CN112723553A

CN112723553A - Multipurpose soilless planting ecological island and implementation method thereof

Info

Publication number: CN112723553A
Application number: CN202110033536.3A
Authority: CN
Inventors: 郑泽铭; 张卫; 李国强; 赵冬亮; 张波; 韩宝泉
Original assignee: Lingnan Water Group Co ltd
Current assignee: Lingnan Water Group Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-04-30

Abstract

The invention discloses a multipurpose soilless planting ecological island which comprises an emergent aquatic plant planting layer, a floating plant planting layer, a submerged plant planting layer, an A square steel structural column and a fixed ecological island basic structural member, wherein the emergent aquatic plant planting layer is connected with the floating plant planting layer through the A square steel structural column; meanwhile, an implementation method of the multipurpose soilless planting ecological island is also disclosed. The invention realizes the communication of water bodies at 360 degrees, ensures that the interior of the ecological island also plays a role in purifying the water bodies, can effectively improve the function of the ecological island in purifying the water bodies, increases the inhabitation space of animals in a limited space, and saves the limited space of a river channel or a wetland.

Description

Multipurpose soilless planting ecological island and implementation method thereof

Technical Field

The invention relates to a multipurpose soilless planting ecological island and an implementation method thereof, belonging to the technical field of water treatment.

Background

With the problems of poor river water quality, water body ecological degradation and the like caused by the hard construction of rivers in China, the close combination of hydraulic engineering and ecological restoration becomes the development trend of future river treatment, and in order to provide a proper growth environment for aquatic animals and plants in the rivers, increase the biological diversity of the rivers and enhance the self-cleaning capacity, an ecological island for plant growth and animal inhabitation is mainly built in a stacking mode at present. The ecological island is large in construction area, occupies a river channel space or wetland space with limited water capacity, only the surface of the ecological island plays a certain water body purification function and a function of providing habitats for animals and plants, the interior of the ecological island is firmly sealed, and the ecological island occupies the space but lacks functions.

Disclosure of Invention

The invention aims to provide a multipurpose soilless planting ecological island and a method for the multipurpose soilless planting ecological island, which realize 360-degree water body communication, enable the interior of the ecological island to play a water body purification role, effectively improve the water body purification function of the ecological island, increase the animal inhabitation space in a limited space and save the limited space of a river channel or a wetland.

In order to solve the technical problems, the invention adopts the following technical scheme: a multipurpose soilless planting ecological island comprises an emergent aquatic plant planting layer, a floating plant planting layer, a submerged plant planting layer, an A square steel structure column and a fixed ecological island foundation structure, wherein the emergent aquatic plant planting layer is connected with the floating plant planting layer through the A square steel structure column; the water body communication of 360 degrees is realized, the water body purification function is also exerted in the ecological island, and the water body purification function of the ecological island can be effectively improved.

According to the multipurpose soilless planting ecological island, the emergent aquatic plant planting layer comprises an A structure frame, a grid plate and an emergent aquatic plant planting pot, the A structure frame is connected with an A square steel structure column, the grid plate is connected with the A structure frame, the emergent aquatic plant planting pot is connected with the grid plate, an A base layer, an A main functional layer, an A covering layer and an emergent aquatic plant layer are sequentially arranged in the emergent aquatic plant planting pot from bottom to top, the emergent aquatic plant layer comprises reed, allium fistulosum, cattail, arundo donax or calamus, and an anticorrosive layer is coated on the A structure frame and the grid plate; a structure frame and A square steel structure post are connected and are made emergent aquatic plant layer of planting fix on the riverbed, the fixed emergent aquatic plant of grid plate plants the basin, A basic unit and A main functional layer purify the water, A overburden prevents A basic unit, A main functional layer and emergent aquatic plant layer are washed away by the water, influence purification performance, reed, the water shallot, cattail, the arundo donax or calamus root system is flourishing, the plant is upright and straight, the individual plant grows, certain water purification performance has, do benefit to the purification of water, it has the anticorrosive coating all to coat on A structure frame and the grid plate, prevent that A structure frame and grid plate are in humid environment for a long time and suffer the corruption, and the service life is shortened.

According to the multipurpose soilless planting ecological island, the floating plant planting layer comprises a B structure frame and an A steel wire basket, the B structure frame is connected with the A square steel structure column, the B structure frame is connected with the A steel wire basket, a B base layer, a B main functional layer, a B covering layer and a floating plant layer are sequentially arranged in the A steel wire basket from bottom to top, the floating plant layer comprises water lily, water hyacinth or sedum ramosum, and an anticorrosive layer is coated on the B structure frame and the A steel wire basket; b structural framework and A square steel structure column connection, make the floating plant the layer and fix on the riverbed, B structural framework is connected with A steel wire basket, can fix A steel wire basket and prevent to rock, B basic unit and B main functional layer purify the water, B overburden prevents B basic unit, B main functional layer and with the floating plant layer by the water washing away, influence purification performance, the water lily, water hyacinth or rain permanent flower have certain water purification performance, do benefit to the purification of water, it has the anticorrosive coating all to coat on B structural framework and the A steel wire basket, prevent that B structural framework and A steel wire basket are in moist environment for a long time and suffer the corruption, and the service life is shortened.

