Vegetation bags, artificial shrub sand piles, sand blocking and fixing belts, and construction methods and applications thereof

Abstract

The present invention discloses a vegetation bag, an artificial shrub sand pile, a sand-blocking and sand-fixing belt, and a construction method and application thereof. The method for establishing a shrub sand pile sand-blocking and sand-fixing belt based on the vegetation bag comprises the following steps: taking soil on site and piling it into a conical soil pile; neatly stacking a plurality of vegetation bags on the surface of the conical soil pile along the contour line; planting sand-fixing shrubs in each vegetation bag to form an artificial shrub sand pile; arranging a plurality of the artificial shrub sand piles in a herringbone shape in multiple rows to form a sand-blocking and sand-fixing belt. The method for establishing a sand-blocking and sand-fixing belt based on the vegetation bag of the present invention shortens the formation process of the shrub sand pile from several years to several decades in nature to one year. At the same time, because the shrub sand pile has excellent water storage and conservation characteristics, the shrub sand accumulation sand belt established by combining artificial and natural methods realizes sustainable sand control under natural rain-fed conditions.

Description

Technical Field

[0001] The invention belongs to the technical field of ecological management, and specifically relates to a planting bag, an artificial shrub sand pile, a sand blocking and fixing belt, and a construction method and application thereof. Background Art

[0002] Scrub sand piles are a type of aeolian biogeomorphology formed in arid, semi-arid, semi-humid desert areas and sandy coastal zones, where sand particles accumulate inside and around the shrubs due to the obstruction of wind and sand flow by shrubs. Types include Caragana, Tamarix, Nitraria, Artemisia, etc. These shrub sand piles play a very important role in preventing wind and sand, protecting species diversity, and maintaining regional ecological balance. With the continuous deepening of research on aeolian landforms and desertification processes, research on shrub sand piles has received more and more attention at home and abroad, but it mainly focuses on morphological characteristics, spatial patterns, physical and chemical characteristics of sedimentation, formation and evolution processes, ecological characteristics and functions, and morphological dynamic processes under the control of airflow and wind and sand flow. At present, there is still a gap in the relevant research on artificially established shrub sand piles.

[0003] The natural formation of shrub sand piles takes several years to decades, especially in arid and extremely arid areas. The decline of groundwater levels will lead to the degradation of shrub sand piles and the creation of new sand sources. Scrub sand piles originate from the interference of plants with the movement of near-ground wind and sand flows. In the process of formation and development, they are closely related to the density, branch distribution, height, coverage, wind speed and sand transport rate of plants. The structure of desert plants itself is permeable and is a special type of sand fixation or sand collection obstacle. Through the interaction between plant growth and dune development, the wind speed on the leeward side of the plants decreases and the wind and sand accumulate. Plants continue to grow on the accumulated wind and sand, and thus gradually develop into shrub sand piles. In most areas, even in the seasons with the strongest wind and sand activity, there is little wind erosion on the surface of shrub sand piles with high vegetation coverage. Therefore, shrub sand piles are active sand barriers that fix wind and sand. When they are buried by wind and sand for a long time and continuously, they can still play a role in long-term fixation of wind and sand, which is impossible to achieve with general mechanical and biological sand control measures.

[0004] At present, the area of ​​shrub sand dunes is gradually decreasing due to natural factors and human interference. Under natural conditions, the growth, development and decline of shrub vegetation is a gradual and slow process, while human development of desert land has led to the rapid disintegration of sand dunes. At present, there is little research on the renewal mechanism of shrub sand dunes. The artificial auxiliary conservation measures and methods adopted for shrub sand dunes are limited to relatively simple levels such as fencing, grazing or artificial stubble, and there is still a blank in the relevant research on the artificial establishment of shrub sand dunes. These restoration research works are obviously not commensurate with the vast distribution area of ​​shrub sand dunes in China's arid areas. Therefore, conducting research on different restoration and conservation and artificial establishment models and technical systems of shrub sand dunes is a more urgent need for the current research and practice of shrub sand dune conservation technology, and it can also provide a more in-depth theoretical basis for the practical work of desertification prevention and control. Summary of the invention

[0005] The main purpose of the present invention is to provide a vegetation bag, an artificial shrub sand pile, a sand blocking and fixing belt and a construction method and application thereof, so as to overcome the deficiencies existing in the prior art.

