A system and method for improving biodiversity and comprehensive benefits in reservoir amplitude variation areas

Abstract

The present invention discloses a system and construction method for improving the biodiversity and comprehensive benefits of a reservoir's amplitude variation zone. The system includes a shore energy storage warehouse, a reservoir river channel, a reservoir bottom shoreline and a reservoir water surface. A fixed platform, a bottom-seated floating island platform and a non-bottom-seated floating island platform are arranged along the reservoir bottom shoreline; wherein the non-bottom-seated floating island platform is arranged in the deep water area of ​​the reservoir, and the bottom-seated floating island platform is arranged in the reservoir's water level amplitude variation zone. The platform of the system of the present invention is ensured by a vertical automatic control module to keep a relatively stable state at all times in a reservoir with a large water level variation. The present invention can solve the electricity consumption problem on the construction site by installing photovoltaic panels, transplanting plants, and installing bird habitats on the platform, on the one hand, generating electricity to partially solve the electricity consumption problem on the construction site, and on the other hand, provide living space for plants in the reservoir's flooded area by transplanting them in situ, maintain and even improve the local ecological diversity, and give full play to the comprehensive benefits of the reservoir.

Description

Technical Field

[0001] The present invention belongs to the technical field of ecological environmental protection of hydropower engineering, and more specifically, relates to a system and method for improving the biodiversity and comprehensive benefits of a reservoir amplitude variation zone. Background Art

[0002] my country is the country with the most reservoirs and dams in the world, with about 98,000 reservoirs. Reservoirs can play a role in flood control, irrigation, water supply, power generation, and improved navigation. As one of the common infrastructures in my country, reservoirs play a vital role in promoting economic development and improving people's livelihood.

[0003] Generally speaking, after the construction of a reservoir, the water level in the reservoir will rise, which will flood some areas on the upstream slopes. The plants in the reservoir flooded area will lose their living space due to the high water level. Therefore, how to ensure the survival of plants in the reservoir flooded area and reduce the disturbance of reservoir construction to the local ecology is an urgent problem to be solved. In addition, my country's southwest region is rich in hydropower resources, and a large number of water conservancy and hydropower projects have been planned and constructed. However, the flora and fauna in the southwest region are precious and diverse, and the ecological environment is fragile and complex. It is more important for my country's southwest region to minimize the impact on the environment during the construction of hydropower projects and the later ecological restoration.

[0004] On the other hand, in the process of building reservoir dams in remote areas of the southwest, due to the remote location, construction power supply generally requires the construction of new power supply infrastructure, which increases the construction cost and construction period. However, due to the high altitude and abundant light energy resources in the southwest of my country, it has become a more economical and technically mature way to partially solve the electricity problem by arranging photovoltaic facilities in the construction area to generate electricity. However, in general, the vegetation near the construction area is relatively rich and diverse, and finding a suitable area for laying photovoltaic facilities to avoid additional ecological disturbances is also an important issue that needs to be considered. Studies have found that arranging photovoltaic panels on the surface of the reservoir is a more reasonable choice.

[0005] Therefore, by arranging floating island platforms and fixed platforms on the reservoir surface, the water level fluctuation area of ​​the reservoir bank and the exposed bedrock area of ​​the reservoir slope, and installing photovoltaic panels, transplanting plants, and installing bird habitats on the platforms, on the one hand, power generation can be used to solve the electricity problem at the construction site, and on the other hand, on the other hand, a living space can be provided for plants in the reservoir inundation area through in-situ transplanting, thereby maintaining and even improving the local ecological diversity and giving full play to the comprehensive benefits of the reservoir. Summary of the invention

[0006] In view of the above defects or improvement needs of the prior art, the present invention proposes a system and method for improving the biodiversity and comprehensive benefits of the reservoir amplitude variation zone.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A system for improving the biodiversity and comprehensive benefits of a reservoir amplitude variation zone includes a shore energy storage warehouse, a reservoir river channel, a reservoir bottom shoreline and a reservoir water surface. Fixed platforms, bottom-seated floating island platforms and non-bottom-seated floating island platforms are arranged along the reservoir bottom shoreline; wherein the non-bottom-seated floating island platforms are arranged in the deep water area of ​​the reservoir, and the bottom-seated floating island platforms are arranged in the reservoir water level amplitude variation zone.

