Saline-alkali soil improvement system and improvement method for combined control of agriculture, forestry and animal husbandry planting

Abstract

The invention relates to the technical field of saline-alkali soil improvement, and discloses a saline-alkali soil improvement system and method for combined control of agriculture, forestry, animal husbandry, planting, breeding and breeding, and the saline-alkali soil improvement system for combined control of agriculture, forestry, animal husbandry, planting and breeding comprises a first planting area; a drip irrigation assembly; a water seepage assembly; the drainage channel is arranged below the surface of the saline-alkali soil corresponding to the first planting area; and a first flow guide member. According to the method, salt-tolerant plants are planted in the saline-alkali soil, so that the infiltration capacity of water in the soil can be improved, and absorption and leaching of salt in the soil are promoted; the drip irrigation assembly is adopted to irrigate the salt-tolerant plants, and water molecule movement can bring salt in soil to the deep position of the soil, so that the salt return phenomenon caused by the capillary action of water molecules is avoided; by arranging the water seepage assembly, the movement speed and the conveying effect of saline-alkali water in soil conveyed to the drainage channel can be increased, and infiltration and collection of the saline-alkali water are accelerated; by arranging the drainage channel, saline-alkaline water in the soil can be absorbed and discharged.

Description

Technical Field

[0001] The present invention relates to the technical field of saline-alkali land improvement, and in particular to a saline-alkali land improvement system and an improvement method for integrated control of agriculture, forestry, animal husbandry and breeding. Background Art

[0002] Saline-alkali land has excessively high carbonate content such as sodium and magnesium ions in the soil, which seriously affects the normal absorption of water and nutrients by crops, causing poor growth or difficulty in growing crops, resulting in serious yield reduction or even total loss, thereby reducing land utilization rate.

[0003] At present, the improvement measures for saline-alkali land include: physical measures such as covering with sand and soil, micro-area soil improvement, ground cover, straw cover, deep plowing and deep turning; chemical measures such as adding additives such as ferrous sulfate, sulfur powder or gypsum sulfate to the soil and applying organic fertilizer to lower the soil pH; biological measures such as using halophilic microbial fertilizers and planting salt-tolerant plants; water conservancy measures such as irrigation and drainage coordination and sub-membrane drip irrigation.

[0004] However, the construction of the above-mentioned physical measures alone is difficult and the construction efficiency is low; the cost of the above-mentioned chemical measures alone is high; the above-mentioned biological measures alone are slow to take effect and have a long cycle; the coordinated irrigation and drainage measures of pre-buried concealed pipes and vertical shafts alone, although the salt removal effect is significant, the water resource consumption is large; and the sub-membrane drip irrigation measures alone, although it reduces the waste of water resources and improves the utilization rate of water resources, for areas with shallow groundwater depth, the surface layer is still prone to salt regurgitation. Summary of the invention

[0005] In view of this, the present invention provides a saline-alkali land improvement system and improvement method for integrated control of agriculture, forestry, animal husbandry and breeding, so as to solve the problems of difficulty, low efficiency, high cost, long cycle, large water resource consumption and easy salt reversion in the surface layer of areas with shallow groundwater depth in saline-alkali land improvement.

[0006] In a first aspect, the present invention provides a saline-alkali land improvement system for integrated control of agriculture, forestry, animal husbandry, and breeding, which is used to improve saline-alkali land, and comprises:

[0007] The first planting area is located on the saline-alkali land and is used to plant salt-tolerant plants;

[0008] A drip irrigation assembly is arranged above the saline-alkali land, the drip irrigation assembly comprises a drip irrigation port, and the drip irrigation port is arranged corresponding to the root of the salt-tolerant plant;

[0009] A water seepage component, the water seepage component comprising a water seepage port, the water seepage port being arranged below the surface of the saline-alkali land;

[0010] a drainage channel disposed below the surface of the saline-alkali land corresponding to the first planting area, and a top end of the drainage channel disposed at the surface of the saline-alkali land;

[0011] The first guide member is connected to the bottom end of the drainage channel and is used to drain the saline water.

