A soil water retention device for tree roots in forest seedling cultivation

Abstract

This invention discloses a soil water retention device for the root system of forest tree seedlings, specifically relating to the field of forest tree seedling technology. It includes a silicone trough pad, a seedling container, multiple fixing blocks, and a seedling water retention component. The seedling water retention component comprises a support plate, a long water-absorbing spiral gel strip, an inclined block, an inclined support plate, a short inclined water-absorbing spiral gel strip, a base block, cotton thread, multiple spaced inclined blocks, and spaced water-absorbing spiral gel strips. This invention utilizes a seedling water retention component that allows for multi-dimensional water absorption by forest tree seedlings in humid environments and multi-directional water release in dry environments. It provides a wide release contact area, meeting the multi-dimensional water retention needs of the root system, maintaining the root moisture environment in different directions, and improving the quality of forest tree seedlings. This solves the problem of difficulty in meeting the multi-directional water retention needs of the root system, leading to poor water retention in forest tree seedlings and hindering the effective maintenance of the required root moisture environment, thus affecting the quality of forest tree seedlings.

Description

Technical Field

[0001] This invention relates to the field of forest tree seedling technology, and more specifically, to a soil water retention device for the root system of forest tree seedlings. Background Technology

[0002] Tree root soil water retention devices play a vital role in forestry seedling cultivation. Their core function is to improve soil moisture conditions, promote root development in tree seedlings, and enhance seedling survival rate and growth quality. The main principle is that the device absorbs and stores a certain amount of water during rain, while the absorbent material slowly releases water during drought, ensuring continuous root absorption.

[0003] Among the existing published documents, patent publication number CN113557886A discloses a container seedling device and seedling method for yellow trumpet tree. This technology forms a closed space by setting a bottom shell, an upper frame and a conical guide tube, which can ensure that the ambient temperature and humidity are relatively constant during seedling cultivation. By setting the conical guide tube, automatic watering component and ventilation component to work together, watering and ventilation are completed simultaneously without the need for external driving force, thus achieving automation and reducing the workload of staff.

[0004] However, the problem of soil water retention for tree roots in forest seedling cultivation is that the root system of seedling trees is widely and complex, with both vertical roots and outward-spreading, inclined roots. This characteristic makes it difficult for traditional water retention methods to achieve close contact and wrapping with the root system in different locations, limiting the water retention contact range. At the same time, the water retention coverage direction is unidirectional, making it difficult to meet the multi-directional water retention needs of the root system. Consequently, the water retention effect of forest seedling cultivation is poor, making it difficult to effectively maintain the water environment required by the root system and affecting the quality of forest seedling cultivation. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, the present invention provides the following technical solution: a soil water retention device for the root system of forest tree seedlings, comprising a silicone trough pad, a seedling container, and multiple fixing blocks, wherein the multiple fixing blocks are fixed to the lower surface of the silicone trough pad, and each fixing block has a seedling water retention component at its bottom end; the seedling water retention component includes a support plate fixedly disposed at the bottom end of the fixing block, a long water-absorbing spiral gel strip fixedly connected to the lower surface of the support plate, an inclined block fixedly connected to the outer wall of the support plate, and an inclined support plate fixedly installed on one inclined surface of the inclined block; a short inclined water-absorbing spiral gel strip fixedly connected to one inclined surface of the inclined support plate, and a bottom block provided on one side of the long water-absorbing spiral gel strip, a cotton thread fixedly connected to the lower surface of the bottom block, multiple spaced inclined blocks fixedly connected to the outer wall of the cotton thread, and a spaced water-absorbing spiral gel strip fixedly connected to one inclined surface of each spaced inclined block.

[0006] Preferably, the length of the long absorbent spiral gel strip is greater than the length of the short inclined absorbent spiral gel strip, and the length of the long absorbent spiral gel strip is greater than the length of the spaced absorbent spiral gel strip. Multiple spaced inclined blocks are arranged sequentially from top to bottom, and an inclined column is fixedly connected to the inner wall of each spaced inclined block. The cotton thread and the spaced absorbent spiral gel strip are both fixedly connected to the inclined column, and the top center point of the spaced absorbent spiral gel strip is higher than the bottom center point of the spaced absorbent spiral gel strip; the support sheet and the inclined support sheet are both fixedly connected to the base block.

