A device for evaluating the effect of surface drainage conditions of muddy tidal flats on the colonization of salt marsh seedlings

Abstract

The present invention discloses a device for influencing the drainage conditions of the surface layer of a muddy tidal flat on the colonization of salt marsh seedlings, and relates to the technical field of coastal wetland ecological restoration. It includes a drainage system and a non-drainage system. The drainage system is composed of a first water trough and a drainage device. The non-drainage system is composed of a second water trough. Two circular drain outlets are arranged on both sides of the short side of the first water trough near the bottom of the water trough. The drainage device is composed of 10 PVC pipes with the same diameter. By arranging a drainage pipe inside the first water trough, the first water trough and the second water trough are installed in a natural tidal flat environment. The first water trough and the second water trough must be placed closely and horizontally side by side. At the same time, the first water trough and the second water trough are filled with original soil. The filled original soil cannot have a slope. At the same time, the height of the original soil is flush with the height of the water trough. At the same time, the inside of the PVC pipe in the drainage device should be avoided during filling to ensure smooth drainage.

Description

Technical Field

[0001] The present invention relates to the technical field of coastal wetland ecological restoration, in particular to a device for influencing the surface drainage conditions of a muddy tidal flat on the planting of salt marsh seedlings. Background Art

[0002] Salt marshes are one of the most widely distributed coastal wetland ecosystems on Earth. They provide many important ecological service functions, such as blue carbon sequestration, water conservation, water purification, organism habitats, and sedimentation and siltation promotion. Currently, there are few experiments exploring the impact of surface drainage conditions of muddy tidal flats on the establishment of salt marsh seedlings. The bottleneck is reflected in the following: indoor experiments are difficult to restore the complex dynamic conditions of tidal flats, such as tides and waves, and have low efficiency, high cost, and low restoration degree; at the same time, although in situ field experiments can ensure that the experimental subjects are in a natural tidal flat environment, it is difficult to control environmental factor variables.

[0003] Therefore, how to provide a device to influence the surface drainage conditions of muddy tidal flats on the colonization of salt marsh seedlings, and to achieve control of the drainage conditions as an environmental factor based on field in-situ experiments, is an urgent problem that technicians in this field need to solve. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for influencing the drainage conditions of the surface layer of a muddy tidal flat on the planting of salt marsh seedlings, thereby solving the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for influencing the drainage conditions of the surface layer of a muddy tidal flat on the colonization of salt marsh seedlings, comprising a drainage system and a non-drainage system, wherein the drainage system is composed of a first water trough and a drainage device, and the non-drainage system is composed of a second water trough, two circular drain outlets are arranged on both sides of the short side of the first water trough near the bottom of the water trough, and the drainage device is composed of 10 PVC pipes of the same diameter, the length and diameter of the PVC pipes can be determined according to the size of the water trough, wherein the walls of the fourth PVC pipe, the fifth PVC pipe, the sixth PVC pipe, and the seventh PVC pipe are each preset with two circular drain outlets. shaped openings, the diameters of the above two circular openings are both 0.1 cm larger than the outer diameters of the eighth PVC tube, the ninth PVC tube, the tenth PVC tube, the eleventh PVC tube, the twelfth PVC tube, and the thirteenth PVC tube. A circular opening is preset on the tube wall of the eleventh PVC tube and the twelfth PVC tube, and the diameters of the above circular openings are both 0.1 cm larger than the outer diameters of the tenth PVC tube and the thirteenth PVC tube. The eighth PVC tube, the ninth PVC tube, the tenth PVC tube, and the thirteenth PVC tube do not need preset openings. The above 10 PVC tubes are connected to each other through the preset openings and placed inside the first water tank.

[0006] Preferably, the eleventh PVC pipe and the twelfth PVC pipe are respectively connected to the first drain outlet and the second drain outlet preset on both sides of the short side of the first water tank. After connection, the vertically placed fourth PVC pipe, fifth PVC pipe, sixth PVC pipe and seventh PVC pipe should be flush with the side wall of the water tank.

[0007] Preferably, the bottom outer walls of the first water trough and the second water trough are fixedly connected with a water-tight partition plate to prevent sediment from clogging the first drain outlet and the second drain outlet provided at the bottom of the first water trough.

[0008] Preferably, the first and second water troughs are filled with tidal flat undisturbed soil, and the undisturbed soil is flush with the side walls of the troughs. When filling, the undisturbed soil should avoid the inside of the PVC pipe in the drainage device to ensure smooth drainage.

[0009] Preferably, the second water tank is not provided with an opening, and the undisturbed soil inside the second water tank and the undisturbed soil buried in the first water tank are taken from the same location and have completely identical physical and chemical properties.

[0010] Preferably, the first water tank is a rectangular water tank, and the specific size can be determined according to the type and size of the salt marsh seedlings.

