Ternary sand-fixing, water-retaining, seepage-proofing, fertility-increasing, vegetation recovering and reconstructing method

Abstract

The invention discloses a ternary sand-fixing water-retaining seepage-proofing fertility-increasing vegetation restoration and reconstruction method, and relates to the technical field of operation methods of sand ecological restoration, and the method comprises the following steps: S1, laying a layer of seepage-proofing material on the surface layer of a target planting area to reduce water seepage and enhance soil water-retaining capacity; s2, mixing a water-retaining agent with local sandy soil to form a water storage layer, and paving the water storage layer on the surface of the impermeable material to ensure that the plant root system can obtain water for a long time; s3, applying an organic fertility intensifier to the water storage layer to improve the organic matter content and nutrient supply capacity of the soil; s4, appropriate plants are selected for planting, after planting, the vegetation growth condition and the soil humidity are checked regularly, a water-retaining agent and an organic fertility increasing agent are supplemented in time according to needs, and it is ensured that the vegetation can grow healthily. The planting method provided by the invention has a remarkable yield increasing effect, the survival rate of plants can be effectively improved, and the effect of fixing sand for a long time is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of operating methods for sandy land ecological restoration, and in particular to a three-element sand fixation, water conservation, anti-seepage, fertilization, restoration and reconstruction of vegetation method. Background Art

[0002] Land desertification is a serious land degradation phenomenon that mainly occurs in arid, semi-arid and some semi-humid areas. Its root cause lies in excessive human activities and the disharmony between people and land. Its most obvious sign is the frequent occurrence of large-scale wind and sand activities. This problem has now become a major ecological, social and economic challenge that needs to be solved urgently on a global scale. Land desertification not only seriously hinders the construction and improvement of the regional ecological environment, but also poses a huge threat to the sustainable development of social economy.

[0003] In response to this severe situation, the current main governance strategy is to prevent wind and fix sand through afforestation. However, the unique continental climate characteristics of the sandy area - small annual rainfall, large evaporation, significant temperature difference between day and night, and strong wind - bring huge challenges to governance. As the life cycle of plants on the mobile sand dunes cycles, the mobile sandy parent material gradually transforms into aeolian sand. This soil has a rough texture, loose structure, low water and fertilizer retention capacity, and nitrogen and potassium are easily lost. Although phosphorus has low mobility, it accumulates slowly, and organic matter accumulates slowly, making it difficult to improve soil fertility. These characteristics make it difficult for plants to thrive even though they can germinate and emerge from the soil in the early stages of growth. The insufficient content of nutrients and organic matter in the soil cannot meet the needs of sustained plant growth, which further aggravates the difficulty of desertification control. Therefore, optimizing governance strategies, improving soil fertility, and improving the ecological environment in sandy areas have become key issues that need to be urgently addressed. Summary of the invention

[0004] In order to solve the problems in the prior art, the present application provides a three-element sand fixation, water conservation, anti-seepage, fertilization, restoration and reconstruction of vegetation method.

[0005] The present application provides a three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method using the following technical solutions: A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method comprises the following steps: S1. Lay a layer of anti-seepage material on the surface of the target planting area to reduce water leakage and enhance the soil's water retention capacity; S2. Mix the water retaining agent with local sand to form a water storage layer, and lay it on the surface of the anti-seepage material to ensure that the plant roots can obtain water for a long time; S3. Apply organic fertilizer to the water storage layer to increase the soil organic matter content and nutrient supply capacity; S4. Select suitable plants for planting. After planting, regularly check the growth of vegetation and soil moisture, and add water-retaining agents and organic fertilizers as needed to ensure the healthy growth of vegetation; The raw materials of the organic fertilizer enhancer include: earthworm fertilizer, biological algae, decomposed fungus residue, wormwood seed glue, lime powder, bacillus licheniformis, nitrogen-fixing bacteria, straw charcoal powder, livestock and poultry excrement, and urea.

