An adaptive water supply system for irrigation-free tree planting

Abstract

An adaptive water supply system for non-irrigated tree planting includes: a water storage container having independent water storage chambers and planting chambers connected at both ends; and an adaptive water supply microporous ceramic water-conducting structure communicating with the water storage chambers. Based on the soil moisture content, the adaptive water supply microporous ceramic water-conducting structure guides an appropriate amount of water from the water storage chambers to the external planting soil, providing suitable water for tree growth, conserving water in the storage chambers, promoting root growth, and improving tree survival rate.

Description

Technical Field

[0001] This application relates to the field of tree planting technology, and in particular to an irrigation-free tree planting device with adaptive water supply, specifically a tree planting device with a ceramic water intake structure. Background Technology

[0002] In the process of environmental greening, arid and semi-arid desert areas face significant challenges due to insufficient water, making plant survival extremely difficult. In wind-prone or desert regions, the limited surface material layer reduces wind resistance, allowing wind to easily exert shear and impact forces, separating fine soil particles from larger clumps or soil masses, and even stripping debris from rock surfaces, creating scratches and honeycomb-like structures. Subsequently, soil or sand particles are carried by the wind, forming sandstorms. As wind speed decreases, these particles settle, forming numerous sand dunes. The wind creates shifting desert or soil areas on slopes, easily covering or moving plants. These unstable desert or soil areas are easily uprooted, covered, or moved, posing significant difficulties for windbreak, sand fixation, and water conservation efforts in these shifting desert or soil areas.

[0003] Currently, planting devices are used in arid regions to address the challenges of planting in deserts or areas with harsh climates. However, for different vegetation types, timely and adequate water supply is a crucial factor in improving survival rates and growth rates. Therefore, the performance of planting devices needs further improvement to provide the necessary moisture environment for plant root growth. Summary of the Invention

[0004] The primary objective of this application is to provide an adaptive microporous ceramic water-conducting structure that automatically adjusts the water-conducting volume according to changes in the surrounding soil environment.

[0005] The second objective of this application is a tree-planting device for arid regions. Trees planted using this device do not require regular irrigation. By utilizing a ceramic water-guiding structure installed on the device, water in the water storage chamber is guided and infiltrated into the external planting soil. The water infiltration capacity is stable, and the water replenishment effect is effective over a long period of time. The amount of water infiltrated can be adjusted according to the pressure inside and outside the water storage chamber, providing an appropriate amount of water for tree growth, saving water in the water storage chamber, promoting root growth, and improving the survival rate of the trees.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: providing an adaptive water supply microporous ceramic water-conducting structure, wherein the ceramic water-conducting structure has an opening porosity of 20% to 60% and a pore size of 1 to 100 μm.

[0007] In some embodiments, the ceramic water-conducting structure has an open porosity of 37.5% to 44.43% and a pore size of 1 to 100 μm.

[0008] In some implementations, the pore size of the ceramic water-conducting structure is mainly distributed between 1 and 10 μm.

[0009] In some embodiments, the pore size distribution of the ceramic water-conducting structure has a most probable pore size of about 7-8 μm.

[0010] Specifically, with the ceramic water-conducting structure maintained at a pore size of 1-10 μm and a porosity of 37.5%-44.43%, water can be smoothly introduced into the soil at a working pressure of 10-20 cm.

[0011] Soil is a mixture of solid, liquid, and gas phases. During the process of water flowing into the soil through the ceramic water-conducting structure, the moisture content in the soil pores gradually increases, leading to an increase in soil moisture content. Meanwhile, air in the soil is driven out due to the influx of moisture, and the expulsion of air requires a certain amount of energy, thus indirectly inhibiting water outflow. This is particularly true in the initial stage of water infiltration, where soil water movement is generally weakened. In the ceramic water-conducting structure of this application, within a working pressure range of 10–20 cm, gas in the soil can be expelled in a short time, allowing for a smoother and more stable water flow.

[0012] The ceramic water-conducting structure has a pore size of 1-10μm and a porosity of 37.5%-44.43%, and the flow rate is controlled at 5-30ml / h when the working pressure is in the range of 10-20cm.

[0013] In some embodiments, the flexural strength of the microporous ceramic water-conducting structure ranges from 5 to 16 MPa.

[0014] Preferably, the flexural strength of the microporous ceramic water-conducting structure is in the range of 10 to 14 MPa.

[0015] In some implementations, the microporous ceramic water-conducting structure contains Cu.