[0007] In use, this technology employs a fixed support block to allow long, absorbent spiral gel strips to spirally wrap around and adhere to the vertical branch roots of the sapling. An inclined block supports an inclined support plate, allowing short, inclined absorbent spiral gel strips to spirally wrap around the inclined branch roots of the sapling. A base block supports cotton thread, which in turn supports multiple base blocks. These inclined base blocks support spaced absorbent spiral gel strips, allowing the spaced absorbent spiral gel strips to spirally wrap around and adhere to the inclined branch roots of the sapling at intervals.

[0008] Preferably, a guide cone is fixedly connected to the bottom end of the long absorbent spiral gel strip; a counterweight is fixedly connected to the bottom end of the short inclined absorbent spiral gel strip, and two pillars are fixedly installed on one side of the counterweight, with a guide block fixedly connected to one end of each pillar; a support ring is fixedly connected to the bottom end of each spaced absorbent spiral gel strip, and a guide post is fixedly installed on the inner wall of the support ring, with an inclined cone fixedly connected to the bottom end of the guide post. The guide cone, guide block, and inclined cone are all made of marble, and the top surface area of ​​the guide cone is larger than its bottom surface area. The outer walls of both guide blocks are smooth surfaces, and the weight of the guide cone is less than the weight of the inclined cone; the weight of the guide cone is less than the weight of the guide block.

[0009] In use, the guide block presses down on the support column, causing the bottom of the short, inclined, water-absorbing spiral gel strip to be pressed down. This allows the roots of the inclined branches on the upper part of the seedling to be guided and tilted downwards, ensuring that the roots of these branches are tilted downwards for water absorption. The long, water-absorbing spiral gel strip provides downward weight to the roots of the vertical branches of the seedling. Simultaneously, the inclined cone guide column moves downwards, and the support ring drives the inclined weight of the spaced-apart spiral gel strips to move downwards. These spaced-apart spiral gel strips then provide downward weight to the roots of the inclined branches at the intervals.

[0010] Preferably, a silicone inclined inner pad is fixedly connected to the upper surface of the silicone groove pad; a silicone inclined outer pad is provided outside the silicone inclined inner pad, and the silicone inclined outer pad is fixedly connected to the silicone groove pad. The upper surface of the silicone inclined outer pad forms an outer inclined surface, and the upper surface of the silicone inclined inner pad forms an inner inclined surface. Multiple spacer columns are fixedly connected to the bottom end of the inner wall of the silicone groove pad; a sunshade pad is installed at the top of the spacer column, and multiple spacer columns are fixedly connected to the sunshade pad. A guide surface is provided at the bottom end of the inner wall of the silicone groove pad, and multiple permeation grooves are opened on the inner wall of the guide surface. The multiple permeation grooves are arranged in a circular ring at equal intervals. There is a gap between the sunshade pad and the inner inclined surface, and a gap between the sunshade pad and the outer inclined surface. The vertical cross-sectional shape of the sunshade pad is arc-shaped, and the outer wall of the sunshade pad is a smooth surface. A seedling container is provided below the cotton thread, and multiple through holes with circular cross-sections are opened at the bottom end of the seedling container.

[0011] In use, this technology involves placing a silicone substrate mat inside a seedling container. When it rains, the rainwater is diverted along the outer wall of the shading mat to the inner slope and the outer slope. The water is then guided through the inner and outer slopes to the inner wall of the silicone substrate mat and permeates through multiple infiltration channels to the area beneath the mat. Both short, inclined, water-absorbing spiral gel strips and long, water-absorbing spiral gel strips can achieve high-volume, multi-dimensional water absorption. Multiple spaced water-absorbing spiral gel strips can also be used for high-volume, multi-dimensional water absorption.

[0012] The technical effects and advantages of this invention are as follows:

[0013] 1. This invention employs a seedling water-retaining component. Long, vertically positioned, water-absorbing spiral gel strips are supported by support plates. These strips spirally wrap around and enclose the vertical branches of the seedlings to retain water. Inclined blocks support inclined support plates, causing short, inclined water-absorbing spiral gel strips to tilt. These strips spirally wrap around and enclose the upper inclined branches to retain water. Cotton thread supports multiple base blocks, which in turn support spaced-apart water-absorbing spiral gel strips. These strips spirally wrap around and enclose the spaced-apart branches to retain water. This multi-directional water release mechanism allows for a wide contact area with the seedlings in dry environments, meeting the multi-dimensional water retention needs of the roots, improving water retention, maintaining root moisture in different locations, and enhancing the quality of seedling cultivation.

