Sustainable desert region consumption land comprehensive treatment system and method

Abstract

The invention provides a sustainable desert region consumption land comprehensive treatment system and method, and belongs to the technical field of ecological restoration. Comprising a water storage module, a soil improvement module, a drip irrigation module and a planting belt module. Water is evenly pumped into the planting belt modules installed at all positions of the desert region absorption land through the drip irrigation module, when the planting belt modules govern the desert region absorption land, the bottoms of the planting barrels are of a net structure, plant seedling roots can penetrate through meshes to grow downwards and extend transversely, a net root sand fixing system is formed, flowing sandy soil is effectively fixed, and the desert region absorption land is treated. Wind erosion is inhibited; an N-P-K-Mg composite reagent is sprayed to the planting cylinders through the reagent adding pipeline, nutrition is directly provided for plant roots, the survival rate is increased, meanwhile, surrounding sandy soil is improved, and the content of organic matter in soil is gradually increased, in a word, passive sand fixation of desert absorption land is converted into active ecological restoration through water-soil-plant coordinated regulation and control, and the ecological restoration effect is improved. Sustainability of treatment is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of ecological restoration, and specifically relates to a sustainable comprehensive management system and method for desert area disposal sites. Background Art

[0002] Desertification is one of the major ecological and environmental problems faced globally. Especially in arid and semi-arid regions, land degradation leads to a fragile ecosystem, reduced vegetation coverage, poor soil fertility, and scarce water resources, seriously threatening regional ecological security and sustainable development. Traditional desert control methods mainly include artificial tree planting, sand fixation with straw checkerboards, and soil moisture conservation by film mulching, etc.

[0003] In traditional irrigation methods (such as flood irrigation), large amounts of water are lost through evaporation, making it difficult to adapt to the high evaporation environment in desert areas and resulting in water resource waste; the soil organic matter content in desert areas is low, and the water and fertilizer retention capacity is poor. Simply relying on artificial fertilization is difficult to sustain plant growth requirements in the long term; conventional fertilization methods are prone to nutrient loss or excessive local concentration, affecting plant growth, and the artificial management cost is relatively high.

[0004] In recent years, some studies have attempted to combine drip irrigation, soil amendments, and drought-tolerant plants for desert control, but there are still the following problems:

[0005] It may adopt relatively traditional irrigation methods, such as flood irrigation, etc., which easily lead to uneven water distribution; the growth space of plant roots is limited, making it difficult to form an effective sand fixation system and having poor effects in fixing mobile sand and suppressing wind erosion; there is a lack of a method for precisely supplying nutrients directly to plant roots, resulting in low fertilizer utilization rate, being unable to well meet plant growth requirements, and also being difficult to effectively improve the soil. Summary of the Invention

[0006] In view of the above problems, the present invention provides a sustainable comprehensive management system and method for desert area disposal sites.

[0007] The technical solution of the present invention is: A sustainable comprehensive management system for desert area disposal sites, comprising a water storage module, a soil improvement module, a drip irrigation module, and a planting belt module;

[0008] The soil improvement module includes a pretreatment tank connected to the water storage module and provided with a liquid extraction pump at the connection, a reagent addition pipeline connected to the pretreatment tank, and an organic matter addition device for adding organic matter to the disposal site;

[0009] The drip irrigation module includes several water delivery main pipes connected to the water storage module and distributed in parallel, and several drip irrigation pipes provided on each of the water delivery main pipes;

[0010] The planting belt module includes planting pipes corresponding to the main water conveyance pipes one by one and having several through openings at the upper ends, several planting cylinders provided on each of the through openings and having a net-like structure at the bottom end, and plant seedlings planted in each of the planting cylinders. A diversion pipe is connected through the planting pipe and located between two adjacent planting cylinders.

[0011] Further, the water storage module includes a reservoir, a filter tank connected to the reservoir, and a sedimentation tank connected to the filter tank. The reagent addition pipeline is connected to the sedimentation tank. A gravel layer, an activated carbon layer, and a biofilm layer are sequentially arranged in the reservoir from top to bottom.

