Cofferdam soil structure for managing water balance of trees and grass

Abstract

The invention discloses a cofferdam soil structure for managing water balance of trees and grass, which effectively achieves the purpose of performing water zoning management on trees and green plants under the trees, and comprises a water isolation ring, the lower side of the water isolation ring is connected with at least two water storage rings which are concentrically arranged, a water passing area is formed between every two water storage rings, and the water passing area is communicated with the water isolation ring. A plurality of connecting belts are arranged between every two adjacent water storage rings, a filling layer is arranged on the upper sides of the water storage rings, a soil layer is arranged on the upper side of the filling layer, the soil layer is divided into a tree planting area and a green plant planting area by the water separation rings, a hydrophobic ring with the middle connected with the water separation rings is arranged on the lower sides of the water storage rings, and the water separation rings are arranged on the lower sides of the water storage rings. The device is novel in structure, ingenious in conception and easy and convenient to operate, water in a planting area can be effectively drained in time, the occurrence risk of the root rotting condition is reduced, and the functions of ventilation of tree root systems and watering and fertilization of the root systems are added.

Description

Technical Field

[0001] The invention belongs to the technical field of green plant maintenance, and relates to a cofferdam soil structure for managing the water balance of trees and grasses. Background Art

[0002] In traditional green space management, lawns and ground cover flowers are usually planted around trees to enrich the landscape effect. However, this management method faces many challenges during maintenance. Ground cover flowers have a large water demand and need to be watered frequently, while trees have a relatively small water demand. During the watering process, water is often absorbed by the roots of trees. Long-term excessive water may cause root rot of trees and even cause the death of trees. Therefore, a cofferdam soil structure that can isolate water from the roots of ground cover flowers and trees and manage the water balance of trees and grasses is needed to solve the above problems. Summary of the invention

[0003] In view of the above problems, the present invention proposes a cofferdam soil structure for managing the water balance of trees and grasses, which effectively solves the problems in the prior art.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A cofferdam soil structure for managing the water balance of trees and grasses comprises a water-isolating ring, the lower side of which is connected to at least two concentrically arranged water storage rings, a water-passing area is formed between every two water storage rings, a plurality of connecting belts are arranged between every two adjacent water storage rings, a filling layer is arranged on the upper side of the water storage ring, a soil layer is arranged on the upper side of the filling layer, the water-isolating ring divides the soil layer into a tree planting area and a green plant planting area, a hydrophobic ring is arranged on the lower side of the water storage ring, the middle part of which is connected to the water-isolating ring, and a ventilation mechanism is arranged on the lower side of the hydrophobic ring.

[0006] Preferably, a porous ceramic block is provided between every two of the water storage rings, the porous ceramic block is placed between the water storage ring and the hydrophobic ring, and the upper side of the porous ceramic block is connected to the water flow area.

[0007] Preferably, the ventilation mechanism includes a connecting tube, a ventilation tube and a ventilation needle, the ventilation tube is provided with a plurality of first ventilation holes, the outer diameter of each ventilation needle is adapted to the inner diameter of the first ventilation hole, the upper side of the ventilation tube is connected with a connector, and the connecting tube and the connector are detachably connected via a clamp.

[0008] Preferably, the air-permeable tube comprises a first semicircular tube and a second semicircular tube, and the front and rear ends of the first semicircular tube and the second semicircular tube are detachably connected via a clamp.

[0009] Preferably, the ventilation needle is a hollow structure, and a through groove is provided on the side of the ventilation needle close to the ventilation tube, and the through groove is used to connect the interior of the ventilation needle with the interior of the ventilation tube. A plurality of second ventilation holes are provided in the middle of the ventilation needle, and a blocking gasket fixedly connected to the ventilation needle is provided on the outer side of each second ventilation hole.

[0010] Preferably, the connecting pipe is S-shaped, the middle part of the connecting pipe passes through the middle part of the water-isolating ring and is connected with the upper part of the soil layer, a sealing cover is provided on the upper side of the connecting pipe, and a filter net is provided on the upper part of the sealing cover.

[0011] Preferably, the materials of the water-isolating ring, the water-storing ring and the hydrophobic ring are one or more combinations of breathable polyethylene film, polyurethane film, polytetrafluoroethylene film, breathable geotextile, Gore-Tex film and new protective film.

[0012] Preferably, the filling layer is made of coconut palm fiber.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention has a water storage ring and a hydrophobic ring, which can not only provide a long-term moist environment for the green plant planting area where green plants and flowers are located, but also isolate the moisture at the roots of trees to a certain extent, so that the root system of the trees can avoid excessive moisture and reduce the occurrence of root rot.