[0006] Preferably, the anti-seepage material is an anti-seepage membrane, anti-seepage sand, or both.

[0007] Preferably, the thickness of the moisture storage layer is 25-65 cm.

[0008] Preferably, in the moisture storage layer, the mass ratio of the water retaining agent to the local sand is 1:300-500.

[0009] Preferably, the water retaining agent is composed of the following raw materials in parts by weight: 1-2 parts of humic acid, 50-100 parts of acrylic acid solution, 1-2 parts of starch, 2.7-5.4 parts of 27% sodium hydroxide solution, 200-300 parts of water, 12-24 parts of sodium alginate, 1.2-2.4 parts of initiator, and 0.03-0.06 parts of cross-linking agent.

[0010] Preferably, the degree of neutralization of the acrylic acid solution is 55-65%.

[0011] Preferably, the preparation method of the water-retaining agent comprises the following steps: Add 27% by mass sodium hydroxide solution and water to humic acid and starch, stir magnetically until dissolved, add sodium alginate, stir and heat to 40-50°C, introduce nitrogen to expel oxygen, then add initiator and stir evenly, add acrylic acid solution and cross-linking agent, heat to 70-80°C, continue stirring until the reaction system becomes viscous, stop stirring, bathe at 70-80°C for 2-4h, wash with deionized water 2-3 times after the reaction is completed, soak for a day and night to remove unreacted monomers, then dry at 60-70°C, crush, and pass through a 50-100 mesh sieve to obtain a water retaining agent.

[0012] Preferably, the application amount of the organic fertilizer is 4-7 kg per square meter.

[0013] Preferably, the weight proportions of the raw materials of the organic fertilizer enhancer are 10-20 parts of earthworm fertilizer, 5-15 parts of biological algae, 5-10 parts of decomposed fungus residue, 2-8 parts of Artemisia seed gum, 3-10 parts of lime powder, 2-5 parts of Bacillus licheniformis, 2-5 parts of nitrogen-fixing bacteria, 20-40 parts of straw charcoal powder, 30-50 parts of livestock and poultry manure, and 5-10 parts of urea.

[0014] Preferably, the method for preparing the organic fertilizer agent comprises the following steps: Raw materials including earthworm fertilizer, biological algae, decomposed fungus residue, wormwood seed glue, lime powder, bacillus licheniformis, nitrogen-fixing bacteria, straw charcoal powder, livestock and poultry manure and urea are weighed by weight, mixed evenly, passed through a 50-100 mesh sieve, and put into a granulator for granulation to obtain an organic fertilizer agent.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. By adopting the above technical solution, this application lays anti-seepage materials in the target area to reduce water leakage, and then mixes water-retaining agents and sand on the materials to form a water storage layer, effectively enhancing the soil's water retention capacity and ensuring that plant roots can obtain the required water for a long time; at the same time, applying organic fertilizer agents increases the soil's organic matter content and nutrient supply, providing a better nutritional environment for plant growth. Select suitable plants for planting, regularly check vegetation growth and soil moisture, and add water-retaining agents and organic fertilizer agents in a timely manner. This series of measures jointly promotes the healthy growth of vegetation in sandy land, effectively improves the ecological environment of sandy land, enhances soil fertility and water retention, and provides strong support for sandy land management and ecological restoration.

[0016] 2. By adopting the above-mentioned technical scheme, the present application adopts humic acid, starch, sodium alginate and acrylic acid to prepare humic acid hydrogel, which is used as a water-retaining agent and has strong water absorption and water retention capabilities. Its molecular structure contains a large number of hydrophilic groups, which can form hydrogen bonds with water molecules, thereby absorbing and fixing a large amount of water, which can significantly improve the water retention performance of sandy soil, reduce water evaporation and loss, and provide a stable source of water for plant growth; at the same time, the addition of humic acid hydrogel can enhance the erosion resistance of sandy soil, and its water absorption and water retention properties help reduce water loss and wind erosion on the soil surface, and also help fix soil particles and prevent soil loss.