[0006] To achieve the aforementioned object of the invention, the technical solution adopted by the embodiment of the present invention includes:

[0007] An embodiment of the present invention provides a planting bag, which includes a bag body, wherein the bag body is filled with fillers for planting plants, and the top layer and the bottom layer of the bag body are respectively composed of a highly weather-resistant film and an easily weathered material.

[0008] Furthermore, the filler comprises a mixture of farmland soil and cattle and sheep dung, wherein the cattle and sheep dung accounts for 5%-15% of the total weight of the farmland soil and the cattle and sheep dung.

[0009] Furthermore, the highly weather-resistant film is an EVA three-layer composite greenhouse film.

[0010] Furthermore, the easily weatherable material is a nylon mesh.

[0011] Furthermore, the easily weatherable material has a porous structure through which plant roots can pass.

[0012] The embodiment of the present invention further provides an artificial shrub sand pile, which includes a conical soil pile, a plurality of the above-mentioned vegetation bags are neatly stacked along the contour lines on the surface of the conical soil pile, and each vegetation bag is planted with sand-fixing shrubs.

[0013] The embodiment of the present invention further provides a scrub-sand pile sand-fixing belt, which includes a plurality of the above-mentioned artificial scrub-sand piles, and the plurality of artificial scrub-sand piles are arranged in multiple rows in a herringbone shape.

[0014] The embodiment of the present invention also provides a method for establishing a sand-blocking and sand-fixing belt based on vegetation bags, which comprises the following steps:

[0015] Take soil from the site and pile it into a conical mound;

[0016] stacking a plurality of the above-mentioned vegetation bags neatly along the contour lines on the surface of the conical soil pile;

[0017] Plant sand-fixing shrubs in each vegetation bag to form an artificial shrub sand pile;

[0018] Arrange multiple artificial shrub sand piles in a herringbone shape to form a sand-blocking and sand-fixing belt.

[0019] Furthermore, the spacing between the artificial shrub sand piles is 2-4m, and the row spacing is 2-4m.

[0020] Furthermore, multiple layers of vegetation bags are stacked from bottom to top on the surface of the conical soil pile, and the multiple vegetation bags in each layer are neatly stacked in sequence along a corresponding contour line.

[0021] Furthermore, more than 90% of the surface of the conical soil mound is covered with vegetation bags.

[0022] Furthermore, in early April, holes are punched on the surface of the vegetation bags, sand-fixing shrubs are planted or seeds are sown in the holes, and the entire shrub sand pile is irrigated, and then artificial irrigation is performed on the entire shrub sand pile in May, July and November.

[0023] Correspondingly, an embodiment of the present invention further provides a method for preventing wind and fixing sand, which comprises: constructing a sand-blocking and sand-fixing belt in arid desert areas by using a method for establishing a sand-blocking and sand-fixing belt based on vegetation bags.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The vegetation bag of the present invention can effectively prevent the evaporation of water inside the sand pile, which is beneficial to the growth of sand-dwelling shrubs in arid areas. It is a multifunctional new vegetation bag. The bottom layer of the vegetation bag is an easily weathered mesh body, and the top layer is a highly weather-resistant plastic film. The vegetation bag is filled with a mixture of farmland soil and cattle and sheep manure. The top film can prevent the evaporation of soil moisture and the erosion of the sand pile by rainwater, so that the shrub sand pile can fully utilize and store rainwater, and can allow rainwater to quickly infiltrate into the deep part of the sand pile, which is beneficial to the growth of plant roots underground. The bottom layer of the easily weathered mesh body has a certain porosity, which does not affect the penetration of plant roots, and the farmland soil and cattle and sheep manure in the vegetation bag can provide nutrients for plant growth.