[0016] In the raw materials used to prepare microporous ceramic water-conducting structures, the Cu element content is 1-10 wt%. Including an appropriate amount of Cu in the microporous ceramic water-conducting structure ensures that the porosity of the ceramic water-conducting structure remains essentially unchanged during long-term use. The pores are less prone to clogging, thus reducing the impact on water output efficiency.

[0017] Preferably, the Cu element content in the raw materials for preparing the microporous ceramic water-conducting structure is 4-6 wt%.

[0018] On the other hand, the preparation method of the above-mentioned ceramic water-conducting structure includes:

[0019] 1) Mix and grind the raw materials kaolin, alumina, silica sol, titanium dioxide, and pore-forming agent; place the resulting mixture into a mold, press it into shape, and make a blank;

[0020] 2) After sintering the green body, a ceramic water-conducting structure is obtained.

[0021] The amounts of various substances in the raw materials are as follows:

[0022] 10-60 parts by weight of kaolin

[0023] 5-35 parts by weight of alumina

[0024] 10-30 parts by weight of silica sol

[0025] 2-10 parts by weight of titanium dioxide

[0026] 10-25 parts by weight of pore-forming agent.

[0027] In some embodiments, the amounts of various substances in the raw materials are as follows:

[0028] 30-50 parts by weight of kaolin

[0029] 9-15 parts by weight of aluminum oxide

[0030] 15-25 parts by weight of silica sol

[0031] 3-6 parts by weight of titanium dioxide

[0032] 15-20 parts by weight of pore-forming agent.

[0033] With the above-mentioned raw material ratios of this application, the firing temperature is low during the preparation of ceramic materials. However, the porosity and pore size of the prepared ceramic materials reach the desired values, namely, open porosity of 37.5% to 44.43% and pore size of 1 to 100 μm.

[0034] In some embodiments, the raw materials further include copper powder.

[0035] Preferably, the Cu element content is 1-10 wt%;

[0036] More preferably, the Cu content is 4-6 wt%.

[0037] The addition of copper powder improves the water-conducting performance of the adaptive water supply microporous ceramic, ensuring that the porosity of the ceramic's water-conducting structure remains essentially unchanged during long-term use. This prevents the pores from becoming clogged, thus reducing the impact on water output efficiency. Furthermore, the interaction between copper powder and other raw materials results in low linear shrinkage in the prepared adaptive water supply microporous ceramic, thereby improving its mechanical properties and extending its service life.

[0038] The pore-forming agent includes dextrin.

[0039] Sintering is carried out in two steps.

[0040] Generally, higher temperatures result in larger pore diameters in microporous ceramics. During high-temperature sintering, kaolin and alumina bond tightly together to form the skeleton of the microporous ceramic water dispenser. After sintering, the microporous ceramic water dispenser may experience linear shrinkage during temperature reduction. This shrinkage generates significant local stress, causing irregular cracks and potentially leading to cracking, which affects the porosity or pore size control of the microporous ceramic. Furthermore, it also impacts the mechanical properties of the microporous ceramic. The preferred raw material formulation of this application effectively reduces the shrinkage rate during the cooling process after sintering. Furthermore, combining this with the following two-step sintering process allows for better control of the porosity, strength, and microstructure of the microporous ceramic.

[0041] In some embodiments, the sintering process includes: a first stage: the calcination temperature is controlled at 700-850℃; and a second stage: the calcination temperature is controlled at 1100-1300℃.

[0042] In some embodiments, the sintering process includes: a first stage: heating from room temperature to 800-850°C and holding at that temperature for 20-40 minutes; and a second stage: heating from 800-850°C to 1150-1250°C and holding at that temperature for 3-5 hours.

[0043] Then, let it cool down naturally.

[0044] Preferably, in the first stage, the heating rate is controlled at 2.0-5.0℃ / min. More preferably, in the first stage, the heating rate is controlled at 3.5-4.0℃ / min.

[0045] In the second stage, the heating rate is controlled at 0.5-3.0℃ / min. Preferably, in the second stage, the heating rate is controlled at 0.8-1.2℃ / min.

[0046] More preferably, the temperature is increased from room temperature (20°C) to 800°C and held at 800°C for 30 minutes; then, the temperature is increased from 800°C to 1200°C and held at 1200°C for 200 minutes, followed by a gradual decrease in temperature.

[0047] In the first stage, the room temperature was increased to 800°C at a rate of 3.9°C / min; in the second stage, the temperature was increased from 800°C to 1200°C at a rate of 1°C / min.