[0009] Furthermore, the platform pontoons of both the floating island platform without a bottom seat and the floating platform with a bottom seat are equipped with a vertical automatic control module, a friction and constant torque module, and a small battery energy storage module, wherein the vertical automatic control module includes a stainless steel stranded wire, the lower part of which is connected to an underwater counterweight, and the underwater counterweight is placed vertically above the shoreline of the reservoir. The vertical automatic control module, the friction and constant torque module work together to ensure that the floating island platform without a bottom seat and the floating island platform with a bottom seat always maintain a stable state and a relatively fixed position when the water level changes. The small battery energy storage module is used to temporarily store the photovoltaic power generation on the platform, and when the power is full, it is transported to the shore energy storage warehouse for centralized storage.

[0010] Furthermore, plant cultivation modules, bird habitats, intelligent spraying devices and hydrological monitoring sensors are arranged on the platform pontoons of the fixed platform, the floating island platform without a bottom seat or the floating platform with a bottom seat. The plant cultivation module is used for cultivating plants; the bird habitat is used for local birds to inhabit; the intelligent spraying device includes an intelligent spraying device nozzle, a water pump and a soil moisture monitor, which are used to automatically monitor the soil moisture content of the plant cultivation module and irrigate the plants when they are short of water; the hydrological monitoring sensor is used to monitor information such as the water level of the reservoir, the flow rate of the river, the ambient temperature and humidity.

[0011] Furthermore, photovoltaic panels are arranged on both sides of the non-bottomed floating island platform or the bottom-based floating platform for generating electricity, and the electricity can provide electricity for the construction and operation period of the reservoir area.

[0012] Furthermore, a trumpet-shaped conduit is provided at the lower part of the bottom-sitting floating island platform, bottom-sitting piles are provided on the river channel of the reservoir, and a platform column is provided on the upper part of the bottom-sitting piles. When the reservoir drops below the bottom-sitting piles, the trumpet-shaped conduit can be embedded in the platform column to ensure the stability of the bottom-sitting floating island platform.

[0013] A method for constructing a system for improving biodiversity and comprehensive benefits in a reservoir amplitude range comprises the following steps:

[0014] S1: Plan the layout, quantity and size of fixed platforms, bottom-supported floating island platforms and non-bottom-supported floating island platforms according to the scope of the bank inundation area, reservoir area and construction power demand;

[0015] S2: Use a radar water level gauge to measure the range of reservoir water level fluctuations, and determine the number and location of the bottom-supported floating island platform and the non-bottom-supported floating island platform;

[0016] S3: Determine the flooding range of the bank slope according to the fluctuation of the reservoir water level, and determine the number and location of the fixed platforms on the bank slope in combination with the exposed rock and soil range of the bank slope;

[0017] S4: Based on the determined number and size of platforms and the local sunshine conditions of the reservoir, design the size of the photovoltaic panels on the platforms, the capacity of the energy storage batteries, and the electrical energy storage capacity of the shoreside energy storage warehouse;

[0018] S5: Develop and cultivate soil according to the characteristics of plants within the flooded area of ​​the bank slope, and move the soil together with the plants within the flooded area of ​​the bank slope;

[0019] S6: Prefabricate the platform in the factory according to the types, sizes and quantities of the fixed platform, the bottom-supported floating island platform and the non-bottom-supported floating island platform that have been determined;

[0020] S7: Carry out the construction of shoreside energy storage warehouses and install large energy storage batteries;

[0021] S8: Before installing the fixed platform, piles are driven on the corresponding foundation of the bank slope in advance, the fixed platform is built on the piles, and then the bottom-seated floating island platform and the non-bottom-seated floating island platform are installed;

[0022] S9: Photovoltaic panels and small battery energy storage modules are installed on the fixed platform, the bottom-mounted floating island platform and the non-bottom-mounted floating island platform. Plant cultivation modules, bird habitats, intelligent spraying devices, and hydrological monitoring sensors are optional. Vertical automatic control modules are installed on the bottom-mounted floating island platform and the non-bottom-mounted floating island platform to ensure that the floating island platform always maintains a stable state when the water level changes, and avoids drifting everywhere;

[0023] S10: Perform system testing to check whether the photovoltaic panels, intelligent spraying devices, and hydrological monitoring sensors on the platform can operate normally;

[0024] S11: Conduct long-term health tracking of transplanted plants and check their growth; conduct long-term tracking of the battery energy storage operation in the shore energy storage warehouse to ensure the safe operation of the energy storage warehouse.