[0026] (2) The present invention provides a method for establishing a shrub-sand mound fixation belt based on vegetation bags, so that the formation process of the shrub-sand mound is shortened from several years to several decades in nature to one year. That is, new vegetation bags are neatly stacked along the contour lines on the surface of the soil mound by artificial means, and sand-fixing shrubs are planted to form an artificial shrub-sand mound, so that the formation process of the shrub-sand mound is shortened from several years to several decades in nature to one year. Artificially planted sand-fixing shrubs such as white thorn, caragana, tamarisk, and wormwood all have the ability to capture and fix quicksand, which is conducive to the growth of shrub-sand mounds. In addition, the artificially arranged shrub-sand mounds in a "pink" shape can form a natural vegetation sand accumulation belt through their own development and growth combined with the natural sand accumulation process of inter-hill land. Since the shrub-sand mound has the characteristics of good water storage and conservation, the shrub-sand accumulation sand belt established by the present invention through a combination of artificial and natural methods achieves sustainable sand control under natural rain-fed conditions.

[0027] (3) The shrub sand pile formed by the present invention has a "fertile island" effect, which can effectively increase soil nutrients. The "fertile island" effect of the shrub sand pile formed under the shrub crown in arid and semi-arid areas is significant; the shrub sand pile also has a "shelter" effect, which can increase species diversity. As the "fertile island" effect of the shrub sand pile gradually emerges, the surrounding microenvironment also changes accordingly. The shrub increases the water infiltration rate, and the enhancement of soil moisture heterogeneity is beneficial to its own survival and reproduction, while also providing good conditions for the invasion, accumulation, and survival of herbaceous plants under the shrub, thereby facilitating the settlement and recovery of herbaceous plants in the shrub. This is the "shelter" effect of the shrub sand pile.

[0028] (4) The shrub sand pile formed by the present invention has the effect of preventing wind and fixing sand, and can maintain the ecological balance and stability of the sand land. In arid desert areas, the shrub sand pile changes the surface geomorphological characteristics of the sand land, increases the roughness of the underlying surface, and creates obstacles to airflow. It plays a role in reducing wind speed, preventing the migration of quicksand, intercepting fallen leaves, and preventing wind and fixing sand. The natural white thorn shrub sand pile on the edge of the Minqin oasis can continuously reduce the wind speed, which can be reduced by more than 40% on the leeward side, and has a significant effect of preventing wind and fixing sand. Therefore, the shrub sand accumulation sand belt in the present invention can effectively alleviate the sand burial hazards caused by wind and sand flows in arid deserts or Gobi areas to railways, roads and construction facilities, and the shrub community composed of different shrubs has a significant good effect of protecting and improving the ecological environment of the sand land. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the structure of a vegetation bag in one embodiment of the present application.

[0031] Figure 2 It is a schematic diagram of the structure of a shrub sand pile built based on vegetation bags in one embodiment of the present application.

[0032] Figure 3 It is a schematic diagram of the structure of a sand-blocking and sand-fixing belt established based on vegetation bags in one embodiment of the present application.

[0033] Explanation of the reference numerals: 1. bottom layer, 2. top layer, 3. conical mound. DETAILED DESCRIPTION

[0034] The present invention will be more fully understood through the following detailed description, which should be read in conjunction with the accompanying drawings. Detailed embodiments of the present invention are disclosed herein; however, it should be understood that the disclosed embodiments are only exemplary of the present invention, which can be embodied in various forms. Therefore, the specific functional details disclosed herein should not be interpreted as limiting, but only as the basis of the claims and as a representative basis for teaching those skilled in the art to adopt the present invention in different ways in virtually any appropriate detailed embodiment.

[0035] In view of the shortcomings of the prior art, the inventor of this case has proposed the technical solution of the present invention after long-term research and extensive practice. It mainly combines engineering and biological measures, establishes shrub sand piles by artificial means, and arranges them in a "pink shape" to form a large-scale biological sand blocking and sand fixing belt, and utilizes the unique water conservation function, "fertile island" effect, and "shelter" effect of shrub sand piles to control wind and sand disasters by artificially directly constructing shrub sand piles, providing a new idea and technology for wind and sand control in arid areas. The following will further explain the technical solution, its implementation process and principle.

[0036] One aspect of an embodiment of the present invention provides a planting bag, which includes a bag body filled with fillers for planting plants, and a top layer and a bottom layer of the bag body are respectively composed of a highly weather-resistant film and an easily weathered material.

[0037] In some preferred embodiments, the filler includes a mixture of farmland soil and cattle and sheep manure, wherein the cattle and sheep manure accounts for 5%-15% of the total weight of the farmland soil and the cattle and sheep manure.

[0038] In some preferred embodiments, the highly weather-resistant film is an EVA three-layer composite greenhouse film.