[0014] 2. This invention uses guide blocks to press down the weight of short, inclined water-absorbing spiral gel strips, helping the roots of the inclined branches on the upper part of the seedlings to tilt downwards and absorb water. Guide cones cause the weight of long, inclined water-absorbing spiral gel strips to hang down, ensuring that the roots of the vertical branches of the seedlings grow downwards to absorb water. Inclined cones cause the weight of the intermittent water-absorbing spiral gel strips to tilt downwards, ensuring that the roots of the inclined branches at the intervals grow downwards to absorb water. This comprehensively assists the seedling roots in maintaining water and growing properly, avoiding shallow roots that are difficult to retain water, meeting the multi-dimensional water retention needs of the roots, and improving the water retention effect.

[0015] 3. In this invention, a silicone groove pad is placed in a seedling container and filled with compacted soil. Rainwater is diverted through the outer wall of the shade pad to the inner and outer inclined surfaces, and then guided to the guiding surface to permeate downwards. The short, inclined water-absorbing spiral gel strips, long water-absorbing spiral gel strips, and multiple spaced water-absorbing spiral gel strips can absorb a large amount of water. At high temperatures, the silicone groove pad supports the spacer columns and the shade pad is staggered to provide shade, slowing down the rate of soil moisture evaporation and retaining water in a staggered manner. Rainwater is collected in large quantities, thus meeting the multi-dimensional water retention needs of the root system and improving the water retention effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the soil water retention device for tree roots in forest seedling cultivation according to the present invention.

[0017] Figure 2 This is a partial structural diagram of the connection between the fixing block and the support plate of the present invention.

[0018] Figure 3 This is a schematic diagram of a partial section of the structure at the connection between the support sheet and the long absorbent spiral gel strip of the present invention.

[0019] Figure 4 This is a schematic diagram of a partial cut-off structure at the connection between the cotton thread and the spacer block in this invention.

[0020] Figure 5 This is a schematic diagram of a partial section of the structure at the connection between the short, inclined, absorbent spiral gel strip and the counterweight block of the present invention.

[0021] Figure 6 This is a schematic diagram of a partial cut-off structure at the connection between the spaced water-absorbing spiral gel strip and the support ring of the present invention.

[0022] Figure 7 This is a top view of a partial structural diagram of the soil water retention device for tree roots in forest seedling cultivation according to the present invention.

[0023] Figure 8 This is a partial structural diagram of the vertical cross-section of the connection between the silicone groove pad and the silicone inclined inner pad of the present invention.

[0024] Figure 9 This is a partial structural diagram of the vertical cross-section at the connection between the sunshade pad and the spacer column of the present invention.

[0025] The attached diagram is labeled as follows: 1. Silicone trough pad; 2. Fixing block; 3. Support plate; 4. Long absorbent spiral gel strip; 5. Inclined block; 6. Inclined support plate; 7. Short inclined absorbent spiral gel strip; 8. Bottom block; 9. Cotton thread; 10. Interval inclined block; 11. Interval absorbent spiral gel strip; 12. Counterweight block; 13. Support column; 14. Guide block; 15. Inclined column; 16. Support ring; 17. Guide column; 18. Inclined cone; 19. Silicone inclined inner pad; 20. Silicone inclined outer pad; 21. Outer inclined surface; 22. Inner inclined surface; 23. Interval column; 24. Shading pad; 25. Flow guiding surface; 26. Infiltration tank; 27. Guide cone; 28. Seedling container. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figure 1 - Figure 9 The present invention relates to a soil water retention device for tree seedling roots. The soil water retention device for tree seedling roots is equipped with a seedling water retention component. The seedling water retention component is designed to enable tree seedlings to absorb water from multiple directions in rainy environments and release water from multiple directions in dry environments. The release contact area is wide, which meets the multi-dimensional water retention needs of the root system, improves the water retention effect, maintains the root water environment in different directions, and improves the quality of tree seedling cultivation. The specific structural design of the seedling water retention component is as follows.

