A salt-tolerant planting device for haloxylon ammodendron in a sandy area under saline water drip irrigation conditions

Abstract

A salt-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas includes multiple bamboo-woven arc-shaped frames installed on top of the sandy foundation. Haloxylon ammodendron seedlings are planted on top of the foundation, and the seedlings are located inside the bamboo-woven arc-shaped frames. This invention implants the Haloxylon ammodendron seedlings into the sandy foundation, secures the bamboo-woven arc-shaped frames to the seedling surface, and inserts conical heads into the foundation to fix the frames. Drip irrigation pipes are connected to the arc-shaped pipe connectors, allowing water to flow through the arc-shaped pipes and through small drainage holes to the surface of a non-woven fabric. The non-woven fabric evenly guides the drip irrigation water and slowly permeates it along the bamboo-woven arc-shaped frames to the roots of the Haloxylon ammodendron seedlings. Simultaneously, it physically isolates the root zone from the surrounding high-salt sandy soil, reducing salt migration to the root zone. This solves the technical problems of existing saline drip irrigation technologies, such as the continuous accumulation of soil salt in the Haloxylon ammodendron root zone, the lack of salt drainage structures leading to root salt damage, and the high investment, complex operation and maintenance, and high cost of saline desalination equipment, making it difficult to promote and apply on a large scale in remote sandy areas.

Description

Technical Field

[0001] This invention belongs to the field of agricultural irrigation technology, and in particular relates to a salt-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas. Background Technology

[0002] Haloxylon ammodendron drip irrigation is a water-saving and precision irrigation technology applied in arid sandy areas. Its core is to slowly and evenly deliver water or saline water with a mineralization of 4-30 g / L directly to the root layer (about 30 cm deep) of Haloxylon ammodendron by inserting drip irrigation tapes shallowly buried 3-5 cm below the surface along the planting rows. Compared with traditional flood irrigation, this technology can significantly reduce surface evaporation loss, with a water saving rate of over 70%. It allows limited water to stay in the sand layer for longer, effectively ensuring the survival rate of seedlings and promoting deep root development. It systematically solves the contradiction between water shortage and ecological water demand in arid areas and is a key supporting technology for modern desertification control and windbreak and sand fixation.

[0003] Currently, when using saline water for drip irrigation of Haloxylon ammodendron in sandy areas, shallow-buried drip irrigation technology is adopted, in which drip irrigation tape is laid 3-5 cm below the ground surface, directly delivering water to the roots of Haloxylon ammodendron up to 30 cm deep to reduce surface evaporation loss. Some studies have also explored the effects of saline water with different mineralization (4-30 g / L) on the growth of Haloxylon ammodendron in order to determine a reasonable irrigation water quality threshold. First, saline drip irrigation leads to significant soil salt accumulation. Studies have found that the higher the mineralization of the irrigation water, the greater the degree of soil salt accumulation. At a depth of 60-80cm, the salt accumulation can reach up to 6.2g / kg, and salt exhibits both surface and deep-layer accumulation characteristics. Second, long-term saline irrigation causes the soil hydrochemical type to gradually evolve from SO4²⁻-Ca²⁺·Mg²⁺ to SO4²⁻·Cl⁻-Na⁺, with a significant increase in the proportion of sodium and chloride ions, exacerbating the risk of soil salinization. Saline water desalination is costly, and nanomembrane purification equipment requires large investments and is complex to maintain, making it difficult to promote on a large scale in remote sandy areas. Existing drip irrigation systems can only control irrigation water but cannot actively remove salt, leading to the gradual accumulation of salt over the years, affecting the long-term survival and growth of Haloxylon ammodendron. Summary of the Invention

[0004] The purpose of this invention is to provide a salt-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas. The technical problems to be solved are the continuous accumulation of soil salt in the root zone of Haloxylon ammodendron under existing saline drip irrigation conditions, the lack of salt drainage structure leading to aggravated salt damage, and the high cost of existing saline desalination treatment, which makes it difficult to promote and apply on a large scale in sandy areas.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A saline-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas, comprising multiple bamboo-woven arc-shaped frames set on the top of the foundation in the sandy area; multiple Haloxylon ammodendron seedlings are planted on the top of the foundation in the sandy area, the seedlings are located in the inner cavity of the bamboo-woven arc-shaped frames, non-woven fabric is fixedly connected to the outer side of the multiple bamboo-woven arc-shaped frames, an arc-shaped water pipe is installed on the top of the outer side of the bamboo-woven arc-shaped frames, an arc-shaped water pipe connector is connected to the central axis of the top of the arc-shaped water pipe, multiple small drainage holes are opened at the bottom of the arc-shaped water pipe, the multiple drainage holes are attached to the surface of the non-woven fabric, an arc-shaped support ring is fixedly connected to the bottom of the outer surface of the bamboo-woven arc-shaped frames, arc-shaped legs are provided on both the left and right sides of the arc-shaped support ring, and a conical head is provided at the bottom of each of the two arc-shaped legs.