[0017] 3. By adopting the above technical solution, earthworm manure, as an organic fertilizer, has good water permeability and air permeability, can effectively improve the structure of the soil, increase soil fertility and regulate soil moisture. Earthworm manure also contains a large amount of nutrients such as soluble salts, humus, polysaccharides, amino acids and biological enzymes, which can meet the different needs of plant growth and promote plant growth and development. Earthworm manure can promote the formation of soil aggregates, promote the composition and quantity of soil microbial communities, increase the content of soil clay and silt, and reduce the content of sand. The increase of fine particles in the soil and the decrease of sand content make the sandy soil more resistant to wind erosion and easier to stick together. The formed aggregate structure will allow water storage, water permeability and ventilation to proceed together, thereby achieving the purpose of improving soil quality. The decomposed fungus residue contains a large amount of nutrients such as nitrogen, phosphorus, and potassium, which are necessary for plant growth. After the decomposed fungus residue is applied to the sandy soil, these nutrients can be absorbed and utilized by the plant roots, thereby improving the fertility of the soil. In addition, the organic matter in the decomposed fungus residue can also promote the reproduction and activity of soil microorganisms. These microorganisms will release more nutrients in the process of decomposing organic matter, further enriching the nutrient content of the soil. When combined with earthworm fertilizer, it can significantly increase the organic matter content of the soil, improve the soil structure, make the soil more fertile, and be more conducive to vegetation growth; Biological algae can form an algae crust on the soil surface, which can effectively reduce the erosion of wind and water on the desertified surface. This algae crust can change the physical and chemical properties of the soil, increase the nutrient content of the soil, enhance the soil water holding capacity, and promote the growth of soil microorganisms and sand plants, thereby changing the single and loose original state of the desertified soil surface, making the soil surface tend to be fixed, and enhancing the soil's resistance to erosion; Artemisia seed gum has a strong ability to absorb and swell, and can form colloids in the soil, thereby filling the gaps between soil particles, increasing soil cohesion and stability, and helping to improve the loose and wind-eroded characteristics of sandy soils and improve soil resistance to erosion. The colloidal structure of Artemisia seed gum can also absorb and fix nutrients in the soil, reduce nutrient loss, and promote the activity of soil microorganisms, which can decompose organic matter and release nutrients for plants to absorb and utilize. Therefore, the addition of Artemisia seed gum helps to improve soil fertility and promote plant growth. Compounding the above substances with commonly used organic fertilizers can not only significantly increase the organic matter content of the soil, improve the soil structure, make the soil more fertile, and be more conducive to vegetation growth, but the organic fertilizer agent provided in the present application can also enhance the cohesion and stability of the soil, reduce water loss and wind erosion on the soil surface, and enhance the soil's resistance to erosion. DETAILED DESCRIPTION

[0018] The present application is further described in detail below with reference to the embodiments.

[0019] Preparation Example

[0020] Preparation Example 1 Preparation of water-retaining agent

[0021] Preparation Example 1.1

[0022] To 1g humic acid and 1g starch, add 2.7g sodium hydroxide solution with a mass fraction of 27% and 200g water, stir magnetically until dissolved, add 12g sodium alginate, stir and heat to 40°C, introduce nitrogen to expel oxygen, then add 1.2g initiator potassium persulfate and stir evenly, add 50g acrylic acid solution with a neutralization degree of 55% and 0.03g cross-linking agent N,N'-methylenebisacrylamide, heat to 70°C, continue stirring until the reaction system becomes viscous, stop stirring, and place in a water bath at 70°C for 2h. After the reaction is completed, wash twice with deionized water and soak for a day and night to remove unreacted monomers, then dry at 60°C, crush, and pass through a 100-mesh sieve to obtain a water retaining agent.

