Ecological restoration system for small watershed land and water ecotone

Abstract

The utility model relates to an ecological restoration system for a small watershed land and water interlaced zone, which comprises a water body and land, a plurality of planting pots are arranged on the land, and plants are planted in the planting pots; a vertical intercepting net is arranged between the land on the two sides of the water body, the upper top edge of the intercepting net is located on the surface of the water body, and the bottom edge of the intercepting net is lower than the surface of the water body; a collecting pit communicated with the water body is arranged on the land on the upstream of the intercepting net, a detachable lifting basket is arranged in the collecting pit, an inclined drainage pipe is arranged at the bottom of the collecting pit, and the lower end of the drainage pipe leads to the water body on the downstream. Polluting components in the soil are absorbed by the plants, the soil is purified, and meanwhile the pollution components in the soil are prevented from diffusing towards the land outside the land and water interlaced zone. In addition, the intercepting net can intercept garbage on the surface of the water body, the lifting baskets in the collecting pit are taken out at set intervals, then the garbage in the collecting pit can be cleaned, and operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of water ecological restoration, and in particular relates to an ecological restoration system for the land-water ecotone of a small watershed. Background Art

[0002] The land-water ecotone refers to the transitional zone between land and water for material transfer, energy conversion, and information exchange, with functions such as shore protection, soil and water conservation, water source protection, and flood peak reduction, and is a barrier to prevent agricultural non-point source pollution. Human activities will affect the river ecosystem, and water pollution is likely to cause the death of vegetation and soil pollution in the land-water ecotone. Therefore, it is necessary to carry out ecological restoration on the land-water ecotone. Generally, many small rivers usually flow into large rivers. After being polluted, small rivers will also bring polluted components into large rivers. Currently, ecological restoration and treatment are usually carried out on large rivers, which cannot solve the problem from the source and the effect is poor. In order to prevent the diffusion of polluted components in polluted rivers, it is best to carry out ecological restoration on the land-water ecotone of small watersheds.

[0003] Currently, the ecological restoration method of the land-water ecotone is usually to plant plants that can purify water and soil, and reference can be made to a pollution restoration system and method for the land-water ecotone disclosed in CN201810023723.1. In addition to soluble pollutants, domestic garbage such as plastic bags usually floats on the river surface, and these domestic garbage are likely to reach the land-water ecotone and need to be manually cleaned, with low efficiency. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an ecological restoration system for the land-water ecotone of a small watershed, which can not only repair the soil, but also conveniently remove various garbage that reaches the land-water ecotone along with the water flow.

[0005] To solve the above problems, the technical solution adopted by the utility model is: an ecological restoration system for the land-water ecotone of a small watershed, including a water body and land. A plurality of planting pots are arranged on the land, and plants are planted in the planting pots;

[0006] A vertical interception net is arranged between the lands on both sides of the water body. The upper edge of the interception net is on the water surface of the water body, and the bottom edge of the interception net is lower than the water surface of the water body; A collection pit communicating with the water body is arranged on the land upstream of the interception net. A detachable basket is arranged in the collection pit, and an inclined drain pipe is arranged at the bottom of the collection pit. The lower end of the drain pipe leads to the downstream water body.

[0007] Further, sleeves are arranged at both ends of the interception net. The sleeves are sleeved outside the vertical positioning columns, and the sleeves are in clearance fit with the positioning columns; The land is pre-buried with positioning sleeves, and the lower end of the positioning column is inserted into the positioning sleeve and is threadedly connected with the positioning sleeve.

[0008] Furthermore, a support ring plate is provided on the side wall of the collection pit, and the basket is naturally placed on the support ring plate.

[0009] Furthermore, the interception net is arc-shaped, and the middle part of the interception net protrudes towards the upstream; collection pits are provided on the land at both ends of the interception net.