[0012] Note: When the water storage module is in use, it collects external water sources such as rainwater and reclaimed water through the reservoir, intercepts large particle impurities in the external water source through the gravel layer inside it, adsorbs organic matters, heavy metals, and odors in the external water source through the activated carbon layer, degrades dissolved pollutants in the water such as nitrogen and phosphorus through the biofilm layer. The three-layer filtration design of gravel, activated carbon, and biofilm takes into account physical, chemical, and biological purification, significantly improves water quality, and is suitable for the treatment of high-turbidity or polluted water sources in desert areas. The water preliminarily filtered by the reservoir flows into the filter tank to further remove fine particles, and then enters the sedimentation tank to separate the remaining suspended matters through gravity sedimentation. The purified water is transported to the soil improvement module and the drip irrigation module through a liquid pumping pump, realizing the recycling of water resources, ensuring the water quality for plant growth, and improving the overall efficiency of desert control.

[0013] Further, the reagent addition pipeline includes a reagent addition main pipe connected to the water storage module, several shunt branch pipes connected to the reagent addition main pipe, T-shaped addition pipes provided on each of the shunt branch pipes and corresponding to each drip irrigation pipe one by one, and spraying heads provided at the bottom ends of each T-shaped addition pipe and corresponding to each planting cylinder one by one.

[0014] Note: The water body in the water storage module is pumped into the pretreatment tank through a liquid pumping pump for dilution of the reagent. Then, the diluted reagent is distributed into each shunt branch pipe through the reagent addition main pipe, and evenly sprayed through the spraying heads at the horizontal sections of each T-shaped addition pipe. On the one hand, it can supplement nitrogen, phosphorus, potassium, and trace elements for the plant seedlings, solve the problem of poor soil in desert areas, and promote the root development and leaf growth of the plant seedlings. On the other hand, soil improvers can be added to gradually improve the surrounding soil and improve the survival rate of the plant seedlings.

[0015] Furthermore, the shunt branch pipes correspond to the main water conveyance pipes one by one and are connected to the side wall of the main water conveyance pipe through connecting sleeves.

[0016] Note: The shunt branch pipes and the main water conveyance pipes are fixed through the connecting sleeves. On the one hand, it improves the connection reliability between the two. On the other hand, it can reduce the occupied space of each pipeline.

[0017] Furthermore, the diversion pipe is a corrugated flexible pipe. Both ends of the diversion pipe are connected to the side wall of the planting cylinder through buckles, and a one-way water-permeable membrane is provided at the connection.

[0018] Explanation: When adding reagents or water bodies to each planting cylinder, since adjacent planting cylinders are connected by a diversion pipe, and the diversion pipe serves as a horizontal circulation channel, it can quickly direct excess liquid to adjacent planting cylinders, avoiding single-point water accumulation or local high concentration, and also avoiding ineffective evaporation and deep leakage. At the same time, the one-way water-permeable membrane only allows liquid to seep out from the diversion pipe to the side wall of the planting cylinder, preventing reverse pollution of saline-alkali water in the sandy soil.

[0019] Furthermore, a mixing cylinder is provided at the center of the pretreatment tank, several dosing cylinders provided in the pretreatment tank and circumferentially distributed around the mixing cylinder, a spiral mixing pipe provided on the outer wall of the mixing cylinder, and a communication branch pipe for connecting each dosing cylinder to the spiral mixing pipe. The mixing cylinder is connected to the reagent addition pipeline. An addition port penetrating to the outside of the pretreatment tank is provided on the side wall of the dosing cylinder, and the bottom end of the spiral mixing pipe communicates with the inside of the mixing cylinder.