[0023] Preparation Example 1.2 To 1.5g humic acid and 1.5g starch, add 4g sodium hydroxide solution with a mass fraction of 27% and 250g water, stir magnetically until dissolved, add 18g sodium alginate, stir and heat to 45°C, introduce nitrogen to expel oxygen, then add 1.8g initiator potassium persulfate and stir evenly, add 75g acrylic acid solution with a neutralization degree of 55% and 0.045g cross-linking agent N,N'-methylenebisacrylamide, heat to 75°C, continue stirring until the reaction system becomes viscous, stop stirring, and place in a water bath at 75°C for 3h. After the reaction is completed, wash twice with deionized water and soak for a day and night to remove unreacted monomers, then dry at 65°C, crush, and pass through an 80-mesh sieve to obtain a water retaining agent.

[0024] Preparation Example 1.3 Add 5.4g of 27% sodium hydroxide solution and 300g of water to 2g of humic acid and 2g of starch, stir magnetically until dissolved, add 24g of sodium alginate, stir and heat to 50°C, introduce nitrogen to expel oxygen, then add 2.4g of initiator potassium persulfate and stir evenly, add 100g of 55% neutralization acrylic acid solution and 0.06g of cross-linking agent N,N'-methylenebisacrylamide, heat to 80°C, continue stirring until the reaction system becomes viscous, stop stirring, and place in a water bath at 80°C for 4h. After the reaction is completed, wash with deionized water 3 times and soak for a day and night to remove unreacted monomers, then dry at 70°C, crush, and pass through a 50-mesh sieve to obtain a water retaining agent.

[0025] Preparation Example 1.4 The difference between Preparation Example 1.4 and Preparation Example 1.1 is that the neutralization degree of the acrylic acid solution used in Preparation Example 1.4 is 60%.

[0026] Preparation Example 1.5 The difference between Preparation Example 1.5 and Preparation Example 1.1 is that the neutralization degree of the acrylic acid solution used in Preparation Example 1.5 is 65%.

[0027] Preparation Example 1.6 The difference between Preparation Example 1.6 and Preparation Example 1.1 is that the neutralization degree of the acrylic acid solution used in Preparation Example 1.6 is 50%.

[0028] Preparation Example 1.7 The difference between Preparation Example 1.7 and Preparation Example 1.1 is that the neutralization degree of the acrylic acid solution used in Preparation Example 1.7 is 70%.

[0029] Preparation Example 2 Preparation of organic fertilizer

[0030] Preparation Example 2.1

[0031] Weigh 10g of earthworm fertilizer, 5g of biological algae, 5g of decomposed fungus residue, 2g of Artemisia ordosica seed gum, 3g of lime powder, 2g of Bacillus licheniformis, 2g of nitrogen-fixing bacteria, 20g of straw charcoal powder, 30g of livestock and poultry manure, and 5g of urea, mix them evenly, pass through a 100-mesh sieve, and put them into a granulator for granulation to obtain an organic fertilizer agent.

[0032] Preparation Example 2.2 Weigh 15g of earthworm fertilizer, 10g of biological algae, 8g of decomposed fungus residue, 5g of Artemisia ordosica seed gum, 6g of lime powder, 4.5g of Bacillus licheniformis, 4.5g of nitrogen-fixing bacteria, 30g of straw charcoal powder, 40g of livestock and poultry manure, and 8.5g of urea, mix them evenly, pass through an 80-mesh sieve, and put them into a granulator for granulation to obtain an organic fertilizer agent.

[0033] Preparation Example 2.3 Weigh 20g of earthworm fertilizer, 15g of biological algae, 10g of decomposed fungus residue, 8g of Artemisia seed gum, 10g of lime powder, 5g of Bacillus licheniformis, 5g of nitrogen-fixing bacteria, 40g of straw charcoal powder, 50g of livestock and poultry manure, and 10g of urea, mix them evenly, pass through a 50-mesh sieve, and put them into a granulator for granulation to obtain an organic fertilizer agent.

[0034] Preparation Example 2.4 The difference between Preparation Example 2.4 and Preparation Example 2.1 is that no earthworm fertilizer is added in Preparation Example 2.4.