[0028] In this embodiment, as Figure 1 - Figure 4 As shown, multiple fixing blocks 2 are fixed on the lower surface of the silicone groove pad 1, and each fixing block 2 has a seedling water retention component at its bottom end; the seedling water retention component includes a support plate 3 fixedly installed at the bottom end of the fixing block 2, a long water-absorbing spiral gel strip 4 fixedly connected to the lower surface of the support plate 3, an inclined block 5 fixedly connected to the outer wall of the support plate 3, and an inclined support plate 6 fixedly installed on one inclined surface of the inclined block 5.

[0029] A short, inclined, absorbent spiral gel strip 7 is fixedly connected to one inclined surface of the inclined support 6, and a base block 8 is provided on one side of the long, absorbent spiral gel strip 4. A cotton thread 9 is fixedly connected to the lower surface of the base block 8, and multiple spacer inclined blocks 10 are fixedly connected to the outer wall of the cotton thread 9. A spacer absorbent spiral gel strip 11 is fixedly connected to one inclined surface of each spacer inclined block 10. The length of the long, absorbent spiral gel strip 4 is greater than the length of the short, inclined, absorbent spiral gel strip 7, and the length of the long, absorbent spiral gel strip 4 is greater than the length of the spacer absorbent spiral gel strip 11.

[0030] In this embodiment, as Figure 2 - Figure 4 As shown, multiple spacer blocks 10 are arranged sequentially from top to bottom. Each spacer block 10 has an inclined column 15 fixedly connected to its inner wall. The cotton thread 9 and the spacer absorbent spiral gel strip 11 are both fixedly connected to the inclined column 15. The center point of the top of the spacer absorbent spiral gel strip 11 is higher than the center point of the bottom of the spacer absorbent spiral gel strip 11. The support plate 3 and the inclined support plate 6 are both fixedly connected to the bottom block 8 so that the inclined column 15 can be supported on the cotton thread 9 and the spacer absorbent spiral gel strip 11.

[0031] In this embodiment, as Figure 2 - Figure 6 As shown, a guide cone 27 is fixedly connected to the bottom end of the long absorbent spiral gel strip 4; a counterweight 12 is fixedly connected to the bottom end of the short inclined absorbent spiral gel strip 7, and two pillars 13 are fixedly installed on one side of the counterweight 12, with a guide block 14 fixedly connected to one end of each pillar 13; a support ring 16 is fixedly connected to the bottom end of each spaced absorbent spiral gel strip 11, and a guide post 17 is fixedly installed on the inner wall of the support ring 16, with an inclined cone 18 fixedly connected to the bottom end of the guide post 17. The guide cone 27, guide block 14, and inclined cone 18 are all made of marble, and the top surface area of ​​the guide cone 27 is larger than its bottom surface area. The outer walls of the two guide blocks 14 are smooth surfaces, and the weight of the guide cone 27 is less than the weight of the inclined cone 18; the weight of the guide cone 27 is less than the weight of the guide block 14.

[0032] In this embodiment, as Figure 7 - Figure 9 As shown, a silicone inclined inner pad 19 is fixedly connected to the upper surface of the silicone groove pad 1; a silicone inclined outer pad 20 is provided outside the silicone inclined inner pad 19, and the silicone inclined outer pad 20 is fixedly connected to the silicone groove pad 1. The upper surface of the silicone inclined outer pad 20 forms an outer inclined surface 21, and the upper surface of the silicone inclined inner pad 19 forms an inner inclined surface 22. Multiple spacer columns 23 are fixedly connected to the bottom of the inner wall of the silicone groove pad 1; a sunshade soft pad 24 is installed at the top of the spacer column 23, and the multiple spacer columns 23 are all fixedly connected to the sunshade soft pad 24. A guide surface 25 is provided at the bottom of the inner wall of the silicone groove pad 1, and multiple permeation grooves 26 are opened on the inner wall of the guide surface 25. The multiple permeation grooves 26 are arranged in a circular ring at equal intervals. There is a gap between the sunshade soft pad 24 and the inner inclined surface 22, and a gap between the sunshade soft pad 24 and the outer inclined surface 21. The vertical cross-section of the sunshade soft pad 24 is arc-shaped, and the outer wall of the sunshade soft pad 24 is a smooth surface. Below the cotton thread 9 is a seedling container 28, and the bottom of the seedling container 28 has multiple through holes with a circular cross-section.