[0012] Beneficial effects: By planting salt-tolerant plants in saline-alkali land, the soil microbial flora of saline-alkali land can be improved, the activity of microorganisms in the soil can be increased, the synthesis of organic matter in the soil can be promoted, the soil bulk density can be reduced, the porosity of the soil can be increased, and the water penetration capacity of the soil can be improved, the absorption and leaching of salt in the soil can be promoted, and the evaporation of water in the soil can be reduced; by using drip irrigation components to irrigate salt-tolerant plants, the utilization efficiency of water resources can be improved, and the movement of water molecules can bring the salt in the soil to the deep soil to avoid the occurrence of anti-salt phenomenon caused by the capillary action of water molecules; by setting up infiltration components, the movement speed and transportation effect of saline-alkali water in the soil to the drainage channel can be increased, the infiltration and collection of saline-alkali water can be accelerated, and the rapid salinization of the soil caused by the shallow groundwater level can be prevented; by setting up drainage channels, the saline-alkali water in the soil can be absorbed and discharged, thereby quickly reducing the salinization of the soil.

[0013] In an optional embodiment, the drainage channel is provided with a plurality of;

[0014] And / or, the drainage channel is filled with a water-permeable medium.

[0015] Beneficial effect: By setting up multiple drainage channels, the absorption of saline-alkali water can be accelerated, thereby shortening the time for improving saline-alkali land.

[0016] In an optional embodiment, the water-permeable medium includes:

[0017] Solid particles are arranged at the bottom end of the drainage channel;

[0018] And / or, organic fertilizer is arranged near the top of the drainage channel.

[0019] Beneficial effects: By arranging solid particles at the bottom of the drainage channel, the water permeability of the drainage channel can be enhanced, thereby accelerating the absorption of saline water; by arranging organic fertilizers above the solid particles, organic matter can be provided to the soil, thereby providing nutrients for salt-tolerant plants.

[0020] In an optional embodiment, the solid particles are sand particles;

[0021] And / or, the organic fertilizer is straw;

[0022] And / or, the maximum size of the solid particles is 1 mm.

[0023] In an optional embodiment, the water seepage component includes:

[0024] A first main pipe is arranged above the saline-alkali land;

[0025] One end of the first branch pipe is connected to the first main pipe, and the other end extends below the surface of the saline-alkali land. The first branch pipe is provided with a plurality of seepage ports at intervals.

[0026] In an optional embodiment, the saline-alkali land improvement system for integrated control of agriculture, forestry, animal husbandry and breeding includes:

[0027] A saline-alkali water desalination component, connected to the first guide member, and used for treating the saline-alkali water into brackish water and slightly salty water;

[0028] a second flow guide, one end of which is connected to the saline-alkali water desalination component and the other end of which extends to the first planting area, and is used for irrigating the brackish water to the first planting area;

[0029] And / or, a brackish water treatment component is connected to the saline water desalination component to perform evaporation and crystallization treatment on the brackish water.

[0030] Beneficial effects: By desalinating saline water and using the desalinated brackish water for irrigation in the first planting area, water resources can be recycled and resource utilization efficiency can be improved; by evaporating and crystallizing brackish water, solid salt particles can be extracted as cattle and sheep feed additives and chemical raw materials.

[0031] In an optional embodiment, the saline-alkali land improvement system for integrated control of agriculture, forestry, animal husbandry and breeding includes:

[0032] The power generation component is electrically connected to the saline-alkali water desalination component and is used to provide electrical energy to the saline-alkali water desalination component.

[0033] Beneficial effect: By setting up the power generation component, it is more convenient to provide electric energy for the saline-alkali water desalination component.

[0034] In an optional embodiment, the saline-alkali land improvement system for integrated control of agriculture, forestry, animal husbandry and breeding includes:

[0035] A livestock area is set up on the saline-alkali land for grazing;

[0036] and / or, an energy storage component, one end of which is electrically connected to the power generation component and the other end of which is electrically connected to the saline-alkali water desalination component, for storing electrical energy;

[0037] And / or, the power generation component includes a plurality of photovoltaic panels.

