Saline-alkali soil improvement system

Abstract

The utility model provides a saline-alkali soil improvement system, which relates to the technical field of saline-alkali soil improvement, and comprises a saline-alkali soil improvement module, a water resource recycling module, an agricultural waste resource utilization module and an agriculture and animal husbandry planting and breeding module, the vegetation layer is planted at the top of the soil structure, and the water filtering structure is buried in the soil structure and used for filtering out water in the soil structure; the farming and animal husbandry breeding module is arranged on the vegetation layer and is used for breeding livestock and draining water to the soil structure; the water resource recycling module is connected with the water filtering structure, and the water resource recycling module is used for purifying water discharged by the water filtering structure and discharging the purified water to the soil structure and the vegetation layer. The technical problems that in the prior art, the saline-alkali soil treatment and utilization mode is single, the treatment effect is prone to being unstable, and secondary pollution to the environment is prone to being caused are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of saline-alkali soil improvement especially relates to a saline-alkali soil improvement system. BACKGROUND

[0002] Saline-alkali soil is a kind of soil type widely existing in global range, and its soil salt-alkali content is high, which seriously affects the growth of crops.

[0003] In prior art, by taking improvement measures, saline-alkali soil can be gradually converted into land suitable for crop growth, and land resource utilization rate is improved.But in the process of traditional saline-alkali soil utilization, generally, it is single land management or resource utilization technology, with high cost, unstable effect, and easy to cause secondary pollution to environment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a saline-alkali soil improvement system to alleviate the technical problems of single saline-alkali soil management and utilization mode, unstable management effect and easy to cause secondary pollution to environment in prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] Firstly, the utility model provides a saline-alkali soil improvement system, which comprises a saline-alkali soil improvement module, a water resource recycling module, an agricultural waste resource utilization module and an agricultural and pastoral breeding module, the saline-alkali soil improvement module comprises a soil structure, a vegetation layer and a water filtering structure, the vegetation layer is planted on the top of the soil structure, and the water filtering structure is embedded in the soil structure, and the water filtering structure is used to filter water in the soil structure;

[0007] The agricultural and pastoral breeding module is arranged in the vegetation layer, and the agricultural and pastoral breeding module is used to breed livestock and discharge water to the soil structure;

[0008] The water resource recycling module is connected with the water filtering structure, and the water resource recycling module is used to purify the water discharged from the water filtering structure and discharge the purified water to the soil structure and the vegetation layer;

[0009] The agricultural waste resource utilization module is connected with the saline-alkali soil improvement module, and the agricultural waste resource utilization module is used to treat the waste generated by the agricultural and pastoral breeding module into organic matter, so as to arrange the organic matter in the soil structure.

[0010] Further, the saline-alkali soil improvement module comprises a loam layer, a water filtering layer and a drainage layer, the loam layer is planted with the vegetation layer, and the bottom of the loam layer is provided with the water filtering layer;

[0011] The drainage layer is arranged at the bottom of the water filtration layer;

[0012] The water filtration structure is arranged in the water filtration layer and the drainage layer.

[0013] Further, the water filtration structure comprises a water collecting pipe and a plurality of drainage pipes, the plurality of drainage pipes are distributed along a first direction, and the plurality of drainage pipes are buried in the drainage layer.

[0014] The water collecting pipe is distributed along the first direction, and the water collecting pipe is connected with each of the drainage pipes, and the water collecting pipe is connected with the water resource recycling module.

[0015] Further, the pipe wall of each of the drainage pipes is provided with a plurality of water filtration holes.

[0016] Further, the water filtration structure further comprises gravel filter material, the gravel filter material is laid around the corresponding drainage pipe, and the gravel filter material is arranged in the water filtration layer and the drainage layer.

[0017] Further, the water resource recycling module comprises a pretreatment pool, a waste residue pool, a reverse osmosis membrane RO filter pool, a salt storage chamber and a water storage tank, the pretreatment pool is connected with the water filtration structure, and the pretreatment pool is connected with the waste residue pool and the reverse osmosis membrane RO filter pool respectively;

[0018] The reverse osmosis membrane RO filter pool is connected with the salt storage chamber and the water storage tank respectively;

[0019] The water storage tank is provided with a discharge pipe, and the water storage tank discharges water through the discharge pipe.

[0020] Further, the bottom of the pretreatment pool is connected with the waste residue pool through a first communication pipe, and the first communication pipe is used for discharging the waste residue precipitated in the pretreatment pool into the waste residue pool.