According to the multipurpose soilless planting ecological island, the submerged plant planting layer comprises a C structure frame and a B steel wire basket, the C structure frame is connected with a square steel structure column A, the C structure frame is connected with the B steel wire basket, a C base layer, a C main functional layer, a C covering layer and a submerged plant layer are sequentially arranged in the B steel wire basket from bottom to top, the submerged plant layer comprises golden fish algae, stonewort or raccoon beaver algae, and anticorrosive layers are coated on the C structure frame and the B steel wire basket; c structural framework is connected with A square steel structure post, make the submerged plant the layer and fix on the riverbed, C structural framework is connected with B steel wire mesh basket, can fix B steel wire mesh basket and prevent to rock, C basic unit and C main functional layer purify the water, C overburden prevents C basic unit, C main functional layer and submerged plant layer are washed away by the water, influence purification performance, goldfish algae, wheel algae or raccoon algae have certain water purification performance, do benefit to the purification of water, it has the anticorrosive coating all to coat on C structural framework and the B steel wire mesh basket, prevent that C structural framework and B steel wire mesh basket are in humid environment for a long time and suffer the corruption, and the service life is shortened.

The multipurpose soilless planting ecological island comprises an A structural frame, a B structural frame and a plurality of L-shaped steels, wherein the bottom ends of the B structural columns are connected with the top ends of the A structural columns, the L-shaped steels are connected end to form a closed rectangular frame, each L-shaped steel comprises an a plate and a B plate, the B structural columns are connected to the lower surface of the a plate at equal intervals, the top ends of the B structural columns are connected with the lower surface of the a plate, and the distance between every two adjacent B structural columns is 2000-4000 mm; a plurality of rectangular holes are formed in the grid plate at equal intervals, and the grid plate is connected with the upper surface of the plate a; the lower part of the emergent aquatic plant planting pot is arranged in a rectangular hole in a penetrating mode, the outer edge of the opening of the emergent aquatic plant planting pot is connected with the upper surface of the rectangular hole, and a plurality of small holes are formed in the emergent aquatic plant planting pot at equal intervals; the A base layer comprises natural rocks with the diameter of 40-60mm, and the A base layer has the thickness of 200-400 mm; the main functional layer A comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are all 40-60mm, and the thickness of the main functional layer A is 400-600 mm; the covering layer A comprises coarse gravel with the diameter of 50-70mm, and the thickness of the covering layer A is 200-400 mm; the top end of the B square steel structure column is connected with the lower surface of the a plate, so that the emergent aquatic plant planting layer is fixed on a river bed, the grid plate is connected with the upper surface of the a plate, the grid plate is fixedly connected with the L-shaped steel, the B plate plays a limiting role on the grid plate, the grid plate is stably connected with the L-shaped steel, a plurality of rectangular holes are formed in the grid plate at equal intervals, the lower part of an emergent aquatic plant planting pot is arranged in a penetrating mode through the rectangular holes, standard planting is facilitated, single plant planting of the emergent aquatic plant planting pot is achieved, earthwork is not generated, withered plants can be taken out for replacement without intercepting water, a plurality of small holes are formed in the emergent aquatic plant planting pot at equal intervals, the emergent aquatic plant roots are well-developed and can penetrate through the bottoms and the surrounding small holes of the planting unit pot, a filter screen is woven in water, the contact area of the roots and the water is increased, and the loss of pollutants, the settlement is realized, meanwhile, the net woven by root systems can also provide habitat for aquatic animals, the natural rock has polygonal corners and rough surfaces, is favorable for removing phosphorus elements in water, the ceramsite has rough surfaces, porous interiors and large surface area, is favorable for the attachment growth of organisms, and has good removal effect on ammonia nitrogen elements in water, the zeolite structure consists of silicon-oxygen tetrahedrons, cavities and pore canals with pores in the framework have adsorptivity and ion exchange property, can quickly intercept ammonia nitrogen in sewage, the pores are large, the adsorption capacity of zeolite with loose structure and uniform distribution is high, and adsorption saturated attachment sites can be regenerated through the synergistic effect of plants and microorganisms, the zeolite is cheap and easy to obtain, and is favorable for large-area use, the slag filler contains rich calcium and magnesium components, and has good adsorption effect on phosphorus in sewage, the coarse gravel is a filler with a good sewage treatment effect, the removal amount of phosphorus elements and chemical oxygen demand can reach 95%, the coarse gravel prevents the packing on the lower layer and the layer of the emergent aquatic plants from being washed away by water, and the coarse gravel also has the function of intercepting pollutants.