[0006] The present invention further comprises the following: a drip irrigation connection pipe is provided on the rear side of the Haloxylon ammodendron seedling, the drip irrigation connection pipe is laid on the top of the foundation in the sandy area, and the arc-shaped water pipe connector is connected to the connector of the drip irrigation connection pipe.

[0007] The present invention further comprises the following: a salt-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas, as described above: an opening groove is provided on one side of the bamboo woven arc frame for Haloxylon ammodendron seedlings to pass through.

[0008] The present invention further comprises the following: a plurality of water pipe fasteners are fixedly connected to the top of the outer side of the bamboo woven arc frame, and the arc-shaped water pipe is located in the inner cavity of the plurality of water pipe fasteners.

[0009] The present invention further comprises the following: a salt-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas, as described above: a fixing seat is fixedly connected to both the left and right sides of the arc-shaped support ring, and a circular hole is opened on the surface of the fixing seat, and the arc-shaped support leg passes through the circular hole of the fixing seat.

[0010] The present invention further comprises, as described above, a salt-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas, wherein bolts are provided through the surfaces of the fixing base and the arc-shaped support leg.

[0011] The present invention further comprises the following: the surface of the bolt is threaded with a nut, and one side of the nut is attached to the front side of the fixing seat.

[0012] The present invention further comprises the following: the bottom of each of the two arc-shaped legs is fixedly connected to a vertical leg, and the bottom of the two vertical legs is fixedly connected to the upper end of the two conical heads.

[0013] The present invention further comprises the following: the saline-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas, as described above, wherein one side of the arc-shaped water pipe and the arc-shaped support ring are provided with an opening groove for Haloxylon ammodendron seedlings to pass through.

[0014] The present invention further comprises the following: the arc-shaped support leg, the vertical support leg, and the conical head are all inserted into the soil layer of the sandy area foundation.

[0015] The beneficial effects of this invention are: This invention involves planting Haloxylon ammodendron seedlings in a sandy soil foundation, securing a bamboo-woven arc-shaped frame to the seedling surface, and inserting a conical head into the foundation to fix the frame. A drip irrigation pipe is connected to the arc-shaped pipe connector, allowing water to flow through the arc-shaped pipe and through small holes to a non-woven fabric surface. The non-woven fabric distributes the drip irrigation water evenly via capillary action and guides it slowly along the bamboo-woven arc-shaped frame to the roots of the Haloxylon ammodendron seedlings, preventing direct seepage or evaporation loss. Simultaneously, the non-woven fabric acts as a physical barrier, isolating the Haloxylon ammodendron root zone from the surrounding high-salt sand, effectively inhibiting salt migration to the root zone via capillary action or diffusion, thereby mitigating salt accumulation in the root zone. This invention requires no costly desalination equipment, has a simple structure, and is suitable for large-scale promotion in sandy areas.

[0016] This invention utilizes a water pipe clamp to position the curved water pipe, ensuring that the curved water pipe does not shift or fall off when installed on the outer surface of the bamboo woven curved frame, thus improving the stability of the curved water pipe installation.

[0017] The present invention, through the setting of the fixed seat, plays a limiting role in the installation of the arc-shaped support leg on both sides of the arc-shaped support ring, ensuring that the arc-shaped support leg is locked in the fixed seat by bolts, so that the position of the arc-shaped support leg inserted into the inner cavity of the sand foundation will not shift, thereby improving the stability of the arc-shaped support leg inserted into the inner cavity of the sand foundation. Attached Figure Description

