Infiltration type gobi flood control and sandstorm protection system and construction method and application of infiltration type gobi flood control and sandstorm protection system

Abstract

The invention discloses an infiltration type gobi flood control and wind sand protection system and a construction method and application thereof. The system comprises a flood control unit and a sand wind protection unit which are sequentially arranged in the main wind direction; the flood control unit comprises a plurality of flood infiltration zones which are arranged in parallel; the sand wind protection unit comprises a sand blocking and diversion unit, a wind rolling sand blocking unit, a sand blocking barrier unit and a sand stabilization unit which are sequentially arranged in the main wind direction, the sand blocking and diversion unit comprises two sand blocking and diversion embankments, and the two sand blocking and diversion embankments form a triangular supporting structure obliquely intersecting with the flood flow direction; the wind-rolling sand-blocking unit comprises a plurality of wind-rolling sand-blocking balls freely rolling along with wind, the sand-blocking barrier unit comprises a plurality of triangular sand-blocking barriers, and the sand-fixing unit comprises a tent-shaped sand-fixing barrier. Flood control of an upstream area and sand protection of a downstream area can be organically combined, an environment-friendly flood and sand comprehensive protection system is achieved, and the flood and sand comprehensive protection system is suitable for being widely applied to areas such as desert gobi wide valleys, alluvial-proluvial fans and dry riverbeds.

Description

Technical Field

[0001] The present invention relates to an infiltration-type gobi flood control and sandstorm prevention system, a construction method thereof, and an application, belonging to the technical field of ecological environment treatment. Background Art

[0002] In China, many railway, highway, wind power, and photovoltaic facilities in gobi areas are built in alluvial-proluvial fans or wide valleys of desert gobi. Since the width of these terrains is generally several hundred meters to dozens of kilometers, and the river channels are scattered, it is very difficult to set up flood control dams, and they often become channels for wind mouths, corridors, and surface runoff. Generally, the airflow will accelerate under the action of the bottleneck effect and the downslope wind, and the relatively large terrain slope also creates favorable conditions for the development of floods. Therefore, in these areas, in addition to serious sandstorm hazards, they will also encounter flood hazards, which are characterized by low occurrence frequency, weak protection, and strong harm. For example, in mid-June 2011, Dunhuang City, Gansu Province was severely threatened by gobi floods, which washed out the roadbed and bridges, threatening infrastructure such as cultural relics, the airport, and the railway station.

[0003] The gobi stratum generally consists of gravelly residual deposits, alluvial-proluvial deposits, aeolian sand, loess, clay and other substances. However, there are special layered structures near the surface in many gobi areas, especially in desert wide valleys and large alluvial-proluvial fans with surface runoff development, such as mirabilite layers or hard clay layers. The mirabilite layer is usually formed due to the evaporation of groundwater and the upward aggregation of salts. This layered structure will, to a certain extent, prevent the infiltration of water, causing water to accumulate near the surface or form runoff, affecting the water supply required for vegetation growth and the water dynamic balance of the soil. The hard clay layer is relatively dense and will also hinder the infiltration of water, resulting in water accumulation on the surface or flowing along the surface, affecting the hydrological characteristics and ecological environment of the gobi area. These special strata close to the surface generally have a distribution depth of 10-50 cm and a thickness ranging from a few centimeters to dozens of centimeters. These impervious strata prevent the infiltration of surface runoff and are the main reason for the outbreak of floods during heavy rainfall in gobi areas.

[0004] The energy of floods and the substances they carry is much higher than that of windblown sand, and it can easily damage the windblown sand protection system. In practice, it is necessary to first weaken the upstream floods and then build a windblown sand protection system downstream to reduce the harm of windblown sand to the protected object. However, in fact, the windblown sand protection measures for roads are generally located at a certain distance upwind of the road, while flood control dikes or diversion dikes are generally adjacent to the road and connected to the culverts of the road so that the runoff can flow into the culverts along the diversion dikes and then pass through the road to prevent the roadbed from being washed away. In this way, the lack of flood control measures upstream makes the windblown sand protection measures vulnerable to flood damage, resulting in the failure of the windblown sand protection measures. Especially in the Gobi wide valleys and alluvial fans, floods often overflow the river channels, forming broad water surfaces spreading in all directions, and the rapid water flow will cause serious damage to facilities such as the windblown sand protection system and the roadbed. Currently, for large-scale wind and photovoltaic power stations in alluvial fans, wide valley corridors, and areas without flood control measures such as dikes upstream, the harm of Gobi floods they face is also becoming increasingly serious.

[0005] In summary, the existing flood and windblown sand protection technologies cannot well integrate flood control and sand prevention into a single system, nor can they protect the protected object from both flood attacks and windblown sand hazards. Moreover, simply combining the existing flood and sand prevention technologies cannot achieve good comprehensive flood and windblown sand protection effects. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a submersive Gobi flood control and windblown sand protection system, its construction method, and application.

[0007] To achieve the foregoing invention purpose, the technical solutions adopted by the present invention include:

[0008] An embodiment of the present invention provides a submersive Gobi flood control and windblown sand protection system, including a flood control unit and a windblown sand protection unit arranged in sequence along the main wind direction;

[0009] Among them, the flood control unit includes a plurality of parallel flood infiltration zones, the flood infiltration zones are perpendicular to the Gobi flood channel, and include a plurality of fractured zones permeable to water formed in the Gobi strata, and the fractured zones at least extend from the Gobi surface to the bottom of the hard clay layer;

[0010] The sand and wind protection unit includes a sand blocking and diversion unit, a tumbleweed sand blocking unit, a sand barrier unit, and a sand fixation unit arranged in sequence along the main wind direction. The sand blocking and diversion unit includes two sand blocking and diversion dikes. The length directions of the two sand blocking and diversion dikes intersect with the length direction of the flood channel at an acute angle, and the two sand blocking and diversion dikes and the flood channel are connected at the middle part of the flood channel, forming a triangular support structure that intersects obliquely with the flood flow direction. The tumbleweed sand blocking unit includes a plurality of wind-rolling sand blocking balls that can freely roll with the wind. The sand barrier unit includes a plurality of triangular sand barriers arranged in parallel. The length direction of the triangular sand barrier is perpendicular to the main wind direction. The sand fixation unit includes a plurality of tent-shaped sand barriers.

[0011] Further, the sand blocking and diversion unit, the tumbleweed sand blocking unit, the sand barrier unit, and the sand fixation unit are all strip-shaped. Each strip is parallel to each other and perpendicular to the main wind direction, and a blank area is provided between each strip.