According to the multipurpose soilless planting ecological island, the structural frame B comprises a plurality of C square steel structural columns, the bottom ends of the C square steel structural columns are connected with the top ends of the A square steel structural columns, the C square steel structural columns are connected to the side wall of the A steel wire basket at equal intervals, and the distance between every two adjacent C square steel structural columns is 2000-4000 mm; the B base layer comprises natural rocks with the diameter of 40-60mm, and the thickness of the B base layer is 100-150 mm; the main functional layer B comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are all 40-60mm, and the thickness of the main functional layer B is 200-300 mm; the covering layer B comprises coarse gravel with the diameter of 50-70mm, and the thickness of the covering layer B is 100-150 mm; the bottom end of the C square steel structure column is connected with the top end of the A square steel structure column, so that a floating plant planting layer is fixed on a riverbed, a plurality of C square steel structure columns are equidistantly connected to the side wall of the A steel wire basket at intervals, the A steel wire basket can be fixed to prevent shaking, the natural rock has polygonal corners and rough surfaces, phosphorus elements in a water body in the water body can be removed, ceramsite is rough in surface, porous in the interior, large in surface area and favorable for attachment growth of organisms, the ammonia nitrogen elements in the water body can be well removed, the zeolite structure is composed of tetrahedrons, cavities and channels with holes in the framework have adsorptivity and ion exchange performance, the ammonia nitrogen in the sewage can be rapidly intercepted, the holes are large, the adsorption capacity of the zeolite with loose structure and uniform distribution is high, attachment sites after adsorption saturation can be regenerated through the synergistic effect of plants and microorganisms, the zeolite is cheap, The slag filler is easy to obtain and beneficial to large-area use, contains rich calcium and magnesium components, has good adsorption effect on phosphorus in sewage, is a filler with better sewage treatment effect, can remove phosphorus elements and chemical oxygen demand by 95 percent, prevents a floating plant layer and a lower layer of filler from being washed away by water by coarse gravel, and also has the function of intercepting pollutants.

According to the multipurpose soilless planting ecological island, the C-shaped structural frame comprises a plurality of D square steel structural columns, the bottom ends of the D square steel structural columns are connected with the top ends of the A square steel structural columns, the D square steel structural columns are connected to the side wall of the B steel wire basket at equal intervals, and the distance between every two adjacent D square steel structural columns is 2000-4000 mm; the C base layer comprises natural rocks with the diameter of 40-60mm, and the thickness of the C base layer is 100-150 mm; the main functional layer C comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are all 40-60mm, and the thickness of the main functional layer C is 300 mm; the C covering layer comprises coarse gravel with the diameter of 50-70mm, and the thickness of the C covering layer is 100-150 mm; the bottom end of the D square steel structure column is connected with the top end of the A square steel structure column, so that the submerged plant planting layer is fixed on the riverbed, a plurality of D square steel structure columns are equidistantly connected to the side wall of the B steel wire basket at intervals, the B steel wire basket can be fixed to prevent shaking, the natural rock has polygonal corners and rough surfaces, phosphorus elements in the water body can be removed, the ceramsite has rough surfaces, multiple holes inside, large surface area and good biological adhesion growth, the ammonia nitrogen elements in the water body can be well removed, the zeolite structure is composed of tetrahedrons, cavities and channels with holes in the framework have adsorptivity and ion exchange property, the ammonia nitrogen in the sewage can be rapidly intercepted, the holes are large, the adsorption capacity of the zeolite with loose structure and uniform distribution is high, the adsorption sites after adsorption saturation can be regenerated through the synergistic effect of plants and microorganisms, the zeolite is cheap, and the water is used for removing the phosphorus in the, The slag filler is easy to obtain and beneficial to large-area use, contains rich calcium and magnesium components, has good adsorption effect on phosphorus in sewage, is a filler with better sewage treatment effect, can remove phosphorus elements and chemical oxygen demand by 95 percent, prevents a submerged plant layer and a lower layer of filler from being washed away by water by coarse gravel, and also has the function of intercepting pollutants.

According to the multipurpose soilless planting ecological island, the A square steel structural column and the fixed ecological island basic structural member are coated with the anticorrosive layers; prevent A square steel structure post and fixed ecological island foundation structure spare to be in the humid environment for a long time and suffer corrosion, shorten life.