[0021] Further, the reverse osmosis membrane RO filter pool is connected with the salt storage chamber through a second communication pipe;

[0022] The reverse osmosis membrane RO filter pool is provided with an RO membrane, and the RO membrane is provided with pores, and the RO membrane is used for filtering out soluble salt, microorganism and / or organic matter in water and discharging into the salt storage chamber.

[0023] Further, the agricultural waste resource utilization module comprises a feeding part, a fermentation room and a waste liquid and waste residue room, the fermentation room is buried in the soil structure, one end of the fermentation room is provided with the feeding part, and the other end is provided with the waste liquid and waste residue room;

[0024] The inlet end of the feeding section and the discharge end between the waste liquid and waste residue are both located above the soil structure.

[0025] Furthermore, the fermentation chamber is provided with an arc-shaped top, and the arc-shaped top is used to contain the biogas inside the fermentation chamber;

[0026] The top of the arc is equipped with a biogas emission pipe, which is used to transport biogas in the fermentation chamber to the water resource recycling module.

[0027] This utility model can achieve the following beneficial effects:

[0028] In a first aspect, this utility model provides a saline-alkali land improvement system, comprising a saline-alkali land improvement module, a water resource recycling module, an agricultural waste resource utilization module, and an agricultural and livestock farming module. The saline-alkali land improvement module includes a soil structure, a vegetation layer, and a filtration structure. The vegetation layer is planted on top of the soil structure, and the filtration structure is buried within the soil structure, used to filter out water from the soil structure. The agricultural and livestock farming module is located within the vegetation layer and is used to raise livestock and drain water into the soil structure. The water resource recycling module is connected to the filtration structure and is used to purify the water discharged from the filtration structure and discharge the purified water into the soil structure and the vegetation layer. The agricultural waste resource utilization module is connected to the saline-alkali land improvement module and is used to treat the waste generated by the agricultural and livestock farming module into organic matter, which is then incorporated into the soil structure.

[0029] In this invention, the saline-alkali land improvement module includes a soil structure, a vegetation layer, and a filtration structure. Specifically, the vegetation layer is planted on the soil structure, while the filtration structure is located below the soil structure. An area is enclosed on the vegetation layer to serve as an agricultural and livestock farming module. Agriculture and livestock farming are developed through the planting of vegetation. Wastewater generated by the agricultural and livestock farming module can be treated by a water resource recycling module, and the treated freshwater can then be used to irrigate the saline-alkali land improvement module to initially improve the soil salinity. Crop straw and livestock manure generated by the agricultural and livestock farming module can be transported as waste to an agricultural waste resource utilization module. The agricultural waste resource utilization module is used to degrade and ferment the crop straw and livestock manure to produce biogas and fermentation liquid.

[0030] Compared with the prior art, the saline-alkali soil improvement system provided by the utility model plants crops and breeds poultry on the saline-alkali soil improvement module, and the generated agricultural and pastoral wastewater is purified through the water resource recycling module, so that the generated fresh water can irrigate the saline-alkali soil improvement module to improve the salinization degree of the saline-alkali soil improvement module; and the agricultural waste resource utilization module can process the crop kudzu vine and poultry manure generated by the agricultural and pastoral breeding module to generate biogas and fermentation liquor, realize waste reuse, and avoid causing secondary pollution.

[0031] To sum up, the utility model at least alleviates the technical problems of the prior art that the saline-alkali soil treatment and utilization mode is single, the treatment effect is unstable, and the environment is easily secondarily polluted. ACCURACY

[0032] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0033] Figure 1 The use flow chart of the saline-alkali soil improvement system provided by the utility model embodiment is shown in the figure.

[0034] Figure 2 The structure schematic view of the saline-alkali soil improvement module of the saline-alkali soil improvement system provided by the utility model embodiment is shown in the figure.

[0035] Figure 3 The structure schematic view of the drain pipe of the saline-alkali soil improvement module of the saline-alkali soil improvement system provided by the utility model embodiment is shown in the figure.

[0036] Figure 4 The structure schematic view of the water resource recycling module of the saline-alkali soil improvement system provided by the utility model embodiment is shown in the figure.

[0037] Figure 5 The structure schematic view of the agricultural waste resource utilization module of the saline-alkali soil improvement system provided by the utility model embodiment is shown in the figure.