[0048] The sintering process described in this application heat-treats the green body composed of the above-mentioned raw materials, effectively controlling the properties of the microporous ceramic, including porosity, pore size, density, and mechanical properties. The pore size distribution is relatively narrow, and the pore size distribution is relatively uniform, allowing for effective control of water yield based on soil properties.

[0049] The powder size of the grinding process in this application is 300-400 mesh.

[0050] When the raw material particle size is within this range, the particles are more tightly connected during sintering, resulting in ceramics with better mechanical properties and good self-watering function.

[0051] The aforementioned microporous ceramic water-conducting structure for adaptive water supply can be applied to irrigation-free devices for adaptive water supply in agriculture, forestry, and other fields. Based on the soil properties, it can self-regulate the guidance of water into the soil, providing favorable growth conditions for plants.

[0052] On another front, an adaptive water supply system for irrigation-free tree planting includes:

[0053] The water storage container has independent water storage chambers and a tree planting chamber that runs through both ends;

[0054] An adaptive water supply microporous ceramic water-conducting structure is provided, wherein the microporous ceramic water-conducting structure is connected to the water storage cavity.

[0055] The microporous ceramic water-conducting structure allows water from the storage chamber to be introduced into the soil, ensuring the soil moisture content is suitable for plant growth. The ceramic component can adjust the water output based on the pressure difference between the inside and outside of the storage chamber.

[0056] The microporous ceramic water-conducting structure for adaptive water supply can be connected to the water storage chamber in multiple ways to draw water out of the water storage chamber.

[0057] For example, the water storage chamber has irrigation holes on its wall, one end of the conduit is connected to the irrigation holes, and the other end of the conduit is connected to a microporous ceramic water-conducting structure that adapts to water supply.

[0058] Water in the water storage chamber flows into the pipe through the irrigation hole, and then permeates into the soil through the microporous ceramic water-conducting structure.

[0059] Trees planted using an adaptive water supply system eliminate the need for regular irrigation. The ceramic water-conducting structure automatically adjusts the amount of water channeled into the soil based on soil moisture levels, achieving an adaptive water supply function. For example, when the soil moisture content is relatively low, the ceramic water-conducting structure can guide more water into the soil; conversely, it can reduce the amount of water channeled into the soil, thus maintaining a relatively stable soil moisture content and providing appropriate water for tree growth. This conserves water in the storage chamber, promotes root growth, and improves the survival rate of the trees. Attached Figure Description

[0060] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0061] Figure 1 This is a scanning electron microscope image of the ceramic of Embodiment 1 of the present invention;

[0062] Figure 2 This is a scanning electron microscope image of the ceramic of Embodiment 2 of the present invention;

[0063] Figure 3 This is a scanning electron microscope image of the ceramic of Embodiment 3 of the present invention;

[0064] Figure 4 This is a particle size distribution diagram of the ceramic of Example 1 of the present invention;

[0065] Figure 5 This is a front view of one embodiment of the tree planting device of the present invention;

[0066] Figure 6 This is a bottom view of one embodiment of the tree planting device of the present invention;

[0067] Figure 7 This is a graph showing the change in leaf water content in an experimental example of the present invention.

[0068] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0069] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0070] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0071] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0072] In the following embodiments, the porosity and density of the ceramic material were determined using Archimedes' displacement method; the linear shrinkage was measured using a micrometer; and the pore size was detected using mercury intrusion porosimetry. These are all methods conventionally used in the art.

[0073] Example 1

[0074] 1) Mix the raw materials kaolin, alumina, titanium dioxide, copper powder, and dextrin, and then add silica sol to mix to obtain a mixture. The raw materials contain 43 wt% kaolin, 11 wt% alumina, 19 wt% silica sol, 3 wt% titanium dioxide, 5 wt% copper powder, and 19 wt% dextrin. Place the mixture in a variable frequency planetary ball mill and grind it at 200 r / min for 10 hours to obtain powder.

[0075] 2) Place the powder from step 1) into the mold in layers. After filling, press it into a wet blank under a pressure of 12MPa. Place the wet blank to dry to obtain a blank with a moisture content of 4%.

[0076] 3) Place the green body in the furnace for sintering, heat it from room temperature to 800℃, and hold it at 800℃ for 30 minutes; then heat it from 800℃ to 1200℃, hold it at 1200℃ for 200 minutes, and then gradually cool it down to room temperature to obtain a ceramic water-conducting structure.

