Combined guide groove water retention, wind prevention and sand fixation mulching film and construction method thereof
By combining water-retaining, wind-proof, and sand-fixing mulch with tree and shrub planting, the problems of sparse vegetation and water shortage in desert and Gobi areas have been solved, resulting in improved ecological environment and enhanced soil water retention capacity.
Patent Information
- Application Number
- CN202511062321.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2025-12-05
AI Technical Summary
The desert and Gobi regions are characterized by sparse vegetation, strong winds, dryness, frequent sandstorms, low annual precipitation but high evaporation, leading to unstable ecosystems and water shortages.
The combined drainage channel water-retaining, windproof, and sand-fixing mulch film includes a double-layer mulch film design and a drainage channel structure. The drainage channel collects groundwater and rainwater, and drip-irrigates the roots of plants in a targeted manner. Combined with the planting of trees and shrubs, it enhances the soil's water retention capacity and prevents wind and sand erosion.
It effectively restores desert vegetation, improves the ecological environment, reduces dependence on irrigation water, reduces groundwater evaporation, enhances vegetation's ability to block wind, promotes deep root development, and increases soil organic matter content.
Smart Images
Figure CN121066136A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of vegetation restoration, and in particular to a combined guide groove water-retaining wind-preventing sand-fixing mulch film and a construction method thereof. BACKGROUND
[0002] Desert and Gobi regions are facing severe ecological degradation problems, including land desertification, sparse vegetation, and reduced biodiversity. These phenomena not only threaten the stability of the ecosystem, but also pose potential risks to regional water resources and food security.
[0003] Desert and Gobi environments are typically windy, dry, and prone to sandstorms, with an average annual precipitation of about 180-200 mm, but an average annual evaporation of about 2600-2800 mm, which poses a great obstacle to plant growth. Therefore, it is particularly important to develop effective vegetation restoration techniques. SUMMARY
[0004] To address the problems of insufficient vegetation, wind and sand prevention, and water scarcity in desert regions, the present application provides a combined guide groove water-retaining wind-preventing sand-fixing mulch film and a construction method thereof.
[0005] In a first aspect, the present application provides a combined guide groove water-retaining wind-preventing sand-fixing mulch film, comprising a mulch unit, the mulch unit comprising a surface film, a bottom film arranged below the surface film, a guide groove arranged on the top surface of the bottom film, the middle part of the guide groove having a lower elevation than the two sides, the middle part of the guide groove forming a water flow channel, and a ventilation hole arranged on the side of the guide groove.
[0006] By adopting the above technical solution, the mulch film is designed in a combined and assembled manner, which is flexible in transportation and recycling and suitable for various complex terrains, facilitating large-area construction. The mulch film is designed in a double-layer structure, the surface film is tightly sealed and not easy to evaporate, and the bottom film collects and transports condensed water through the guide groove. By covering the mulch film with water accumulation function and planting trees and shrubs, the desert vegetation can be effectively restored, the desert ecology can be improved, the soil water retention capacity can be increased, the underground water and rainwater can be fully collected and utilized, the dependence on irrigation water can be reduced, and the effects of wind and sand prevention and ecological environment change can be achieved.
[0007] Preferably, one corner of the mulch unit is provided with a gap for accommodation, and a plurality of guide grooves are arranged radially around the gap for accommodation.
[0008] By adopting the above technical solution, the gap for accommodation is used for planting trees, and the water in the guide groove flows towards the gap for accommodation, making the water flow directionally to the root of the plant for directional drip irrigation operation, so as to improve the soil water retention capacity and promote the development of root system and increase the soil organic matter content.
[0009] Preferably, the surface film and the bottom film are provided with downwardly extending lower folded edges around the periphery.
[0010] By adopting the technical scheme, the lower folded edge film is used to lock water and avoid evaporation of surface water.
[0011] Preferably, the lower folded edge film bottom extends outward to form a flat folding presser foot.
[0012] By adopting the technical scheme, the flat folding presser foot further improves the performance of locking water and avoiding evaporation of surface water, and the mulch film can be fixed by pressing on the flat folding presser foot.