[0035] Preparation Example 2.5 The difference between Preparation Example 2.5 and Preparation Example 2.1 is that no biological algae is added in Preparation Example 2.5.

[0036] Preparation Example 2.6 The difference between Preparation Example 2.6 and Preparation Example 2.1 is that no decomposed fungus residue is added in Preparation Example 2.6.

[0037] Preparation Example 2.7 The difference between Preparation Example 2.7 and Preparation Example 2.1 is that Artemisia ordosica seed gum is not added in Preparation Example 2.7.

[0038] Example

[0039] Example 1

[0040] A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method comprises the following steps: S1. Lay a 1mm thick HDPE anti-seepage membrane on the surface of the target planting area to reduce water leakage and enhance the soil's water retention capacity; S2. The water-retaining agent prepared in Example 1.1 was mixed with local sand in a mass ratio of 1:300 to form a water storage layer, which was laid on the surface of the anti-seepage material with a thickness of 25 cm to ensure that the plant roots can obtain water for a long time; S3. Applying the organic fertilizer prepared in Preparation Example 2.1 to the water storage layer in an amount of 4 kg per square meter to increase the soil organic matter content and nutrient supply capacity; S4. Select suitable plants for planting. After planting, regularly check the vegetation growth and soil moisture, and add water-retaining agent and organic fertilizer agent as needed to ensure the healthy growth of vegetation. The plant selected in this embodiment is the drought-resistant and lodging-resistant rice variety Green Drought No. 1, and the sandy soil was taken from the Taklimakan Desert in Aksu, Xinjiang.

[0041] Example 2 A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method comprises the following steps: S1. Lay a layer of anti-seepage sand with a thickness of 10mm on the surface of the target planting area to reduce water leakage and enhance the soil's water retention capacity; S2. The water-retaining agent prepared in Example 1.1 was mixed with local sand in a mass ratio of 1:300 to form a water storage layer, which was laid on the surface of the anti-seepage material with a thickness of 25 cm to ensure that the plant roots can obtain water for a long time; S3. Applying the organic fertilizer prepared in Preparation Example 2.1 to the water storage layer in an amount of 4 kg per square meter to increase the soil organic matter content and nutrient supply capacity; S4. Select suitable plants for planting. After planting, regularly check the vegetation growth and soil moisture, and add water-retaining agent and organic fertilizer agent as needed to ensure the healthy growth of vegetation. The plant selected in this embodiment is the drought-resistant and lodging-resistant rice variety Green Drought No. 1, and the sandy soil was taken from the Taklimakan Desert in Aksu, Xinjiang.

[0042] Example 3 A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method comprises the following steps: S1. Lay a 1mm thick HDPE anti-seepage membrane and 10mm anti-seepage sand on the surface of the target planting area to reduce water leakage and enhance the soil's water retention capacity; S2. The water-retaining agent prepared in Example 1.1 was mixed with local sand in a mass ratio of 1:300 to form a water storage layer, which was laid on the surface of the anti-seepage material with a thickness of 25 cm to ensure that the plant roots can obtain water for a long time; S3. Applying the organic fertilizer prepared in Preparation Example 2.1 to the water storage layer in an amount of 4 kg per square meter to increase the soil organic matter content and nutrient supply capacity; S4. Select suitable plants for planting. After planting, regularly check the vegetation growth and soil moisture, and add water-retaining agent and organic fertilizer agent as needed to ensure the healthy growth of vegetation. The plant selected in this embodiment is the drought-resistant and lodging-resistant rice variety Green Drought No. 1, and the sandy soil was taken from the Taklimakan Desert in Aksu, Xinjiang.