[0038] Icon: 1-saline land improvement module; 11-soil structure; 111-loam layer; 112-water filtering layer; 113-drainage layer; 12-vegetation layer; 13-water filtering structure; 131-sandstone filtering material; 132-drainage pipe; 1321-water filtering hole; 133-catchment pipe; 2-water resource recycling module; 21-pre-treatment pool; 22-waste residue pool; 23-RO filter pool; 24-salt storage room; 25-water storage tank; 3-agricultural waste resource utilization module; 31-feeding part; 32-fermentation room; 321-biogas discharge pipe; 33-waste liquid and residue room. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0041] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0042] In the description of the present application, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0043] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0044] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term " set ", " install ", " connect " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through intermediate medium indirectly connect, can be two element internal communication.For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0045] The utility model will be described in detail below in combination with some embodiments of the utility model. In the case of no conflict, the following examples and features in examples can be combined with each other.

[0046] Example one

[0047] The embodiment provides a saline-alkali soil improvement system, referring to Figure 1 And Figure 2 The saline-alkali soil improvement system comprises a saline-alkali soil improvement module 1, a water resource recycling module 2, an agricultural waste resource utilization module 3 and an agricultural and pastoral breeding module, the saline-alkali soil improvement module 1 comprises a soil structure 11, a vegetation layer 12 and a water filtering structure 13, the vegetation layer 12 is planted on the top of the soil structure 11, and the water filtering structure 13 is embedded in the soil structure 11, and the water filtering structure 13 is used for filtering water in the soil structure 11;The agricultural and pastoral breeding module is arranged on the vegetation layer 12, and the agricultural and pastoral breeding module is used for breeding livestock and discharging water to the soil structure 11;The water resource recycling module 2 is connected with the water filtering structure 13, and the water resource recycling module 2 is used for purifying water discharged from the water filtering structure 13 and discharging the purified water to the soil structure 11 and the vegetation layer 12;The agricultural waste resource utilization module 3 is connected with the saline-alkali soil improvement module 1, and the agricultural waste resource utilization module 3 is used for treating waste generated by the agricultural and pastoral breeding module into organic matter to arrange the organic matter in the soil structure 11.

[0048] In the embodiment of the utility model, saline-alkali soil improvement module 1 includes soil structure 11, vegetation layer 12 and filter water structure 13, specifically, vegetation layer 12 is planted on soil structure 11, and filter water structure 13 is arranged below soil structure 11;A region is surrounded on vegetation layer 12 to be used as farming and breeding module, farming and breeding module is developed through vegetation layer 12, and the sewage produced by farming and breeding module can be treated through water resource recycling module 2, and the treated fresh water is used to irrigate saline-alkali soil improvement module 1 again, to realize the function of preliminary improvement of soil salinity of saline-alkali soil improvement module 1;Crop straw and poultry manure produced by farming and breeding module can be transported to agricultural waste resource utilization module 3 as waste, and agricultural waste resource utilization module 3 is used to degrade and ferment crop straw and poultry manure, and produce biogas and fermentation liquor.

[0049] Farming and breeding module mainly plants salt-tolerant crops and pasture, such as sweet sorghum and sesbania, absorbs salt through plant root system, reduces soil salt content, and provides food for cattle and sheep.

[0050] Compared with the prior art, the saline-alkali soil improvement system provided by the embodiment of the utility model plants crops and breeds poultry on saline-alkali soil improvement module 1, purifies the farming and breeding wastewater through water resource recycling module 2, so that the produced fresh water can irrigate saline-alkali soil improvement module 1 to improve the salinization degree of saline-alkali soil improvement module 1;And agricultural waste resource utilization module 3 can treat crop straw and poultry manure produced by farming and breeding module to produce biogas and fermentation liquor, realize waste reuse, and avoid secondary pollution.

[0051] In the optional implementation of the embodiment, referring to Figure 2 , saline-alkali soil improvement module 1 includes loam layer 111, filter water layer 112 and drainage layer 113, loam layer 111 is planted with vegetation layer 12, and the bottom of loam layer 111 is provided with filter water layer 112;Drainage layer 113 is arranged at the bottom of filter water layer 112;Filter water structure 13 is arranged in filter water layer 112 and drainage layer 113.

[0052] Specifically, saline-alkali soil improvement module 1 is sequentially provided with loam layer 111, filter water layer 112 and drainage layer 113 from top to bottom, loam layer 111 is used for planting vegetation layer 12, and the crops planted on vegetation layer 12 and the poultry bred can pass water through loam layer 111, filter water layer 112 to drainage layer 113, and then discharge to water resource recycling module 2.