[0013] Preferably, a soil pressing fixing strip is arranged outside the lower folded edge film, and the soil pressing fixing strip presses on the top of the flat folding presser foot.
[0014] By adopting the technical scheme, the soil pressing fixing strip is used to press the flat folding presser foot to prevent the mulch film from being blown over by strong wind and avoid economic loss.
[0015] Preferably, the diversion groove is arranged in a downhill shape.
[0016] By adopting the technical scheme, the flow direction of water is facilitated.
[0017] Preferably, the mulch film unit is made of recycled plastic.
[0018] By adopting the technical scheme, the manufacturing cost is reduced, and resources are saved.
[0019] In a second aspect, the application provides a construction method of the combined diversion groove water-retaining wind-preventing sand-fixing mulch film, comprising the following steps: S1, planting trees, specifically comprising: planting trees according to a matrix layout, and using machines or manual labor to trim and shape the roots and the surrounding of the trees, with the roots being lower than the surrounding; S2, constructing the combined diversion groove water-retaining wind-preventing sand-fixing mulch film, specifically comprising: digging deep around the trees and laying the mulch film units, with every four mulch film units forming a group, the gap being towards the trees, the trees being located in the circular area formed by the four gaps, and the placing angle of the mulch film units being adjusted adaptively according to the slope of the diversion groove, then installing the soil pressing fixing strip, and finally covering the surface of the soil pressing fixing strip with sand; S3, planting shrubs, specifically comprising: when undergrowth shrub vegetation is planted, a gap is reserved between every group of mulch film units for planting shrubs, and after the shrubs are planted, the reserved gap is filled with nearby soil to complete the construction; S4, removing the mulch film after the maintenance period, specifically comprising: after the trees and shrubs are maintained for the required period, the mulch film can be gradually removed, and the trees and shrubs gradually adapt to the desert environment lacking sufficient water and nutrients.
[0020] Preferably, in S2, the mulch film units are laid after digging 300mm deep around the trees.
[0021] Preferably, 300-500mm wide gaps are reserved between each group of mulch units in S3. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 is a schematic view of the combined guide groove water-retaining wind-preventing sand-fixing mulch after construction of an embodiment of the present application.
[0023] Figure 2 is a top view of the combined guide groove water-retaining wind-preventing sand-fixing mulch after assembly of an embodiment of the present application.
[0024] Figure 3 is Figure 2 a top view of the mulch unit in S2.
[0025] Figure 4 is Figure 3 a schematic view of the internal structure of the mulch unit in S2.
[0026] Figure 5 is Figure 3 a schematic view of the cross-sectional structure of the mulch unit in S2.
[0027] Reference signs: 1, surface film; 2, bottom film; 20, flow guide groove; 21, air vent; 3, accommodation notch; 4, lower folded edge film; 40, flat folded presser foot; 5, soil pressing and fixing strip. DETAILED DESCRIPTION
[0028] The present application will be further described in detail below. Figures 1-5
[0029] An embodiment of the present application discloses a combined guide groove water-retaining wind-preventing sand-fixing mulch and a construction method thereof.
[0030] Referring to Figure 1 and Figure 2 , the combined guide groove water-retaining wind-preventing sand-fixing mulch is arranged in groups, each group including four mulch units, the mulch units as a whole being rectangular, the main body can be made of low-cost recycled plastic, such as food waste plastic bags, old clothes of chemical fiber, etc. recycled and reprocessed materials, and the color is mainly white; the four mulch units of each group are spliced in a matrix manner, the center position of each group of mulch units is used for planting trees, and a gap for planting shrubs is left between adjacent two groups of mulch units.
[0031] Referring to Figures 3-5 The ground film unit comprises a surface film 1, a bottom film 2 fixed to the bottom surface of the surface film 1, and a quarter-circular accommodation gap 3 arranged at a corner of the ground film unit, wherein four ground film units are spliced together to form a complete circular area, and the circular area is used for planting trees.