[0043] Example 4 A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method comprises the following steps: S1. Lay a 1mm thick HDPE anti-seepage membrane on the surface of the target planting area to reduce water leakage and enhance the soil's water retention capacity; S2. The water-retaining agent prepared in Example 1.1 was mixed with local sand in a mass ratio of 1:400 to form a water storage layer, which was laid on the surface of the anti-seepage material with a thickness of 25 cm to ensure that the plant roots can obtain water for a long time; S3. Applying the organic fertilizer prepared in Preparation Example 2.1 to the water storage layer in an amount of 4 kg per square meter to increase the soil organic matter content and nutrient supply capacity; S4. Select suitable plants for planting. After planting, regularly check the vegetation growth and soil moisture, and add water-retaining agent and organic fertilizer agent as needed to ensure the healthy growth of vegetation. The plant selected in this embodiment is the drought-resistant and lodging-resistant rice variety Green Drought No. 1, and the sandy soil was taken from the Taklimakan Desert in Aksu, Xinjiang.

[0044] Example 5 A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method comprises the following steps: S1. Lay a 1mm thick HDPE anti-seepage membrane on the surface of the target planting area to reduce water leakage and enhance the soil's water retention capacity; S2. The water retaining agent prepared in Example 1.1 was mixed with local sand in a mass ratio of 1:500 to form a water storage layer, which was laid on the surface of the anti-seepage material with a thickness of 25 cm to ensure that the plant roots can obtain water for a long time; S3. Applying the organic fertilizer prepared in Preparation Example 2.1 to the water storage layer in an amount of 4 kg per square meter to increase the soil organic matter content and nutrient supply capacity; S4. Select suitable plants for planting. After planting, regularly check the vegetation growth and soil moisture, and add water-retaining agent and organic fertilizer agent as needed to ensure the healthy growth of vegetation. The plant selected in this embodiment is the drought-resistant and lodging-resistant rice variety Green Drought No. 1, and the sandy soil was taken from the Taklimakan Desert in Aksu, Xinjiang.

[0045] Example 6 A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method comprises the following steps: S1. Lay a 1mm thick HDPE anti-seepage membrane on the surface of the target planting area to reduce water leakage and enhance the soil's water retention capacity; S2. The water-retaining agent prepared in Example 1.1 was mixed with local sand in a mass ratio of 1:300 to form a water storage layer, which was laid on the surface of the anti-seepage material with a thickness of 45 cm to ensure that the plant roots can obtain water for a long time; S3. Applying the organic fertilizer prepared in Preparation Example 2.1 to the water storage layer in an amount of 4 kg per square meter to increase the soil organic matter content and nutrient supply capacity; S4. Select suitable plants for planting. After planting, regularly check the vegetation growth and soil moisture, and add water-retaining agent and organic fertilizer agent as needed to ensure the healthy growth of vegetation. The plant selected in this embodiment is the drought-resistant and lodging-resistant rice variety Green Drought No. 1, and the sandy soil was taken from the Taklimakan Desert in Aksu, Xinjiang.

[0046] Example 7 A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method comprises the following steps: S1. Lay a 1mm thick HDPE anti-seepage membrane on the surface of the target planting area to reduce water leakage and enhance the soil's water retention capacity; S2. The water-retaining agent prepared in Example 1.1 was mixed with local sand in a mass ratio of 1:300 to form a water storage layer, which was laid on the surface of the anti-seepage material with a thickness of 65 cm to ensure that the plant roots can obtain water for a long time; S3. Applying the organic fertilizer prepared in Preparation Example 2.1 to the water storage layer in an amount of 4 kg per square meter to increase the soil organic matter content and nutrient supply capacity; S4. Select suitable plants for planting. After planting, regularly check the vegetation growth and soil moisture, and add water-retaining agent and organic fertilizer agent as needed to ensure the healthy growth of vegetation. The plant selected in this embodiment is the drought-resistant and lodging-resistant rice variety Green Drought No. 1, and the sandy soil was taken from the Taklimakan Desert in Aksu, Xinjiang.