[0025] Furthermore, the non-bottomed floating island platform is arranged in the deep water area of ​​the reservoir and the non-dry area. During installation, the underwater counterweight is connected by stainless steel strands, and the weight of the underwater counterweight can be determined according to the flow rate of the reservoir and the size of the platform.

[0026] Furthermore, the bottom-seated floating island platform is arranged in the water level fluctuation area of ​​the reservoir. When the water level drops and the bank slope is exposed, the bottom-seated floating island platform is embedded on the pile platform to ensure the stability of the platform. During installation, the underwater fixed pile platform is connected by stainless steel wire rope.

[0027] Furthermore, the vertical automatic control module arranged on the floating island platform without bottom support and the floating island platform with bottom support mainly includes a friction device, a constant torque device and a steel strand winding device. When the water level rises or falls, the vertical automatic control module can control the speed and length of the steel strand winding device to retract and release the steel strand through the friction device and the constant torque device inside it, thereby ensuring that the platform always maintains a stable relative position.

[0028] Furthermore, the water pump in the intelligent spraying device is fixed inside the platform pontoon. When the soil moisture monitor detects that the humidity in the plant cultivation module is low, the water pump is automatically started to pump water and water the plants through the nozzles of the intelligent spraying device.

[0029] The system and method of the present invention have the following beneficial effects:

[0030] (1) The platform device has a simple structure and can be manufactured in a modular manner, which is relatively inexpensive. (2) It can be prefabricated in the factory before the construction of the reservoir and installed in a modular manner at the construction site, which is relatively simple. (3) The bottom-seated and non-bottom-seated floating island platforms can automatically maintain a relatively stable state when the water level of the reservoir changes, and will not drift around or capsize. (4) It can provide living space for plants and local birds in the flooded area of ​​the reservoir, thus maintaining the ecological diversity of the reservoir area. (5) The ecological platform can beautify the environment in areas without vegetation coverage on the reservoir bank. (6) The photovoltaic panels on the platform can generate electricity and store it in the energy storage warehouse on the shore to provide electricity for on-site construction machinery and engineering personnel. (7) The hydrological monitoring sensor module on the platform can monitor the temperature, humidity, and water flow rate of the reservoir area, helping on-site managers to monitor the operation of the reservoir in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the transverse river arrangement of the system of the present invention;

[0032] Figure 2 It is a top view schematic diagram of the system arrangement of the present invention;

[0033] Figure 3 This is a schematic diagram of a non-bottomed floating island platform of the present invention;

[0034] Figure 4 This is a schematic diagram of the bottom-sitting floating island platform of the present invention;

[0035] Figure 5 It is a schematic diagram of a fixed platform of the present invention.

[0036] In the figure, 1 is a shore energy storage warehouse, 2 is a reservoir river channel, 3 is a reservoir bottom bank, 4 is a reservoir water surface, 5 is a fixed platform, 6 is a bottom-seated floating island platform, 7 is a non-bottom-seated floating island platform, 8 is a platform pontoon, 9 is a steel wire, 10 is an underwater counterweight, 11 is a nozzle of an intelligent spraying device, 12 is an intelligent spraying device, 121 is a water pump, 122 is a soil moisture monitor, 13 is a plant cultivation module, 14 is a hydrological monitoring sensor, 15 is a bird habitat, 16 is a vertical automatic control module, 17 is a friction and constant torque module, 18 is a small battery energy storage module, 19 is a photovoltaic panel, 20 is a trumpet-shaped conduit, 21 is a column body on a bottom-seated pile, 22 is a bottom-seated pile, and 23 is a fixed pile column. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] According to an embodiment of the present invention, a system and method for improving biodiversity and comprehensive benefits in a reservoir amplitude variation zone are provided, such as Figures 1 to 4 As shown,