[0011] Preferably, the first water trough and the second water trough are placed closely and horizontally side by side, and the second water trough is exactly the same in shape and size as the first water trough.

[0012] Preferably, the first water tank and the second water tank are both made of PVC or organic glass.

[0013] Compared with related technologies, the device for influencing the drainage conditions of the muddy tidal flat surface on the planting of salt marsh seedlings provided by the present invention has the following beneficial effects:

[0014] 1. The present invention provides a device for influencing the surface drainage conditions of a muddy tidal flat on the planting of salt marsh seedlings. The device comprises the following steps: arranging a drainage pipe inside a first water tank, installing the first water tank and the second water tank in a natural tidal flat environment, and placing the first water tank and the second water tank closely and horizontally side by side. At the same time, the first water tank and the second water tank are filled with original soil. The original soil cannot have a slope, and the height of the original soil is flush with the height of the water tank. At the same time, the inside of the PVC pipe in the drainage device should be avoided during filling to ensure smooth drainage. This solves the problem that indoor experiments are difficult to restore the complex dynamic conditions of the tidal flat, such as tides and waves, and have low efficiency, high cost, and low restoration degree. At the same time, although field in-situ experiments can ensure that the experimental subjects are in a natural tidal flat environment, it is difficult to control the variables of environmental factors.

[0015] 2. The present invention provides a device for influencing the surface drainage conditions of muddy tidal flats on the planting of salt marsh seedlings. By arranging impermeable partitions at the bottom of the first water trough and the second water trough, it effectively prevents sediments from clogging the first drainage port and the second drainage port arranged at the bottom of the first water trough, thereby ensuring smooth drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of filling the original soil of the present invention;

[0018] Figure 3 It is a top view of the structure of the present invention.

[0019] In the figure: 1. First water trough; 2. Second water trough; 3. Water-tight partition; 4. Fourth PVC pipe; 5. Fifth PVC pipe; 6. Sixth PVC pipe; 7. Seventh PVC pipe; 8. Eighth PVC pipe; 9. Ninth PVC pipe; 10. Tenth PVC pipe; 11. Eleventh PVC pipe; 12. Twelfth PVC pipe; 13. Thirteenth PVC pipe; 14. First drain outlet; 15. Second drain outlet; 16. Original soil. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Example 1:

[0022] See also Figure 1-Figure 3The present invention provides a technical solution: a device for affecting the planting of salt marsh seedlings under the surface drainage conditions of a muddy tidal flat, comprising a drainage system and a non-drainage system. The drainage system is composed of a first water tank 1 and a drainage device, and the non-drainage system is composed of a second water tank 2. Two circular drainage outlets are arranged on both sides of the short side of the first water tank 1 near the bottom of the water tank. The drainage device is composed of 10 PVC pipes with the same diameter. The length and diameter of the PVC pipes can be determined according to the size of the water tank. The fourth PVC pipe 4, the fifth PVC pipe 5, the sixth PVC pipe 6, and the seventh PVC pipe 7 are each preset with two circular openings on the pipe wall. The above two openings are arranged on the wall of the first water tank 1. The diameters of the circular openings are all 0.1 cm larger than the outer diameters of the eighth PVC tube 8, the ninth PVC tube 9, the tenth PVC tube 10, the eleventh PVC tube 11, the twelfth PVC tube 12, and the thirteenth PVC tube 13. A circular opening is preset on the wall of each of the eleventh PVC tube 11 and the twelfth PVC tube 12. The diameters of the circular openings are all 0.1 cm larger than the outer diameters of the tenth PVC tube 10 and the thirteenth PVC tube 13. No openings are required for the eighth PVC tube 8, the ninth PVC tube 9, the tenth PVC tube 10, and the thirteenth PVC tube 13. The above 10 PVC tubes are connected through the preset openings. The eleventh PVC pipe 11 and the twelfth PVC pipe 12 are connected to the first drain port 14 and the second drain port 15 on both sides of the short side of the first water tank 1 respectively. After the connection, the fourth PVC pipe 4, the fifth PVC pipe 5, the sixth PVC pipe 6, and the seventh PVC pipe 7 placed vertically should be flush with the side wall of the water tank. The bottom outer walls of the first water tank 1 and the second water tank 2 are fixedly connected with an impermeable partition 3 to prevent sediment from clogging the first drain port 14 and the second drain port 15 set at the bottom of the first water tank 1. The first water tank 1 and the second water tank 2 are filled with tidal flat original soil 1. 6. The undisturbed soil 16 is flush with the side wall of the water tank; when filling the undisturbed soil 16, the inside of the PVC pipe in the drainage device should be avoided to ensure smooth drainage. The second water tank 2 is not provided with an opening. The undisturbed soil 16 inside the second water tank 2 is taken from the same location as the undisturbed soil 16 buried in the first water tank 1, and the physical and chemical properties are completely consistent. The first water tank 1 is a rectangular water tank, and the specific size can be determined according to the type and size of the salt marsh seedlings. The first water tank 1 and the second water tank 2 are placed closely and horizontally side by side. The second water tank 2 is exactly the same in shape and size as the first water tank 1. The materials of the first water tank 1 and the second water tank 2 are both PVC or plexiglass.