[0012] Further, the width of the blank area is 20 - 100 m.

[0013] Further, both the flood control unit and the sand and wind protection unit are located upwind of the protected object.

[0014] Further, the flood control unit includes 28 parallel flood infiltration zones.

[0015] Further, the spacing between two adjacent flood infiltration zones is 20 - 100 m.

[0016] Further, the width of the flood infiltration zone is 50 - 200 m.

[0017] Further, the fractured fissure zone extends from the gobi surface to a depth of 50 - 100 cm in the stratum.

[0018] Further, the spacing between two adjacent fractured fissure zones is 1 - 5 m.

[0019] Further, the flood infiltration zone also includes at least sand-fixating shrubs planted in the fractured fissure zone.

[0020] Further, the sand blocking and diversion dike includes a shed-shaped sand barrier and a shed-shaped sand barrier fixing mechanism. The shed-shaped sand barrier includes a grid plate formed by weaving branches. The shed-shaped sand barrier fixing mechanism includes a stay wire and a fixing pin. One end of the stay wire is fixedly arranged at the upper end of the shed-shaped sand barrier, and the other end is fixedly arranged on the fixing pin, and the fixing pin is inserted into the ground surface.

[0021] Further, the height of the shed-shaped sand barrier is 1.5 - 4 m, and the span is 1.5 - 3 m.

[0022] Further, the grid plate includes a grid plate soaked in asphalt or surface carbonized.

[0023] Further, the diameter of the branches is 0.5 - 3 cm, and the length is 0.5 - 4 m.

[0024] Further, the sand - blocking diversion dike further includes plants planted in the shed - shaped sand - blocking barrier.

[0025] Further, a simple self - infiltration irrigation device is also arranged in the shed - shaped sand - blocking barrier, and the simple self - infiltration irrigation device is at least used to supply water to the plants.

[0026] Further, the wind - rolling sand - blocking ball is a hollow sphere formed by cross - weaving a plurality of branches.

[0027] Further, the triangular sand - blocking barrier includes two rectangular grid plates fixed at the lower end on the ground surface, and the upper ends of the two rectangular grid plates are hinged.

[0028] Further, the rectangular grid plate includes a plurality of branches cross - woven with each other.

[0029] Further, the diameter of the branches is 0.5 - 3 cm, and the length is 0.5 - 4 m.

[0030] Further, the triangular sand - blocking barrier further includes plants planted in the triangular sand - blocking barrier.

[0031] Further, a simple self - infiltration irrigation device is also arranged in the triangular sand - blocking barrier, and the simple self - infiltration irrigation device is at least used to supply water to the plants.

[0032] Further, the simple self - infiltration irrigation device includes a main pipe with one end closed, branch pipes, infiltration irrigation pipes and a water storage container. The main pipe and the branch pipes are connected in a through - connection manner. The internal space of the branch pipes and the water storage container is in through - connection. One end of the infiltration irrigation pipe is connected to the lower end of the water storage container, and the other end extends above the ground surface. The pipe wall of the infiltration irrigation pipe is of a sponge structure, filled with three - dimensional micropores. When the internal space of the water storage container is filled with water, the infiltration irrigation pipe is at least used to supply water to the plants.

[0033] The embodiment of the present invention also provides a construction method for a downward - infiltration type gobi flood control and sand prevention system for constructing the downward - infiltration type gobi flood control and sand prevention system, including:

[0034] Using a soil aerator to perform multi - point aeration construction on the gobi ground surface to generate a plurality of broken fracture zones in the gobi formation that can supply water for infiltration, and making the broken fracture zones at least extend from the gobi ground surface to the bottom of the hard clay layer, so as to form a flood control unit including a plurality of parallel - arranged flood downward - infiltration zones;

[0035] A sand-blocking and guiding unit, a wind-rolling sand-blocking unit, a sand-blocking barrier unit and a sand-fixing unit are sequentially arranged in the downwind direction of the flood control unit along the main wind direction, so as to form a sand and wind protection unit.

[0036] An embodiment of the present invention further provides a gobi flood control and sand and wind protection method, which is implemented based on the infiltration-type gobi flood control and sand and wind protection system, and the method includes:

[0037] A flood control unit and a sand and wind protection unit are sequentially arranged in the upwind direction of the protected object along the main wind direction, and plants are planted at least in the fractured fissure area of the flood infiltration zone, inside the shed-shaped sand-blocking barrier, the triangular sand-blocking barrier, and below the tent-shaped sand-fixing barrier;

[0038] The sand-blocking and guiding dike in the sand-blocking and guiding unit is used to block wind and accumulate sand to form a sand accumulation belt, so as to divert flood water and sand to both sides of the protected object;

[0039] The tent-shaped sand-fixing barrier in the sand-fixing unit is used to fix sand, so as to establish shrub sand dunes in the upwind direction of the protected object.

[0040] Compared with the prior art, the advantages of the present invention include:

[0041] 1. By means of multi-point aeration, the present invention causes fractures and fissures to appear in the formation, and the flood runoff can quickly infiltrate along these fissures to the deep bottom layer under the hard clay layer, where there is often a thick gravel layer, which has the functions of rapid infiltration and large water storage, and can effectively reduce the runoff and impact force of the flood. In addition, the hard clay layer plays a good role in sealing and water retention, and the formation fissures promote the infiltration of flood water, and also provide channels and oxygen for the plant roots to penetrate deep into the ground, which is beneficial to plant growth. Compared with various flood control measures such as blocking type (dams, flood control walls, sand barriers), diversion type (diversion channels), water storage type (reservoirs, wetlands, water storage ponds, flood detention areas), etc., only interval punching and aeration are required to complete the construction, which has the advantages of simple construction and low cost, and is suitable for the desert wide valley terrain with scattered and wide river channels.

[0042] 2. The present invention follows the concept of first weakening the upstream flood and then building a sand and wind protection system downstream. First, two flood control lines are built upstream by the flood control unit and the sand-blocking and guiding unit. First, infiltrate the flood water and weaken the water volume, and then divert the remaining flood water, so as to reduce the harm brought by the flood; second, the wind-rolling sand-blocking unit, the sand-blocking barrier unit, and the tent-shaped sand-fixing unit arranged in sequence in the downwind direction play the roles of sand blocking and sand fixing. Combining the upstream flood control with the downstream sand and wind protection measures forms an environment-friendly flood and sand comprehensive protection system suitable for desert wide valleys, alluvial fans, and dry river beds;

[0043] 3. The two groups of sand - blocking and flow - guiding units of the present invention are arranged mirror - symmetrically with the flood channel as the axis, and the two shed - shaped sand - blocking barriers are connected. As a result, the front end of the sand - accumulation belt formed through the natural sand - accumulation process forms a sharp corner, which breaks the invading flood or quicksand at the sharp corner and realizes flow - guiding along the extending direction of the shed - shaped sand - blocking barrier, ultimately ensuring that the flood or quicksand flows to both sides of the protection system.