[0010] Furthermore, the planting pot includes an outer pot body and an inner positioning frame. A plurality of holes are provided on the outer pot body. A plurality of radially extending connecting rods are provided on the inner side wall of the outer pot body. An annular support plate is fixedly provided at one end of the connecting rod facing the center of the outer pot body. The inner positioning frame is naturally placed on the support plate. An initial planting soil layer is provided inside the inner positioning frame, and plants are planted in the initial planting soil layer. A to-be-repaired planting soil layer is filled between the inner positioning frame and the outer pot body.

[0011] Furthermore, the inner positioning frame is a net cylinder, and the lower end of the net cylinder is sealed by a net plate.

[0012] Furthermore, the interception net is a stainless steel wire mesh.

[0013] The beneficial effects of the present utility model are as follows: The present utility model plants plants on the exposed ground in the water-land ecotone, uses the plants to absorb the polluted components in the soil, purifies the soil, and at the same time prevents the polluted components in the soil from spreading to the land outside the water-land ecotone. In addition, by providing an interception net, the interception net can intercept the garbage on the water surface and prevent the garbage from moving to the downstream of the river; the garbage intercepted by the interception net gradually moves to the collection pit, and the basket in the collection pit is taken out every once in a while, and the garbage in the collection pit can be cleaned up, and the operation is relatively convenient, which can improve the garbage cleaning efficiency. Description of the Drawings

[0014] Figure 1 is the overall top view schematic diagram of the present utility model;

[0015] Figure 2 is Figure 1 the sectional view taken along A-A in

[0016] Figure 3 is the installation schematic diagram of the interception net;

[0017] Figure 4 is the schematic diagram of the planting pot;

[0018] Reference Numerals: 1—water body; 2—land; 3—planting pot; 31—outer pot body; 32—inner positioning frame; 33—connecting rod; 34—support plate; 35—initial planting soil layer; 36—to-be-repaired planting soil layer; 4—plant; 5—interception net; 6—collection pit; 7

[0019] —Basket; 8—Drain pipe; 9—Positioning post; 10—Positioning sleeve; 11—Sleeve; 12—Support ring plate. Detailed implementation mode

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0021] The small watershed aquatic-terrestrial ecotone ecological restoration system of the present utility model, as Figure 1 and Figure 2 shown, includes a water body 1 and a land 2. The water body 1 is the small watershed river water, and the land 2 is the part of the aquatic-terrestrial ecotone not covered by the water body 1, located on both sides of the water body 1 and connected to the water body 1. A plurality of planting pots 3 are arranged on the land 2, and plants 4 are planted in the planting pots 3. The plants 4 are used to improve the soil ecology of the land 2, play the roles of maintaining soil and water, absorbing pollution components, and preventing the pollution components of the water body 1 from diffusing to the outside. When planting the plants 4, if there are original plants on the land 2, the original plants are not damaged, and only the plants 4 need to be planted on the bare and uncovered ground. The plants 4 of the present utility model can be Alternanthera philoxeroides, Acorus calamus, etc.

[0022] A vertical interception net 5 is arranged between the lands 2 on both sides of the water body 1. The upper edge of the interception net 5 is on the surface of the water body 1, and the bottom edge of the interception net 5 is lower than the surface of the water body 1; a collection pit 6 communicating with the water body 1 is arranged on the land 2 upstream of the interception net 5. A detachable basket 7 is arranged in the collection pit 6, and an inclined drain pipe 8 is arranged at the bottom of the collection pit 6. The lower end of the drain pipe 8 leads to the downstream water body 1.

[0023] The interception net 5 can intercept the garbage floating on the surface of the water body 1. When the garbage reaches the interception net 5, it is blocked by the interception net 5 and cannot continue to move downstream, and gradually reaches near the river bank along the interception net 5 under the scouring of the river water. The present utility model has arranged the collection pit 6 on the bank, so the garbage can enter the collection pit 6 along with the water flow. Every once in a while, the basket 7 is taken out, and the garbage in the collection pit 6 can be cleaned up, and the operation is relatively convenient. In addition, the present utility model has arranged the drain pipe 8 at the bottom of the collection pit 6, and the water in the collection pit 6 can be continuously drained into the downstream water body 1 through the drain pipe 8, which can promote the river water to enter the collection pit 6, thereby driving the garbage on the surface of the river water to enter the collection pit 6 faster. The collection pit 6 can adopt a circular or square concrete pool body, and the top of the collection pit 6 is connected to the surface layer of the water body 1. The drain pipe 8 is buried underground and can adopt a plastic pipe or a corrosion-resistant metal pipe.