[0038] Beneficial effects: By setting up livestock areas, animal excrement collected in livestock areas can be applied to saline-alkali land to improve soil fertility of saline-alkali land, reduce the use of chemical fertilizers, and promote soil acid-base balance; by setting up energy storage components, the electric energy generated by the power generation components can be stored, thereby ensuring the supply of electricity in various environments.

[0039] In an optional embodiment, the saline-alkali land improvement system for integrated control of agriculture, forestry, animal husbandry and breeding includes:

[0040] The second planting area is arranged on the saline-alkali land and below the photovoltaic panel, and is used to provide forage for the livestock area.

[0041] Beneficial effect: By planting grass under the photovoltaic panels, it is possible to provide feed for livestock areas, thereby improving land use efficiency.

[0042] In a second aspect, the present invention further provides a method for improving saline-alkali land by integrated control of agriculture, forestry, animal husbandry, breeding and farming, which is applied to the above-mentioned saline-alkali land improvement system by integrated control of agriculture, forestry, animal husbandry, breeding and farming, and comprises:

[0043] Initially determining the salinity of the saline-alkali land;

[0044] Planting the salt-tolerant plants in the first planting area;

[0045] The drip irrigation assembly irrigates the salt-tolerant plants;

[0046] The water seepage component drains the saline-alkali water on the surface of the saline-alkali land to the drainage channel;

[0047] The saline-alkali water is discharged through the first flow guide;

[0048] The salinity of the saline-alkali land is measured again until it meets the preset standard.

[0049] Beneficial effects: Because the saline-alkali land improvement method of agriculture, forestry, animal husbandry and breeding integrated control is applied to the saline-alkali land improvement system of agriculture, forestry, animal husbandry and breeding integrated control, it has the same effect as the saline-alkali land improvement system of agriculture, forestry, animal husbandry and breeding integrated control, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 A top view of a saline-alkali land improvement system for agriculture, forestry, animal husbandry, and breeding combined control according to an embodiment of the present invention;

[0052] Figure 2 for Figure 1 The front view of the saline-alkali land improvement system with integrated control of agriculture, forestry, animal husbandry and breeding is shown;

[0053] Figure 3 for Figure 1 The left side cross-sectional view of the saline-alkali land improvement system with integrated control of agriculture, forestry, animal husbandry and breeding is shown;

[0054] Figure 4 for Figure 1 The ecological cycle diagram of the saline-alkali land improvement system with integrated control of agriculture, forestry, animal husbandry and breeding is shown.

[0055] Description of reference numerals:

[0056] 1. Saline-alkali land; 2. First planting area; 3. Drip irrigation assembly; 4. Seepage assembly; 401. First main pipe; 402. First branch pipe; 5. Drainage channel; 6. First guide piece; 7. Solid particles; 8. Organic fertilizer; 9. Saline-alkali water desalination assembly; 10. Second guide piece; 11. Brackish water treatment assembly; 12. Power generation assembly; 1201. Photovoltaic panel; 13. Livestock area; 14. Energy storage component; 15. Second planting area; 16. Ecological vegetation. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0058] Combine the following Figures 1 to 4 , describing an embodiment of the present invention.

[0059] According to an embodiment of the present invention, on the one hand, a saline-alkali land improvement system for integrated control of agriculture, forestry, animal husbandry and breeding is provided, which is used to improve the saline-alkali land 1, including: a first planting area 2, arranged on the saline-alkali land 1, for planting salt-tolerant plants; a drip irrigation component 3, arranged above the saline-alkali land 1, the drip irrigation component 3 includes a drip irrigation port, and the drip irrigation port is arranged corresponding to the root of the salt-tolerant plant; a seepage component 4, the seepage component 4 includes a seepage port, and the seepage port is arranged below the surface of the saline-alkali land 1; a drainage channel 5, arranged below the surface of the saline-alkali land 1 corresponding to the first planting area 2, and the top of the drainage channel 5 is arranged at the surface of the saline-alkali land 1; a first guide member 6, connected to the bottom end of the drainage channel 5, for draining the saline water.