[0044] 4. The shed - shaped sand - blocking barrier, triangular sand - blocking barrier, and tent - shaped sand - fixing barrier form a three - dimensional space sand - storage structure, with high sand - blocking and sand - fixing efficiency. They can all provide wind protection, shade, and moisture - retention effects for the plants growing at the bottom. As the plants grow, the structures of the sand - accumulation belt and shrub - covered sand dune formed by them will be more stable. Moreover, they are all integrated self - supporting structures. Only need to be placed on the sand surface, fixed to the ground surface with ground nails, and then connected with iron wires for each section to complete the layout. The foundation is stable and the construction is simple.

[0045] 5. The ground - contact surface of the wind - rolling sand - blocking ball is a small circular arc surface, which is easy to always maintain a rolling or shaking state under the action of multiple wind directions. Therefore, it is not easily buried by wind - blown sand, can long - term play the role of consuming wind energy and fixing quicksand, and can raise the sand surface elevation between the barriers, with a huge sand - blocking capacity.

[0046] 6. The simple self - infiltration irrigation device uses a fully - enclosed pipeline and can perform self - flowing irrigation. With used mineral water barrels as the main components, compared with the traditional drip irrigation and sprinkler irrigation technologies used in desert - area afforestation, it has the advantages of non - blocking, non - freezing, and low cost. Its extending direction can be flexibly arranged according to the terrain drop, without being restricted by the terrain, and is very suitable for the sparse and scattered large - area planting mode in desert areas. The buried - type airtight structure is not afraid of being buried by sand and has a long engineering life.

[0047] 7. All components of this system use branches as the main raw materials, which are environmentally friendly and pollution - free. There are no high requirements for the types, diameters, and lengths of the branches. Therefore, the materials are easily obtained, and they can all be mixed and woven into grid plates with the required porosity and various structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 FIG. is a schematic structural diagram of a sub - infiltration type gobi flood control and wind - sand protection system provided in a typical embodiment of the present invention;

[0049] Figure 2 FIG. is a schematic structural diagram of a sand - fixing unit of a sub - infiltration type gobi flood control and wind - sand protection system provided in a typical embodiment of the present invention;

[0050] Figure 3 FIG. is a schematic structural diagram of a simple self - infiltration irrigation device of a sub - infiltration type gobi flood control and wind - sand protection system provided in a typical embodiment of the present invention;

[0051] Figure 4It is a schematic structural diagram of a water storage container of an infiltration-type gobi flood control and sand prevention system provided in a typical embodiment of the present invention;

[0052] Figure 5 It is a schematic structural diagram of the woven branches of a shed-shaped sand barrier, a triangular sand barrier or a barrier body of an infiltration-type gobi flood control and sand prevention system provided in a typical embodiment of the present invention;

[0053] Figure 6 It is a schematic diagram of the position of a shed-shaped sand barrier of an infiltration-type gobi flood control and sand prevention system relative to the flood channel;

[0054] Figure 7 It is a schematic diagram of a tent-shaped sand fixation barrier of an infiltration-type gobi flood control and sand prevention system provided in Embodiment 2 of the present invention;

[0055] Figure 8 It is a schematic diagram of a tent-shaped sand fixation barrier of an infiltration-type gobi flood control and sand prevention system provided in Embodiment 3 of the present invention.

[0056] Explanation of reference numerals: 1. Sand blocking and diversion unit; 2. Wind-rolled sand blocking unit; 3. Sand barrier unit; 4. Sand fixation unit; 5. Shed-shaped sand barrier; 6. Tent-shaped sand fixation barrier; 7. Flood channel; 8. First plant unit; 9. First stay wire; 10. Sand blocking ball; 11. Sand accumulation surface; 12. Triangular sand barrier; 13. Second stay wire; 14. Barrier body; 15. Third stay wire; 16. Second plant unit; 17. Flood control unit; 18. Third plant unit; 19. Simple self-infiltration irrigation device; 20. Main pipe; 21. Branch pipe; 22. Infiltration irrigation pipe; 23. Water storage container; 24. Positioning rod; 25. Main wind direction; 27. Conical wet soil mass; 28. Branch; 29. Fourth plant unit. Detailed implementation manners

[0057] In view of the deficiencies in the prior art, the inventors of this case have proposed the technical solution of the present invention through long-term research and a large number of practices. The following will further explain the technical solution, its implementation process and principle, etc.

[0058] The energy of floods and the substances they carry is much higher than that of windblown sand, and can easily destroy the windblown sand protection system. In practical applications, it is necessary to first weaken the upstream floods, and then build a windblown sand protection system downstream to reduce the harm of windblown sand to the protected object. However, in reality, the windblown sand protection measures for facilities such as railways and highways are generally located at a certain distance upwind of the road. The flood control dikes or diversion dikes are generally adjacent to the road and connected to the water passing culverts of the road, so that the runoff can flow along the diversion dikes into the water passing culverts and then pass through the road to prevent the roadbed from being washed away. In this way, the lack of flood control measures upstream makes the windblown sand protection measures vulnerable to flood damage, resulting in the failure of the windblown sand protection measures. Especially in the wide valleys and alluvial fans of the Gobi, floods often overflow the river channels, forming broad water surfaces spreading everywhere, and the rapid water flow will cause serious damage to facilities such as the windblown sand protection system and the roadbed. Moreover, at present, for large-scale wind and photovoltaic power stations located in alluvial fans, wide valley corridors, and areas without flood control measures such as dikes upstream, the harm of Gobi floods they face is also becoming increasingly serious. That is to say, the protected objects of the present invention include, but are not limited to, the above-mentioned large-scale wind and photovoltaic power stations.