[0024] In order to facilitate the fixation of the interception net 5, as Figure 3As shown, circular sleeves 11 are provided at both ends of the interception net 5. The sleeves 11 are sleeved on the outside of the vertical positioning column 9, and the sleeves 11 and the positioning column 9 are clearance-matched, so that the sleeves 11 can rotate relative to the positioning column 9. A positioning sleeve 10 is pre-buried on the land 2, and the lower end of the positioning column 9 is inserted into the positioning sleeve 10 and threadedly connected with the positioning sleeve 10. When installing the interception net 5, align the lower end of the positioning column 9 with the inner hole of the positioning sleeve 10 and rotate the positioning column 9 so that the lower end of the positioning column 9 is threadedly connected with the positioning sleeve 10. The water level of the water body 1 changes with the seasons. With this installation method, the length of the positioning column 9 extending into the positioning sleeve 10 can be adjusted, and then the height of the interception net 5 can be adjusted, so that the height of the interception net 5 is adapted to the liquid level of the water body 1, thereby ensuring effective interception of floating garbage.

[0025] In order to facilitate the taking and placing of the basket 7, a supporting ring plate 12 is provided on the side wall of the collection pit 6, and the basket 7 is naturally placed on the supporting ring plate 12. The outer wall of the basket 7 is gap-matched with the inner wall of the collection pit 6, and the upper end of the basket 7 is lower than the liquid level of the water body 1. A handle can be provided on the top of the basket 7 to facilitate taking out the basket.

[0026] The interception net 5 may be straight, perpendicular to the flow direction of the water body 1, or not perpendicular to the flow direction of the water body 1. As a preferred embodiment, the interception net 5 is arc-shaped, and the middle of the interception net 5 protrudes toward the upstream; collection pits 6 are provided on the land 2 at both ends of the interception net 5. The interception net 5 is arc-shaped, and when the garbage moves to the interception net 5, it can move faster along the interception net 5 to the collection pit 6.

[0027] In the present invention, the planting pot 3 can adopt a conventional structure, as a preferred embodiment, such as Figure 4 As shown, the planting pot 3 includes an outer pot body 31 and an inner positioning frame 32. The outer pot body 31 can be a conventional plastic pot. A plurality of holes are arranged on the outer pot body 31 to facilitate water to enter the outer pot body 31. At the same time, the roots of the plants 4 can extend out of the outer pot body 31 through the holes. The inner positioning frame 32 is used to fix the cultivated plants 4. A plurality of radially extending connecting rods 33 are arranged on the inner side wall of the outer pot body 31. An annular support plate 34 is fixedly arranged at one end of the connecting rod 33 facing the center of the outer pot body 31. The inner positioning frame 32 is naturally placed on the support plate 34. An initial planting soil layer 35 is arranged in the inner positioning frame 32. The plants 4 are planted in the initial planting soil layer 35. The planting soil layer 36 to be repaired is filled between the inner positioning frame 32 and the outer pot body 31.

[0028] Plants 4 are usually first cultivated in a concentrated manner using nutrient soil and nutrient matrix (i.e., initial planting soil layer 35), and then transplanted to the land 2 in the water-land transition zone after they grow to a certain height. After the cultivation of plants 4 is completed, the plants 4 together with the initial planting soil layer 35 are taken out from the cultivation bed, and then placed in each inner positioning frame 32, so that the plants 4 maintain an upright posture, so as to facilitate batch transportation to the destination. During transplantation, a planting pit of suitable depth is first dug on the land 2, and then the outer pot body 31 is placed in the planting pit, and then the inner positioning frame 32 is placed on the support plate 34, and finally the soil produced when digging the planting pit is filled into the outer pot body 31 to form a planting soil layer 36 to be repaired. With this planting method, the root system of plant 4 can quickly enter the planting soil layer 36 to be repaired, absorb the pollutants in the planting soil layer 36 to be repaired, and as the plant 4 grows, the root system can also extend outside the outer pot body 31, thereby purifying the soil outside the outer pot body 31.

