Planting device for improving ecological restoration survival rate of saline-alkali soil

Abstract

The utility model relates to the technical field of planting, in particular to a planting device for improving the survival rate of ecological restoration of saline-alkali soil, which comprises a planting pot, the lower end of the planting pot is open, and the lower end of the planting pot is sequentially and fixedly connected with a fourth degradation layer, a third degradation layer, a second degradation layer and a first degradation layer from top to bottom. A high-concentration saline-alkali soil layer is laid on the fourth degradation layer, a medium-concentration saline-alkali soil layer is laid on the third degradation layer, and a low-concentration saline-alkali soil layer is laid on the second degradation layer. The plant cultivation device is favorable for improving the survival rate of plants.

Description

A planting device to improve the survival rate of plants in saline-alkali land ecological restoration Technical Field

[0001] This utility model relates to the field of planting technology, and in particular to a planting device for improving the survival rate of ecological restoration of saline-alkali land. Background Technology

[0002] Saline-alkali land refers to land with excessively high levels of soluble salts in the top or subsurface layers, or a soil pH value greater than 8.5, which leads to soil deterioration, decreased fertility, and negatively impacts normal plant growth.

[0003] When restoring the ecology by planting plants in saline-alkali land, the following methods are generally used: 1. Use containers made of plastic or biodegradable materials to completely isolate the saline-alkali soil and fill them with improved soil. After the containers degrade, the plants can grow in the saline-alkali soil. 2. Insert plastic or rubber partitions into the soil to prevent lateral salt migration and plant in the area enclosed by the partitions.

[0004] When using containers made of biodegradable materials for planting, although the containers can effectively protect the plants inside and prevent salt from seeping in when they are not degrading, once the containers degrade, the saline-alkali soil will quickly seep into the plant's soil, causing the roots to be suddenly exposed to a high-salt environment. This leads to the separation of the plant's cell walls and a sharp drop in the photosynthetic rate, resulting in plant death and affecting the plant's survival rate. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies that affect plant survival rates, and to propose a planting device that improves the survival rate of ecological restoration in saline-alkali land.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a planting device to improve the survival rate of ecological restoration of saline-alkali land, including a planting pot with an opening at the bottom. A fourth degradation layer, a third degradation layer, a second degradation layer, and a first degradation layer are fixedly connected to the bottom of the planting pot in sequence. A high-concentration saline-alkali soil layer is laid on the fourth degradation layer, a medium-concentration saline-alkali soil layer is laid on the third degradation layer, and a low-concentration saline-alkali soil layer is laid on the second degradation layer.

[0008] Preferably, the upper diameter of the planting pot is larger than the lower diameter.

[0009] Preferably, the planting pot includes a second half planting pot, and sealing gaskets are fixedly connected to both sides of the second half planting pot. The sealing gaskets abut against the first half planting pot, and the first half planting pot and the second half planting pot are fixed by a fastening mechanism.

[0010] Preferably, the sealing gasket is made of EPDM rubber material.

[0011] Preferably, the fastening mechanism includes a plurality of first fixing blocks, which are fixedly connected to a first half-planting pot, and a plurality of second fixing blocks are fixedly connected to a second half-planting pot. Each of the plurality of first fixing blocks and the plurality of second fixing blocks has an installation hole, and a bolt is provided in the installation hole. A nut is threaded onto the bolt.

[0012] Preferably, both the nut and the bolt are made of stainless steel.

[0013] Preferably, a protective sleeve is fixedly connected to the mounting hole on the second fixing block, a protective tube is fixedly connected to the mounting hole on the first fixing block, the protective tube is inserted into the protective sleeve, a sealing ring is fixedly connected to the outer wall of the protective tube, the sealing ring abuts against the inner wall of the protective sleeve, and a sealing shell is fixedly connected to the nut.

[0014] Preferably, the fourth degradation layer is a PCL material layer, the third degradation layer is a PLA material layer, the second degradation layer is a PBS material layer, and the first degradation layer is a starch-based plastic layer.

[0015] The present invention proposes a planting device to improve the survival rate of ecological restoration of saline-alkali land. The beneficial effect is that the salt concentration of the planting soil increases from top to bottom, creating a gradual adaptation environment for the plants and avoiding the sudden contact of the plants with a high-salt environment after they are removed from protection, thereby improving the survival rate of the plants. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the structure of a planting device for improving the survival rate of ecological restoration of saline-alkali land proposed in this utility model;

[0017] Figure 2 is a perspective view of a planting device proposed in this utility model to improve the survival rate of ecological restoration of saline-alkali land;

[0018] Figure 3 is a side perspective view of the second half of the planting pot of a planting device for improving the survival rate of ecological restoration of saline-alkali land proposed in this utility model.

