Anti-scouring loamy ecological bank protection substrate as well as preparation method and application thereof

Abstract

The invention relates to the technical field of river regulation, in particular to an anti-scouring loamy ecological bank protection matrix as well as a preparation method and application of the anti-scouring loamy ecological bank protection matrix. The nutrient solution comprises the following components in parts by weight: 5-9 parts of a biogel curing agent, 5-15 parts of artificial zeolite, 5-15 parts of biochar, 15-35 parts of a compound fertilizer, 10-30 parts of composite activated carbon, 20-40 parts of plant fiber, 10-20 parts of plant ash, 2-6 parts of a rooting regulator, 200-300 parts of soil and 80-100 parts of water. Wherein the artificial zeolite comprises artificial zeolite prepared by taking fly ash as a raw material; and / or the biochar comprises biochar prepared by taking animal shells as a raw material. According to the anti-scouring loamy ecological bank protection matrix, cement is replaced with the biological gel curing agent, the surface layer of a river bank is protected and reinforced through the loamy material on the premise that the inhabiting environment of aquatic animals and plants is guaranteed, and the soil and water of the river bank can be repaired.

Description

Technical Field

[0001] The present application relates to the technical field of river management, and in particular to an anti-scouring loam ecological bank protection matrix and a preparation method and application thereof. Background Art

[0002] As an ecological transition zone between terrestrial ecosystems and aquatic ecosystems, the riparian zone has high biodiversity and productivity. However, the riparian zone is very sensitive to changes in external environmental conditions and is easily disturbed by natural forces and human activities. The natural recovery process after damage is very long. Therefore, the development of bank protection projects is of great significance.

[0003] In order to ensure safety and durability, traditional revetment structures are mainly made of hardened and low-roughness materials, and the river bank lining is hardened. This not only changes the natural pattern of the mainstream, shoals and rapids in the river, but also cuts off the contact between aquatic organisms and land, causing aquatic plants and animals living in the river to lose their living space, destroying biological diversity and damaging the health of the river and riverbank ecosystem. With the development of society and the improvement of people's environmental awareness, ecological revetment has become a key research direction of revetment engineering. At present, ecological revetment materials are mainly ecological concrete. This type of revetment material adds porous aggregates to ordinary concrete. On the basis of having the strength of ordinary concrete, it also gives the material better permeability for preparation of attachment and microbial growth. However, although ecological concrete has good biocompatibility, it has the problem of strong alkalinity, which is easy to affect the growth of plants, and hard materials will cause some species to spawn or survive, thus causing the homogenization of biological communities. For example, the prior art CN202210565629.5 provides a high-strength ecological concrete and test block preparation method for river and lake ecological revetment. Although it has good strength, porosity and permeability coefficient, a large amount of cement is used in the preparation process, and the final ecological concrete is relatively hard and cannot provide growth or reproduction space for some aquatic animals like soil.

[0004] Therefore, a new ecological bank protection material is needed to improve the stability of the river bank structure without affecting the ecological environment. Summary of the invention

[0005] The problem that this application aims to solve is to provide an erosion-resistant loam ecological bank protection matrix and its preparation method and application, replace cement with a biogel curing agent, and use loam materials to protect and reinforce the river bank surface while ensuring the habitat of aquatic plants and animals, and to repair the river bank soil and water.

[0006] In order to solve the above technical problems, this application adopts the following technical solutions:

[0007] On the one hand, the present application provides an anti-scouring loam ecological bank protection matrix, which comprises, by weight:

[0008]

[0009]

[0010] Preferably, the artificial zeolite includes artificial zeolite made from fly ash as raw material.

[0011] Preferably, the biochar includes biochar made from animal crustaceans as raw materials.

[0012] Furthermore, the compound fertilizer includes compound bacterial powder, controlled-release compound fertilizer and compost fertilizer.

[0013] Furthermore, the composite activated carbon includes wood activated carbon powder and fruit shell activated carbon powder.

[0014] Furthermore, the plant fiber includes crop straw.