[0020] Explanation: When diluting reagents in the pretreatment tank, corresponding raw materials are added to the corresponding dosing cylinders through each addition port. Each raw material flows through the communication branch pipes to the spiral mixing pipe for mixing, and finally flows into the mixing cylinder. At this time, the water body in the water storage module can be pumped into the mixed solution by a liquid extraction pump for concentration adjustment. Each dosing cylinder can store different raw materials, and classification replenishment is achieved through the side wall addition ports to avoid cross-contamination. The spiral mixing pipe extends the flow path and generates eddies, enabling the raw materials to be fully mixed before entering the mixing cylinder, solving the problems of high energy consumption and many dead corners in traditional stirring and mixing.

[0021] Even further, electromagnetic valves and flow indicators are provided on each of the communication branch pipes, and a solar power generation device is provided at the upper end of the pretreatment tank. The solar power generation device is electrically connected to the electromagnetic valves and the flow indicators.

[0022] Explanation: When each raw material flows through the communication branch pipes to the spiral mixing pipe for mixing, the addition sequence of each raw material is controlled by the electromagnetic valve, and the addition amount of each raw material is controlled by the flow indicator, realizing the precision, high efficiency, and controllability of the reagent concentration.

[0023] Even further, transparent observation windows are provided on the pretreatment tank corresponding to each dosing cylinder. Each dosing cylinder is made of a transparent material, and a scale is provided on the outer wall of the dosing cylinder.

[0024] Explanation: Through the transparent observation window, it is convenient to observe the side walls of each dosing cylinder in the pretreatment tank. At the same time, in cooperation with the scale on the outer wall of the dosing cylinder, it is convenient to intuitively understand the remaining amount of raw materials in each dosing cylinder and facilitate timely replenishment.

[0025] The present invention also discloses a comprehensive treatment method for desert area disposal sites, based on the above-mentioned sustainable comprehensive treatment system for desert area disposal sites, including the following steps:

[0026] S1. Pump the water in the water storage module to each water delivery main pipe and the pretreatment tank through a liquid pumping pump. Among them, control the flow rate of the liquid pumping pump to be 5-10m 3 / h;

[0027] S2. After the water in the water storage module is pumped to each water delivery main pipe, it passes through each drip irrigation pipe on each water delivery main pipe and is sprayed onto the plant seedlings in the corresponding planting cylinder through the water outlet of the drip irrigation pipe to regularly supply water to the plant seedlings. Among them, the drip head flow rate of the drip irrigation pipe is 2-4L / h, and the irrigation frequency is once a day in summer and once every three days in winter;

[0028] S3. Pump the water in the water storage module into the pretreatment tank, dilute the N-P-K-Mg composite reagent placed in the pretreatment tank, and then evenly spray the diluted N-P-K-Mg composite reagent onto the plant seedlings in the corresponding planting cylinder through the reagent addition main pipe to regularly supply and supplement nutrient elements to the plant seedlings. Among them, the dilution ratio of the N-P-K-Mg composite reagent is 1:30 to 1:50;

[0029] S4. When spraying reagents or water into each planting cylinder, since adjacent two planting cylinders are connected by a diversion pipe, and the diversion pipe serves as a horizontal flow channel, the excess liquid can be quickly directed to the adjacent planting cylinder.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] The sustainable comprehensive treatment system for desert area disposal sites of the present invention realizes the efficient utilization of inferior water sources such as rainwater and reclaimed water through the water storage module, and evenly pumps the water into the planting belt modules installed everywhere in the desert area disposal site through the drip irrigation module. When the planting belt module treats the desert area disposal site, the bottom of the planting cylinder is a mesh structure, and the root systems of the plant seedlings can penetrate through the mesh holes and grow downward and expand laterally to form a mesh root system sand fixation system, effectively fixing the flowing sand and inhibiting wind erosion; spraying the N-P-K-Mg composite reagent into the planting cylinder through the reagent addition pipeline directly provides nutrients for the plant roots, improves the survival rate, and at the same time improves the surrounding sand soil and gradually increases the soil organic matter content. Among them, the plant litter and root exudates are supplemented into the sand soil through the organic matter addition device, and the soil fertility is increased year by year to form a virtuous cycle; in short, the system of the present invention realizes the sustainable treatment by converting the desert disposal site from passive sand fixation to active ecological restoration through the coordinated regulation of "water-soil-plant". BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1It is a schematic diagram of the overall connection structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the structure of the planting belt module of the present invention;

[0034] Figure 3 It is a side view of the connection between the shunt branch pipe and the planting pipe of the present invention;

[0035] Figure 4 It is a top view of the interior of the pretreatment tank of the present invention;

[0036] Figure 5 It is a schematic diagram of the external structure of the pretreatment tank of the present invention.