[0018] The advantages of the present invention, both above and / or other aspects, will become clearer and more readily understood through the following detailed description taken in conjunction with the accompanying drawings, which are merely illustrative and do not limit the invention, wherein: Figure 1 This is a front view schematic diagram of an embodiment of the present invention; Figure 2 This is a three-dimensional schematic diagram of a bamboo-woven arc-shaped frame and arc-shaped support legs according to an embodiment of the present invention; Figure 3 This is a schematic diagram showing the disassembled bamboo woven arc-shaped frame and arc-shaped support ring according to an embodiment of the present invention; Figure 4 For the present invention Figure 3 A magnified view of point A in the middle; Figure 5 This is a three-dimensional diagram showing the disassembled non-woven fabric and arc-shaped water pipe according to an embodiment of the present invention; Figure 6 This is a plan view of an arc-shaped water pipe and a small leakage hole according to an embodiment of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Sandy foundation; 2. Bamboo woven arc frame; 3. Haloxylon ammodendron seedlings; 4. Drip irrigation connecting pipes; 5. Non-woven fabric; 6. Pipe clamps; 7. Arc-shaped water pipes; 8. Arc-shaped water pipe connectors; 9. Leakage holes; 10. Arc-shaped support rings; 11. Fixing base; 12. Arc-shaped support legs; 13. Bolts; 14. Nuts; 15. Vertical support legs; 16. Conical heads. Detailed Implementation

[0020] In the following description, embodiments of the present invention for a salt-tolerant Haloxylon ammodendron planting device under saline drip irrigation conditions in sandy areas will be described with reference to the accompanying drawings.

[0021] The embodiments described herein are specific implementations of the present invention, used to illustrate the concept of the invention, and are illustrative and exemplary, and should not be construed as limiting the implementation or scope of the invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0022] The accompanying drawings in this specification are schematic diagrams to aid in illustrating the concept of the invention, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly demonstrate the structure of the components in the embodiments of the invention, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.

[0023] Figure 1-6This invention illustrates an embodiment of a saline-tolerant Haloxylon ammodendron planting device for drip irrigation in saline-water conditions in sandy areas. It includes multiple bamboo-woven arc-shaped frames 2 mounted on top of a sandy foundation 1. Multiple Haloxylon ammodendron seedlings 3 are planted on top of the foundation 1, located within the inner cavity of the bamboo-woven arc-shaped frames 2. Drip irrigation connection pipes 4 are installed on the rear side of each seedling 3, laid on top of the foundation 1. Arc-shaped pipe connectors 8 communicate with the connectors of the drip irrigation connection pipes 4. One side of each bamboo-woven arc-shaped frame 2 has an opening for the Haloxylon ammodendron seedlings 3 to pass through. Non-woven fabric 5 is fixedly connected to the outer sides of each of the multiple bamboo-woven arc-shaped frames 2. Arc-shaped water pipes 7 are installed on the top of the outer sides of each frame 2. Arc-shaped water pipe connectors 8 are connected to the central axis of the top of each arc-shaped water pipe 7. Multiple small drainage holes 9 are provided at the bottom of each arc-shaped water pipe 7. A small drainage hole 9 is attached to the surface of the non-woven fabric 5. An arc-shaped support ring 10 is fixedly connected to the bottom of the outer surface of the bamboo woven arc frame 2. Arc-shaped support legs 12 are provided on both the left and right sides of the arc-shaped support ring 10. A conical head 16 is provided at the bottom of each of the two arc-shaped support legs 12. A bolt 13 is provided through the surface of the fixed seat 11 and the arc-shaped support leg 12. A nut 14 is threaded onto the surface of the bolt 13. One side of the nut 14 is attached to the front side of the fixed seat 11. A vertical support leg 15 is fixedly connected to the bottom of each of the two arc-shaped support legs 12. The bottom of each of the two vertical support legs 15 is fixedly connected to the upper end of each of the two conical heads 16. An opening groove for the Haloxylon ammodendron seedling 3 to pass through is opened on one side of the arc-shaped water pipe 7 and the arc-shaped support ring 10. The arc-shaped support legs 12, the vertical support legs 15 and the conical heads 16 are all inserted into the soil layer of the sandy foundation 1.

[0024] The above-mentioned solution is as follows: This invention involves planting Haloxylon ammodendron seedlings 3 into the sandy soil foundation 1, clamping the bamboo-woven arc-shaped frame 2 onto the surface of the seedlings 3, and inserting the conical head 16 into the sandy soil foundation 1 to fix the frame. The drip irrigation connection pipe 4 is connected to the arc-shaped water pipe connector 8. Water flows through the arc-shaped water pipe 7 from the drainage hole 9 to the surface of the non-woven fabric 5. The non-woven fabric 5 blocks the salt in the water, allowing fresh water to pass through the non-woven fabric 5 and flow along the bamboo-woven arc-shaped frame 2 to the roots of the Haloxylon ammodendron seedlings 3. This solves the technical problems of existing saline drip irrigation technology, such as the continuous accumulation of soil salt in the Haloxylon ammodendron root zone, the lack of salt drainage structure leading to root salt damage, and the large investment, complex operation and maintenance, and high cost of saline desalination equipment, which makes it difficult to promote and apply on a large scale in remote sandy areas.