[0039] In some preferred embodiments, the weatherable material is a nylon mesh.

[0040] In some preferred embodiments, the weatherable material has a porous structure through which plant roots can pass.

[0041] The vegetation bag provided by the embodiment of the present invention has a bottom layer of an easily weathered nylon mesh and a top layer of a highly weather-resistant plastic film. The vegetation bag is filled with a mixture of farmland soil and cattle and sheep manure. The top film can prevent soil moisture from evaporating and rainwater from scouring and eroding the sand pile, so that the shrub sand pile can fully utilize and store rainwater, and can allow rainwater to quickly infiltrate into the deep part of the sand pile, which is beneficial to the growth of plant roots underground; the bottom layer of easily weathered nylon mesh has a certain porosity and does not affect the passage of plant roots, and the farmland soil and cattle and sheep manure in the vegetation bag can provide nutrients for plant growth.

[0042] Another aspect of the embodiments of the present invention provides an artificial shrub sand pile, which includes a conical soil pile, on the surface of which a plurality of the above-mentioned vegetation bags are neatly stacked along the contour lines, and each vegetation bag is planted with sand-fixing shrubs.

[0043] In some preferred embodiments, the conical soil mound has a height of 1-2 m and a bottom diameter of 2-5 m.

[0044] In some preferred embodiments, the vegetation bag is a vegetation bag with a length of 0.7 m and a width of 0.3 m.

[0045] In some preferred embodiments, the sand-fixing shrubs may include any one or more combinations of Nitraria tangutorum, Caragana spp., Tamarix chinensis, Haloxylon ammodendron, Caragana korshinskii, Artemisia selengensis, etc., but are not limited thereto.

[0046] Another aspect of the embodiments of the present invention further provides a scrub-sand pile sand-fixing belt, which includes a plurality of the above-mentioned artificial scrub-sand piles, and the plurality of artificial scrub-sand piles are arranged in multiple rows in a herringbone shape.

[0047] Another aspect of the embodiment of the present invention further provides a method for establishing a sand-blocking and sand-fixing belt based on vegetation bags, which comprises the following steps:

[0048] Take soil from the site and pile it into a conical mound;

[0049] Stacking a plurality of the above-mentioned vegetation bags neatly along the contour lines on the surface of the conical soil pile;

[0050] Plant sand-fixing shrubs in each vegetation bag to form an artificial shrub sand pile;

[0051] Arrange multiple artificial shrub sand piles in a herringbone shape to form a sand-blocking and sand-fixing belt.

[0052] In some preferred embodiments, the spacing between the artificial shrub sand piles is 2-4 m, and the row spacing is 2-4 m.

[0053] In some preferred embodiments, multiple layers of vegetation bags are stacked from bottom to top on the surface of the conical soil pile, and the multiple vegetation bags in each layer are stacked neatly in sequence along a corresponding contour line.

[0054] In some more preferred embodiments, more than 90% of the surface area of ​​the conical soil mound is covered with vegetation bags.

[0055] In some preferred embodiments, in early April, holes are punched on the surface of the vegetation bag, sand-fixing shrubs are planted or seeds are sown in the holes, and the entire shrub sand pile is irrigated, and then artificial irrigation is implemented in May, July and November.

[0056] In some more specific embodiments, the diameter of the holes punctured on the surface of the vegetation bag is 2 cm.

[0057] Correspondingly, an embodiment of the present invention further provides a method for preventing wind and fixing sand, which comprises: constructing a sand-blocking and sand-fixing belt in arid desert areas by using a method for establishing a sand-blocking and sand-fixing belt based on vegetation bags.

[0058] The advantage of artificially establishing scrub sand piles in the embodiment of the present invention is that a larger scrub sand pile can be formed in the same year, the growth rate and growth potential of plants are better than those in the natural state, the plants have a stronger sand fixation ability, and are not easy to degenerate. The artificially laid new vegetation bags can provide fertility for plant growth, effectively collect and store precipitation, and prevent evaporation. The artificial scrub sand piles are laid out in a "pin-shaped" shape to form a large-scale biological sand-fixing belt. The water stored in the sand pile can be used in the later stage, and continuous growth and wind-blocking and sand-fixing can be achieved without irrigation.