[0037] Among them, 1 - water storage module, 11 - reservoir, 110 - gravel layer, 111 - activated carbon layer, 112 - biofilm layer, 12 - filter box, 13 - sedimentation tank, 2 - soil improvement module, 20 - pretreatment tank, 200 - mixing cylinder, 201 - batching cylinder, 202 - spiral mixing pipe, 203 - connecting branch pipe, 204 - solenoid valve, 205 - flowmeter, 206 - transparent observation window, 207 - scale, 21 - reagent addition pipeline, 210 - reagent addition main pipe, 211 - shunt branch pipe, 212 - T-shaped addition pipe, 213 - spraying head, 214 - connecting sleeve, 22 - addition port, 23 - solar power generation equipment, 3 - drip irrigation module, 31 - water delivery main pipe, 32 - drip irrigation pipe, 4 - planting belt module, 40 - planting pipe, 400 - through hole, 41 - planting cylinder, 42 - plant seedlings, 43 - diversion pipe, 431 - one-way water permeable membrane, 5 - liquid extraction pump. Specific embodiments

[0038] In order to further understand the content of the present invention, the following provides a detailed description of the present invention through embodiments.

[0039] Embodiment 1: As Figure 1 shown, a sustainable comprehensive management system for desert area consumption land includes a water storage module 1, a soil improvement module 2, a drip irrigation module 3, and a planting belt module 4;

[0040] The water storage module 1 includes a reservoir 11, a filtration tank 12 connected to the reservoir 11, and a sedimentation tank 13 connected to the filtration tank 12. A reagent addition pipeline 20 is connected to the sedimentation tank 13. Inside the reservoir 11, there are successively arranged a gravel layer 110, an activated carbon layer 111, and a biofilm layer 112 from top to bottom. External water sources such as rainwater and reclaimed water are collected through the reservoir 11. The large particulate impurities in the external water source are intercepted by the gravel layer 110 inside it. The organic matter, heavy metals, and odors in the external water source are adsorbed by the activated carbon layer 111. The dissolved pollutants in the water such as nitrogen and phosphorus are degraded by the biofilm layer 112. The three-layer filtration design of gravel, activated carbon, and biofilm takes into account physical, chemical, and biological purification, significantly improving the water quality, and is suitable for the treatment of high-turbidity or polluted water sources in desert areas. The water preliminarily filtered by the reservoir 11 flows into the filtration tank 12 to further remove fine particles, and then enters the sedimentation tank 13. The remaining suspended solids are separated by gravity sedimentation. The purified water is transported to the soil improvement module 2 and the drip irrigation module 3 through a liquid pumping pump 5, realizing the recycling of water resources, ensuring the water quality for plant growth, and improving the overall efficiency of desert control;

[0041] The soil improvement module 2 includes a pretreatment tank 20 connected to the water storage module 1 with a liquid pumping pump 5 provided at the connection, a reagent addition pipeline 21 connected to the pretreatment tank 20, and an organic matter addition device for adding organic matter to the consumption area. Among them, both the liquid pumping pump 5 and the organic matter addition device adopt existing technologies. For example, the liquid pumping pump 5 can adopt the EQHD-A1 series liquid pumping pump, and the organic matter addition device can adopt the supporting device of the LD-GT4 organic matter injection deep applicator with the model;