[0015] Furthermore, the rooting regulator includes seaweed essence, mineral potassium humate and fish protein.

[0016] Furthermore, the soil includes sandy loam with a clay content of 45% to 50%.

[0017] Furthermore, the weight ratio of the composite bacterial powder, the controlled-release compound fertilizer and the compost fertilizer is (2-4):(10-16):(5-7).

[0018] Furthermore, the weight ratio of the wood activated carbon powder to the fruit shell activated carbon powder is (20-30):(5-9).

[0019] Furthermore, the weight ratio of the seaweed essence, the mineral potassium humate and the fish protein is (15-21):(11-15):(7-9).

[0020] Furthermore, the method for preparing the biogel curing agent comprises:

[0021] The water-soluble β-glucan and xanthan gum are added into distilled water at 85° C., and after first stirring and constant temperature water bathing, the biogel curing agent is obtained.

[0022] Preferably, the weight ratio of the water-soluble β-glucan to the xanthan gum is 6:(9-14).

[0023] Furthermore, the first stirring method includes magnetic stirring, the speed of the magnetic stirring is 1000 r / min, and the time of the magnetic stirring is 30 min.

[0024] Furthermore, the temperature of the constant temperature water bath is 70-80° C., and the time of the constant temperature water bath is 30-50 minutes.

[0025] On the other hand, the present application provides a method for preparing the above-mentioned soil ecological revetment matrix, comprising the following steps:

[0026] The water is added to the soil and stirred for the second time to obtain moist soil; the compound fertilizer, the plant fiber and the wood ash are added to the moist soil, stirred for the third time and then fermented once to obtain primary fermented soil; the artificial zeolite, the biochar, the composite activated carbon and the rooting regulator are added to the primary fermented soil and stirred for the fourth time to obtain a primary bank protection matrix; and the primary bank protection matrix is ​​fermented for the second time in a closed greenhouse, and the biogel curing agent is added immediately after the fermentation is completed, stirred for the fifth time and then cooled to obtain the loam ecological bank protection matrix.

[0027] Furthermore, the speeds of the second stirring, the third stirring and the fourth stirring are 80-100 r / min.

[0028] Furthermore, the temperature of the primary fermentation is 30-40°C, and the time of the primary fermentation is 48-72 hours.

[0029] Furthermore, the temperature of the secondary fermentation is 35-45° C., and the time of the secondary fermentation is 24-48 hours.

[0030] Furthermore, the speed of the fifth stirring is 800-1000 r / min, and the temperature of the fifth stirring is 40-50°C.

[0031] On the other hand, the present application provides the application of the above-mentioned soil ecological bank protection matrix or the above-mentioned method in river ecological bank protection, comprising the following steps:

[0032] The river bank slope is plowed until the surface is roughly flat; the gabion boxes are buried in the plowed river bank slope in a slope shape, the height of the gabion boxes buried in the soil is the same, and the height of the exposed parts of the gabion boxes is 20 to 40 cm; and the loam ecological bank protection matrix is ​​applied to the river bank slope to form a matrix layer, and the seeds of the slope protection plants are sown after the matrix layer is leveled.

[0033] Furthermore, the thickness of the matrix layer is 30 to 50 cm.

[0034] Furthermore, the slope protection plants include Bermuda grass, Amorpha fruticosa and white clover.

[0035] This application has the following beneficial effects

[0036] 1. The erosion-resistant loam ecological bank protection matrix of the present application uses biogel curing agent instead of cement. After curing, it can have a texture similar to that of soil. While reinforcing and protecting the river bank, it can restore the soil environment of the river bank itself to the greatest extent and can effectively resist rain erosion.

[0037] 2. The raw materials of the erosion-resistant loam ecological bank protection matrix of the present application are all bio-friendly materials, which will not burden the environment when used, and can effectively absorb heavy metals, organic pollutants and inorganic pollutants on the river bank.