[0060] By planting salt-tolerant plants in the saline-alkali land 1, the soil microbial flora of the saline-alkali land 1 can be improved, the activity of microorganisms in the soil can be increased, the synthesis of organic matter in the soil can be promoted, the soil bulk density can be reduced, the soil porosity can be increased, and the water penetration capacity in the soil can be improved, the absorption and leaching of salt in the soil can be promoted, and the evaporation of water in the soil can be reduced; by using the drip irrigation component 3 to irrigate the salt-tolerant plants, the utilization efficiency of water resources can be improved, and the movement of water molecules can bring the salt in the soil to the deep soil to avoid the occurrence of the reverse salt phenomenon caused by the capillary action of water molecules; by setting the infiltration component 4, the movement speed and transportation effect of the saline-alkali water in the soil to the drainage channel 5 can be increased, the infiltration and collection of the saline-alkali water can be accelerated, and the rapid salinization of the soil caused by the shallow groundwater level can be prevented; by setting the drainage channel 5, the saline-alkali water in the soil can be absorbed and discharged, thereby quickly reducing the salinization of the soil.

[0061] In one embodiment, the saline-alkali land 1 selects a plot with a high degree of surface salinization, a groundwater depth of 2m-4m, and a slope of 1 / 800-1 / 400. Before improving the saline-alkali land 1, deep plowing is first carried out mechanically to make the surface soil soft and the sub-surface soil relatively compact, and the soil is finely broken without large pieces. Among them, the surface layer is the range of 0cm-30cm below the surface of the saline-alkali land 1, and the sub-surface layer is the range of 30cm-60cm below the surface of the saline-alkali land 1. As a convertible embodiment, the groundwater depth of the saline-alkali land 1 can also be 1.5m or 4.5m, which is not too limited here. As a convertible embodiment, the slope of the saline-alkali land 1 can also be 1 / 900 or 1 / 300, which is not too limited here.

[0062] like Figure 1-Figure 3 As shown, salt-tolerant plants include sunflower and Suaeda salsa, which are planted along the first planting area 2. Figure 1 The vertical intercropping is carried out in rows. The row spacing of oil sunflower is 60 cm, and the plant spacing is 25 cm; two rows of Suaeda salsa are planted between every two rows of oil sunflower, and the wide row spacing of Suaeda salsa is 40 cm, the narrow row spacing is 20 cm, and the plant spacing is 6 cm. By planting two salt-tolerant plants, the land coverage rate can be increased, the plant diversity can be increased, and the land utilization efficiency can be improved. As a convertible implementation method, only Suaeda salsa, or only oil sunflower, or other salt-tolerant plants such as Salicornia herba can also be planted, without too many restrictions here.

[0063] like Figure 1-Figure 2 As shown, in one embodiment, the drip irrigation assembly 3 includes a second main pipe and a second branch pipe, one end of the second branch pipe is connected to the second main pipe, and the other end is provided with a drip irrigation port, the drip irrigation port is fixed near the root of the salt-tolerant plant, and a plurality of second branch pipes are arranged at intervals. The second main pipe is arranged along the planting row direction of the first planting area 2 (i.e. Figure 1The second main pipe is a polyethylene pipe with a diameter of 30 mm, and the second branch pipe is a polyethylene pipe with a diameter of 16 mm. As a convertible embodiment, the second main pipe can also be arranged in a direction perpendicular to the planting row of the first planting area 2 (i.e. Figure 1 As a convertible embodiment, the diameter of the second main pipe can also be 25mm or 35mm, without too many restrictions. As a convertible embodiment, the diameter of the second branch pipe can also be 15mm or 17mm, without too many restrictions. As a convertible embodiment, the material of the second main pipe and the second branch pipe can also be polyvinyl chloride or polypropylene, without too many restrictions.