[0059] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further explained below in conjunction with specific implementation methods. It should be understood that the specific embodiments described herein are only used to explain the present invention, but the experimental conditions and setting parameters therein should not be regarded as limitations on the basic technical solutions of the present invention. And the protection scope of the present invention is not limited to the following embodiments. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0060] Example

[0061] See also Figure 1 As shown, an embodiment of the present invention provides a new type of vegetation bag, which includes a bag body, which is filled with a mixture of farmland soil and cattle and sheep manure for planting plants, wherein the cattle and sheep manure accounts for 5%-15% of the total weight of the farmland soil and the cattle and sheep manure; and the top layer 2 and the bottom layer 1 of the bag body are respectively composed of an EVA three-layer composite greenhouse film and an easily weathered material with a porous structure through which plant roots can pass.

[0062] See also Figure 2As shown in the figure, an artificial shrub sand dune provided by an embodiment of the present invention includes a conical soil mound 3. A plurality of the above-mentioned vegetation bags are neatly stacked on the surface of the conical soil mound 3 along the contour line, and each vegetation bag is planted with sand-fixing shrubs, such as any one or a combination of more than one of Nitraria tangutorum, Caragana sinica, Tamarix chinensis, Haloxylon ammodendron, Caragana korshinskii, Artemisia spp., etc.

[0063] Referring to Figure 3 As shown in the figure, a sand-fixing zone of shrub sand dunes includes a plurality of the above-mentioned artificial shrub sand dunes, and the plurality of artificial shrub sand dunes are arranged in multiple rows in a pyramid shape.

[0064] A method for establishing a sand-fixing zone of shrub sand dunes based on the vegetation bags in this embodiment includes the following steps:

[0065] Using machinery to take soil locally and build a conical soil mound with a height of 1 - 2 m and a bottom diameter of 2 - 5 m;

[0066] Referring to Figure 2 , stack multiple layers of vegetation bags with a length of 0.7 m and a width of 0.3 m on the surface of the conical soil mound 1 from bottom to top, and a plurality of vegetation bags in each layer are neatly stacked in sequence along a corresponding contour line. Then, at the beginning of April, by drilling holes with a diameter of 2 cm on the surface of the vegetation bags, plant any one or a combination of more than one of Nitraria tangutorum, Haloxylon ammodendron, Caragana sinica, Tamarix chinensis, Caragana korshinskii, Artemisia spp., etc., or sow seeds in the holes, and irrigate the entire sand dune. Then, conduct artificial supplementary irrigation on the entire shrub sand dune in May, July, and November;

[0067] Referring to Figure 3 , arrange a plurality of artificial shrub sand dunes in multiple rows in a "pyramid shape", and make the spacing between the artificial shrub sand dunes be 2 - 4 m and the row spacing be 2 - 4 m to form a sand-blocking and sand-fixing zone.

[0068] Correspondingly, an embodiment of the present invention also provides a wind prevention and sand fixation method to construct a sand-blocking and sand-fixing zone in arid desert areas based on the method of establishing a sand-blocking and sand-fixing zone using vegetation bags.

[0069] All aspects, embodiments, features, and examples of the present invention should be considered illustrative in all respects and are not intended to limit the present invention. The scope of the present invention is only defined by the claims. Without departing from the spirit and scope of the claimed present invention, those skilled in the art will understand other embodiments, modifications, and uses.

[0070] In the present invention, the use of titles and chapters does not mean limiting the present invention; each chapter can be applied to any aspect, embodiment, or feature of the present invention.

[0071] Throughout this disclosure, where a composition is described as having, containing, or comprising particular components, or where a process is described as having, containing, or comprising particular process steps, it is contemplated that the compositions taught by the present invention also consist essentially of or consist of the recited components, and that the processes taught by the present invention also consist essentially of or consist of the recited process steps.

[0072] Unless specifically stated otherwise, use of the terms "include," "includes," "including," "have," "has," or "having" should generally be construed as open ended and non-limiting.

[0073] It should be understood that the order of the various steps or the order in which the specific actions are performed is not very important, as long as the teachings of the present invention remain operable. In addition, two or more steps or actions may be performed simultaneously.

[0074] In addition, the inventors of this case also referred to the aforementioned embodiments and conducted experiments with other raw materials, process operations, and process conditions described in this specification, and obtained relatively ideal results.