[0038] 3. The erosion-resistant loam ecological bank protection matrix of the present application can promote the growth of plant roots, thereby realizing the organic combination of root reinforcement of the soil and solidifier reinforcement of the soil, achieving a safe, stable and environmentally friendly ecological management effect, and improving the ecological level of the river bank.

[0039] 4. The erosion-resistant loam ecological bank protection matrix of the present application can not only fix the soil, but also repair the soil. In the future, it can also be used for environmental restoration or slope fixation in multiple fields. It is a material with great development potential. DETAILED DESCRIPTION

[0040] The technical solutions in some embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments provided by the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present application.

[0041] Example 1

[0042] Follow these steps to prepare compound fertilizer:

[0043] S11. Add 2 parts of Junjian Type I, 10 parts of Zhongwo Aipu 45S15-15-15 and 5 parts of manure into a mixer, stir at a speed of 90 r / min for 30 minutes and then dry with cold air for 40 minutes to obtain the compound fertilizer.

[0044] Example 2

[0045] Follow these steps to prepare compound fertilizer:

[0046] S11. Add 3 parts of Junjian Type I, 13 parts of Zhongwo Aipu 45S15-15-15 and 6 parts of compost into a mixer, stir at a speed of 90 r / min for 30 minutes and then dry with cold air for 40 minutes to obtain the compound fertilizer.

[0047] Example 3

[0048] Follow these steps to prepare compound fertilizer:

[0049] S11. Add 4 parts of Junjian Type I, 16 parts of Zhongwo Aipu 45S15-15-15 and 7 parts of fermented fertilizer into a mixer, stir at a speed of 90 r / min for 30 minutes and then dry with cold air for 40 minutes to obtain the compound fertilizer.

[0050] Example 4

[0051] The composite activated carbon was prepared by the following steps:

[0052] S21. Add 20 parts of wood activated carbon particles and 5 parts of fruit shell activated carbon particles into a grinder and grind for 1 hour, then sieve through a 325-mesh sieve, collect the sieved powder, and obtain the mixed activated carbon powder.

[0053] Example 5

[0054] The composite activated carbon was prepared by the following steps:

[0055] S21. 25 parts of wood activated carbon particles and 7 parts of fruit shell activated carbon particles were added to a grinder and ground for 1 hour, then sieved using a 325-mesh sieve, and the sieved powder was collected to obtain the mixed activated carbon powder.

[0056] Example 6

[0057] The composite activated carbon was prepared by the following steps:

[0058] S21. Add 30 parts of wood activated carbon particles and 9 parts of fruit shell activated carbon particles into a grinder and grind for 1 hour, then sieve through a 325-mesh sieve, collect the sieved powder, and obtain the mixed activated carbon powder.

[0059] Example 7

[0060] Follow these steps to prepare your rooting conditioner:

[0061] S31. Add 15 parts of Xinjiang 372110 seaweed essence, 11 parts of Binhai 2022718 mineral potassium humate and 7 parts of Xinjiang fish protein into a blender, stir at 90r / min for 30min and then dry with cold air for 40min to obtain the rooting regulator.

[0062] Example 8

[0063] Follow these steps to prepare your rooting conditioner:

[0064] S31. Add 18 parts of Xinjiang 372110 seaweed essence, 13 parts of Binhai 2022718 mineral potassium humate and 8 parts of Xinjiang fish protein into a blender, stir at 90r / min for 30min and then dry with cold air for 40min to obtain the rooting regulator.

[0065] Example 9

[0066] Follow these steps to prepare your rooting conditioner:

[0067] S31. Add 21 parts of Xinjiang 372110 seaweed essence, 15 parts of Binhai 2022718 mineral potassium humate and 9 parts of Xinjiang fish protein into a blender, stir at 90r / min for 30min and then dry with cold air for 40min to obtain the rooting regulator.

[0068] Example 10

[0069] Prepare the biogel curing agent as follows:

[0070] S41. Take 6 portions of Celexa (β-1,3-glucan) and 9 parts of xanthan gum were added into distilled water at 85° C., and magnetically stirred at a speed of 1000 r / min for 30 minutes, and then kept in a constant temperature water bath at 70° C. for 50 minutes to obtain the biogel curing agent.