[0015] 2. The present invention has a ventilation mechanism, which can not only increase the air flow at the roots of trees, but also directly apply water and fertilizer to the roots of trees when necessary, thereby increasing the tree maintenance effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the explosion structure of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the ventilation mechanism in the present invention.

[0019] Figure 4 For the present invention Figure 3 A partial enlarged schematic diagram of area A in the middle.

[0020] In the figure: 1. water-blocking ring; 2. water storage ring; 3. water-passing area; 4. connecting belt; 5. filling layer; 6. soil layer; 7. tree planting area; 8. green plant planting area; 9. hydrophobic ring; 10. ventilation mechanism; 11. porous ceramic block; 12. connecting pipe; 13. ventilation pipe; 14. ventilation needle; 15. first ventilation hole; 16. connecting head; 17. first semicircular tube; 18. second semicircular tube; 19. through groove; 20. second ventilation hole; 21. blocking gasket; 22. sealing cover; 23. filter net. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The following is combined with Figure 1-Figure 4 The specific implementation modes of the present invention are described in further detail.

[0023] Depend on Figure 1-Figure 4 As shown, the present invention includes a water-isolating ring 1. In order to manage the water distribution of trees and green plants under the trees, at least two concentrically arranged water storage rings 2 are connected to the lower side of the water-isolating ring 1. A water-passing area 3 is formed between every two water storage rings 2. A plurality of connecting belts 4 are arranged between every two adjacent water storage rings 2. A filling layer 5 is arranged on the upper side of the water storage ring 2. A soil layer 6 is arranged on the upper side of the filling layer 5. The water-isolating ring 1 divides the soil layer 6 into a tree planting area 7 and a green plant planting area 8. A hydrophobic ring 9 whose middle part is connected to the water-isolating ring 1 is arranged on the lower side of the water storage ring 2. A ventilation mechanism 10 is arranged on the lower side of the hydrophobic ring 9.

[0024] Further, by Figure 1-Figure 4 As shown, in order to drain the planting area in time, a porous ceramic block 11 is provided between each two water storage rings 2, the porous ceramic block 11 is placed between the water storage ring 2 and the hydrophobic ring 9, and the upper side of the porous ceramic block 11 is connected to the water flow area 3;

[0025] It should be noted that the water-isolating ring 1, the water-storing ring 2 and the hydrophobic ring 9 are all provided with a connecting zipper along their respective radial directions, which is used to sleeve the water-isolating ring 1 on the outside of the tree trunk; the cross-sectional shape of the water-storing ring 2 is in the shape of a "concave" character; each porous ceramic block 11 is arc-shaped, and a plurality of porous ceramic blocks 11 are combined together to form a ring; the porous ceramic blocks 11 are made of porous ceramic materials, and have good root moisturizing and ventilation effects, which will not be described in detail here; the porous ceramic blocks 11 can not only support the inner and outer sides of the water-storing ring 2, but also absorb excess water from the filling layer 5 from the water-passing area 3 through capillary action;

[0026] When in use, the planting hole can be dug according to the normal tree planting process. After the tree to be planted is placed in the planting hole, the ventilation mechanism 10 can be placed on the upper side of the tree root, and a circular pit with a depth of 25cm-35cm can be dug in a suitable area around the planting hole. The water-isolating ring 1, the hydrophobic ring 9, and the water storage ring 2 can be installed on the outside of the tree so that the hydrophobic ring 9 is in contact with the bottom of the circular pit. Then, the porous ceramic block 11 is placed between every two water storage rings 2, and then a filling layer 5 and a soil layer 6 are arranged on the upper side of the water storage ring 2. Then, shade-loving green plants and flowers can be planted under the trees in the green plant planting area 8. At this time, due to the green plants and flowers Unlike the water demand of trees, green plants and flowers have a larger water demand, and can be watered normally according to their water demand. Under the joint action of the water storage ring 2 and the hydrophobic ring 9, most of the water is isolated on the upper side of the hydrophobic ring 9, and is used for the growth of green plants and flowers through the water storage function of the water storage ring 2, while the roots of trees can avoid being over-humidified and the occurrence of root rot is reduced. In addition, if excessive watering or floods occur, excess water can pass through the water area 3, and be introduced between the water storage ring 2 and the hydrophobic ring 9 under the action of the porous ceramic block 11, and gradually discharged through the edge of the hydrophobic ring 9, thereby reducing soil and water loss in the soil layer 6.