[0059] At present, the main methods for preventing and controlling floods in the Gobi area are as follows. First, there are engineering measures, such as building dikes, flood control walls, diversion channels, reservoirs, water storage ponds, flood detention areas, etc., which can store floods during the flood season and reduce the downstream flood pressure. Second, there are ecological measures, such as vegetation restoration, wetland construction, sand barrier construction, ecological slope protection, etc., to slow down the water flow speed and increase the water storage capacity of the soil, thereby reducing the flood damage. In addition, there is also a monitoring and early warning system to take corresponding flood control measures. In short, the prevention and control of floods in the Gobi area need to comprehensively consider engineering and ecological measures and formulate prevention and control plans according to local conditions. However, the current technical means cannot well integrate flood control and sand prevention into a system, and cannot enable the protected object to be free from both flood attacks and windblown sand attacks. Moreover, simply combining the existing flood protection technology and windblown sand protection technology cannot reasonably protect against floods and windblown sand.

[0060] Embodiment 1

[0061] As Figures 1-6As shown in the figure, it is an infiltration-type gobi flood control and sandstorm prevention system and its construction method for the first embodiment, including a flood control unit 17, a sand retention and diversion unit 1, a wind-rolled sand retention unit 2, a sand barrier unit 3, and a sand fixation unit 4 arranged in sequence along the main wind direction 25 (the main wind direction 25 is subject to the specific wind direction in the gobi strong wind area). The flood control unit 17 is responsible for increasing the flood infiltration of the compacted soil in the gobi strong wind area, and using the infiltrated flood to plant a third plant unit 18 on it to prevent the invasion of floods, forming a virtuous cycle; the sand retention and diversion unit 1 is responsible for blocking and accumulating sand and forming a tall sand accumulation belt for diversion to divert sand and floods; the wind-rolled sand retention unit 2 is responsible for preventing the formation of sand dunes or sand ridges to form a flat sand surface; the sand barrier unit 3 is responsible for reducing the wind speed and blocking sand grains along the main wind direction 25; the sand fixation unit 4 is responsible for fixing drifting sand; the above five parts combine the flood control technology in the upstream area with the sandstorm prevention system in the downstream to form an environmentally friendly flood and sand comprehensive protection system suitable for desert gobi valleys, alluvial fans, and dry riverbeds.

[0062] The sand retention and diversion unit 1, the wind-rolled sand retention unit 2, the sand barrier unit 3, and the sand fixation unit 4 are all arranged in a strip shape and are collectively called the sandstorm prevention unit. Each strip is parallel to each other and perpendicular to the main wind direction. A blank area is set between each strip; the flood control unit 17 and the sandstorm prevention unit are both located upwind of the protected object. In this case, the flood control unit 17 is located upwind of the sandstorm prevention unit.

[0063] The five parts included in the above infiltration-type gobi flood control and sandstorm prevention system are all arranged in parallel multiple strips in sequence along the downwind direction. The extension direction of each strip is perpendicular to the main wind direction 25. A blank area is set between each strip. The number of strips is 1 - 3, the width of each strip is the width of each measure itself, and the width of the blank area is 20 - 100 m.

[0064] Among them, the flood control unit 17 includes 2 - 8 parallel flood infiltration zones. The flood infiltration zones are perpendicular to the gobi flood channel 7 and include multiple fractured fissure zones formed in the gobi strata that can supply water infiltration. The fractured fissure zones extend at least from the gobi surface to the bottom of the hard clay layer; the width of the flood infiltration zones is 50 - 200 m; the length of the flood infiltration zones is greater than the width of the flood channel 7; the fractured fissure zones extend from the gobi surface to a depth of 50 - 100 cm in the strata; the spacing between adjacent two fractured fissure zones is 1 - 5 m; the flood infiltration zones also include at least sand-fixating shrubs planted in the fractured fissure zones.

[0065] The sandstorm prevention and control unit includes a sand blocking and diversion unit 1, a rolling sand blocking unit 2, a sand barrier unit 3, and a sand fixation unit 4 arranged in sequence along the main wind direction. The sand blocking and diversion unit 1 includes two sand blocking and diversion dikes. The length directions of the two sand blocking and diversion dikes intersect with the length direction of the flood channel 7 at an acute angle, and the two sand blocking and diversion dikes and the flood channel 7 are connected at the middle part of the flood channel 7 to form a triangular support structure that intersects obliquely with the flood flow direction. The rolling sand blocking unit 2 includes a plurality of rolling sand blocking balls 10 that can freely roll with the wind. The sand barrier unit 3 includes a plurality of triangular sand barriers arranged in parallel. The length direction of the triangular sand barrier is perpendicular to the main wind direction. The sand fixation unit 4 includes a plurality of tent-shaped sand barriers.

[0066] Specifically, the gobi flood control and sandstorm prevention and control system has two groups of sand blocking and diversion units 1, and the two groups of sand blocking and diversion units 1 are arranged in mirror image with the flood channel 7 as the axis. The sand blocking and diversion unit 1 includes at least two layers of shed-shaped sand barriers 5 arranged in parallel. The end face of the shed-shaped sand barrier 5 faces the main wind direction 25, and the shed-shaped sand barrier 5 includes a number of branches 28 woven crosswise with each other. The sand blocking and diversion unit 1 is at least used to form a tall sand accumulation belt for diversion at the upwind of the main wind direction 25. The two shed-shaped sand barriers 5 that are mirror-symmetrical are connected, and the included angle between the extending directions of the two connected shed-shaped sand barriers 5 and the downstream direction of the flood channel 7 is an acute angle, so as to form a triangular support structure that intersects obliquely with the flood flow direction.

[0067] It can be understood that as Figure 6 shown, the shed-shaped sand barriers 5 of the two groups of sand blocking and diversion units 1 in this embodiment are arranged in mirror image with the flood channel 7 as the axis, and the two groups of shed-shaped sand barriers 5 are connected, so that the front end of the sand accumulation belt for diversion formed by sand accumulation forms a sharp corner, forming a triangular support structure that intersects obliquely with the flood flow direction, breaking the invading flood or quicksand at the sharp corner, and realizing diversion along the extending direction of the shed-shaped sand barrier 5, and finally ensuring that the flood or quicksand flows to both sides of the gobi flood control and sandstorm prevention and control system of the present invention.

[0068] The branches 28 forming the shed-shaped sand barrier 5 are treated by soaking in asphalt or surface carbonization to improve the service life of the material. The overall height of the shed-shaped sand barrier 5 is 1.5 - 4m, and the distance between the two vertically arranged shed-shaped sand barriers 5 on both sides is 1.5 - 3m. The diameter of the branch 28 is 0.5 - 3cm, and the length of the branch 28 is 0.5 - 4m, where the branch 28 is a branch such as tamarisk, salix psammophila, caragana korshinskii, or hedysarum scoparium.