[0077] The obtained ceramic water-conducting structure was analyzed by scanning electron microscopy, as shown in the attached figure. Figure 1 The pore size distribution is relatively uniform. Furthermore, further testing of the pore size revealed... Figure 4 .

[0078] Example 2

[0079] 1) Mix the raw materials kaolin, alumina, titanium dioxide, copper powder, and dextrin, and then add silica sol to mix to obtain a mixture. In the raw materials, kaolin accounts for 46 wt%, alumina accounts for 11 wt%, silica sol accounts for 20 wt%, titanium dioxide accounts for 3 wt%, copper powder accounts for 6 wt%, and dextrin accounts for 14 wt%. Place the mixture in a variable frequency planetary ball mill and grind it at 200 r / min for 10 hours to obtain powder.

[0080] 2) Place the powder from step 1) into the mold in layers. After filling, press it into a wet blank under a pressure of 12MPa. Place the wet blank to dry to obtain a blank with a moisture content of 4%.

[0081] 3) Place the green body in the furnace for sintering, heat it from room temperature to 800℃, and hold it at 800℃ for 30 minutes; then heat it from 800℃ to 1200℃, hold it at 1200℃ for 200 minutes, and then gradually cool it down to room temperature to obtain a ceramic water-conducting structure.

[0082] The obtained ceramic water-conducting structure was analyzed by scanning electron microscopy, as shown in the attached figure. Figure 2 The pore size distribution is relatively uniform.

[0083] Example 3

[0084] 1) Mix the raw materials kaolin, alumina, titanium dioxide, copper powder, and dextrin, and then add silica sol to mix to obtain a mixture. The raw materials contain 48 wt% kaolin, 12 wt% alumina, 21 wt% silica sol, 3 wt% titanium dioxide, 6 wt% copper powder, and 10 wt% dextrin. Place the mixture in a variable frequency planetary ball mill and grind it at 200 r / min for 10 hours to obtain powder.

[0085] 2) Place the powder from step 1) into the mold in layers. After filling, press it into a wet blank under a pressure of 12MPa. Place the wet blank to dry to obtain a blank with a moisture content of 4%.

[0086] 3) Place the green body in the furnace for sintering, heat it from room temperature to 800℃, and hold it at 800℃ for 30 minutes; then heat it from 800℃ to 1200℃, hold it at 1200℃ for 200 minutes, and then gradually cool it down to room temperature to obtain a ceramic water-conducting structure.

[0087] The obtained ceramic water-conducting structure was analyzed by scanning electron microscopy, as shown in the attached figure. Figure 3 The pore size distribution is relatively uniform.

[0088] The properties and mechanical characteristics of the ceramic water-conducting structures in Examples 1-3 were tested, and the specific results are shown in Table 1. Table 1

[0089]

[0090] Comparative Example 1

[0091] 1) Mix the raw materials kaolin, alumina, titanium dioxide and dextrin, and then add silica sol to mix to obtain a mixture. The raw materials contain 48 wt% kaolin, 12 wt% alumina, 22 wt% silica sol, 3 wt% titanium dioxide and 15 wt% dextrin. Place the mixture in a variable frequency planetary ball mill and grind it at 200 r / min for 10 hours to obtain powder.

[0092] 2) Place the powder from step 1) into the mold in layers. After filling, press it into a wet blank under a pressure of 12MPa. Place the wet blank to dry to obtain a blank with a moisture content of 4%.

[0093] 3) Place the green body in the furnace for sintering, heat it from room temperature to 800℃, and hold it at 800℃ for 30 minutes; then heat it from 800℃ to 1200℃, hold it at 1200℃ for 200 minutes, and then gradually cool it down to room temperature to obtain a ceramic water-conducting structure.

[0094] The obtained ceramic water-conducting structural properties are shown in Table 2:

[0095]

[0096] Example 4

[0097] The ceramic water-conducting structure in Examples 1-3 is used in the tree planting device.

[0098] like Figures 5 to 6 As shown, the tree planting device of the present invention is mainly used for planting trees in water-scarce areas without irrigation. The tree planting device includes a water storage container and a ceramic water guiding structure.

[0099] The water storage container has independent water storage chambers 1 and planting chambers 2 that are connected at both ends. Irrigation holes are provided at the bottom 22 of each water storage chamber, or irrigation holes can be provided on the side walls of the water storage chamber. Multiple irrigation holes can be provided. One end of a water guide pipe 3 is installed on the irrigation hole, and water from the water storage chamber flows out through the water guide pipe. A ceramic water guide structure 4 is installed at the other end of the water guide pipe.