[0075] Although the present invention has been described with reference to illustrative embodiments, it will be appreciated by those skilled in the art that various other changes, omissions and / or additions may be made without departing from the spirit and scope of the present invention and that the elements of the embodiments may be replaced by substantial equivalents. In addition, many modifications may be made without departing from the scope of the present invention to adapt specific circumstances or materials to the teachings of the present invention. Therefore, it is not intended herein to limit the present invention to the disclosed specific embodiments for performing the present invention, but it is intended that the present invention will include all embodiments within the scope of the appended claims. In addition, unless specifically stated, any use of the terms first, second, etc. does not indicate any order or importance, but rather uses the terms first, second, etc. to distinguish one element from another.

Claims

1. A shrub sand pile sand fixation belt, characterized in that: It comprises a plurality of artificial shrub sand piles, wherein the plurality of artificial shrub sand piles are arranged in a plurality of rows in a herringbone shape, and the spacing between the plurality of artificial shrub sand piles is 2-4m, and the row spacing is 2-4m; The artificial shrub sand pile includes a conical soil pile with a height of 1-2m and a bottom diameter of 2-5m. A plurality of vegetation bags are neatly stacked along the contour lines on the surface of the conical soil pile, each of which is planted with sand-fixing shrubs, and more than 90% of the surface area of ​​the conical soil pile is covered by the vegetation bags. The planting bag comprises a bag body, which is filled with fillers for planting plants, and the top layer and bottom layer of the bag body are respectively composed of a highly weather-resistant film and an easily weathered material. The highly weather-resistant film is an EVA three-layer composite greenhouse film, and the easily weathered material is a nylon mesh.

2. The shrub sand pile sand fixation belt according to claim 1, characterized in that: The filler comprises a mixture of farmland soil and cattle and sheep dung, wherein the cattle and sheep dung accounts for 5%-15% of the total weight of the farmland soil and the cattle and sheep dung.

3. The shrub sand pile sand fixation belt according to claim 1, characterized in that: The vegetation bag is a vegetation bag with a length of 0.7m and a width of 0.3m.

4. The shrub sand pile sand fixation belt according to claim 1, characterized in that: The sand-fixing shrubs include any one or more combinations of Nitraria tangutorum, Caragana spp., Tamarix chinensis, Haloxylon ammodendron, Caragana korshinskii, and Artemisia annua.

5. A method for establishing a sand-blocking and sand-fixing belt based on vegetation bags, characterized in that The steps include: Take soil from the site and pile it into a conical mound with a height of 1-2m and a bottom diameter of 2-5m; A plurality of vegetation bags are neatly stacked along the contour lines on the surface of the conical soil pile, and more than 90% of the surface of the conical soil pile is covered with the vegetation bags, wherein the vegetation bags include a bag body, the bag body is filled with fillers for planting plants, and the top layer and the bottom layer of the bag body are respectively composed of a highly weather-resistant film and an easily weathered material, wherein the highly weather-resistant film is an EVA three-layer composite greenhouse film, and the easily weathered material is a nylon mesh; Planting sand-fixing shrubs in each vegetation bag on each conical soil mound to form an artificial shrub sand mound; Arrange multiple artificial shrub sand piles in a herringbone shape in multiple rows, and make the spacing between the multiple artificial shrub sand piles 2-4m, and the row spacing 2-4m, so as to form a sand blocking and fixing belt.

6. The method according to claim 5, characterized in that include: Multiple layers of vegetation bags are stacked from bottom to top on the surface of the conical soil pile, and the multiple vegetation bags in each layer are neatly stacked in sequence along a corresponding contour line.

7. The method according to claim 5, characterized in that include: In early April, holes are punched on the surface of the vegetation bags, sand-fixing shrubs are planted or seeds are sown in the holes, and the entire shrub sand pile is irrigated. Then, artificial irrigation is performed on the entire shrub sand pile in May, July and November.

8. The method according to claim 7, characterized in that The diameter of the holes punched on the surface of the vegetation bag is 2 cm.

9. A method for preventing wind and fixing sand, characterized in that include: A sand-blocking and sand-fixing belt is constructed in an arid desert area by the method described in any one of claims 5 to 8.

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