[0071] Embodiment 11

[0072] Prepare the biogel curing agent as follows:

[0073] S41. Take 6 portions of Celexa (β-1,3-glucan) and 12 parts of xanthan gum were added into distilled water at 85° C., and magnetically stirred at a speed of 1000 r / min for 30 minutes, and then kept in a constant temperature water bath at 75° C. for 40 minutes to obtain the biogel curing agent.

[0074] Example 12

[0075] Prepare the biogel curing agent as follows:

[0076] S41. Take 6 portions of Celexa (β-1,3-glucan) and 14 parts of xanthan gum were added into distilled water at 85° C., and magnetically stirred at a speed of 1000 r / min for 30 minutes, and then placed in a constant temperature water bath at 80° C. for 30 minutes to obtain the biogel curing agent.

[0077] Embodiment 13

[0078] Prepare the anti-scouring loam ecological revetment matrix according to the following steps:

[0079] S51. 80 parts of water were added to 200 parts of sandy loam having a clay content of 40% and stirred at a speed of 80 r / min for 10 min to obtain moist soil;

[0080] S52. 15 parts of the compound fertilizer prepared in Example 1, 20 parts of wheat straw and 10 parts of wood ash were added to the moist soil, stirred at a speed of 80 r / min for 20 min and fermented at 30 ° C for 48 h to obtain a fermented soil;

[0081] S53. Add 5 parts of artificial zeolite made from fly ash as raw material, 5 parts of biochar made from crayfish shells as raw material, 10 parts of composite activated carbon prepared in Example 4 and 2 parts of rooting regulator prepared in Example 7 to the primary fermentation soil, and stir at a speed of 80 r / min for 30 min to obtain a primary revetment matrix;

[0082] S54. The primary revetment matrix was fermented in a closed greenhouse at 35°C for 24 hours. After the fermentation was completed, 5 parts of the biogel curing agent prepared in Example 10 were immediately added, and stirred at 40°C at a speed of 800 r / min for 5 minutes to obtain the soil ecological revetment matrix.

[0083] Embodiment 14

[0084] Prepare the anti-scouring loam ecological revetment matrix according to the following steps:

[0085] S51. 90 parts of water were added to 250 parts of sandy loam having a clay content of 47% and stirred at a speed of 90 r / min for 10 min to obtain moist soil;

[0086] S52. 25 parts of the compound fertilizer prepared in Example 2, 30 parts of wheat straw and 15 parts of wood ash were added to the moist soil, stirred at a speed of 90 r / min for 20 min and fermented at 35 ° C for 60 h to obtain a fermented soil;

[0087] S53. 10 parts of artificial zeolite made from fly ash, 10 parts of biochar made from egg shells, 20 parts of composite activated carbon prepared in Example 5, and 4 parts of rooting regulator prepared in Example 8 were added to the primary fermentation soil, and stirred at a speed of 90 r / min for 30 min to obtain a primary revetment matrix;

[0088] S54. The primary revetment matrix was fermented in a closed greenhouse at 40°C for 36 hours. After the fermentation was completed, 7 parts of the biogel curing agent prepared in Example 11 were immediately added, and stirred at 45°C at a speed of 900 r / min for 5 minutes to obtain the soil ecological revetment matrix.