[0053] Further, referring to Figure 1The water filtering structure 13 comprises a water collecting pipe 133 and a plurality of water drainage pipes 132, the plurality of water drainage pipes 132 are distributed along the first direction at intervals, and the plurality of water drainage pipes 132 are buried in the water drainage layer 113; the water collecting pipe 133 is distributed along the first direction, and the water collecting pipe 133 is connected with each water drainage pipe 132 respectively, and the water collecting pipe 133 is connected with the water resource recycling module 2.

[0054] Specifically, the plurality of water drainage pipes 132 are distributed along the first direction at intervals, and the interval distance can be 30 meters, and the water drainage pipe 132 is buried at a depth of 2 meters and adopts a PVC pipe with a pipe diameter of 80 mm. The plurality of water drainage pipes 132 are connected with the water collecting pipe 133 with a pipe diameter of 140 mm, and the water collecting pipe 133 can be buried at a depth of 2.5 meters, so as to collect the water of the plurality of water drainage pipes 132 and discharge the water to the water resource recycling module 2.

[0055] Further, referring to Figure 3 , the pipe wall of each water drainage pipe 132 is provided with a plurality of water filtering holes 1321.

[0056] Specifically, the pipe wall of each water drainage pipe 132 is provided with a plurality of water filtering holes 1321 along the extension direction of the pipe wall, so as to facilitate the water in the water drainage layer 113 to flow into the corresponding water drainage pipe 132.

[0057] In an optional embodiment of the present embodiment, referring to Figure 2 , the water filtering structure 13 further comprises gravel filter material 131, the gravel filter material 131 is laid around the corresponding water drainage pipe 132, and the gravel filter material 131 is arranged in the water filtering layer 112 and the water drainage layer 113.

[0058] Specifically, the gravel filter material 131 in a trapezoidal shape is laid around the water drainage pipe 132, so as to prevent soil particles from entering the water drainage pipe 132 and causing blockage, thereby enhancing the water drainage effect.

[0059] In an optional embodiment of the present embodiment, referring to Figure 4 , the water resource recycling module 2 comprises a pretreatment pool 21, a waste residue pool 22, a reverse osmosis membrane RO filter pool 23, a salt storage chamber 24 and a water storage tank 25, the pretreatment pool 21 is connected with the water filtering structure 13, and the pretreatment pool 21 is connected with the waste residue pool 22 and the reverse osmosis membrane RO filter pool 23 respectively; the reverse osmosis membrane RO filter pool 23 is connected with the salt storage chamber 24 and the water storage tank 25 respectively; the water storage tank 25 is provided with a discharge pipe, and the water storage tank 25 discharges water through the discharge pipe.

[0060] Specifically, the pretreatment pool 21 is used to receive the saline-alkali water in the water collecting pipe 133, and the suspended solids, silt and particulate matters in the water are removed by the multi-medium filter, and then discharged into the waste residue pool 22; the filtrate is discharged into the reverse osmosis membrane RO filter pool 23 through the pipeline, and under sufficient pressure, the water molecules pass through the small pores of the RO membrane, while the soluble salt, microorganism and organic matter in the water are effectively intercepted and excluded and stored in the salt storage room 24, and the fresh water obtained after secondary filtration is stored in the water storage tank 25; when irrigation is needed, the purified fresh water is delivered to the irrigation system through the pipeline for sprinkling irrigation for saline-alkali soil, so as to realize the recycling of water resources.

[0061] Further, referring to Figure 4 , the bottom of the pretreatment pool 21 is connected with the waste residue pool 22 through the first communication pipe, and the first communication pipe is used to discharge the waste residue deposited in the pretreatment pool 21 into the waste residue pool 22.

[0062] Specifically, the bottom of the pretreatment pool 21 is funnel-shaped, and the center of the bottom is connected with the waste residue pool 22 through the first communication pipe, so as to facilitate the discharge of the waste residue into the waste residue pool 22.

[0063] In the optional implementation of the embodiment, referring to Figure 4 , the reverse osmosis membrane RO filter pool 23 is connected with the salt storage room 24 through the second communication pipe; the RO membrane is arranged in the reverse osmosis membrane RO filter pool 23, and the RO membrane is provided with pores, and the RO membrane is used to filter out the soluble salt, microorganism and / or organic matter in the water and discharge them into the salt storage room 24.

[0064] Specifically, the RO membrane is arranged in the horizontal and vertical directions, so as to sufficiently filter out the soluble salt, microorganism and / or organic matter in the water and discharge them into the salt storage room 24.