[0042] As Figure 3 shown, the reagent addition pipeline 21 includes a reagent addition main pipe 210 connected to the water storage module 1, six shunt branches 211 connected to the reagent addition main pipe 210, T-shaped addition pipes 212 provided on each shunt branch 211 and corresponding to each drip irrigation pipe 32 one by one, and spray heads 213 provided at the bottom of each T-shaped addition pipe 212 and corresponding to each planting cylinder 41 one by one. The water body in the water storage module 1 is pumped into the pretreatment tank 20 by the liquid pumping pump 5 for reagent dilution. Then, the diluted reagent is distributed into each shunt branch 211 through the reagent addition main pipe 210, and is evenly sprayed through the spray heads 213 at the horizontal section of each T-shaped addition pipe 212. On the one hand, nitrogen, phosphorus, potassium, and trace elements can be supplemented for the plant seedlings 42, solving the problem of poor soil in desert areas and promoting the root development and leaf growth of the plant seedlings 42. On the other hand, a soil conditioner can be added to gradually improve the surrounding soil and improve the survival rate of the plant seedlings 42. Among them, both the drip irrigation pipe 32 and the spray head 213 adopt existing technologies. For example, the drip irrigation pipe 32 adopts the existing inlaid drip irrigation pipe, and the spray head 213 can adopt the spray head with the model WLD-5;

[0043] The diversion branch pipes 211 correspond to the water conveyance main pipes 31 one by one and are connected to the side walls of the water conveyance main pipes 31 through connecting sleeves 214. The diversion branch pipes 211 and the water conveyance main pipes 31 are fixed through the connecting sleeves 214. On the one hand, the connection reliability between the two is improved. On the other hand, the occupied space of each pipeline can be reduced;

[0044] The drip irrigation module 3 includes 6 water conveyance main pipes 31 connected to the water storage module 1 and distributed in parallel, and 6 drip irrigation pipes 32 provided on each water conveyance main pipe 31;

[0045] As Figure 2 shown, the planting belt module 4 includes planting pipes 40 corresponding to the water conveyance main pipes 31 one by one and having 6 through holes 400 at the upper ends, 6 planting cylinders 41 provided on each through hole 400 and having a net structure at the bottom, and plant seedlings 42 planted in each planting cylinder 41. A diversion pipe 43 is connected through and between adjacent two planting cylinders 41 in the planting pipe 40;

[0046] The diversion pipe 43 is a corrugated flexible pipe. The two ends of the diversion pipe 43 are connected to the side walls of the planting cylinder 41 through buckles, and a one-way water permeable membrane 431 is provided at the connection. When adding reagents or water bodies into each planting cylinder 41, since adjacent two planting cylinders 41 are connected through the diversion pipe 43, and the diversion pipe 43 serves as a horizontal flow channel, the excess liquid can be quickly guided to the adjacent planting cylinder 41, avoiding single-point water accumulation or local high concentration, and also avoiding ineffective evaporation and deep leakage. At the same time, the one-way water permeable membrane 431 only allows the liquid to seep out from the diversion pipe 43 to the side wall of the planting cylinder 41, preventing the reverse pollution of the saline-alkali water in the sand and soil. Among them, the one-way water permeable membrane 431 adopts the existing PE anti-blocking membrane.

[0047] Embodiment 2: This embodiment records a comprehensive treatment method for desert area consumption land. Based on a sustainable comprehensive treatment system for desert area consumption land in Embodiment 1, it includes the following steps:

[0048] S1. Collect external water sources such as rainwater and reclaimed water through the reservoir 11, intercept large particle impurities in the external water source through the gravel layer 110 inside it, adsorb organic matters, heavy metals and odors in the external water source through the activated carbon layer 111, degrade the dissolved pollutants in the water such as nitrogen and phosphorus through the biofilm layer 112. The water preliminarily filtered by the reservoir 11 flows into the filter box 12 to further remove fine particles, and then enters the sedimentation tank 13 to separate the remaining suspended matters through gravity sedimentation. Then, the water body in the sedimentation tank 13 is pumped to each water conveyance main pipe 31 and the pretreatment tank 20 through the liquid pumping pump 5. Among them, the flow rate of the liquid pumping pump 5 is controlled to be 5m 3 / h;