[0089] Embodiment 15

[0090] Prepare the anti-scouring loam ecological revetment matrix according to the following steps:

[0091] S51. 100 parts of water were added to 300 parts of sandy loam having a clay content of 50% and stirred at a speed of 100 r / min for 10 min to obtain moist soil;

[0092] S52. 35 parts of the compound fertilizer prepared in Example 3, 40 parts of wheat straw and 20 parts of wood ash were added to the moist soil, stirred at a speed of 100 r / min for 20 min and fermented at 40 ° C for 72 h to obtain a fermented soil;

[0093] S53. 15 parts of artificial zeolite made from fly ash, 15 parts of biochar made from crayfish shells, 30 parts of composite activated carbon prepared in Example 6, and 6 parts of rooting regulator prepared in Example 9 were added to the primary fermentation soil, and stirred at a speed of 100 r / min for 30 min to obtain a primary revetment matrix;

[0094] S54. The primary revetment matrix was fermented in a closed greenhouse at 45°C for 48 hours. After the fermentation was completed, 9 parts of the biogel curing agent prepared in Example 12 were immediately added, and stirred at 50°C at a speed of 1000 r / min for 5 minutes to obtain the soil ecological revetment matrix.

[0095] Comparative Example 1

[0096] The steps for preparing the revetment matrix in this comparative example refer to Example 13; wherein, the difference between Comparative Example 1 and Example 13 is only that:

[0097] In S54, no biogel curing agent is used.

[0098] Comparative Example 2

[0099] The steps for preparing the revetment matrix in this comparative example refer to Example 13; wherein, the difference between Comparative Example 2 and Example 13 is only that:

[0100] In S54, the biogel solidifying material is replaced with cement.

[0101] Experimental Example 1 Anti-scouring effect of different substrates

[0102] In the pilot laboratory, a slope with a slope of H / L 1.7:2 was set to simulate the river bank slope, and the slope was divided into 6 areas with the same conditions and no interference. Examples 13 to 15, Comparative Examples 1 to 2 and ordinary soil were applied to the 6 areas respectively with a thickness of 10 cm. After standing for 24 hours, a rainfall of 100 mm / h was simulated and evenly spread on the slope. After 6 hours, the weight of the lost sediment was detected as the soil loss. The test results are shown in Table 1.

[0103] Table 1 Anti-scouring effect of different substrates:

[0104] Grouping Soil loss (kg / hectare) Embodiment 13 10.2 Embodiment 14 9.1 Embodiment 15 7.5 Comparative Example 1 2481.2 Comparative Example 2 0.3 Ordinary soil 6515.8

[0105] It can be seen from Table 1 that the loam ecological bank protection matrix provided in the present application can effectively resist the scouring of extremely heavy rainstorms. Under the extreme environment of 100 mm / h precipitation, the soil loss is 7.5 to 10.2 kg / hectare. Among them, Example 15 has the best anti-scouring effect. Subsequent experiments are carried out with the loam ecological bank protection matrix prepared in Example 15.

[0106] Experimental Example 2 Water treatment effects of different substrates

[0107] River water and riverbank soil were collected from a secondary river in a city in Sichuan and experiments were carried out in a river simulation device. The reactor size was 5m×1m×0.5m and the material of the reactor was transparent tempered glass. The depth of the simulated water body was 30cm. A rectangular net bag with a size of 4m×0.1m×0.3m was set on the side wall of the reactor. The pore size of the net bag was about 50μm, and the part of the net bag immersed in the water was 10cm. A 20cm baffle was set at the simulated downstream position of the reactor to prevent the repair material from being washed away. The reactor was equipped with a water circulation system, a water motion simulation system, an energy dissipation plate, and a laminar drainage pipe to simulate the real situation of the river. At the same time, an aeration device was used to continuously aerate the river water. A sampling port was set at the simulated downstream position of the reactor. Six rectangular net bags of the river simulation device were filled with the bank protection matrix prepared in Example 15, Comparative Examples 1 to 2, and ordinary soil. Water samples were taken at 0 h, 12 h, 24 h, 36 h, and 48 h, and the total organic carbon (TOC), total phosphorus (TP), and total nitrogen (TN) contents in the water samples were tested. The test results are shown in Table 2.

[0108] Table 2 Water treatment effects of different matrices:

[0109]

[0110]

[0111] It can be seen from Table 2 that the loam ecological bank protection matrix provided in this application can produce a significant repair effect on riverbank water bodies, and the repair process is very rapid.