[0064] like Figure 3 As shown, in one embodiment, the water infiltration assembly 4 includes: a first main pipe 401, which is arranged above the saline-alkali land 1; a first branch pipe 402, one end of which is connected to the first main pipe 401 and the other end of which extends below the surface of the saline-alkali land 1, and a plurality of water infiltration ports are arranged at intervals on the first branch pipe 402. The first main pipe 401 is arranged along the planting row direction of the first planting area 2 (i.e. Figure 3 The first branch pipe 402 is arranged along the horizontal direction of Figure 3 The first branch pipe 402 is arranged in the vertical direction; the first branch pipe 402 is arranged in multiple intervals, the length of the first branch pipe 402 is 90cm, and the spacing distance of the seepage ports on the first branch pipe 402 is 20cm; the first main pipe 401 and the first branch pipe 402 are both polyethylene pipes with a diameter of 16mm. As a convertible embodiment, the first main pipe 401 can also be arranged along the planting row direction perpendicular to the first planting area 2, without too many restrictions here. As a convertible embodiment, the length of the first branch pipe 402 can also be 80cm or 100cm, without too many restrictions here. As a convertible embodiment, the spacing distance of the seepage ports on the first branch pipe 402 can also be 15cm or 25cm, without too many restrictions here. As a convertible embodiment, the diameters of the first main pipe 401 and the first branch pipe 402 can also be 15mm or 17mm, without too many restrictions here. As a convertible embodiment, the material of the first main pipe 401 and the first branch pipe 402 can also be polyvinyl chloride or polypropylene, without too many restrictions here.

[0065] like Figure 1-Figure 2 As shown, in one embodiment, a plurality of drainage channels 5 are provided. The drainage channels 5 are arranged along the planting row direction of the first planting area 2 (i.e. Figure 1The vertical direction of the drainage channel 5 is arranged, the interval between two adjacent drainage channels 5 is 2m, and a water seepage component 4 is arranged between each two adjacent drainage channels 5. By arranging multiple drainage channels 5, the absorption of saline-alkali water can be accelerated, thereby shortening the time for improving the saline-alkali land 1. As a convertible embodiment, the interval between two adjacent drainage channels 5 can also be 1.5m or 2.5m, and no excessive restrictions are made here.

[0066] like Figure 3 As shown, in one embodiment, the drainage channel 5 is filled with a water-permeable medium. Specifically, the water-permeable medium includes: solid particles 7, which are arranged at the bottom end of the drainage channel 5; and organic fertilizers 8, which are arranged near the top of the drainage channel 5. Among them, the organic fertilizers 8 are arranged above the solid particles 7; the solid particles 7 are sand particles, and the organic fertilizers 8 are straws; the maximum size of the solid particles 7 is 1 mm. Further, the depth of the drainage channel 5 is 1 m, and sand particles with a depth of 70 cm are buried at the bottom end of the drainage channel 5, and straw particles with a depth of 30 cm are buried above the sand layer. By arranging solid particles 7 at the bottom end of the drainage channel 5, the water permeability of the drainage channel 5 can be enhanced, thereby accelerating the absorption of saline water; by arranging organic fertilizers 8 above the solid particles 7, organic matter can be provided to the soil, thereby providing nutrients for salt-tolerant plants. As a convertible embodiment, the organic fertilizers 8 may not be arranged in the drainage channel 5, and all solid particles 7 may be arranged, and there is no excessive restriction here.

[0067] In one embodiment, the first flow guide 6 is a polyvinyl chloride tube with a diameter of 50 cm. As a convertible embodiment, the diameter of the first flow guide 6 can also be 45 cm or 55 cm, without too much restriction. As a convertible embodiment, the material of the first flow guide 6 can also be polyethylene or polypropylene, without too much restriction.

[0068] like Figure 1-Figure 2As shown, in one embodiment, the saline-alkali land improvement system of agriculture, forestry, animal husbandry and breeding joint control includes: a saline-alkali water desalination component 9, connected to the first guide member 6, used to treat the saline-alkali water into brackish water and slightly salty water; a second guide member 10, one end of which is connected to the saline-alkali water desalination component 9, and the other end extends to the first planting area 2, used to irrigate slightly salty water to the first planting area 2. Among them, the saline-alkali water desalination component 9 treats the saline-alkali water into brackish water and slightly salty water according to the salinity, slightly salty water is water with a salt content of 0.2%-0.5%, and brackish water is water with a salt content of 0.5%-1%; the first guide member 6 is tilted downward toward one side of the saline-alkali water desalination component 9, so that the saline-alkali water flows to the saline-alkali water desalination component 9 by its own gravity. By desalinating the saline-alkali water and using the desalinated slightly salty water for irrigation of the first planting area 2, the recycling of water resources can be achieved and the efficiency of resource utilization can be improved. As a convertible implementation, the inclination direction of the first flow guide 6 may be not restricted, and a driving pump may be provided on the first flow guide 6 to transport the saline water to the saline water desalination assembly 9 .