[0049] S2. After the water in the sedimentation tank 13 is pumped to each water delivery main pipe 31, it passes through each drip irrigation pipe 32 on each water delivery main pipe 31, and is sprayed onto the plant seedlings 42 in the corresponding planting cylinder 41 through the water outlet of the drip irrigation pipe 32, regularly providing water for the plant seedlings 42. Among them, the drip head flow rate of the drip irrigation pipe 32 is 2 L / h, and the irrigation frequency is once a day in summer and once every three days in winter;

[0050] S3. The water in the water storage module 1 is pumped into the pretreatment tank 20 to dilute the N-P-K-Mg composite reagent placed in the pretreatment tank 20. Then, the diluted N-P-K-Mg composite reagent is evenly sprayed onto the plant seedlings 42 in the corresponding planting cylinder 41 through the reagent addition main pipe 210, regularly providing supplementary nutrient elements for the plant seedlings 42. Among them, the dilution ratio of the N-P-K-Mg composite reagent is 1:30. The N-P-K-Mg composite reagent adopts the existing technology, for example, the N-P-K-Mg plant nutrient supplement produced by Lianshuo Biotech Co., Ltd. can be used;

[0051] S4. When spraying reagents or water into each planting cylinder 41, since adjacent two planting cylinders 41 are connected by a diversion pipe 43, and the diversion pipe 43 serves as a horizontal flow channel, the excess liquid can be quickly guided to the adjacent planting cylinder 41. At the same time, the one-way water permeable membrane 431 only allows the liquid to seep out from the diversion pipe 43 to the side wall of the planting cylinder 41, preventing the reverse pollution of the saline-alkali water in the sand and soil.

[0052] Example 3: The difference between this example and Example 2 is as follows:

[0053] In step S1, the flow rate of the liquid pumping pump 5 is controlled to be 10 m 3 / h;

[0054] In step S2, the drip head flow rate of the drip irrigation pipe 32 is 4 L / h;

[0055] In step S3, the dilution ratio of the N-P-K-Mg composite reagent is 1:50.

[0056] Example 4: The difference between this example and Example 3 is as follows:

[0057] Such as Figure 4 、 5As shown in the figure, a mixing cylinder 200 is provided at the center inside the pretreatment tank 20, several batching cylinders 201 are provided inside the pretreatment tank 20 and distributed circumferentially around the mixing cylinder 200, a spiral mixing pipe 202 is provided on the outer wall of the mixing cylinder 200, and a communicating branch pipe 203 is used to connect each batching cylinder 201 and the spiral mixing pipe 202. The mixing cylinder 200 is connected to the reagent addition pipeline 20. An addition port 22 penetrating through to the outside of the pretreatment tank 20 is provided on the side wall of the batching cylinder 201. The bottom end of the spiral mixing pipe 202 communicates with the inside of the mixing cylinder 200. When diluting the reagent in the pretreatment tank 20, corresponding types of raw materials are added into the corresponding batching cylinders 201 through the respective addition ports 22. Each raw material flows into the spiral mixing pipe 202 through the communicating branch pipe 203 for mixing and finally flows into the mixing cylinder 200. At this time, the water body in the water storage module 1 can be pumped into the mixed solution by the liquid extraction pump 5 for concentration adjustment. Each batching cylinder 201 can store different raw materials, and classification supplementation is realized through the side wall addition port 22 to avoid cross-contamination. The spiral mixing pipe 202 extends the flow path and generates eddy currents, enabling the raw materials to be fully fused before entering the mixing cylinder 200, solving the problems of high energy consumption and many dead corners in traditional stirring and mixing;