[0112] Experimental Example 3 Effect of different matrices on the removal of heavy metals

[0113] Prepare Cu with an initial concentration of 50 mg / L 2+ 、Zn 2+ and Cd 2+50 mL of heavy metal ion solution was placed in a conical flask, the pH was adjusted to 6.0, and 1 g of the bank protection matrix prepared in Example 15, Comparative Examples 1 to 2, and ordinary soil were added respectively. The solution was placed on an oscillator and oscillated at 120 rpm at room temperature for 48 h, then taken out and allowed to stand. The upper transparent solution was taken and the residual heavy metal ion concentration in the sample was determined by FAAS, and the removal rate was calculated and statistically analyzed. The results are shown in Table 3.

[0114] Removal rate (%) = (C 0- C e ) / C0×100%

[0115] Wherein, C0-initial concentration of heavy metal ion solution (mg / L);

[0116] C e -Residual heavy metal ion concentration in the sample.

[0117] Table 3 Removal effect of different matrices on heavy metals

[0118]

[0119] It can be seen from Table 3 that the loam ecological bank protection matrix provided in the present application can have a significant removal effect on heavy metal ions.

[0120] Experimental Example 4 Effect of river bank slope protection with different substrates

[0121] S61. In March, a secondary river channel in a prefecture-level city in Sichuan was selected, and the larger rocks on the river bank slope were removed and plowed until the surface was flat. The plowed river bank slope was divided into 18 restoration areas, and numbered according to 3 restoration areas as a group;

[0122] S62. The gabion boxes are evenly laid in the repair area in a slope shape, and the height of the gabion boxes buried in the soil is the same. The height of the exposed part of the gabion boxes in the repair groups No. 1, No. 4, No. 5 and No. 6 is 20 cm, the height of the exposed part of the gabion boxes in the repair group No. 2 is 30 cm, and the height of the exposed part of the gabion boxes in the repair group No. 3 is 40 cm;

[0123] S63. The loam ecological revetment matrix prepared in Example 15 was applied to the land surface of the No. 1 to No. 3 restoration groups to form a matrix layer with a thickness of 30 cm, 40 cm and 50 cm, respectively. The revetment matrix prepared in Comparative Examples 1 and 2 and ordinary soil were applied to the land surface of the No. 4 to No. 6 restoration groups with a thickness of 30 cm, respectively. After leveling each restoration group, the seeds of Bermuda grass, Amorpha fruticosa and white clover were added at a rate of 30 g / m 2 The seeding amount was evenly sown on the substrate surface of each repair group;

[0124] S64. Each restoration group was subjected to routine management for one year. The plant coverage, porosity, erosion resistance, and organic matter content of the soil in each restoration area were tested and recorded on the 1st, 90th, 180th, 270th, and 360th days of routine management. The results are shown in Table 4.

[0125] Table 4: Basic properties and animal habitats of each restoration area

[0126]

[0127] Test reference standards:

[0128] The vegetation coverage rate was calculated by the sampling needle method, which was the percentage of the vertical projection area of ​​the aboveground part of the plant community as a whole or an individual to the sample area;

[0129] The porosity was determined by the density test method according to the Geotechnical Test Method Standard (GB / T50123-1999);

[0130] Organic matter was determined by potassium dichromate volumetric method (dilution heat method) according to the Dictionary of Soil Science: Science Press, 2013.10.

[0131] In summary, the loam ecological bank protection matrix provided by the present application has excellent anti-scouring ability, and also has a significant adsorption effect on organic pollutants, inorganic pollutants and heavy metal pollutants. The use of the loam ecological bank protection matrix provided by the present application can effectively protect the river bank with loam-like materials to achieve a safe and beautiful effect. Even in the flood season, river bank landslides will not occur. The river bank soil and river water body can also be repaired. At the same time, it will not affect the reproduction of aquatic animals and can promote the growth of river bank plants. It is a material with great application value.

[0132] The above is only a preferred embodiment of the present application. It should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge in the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present application, and shall be within the scope of protection of the claims attached to the present application.