[0025] refer to Figure 5 and Figure 6 The above solution is adopted: multiple water pipe clips 6 are fixedly connected to the top of the outer side of the bamboo woven arc frame 2. The arc water pipe 7 is located in the inner cavity of the multiple water pipe clips 6. Through the setting of the water pipe clips 6, the water pipe clips 6 play a positioning role for the arc water pipe 7, ensuring that the arc water pipe 7 will not shift or fall off when installed on the outer surface of the bamboo woven arc frame 2, thus improving the stability of the installation of the arc water pipe 7.

[0026] refer to Figure 3 and Figure 4 The above-mentioned scheme is adopted: the left and right sides of the arc-shaped support ring 10 are fixedly connected to the fixing seats 11. The surface of the fixing seats 11 is provided with circular holes. The arc-shaped support legs 12 are inserted into the circular holes of the fixing seats 11. Through the setting of the fixing seats 11, the fixing seats 11 play a limiting role in the installation of the arc-shaped support legs 12 on both sides of the arc-shaped support ring 10, ensuring that the arc-shaped support legs 12 are locked in the fixing seats 11 by bolts 13, so that the position of the arc-shaped support legs 12 inserted into the inner cavity of the sand foundation 1 will not shift, thereby improving the stability of the arc-shaped support legs 12 inserted into the inner cavity of the sand foundation 1.

[0027] It should be noted that non-woven fabric, also known as nonwoven cloth, refers to a sheet material made by arranging short textile fibers or filaments in a directional or random manner to form a fiber web structure through physical, chemical, or mechanical methods, and then bonding them together using methods such as needle punching, hydroentangling, thermal bonding, or chemical bonding. It does not undergo traditional spinning and weaving processes. It should also be noted that the non-woven fabric in this device is not used for directly filtering or removing dissolved salt ions from water. Instead, it utilizes its hydrophilic fiber structure to form a porous medium, achieving the following three engineering functions: First, uniform flow guidance. After drip irrigation water flows out from the small holes, it contacts the surface of the non-woven fabric and, under the action of capillary force, rapidly spreads along the plane of the non-woven fabric, forming a uniform water film. This prevents water droplets from directly seeping down or evaporating, and the water slowly flows along the bamboo-woven arc frame to the roots, improving water use efficiency. Second, physical isolation. Non-woven fabric is wrapped around the outside of the bamboo-woven arc-shaped frame, separating the root zone of the Haloxylon ammodendron from the surrounding high-salt sandy soil. This prevents salt from the high-salt soil from entering the root zone through capillary action or diffusion, thus slowing down salt accumulation in the root zone. Third, it assists in salt removal. As drip irrigation proceeds, a small amount of salt in the water crystallizes and precipitates on the surface of the non-woven fabric as the water evaporates. Regularly replacing the non-woven fabric removes some of the salt, achieving passive salt removal. These functions work together to provide the Haloxylon ammodendron with a relatively low-salt root microenvironment under saline drip irrigation conditions.

[0028] Working principle: When using this invention: First, plant the Haloxylon ammodendron seedlings 3 on the sandy foundation 1. Then, insert the bamboo woven arc frame 2 into the opening slot on one side, so that the Haloxylon ammodendron seedlings 3 are located in the center of the inner cavity of the bamboo woven arc frame 2. Next, insert the arc-shaped support legs 12 and the conical head 16 into the sand. Then, fix the arc-shaped support legs 12 to the fixing seats 11 on both sides of the arc-shaped support ring 10 with bolts 13 and nuts 14, so that the entire device is stably anchored in the sandy foundation 1 to prevent it from being blown over or displaced by wind and sand. Secondly, the drip irrigation connection pipe 4 laid on top of the sandy foundation 1 is connected to the arc-shaped water pipe connector 8. After the drip irrigation system is started, note: the steps for starting the drip irrigation system are mature existing technologies and will not be described in detail; saline water enters the inner cavity of the arc-shaped water pipe 7 through the arc-shaped water pipe connector 8, the water flows along the arc-shaped water pipe 7, and slowly drips out from multiple small leakage holes 9 opened at the bottom. The multiple small leakage holes 9 are close to the surface of the non-woven fabric 5 to ensure that the water droplets are evenly distributed on the non-woven fabric 5; Then, after the water droplets flow onto the surface of the non-woven fabric 5, the drip irrigation water flows out from the small holes and contacts the surface of the non-woven fabric. Under the action of capillary force, it spreads rapidly along the plane of the non-woven fabric, forming a uniform water film, preventing the water droplets from directly seeping down or evaporating. It then flows slowly along the bamboo-woven arc frame to the roots, improving water use efficiency. As drip irrigation proceeds, a small amount of salt in the water will crystallize and precipitate on the surface of the non-woven fabric as the water evaporates. Regularly replacing the non-woven fabric can remove some of the salt, achieving passive salt removal. The combined effect of these functions allows the saxaul to obtain a relatively low-salt root microenvironment under saline drip irrigation conditions. The fresh water passing through the non-woven fabric 5 continues to flow downwards along the inner wall of the bamboo-woven arc frame 2, and eventually drips onto the root area of ​​the saxaul seedling 3, where it is absorbed and utilized by the root system. Finally, the salt adhering to the surface of the non-woven fabric 5 will be washed to the outside of the non-woven fabric 5 with the next drip irrigation, or naturally dried and crystallized. Due to the wrapping effect of the bamboo woven arc frame 2, the salt is isolated outside the root system and will not directly contact the roots of the Haloxylon ammodendron seedling 3. At the same time, the non-woven fabric 5 can be replaced after long-term use, thereby continuously providing a low-salt root microenvironment for the Haloxylon ammodendron seedling 3 and ensuring that the Haloxylon ammodendron seedling 3 grows normally under saline water conditions in sandy areas.