[0065] In the optional implementation of the embodiment, referring to Figure 5 , the agricultural waste resource utilization module 3 includes a feeding part 31, a fermentation chamber 32 and a waste liquid and waste residue chamber 33, the fermentation chamber 32 is buried in the soil structure 11, one end of the fermentation chamber 32 is provided with the feeding part 31, and the other end is provided with the waste liquid and waste residue chamber 33; the inlet end of the feeding part 31 and the discharge end of the waste liquid and waste residue chamber 33 are arranged above the soil structure 11.

[0066] Specifically, the waste such as straw and livestock manure generated in the production process of the agricultural and livestock breeding module is treated by using the anaerobic fermentation technology. The waste is pretreated by the feeding part 31, and the chopped raw material is fed into the fermentation chamber 32 from the pipeline to degrade and ferment the organic matter, to generate biogas and fermentation liquid. The biogas is released from the fermentation chamber 32 into the biogas collection system at the top of the fermentation chamber 32 to provide sufficient pressure for the clean energy supply. The fermentation liquid is one of the by-products of the biogas process, and the liquid enters the waste liquid and residue chamber 33 to be treated by using the anaerobic digestion method, so as to be decomposed into sediment and liquid fertilizer. The sediment can be used as organic fertilizer, and the liquid fertilizer can be used for farmland irrigation.

[0067] Further, referring to Figure 5 , the fermentation chamber 32 is provided with an arc top portion, and the arc top portion is used to accommodate the biogas in the fermentation chamber 32. The arc top portion is provided with a biogas discharge pipe 321, and the biogas discharge pipe 321 is used to transport the biogas in the fermentation chamber 32 to the water resource recycling module 2.

[0068] Specifically, the fermentation chamber 32 is provided with an arc top portion, and the arc top portion is provided with a biogas collection system. The biogas discharge pipe 321 transports the biogas of the biogas collection system to the water resource recycling module 2.

[0069] The saline-alkali soil improvement system also includes an intelligent monitoring and feedback module. The intelligent monitoring and feedback module uses sensors to monitor the soil salinity and pH value of the saline-alkali soil in real time. When the soil salinity is too high, the irrigation system can be intelligently triggered to use purified fresh water for sprinkling irrigation to reduce the soil salinity. If the soil pH value deviates from the suitable range for crops, the fertilization scheme can be automatically adjusted to apply lime or gypsum and other adjusting agents to neutralize the soil acidity and alkalinity. According to the soil conditions of each area of saline-alkali soil, the adaptability and economic benefits of crop growth are evaluated, and crops that are most suitable for the soil conditions of each area are planted to optimize the crop planting structure.

[0070] The soil water content and nutrient status are monitored by sensors. According to the crop growth needs and soil water conditions, the intelligent control of the sprinkling irrigation amount is realized to achieve precise irrigation and avoid water waste. The nutrient changes are monitored in real time, and fertilization is applied as needed to improve the fertilizer utilization rate.

[0071] The water consumption during the irrigation process is monitored by the flow sensor of the intelligent monitoring and feedback module to ensure that the irrigation water amount meets the crop needs and is not excessively wasted.

[0072] The operation state of the drainage system is monitored in real time by the drainage monitoring of the intelligent monitoring and feedback module to timely discover and warn potential faults or blockage problems to avoid water waste.

[0073] The comprehensive information management system of the intelligent monitoring and feedback module integrates sensor, Internet of Things, big data and other technologies. The sensor collects, processes and analyzes the data of soil, water, weather, crop growth and other data of the saline-alkali soil in real time. Based on the data analysis result of the Internet of Things algorithm, a scientific scheme is provided for the saline-alkali soil improvement and resource utilization, so as to realize long-term stable operation and benefit maximization of the saline-alkali soil utilization circular economy system. An information sharing platform is established to promote data sharing and cooperation between scientific research institutions and different regions.