[0019] Figure 4 is a perspective view of the bolt part of a planting device for improving the survival rate of ecological restoration of saline-alkali land proposed in this utility model.

[0020] Figure 5 is a perspective view of the first fixed block of a planting device for improving the survival rate of ecological restoration of saline-alkali land proposed in this utility model.

[0021] In the diagram: 1. First half of the planting pot; 2. Second half of the planting pot; 3. Sealing gasket; 4. First fixing block; 5. Second fixing block; 6. Protective sleeve; 7. Protective tube; 8. Sealing shell; 9. Nut; 10. First degradation layer; 11. Second degradation layer; 12. Third degradation layer; 13. Fourth degradation layer; 14. Bolt; 15. Sealing ring; 16. Low concentration saline-alkali soil layer; 17. Medium concentration saline-alkali soil layer; 18. High concentration saline-alkali soil layer; 19. Mounting hole; 20. Planting pot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1: Referring to Figures 1-3, a planting device for improving the survival rate of ecological restoration of saline-alkali land includes a planting pot 20. The planting pot 20 is buried underground with its upper end higher than the ground. The lower end of the planting pot 20 is open. A fourth degradation layer 13, a third degradation layer 12, a second degradation layer 11, and a first degradation layer 10 are fixedly connected to the lower end of the planting pot 20 in sequence. Normal soil is placed on the first degradation layer 10, and plants are planted in it.

[0024] A high-concentration saline-alkali soil layer 18 is laid on the fourth degradation layer 13, a medium-concentration saline-alkali soil layer 17 is laid on the third degradation layer 12, and a low-concentration saline-alkali soil layer 16 is laid on the second degradation layer 11. The salt concentration of the high-concentration saline-alkali soil layer 18 is lower than that of the planting area. By gradually increasing the salt concentration of the planting soil from top to bottom, a gradual adaptation environment is created for the plants, avoiding the sudden exposure of the plants to a high-salt environment after they are removed from protection, which helps to improve the survival rate of the plants.

[0025] The fourth degradation layer 13 is a PCL material layer, the third degradation layer 12 is a PLA material layer, the second degradation layer 11 is a PBS material layer, and the first degradation layer 10 is a starch-based plastic layer. Through the design of multiple degradation layers, the soil in different areas can be isolated, preventing the rapid upward movement of salt and facilitating the adaptation of plants to areas with low salt concentration.

[0026] The upper diameter of the planting pot 20 is larger than the lower diameter, which can guide the roots to grow deeper and form a healthier root structure.

[0027] During plant rooting, the plant first takes root in the normal soil above the starch-based plastic layer. As the starch-based plastic layer decomposes, the roots grow downwards into the high-concentration saline-alkali soil layer 16. As the PBS material layer decomposes, the roots extend further into the medium-concentration saline-alkali soil layer 17. As the PLA material layer decomposes, the roots penetrate the medium-concentration saline-alkali soil layer 17 and penetrate into the high-concentration saline-alkali soil layer 18. As the PCL material layer decomposes, the roots finally penetrate into the saline-alkali soil.

[0028] Example 2: In Example 1, since the planting pot 20 is an integral structure, it cannot be removed after the plant survives and can only be removed by smashing it, resulting in the planting pot 20 being unrecyclable and causing resource waste. Referring to Figures 3-5, as another preferred embodiment of this utility model, based on Example 1, the planting pot 20 includes a second half planting pot 2. Both sides of the second half planting pot 2 are fixedly connected with sealing gaskets 3, and the first half planting pot 1 is abutted on the sealing gaskets 3. The first half planting pot 1 and the second half planting pot 2 are fixed by a fastening mechanism. By using the sealing gaskets 3 for sealing, salt from the saline-alkali soil is prevented from entering through the gaps. EPDM rubber material has a certain tolerance to saline-alkali environments, so the sealing gaskets 3 are made of EPDM rubber material.

[0029] The fastening mechanism includes multiple first fixing blocks 4, which are fixedly connected to the first half-planting pot 1. Multiple second fixing blocks 5 are fixedly connected to the second half-planting pot 2. Each of the multiple first fixing blocks 4 and the multiple second fixing blocks 5 has a mounting hole 19. A bolt 14 is installed in the mounting hole 19. A nut 9 is threaded onto the bolt 14. The nut 9 abuts against the second fixing block 5. The nut of the bolt 14 abuts against the first fixing block 4, thereby fixing the first half-planting pot 1 and the second half-planting pot 2 together.

[0030] Both nut 9 and bolt 14 are made of stainless steel. The stainless steel surface has a chromium-rich oxide film, which effectively prevents corrosive media from penetrating.