[0039] like Figure 1 and 2 As shown, a system for improving biodiversity and comprehensive benefits in a reservoir amplitude variation zone is provided, with shore energy storage warehouses 1 arranged on both sides of the reservoir, and fixed platforms 5, bottom-seated floating island platforms 6 and non-bottom-seated floating island platforms 7 are arranged in sequence along the reservoir river channel 2 and on the bottom bank 3 of the reservoir as appropriate; for the deep water area of ​​the reservoir where the water level will not drop to the bottom of the reservoir, the floating island platform will not sit on the bottom of the reservoir, and the non-bottom-seated floating island platform 7 can be arranged; for the reservoir water level amplitude variation zone, the floating island platform will sit on the bottom of the reservoir and the bank, and the bottom-seated floating island platform 6 can be arranged. The bottom-seated floating island platform 6 and the non-bottom-seated floating island platform 7 both float on the water surface 4 of the reservoir.

[0040] like Figure 3 As shown, the non-bottomed floating island platform 7 includes a platform pontoon 8, on which a vertical automatic control module 16 and a friction and constant torque module 17 are provided, and a small battery energy storage module 18 is arranged on the vertical automatic control module 16, wherein the vertical automatic control module 16 is connected to a stainless steel strand 9, and the lower part of the stainless steel strand 9 is connected to an underwater counterweight 10, and the underwater counterweight 10 is vertically placed above the bottom 3 of the reservoir.

[0041] The platform pontoon 8 is provided with a plant cultivation module 13 , a bird habitat 15 , an intelligent spraying device 12 and a hydrological monitoring sensor 14 , wherein the intelligent spraying device 12 includes an intelligent spraying device nozzle 11 , a water pump 121 and a soil moisture monitor 122 . In addition, photovoltaic panels 19 are arranged on both sides of the platform pontoon 8 .

[0042] Figure 3 In the figure, the vertical automatic control module 16 arranged on the platform pontoon 8 of the non-bottom-supported floating island platform 7 is connected to the stainless steel stranded wire 9, and the lower part of the stainless steel stranded wire 9 is connected to the underwater counterweight 10, which is vertically placed above the shoreline 3 of the reservoir bottom.

[0043] like Figure 4 As shown, the bottom-supported floating island platform 6 also includes a platform pontoon and a plant configuration module, a bird habitat, an intelligent spraying device, a hydrological monitoring sensor and other devices arranged on the platform pontoon. In addition, a trumpet-shaped conduit 20 is arranged at the bottom of the bottom-supported floating island platform 6, a bottom-supporting pile 22 is arranged on the reservoir river channel 2, a platform column 21 is arranged on the top of the bottom-supporting pile 22, and the trumpet-shaped conduit 20 can be embedded in the platform column 21.

[0044] like Figure 5 As shown, a fixed pile 23 is arranged at the lower part of the fixed platform 5 .

[0045] A method for constructing a system for improving biodiversity and comprehensive benefits in a reservoir amplitude variation zone, specifically comprising the following steps:

[0046] S1: Plan the layout, quantity and size of the fixed platform 5, the bottom-supported floating island platform 6 and the non-bottom-supported floating island platform 7 according to the scope of the bank slope inundation area, the reservoir area and the power demand for construction;

[0047] S2: Using a radar water level gauge to measure the range of reservoir water level fluctuation, and determining the number and location of the bottom-supported floating island platform 6 and the non-bottom-supported floating island platform 7;

[0048] S3: Determine the flooding range of the bank slope according to the fluctuation of the reservoir water level, and determine the number and position of the fixed platforms 5 on the bank slope in combination with the exposed rock and soil range of the bank slope;

[0049] S4: Design the size of the photovoltaic panels 19 on the platforms, the capacity of the energy storage batteries, and the electric energy storage capacity of the shore energy storage warehouse 1 according to the determined number and size of the platforms and the local sunshine conditions of the reservoir;

[0050] S5: Develop and cultivate soil according to the characteristics of plants within the flooded area of ​​the bank slope, and move the soil together with the plants within the flooded area of ​​the bank slope;

[0051] S6: Prefabricate the platforms in a factory according to the types, sizes and quantities of the fixed platform 5, the bottom-supported floating island platform 6 and the non-bottom-supported floating island platform 7 that have been determined;

[0052] S7: Carry out the construction of the shore energy storage warehouse 1 and install large energy storage batteries;

[0053] S8: Before installing the fixed platform 5, piles are driven on the foundation corresponding to the bank slope in advance, the fixed platform 5 is built on the piles, and then the bottom-seated floating island platform 6 and the non-bottom-seated floating island platform 7 are installed;