[0074] Finally, it should be noted that: each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to each other. The above embodiments in the specification are used to illustrate the technical solutions of the utility model, but not to limit them. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently. The modification or replacement does not change the essence of the corresponding technical solution, and does not deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A system for improving saline soils, characterized in that, The system comprises a saline-alkali soil improvement module (1), a water resource recycling module (2), an agricultural waste resource utilization module (3) and an agricultural and pastoral breeding module, the saline-alkali soil improvement module (1) comprises a soil structure (11), a vegetation layer (12) and a water filtering structure (13), the vegetation layer (12) is planted on the top of the soil structure (11), and the water filtering structure (13) is embedded in the soil structure (11), and the water filtering structure (13) is used for filtering water in the soil structure (11); The agricultural and pastoral breeding module is arranged in the vegetation layer (12), and the agricultural and pastoral breeding module is used for breeding livestock and draining water to the soil structure (11); The water resource recycling module (2) is connected with the water filtering structure (13), and the water resource recycling module (2) is used for purifying the water discharged from the water filtering structure (13) and discharging the purified water to the soil structure (11) and the vegetation layer (12); The agricultural waste resource utilization module (3) is connected with the saline-alkali soil improvement module (1), and the agricultural waste resource utilization module (3) is used for treating the waste generated by the agricultural and pastoral breeding module into organic matter, so as to arrange the organic matter in the soil structure (11).

2. The system for improving saline soil according to claim 1, wherein The saline-alkali soil improvement module (1) comprises a loam layer (111), a water filtering layer (112) and a drainage layer (113), the loam layer (111) is planted with the vegetation layer (12), and the bottom of the loam layer (111) is provided with the water filtering layer (112); The drainage layer (113) is arranged at the bottom of the water filtering layer (112); The water filtering structure (13) is arranged in the water filtering layer (112) and the drainage layer (113).

3. The system for saline soil reclamation according to claim 2, characterized in that, The water filtering structure (13) comprises a water collecting pipe (133) and a plurality of drainage pipes (132), the plurality of drainage pipes (132) are distributed along a first direction, and the plurality of drainage pipes (132) are embedded in the drainage layer (113); The water collecting pipe (133) is distributed along the first direction, and the water collecting pipe (133) is connected with each drainage pipe (132) respectively, and the water collecting pipe (133) is connected with the water resource recycling module (2).

4. The system for saline soil reclamation according to claim 3, characterized in that, Each drainage pipe (132) is provided with a plurality of water filtering holes (1321) in the pipe wall.

5. The system for saline soil reclamation according to claim 3, characterized in that, The water filtering structure (13) further comprises a sandstone filter material (131), the sandstone filter material (131) is arranged around the corresponding drainage pipe (132), and the sandstone filter material (131) is arranged in the water filtering layer (112) and the drainage layer (113).

6. The system for saline soil reclamation according to claim 1, characterized in that, The water resource recycling module (2) comprises a pretreatment pool (21), a waste residue pool (22), a reverse osmosis membrane RO filter pool (23), a salt storage chamber (24) and a water storage tank (25), the pretreatment pool (21) is connected with the water filtering structure (13), and the pretreatment pool (21) is connected with the waste residue pool (22) and the reverse osmosis membrane RO filter pool (23) respectively; The reverse osmosis membrane RO filter tank (23) is connected with the salt storage chamber (24) and the water storage tank (25) respectively. The water storage tank (25) is provided with a discharge pipe, and the water storage tank (25) discharges water through the discharge pipe.

7. The system for saline soil reclamation according to claim 6, characterized in that, The bottom of the pretreatment tank (21) is connected with the waste residue tank (22) through a first communication pipe, and the first communication pipe is used for discharging the waste residue of the pretreatment tank (21) into the waste residue tank (22).

8. The system for saline soil reclamation according to claim 6, characterized in that, The reverse osmosis membrane RO filter tank (23) is connected with the salt storage chamber (24) through a second communication pipe. The reverse osmosis membrane RO filter tank (23) is provided with an RO membrane, and the RO membrane is provided with pores, and the RO membrane is used for filtering out soluble salt, microorganism and / or organic matter in water and discharging into the salt storage chamber (24).

9. The system for saline soil reclamation according to claim 1, characterized in that, The agricultural waste resource utilization module (3) comprises a feeding part (31), a fermentation chamber (32) and a waste liquid and waste residue chamber (33), the fermentation chamber (32) is embedded in the soil structure (11), one end of the fermentation chamber (32) is provided with the feeding part (31), and the other end is provided with the waste liquid and waste residue chamber (33). The inlet end of the feeding part (31) and the discharge end of the waste liquid and waste residue chamber (33) are arranged above the soil structure (11).

10. The system for saline soil reclamation according to claim 9, characterized in that, The fermentation chamber (32) is provided with an arc top, and the arc top is used for accommodating biogas in the fermentation chamber (32). The arc top is provided with a biogas discharge pipe (321), and the biogas discharge pipe (321) is used for conveying the biogas in the fermentation chamber (32) to the water resource recycling module (2).

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