[0100] Alternatively, the ceramic water-guiding structure is located at the irrigation hole to guide the water in the water storage cavity to permeate to the outside of the water storage cavity.

[0101] Experimental Example 1

[0102] The planting device with a ceramic water-guiding structure (referred to as the ceramic water irrigator) from Example 4 was used for planting Chinese arborvitae. Comparative experiments were conducted with planting devices using ordinary cotton thread instead of the ceramic water-guiding structure (referred to as ordinary cotton thread), a rainwater collection tray, a water storage chamber without a planting device (referred to as a rainwater collection shell only), and bare soil without any auxiliary planting equipment. Rainfall during the experiment simulated rainfall in Wuhai City, Inner Mongolia from August to October 2015, with a total rainfall of 85.8 mm. The maximum daily rainfall during the simulation period was 31.0 mm, and the average daily rainfall was 0.93 mm.

[0103] 1.1 Plant growth performance

[0104] Under the experimental conditions, the soil moisture content (%) in the top 5cm layer was controlled at 8.0-21%; the soil moisture content (%) in the top 25cm layer was controlled at 18.0-27%; and the soil moisture content (%) in the top 50cm layer was controlled at 17.0-28%. The average air temperature was 19-38℃, and the average relative humidity (%) was 45-99%. The changes in water level in the water storage chamber of the planting device and the growth of the cypress seedlings were monitored at 0, 10, 20, 30, 70, and 90 days, as shown in Table 2 below.

[0105] Table 3

[0106]

[0107] As can be seen from the table above, when planting Chinese arborvitae using the ceramic planting device described in this application, the growth rate of the arborvitae is more stable over time, and the overall growth performance is better than that treated with cotton thread and bare soil. It can effectively control the water content required by the roots, resulting in a higher tree growth rate.

[0108] 2.2 Leaf moisture content

[0109] Leaf water content is an important indicator of the vigor and health of forest trees. Under drought conditions, insufficient water supply to plants leads to a gradual decrease in leaf water content, eventually resulting in death. This experiment measured leaf water content by collecting leaves at 15, 30, 45, and 60 days after planting. Leaves were randomly collected from each seedling, with three collections per tree. The leaves were quickly brought back indoors and weighed, recorded as Mfresh. Subsequent leaves were placed in an aluminum box and dried in a 105℃ oven until constant weight, weighed, and recorded as Mdry. Finally, leaf water content = (Mfresh) / (Mdry) = Mfresh / Mdry. 鲜 -M 干 ) / M 鲜 ×100%.

[0110] The functional traits of plant leaves are closely related to important life activities such as carbon acquisition, water transfer, and nutrient cycling. By measuring the changes in leaf water content during the experiment, the growth and health status of Platycladus orientalis can be indirectly reflected. Figure 7The graph shows the changes in leaf moisture content under different treatments during the experiment. As can be seen from the graph, the leaf moisture content of the ceramic waterer treatment was consistently higher than that of the other treatment groups. At day 15, the leaf moisture content of all treatments was low, with the ceramic waterer, cotton thread, and bare soil treatments at 58.09%, 55.13%, and 56.02%, respectively. This is because the seedlings were newly planted and transplanted from their pots to the experimental area, and were in a recovery phase, resulting in lower leaf moisture content. Subsequently, at day 45 after planting, except for the ceramic waterer treatment, the leaf moisture content of the other treatment groups decreased to varying degrees. The ceramic treatment had the highest leaf moisture content at 65.05%, the cotton thread treatment at 60.31%, and the bare soil treatment the lowest at only 56.99%. At day 75 after planting, the leaf moisture content of each treatment group reached its maximum, with the ceramic waterer treatment, cotton thread treatment, and bare soil treatment at 66.90%, 62.73%, and 58.4%, respectively. The above results indicate that ceramic treatment can maintain the volumetric moisture content of the root zone soil within a certain range for a long period. This stable moisture condition is beneficial to the growth of *Platycladus orientalis*, and the root system's water absorption and the plant's overall growth directly reflect the leaf moisture content, thus maintaining a high leaf moisture content for an extended period. While cotton thread treatment can provide ample water for seedling growth in the early stages of planting, the limited volume of the water tank means it cannot continuously provide sufficient water. Once the cotton thread has drained a significant amount of water, it can no longer maintain the high soil moisture content of the root zone at the initial planting stage, leading to depletion of water in the tank. Consequently, after 45 days, the leaf moisture content of the cotton thread treatment is significantly lower than that of the ceramic treatment. The bare soil treatment, lacking any water source other than rainfall, resulted in leaf moisture content that was lower than both the ceramic and cotton thread treatments for most of the time.