[0069] The sand-blocking and diversion unit 1 further includes a number of first plant units 8. The first plant units 8 are plants planted within the shed-shaped sand barriers 5 and are at least used to reinforce the shrub sand dunes for sand fixation. When a sand-accumulating belt for diversion is formed by sand accumulation between two adjacent shed-shaped sand barriers 5, it will provide a growth environment for the first plant units 8, enabling the first plant units 8 to grow and cover the sand-accumulating belt for diversion, and forming stable root systems inside the sand-accumulating belt for diversion, making the sand-accumulating belt for diversion more stable. Compared with a single-layer sand barrier, the sand-blocking and diversion unit 1 can block the airflow doubly, with a more significant effect of wind blocking and sand accumulation, and can quickly form a sand-accumulating belt at the bottom between each adjacent two shed-shaped sand barriers 5. As time goes by and the first plant units 8 at the bottom grow, the sand-blocking and diversion unit 1 will gradually be buried, and the sand accumulation height will increase to form a large sand-accumulating belt for diversion, using this large sand-accumulating belt for diversion to divert floods and sand to both sides of the protected object.

[0070] A shed-shaped sand barrier fixing mechanism is also fixedly arranged on the shed-shaped sand barrier 5. The shed-shaped sand barrier fixing mechanism includes a number of first stay steel wires 9, and the other ends of the first stay steel wires 9 are fixedly arranged on the ground surface through fixing fibers.

[0071] The height of the sand barrier unit 3 is adjustable. The sand barrier unit 3 includes two rectangular grid plates fixed at the lower end on the ground surface and a triangular sand barrier 12 arranged inside the rectangular grid plates. The upper ends of the two rectangular grid plates are hinged; a second stay steel wire 13 is fixedly connected to the hinged part at the upper ends of the two rectangular grid plates, and one end of the second stay steel wire 13 is fixedly arranged on the ground surface through a fixing fiber; the triangular sand barrier 12 includes a number of branches 28 woven crosswise with each other, and moreover, a fourth plant unit 29 is planted on the ground surface below the triangular sand barrier 12.

[0072] Among them, the branches 28 are branches 28 such as tamarisk, salix psammophila, caragana korshinskii, and hedysarum scoparium. These branches are woven into a triangular sand barrier 12 in longitude and latitude. The triangular sand barrier 12 is treated by soaking in asphalt or surface carbonization. The tops of two triangular sand barriers 12 are connected by wire binding, and the bottom is fixed to the ground with fixing pins, with a cross-section in a stable triangular support structure; the length of the triangular sand barrier 12 is 2 - 4m, and the height is 2 - 6m; the opening angle at the tops of the two rectangular grid plates is adjustable between 10 - 50°, so that the overall height of the sand barrier unit 3 is adjustable between 1.5 - 5m; the length of the fixing pin is 50 - 80cm; the diameter of the branch 28 is 0.5 - 3cm, the length of the branch 28 is 0.5 - 4m, and the porosity of the woven triangular sand barrier 12 is 40 - 70%.

[0073] The height of the sand barrier unit 3 is 1.5 - 5 meters. Calculated according to the protection distance being 20 times the height of the barrier body 14, the protection range on the leeward side of the sand barrier unit 3 is about 30 - 100 meters, basically covering the entire protection system in the downwind area. According to the wind speed, the angle of the top of the rectangular grid plate can be adjusted. When the angle is increased, the distance between the two triangular sand barriers 12 will increase and the height of the sand barrier unit 3 will decrease, which can play a better role in wind prevention and sand fixation, but the protection range will slightly decrease; when the angle is decreased, the distance between the two triangular sand barriers 12 will decrease and the height of the sand barrier unit 3 will increase, which can slightly weaken the wind prevention and sand fixation effect, but the protection range will increase. The angle can be changed according to the specific situation of the wind and sand during actual implementation. In addition, in windy areas, the angle of the top of the rectangular grid plate can be appropriately increased to enhance the stability of the foundation.

[0074] Multiple strips of the sand barrier unit 3 are arranged in parallel on the upwind side of the protected object to block and fix the sand and wind in the main wind direction. The specific length depends on the length of the protected object. The number of strips is 1 - 3, and the spacing is 20 - 50m.

[0075] The wind-rolling sand barrier unit 2 is used to deposit sand grains and form a flat sand surface between the sand diversion and blocking unit 1 and the sand barrier unit 3; the wind-rolling sand barrier unit 2 includes a number of sand-blocking balls 10. The sand-blocking balls 10 are hollow spheres formed by the cross-weaving of a number of branches 28, with a diameter of 50 - 100 cm, the diameter of the branches 28 is 0.5 - 3 cm, and the length of the branches 28 is 0.5 - 4 m. Among them, the branches 28 are branches such as tamarisk, sand willow, caragana, and hedysarum scoparium. The branch grid of the sand-blocking ball 10 is treated by soaking in asphalt or surface carbonization.

[0076] It should be noted that a number of sand-blocking balls 10 are arranged between the sand diversion and blocking unit 1 and the sand barrier unit 3 and can roll freely with the wind. The sand-blocking balls 10 themselves have the characteristics of covering the sand surface and not being buried themselves, which can reduce the wind speed on the sand surface, inhibit local sand blowing, and promote the deposition of sand grains between the sand diversion and blocking unit 1 and the sand barrier unit 3.

[0077] The sand fixation unit 4 includes a number of tent-shaped sand barriers 6 arranged in a triangular array on the ground surface. The inside or around the tent-shaped sand barriers 6 is used for rapid sand accumulation and forming shrub sand dunes for sand fixation. The tent-shaped sand barriers 6 are in a cover shape, and the cover opening of the tent-shaped sand barriers 6 is buckled on the ground surface. A number of tent-shaped sand barriers 6 are at least used to connect with each other in the downwind area of the main wind direction 25 to form shrub sand dunes for sand fixation; the tent-shaped sand barriers 6 include a barrier body 14 and a second plant unit 16. The second plant unit 16 is a plant planted inside the tent-shaped sand barrier. Specifically, the barrier body 14 includes a number of branches 28 that are cross-woven with each other. The barrier body 14 is in a cover shape, and the cover opening of the barrier body 14 is buckled on the ground surface. The second plant unit 16 is arranged on the ground surface inside the cover opening and is at least used to reinforce the shrub sand dune.

[0078] Preferably, a third guy wire 15 is fixedly arranged at the top of the tent-shaped sand fixation barrier 6, and one end of the third guy wire 15 is fixedly arranged on the ground surface through a fixing pin. The length of the fixing pin is 50 - 80 cm; the diameter of the branch 28 is 0.5 - 3 cm, the length of the branch 28 is 0.5 - 4 m, and the porosity of the barrier body 14 woven is 40 - 70%.