[0027] Further, by Figure 1-Figure 4 As shown, in order to ventilate the tree roots, the ventilation mechanism 10 includes a connecting pipe 12, a ventilation pipe 13 and a ventilation needle 14. The ventilation pipe 13 is provided with a plurality of first ventilation holes 15. The outer diameter of each ventilation needle 14 is adapted to the inner diameter of the first ventilation hole 15. The upper side of the ventilation pipe 13 is connected to a connector 16. The connecting pipe 12 and the connector 16 are detachably connected by a clamp.

[0028] Further, by Figure 1-Figure 4 As shown, the air-permeable tube 13 includes a first semicircular tube 17 and a second semicircular tube 18, and the front and rear ends of the first semicircular tube 17 and the second semicircular tube 18 are detachably connected by a clamp;

[0029] Further, by Figure 1-Figure 4 As shown, the ventilation needle 14 is a hollow structure, and a through groove 19 is provided on one side of the ventilation needle 14 close to the ventilation tube 13, and the through groove 19 is used to connect the interior of the ventilation needle 14 with the interior of the ventilation tube 13, and a plurality of second ventilation holes 20 are provided in the middle of the ventilation needle 14, and a blocking gasket 21 fixedly connected to the ventilation needle 14 is provided on the outer side of each second ventilation hole 20;

[0030] It should be noted that the blocking gasket 21 is made of an elastic material, has a certain toughness, and can undergo a certain elastic deformation. When the venting needle 14 is wedged into the soil, the blocking gasket 21 can prevent the soil from entering the venting needle 14 and block the venting needle 14.

[0031] Further, by Figure 1-Figure 4 As shown, in order to ventilate the tree roots and water and fertilize the roots, the connecting pipe 12 is S-shaped. By changing the angle of the connecting pipe 12, the distance between the middle of the connecting pipe 12 and the tree trunk can be adjusted, so that it can be used for trees of different diameters. The middle of the connecting pipe 12 passes through the middle of the water-isolating ring 1 and is connected to the upper part of the soil layer 6. A sealing cover 22 is provided on the upper side of the connecting pipe 12, and a filter screen 23 is provided on the upper part of the sealing cover 22;

[0032] During use, when installing the ventilation mechanism 10, a clamp can be used to make the first semicircular tube 17 and the second semicircular tube 18 be mounted on the outside of the tree root together, and then each ventilation needle 14 is passed through the corresponding first ventilation hole 15 and wedged into the soil at the root of the tree until the through groove 19 is placed inside the ventilation tube 13. At this time, the connecting tube 12, the ventilation tube 13, and the ventilation needle 14 are interconnected, and air can pass through the filter 23, and in turn pass through the connecting tube 12, the connector 16, the ventilation tube 13, the through hole, the ventilation needle 14, and the second ventilation hole 20 to communicate with the deep soil, so that the deep soil can obtain a certain amount of air circulation. In addition, when it is necessary to water and fertilize the roots of the trees, a certain amount of water or water-fertilizer can be directly injected into the tree planting area 7 or the connecting tube, which can be absorbed by the tree roots through the first ventilation hole 15 or the second ventilation hole 20.

[0033] Further, by Figure 1-Figure 4 As shown, in order to maintain the air permeability of the soil while balancing the water partition, the materials of the water-isolating ring 1, the water-storing ring 2, and the hydrophobic ring 9 are all one or more combinations of breathable polyethylene film, polyurethane (PU) film, polytetrafluoroethylene (PTFE) film, breathable geotextile, Gore-tex film, and Sympatex film;

[0034] It should be noted that breathable polyethylene film, polyurethane (PU) film, polytetrafluoroethylene (PTFE) film, breathable geotextile, Gore-tex membrane, and Sympatex film are all existing technologies, all of which are waterproof and breathable materials that can isolate water while ensuring a certain amount of gas circulation. In addition, the above materials are all flexible materials that can be deformed and can be connected with zippers.

[0035] Further, by Figure 1-Figure 4 As shown, in order to achieve better support and fertilization effects, the filling layer 5 is made of coconut palm fiber;

[0036] It should be noted that coconut palm fiber is an existing technology. When the tree cofferdam structure is just completed, it can form a good supporting effect on the soil and is more conducive to air circulation. It can improve the survival rate of trees, green plants and flowers in the early stage of planting. In addition, since coconut palm fiber will be quickly decomposed in the soil, it can be completely decomposed 1-2 weeks after the green plants and flowers are planted, and absorbed by the green plants and flowers as fertilizer. At this time, the filling layer 5 is merged into a whole with the soil layer 6, both of which are soil, which can improve the moisture retention performance.