[0031] After the plant survives, when the planting pot 20 needs to be disassembled, first dig out the soil around the planting pot 20 to expose the planting pot 20, then twist the nut 9 to remove the nut 9, so that the first half of the planting pot 1 and the second half of the planting pot 2 are separated. Finally, take out the first half of the planting pot 1 and the second half of the planting pot 2 and backfill the excavated soil.

[0032] Example 3: In Example 2, the exposed connection structure of bolt 14 and nut 9 has a design flaw: long-term exposure of the threaded contact surface can easily lead to the intrusion of fine sand and gravel, causing the fine sand and gravel to get stuck in the thread, affecting the normal use of bolt 14 and nut 9. Referring to Figures 3-5, as another preferred embodiment of this utility model, based on Example 2, a protective sleeve 6 is fixedly connected to the mounting hole 19 on the second fixing block 5, and a protective tube 7 is fixedly connected to the mounting hole 19 on the first fixing block 4. The protective tube 7 is inserted into the protective sleeve 6, and a sealing ring 15 is fixedly connected to the outer wall of the protective tube 7. The sealing ring 15 abuts against the inner wall of the protective sleeve 6. A sealing shell 8 is fixedly connected to the nut 9. The threaded part of bolt 14 is covered by the protective tube 7 and the protective sleeve 6 to prevent the intrusion of sand and gravel. At the same time, the sealing ring 15 prevents sand and gravel from entering through the gap between the protective tube 7 and the protective sleeve 6.

[0033] When the bolt 14 is tightened, the first fixing block 4 and the second fixing block 5 will move towards each other, adjusting the position of the protective sleeve 6 on the protective tube 7, thereby covering the middle thread of the bolt 14, and then covering the tail thread of the bolt 14 through the sealing shell 8.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A planting device for improving the survival rate of ecological restoration of saline-alkali land, comprising a planting pot (20), characterized in that, The planting pot (20) has an opening at the bottom. The planting pot (20) is fixedly connected to the fourth degradation layer (13), the third degradation layer (12), the second degradation layer (11), and the first degradation layer (10) in sequence from the bottom to the top. A high-concentration saline-alkali soil layer (18) is laid on the fourth degradation layer (13), a medium-concentration saline-alkali soil layer (17) is laid on the third degradation layer (12), and a low-concentration saline-alkali soil layer (16) is laid on the second degradation layer (11).

2. The planting device for improving the survival rate of ecological restoration of saline-alkali land according to claim 1, characterized in that, The upper diameter of the planting pot (20) is larger than the lower diameter.

3. The planting device for improving the survival rate of ecological restoration of saline-alkali land according to claim 1, characterized in that, The planting pot (20) includes a second half planting pot (2), and sealing gaskets (3) are fixedly connected to both sides of the second half planting pot (2). The sealing gaskets (3) abut against the first half planting pot (1). The first half planting pot (1) and the second half planting pot (2) are fixed by a fastening mechanism.

4. The planting device for improving the survival rate of ecological restoration of saline-alkali land according to claim 3, characterized in that, The sealing gasket (3) is made of EPDM rubber material.

5. A planting device for improving the survival rate of ecological restoration of saline-alkali land according to claim 3, characterized in that, The fastening mechanism includes multiple first fixing blocks (4), which are fixedly connected to the first half-planting pot (1). Multiple second fixing blocks (5) are fixedly connected to the second half-planting pot (2). Mounting holes (19) are provided on both the multiple first fixing blocks (4) and the multiple second fixing blocks (5). Bolts (14) are provided in the mounting holes (19), and nuts (9) are threaded onto the bolts (14).

6. A planting device for improving the survival rate of ecological restoration of saline-alkali land according to claim 5, characterized in that, Both the nut (9) and the bolt (14) are made of stainless steel.

7. A planting device for improving the survival rate of ecological restoration of saline-alkali land according to claim 5, characterized in that, A protective sleeve (6) is fixedly connected in the mounting hole (19) on the second fixing block (5), and a protective tube (7) is fixedly connected in the mounting hole (19) on the first fixing block (4). The protective tube (7) is inserted into the protective sleeve (6), and a sealing ring (15) is fixedly connected to the outer wall of the protective tube (7). The sealing ring (15) abuts against the inner wall of the protective sleeve (6), and a sealing shell (8) is fixedly connected to the nut (9).

8. The planting device for improving the survival rate of ecological restoration of saline-alkali land according to claim 1, characterized in that, The fourth degradation layer (13) is a PCL material layer, the third degradation layer (12) is a PLA material layer, the second degradation layer (11) is a PBS material layer, and the first degradation layer (10) is a starch-based plastic layer.

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