[0054] S9: Install photovoltaic panels 19, small battery energy storage modules 18, plant cultivation modules 13, bird habitats 15, intelligent spraying devices 14, and hydrological monitoring sensors 12 on the fixed platform 5, the bottom-mounted floating island platform 6, and the non-bottom-mounted floating island platform 7; install vertical automatic control modules 16 on the bottom-mounted floating island platform 6 and the non-bottom-mounted floating island platform 7 to ensure that the floating island platform always maintains a stable state when the water level changes, and avoids drifting everywhere;

[0055] S10: Perform system testing to check whether the photovoltaic panels 19, the intelligent spraying device 12, and the hydrological monitoring sensor 14 on the platform can operate normally;

[0056] S11: Conduct long-term health tracking of transplanted plants and check their growth conditions; conduct long-term tracking of the battery energy storage operation in the shore energy storage warehouse 1 to ensure the safe operation of the energy storage warehouse.

[0057] In this embodiment, the non-bottomed floating island platform 7 is arranged in the deep water area of ​​the reservoir and the non-dried area. During installation, it is connected to the underwater counterweight 10 through the stainless steel stranded wire 9. The weight of the underwater counterweight 10 can be determined according to the flow rate of the reservoir and the size of the platform.

[0058] In this embodiment, the bottom-seated floating island platform 6 is arranged in the water level variation area of ​​the reservoir. When the water level drops and the bank slope is exposed, the bottom-seated floating island platform 6 is embedded on the pile platform to ensure the stability of the platform. During installation, the underwater fixed pile platform is connected by stainless steel twisted wire.

[0059] In this embodiment, the vertical automatic control module arranged on the floating island platform without bottom support and the floating island platform with bottom support mainly includes a friction device, a constant torque device and a steel strand winding device. When the water level rises or falls, the vertical automatic control module can control the speed and length of the steel strand winding device to retract and release the steel strand through the friction device and the constant torque device inside it, thereby ensuring that the platform always maintains a stable relative position.

[0060] In this embodiment, the water pump 121 in the intelligent spraying device 12 is fixed inside the platform pontoon. When the soil moisture monitor 122 detects that the humidity in the plant cultivation module is low, the water pump 121 is automatically started to pump water and water the plants through the nozzle 11 of the intelligent spraying device.

[0061] It should be noted that, according to the needs of implementation, each step / component described in this application can be split into more steps / components, or two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention. It is easy for those skilled in the art to understand that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A system for improving biodiversity and comprehensive benefits in a reservoir amplitude variation zone, comprising a shore energy storage warehouse (1), a reservoir river channel (2), a reservoir bottom shoreline (3) and a reservoir water surface (4), characterized in that: A fixed platform (5), a bottom-seated floating island platform (6) and a non-bottom-seated floating island platform (7) are arranged along the reservoir bottom shoreline (3); the non-bottom-seated floating island platform (7) is arranged in the deep water area of ​​the reservoir, and the bottom-seated floating island platform (6) is arranged in the water level fluctuation area of ​​the reservoir; the non-bottom-seated floating island platform (7) or the bottom-seated floating island platform (6) both include a platform pontoon (8), and a vertical automatic control module (16), a friction resistance and constant torque module (17), and a small battery energy storage module (18) are arranged on the platform pontoon (8); a plant cultivation module (13), a bird habitat (15), an intelligent spraying device (12) and a hydrological monitoring sensor (14) are arranged on the platform pontoon (8) of the fixed platform (5), the non-bottom-seated floating island platform (7) or the bottom-seated floating island platform (6). ), the intelligent spraying device (12) comprises an intelligent spraying device nozzle (11), a water pump (121) and a soil moisture monitor (122); photovoltaic panels (19) are arranged on both sides of the platform pontoon (8); a trumpet-shaped conduit (20) is arranged at the lower part of the bottom-seated floating island platform (6); a bottom-seated platform pile (22) is arranged on the river channel (2) of the reservoir; a platform column body (21) is arranged at the upper part of the bottom-seated platform pile (22); the trumpet-shaped conduit (20) can be embedded in the platform column body (21); the vertical automatic control module (16) arranged on the platform pontoon (8) of the non-bottom-seated floating island platform (7) is connected to a stainless steel strand (9); the lower part of the stainless steel strand (9) is connected to an underwater counterweight (10); the underwater counterweight (10) is vertically placed above the reservoir bottom shoreline (3).