[0058] Solenoid valves 204 and flow meters 205 are provided on each communicating branch pipe 203. A solar power generation device 23 is provided at the upper end of the pretreatment tank 20. The solar power generation device 23 is electrically connected to the solenoid valves 204 and the flow meters 205. When each raw material flows into the spiral mixing pipe 202 through the communicating branch pipe 203 for mixing, the addition sequence of each raw material is controlled by the solenoid valve 204, and the addition amount of each raw material is controlled by the flow meter 205, realizing the precision, high efficiency and controllability of reagent concentration adjustment. Among them, both the solenoid valve 204 and the flow meter 205 adopt existing technologies. For example, the solenoid valve 204 adopts a Staiger 204-502 proportional solenoid valve, and the flow meter 205 adopts a flow meter of model ADMAG AE;

[0059] Transparent observation windows 206 are provided on the pretreatment tank 20 corresponding to each batching cylinder 201. Each batching cylinder 201 is made of a transparent material, and a scale 207 is provided on the outer wall of the batching cylinder 201. Through the transparent observation window 206, it is convenient to observe the side walls of each batching cylinder 201 inside the pretreatment tank 20. At the same time, in cooperation with the scale 207 on the outer wall of the batching cylinder 201, it is convenient to intuitively understand the remaining amount of the raw materials in each batching cylinder 201 and facilitate timely replenishment.

[0060] Example 5: The difference between this example and Example 4 is that:

[0061] In step S3, when the water in the sedimentation tank 13 is pumped into the pretreatment tank 20 for diluting the N-P-K-Mg composite reagent, corresponding raw materials are added into the corresponding batching cylinders 201 through each adding port 22. Each raw material flows through the connecting branch pipe 203 into the spiral mixing pipe 202 for mixing and finally flows into the mixing cylinder 200. At this time, the water in the water storage module 1 can be pumped into the mixed liquid by the liquid pumping pump 5 for concentration adjustment;

[0062] When each raw material flows through the connecting branch pipe 203 into the spiral mixing pipe 202 for mixing, the adding sequence of each raw material is controlled by the electromagnetic valve 204, and the adding amount of each raw material is controlled by the flow indicator 205;

[0063] The side walls of each batching cylinder 201 in the pretreatment tank 20 can be conveniently observed through the transparent observation window 206. At the same time, combined with the scale 207 on the outer wall of the batching cylinder 201, the remaining amount of the raw materials in each batching cylinder 201 can be intuitively understood, so as to make timely supplements.

Claims

1. A sustainable comprehensive treatment system for desert area consumption land, comprising a water storage module (1), a soil improvement module (2), a drip irrigation module (3) and a planting belt module (4); The soil improvement module (2) includes a pretreatment tank (20) connected to the water storage module (1) and provided with a liquid extraction pump (5) at the connection, a reagent addition pipeline (21) connected to the pretreatment tank (20), and an organic matter addition device for adding organic matter to the consumption land; The drip irrigation module (3) includes several water delivery main pipes (31) connected to the water storage module (1) and distributed in parallel, and several drip irrigation pipes (32) provided on each of the water delivery main pipes (31); The planting belt module (4) includes planting pipes (40) corresponding to the water delivery main pipes (31) one by one and provided with several through holes (400) at the upper ends, several planting cylinders (41) provided on each of the through holes (400) and having a net structure at the bottom, and plant seedlings (42) planted in each of the planting cylinders (41). A diversion pipe (43) is connected through between adjacent two of the planting cylinders (41) inside the planting pipe (40).

2. The comprehensive management system for sustainable desert area consumption land according to claim 1, characterized in that The water storage module (1) includes a reservoir (11), a filter tank (12) connected to the reservoir (11), and a sedimentation tank (13) connected to the filter tank (12). The reagent addition pipeline (20) is connected to the sedimentation tank (13). A gravel layer (110), an activated carbon layer (111) and a biofilm layer (112) are sequentially arranged in the reservoir (11) from top to bottom.