[0069] like Figure 1 As shown, in one embodiment, the saline-alkali land improvement system for agriculture, forestry, animal husbandry and breeding combined control includes: a brackish water treatment component 11, which is connected to the saline-alkali water desalination component 9, and is used to evaporate and crystallize the brackish water. By evaporating and crystallizing the brackish water, solid salt particles can be extracted as cattle and sheep feed additives and chemical raw materials. As a convertible implementation method, the brackish water can also be directly discharged, or desalinated again, without too much restriction here.

[0070] like Figure 1 As shown, in one embodiment, the saline-alkali water desalination component 9 is connected to the first end of the tee, the second end of the tee is connected to the second flow guide 10, and the third end of the tee is connected to the brackish water treatment component 11. The saline-alkali water desalination component 9 is provided with a detection component at one end close to the tee, the second flow guide 10 is provided with a first control component at one end close to the tee, and the brackish water treatment component 11 is provided with a second control component at one end close to the tee. Among them, the detection component is a concentration sensor for measuring the salt content of saline-alkali water, and the first control component and the second control component are both solenoid valves. Specifically, after the saline-alkali water desalination component 9 processes the saline-alkali water into brackish water and brackish water, the first control component is closed, the second control component is opened, and the brackish water flows to the brackish water treatment component 11 through the third end of the tee; after the concentration sensor detects that the brackish water has been drained, the first control component is opened, the second control component is closed, and the brackish water flows to the second flow guide 10 through the second end of the tee for irrigation.

[0071] like Figure 1-Figure 2As shown, in one embodiment, the saline-alkali land improvement system of agriculture, forestry, animal husbandry and breeding joint control includes: a power generation component 12, which is electrically connected to the saline-alkali water desalination component 9, and is used to provide electrical energy for the saline-alkali water desalination component 9. The power generation component 12 includes a plurality of photovoltaic panels 1201. Among them, the cross-sectional dimensions of the photovoltaic panel 1201 are 2382mm×1134mm, and a total of 2000 are provided. By providing the power generation component 12, it is more convenient to provide electrical energy for the saline-alkali water desalination component 9. As a convertible embodiment, the power generation component 12 can also be a windmill or other power generation structure, and there are no excessive restrictions here.

[0072] like Figure 1 As shown, in one embodiment, the saline-alkali land improvement system for agriculture, forestry, animal husbandry and breeding combined control includes: an energy storage component 14, one end of which is electrically connected to the power generation component 12, and the other end is electrically connected to the saline-alkali water desalination component 9, for storing electric energy. By providing the energy storage component 14, the electric energy generated by the power generation component 12 can be stored, thereby ensuring the power supply in various environments. As a convertible implementation method, the energy storage component 14 may not be provided, but a variety of power generation methods may be used to provide electric energy.

[0073] like Figure 1 As shown, in one embodiment, the saline-alkali land improvement system of agriculture, forestry, animal husbandry and breeding combined control includes: a livestock area 13, which is set on the saline-alkali land 1 for grazing. Among them, the livestock area 13 is used to raise cattle and sheep. By setting up the livestock area 13, the animal excrement collected in the livestock area 13 can be applied to the saline-alkali land 1 to improve the soil fertility of the saline-alkali land 1, and reduce the use of chemical fertilizers to promote the acid-base balance of the soil. As a convertible implementation method, the livestock area 13 may not be set, and no excessive restrictions are made here.