[0032] The cross section of the flow guide groove 20 is arc-shaped, the arc-shaped opening faces upward, the elevation of the middle part of the flow guide groove 20 is lower than the elevations of the two sides, a water flow channel is formed in the middle part of the flow guide groove 20, and a plurality of air vents 21 are uniformly arranged on the top of the two sides of the flow guide groove 20, wherein the moisture in the underground sand can rise through the air vents 21 and adhere to the bottom surface of the surface film 1, and the condensed water droplets fall into the flow guide groove 20 and flow to the accommodation gap 3 through the water flow channel.
[0033] The surface film 1 and the bottom film 2 are provided with downwardly-extending lower folded edges 4, the lower folded edges 4 are used for locking water and preventing evaporation of surface water, the bottom edges of the lower folded edges 4 extend horizontally outward to form flat folded pressing feet 40, the flat folded pressing feet 40 are provided with earth-pressing fixing strips 5 placed on the top surfaces of the flat folded pressing feet 40, the earth-pressing fixing strips 5 are used for pressing the flat folded pressing feet 40 to prevent the ground film from being blown over by strong winds and to avoid economic losses, and the earth-pressing fixing strips 5 in the embodiment are in the form of rectangular frames.
[0034] The construction method of the combined flow guide groove water-retaining wind-preventing sand-fixing ground film comprises the following steps: S1, planting trees, specifically comprising: planting trees according to a matrix layout, and using machines or manual labor to trim the roots and the surrounding of the trees, wherein the roots of the trees are lower than the surrounding, so as to facilitate the collection of rainwater seeping into the ground.
[0035] S2, constructing the combined flow guide groove water-retaining wind-preventing sand-fixing ground film, specifically comprising: digging 300mm deep around the trees and paving the ground film unit, four ground film units form a group, the accommodation gap 3 faces the trees, the trees are located in the circular area formed by the four accommodation gaps 3, the angle of the ground film unit is adjusted according to the slope adaptability of the flow guide groove 20, then the earth-pressing fixing strip 5 is installed, and finally the sand is covered on the surface of the earth-pressing fixing strip 5.
[0036] S3, planting shrubs, specifically comprising: when undergrowth shrub vegetation is planted, a gap with a width of 300-500mm is reserved between each group of ground film units for planting shrubs, and the gap is filled with soil after the shrubs are planted to complete the construction.
[0037] S4, after the maintenance period, the mulch film is removed, specifically, the mulch film is gradually removed after one to two years of arbor and shrub maintenance period, and the arbor and shrub gradually adapt to the desert environment lacking sufficient water and nutrients.
[0038] The mulch film in the embodiment of the present application has the characteristics of high strength, aging resistance, good sealing performance, etc., which can not only reduce the damage of direct sunlight to the desert plants, but also help the uniform distribution of water through the penetration and transpiration effect, while blocking the evaporation of underground water, achieving the effect of saving water, drought resistance and sand fixation.
[0039] The mulch film is designed in a combined and assembled manner, and is flexible in transportation and recycling operation, and is suitable for various complex terrains and facilitates large-area construction; the shape of the mulch film is mainly square and rectangular, which is consistent with the ventilation and lighting layout of arbor and shrub planting; and the color of the mulch film is mainly white, avoiding the use of black and other dark colors to absorb heat, which can damage the root of the plant and reduce the survival rate of the plant.
[0040] The mulch film is designed in a double-layer manner, the surface film 1 is tightly plastic sealed and not easy to evaporate, and the bottom film 2 collects the condensed water through the flow guide groove 20 to make the water flow to the plant roots in a directional manner to achieve directional drip irrigation operation, so as to improve the soil water retention capacity and promote the development of root system, and increase the soil organic matter content.
[0041] The arbor and shrub with the adaptability to the desert environment are selected as the main vegetation, which has a fast growth rate, a deep root system and a strong wind resistance, can effectively fix sand and maintain soil structure, and can provide oxygen and improve air quality, and lay a foundation for subsequent agricultural development.