3. A sustainable comprehensive management system for desert area consumption land according to claim 1, characterized in that, The reagent addition pipeline (21) includes a reagent addition main pipe (210) connected to the water storage module (1), several shunt branch pipes (211) connected to the reagent addition main pipe (210), T-shaped addition pipes (212) provided on each of the shunt branch pipes (211) and corresponding to each of the drip irrigation pipes (32) one by one, and spraying heads (213) provided at the bottom of each of the T-shaped addition pipes (212) and corresponding to the planting cylinders (41) one by one.

4. A sustainable comprehensive management system for desert area consumption land according to claim 3, characterized in that, The shunt branch pipes (211) correspond to the water delivery main pipes (31) one by one and are connected to the side wall of the water delivery main pipe (31) through connecting sleeves (214).

5. A sustainable comprehensive management system for desert area consumption land according to claim 1, characterized in that, The diversion pipe (43) is a corrugated flexible pipe. Both ends of the diversion pipe (43) are connected to the side wall of the planting cylinder (41) through buckles and a one-way water permeable membrane (431) is provided at the connection.

6. A sustainable comprehensive management system for desert area consumption land according to claim 1, characterized in that, A mixing cylinder (200) is provided at the center inside the pretreatment tank (20), several batching cylinders (201) are provided inside the pretreatment tank (20) and distributed circumferentially around the mixing cylinder (200), a spiral mixing pipe (202) is provided on the outer wall of the mixing cylinder (200), and communicating branch pipes (203) for connecting each of the batching cylinders (201) and the spiral mixing pipe (202) are provided. The mixing cylinder (200) is connected to the reagent addition pipeline (20). An addition port (22) penetrating through to the outside of the pretreatment tank (20) is provided on the side wall of the batching cylinder (201). The bottom end of the spiral mixing pipe (202) communicates with the inside of the mixing cylinder (200).

7. A sustainable comprehensive management system for desert area consumption land according to claim 6, characterized in that, Each of the connecting branch pipes (203) is provided with a solenoid valve (204) and a flow indicator (205). A solar power generation device (23) is provided at the upper end of the pretreatment tank (20), and the solar power generation device (23) is electrically connected to the solenoid valve (204) and the flow indicator (205).

8. A sustainable comprehensive management system for desert area consumption land according to claim 6, characterized in that, A transparent observation window (206) is provided on the pretreatment tank (20) corresponding to each of the dosing cylinders (201). Each dosing cylinder (201) is made of a transparent material, and a scale (207) is provided on the outer wall of the dosing cylinder (201).

9. A comprehensive treatment method for desert area disposal sites, based on a sustainable comprehensive treatment system for desert area disposal sites according to any one of claims 1-8, characterized in that, It includes the following steps: S1. Pump the water in the water storage module (1) to each water delivery main pipe (31) and the pretreatment tank (20) through a liquid extraction pump (5). Among them, control the flow rate of the liquid extraction pump (5) to be 5-10 m 3 / h; S2. The water body in the water storage module (1) is pumped to each water delivery main pipe (31), then passes through each drip irrigation pipe (32) on each water delivery main pipe (31), and is sprayed onto the plant seedlings (42) in the corresponding planting cylinder (41) through the water outlet of the drip irrigation pipe (32) to regularly supply water to the plant seedlings (42). Among them, the drip head flow rate of the drip irrigation pipe (32) is 2-4 L / h, and the irrigation frequency is once a day in summer and once every three days in winter; S3. The water body in the water storage module (1) is pumped into the pretreatment tank (20) to dilute the N-P-K-Mg composite reagent placed in the pretreatment tank (20). Then, the diluted N-P-K-Mg composite reagent is evenly sprayed onto the plant seedlings (42) in the corresponding planting cylinder (41) through the reagent addition main pipe (210) to regularly supply supplementary nutrient elements to the plant seedlings (42). Among them, the dilution ratio of the N-P-K-Mg composite reagent is 1:30 to 1:50; S4. When spraying the reagent or water body into each planting cylinder (41), since adjacent two planting cylinders (41) are connected by a diversion pipe (43), and the diversion pipe (43) serves as a horizontal flow channel, the excess liquid can be quickly guided to the adjacent planting cylinder (41).

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