Saline-alkali soil improvement structure
By managing salt content through the isolation layer and salt drainage components in the saline-alkali land improvement structure, the problem of salt intrusion in saline-alkali soil is solved, achieving the effects of preventing salt return and saving water resources, and promoting plant growth.
Patent Information
- Application Number
- CN202520299420.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Salt in saline-alkali soil can easily seep into the planting soil, affecting plant growth and even causing plant death.
The structure for improving saline-alkali land includes a saline-alkali soil layer, an isolation layer, a bottom membrane, a water storage ditch, and a straw layer. It uses salt drainage components and liquid level sensors to control the groundwater level, and manages the salt content through a water pump and water pipe system. The bottom membrane reduces water evaporation, and the straw layer blocks capillary evaporation.
It effectively prevents salt water from entering the planting layer, reduces surface salt accumulation, lowers watering frequency, saves water resources, and promotes plant growth.
Smart Images
Figure CN223885673U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of saline-alkali land improvement technology, and in particular to a saline-alkali land improvement structure. Background Technology
[0002] Saline-alkali land is a type of salt accumulation, referring to soil where the salt content affects the normal growth of crops. According to incomplete statistics from UNESCO and FAO, the total area of saline-alkali land in the world is 954.38 million hectares, of which 99.13 million hectares are in my country.
[0003] Researchers have proposed a range of methods for improving saline-alkali land, including water conservancy, physical, chemical, and biological methods. Biological improvement, based on vegetation restoration, involves planting salt-tolerant plants and raising livestock on saline-alkali land, which can improve the fragile ecosystem. However, salt intrusion is a significant problem during vegetation restoration; salt from the surrounding and bottom saline-alkali soil can easily seep into the planting soil, affecting plant growth and even causing plant death. Utility Model Content
[0004] The purpose of this utility model is to provide a saline-alkali land improvement structure to solve the problem that salt in saline-alkali soil can easily penetrate into the planting soil, affecting plant growth and even causing plant death.
[0005] To achieve the above objectives, this utility model provides a saline-alkali land improvement structure, comprising: a saline-alkali soil layer and a planting layer, wherein an isolation layer is provided on the saline-alkali soil layer, a salt drainage component is provided inside the isolation layer, a bottom film is provided on the isolation layer, a water storage ditch is provided on the bottom film, a straw layer is provided inside the water storage ditch, and a planting layer is provided on the straw layer.
[0006] The salt discharge component includes at least a first water pipe, a second water pipe, and a water pump. The first water pipe is disposed within the isolation layer and has multiple through holes. The second water pipe is connected to the first water pipe, and a connector on the second water pipe is connected to the water pump.
[0007] As a further description of the above technical solution:
[0008] A liquid level sensor is installed inside the isolation layer, and the liquid level sensor is connected to the water pump.
[0009] As a further description of the above technical solution:
[0010] The isolation layer includes a gravel layer and a first fine sand layer, wherein the gravel layer is disposed on the saline-alkali soil layer and the first fine sand layer is disposed on the gravel layer.
[0011] As a further description of the above technical solution:
[0012] At least one overflow hole is provided on the water storage ditch, and a third water pipe is connected to the overflow hole, which extends into the gravel layer.
[0013] As a further description of the above technical solution:
[0014] The third water pipe is arranged horizontally on a portion of the gravel layer, and multiple drainage holes are provided on the portion of the third water pipe located on the gravel layer.
[0015] As a further description of the above technical solution:
[0016] A second layer of fine sand is provided between the bottom membrane and the water storage ditch.
[0017] As a further description of the above technical solution:
[0018] The water storage ditch is equipped with several water-guiding components, one end of which extends into the planting layer.
[0019] As a further description of the above technical solution:
[0020] The water-guiding component is a strip of cloth or a strip of sponge.
[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0022] 1. In this utility model, by setting an isolation layer and installing a first water pipe inside the isolation layer, when the groundwater rises, the water pump starts to work, and the groundwater is drawn into the first water pipe, flows to the second water pipe, and is finally discharged. This effectively controls the groundwater level at a certain level, thereby preventing underground salt water from entering the planting layer and preventing salt return.
[0023] 2. In this utility model, a bottom film is set on the isolation layer, which can reduce water evaporation and inhibit surface salt accumulation; the straw layer can effectively block soil capillaries, prevent groundwater evaporation, and prevent salt return. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of a saline-alkali land improvement structure.
[0026] Figure 2 This is a schematic diagram of the salt drainage component in a saline-alkali land improvement structure according to another embodiment.