[0023] In this embodiment, when in use, first determine the style of the first water tank 1 according to the type and size of the salt marsh seedlings, and at the same time set a drainage pipe inside the first water tank 1, the drainage device is composed of 10 PVC pipes of the same diameter, the length and diameter of the PVC pipes can be determined according to the size of the water tank, wherein the fourth PVC pipe 4, the fifth PVC pipe 5, the sixth PVC pipe 6, and the seventh PVC pipe 7 are each preset with two circular openings on the pipe wall, and the diameters of the above two circular openings are both larger than the outer diameters of the eighth PVC pipe 8, the ninth PVC pipe 9, the tenth PVC pipe 10, the eleventh PVC pipe 11, the twelfth PVC pipe 12, and the thirteenth PVC pipe 13 by 0.1 cm, and a circular opening is respectively preset on the pipe wall of the eleventh PVC pipe 11 and the twelfth PVC pipe 12, and the diameters of the above circular openings are both larger than the outer diameters of the tenth PVC pipe 10 and the thirteenth PVC pipe 13 by 0.1 cm, wherein the eighth PVC pipe 8, the ninth PVC pipe 9, the tenth PVC pipe 10, and the thirteenth PVC pipe 13 do not need preset openings, and the above 10 PVC pipes are connected to each other through the preset openings and placed inside the first water tank 1, wherein the eleventh PVC pipe The PVC pipe 11 and the twelfth PVC pipe 12 are respectively connected to the first drain port 14 and the second drain port 15 preset on both sides of the short side of the first water tank 1. After the connection, the fourth PVC pipe 4, the fifth PVC pipe 5, the sixth PVC pipe 6, and the seventh PVC pipe 7 placed vertically should be flush with the side wall of the water tank. In order to prevent the first drain port 14 and the second drain port 15 set at the bottom of the first water tank 1 from being blocked by sediment, an impermeable partition 3 is provided at the bottom of the first water tank 1 and the second water tank 2. The first water tank 1 and the second water tank 2 are installed in a natural tidal flat environment. The first water trough 1 and the second water trough 2 must be placed closely and horizontally side by side, and the first water trough 1 and the second water trough 2 are filled with undisturbed soil 16. The filled undisturbed soil 16 cannot have a slope, and the height of the undisturbed soil 16 is flush with the height of the water trough. At the same time, the filling should avoid the inside of the PVC pipe in the drainage device to ensure smooth drainage. After the device is set up, the water flows into through the vertically arranged fourth PVC pipe 4, fifth PVC pipe 5, sixth PVC pipe 6, and seventh PVC pipe 7, and then discharged through the first drain port 14 and the second drain port 15.

[0024] Working principle: When in use, first determine the style of the first water tank 1 according to the type and size of the salt marsh seedlings, and at the same time set a drainage pipe inside the first water tank 1. The drainage device is composed of 10 PVC pipes with the same diameter. The length and diameter of the PVC pipe can be determined according to the size of the water tank. The fourth PVC pipe 4, the fifth PVC pipe 5, the sixth PVC pipe 6, and the seventh PVC pipe 7 are each preset with two circular openings on the pipe wall, and the diameters of the above two circular openings are both 0.1 cm larger than the outer diameters of the eighth PVC pipe 8, the ninth PVC pipe 9, the tenth PVC pipe 10, the eleventh PVC pipe 11, the twelfth PVC pipe 12, and the thirteenth PVC pipe 13. A circular opening is preset on the pipe wall of the eleventh PVC pipe 11 and the twelfth PVC pipe 12, and the diameters of the above circular openings are both 0.1 cm larger than the outer diameters of the tenth PVC pipe 10 and the thirteenth PVC pipe 13. Among them, the eighth PVC pipe 8, the ninth PVC pipe 9, the tenth PVC pipe 10, and the thirteenth PVC pipe 13 do not need preset openings. The above 10 PVC pipes are connected to each other through the preset openings and placed inside the first water tank 1. The VC pipe 11 and the twelfth PVC pipe 12 are respectively connected to the first drain port 14 and the second drain port 15 preset on both sides of the short side of the first water tank 1. After the connection, the fourth PVC pipe 4, the fifth PVC pipe 5, the sixth PVC pipe 6, and the seventh PVC pipe 7 placed vertically should be flush with the side wall of the water tank. In order to prevent the first drain port 14 and the second drain port 15 set at the bottom of the first water tank 1 from being blocked by sediment, an impermeable partition 3 is provided at the bottom of the first water tank 1 and the second water tank 2. The first water tank 1 and the second water tank 2 are installed in a natural tidal flat environment. The first water trough 1 and the second water trough 2 must be placed closely and horizontally side by side, and the first water trough 1 and the second water trough 2 are filled with undisturbed soil 16. The filled undisturbed soil 16 cannot have a slope, and the height of the undisturbed soil 16 is flush with the height of the water trough. When filling, the inside of the PVC pipe in the drainage device should be avoided to ensure smooth drainage. After the device is set up, water flows into through the vertically arranged fourth PVC pipe 4, fifth PVC pipe 5, sixth PVC pipe 6, and seventh PVC pipe 7, and then is discharged through the first drain port 14 and the second drain port 15.