[0033] The working principle of the soil water retention device for tree roots in this invention is as follows:

[0034] First, during seedling installation, the operator pulls both ends of the silicone groove pad 1 with both hands, causing the two ends to separate and open. The silicone groove pad 1 is then fitted onto the outside of the main root of the seedling. Next, the fixing block 2 supports the support piece 3, which in turn supports the long absorbent spiral gel strip 4. The long absorbent spiral gel strip 4 spirally wraps around and adheres to the vertical branch roots of the seedling. The support piece 3 also supports the inclined block 5, which in turn supports the inclined support piece 6. The inclined support piece 6 supports the short inclined absorbent spiral gel strip 7, which spirally wraps around and adheres to the inclined branch roots of the seedling.

[0035] At the same time, the support plate 3 supports the base block 8, the base block 8 supports the cotton thread 9, the cotton thread 9 supports multiple inclined columns 15, the cotton thread 9 supports multiple base blocks 8, and the base block 8 inclinedly supports the spaced water-absorbing spiral gel strip 11. The spaced water-absorbing spiral gel strip 11 is wrapped around the root of the inclined branch of the forest seedling between the long water-absorbing spiral gel strip 4 and the short inclined water-absorbing spiral gel strip 7. In this way, the root of the inclined branch of the forest seedling at the interval position is wrapped and adhered in an inclined spiral.

[0036] Secondly, when the present invention performs counterweight-guided water retention, the guide block 14 presses down on the support column 13, and the support column 13 drives the counterweight block 12 to move downward. The counterweight block 12 causes the bottom end of the short inclined water-absorbing spiral gel strip 7 to be pressed down, so that the short inclined water-absorbing spiral gel strip 7 can guide the inclined branch roots of the upper part of the seedling to move downward, ensuring that the inclined branch roots of the upper part of the seedling take root and absorb water. At the same time, the guide cone 27 is counterweighted on the long water-absorbing spiral gel strip 4, and the long water-absorbing spiral gel strip 4 can weigh down the vertical branch roots of the seedling, ensuring that the roots grow downward. At the same time, the inclined cone 18 and the inclined counterweight guide column 17 move downwards. The guide column 17 drives the support ring 16 to move downwards at an angle. The support ring 16 drives the spaced water-absorbing spiral gel strip 11 to move downwards at an angle. In this way, the spaced water-absorbing spiral gel strip 11 can move downwards at an angle to ensure that the roots of the inclined branches of the seedlings at the spaced positions are tilted downwards for growth and water absorption.

[0037] Then, when the present invention performs container placement and shading, the silicone trough pad 1 is placed inside the seedling container 28, and soil is filled under the silicone trough pad 1 to compact it downwards, thus placing the seedling container 28 outdoors. When it rains, the rainwater flows along the outer wall of the shading pad 24 to the inner slope 22 and the outer slope 21, and is guided through the outer slope 21 and the inner slope 22 to the inner wall of the silicone trough pad 1 until it enters the guiding surface 25, and then permeates to the bottom of the silicone trough pad 1 through multiple permeation grooves 26. The short inclined water-absorbing spiral gel strip 7 and the long water-absorbing spiral gel strip 4 can perform a large amount of water absorption in multiple dimensions, and the multiple spaced water-absorbing spiral gel strips 11 can also perform a large amount of water absorption in multiple dimensions. During hot weather, the silicone groove pad 1 supports the spacer column 23, and the spacer column 23 supports the shading pad 24. The shading pad 24 can provide staggered shading, preventing the soil moisture under the silicone groove pad 1 from evaporating rapidly and greatly slowing down the rate of soil moisture evaporation.

[0038] Finally, during the water retention and release process of this invention, when high temperatures persist, the soil temperature below the silicone mat 1 is relatively high. This causes the water inside the short, inclined, water-absorbing spiral gel strip 7 to begin evaporating and releasing upwards. The short, inclined, water-absorbing spiral gel strip 7 can spirally wrap around and adhere to the inclined branch roots of the seedlings, releasing water from more locations and covering a wider water supply area. The long, water-absorbing spiral gel strip 4 can spirally wrap around and adhere to the vertical branch roots of the seedlings, releasing water from more locations and covering a wider water supply area. Simultaneously, the spaced-apart water-absorbing spiral gel strips 11 spirally wrap around and adhere to the inclined branch roots of the seedlings at intervals, releasing water from more locations and covering a wider water supply area. This can meet the multi-directional water retention needs of the root system, thereby improving the water retention effect of seedling cultivation, effectively maintaining the water environment required by the root system in different locations, and significantly improving the quality of seedling cultivation.