[0047] Example 8 A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method comprises the following steps: S1. Lay a 1mm thick HDPE anti-seepage membrane on the surface of the target planting area to reduce water leakage and enhance the soil's water retention capacity; S2. The water-retaining agent prepared in Example 1.1 was mixed with local sand in a mass ratio of 1:300 to form a water storage layer, which was laid on the surface of the anti-seepage material with a thickness of 25 cm to ensure that the plant roots can obtain water for a long time; S3. Applying the organic fertilizer prepared in Preparation Example 2.1 to the water storage layer in an amount of 5.5 kg per square meter to increase the soil organic matter content and nutrient supply capacity; S4. Select suitable plants for planting. After planting, regularly check the vegetation growth and soil moisture, and add water-retaining agent and organic fertilizer agent as needed to ensure the healthy growth of vegetation. The plant selected in this embodiment is the drought-resistant and lodging-resistant rice variety Green Drought No. 1, and the sandy soil was taken from the Taklimakan Desert in Aksu, Xinjiang.

[0048] Example 9 A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method comprises the following steps: S1. Lay a 1mm thick HDPE anti-seepage membrane on the surface of the target planting area to reduce water leakage and enhance the soil's water retention capacity; S2. The water-retaining agent prepared in Example 1.1 was mixed with local sand in a mass ratio of 1:300 to form a water storage layer, which was laid on the surface of the anti-seepage material with a thickness of 25 cm to ensure that the plant roots can obtain water for a long time; S3. Applying the organic fertilizer prepared in Preparation Example 2.1 to the water storage layer in an amount of 7 kg per square meter to increase the soil organic matter content and nutrient supply capacity; S4. Select suitable plants for planting. After planting, regularly check the vegetation growth and soil moisture, and add water-retaining agent and organic fertilizer agent as needed to ensure the healthy growth of vegetation. The plant selected in this embodiment is the drought-resistant and lodging-resistant rice variety Green Drought No. 1, and the sandy soil was taken from the Taklimakan Desert in Aksu, Xinjiang.

[0049] Example 10 The difference between Example 10 and Example 1 is that the water-retaining agent used in Example 10 comes from Preparation Example 1.2.

[0050] Embodiment 11 The difference between Example 11 and Example 1 is that the water-retaining agent used in Example 11 comes from Preparation Example 1.3.

[0051] Example 12 The difference between Example 12 and Example 1 is that the water-retaining agent used in Example 12 comes from Preparation Example 1.4.

[0052] Embodiment 13 The difference between Example 13 and Example 1 is that the water-retaining agent used in Example 13 comes from Preparation Example 1.5.

[0053] Embodiment 14 The difference between Example 14 and Example 1 is that the water-retaining agent used in Example 14 comes from Preparation Example 1.6.

[0054] Embodiment 15 The difference between Example 15 and Example 1 is that the water-retaining agent used in Example 15 comes from Preparation Example 1.7.

[0055] Example 16 The difference between Example 16 and Example 1 is that the organic fertilizer agent used in Example 16 comes from Preparation Example 2.2.

[0056] Embodiment 17 The difference between Example 17 and Example 1 is that the organic fertilizer agent used in Example 17 comes from Preparation Example 2.3.

[0057] Embodiment 18 The difference between Example 18 and Example 1 is that the organic fertilizer agent used in Example 18 comes from Preparation Example 2.4.

[0058] Embodiment 19 The difference between Example 19 and Example 1 is that the organic fertilizer agent used in Example 19 comes from Preparation Example 2.5.

[0059] Embodiment 20 The difference between Example 20 and Example 1 is that the organic fertilizer agent used in Example 20 comes from Preparation Example 2.6.

[0060] Embodiment 21 The difference between Example 21 and Example 1 is that the organic fertilizer agent used in Example 21 comes from Preparation Example 2.7.

[0061] Performance testing In order to verify the experimental effect of the above planting technology, the method of planting rice commonly used in deserts in my country (film covering method) was set as a comparative example, and the yield increase rate (%) of the planting methods of Examples 1-21 was detected.