[0037] When the present invention is used, firstly, a planting hole can be dug according to the normal tree planting process. After the tree to be planted is placed in the planting hole, the ventilation mechanism 10 can be placed on the upper side of the tree root, and a circular pit with a depth of 25cm-35cm can be dug in a suitable area around the planting hole. Then, the water-isolating ring 1, the hydrophobic ring 9, and the water storage ring 2 can be installed on the outside of the tree so that the hydrophobic ring 9 is in contact with the bottom of the circular pit. Then, the porous ceramic block 11 is placed between every two water storage rings 2, and then a filling layer 5 and a soil layer 6 are arranged on the upper side of the water storage ring 2. Then, shade-loving green plants and flowers can be planted under the trees in the green plant planting area 8. At this time, due to the green plants, Flowers and trees have different water requirements. Green plants and flowers require more water, so they can be watered according to their water requirements. Under the joint action of the water storage ring 2 and the hydrophobic ring 9, most of the water is isolated on the upper side of the hydrophobic ring 9, and is used for the growth of green plants and flowers through the water storage function of the water storage ring 2, while the roots of trees can avoid being over-humidified, reducing the occurrence of root rot. In addition, if excessive watering or floods occur, excess water can pass through the water area 3, and be introduced between the water storage ring 2 and the hydrophobic ring 9 under the action of the porous ceramic block 11, and gradually discharged through the edge of the hydrophobic ring 9, thereby reducing water and soil erosion in the soil layer 6.

[0038] The present invention has a novel structure, ingenious conception, and simple and convenient operation. Through this design, the purpose of water zoning management of trees and green plants under the trees is effectively achieved, the planting area can be drained in time, the risk of root rot is reduced, and the functions of ventilating the tree roots, watering the roots, and fertilizing the roots are added, thereby achieving the balance of water zoning while maintaining the air permeability of the soil and achieving better soil support and fertilization effects.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A soil structure for managing water balance of trees and grass, comprising a water-isolating ring, characterized in that: The lower side of the water-isolating ring is connected to at least two concentrically arranged water storage rings, a water flow area is formed between every two water storage rings, a plurality of connecting belts are provided between every two adjacent water storage rings, a filling layer is provided on the upper side of the water storage ring, a soil layer is provided on the upper side of the filling layer, the water-isolating ring divides the soil layer into a tree planting area and a green plant planting area, a hydrophobic ring is provided on the lower side of the water storage ring, the middle part of which is connected to the water-isolating ring, and a ventilation mechanism is provided on the lower side of the hydrophobic ring.

2. A cofferdam soil structure for managing water balance of trees and grasses according to claim 1, characterized in that: A porous ceramic block is arranged between every two water storage rings. The porous ceramic block is placed between the water storage ring and the hydrophobic ring. The upper side of the porous ceramic block is connected to the water flow area.

3. A cofferdam soil structure for managing water balance of trees and grasses according to claim 1, characterized in that: The ventilation mechanism includes a connecting tube, a ventilation tube and a ventilation needle. The ventilation tube is provided with a plurality of first ventilation holes. The outer diameter of each ventilation needle is matched with the inner diameter of the first ventilation hole. The upper side of the ventilation tube is connected with a connector. The connecting tube and the connector are detachably connected by a clamp.

4. A cofferdam soil structure for managing water balance of trees and grasses according to claim 3, characterized in that: The air-permeable tube comprises a first semicircular tube and a second semicircular tube, and the front and rear ends of the first semicircular tube and the second semicircular tube are both detachably connected via a clamp.

5. The cofferdam soil structure for managing water balance of trees and grass according to claim 3, characterized in that: The ventilation needle has a hollow structure, and a through groove is provided on the side of the ventilation needle close to the ventilation tube. The through groove is used to connect the interior of the ventilation needle with the interior of the ventilation tube. A plurality of second ventilation holes are provided in the middle of the ventilation needle, and a blocking gasket fixedly connected to the ventilation needle is provided on the outer side of each second ventilation hole.

6. The cofferdam soil structure for managing water balance of trees and grasses according to claim 3, characterized in that: The connecting pipe is S-shaped, the middle part of the connecting pipe passes through the middle part of the water-isolating ring and is connected with the upper part of the soil layer, a sealing cover is arranged on the upper side of the connecting pipe, and a filter screen is arranged on the upper part of the sealing cover.

7. The cofferdam soil structure for managing water balance of trees and grasses according to claim 1, characterized in that: The materials of the water-isolating ring, the water-storing ring and the hydrophobic ring are all one or a combination of breathable polyethylene film, polyurethane film, polytetrafluoroethylene film, breathable geotextile, Gore-Tex film and new protective film.

8. The cofferdam soil structure for managing water balance of trees and grasses according to claim 1, characterized in that: The material of the filling layer is coconut palm fiber.

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