[0039] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A soil water retention device for tree root systems in forest seedling cultivation, comprising a silicone trough pad, a seedling container, and multiple fixing blocks, characterized in that: Multiple fixing blocks are fixed to the lower surface of the silicone tank pad, and each fixing block is equipped with a seedling water retention component at its bottom. The seedling water retention component includes a support plate fixedly installed at the bottom of the fixed block. A long water-absorbing spiral gel strip is fixedly connected to the lower surface of the support plate. An inclined block is fixedly connected to the outer wall of the support plate, and an inclined support plate is fixedly installed on one inclined surface of the inclined block. A short inclined absorbent spiral gel strip is fixedly connected to one side of the inclined support plate, and a bottom block is provided on one side of the long absorbent spiral gel strip. A cotton thread is fixedly connected to the lower surface of the bottom block, and multiple spacer inclined blocks are fixedly connected to the outer wall of the cotton thread. A spacer absorbent spiral gel strip is fixedly connected to one side of the inclined surface of each spacer inclined block. The center point of the top of the spacer absorbent spiral gel strip is higher than the center point of the bottom of the spacer absorbent spiral gel strip. A guide cone is fixedly connected to the bottom of the long absorbent spiral gel strip. A counterweight is fixedly connected to the bottom end of the short, inclined, absorbent spiral gel strip, and two pillars are fixedly installed on one side of the counterweight. A guide block is fixedly connected to one end of each of the two pillars. Each spacer absorbent spiral gel strip has a support ring fixedly connected to its bottom end, and a guide post is fixedly installed on the inner wall of the support ring. An inclined cone is fixedly connected to the bottom end of the guide post. The guide cone, guide block, and inclined cone are all made of marble. The top surface area of ​​the guide cone is larger than its bottom surface area.

2. The soil water retention device for tree root systems in forest seedling cultivation according to claim 1, characterized in that: The length of the long absorbent spiral gel strip is greater than the length of the short inclined absorbent spiral gel strip, and the length of the long absorbent spiral gel strip is greater than the length of the spaced absorbent spiral gel strip.

3. The soil water retention device for tree root systems in forest seedling cultivation according to claim 1, characterized in that: Multiple spacer blocks are arranged sequentially from top to bottom. Each spacer block has an inclined column fixedly connected to its inner wall. The cotton thread and the spacer absorbent spiral gel strip are both fixedly connected to the inclined column. Both the support plate and the inclined support plate are fixedly connected to the base block.

4. The soil water retention device for tree root systems in forest seedling cultivation according to claim 1, characterized in that: The outer walls of both guide blocks are smooth surfaces, and the weight of the guide cone is less than the weight of the inclined cone; The weight of the guide cone is less than the weight of the guide block.

5. A soil water retention device for tree root systems in forest seedling cultivation according to claim 1, characterized in that: A silicone inclined inner pad is fixedly connected to the upper surface of the silicone groove pad; The silicone inclined inner pad is provided with a silicone inclined outer pad, which is fixedly connected to the silicone groove pad. The upper surface of the silicone inclined outer pad forms an outer inclined surface, and the upper surface of the silicone inclined inner pad forms an inner inclined surface. Multiple spacer columns are fixedly connected to the bottom of the inner wall of the silicone groove pad. The top of each spacer is fitted with a sunshade pad, and multiple spacers are fixedly connected to the sunshade pad. The bottom of the inner wall of the silicone groove pad is provided with a flow guide surface, and multiple permeation grooves are formed on the inner wall of the flow guide surface. The multiple permeation grooves are arranged in a circular and equidistant arrangement.

6. A soil water retention device for tree root systems in forest seedling cultivation according to claim 5, characterized in that: There is a gap between the sunshade pad and the inner slope, and there is a gap between the sunshade pad and the outer slope.

7. A soil water retention device for tree root systems in forest seedling cultivation according to claim 5, characterized in that: The vertical cross-sectional shape of the sunshade cushion is arc-shaped, and the outer wall of the sunshade cushion is a smooth surface.

8. A soil water retention device for tree root systems in forest seedling cultivation according to claim 1, characterized in that: Below the cotton thread is a seedling container, and the bottom of the seedling container has multiple through holes with a circular cross-section.

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