain land distributed flow collecting, water storing, supplementing and irrigating afforestation system according to claim 1, wherein: the automatic water outlet and supplementing irrigation unit comprises an electromagnetic valve and a water sensor, wherein the electromagnetic valve is installed on the water storage device and used for communicating or blocking the water in the water storage device from flowing to the nursery stock, the water sensor is buried in a nursery stock root system layer, and the electromagnetic valve and the water sensor are both connected to the PLC.
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| CN112825759A (en) * | 2021-01-20 | 2021-05-25 | 浙江沧海建设有限公司 | Nursery stock maintenance device and method thereof |
| CN114868632A (en) * | 2022-06-01 | 2022-08-09 | 棕榈生态城镇发展股份有限公司 | Water supplementing system suitable for arid area greenery patches |
| CN114916339A (en) * | 2022-05-23 | 2022-08-19 | 绿源鲜品(深圳)农产品发展有限责任公司 | Plant sprays module breeding device |
| CN115362923A (en) * | 2022-09-26 | 2022-11-22 | 中国科学院新疆生态与地理研究所 | Desert oasis transition zone environment restoration water saving device |
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| CN115362923B (en) * | 2022-09-26 | 2023-09-08 | 中国科学院新疆生态与地理研究所 | Desert oasis transition zone environment restoration water-saving device |
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