Claims

1. A device for evaluating the effect of surface drainage conditions on salt marsh seedling colonization in muddy tidal flats, comprising a drainage system and a non-drainage system, characterized in that: The drainage system is composed of a first water tank (1) and a drainage device, and the non-drainage system is composed of a second water tank (2). Two circular drainage openings are respectively provided on both sides of the short side of the first water tank (1) near the bottom of the water tank. The drainage device is composed of 10 PVC pipes of the same diameter. The length and diameter of the PVC pipes are determined according to the size of the water tank. The fourth PVC pipe (4), the fifth PVC pipe (5), the sixth PVC pipe (6), and the seventh PVC pipe (7) are each preset with two circular openings on the pipe wall. The diameters of the two circular openings are larger than those of the eighth PVC pipe (8), the ninth PVC pipe (9), the tenth PVC pipe (10), the eleventh PVC pipe (11), the twelfth PVC pipe (12), and the thirteenth PVC pipe ( 13) with an outer diameter of 0.1 cm, a circular opening is preset on the wall of each of the eleventh PVC tube (11) and the twelfth PVC tube (12), and the diameter of the circular opening is larger than the outer diameter of the tenth PVC tube (10) and the thirteenth PVC tube (13) by 0.1 cm, wherein the eighth PVC tube (8), the ninth PVC tube (9), the tenth PVC tube (10), and the thirteenth PVC tube (13) do not need to be preset with an opening, wherein the eleventh PVC tube (11) and the twelfth PVC tube (12) are respectively connected to the first drain port (14) and the second drain port (15) preset on both sides of the short side of the first water tank (1), and the above 10 PVC tubes are connected to each other through the preset openings and placed inside the first water tank (1).

2. The device for influencing the drainage conditions of muddy tidal flat surface on the planting of salt marsh seedlings according to claim 1, characterized in that: The fourth PVC pipe (4), the fifth PVC pipe (5), the sixth PVC pipe (6), and the seventh PVC pipe (7) placed vertically should be flush with the side wall of the sink.

3. The device for influencing the drainage conditions of muddy tidal flat surface on the planting of salt marsh seedlings according to claim 1, characterized in that: The bottom outer walls of the first water trough (1) and the second water trough (2) are both fixedly connected with a watertight partition (3) for preventing sediment from clogging the first drain outlet (14) and the second drain outlet (15) provided at the bottom of the first water trough (1).

4. The device for influencing the drainage conditions of muddy tidal flat surface on the colonization of salt marsh seedlings according to claim 1, characterized in that: The first water trough (1) and the second water trough (2) are both filled with tidal flat undisturbed soil (16), the undisturbed soil (16) being flush with the side walls of the water troughs. When filling, the undisturbed soil (16) should avoid the interior of the PVC pipe in the drainage device to ensure smooth drainage.

5. The device for influencing the drainage conditions of the muddy tidal flat surface on the planting of salt marsh seedlings according to claim 4, characterized in that: The second water trough (2) is not provided with an opening, and the undisturbed soil (16) inside the second water trough (2) and the undisturbed soil (16) buried in the first water trough (1) are taken from the same location and have completely identical physical and chemical properties.

6. The device for influencing the drainage conditions of the muddy tidal flat surface on the planting of salt marsh seedlings according to claim 5, characterized in that: The first water tank (1) is a rectangular water tank, and the specific size is determined according to the type and size of the salt marsh seedlings.

7. The device for influencing the drainage conditions of the muddy tidal flat surface on the planting of salt marsh seedlings according to claim 6, characterized in that: The first water trough (1) and the second water trough (2) are placed closely and horizontally side by side, and the second water trough (2) and the first water trough (1) are completely consistent in shape and size.

8. The device for influencing the drainage conditions of the muddy tidal flat surface on the planting of salt marsh seedlings according to claim 7, characterized in that: The first water tank (1) and the second water tank (2) are both made of PVC or organic glass.

Images