[0111] Analysis of the leaf moisture content variation patterns under the three treatment conditions revealed that ceramic treatment can maintain the leaf moisture content at a high level for a long time, effectively ensuring the healthy growth of Platycladus orientalis.

[0112] 1.3 Soil moisture content

[0113] Both the ceramic irrigation device treatment and the cotton thread treatment are equipped with water storage chambers for planting trees, allowing rainfall to be stored and replenished with soil moisture. However, the cotton thread treatment has a larger outflow rate, causing the initial soil moisture content to exceed field capacity. Furthermore, the water expelled by the cotton thread is not effectively absorbed by the 25cm soil layer of the arborvitae root system; instead, it is directly conducted to the 50cm soil layer, resulting in significant deep seepage. Consequently, the soil moisture content at the 25cm and 50cm layers is relatively similar in the cotton thread treatment. Conversely, the ceramic irrigation device, using a ceramic irrigation unit, has a much lower outflow rate than the cotton thread. Therefore, the maximum soil moisture content occurs at the 25cm soil layer, and there is no severe deep seepage, resulting in a much lower soil moisture content at the 50cm soil layer compared to the 25cm layer. This maintains a long-term stable soil moisture content in the arborvitae root system's main zone (25cm), which is beneficial for plant growth.

[0114] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A method for preparing an adaptive water supply microporous ceramic water-conducting structure, comprising: 1) mixing and grinding raw materials kaolin, alumina, silica sol, titanium dioxide, and a pore-forming agent; placing the resulting mixture into a mold, molding it to form a green body; The amounts of various substances in the raw materials are as follows: 10-60 parts by weight of kaolin 5-35 parts by weight of alumina 10-30 parts by weight of silica sol 2-10 parts by weight of titanium dioxide 10-25 parts by weight of pore-forming agent 1-15 parts by weight of copper powder; 2) After sintering the green body, a ceramic water-conducting structure is obtained; the sintering process includes: the first stage: heating from room temperature to 750-850℃ and holding at this temperature for 20-40 minutes; the second stage: heating from 750-850℃ to 1150-1250℃ and holding at this temperature for 3-5 hours. Among them, the ceramic water-conducting structure has an open porosity of 20% to 60% and a pore size of 1 to 100 μm.

2. The preparation method according to claim 1, characterized in that, The ceramic water-conducting structure has an open porosity of 37.5%~44.43% and a pore size of 1~100 μm.

3. The preparation method according to claim 1, characterized in that, The pore size of the ceramic water-conducting structure is mainly distributed between 1 and 10 μm.

4. The preparation method according to claim 1, characterized in that, In the pore size distribution of the ceramic water-conducting structure, the most probable pore size is 7-8 μm.

5. The preparation method according to any one of claims 1-4, characterized in that, The flexural strength of the microporous ceramic water-conducting structure ranges from 5 to 16 MPa.

6. The preparation method according to any one of claims 1-4, characterized in that, The flexural strength of the microporous ceramic water-conducting structure ranges from 10 to 14 MPa.

7. The preparation method according to any one of claims 1-3, characterized in that, In the raw materials for preparing microporous ceramic water-conducting structures, the content of Cu element is 4-6 wt%.

8. The preparation method according to claim 1, characterized in that, The amounts of various substances in the raw materials are as follows: 30-50 parts by weight of kaolin 9-15 parts by weight of aluminum oxide 15-25 parts by weight of silica sol 3-6 parts by weight of titanium dioxide 15-20 parts by weight of pore-forming agent.

9. The preparation method according to claim 1 or 8, characterized in that, The amount of copper powder used in the raw materials is 5-10 parts by weight.

10. The preparation method according to claim 1, characterized in that, In the first stage, the heating rate is controlled at 2.0-5.0℃ / min; in the second stage, the heating rate is controlled at 0.5-3.0℃ / min.

11. The preparation method according to claim 1, characterized in that, In the first stage, the heating rate is controlled at 3.5-4.0℃ / min; in the second stage, the heating rate is controlled at 0.8-1.2℃ / min.

12. An adaptive water supply system for non-irrigated tree planting, comprising: The water storage container has independent water storage chambers and a tree planting chamber that runs through both ends; The microporous ceramic water-conducting structure for adaptive water supply obtained by the preparation method according to any one of claims 1-4, wherein the microporous ceramic water-conducting structure is in communication with the water storage cavity.

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