[0029] When a flood occurs, the water flow increases, and the water body 1 may submerge the plant 4. At the same time, since the river flow rate also increases, the plant 4 is easily washed away. Therefore, the utility model does not directly plant the plant 4 in the soil of the land 2, but sets a planting pot 3. When the meteorological monitoring agency detects that a flood is coming, the planting pot 3 can be pulled out as a whole to reduce the damage to the root system of the plant 4, ensure the integrity of the plant 4, and prevent the death of the plant 4, and then move the planting pot 3 to a safe place. After the flood, the planting pot 3 is set to the original position. It can be seen that the utility model can easily change the position of the plant 4 to prevent the flood from washing the plant 4 away.

[0030] In the utility model, the inner positioning frame 32 is a net cylinder, and the lower end of the net cylinder is sealed by a net plate. The inner diameter of the net cylinder is adapted to the diameter of the initial planting soil layer 35.

[0031] In the utility model, the interception net 5 is made of stainless steel wire mesh.

[0032] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An ecological restoration system for a small watershed land-water transition zone, comprising a water body (1) and land (2), wherein a plurality of planting pots (3) are arranged on the land (2), and plants (4) are planted in the planting pots (3); the characteristics are: A vertical interception net (5) is arranged between the land (2) on both sides of the water body (1), the upper edge of the interception net (5) is on the surface of the water body (1), and the bottom edge of the interception net (5) is lower than the surface of the water body (1); a collection pit (6) connected to the water body (1) is arranged on the land (2) upstream of the interception net (5), a detachable basket (7) is arranged in the collection pit (6), and an inclined drainage pipe (8) is arranged at the bottom of the collection pit (6), and the lower end of the drainage pipe (8) leads to the water body (1) downstream.

2. The small watershed ecotone ecological restoration system according to claim 1, characterized in that: Sleeves (11) are provided at both ends of the intercepting net (5), and the sleeves (11) are sleeved on the outside of the vertical positioning column (9), and the sleeves (11) and the positioning column (9) are loosely matched; the land (2) is pre-buried with a positioning sleeve (10), and the lower end of the positioning column (9) is inserted into the positioning sleeve (10) and is threadedly connected to the positioning sleeve (10).

3. The ecological restoration system for the water-land ecotone in a small watershed according to claim 1, characterized in that: The side wall of the collection pit (6) is provided with a supporting ring plate (12), and the basket (7) is naturally placed on the supporting ring plate (12).

4. The ecological restoration system for the land-water ecotone in a small watershed according to claim 1, characterized in that: The interception net (5) is arc-shaped, and the middle part of the interception net (5) protrudes toward the upstream; collection pits (6) are provided on the land (2) at both ends of the interception net (5).

5. The ecological restoration system for the water-land ecotone in small watersheds according to claim 1, wherein: The planting pot (3) comprises an outer pot body (31) and an inner positioning frame (32), the outer pot body (31) being provided with a plurality of holes, the inner side wall of the outer pot body (31) being provided with a plurality of radially extending connecting rods (33), one end of the connecting rod (33) facing the center of the outer pot body (31) being fixedly provided with an annular support plate (34), the inner positioning frame (32) being naturally placed on the support plate (34), an initial planting soil layer (35) being provided in the inner positioning frame (32), the plant (4) being planted in the initial planting soil layer (35), and a planting soil layer (36) to be repaired being filled between the inner positioning frame (32) and the outer pot body (31).

6. The small watershed ecotone ecological restoration system according to claim 5, characterized in that: The inner positioning frame (32) is a mesh cylinder, and the lower end of the mesh cylinder is sealed by a mesh plate.

7. The ecological restoration system for the land-water ecotone in small watersheds according to claim 1, characterized in that: The interception net (5) is a stainless steel wire mesh.

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