[0074] In one embodiment, the saline-alkali land improvement system of agricultural, forestry and animal husbandry joint control includes: a second planting area 15, which is arranged on the saline-alkali land 1 and is located below the photovoltaic panel 1201, and is used to provide forage for the animal husbandry area 13. Among them, the second planting area 15 is planted with alfalfa, and the planting row spacing is 20cm; in order to prevent the photovoltaic panel 1201 from blocking the light of the alfalfa, the distance between the center point of the photovoltaic panel 1201 and the surface of the saline-alkali land 1 is 3m. By planting forage grass under the photovoltaic panel 1201, it is possible to provide feed for the animal husbandry area 13, thereby improving the efficiency of land use; by planting alfalfa, the stems and leaves can be used to provide feed for the animal husbandry area 13, and the roots can be used to fix carbon and nitrogen, thereby playing a role in preventing wind and sand and protecting ecological balance. As a convertible embodiment, it can also be that the second planting area 15 is planted with other forage grasses such as red bean grass, and there is no excessive restriction here.

[0075] like Figure 1-Figure 2As shown, in one embodiment, ecological vegetation 16 is planted between the saline-alkali land 1 and the desert. The ecological vegetation 16 is poplar. As a convertible implementation, the ecological vegetation 16 can also be other salt-alkali tolerant trees such as Haloxylon ammodendron, which is not limited here.

[0076] According to an embodiment of the present invention, on the other hand, a method for improving saline-alkali land with integrated control of agriculture, forestry, animal husbandry and breeding is also provided, which is applied to the above-mentioned saline-alkali land improvement system with integrated control of agriculture, forestry, animal husbandry and breeding, and includes: initially measuring the salinity of the saline-alkali land 1; planting salt-tolerant plants in a first planting area 2; irrigating the salt-tolerant plants with a drip irrigation component 3; draining the saline-alkali water on the surface of the saline-alkali land 1 to a drainage channel 5 with a water infiltration component 4; discharging the saline-alkali water through a first guide member 6; and measuring the salinity of the saline-alkali land 1 again until it meets a preset standard.

[0077] When measuring the salinity of the saline-alkali land 1, the salinity is measured every 20 cm within the range of 0 cm-100 cm below the surface of the saline-alkali land 1; the preset standard is that the soil salt content in the surface layer of the saline-alkali land 1 meets the requirements for crop growth.

[0078] like Figure 4 As shown, in one embodiment, the improvement method of the saline-alkali land improvement system for agriculture, forestry, animal husbandry and breeding joint control in this embodiment is:

[0079] Suaeda salsa and sunflower are planted in the first planting area 2 to absorb salt from the surface layer and provide feed for cattle and sheep in the livestock area 13; the drip irrigation component 3 is used to irrigate the Suaeda salsa and sunflower, and the remaining salt from the surface layer is discharged to the sub-surface layer; the water infiltration component 4 brings the salt from the sub-surface layer to the drainage channel 5, and discharges it to the saline-alkali water desalination component 9 through the first guide member 6; the saline-alkali water desalination component 9 processes the saline-alkali water into brackish water and bitter water, and the brackish water is used to irrigate the first planting area 2, the second planting area 15 and the ecological vegetation 16, and the cattle and sheep in the livestock area 13 for drinking. The brackish water is used to extract solid salt particles as feed additives and chemical raw materials for cattle and sheep in the livestock area 13; the power generation component 12 provides electricity for the saline water desalination component 9 and the brackish water treatment component 11; the second planting area 15 below the power generation component 12 is used to plant alfalfa to provide feed for cattle and sheep in the livestock area 13; the excrement of cattle and sheep in the livestock area 13 provides fertilizer for the first planting area 2 and the second planting area 15; the ecological vegetation 16 serves as an ecological barrier to prevent the saline-alkali land 1 from desertification, so that a self-circulation can be formed within the improved system.

[0080] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A saline-alkali land improvement system for integrated control of agriculture, forestry, animal husbandry, and breeding, used for improving saline-alkali land (1), characterized in that: include: A first planting area (2), located on the saline-alkali land (1), for planting salt-tolerant plants; A drip irrigation assembly (3) is arranged above the saline-alkali land (1), the drip irrigation assembly (3) comprising a drip irrigation port, the drip irrigation port being arranged corresponding to the root of the salt-tolerant plant; A water seepage component (4), the water seepage component (4) comprising a water seepage port, the water seepage port being arranged below the surface of the saline-alkali land (1); A drainage channel (5) is provided below the surface of the saline-alkali land (1) corresponding to the first planting area (2), and the top of the drainage channel (5) is provided at the surface of the saline-alkali land (1); The first flow guide (6) is connected to the bottom end of the drainage channel (5) and is used to drain the saline water.