Claims

1. The anti-scouring loam ecological bank protection matrix is ​​characterized by: In parts by weight: Wherein, the artificial zeolite includes artificial zeolite made from fly ash as raw material; And / or, the biochar includes biochar made from animal crustaceans.

2. The loam ecological bank protection matrix according to claim 1 is characterized in that: The compound fertilizer includes compound bacterial powder, controlled-release compound fertilizer and compost fertilizer; And / or, the composite activated carbon includes wood activated carbon powder and fruit shell activated carbon powder; And / or, the plant fiber includes crop straw; And / or, the rooting regulator includes seaweed essence, mineral potassium humate and fish protein; And / or, the soil comprises sandy loam with a clay content of 45% to 50%.

3. The loam ecological bank protection matrix according to claim 2 is characterized in that: The weight ratio of the composite bacterial powder, the controlled-release compound fertilizer and the compost fertilizer is (2-4):(10-16):(5-7); And / or, the weight ratio of the wood activated carbon powder to the fruit shell activated carbon powder is (20-30):(5-9); And / or, the weight ratio of the seaweed essence, the mineral potassium humate and the fish protein is (15-21):(11-15):(7-9).

4. The loam ecological bank protection matrix according to claim 1 is characterized in that: The method for preparing the biogel curing agent comprises: Adding water-soluble β-glucan and xanthan gum to distilled water at 85° C., performing a first stirring and a constant temperature water bath, thereby obtaining the biogel curing agent; Wherein, the weight ratio of the water-soluble β-glucan to the xanthan gum is 6:(9-14).

5. The loam ecological bank protection matrix according to claim 4 is characterized in that: The first stirring method includes magnetic stirring, the speed of the magnetic stirring is 1000 r / min, and the time of the magnetic stirring is 30 min; And / or, the temperature of the constant temperature water bath is 70-80° C., and the time of the constant temperature water bath is 30-50 min.

6. A method for preparing the loam ecological bank protection matrix according to any one of claims 1 to 5, characterized in that: The following steps are involved: adding the water to the soil and performing a second stirring to obtain moist soil; Adding the compound fertilizer, the plant fiber and the wood ash to the moist soil, stirring for a third time and then performing a primary fermentation to obtain a primary fermented soil; adding the artificial zeolite, the biochar, the composite activated carbon and the rooting regulator to the primary fermented soil, and performing a fourth stirring to obtain a primary bank protection matrix; and The primary bank protection matrix is ​​subjected to secondary fermentation in a closed greenhouse, and the biogel curing agent is immediately added after the fermentation is completed, and the matrix is ​​cooled after the fifth stirring to obtain the soil ecological bank protection matrix.

7. The method according to claim 6, characterized in that The speeds of the second stirring, the third stirring and the fourth stirring are 80-100 r / min; And / or, the temperature of the primary fermentation is 30-40° C., and the time of the primary fermentation is 48-72 hours; And / or, the temperature of the secondary fermentation is 35-45°C, and the time of the secondary fermentation is 24-48h; And / or, the speed of the fifth stirring is 800-1000 r / min, and the temperature of the fifth stirring is 40-50°C.

8. Application of the soil ecological bank protection matrix according to any one of claims 1 to 5 or the method according to claims 6 to 7 in river ecological bank protection, characterized in that: The following steps are involved: The riverbank slopes are tilled until the surface is roughly level; The gabion boxes are laid in a slope shape on the plowed river bank slope, the height of the gabion boxes buried in the soil is the same, and the height of the exposed parts of the gabion boxes is 20 to 40 cm; and The loam ecological bank protection matrix is ​​applied to the river bank slope to form a matrix layer, and the seeds of the slope protection plants are sown after the matrix layer is leveled.

9. The use according to claim 8, characterized in that: The thickness of the matrix layer is 30 to 50 cm.

10. The use according to claim 8, characterized in that: The slope protection plants include Bermuda grass, Amorpha fruticosa and white clover.

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