[0079] The tent-shaped sand fixation barrier 6 can quickly accumulate sand inside and around it, forming sand piles to wrap and bury the sand fixation barrier, gradually forming a vegetated and fixed shrub sand pile for sand fixation, and finally forming Figure 2 the sand accumulation surface 11 in [reference], and over time, due to the triangular layout structure of the tent-shaped sand fixation barrier 6, continuous and tall shrub sand piles can be formed after sand accumulation, playing a long-term sand fixation role at the upwind position closest to the protection system and reducing the sand and wind hazards suffered by the protected object.

[0080] Preferably, the surface of the branch 28 is treated by soaking in asphalt or carbonization;

[0081] Preferably, the branch 28 is any one of tamarisk, sand willow, caragana korshinskii, and hedysarum scoparium.

[0082] The flood control unit 17 is arranged upwind of the sand blocking and guiding unit 1, in the form of several independent strip-shaped areas, and arranged in parallel along the main wind direction 25. The flood control unit 17 includes a third plant unit 18 and an aeration unit. The third plant unit 18 is the psammophytic shrub planted in the fractured area. The aeration unit is used to maintain the hydrophobic and breathable property of the soil and improve the soil quality. The third plant unit 18 is arranged in the strip-shaped area and used to reduce the runoff and impact force of the flood. The energy of the flood and the substances it carries is much higher than that of the sand and wind, and it can easily damage the sand and wind protection system. To solve this problem, in practice, it is necessary to first weaken the upstream flood and then build a sand and wind protection system downstream, so as to weaken the hazards of the flood and sand and wind to the protected object.

[0083] The soil aerator used in the aeration unit inserts a device similar to a hollow air needle into the ground in the form of pile driving, and pumps a large amount of air into the bottom of the air needle with high pressure until the nearby soil loosens, reaching up to 1 meter underground at the deepest. Each time it is pressed, the compressed air in the machine will be delivered to the position at the top of the air needle. This technology can impact large and compacted soil into small pieces, making the soil more hydrophobic and breathable. After repeating this process several times, the soil will become loose and porous, which not only enhances the soil's drainage and desalination capabilities but also helps the growth of nearby plant roots. In actual operation, the aeration intensity can be adjusted according to the different depths and compactness of the soil to maintain the good hydrophobic and breathable state of the soil. This technology is arranged in parallel multiple strips upstream in the gobi, which can effectively promote the infiltration of the flood and weaken the flood hazard.

[0084] Due to the excessive compaction of the soil in the Gobi high-wind area, water cannot penetrate. Soil aeration can effectively solve this problem. The air needle connected to the air pump is 2 cm thick. Before reaching the inflation depth, workers control the air needle to penetrate the soil, with a depth of up to 1 meter. By continuously rotating to adjust the orientation and depth of the air needle, compressed air is sent into the tip of the air needle each time, resulting in the rapid expansion and dispersion of compressed air at different depths and orientations underground. This sudden force has a great impact on the soil, and the compacted soil will produce a large number of reticular cracks and break into small pieces, similar to subcutaneous injection. When the gas is forced into the ground, the ground will bulge. Utilizing the instantaneous explosive force of high-pressure gas, the soil is loosened, making the soil more hydrophobic and breathable, and more convenient for the healthy growth of the roots of plant units in the later stage. It has powerful functions and strong pertinence. In addition to being able to loosen the deeper soil, after aeration, the equipment can be switched to the conveying mode, and humic acid, drugs and nutrients can be directly poured into the storage tank of the equipment and transported to the vicinity of the plant roots at a specific depth in the soil, improving the soil pH, promoting soil microbial activities, accelerating the dispersion of organic matter, thereby improving saline-alkali soil, increasing fertilizer utilization rate, and enhancing the ability of plants to absorb water and nutrients. Therefore, this technology can also promote the root growth of artificial vegetation and improve the surrounding soil and environment.

[0085] It should be noted that in this embodiment, through the multi-point aeration method, fracture cracks appear in the formation, and the surface runoff formed by floods can quickly infiltrate along these cracks to the deep bottom layer under the hard clay layer. There is often a thick alluvial-proluvial gravel layer distributed here, which has the functions of rapid infiltration and large-scale water storage, can quickly infiltrate a large amount of floods, and effectively reduce the runoff and impact force of floods. It is a reliable flood prevention technology, especially suitable for Gobi desert areas where there are generally aquicludes in the formation.

[0086] In addition, the hard clay layer plays a very good moisture retention role, can keep the water stored in its bottom formation during floods from flowing away for a long time, and supply the growth of the deep roots of plants. Therefore, this embodiment has the functions of underground water storage and water retention, and can promote the growth of plants in the infiltration zone.

[0087] At the same time, the cracks generated in the hard clay layer are distributed in a criss-cross three-dimensional space underground, providing channels for plant roots to penetrate deep underground, which is beneficial for plant roots to absorb the water stored deep underground. These cracks have the characteristic of permanence and will not heal once generated, providing a long-term infiltration channel for water and helping to weaken floods.

[0088] The flood and sand protection system of the photovoltaic power station in the Gobi strong wind area of this embodiment further includes a simple self-percolating irrigation device 19. The simple self-percolating irrigation device 19 is buried in a strip area and is respectively connected to the first plant unit 8, the second plant unit 16, and the third plant unit 18. The simple self-percolating irrigation device 19 is used to supply water to the first plant unit 8, the second plant unit 16, and the third plant unit 18.

[0089] The simple self-percolating irrigation device 19 is buried in the soil. The simple self-percolating irrigation device 19 includes a main pipe 20 with one end closed, a branch pipe 21, a percolating irrigation pipe 22, and a water storage container 23. The main pipe 20 and the branch pipe 21 are connected through. The internal spaces of the branch pipe 21 and the water storage container 23 are in communication. One end of the percolating irrigation pipe 22 is connected to the lower end of the water storage container 23, and the other end extends above the ground surface. A number of percolating irrigation ports are provided on the pipe wall of the percolating irrigation pipe 22. When the internal space of the water storage container 23 is filled with water, the percolating irrigation pipe 22 is at least used to supply water to the first plant unit 8, the second plant unit 16, and the third plant unit 18; the axial direction of the percolating irrigation pipe 22 is vertically arranged; the simple self-percolating irrigation device 19 further includes a positioning rod 24, and the positioning rod 24 is detachably connected to the percolating irrigation pipe 22.