[0029] The technical features disclosed above are not limited to the combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of the invention to achieve the purpose of the invention.

Claims

1. A salt-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas, characterized in that, Includes multiple bamboo-woven arc-shaped frames (2) set on top of the sandy foundation (1): multiple Haloxylon ammodendron seedlings (3) are planted on the top of the sandy foundation (1), the Haloxylon ammodendron seedlings (3) are located in the inner cavity of the bamboo-woven arc-shaped frames (2), non-woven fabric (5) is fixedly connected to the outer side of the multiple bamboo-woven arc-shaped frames (2), an arc-shaped water pipe (7) is installed on the top of the outer side of the bamboo-woven arc-shaped frames (2), an arc-shaped water pipe connector (8) is connected to the central axis of the top of the arc-shaped water pipe (7), multiple small holes (9) are opened at the bottom of the arc-shaped water pipe (7), the multiple small holes (9) are attached to the surface of the non-woven fabric (5), an arc-shaped support ring (10) is fixedly connected to the bottom of the outer surface of the bamboo-woven arc-shaped frames (2), arc-shaped support legs (12) are set on both the left and right sides of the arc-shaped support ring (10), and a conical head (16) is set at the bottom of the two arc-shaped support legs (12).

2. The saline-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas according to claim 1, characterized in that, A drip irrigation connection pipe (4) is provided on the rear side of the Haloxylon ammodendron seedling (3). The drip irrigation connection pipe (4) is laid on the top of the sandy foundation (1). The arc-shaped water pipe connector (8) is connected to the connector of the drip irrigation connection pipe (4).

3. The saline-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas according to claim 1, characterized in that, The bamboo woven arc frame (2) has an opening groove on one side for the Haloxylon ammodendron seedlings (3) to pass through.

4. The saline-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas according to claim 1, characterized in that, Multiple water pipe fasteners (6) are fixedly connected to the top of the outer side of the bamboo woven arc frame (2), and the arc water pipe (7) is located in the inner cavity of the multiple water pipe fasteners (6).

5. The saline-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas according to claim 1, characterized in that, The left and right sides of the arc-shaped support ring (10) are fixedly connected to the fixing base (11). The surface of the fixing base (11) is provided with a circular hole, and the arc-shaped support leg (12) passes through the circular hole of the fixing base (11).

6. The saline-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas according to claim 5, characterized in that, Bolts (13) are provided through the surfaces of the fixed base (11) and the arc-shaped support leg (12).

7. The saline-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas according to claim 6, characterized in that, The bolt (13) has a nut (14) threaded onto its surface, and one side of the nut (14) is attached to the front side of the fixing seat (11).

8. The saline-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas according to claim 1, characterized in that, The bottom of each of the two arc-shaped support legs (12) is fixedly connected to a vertical support leg (15), and the bottom of the two vertical support legs (15) is fixedly connected to the upper end of the two conical heads (16).

9. The saline-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas according to claim 8, characterized in that, The arc-shaped support leg (12), the vertical support leg (15), and the conical head (16) are all inserted into the soil layer of the sandy foundation (1).

10. The saline-tolerant planting device for Haloxylon ammodendron under saline drip irrigation conditions in sandy areas according to claim 1, characterized in that, Both the arc-shaped water pipe (7) and the arc-shaped support ring (10) have openings on one side for the Haloxylon ammodendron seedlings (3) to pass through.

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