[0027] Legend:
[0028] 1. Saline-alkali soil layer; 2. Planting layer; 3. Isolation layer; 31. Gravel layer; 32. First fine sand layer; 4. Bottom film; 5. Water storage ditch; 6. Straw layer; 7. First water pipe; 8. Second water pipe; 9. Water pump; 10. Third water pipe; 11. Second fine sand layer; 12. Water diversion components. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0032] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] Please see Figure 1-2 This utility model provides a structure for improving saline-alkali land, including: a saline-alkali soil layer 1 and a planting layer 2. An isolation layer 3 is provided on the saline-alkali soil layer 1. A salt drainage component is provided inside the isolation layer 3. A bottom film 4 is provided on the isolation layer 3. A water storage ditch 5 is provided on the bottom film 4. A straw layer 6 is provided inside the water storage ditch 5. The planting layer 2 is provided on the straw layer 6.
[0035] The salt discharge component includes at least one first water pipe 7, a second water pipe 8, and a water pump 9. The first water pipe 7 is disposed inside the isolation layer 3 and has multiple through holes. The second water pipe 8 is connected to the first water pipe 7, and the connector on the second water pipe 8 is connected to the water pump 9.
[0036] A liquid level sensor is installed inside the isolation layer 3, and the liquid level sensor is connected to the water pump 9. By installing the liquid level sensor, after the groundwater rises, the liquid level sensor detects the water and sends information to the water pump, controlling the water pump to work, which facilitates the control of the water pump operation.
[0037] The isolation layer 3 includes a gravel layer 31 and a first fine sand layer 32. The gravel layer 31 is disposed on the saline-alkali soil layer 1, and the first fine sand layer 32 is disposed on the gravel layer 31. The first fine sand layer can prevent the gravel from puncturing the mulch film, and the gravel layer can prevent the pores from being blocked.
[0038] At least one overflow hole is provided on the water storage ditch 5, and a third water pipe 10 is connected to the overflow hole, extending into the gravel layer 31. After watering the plants on the planting layer, the seeping water can be stored in the water storage ditch. When there is too much water, it can flow to the isolation layer and finally to the saline-alkali soil layer for flushing, which can dilute the salt.
[0039] The third water pipe 10 is arranged horizontally on a portion of the gravel layer 31, and multiple drainage holes are provided on the portion of the third water pipe 10 located on the gravel layer 31. This can improve flushing efficiency.
[0040] A second fine sand layer 11 is provided between the bottom membrane 4 and the water storage ditch 5.
[0041] The water storage ditch 5 is equipped with several water-guiding components 12, one end of which extends into the planting layer 2. The water-guiding components 12 are cloth strips or sponge strips. Water from the water storage ditch is introduced into the planting layer through the water-guiding components, providing the necessary moisture for plant growth, reducing watering frequency, and conserving water resources.
[0042] Working principle: An isolation layer is installed, within which a first water pipe is placed. When groundwater rises, a water pump starts working, drawing groundwater into the first pipe, which then flows to a second pipe and is finally discharged. This effectively controls the groundwater level at a certain level, preventing saline from entering the planting layer and thus preventing salt return. A bottom film on the isolation layer reduces water evaporation and inhibits surface salt accumulation; the straw layer effectively blocks soil capillary action, preventing groundwater evaporation and salt return.
[0043] 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 structure for improving saline-alkali land, comprising: a saline-alkali soil layer and a planting layer, characterized in that, An isolation layer is provided on the saline-alkali soil layer, a salt drainage component is provided inside the isolation layer, a bottom film is provided on the isolation layer, a water storage ditch is provided on the bottom film, a straw layer is provided inside the water storage ditch, and a planting layer is provided on the straw layer. The salt discharge component includes at least a first water pipe, a second water pipe, and a water pump. The first water pipe is disposed within the isolation layer and has multiple through holes. The second water pipe is connected to the first water pipe, and a connector on the second water pipe is connected to the water pump.
2. The saline-alkali land improvement structure according to claim 1, characterized in that, A liquid level sensor is installed inside the isolation layer, and the liquid level sensor is connected to the water pump.
3. The saline-alkali land improvement structure according to claim 1, characterized in that, The isolation layer includes a gravel layer and a first fine sand layer, wherein the gravel layer is disposed on the saline-alkali soil layer and the first fine sand layer is disposed on the gravel layer.
4. The saline-alkali land improvement structure according to claim 3, characterized in that, At least one overflow hole is provided on the water storage ditch, and a third water pipe is connected to the overflow hole, which extends into the gravel layer.
5. The saline-alkali land improvement structure according to claim 4, characterized in that, The third water pipe is arranged horizontally on a portion of the gravel layer, and multiple drainage holes are provided on the portion of the third water pipe located on the gravel layer.
6. The saline-alkali land improvement structure according to claim 1, characterized in that, A second layer of fine sand is provided between the bottom membrane and the water storage ditch.
7. The saline-alkali land improvement structure according to claim 1, characterized in that, The water storage ditch is equipped with several water-guiding components, one end of which extends into the planting layer.
8. The saline-alkali land improvement structure according to claim 7, characterized in that, The water-guiding component is a strip of cloth or a strip of sponge.