[0062] The specific test results are as follows: Table 1 Performance test results

[0063] It can be seen from the test results in Table 1 that the three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method provided in the present application has a significant yield-increasing effect, can effectively improve the survival rate of plants, and achieve a long-term sand fixation effect.

[0064] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method, characterized by: The following steps are involved: S1. Lay a layer of anti-seepage material on the surface of the target planting area to reduce water leakage and enhance the soil's water retention capacity; S2. Mix the water retaining agent with local sand to form a water storage layer, and lay it on the surface of the anti-seepage material to ensure that the plant roots can obtain water for a long time; S3. Apply organic fertilizer to the water storage layer to increase the soil organic matter content and nutrient supply capacity; S4. Select suitable plants for planting. After planting, regularly check the growth of vegetation and soil moisture, and add water-retaining agents and organic fertilizers as needed to ensure the healthy growth of vegetation; The raw materials of the organic fertilizer enhancer include: earthworm fertilizer, biological algae, decomposed fungus residue, wormwood seed glue, lime powder, bacillus licheniformis, nitrogen-fixing bacteria, straw charcoal powder, livestock and poultry excrement, and urea.

2. A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method according to claim 1, characterized in that: The anti-seepage material is an anti-seepage membrane, anti-seepage sand, or both.

3. A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method according to claim 1, characterized in that: The thickness of the moisture storage layer is 25-65 cm.

4. A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method according to claim 1 or 3, characterized in that: In the water storage layer, the mass ratio of the water retaining agent to the local sand is 1:300-500.

5. A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method according to claim 1, characterized in that: The water retaining agent is composed of the following raw materials in parts by weight: 1-2 parts of humic acid, 50-100 parts of acrylic acid solution, 1-2 parts of starch, 2.7-5.4 parts of 27% sodium hydroxide solution by mass, 200-300 parts of water, 12-24 parts of sodium alginate, 1.2-2.4 parts of initiator, and 0.03-0.06 parts of crosslinking agent.

6. A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method according to claim 5, characterized in that: The neutralization degree of the acrylic acid solution is 55-65%.

7. A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method according to claim 5, characterized in that: The preparation method of the water-retaining agent comprises the following steps: Add 27% by mass sodium hydroxide solution and water to humic acid and starch, stir magnetically until dissolved, add sodium alginate, stir and heat to 40-50°C, introduce nitrogen to expel oxygen, then add initiator and stir evenly, add acrylic acid solution and cross-linking agent, heat to 70-80°C, continue stirring until the reaction system becomes viscous, stop stirring, bathe at 70-80°C for 2-4h, wash with deionized water 2-3 times after the reaction is completed, soak for a day and night to remove unreacted monomers, then dry at 60-70°C, crush, and pass through a 50-100 mesh sieve to obtain a water retaining agent.

8. A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method according to claim 1, characterized in that: The application amount of the organic fertilizer is 4-7 kg per square meter.

9. A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method according to claim 1, characterized in that: The weight proportions of the raw materials of the organic fertilizer enhancer are 10-20 parts of earthworm fertilizer, 5-15 parts of biological algae, 5-10 parts of decomposed fungus residue, 2-8 parts of wormwood seed gum, 3-10 parts of lime powder, 2-5 parts of Bacillus licheniformis, 2-5 parts of nitrogen-fixing bacteria, 20-40 parts of straw charcoal powder, 30-50 parts of livestock and poultry manure, and 5-10 parts of urea.

10. A three-element sand fixation, water conservation, anti-seepage, fertilization and vegetation restoration and reconstruction method according to claim 9, characterized in that: The preparation method of the organic fertilizer agent, The following steps are involved: Raw materials including earthworm fertilizer, biological algae, decomposed fungus residue, wormwood seed glue, lime powder, bacillus licheniformis, nitrogen-fixing bacteria, straw charcoal powder, livestock and poultry manure and urea are weighed by weight, mixed evenly, passed through a 50-100 mesh sieve, and put into a granulator for granulation to obtain an organic fertilizer agent.

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