[0090] The main pipe 20 of the simple self-percolating irrigation device 19 extends in the east-west direction. The middle part of the branch pipe 21 is vertically connected in series to the main pipe 20 using a double-pass joint to form an irrigation belt perpendicular to the north wind, that is, in the east-west direction. One end of the main pipe 20 is a union joint, and the other end is blocked with a plug. The water storage container 23 is an upright buried discarded mineral water bucket with a volume of 5 - 30 liters, and only the bucket lid is exposed on the ground surface. The middle of the bottle cap is connected to the branch pipe 21 through a double-pass. One end of the percolating irrigation pipe 22 is connected to the center of the bottom of the bucket, and the other end is exposed 5 - 10 cm above the ground surface, and is blocked with a plug and then tied to the lower section of the positioning rod 24. More specifically, both the main pipe 20 and the branch pipe 21 are rubber or plastic hoses. The diameter of the main pipe 20 is 2 - 5 cm, the diameter of the branch pipe 21 is 0.5 - 2 cm, and the spacing of the branch pipes 21 is 1 - 5 m. The percolating irrigation pipe 22 is a non-pressure self-flow type, and the pipe wall is covered with percolating irrigation ports. The percolating irrigation ports are of a microporous structure with a diameter of 0.5 - 2 cm

[0091] The working process and effect of the simple self-percolating irrigation device 19 are as follows: Connect the double-pass quick-connect joint at one end of the main pipe 20 to the water outlet of the water truck water pipe. When it is found that the percolating irrigation pipe 22 exposed on the ground surface at the other end of the main pipe 20 starts to seep water or the ground surface is wet, it means that all the water buckets are filled with water, and the connection with the water truck can be disconnected and the irrigation operation can be switched to the joint position of the next row of the main pipe 20. Pressurized water injection can be used to increase the irrigation operation speed. Moreover, since the simple self-percolating irrigation device 19 uses a fully enclosed pipeline, can automatically leak, and uses discarded mineral water buckets as the main components, compared with the traditional drip irrigation and sprinkler irrigation technologies used in Gobi area afforestation, it has the advantages of not being blocked, not freezing, and low cost, and is very suitable for the large-area sparse and scattered planting requirements in the Gobi area.

[0092] The vertically arranged sub-irrigation pipe 22 can form a conical wet soil mass 27 underground through irrigation, enabling water to penetrate the topsoil and soil layers at different depths underground. It can supply water to the roots at different depths during the entire growth cycle of the seedlings and adult plants in the plant unit, especially the deep soil layer. Since sand and wind may bury the part of the sub-irrigation pipe 22 exposed on the ground surface, in this case, the top positioning rod 24 can accurately locate the position of the sub-irrigation pipe 22, facilitating the accurate positioning of the seedling planting points and the subsequent maintenance of the sub-irrigation pipe 22.

[0093] And except that the wall of the sub-irrigation pipe 22 located underground is densely covered with micropores, the rest of the components of the simple self-sub-irrigation device 19 are all airtight structures, which will not get blocked and are not afraid of being buried by sand; the sub-irrigation pipe 22 is a buried air-permeable structure, so the entire irrigation device can use a water pump to pressurize and inject water, increasing the irrigation efficiency.

[0094] The simple self-sub-irrigation device 19 in this embodiment has low requirements for the quality of the water source. It can utilize domestic sewage, which can be directly poured into the water bucket after simple filtration. The subsequent irrigation process is completely self-flowing and unattended; it does not require electricity, saves water and labor, and the water can reach the entire soil layer covered by the plant roots, adapting to plants in different growth periods; the wall of the sub-irrigation pipe 22 is a three-dimensional porous structure, which will not get blocked, will not freeze in winter, and has high irrigation efficiency. Due to its buried airtight structure, it has a long engineering life.

[0095] Preferably, the first plant unit 8, the second plant unit 16, and the third plant unit 18 are any one of nitraria tangutorum, haloxylon ammodendron, calligonum mongolicum, and sarcozygium xanthoxylon, and are sand-burial resistant shrubs. By accumulating sand, it just creates conditions for the growth of the first plant unit 8, the second plant unit 16, and the third plant unit 18, enabling the first plant unit 8, the second plant unit 16, and the third plant unit 18 to grow inside the accumulated sand and have a fixing effect on the accumulated sand.

[0096] Embodiment 2

[0097] The difference between Embodiment 2 and Embodiment 1 is that the tent-shaped sand fixation barrier 6 includes a bottom ring, side support bars, a mesh surface, and the second plant unit 16. The mesh surface is in a lid shape and is an HDPE mesh or a PLA mesh. The bottom ring can be any one of a circle, a square, and a pentagon, and is arranged around the lid opening of the mesh surface. The bottom ring is fixedly attached to the ground surface. The top ring is arranged around the top end of the mesh surface. And a number of parallel side support bars are connected between the top center position and the bottom ring to form a support. The second plant unit 16 is arranged on the ground surface inside the bottom ring and is at least used to reinforce the shrub sand mound for sand fixation. The implementation method of Embodiment 2 is: after the mesh surface is edge-locked, steel wires are threaded through to form a cone with a contracted top. Compared with Embodiment 1, Embodiment 2 can play a role in wind prevention and sand fixation in the early stage. After the sand barrier is filled with flowing sand to form a shrub sand mound in the later stage, it can play a long-term and continuous sand fixation role.

[0098] Embodiment 3

[0099] The tent-shaped sand fixation barrier 6 includes a flat-top conical structure made of red willow or sand willow branches. The top ring and the bottom ring can be any one of circular, square, and pentagonal shapes. The top and bottom of the tent-shaped sand fixation barrier 6 are hollowed out, with a top ring and a bottom ring. And the tent-shaped sand fixation barriers 6 are all laid upside down on the ground surface, that is, the bottom ring of the tent-shaped sand fixation barrier 6 is set close to the ground, and an n-shaped iron wire is used to fix the bottom ring on the ground surface. Compared with Embodiment 1, the top of the tent-shaped sand fixation barrier in Embodiment 3 is hollowed out, making it easier for the sand grains carried in the wind-sand flow to enter it, and the early sand fixation effect is stronger. After the sand barrier is filled with flowing sand to form a shrub sand dune in the later stage, it can play a long-term and continuous sand fixation role.