2. A method for constructing a system for improving biodiversity and comprehensive benefits in a reservoir amplitude range as claimed in claim 1, characterized in that: The following steps are involved: S1: Plan the layout, quantity and size of the fixed platform (5), the bottom-supported floating island platform (6) and the non-bottom-supported floating island platform (7) according to the scope of the bank slope inundation area, the reservoir area and the power demand for construction; S2: using a radar water level gauge to measure the range of water level fluctuation in the reservoir, and determining the number and position of the bottom-supported floating island platform (6) and the non-bottom-supported floating island platform (7); S3: Determine the flooding range of the bank slope according to the fluctuation of the reservoir water level, and determine the number and location of the fixed platform (5) on the bank slope in combination with the exposed rock and soil range of the bank slope; S4: Based on the determined number and size of the platforms and the local sunshine conditions of the reservoir, design the size of the photovoltaic panels (19) on the platforms, the capacity of the energy storage batteries, and the electrical energy storage capacity of the shoreside energy storage warehouse (1); S5: Develop and cultivate soil according to the characteristics of plants within the flooded area of ​​the bank slope, and move the soil together with the plants within the flooded area of ​​the bank slope; S6: Prefabricate the platforms in a factory according to the determined types, sizes and quantities of the fixed platform (5), the bottom-supported floating island platform (6) and the non-bottom-supported floating island platform (7); S7: constructing the shoreside energy storage warehouse (1) and installing a large energy storage battery; S8: Before installing the fixed platform (5), piles are driven in advance on the foundation corresponding to the bank slope, the fixed platform (5) is built on the piles, and then the bottom-supported floating island platform (6) and the non-bottom-supported floating island platform (7) are installed; S9: Installing the photovoltaic panels (19) and the small battery energy storage modules (18) on the fixed platform (5), the bottom-mounted floating island platform (6) and the non-bottom-mounted floating island platform (7), setting plant cultivation modules (13), bird habitats (15), intelligent spraying devices (12) and hydrological monitoring sensors (14), and installing vertical automatic control modules (16) on the bottom-mounted floating island platform (6) and the non-bottom-mounted floating island platform (7) to ensure that the floating island platform always maintains a stable state when the water level changes, and avoids drifting everywhere; S10: Performing a system test to check whether the photovoltaic panel (19), the intelligent spraying device (12), and the hydrological monitoring sensor (14) on the platform can operate normally; S11: Conducting long-term health tracking of the transplanted plants and checking their growth conditions; conducting long-term tracking of the battery energy storage operation conditions in the shore energy storage warehouse (1) to ensure safe operation of the energy storage warehouse.

3. The construction method according to claim 2, wherein the non-bottomed floating island platform (7) is arranged in a deep water area of ​​a reservoir and an area that does not dry up. During installation, the underwater counterweight (10) is connected via a stainless steel stranded wire (9), and the weight of the underwater counterweight (10) is determined according to the flow rate of the reservoir and the size of the platform.

4. The construction method according to claim 2, wherein the bottom-seated floating island platform (6) is arranged in the water level fluctuation area of ​​the reservoir, and when the water level drops and the bank slope is exposed, the bottom-seated floating island platform (6) is embedded on the pile platform to ensure the stability of the platform; during installation, the underwater fixed pile platform is connected by stainless steel twisted wire.

5. The construction method as claimed in claim 2, wherein the non-bottomed floating island platform (7) and the bottom-held floating island platform (6) are provided with a vertical automatic control module (16), a friction resistance and constant torque module (17) and a steel strand winding device, and when the water level rises or falls, the vertical automatic control module (16) controls the speed and length of the steel strand winding device for winding and releasing the steel strand through the friction resistance and constant torque module (17), thereby ensuring that the platform always maintains a stable relative position.

6. The construction method according to claim 2, wherein the water pump (121) in the intelligent spraying device (12) is fixed inside the platform pontoon, and when the soil moisture monitor (122) detects that the humidity in the plant cultivation module is low, the water pump (121) is automatically started to pump water, and the plants are watered through the nozzle (11) of the intelligent spraying device.

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