2. The saline-alkali land improvement system for agriculture, forestry, animal husbandry and breeding combined control according to claim 1 is characterized in that: The drainage channels (5) are provided in plurality; And / or, the drainage channel (5) is filled with a water-permeable medium.

3. The saline-alkali land improvement system for agriculture, forestry, animal husbandry and breeding combined control according to claim 2 is characterized in that: The water-permeating medium comprises: Solid particles (7) are arranged at the bottom end of the drainage channel (5); And / or, organic fertilizer (8) is arranged near the top of the drainage channel (5).

4. The saline-alkali land improvement system for agriculture, forestry, animal husbandry and breeding combined control according to claim 3 is characterized in that: The solid particles (7) are sand particles; And / or, the organic fertilizer (8) is straw; And / or, the maximum size of the solid particles (7) is 1 mm.

5. The saline-alkali land improvement system for agriculture, forestry, animal husbandry and breeding combined control according to claim 1 is characterized in that: The water seepage component (4) comprises: A first main pipe (401) is arranged above the saline-alkali land (1); The first branch pipe (402) has one end connected to the first main pipe (401) and the other end extending below the surface of the saline-alkali land (1). The first branch pipe (402) is provided with a plurality of seepage openings at intervals.

6. The saline-alkali land improvement system for agriculture, forestry, animal husbandry and breeding combined control according to any one of claims 1 to 5, characterized in that: The saline-alkali land improvement system of agriculture, forestry, animal husbandry, planting and breeding combined control includes: A saline-alkali water desalination component (9), connected to the first flow guide (6), and used for treating the saline-alkali water into brackish water and slightly salty water; A second flow guide (10), one end of which is connected to the saline-alkali water desalination component (9), and the other end of which extends to the first planting area (2), and is used for irrigating the first planting area (2) with the slightly brackish water; And / or, a brackish water treatment component (11) is connected to the saline water desalination component (9) and is used to perform evaporation and crystallization treatment on the brackish water.

7. The saline-alkali land improvement system for agriculture, forestry, animal husbandry and breeding combined control according to claim 6 is characterized in that: The saline-alkali land improvement system of agriculture, forestry, animal husbandry, planting and breeding combined control includes: The power generation component (12) is electrically connected to the saline-alkali water desalination component (9) and is used to provide electrical energy to the saline-alkali water desalination component (9).

8. The saline-alkali land improvement system for agriculture, forestry, animal husbandry and breeding combined control according to claim 7 is characterized in that: The saline-alkali land improvement system of agriculture, forestry, animal husbandry, planting and breeding combined control includes: A livestock area (13), located on the saline-alkali land (1), for grazing; and / or, an energy storage component (14), one end of which is electrically connected to the power generation component (12) and the other end of which is electrically connected to the saline-alkali water desalination component (9), for storing electrical energy; And / or, the power generation component (12) includes a plurality of photovoltaic panels (1201).

9. The saline-alkali land improvement system for agriculture, forestry, animal husbandry and breeding combined control according to claim 8 is characterized in that: The saline-alkali land improvement system of agriculture, forestry, animal husbandry, planting and breeding combined control includes: The second planting area (15) is arranged on the saline-alkali land (1) and is located below the photovoltaic panel (1201) and is used to provide forage for the livestock area (13).

10. A method for improving saline-alkali land by integrated control of agriculture, forestry, animal husbandry, breeding and farming, applied to the saline-alkali land improvement system by integrated control of agriculture, forestry, animal husbandry, breeding and farming as claimed in any one of claims 1 to 9, characterized in that: include: First time Determining the salinity of the saline-alkali land (1); Planting the salt-tolerant plants in the first planting area (2); The drip irrigation assembly (3) irrigates the salt-tolerant plants; The water seepage component (4) drains the saline-alkali water on the surface of the saline-alkali land (1) to the drainage channel (5); The saline-alkali water is discharged through the first flow guide member (6); The salinity of the saline-alkali land (1) is measured again until it meets the preset standard.

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