[0100] It should be understood that the above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. An infiltration-type gobi flood control and sandstorm prevention system, characterized in that It includes a flood control unit and a sand and wind protection unit arranged in sequence along the main wind direction; Among them, the flood control unit includes a plurality of flood infiltration zones arranged in parallel. The flood infiltration zones are perpendicular to the gobi flood channel and include a plurality of fractured fissure zones formed in the gobi stratum that can supply water for infiltration. The fractured fissure zones at least extend from the gobi surface to the bottom of the hard clay layer; The sand and wind protection unit includes a sand blocking and diversion unit, a wind-rolling sand blocking unit, a sand barrier unit, and a sand fixation unit arranged in sequence along the main wind direction. The sand blocking and diversion unit includes two sand blocking and diversion dikes. The length directions of the two sand blocking and diversion dikes are both arranged at an acute angle to the length direction of the flood channel, and the two sand blocking and diversion dikes and the flood channel are connected at the middle part of the flood channel to form a triangular support structure that intersects obliquely with the flood flow direction. The wind-rolling sand blocking unit includes a plurality of wind-rolling sand blocking balls that can freely roll with the wind. The sand barrier unit includes a plurality of triangular sand barriers arranged in parallel. The length direction of the triangular sand barriers is perpendicular to the main wind direction. The sand fixation unit includes a plurality of tent-shaped sand fixation barriers.

2. The infiltration type gobi flood control and sand and wind protection system according to claim 1, characterized in that, The sand blocking and diversion unit, the wind-rolling sand blocking unit, the sand barrier unit, and the sand fixation unit are all arranged in strip shapes. Each strip is parallel to each other and perpendicular to the main wind direction. A blank area is arranged between each strip; And / or, the width of the blank area is 20 - 100m.

3. The infiltration type gobi flood control and sand and wind protection system according to claim 1, characterized in that, Both the flood control unit and the sand and wind protection unit are located on the upwind side of the protected object.

4. The infiltration type gobi flood control and sand and wind protection system according to claim 1, characterized in that, The flood control unit includes 2 - 8 flood infiltration zones arranged in parallel; And / or, the spacing between two adjacent flood infiltration zones is 20 - 100m And / or, the width of the flood infiltration zone is 50 - 200m; And / or, the fractured fissure zone extends from the gobi surface to a depth of 50 - 100cm in the stratum; And / or, the spacing between two adjacent fractured fissure zones is 1 - 5m; And / or, the flood infiltration zone also includes at least sand-fixating shrubs planted in the fractured fissure zone.

5. The infiltration type gobi flood control and sand and wind protection system according to claim 1, characterized in that, The sand blocking and diversion dike includes a shed-shaped sand barrier and a shed-shaped sand barrier fixing mechanism. The shed-shaped sand barrier includes a grid plate formed by weaving branches. The shed-shaped sand barrier fixing mechanism includes a stay wire and a fixing pin. One end of the stay wire is fixedly arranged at the upper end of the shed-shaped sand barrier, and the other end is fixedly arranged on the fixing pin, and the fixing pin is inserted into the ground surface.

6. The infiltration type gobi flood control and sand and wind protection system according to claim 5, characterized in that, The height of the shed-shaped sand barrier is 1.5 - 4m, and the span is 1.5 - 3m; And / or, the grid plate includes a grid plate soaked in asphalt or surface carbonized; And / or, the diameter of the branch is 0.5 - 3 cm and the length is 0.5 - 4 m; And / or, the sand - blocking and diversion dike further includes plants planted within the shed - shaped sand - blocking barrier; And / or, a simple self - infiltration irrigation device is further arranged within the shed - shaped sand - blocking barrier, and the simple self - infiltration irrigation device is at least used for supplying water to the plants.

7. The infiltration - type gobi flood control and sand - storm prevention system according to claim 5, wherein The wind - rolling sand - blocking ball is a hollow sphere formed by cross - weaving a plurality of branches; And / or, the triangular sand - blocking barrier includes two rectangular grille plates with the lower ends fixed on the ground surface, and the upper ends of the two rectangular grille plates are hinged; And / or, the rectangular grille plate includes a plurality of branches cross - woven with each other; And / or, the diameter of the branch is 0.5 - 3 cm and the length is 0.5 - 4 m; And / or, the triangular sand - blocking barrier further includes plants planted within the triangular sand - blocking barrier; And / or, a simple self - infiltration irrigation device is further arranged within the triangular sand - blocking barrier, and the simple self - infiltration irrigation device is at least used for supplying water to the plants.

8. The infiltration - type gobi flood control and sand - storm prevention system according to claim 6, wherein The simple self - infiltration irrigation device includes a main pipe with one end closed, branch pipes, infiltration irrigation pipes and a water storage container. The main pipe and the branch pipes are connected in a through - connection manner. The internal spaces of the branch pipes and the water storage container are in through - connection. One end of the infiltration irrigation pipe is communicated with the lower end of the water storage container, and the other end extends above the ground surface. The pipe wall of the infiltration irrigation pipe is in a sponge structure and is filled with three - dimensional micropores. When the internal space of the water storage container is filled with water, the infiltration irrigation pipe is at least used for supplying water to the plants.

9. A construction method of an infiltration-type Gobi flood control and sandstorm prevention system for constructing the infiltration-type Gobi flood control and sandstorm prevention system according to any one of claims 1 to 18, characterized in that, Comprising: Using a soil aerator to perform multi - point aeration construction on the gobi ground surface to generate a plurality of fractured fissure areas that can supply water for infiltration within the gobi formation, and making the fractured fissure areas at least extend from the gobi surface to the bottom of the hard clay layer, thereby forming a flood control unit including a plurality of parallel - arranged flood infiltration zones; Sequentially arranging a sand - blocking and diversion unit, a wind - rolling sand - blocking unit, a sand - blocking barrier unit and a sand - fixation unit in the downwind direction of the flood control unit along the main wind direction, thereby forming a sand - storm prevention unit.

10. A method for treating Gobi floods and preventing wind and sand, characterized in that, The method is implemented based on the infiltration - type gobi flood control and sand - storm prevention system according to any one of 1 - 8, and the method includes: Sequentially arranging a flood control unit and a sand - storm prevention unit along the main wind direction on the upwind side of the protected object, and planting plants at least in the fractured fissure areas of the flood infiltration zones, inside the shed - shaped sand - blocking barrier, the triangular sand - blocking barrier, and below the tent - shaped sand - fixation barrier; Using the sand - blocking and diversion dike within the sand - blocking and diversion unit to block wind and accumulate sand to form a sand - accumulation zone, so as to divert flood water and sand to both sides of the protected object; Using the tent - shaped sand - fixation barrier within the sand - fixation unit to fix sand, thereby establishing a shrub - covered sand dune on the upwind side of the protected object.

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