[0042] In summary, by covering the mulch film with water storage function and planting arbor and shrub, the desert vegetation can be effectively restored, the desert ecology can be improved, the water retention capacity of the soil can be increased, the underground water and rainwater can be fully collected and utilized, the dependence on irrigation water can be reduced, and the effects of wind prevention, sand fixation and ecological environment change can be achieved.
[0043] Taking the Kashi region of Xinjiang as an example, the mulch film system can effectively reduce the damage of sand dust to vegetation, and at the same time, enhance the shielding ability of vegetation to wind, the evaporation amount of underground water is reduced from 2600mm-2800mm to 260mm-280mm, and the water evaporation amount of the land after the application of the mulch film is only 10% of the natural evaporation amount, which significantly solves the problem of water resource shortage such as drought and little rain in Xinjiang region, and the technology can be widely used in the wind prevention, sand control, landscaping and crop planting in arid desert and gobi regions, and provides positive technical support for the environmental improvement in arid regions.
[0044] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.
Claims
1. A combined guide channel water-retaining, windproof, and sand-fixing mulch film, characterized in that: The utility model provides a kind of combined guide groove water-retaining sand-fixing mulch, including mulch unit, the mulch unit includes surface film (1), bottom film (2) is arranged below surface film (1), and the top surface of bottom film (2) is provided with guide groove (20), the elevation of the middle part of guide groove (20) is lower than the elevation of its two sides, and the middle part of guide groove (20) forms water flow passage, and the side of guide groove (20) is provided with air hole (21).
2. The combined guide groove water-retention wind-prevention sand-fixing geomembrane according to claim 1, characterized in that: One corner of the mulch unit is provided with a clearance gap (3), and a plurality of guide grooves (20) are arranged radially around the clearance gap (3).
3. The combined guide groove water-retention wind-prevention sand-fixing geomembrane according to claim 1, characterized in that: The surface film (1) and the bottom film (2) are provided with downwardly extending lower edge film (4) around them.
4. The combined guide groove water-retention wind-prevention sand-fixing geomembrane according to claim 3, characterized in that: The bottom edge of the lower edge film (4) extends outwardly to form a flat folding presser foot (40).
5. The combined guide groove water-retention wind-prevention sand-fixing geomembrane according to claim 4, characterized in that: The outer side of the lower edge film (4) is provided with a soil pressing and fixing strip (5), which presses on the top of the flat folding presser foot (40).
6. The combined guide groove water-retention wind-prevention sand-fixing geomembrane according to claim 1, characterized in that: The guide groove (20) is arranged in a downhill manner.
7. The combined guide groove water-retention wind-prevention sand-fixing geomembrane according to claim 1, characterized in that: The mulch unit is made of recycled plastic.
8. The method for constructing the combined guide groove water-retention wind-prevention sand-fixation mulching film according to any one of claims 1-7, characterized in that, The method comprises the following steps: S1, planting trees, specifically including: planting trees according to a matrix layout, and using machinery or manual labor to trim and shape the roots and surrounding areas of the trees, with the roots being lower than the surrounding areas; S2, constructing combined guide groove water-retaining sand-fixing mulch, specifically including: digging deep around the trees and laying mulch units, with four mulch units forming a group, the clearance gap (3) facing the trees, the trees being located within the circular area formed by the four clearance gaps (3), the angle of the mulch units being adjusted according to the slope of the guide groove (20), then installing the soil pressing and fixing strip (5), and finally covering the surface of the soil pressing and fixing strip (5) with sand; S3, planting shrubs, specifically including: when undergrowth is planted with shrub vegetation, a gap is reserved between each group of mulch units for planting shrubs, and after the shrubs are planted, the gap is filled with soil taken from nearby to complete the construction; S4, removing the mulch after the maintenance period is reached, specifically including: after the trees and shrubs are maintained for the required period, the mulch can be gradually removed, and the trees and shrubs gradually adapt to the desert environment lacking sufficient water and nutrients.
9. The method of construction according to claim 8, wherein: In S2, the mulch units are laid after digging deep 300mm around the trees.
10. The method of construction of claim 8, wherein: In S3, a gap of 300-500mm wide is reserved between each group of mulch units.