An implementation method of a multipurpose soilless planting ecological island comprises the following steps:

s1, arranging anti-corrosion materials on the A square steel structural column, the fixed ecological island foundation structural member, the A structural frame, the grid plate, the B structural frame, the A steel wire mesh basket, the C structural frame and the B steel wire mesh basket;

s2, fixedly mounting the fixed ecological island foundation structural member on a riverbed, and fixedly mounting the A square steel structural column on the fixed ecological island foundation structural member;

s3, fixedly connecting the bottom end of the B-square steel structural column with the top end of the A-square steel structural column, connecting a plurality of L-shaped steels end to form a closed rectangular frame, fixedly connecting the top end of the B-square steel structural column with the lower surface of the a plate, and fixedly connecting the grid plate with the upper surface of the a plate; paving natural rock with the thickness of 200-400mm at the bottom of the emergent aquatic plant planting pot, then paving a main functional layer A with the thickness of 400-600mm, wherein the main functional layer A is prepared by mixing ceramsite, zeolite and slag filler according to the proportion of 1:2:1, then paving coarse gravel with the thickness of 200-400mm, planting an emergent aquatic plant layer on the coarse gravel, installing the emergent aquatic plant planting pot with the emergent aquatic plant layer in the rectangular hole, and placing the bottom of the emergent aquatic plant planting pot in water;

s4, fixedly connecting the bottom end of the C square steel structure column with the top end of the A square steel structure column, fixedly connecting the side face of the C square steel structure column with the side wall of the A steel wire basket, paving 150mm thick natural rocks at the bottom of the A steel wire basket, paving 300mm thick B main functional layers, wherein the B main functional layers are prepared by mixing ceramsite, zeolite and slag filler according to the proportion of 1:2:1, paving 150mm thick gravel with the thickness of 100-;

s5, fixedly connecting the bottom end of the D square steel structure column with the top end of the A square steel structure column, fixedly connecting the side face of the D square steel structure column with the side wall of the B steel wire mesh basket, paving 150mm thick natural rocks at the bottom of the B steel wire mesh basket, paving 300mm thick C main functional layers, wherein the C main functional layers are prepared by mixing ceramsite, zeolite and slag filler according to the proportion of 1:2:1, paving 150mm thick gravel with the thickness of 100, and planting a submerged plant layer on the thick gravel to enable the submerged plant layer to sink to the water bottom.

Compared with the prior art, the invention realizes the communication of water bodies at 360 degrees, ensures that the interior of the ecological island also plays a role in purifying the water bodies, can effectively improve the function of the ecological island in purifying the water bodies, increases the inhabitation space of animals in a limited space, saves the limited space of a river channel or a wetland, and realizes the multipurpose soilless planting ecological island. The ecological island is overhead at the bottom, adopts a frame structure and is submerged in water. The invention fully utilizes the characteristics of the frame structure such as permeability, light structure, small blocking area, good water permeability and the like. The water body can freely circulate at the bottom, around and in the ecological island, resistance brought by water flow supplied to the island body is reduced, and the influence of fluctuation of the island body caused by water flow change is favorably prevented. The invention comprises an emergent aquatic plant planting layer, a floating plant planting layer and a submerged plant planting layer. According to the characteristics of plants, each planting layer adopts different structural forms. The planting layer below is built on stilts, and the developed aquatic plant's of root system can pass the hole growth, weaves into the filter screen in aqueous, increases the area of contact of root system and water, prevents the loss of the pollutant of aquatic and suspended particles thing, makes it subside, and aquatic plant passes through photosynthesis simultaneously, passes through root system release with partly oxygen in the water, increases the oxygen content of water. Because the soil does not bind the root system, the water flow can bring oxygen to other anoxic areas, so that the oxygen content of the water body is more uniform, the growth and the propagation of microorganisms in the root area are enhanced, the decomposition of the aerobic organisms on organic matters is promoted, and a good water purification effect is achieved. In addition, in the process of growth of the aquatic plants, a large amount of nutrient substances such as nitrogen, phosphorus and the like are needed, the water-permeable water-saving water purification device is of a frame structure, has good water permeability, enables the plants to be fully contacted with a water body, improves the absorption of the nitrogen, phosphorus and other substances in the water body by the plants, and is beneficial to purifying organic matters in the water body, thereby improving the water body purification rate. The ecological island is of a frame structure, so that the volume of the ecological island is reduced, the limited river channel space or wetland space is saved, the water capacity is increased, meanwhile, the aerial space at the bottom of the ecological island is also increased, and the aquatic animal inhabiting space is increased, thereby being beneficial to the ecological restoration of the water environment.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of A of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic structural view of a grid plate, an emergent aquatic plant planting pot, L-shaped steel, rectangular holes and small holes in the invention;

fig. 4 is a schematic structural view of an emergent aquatic plant planting pot according to the present invention.

Reference numerals: 1-emerging plant growing layer, 2-floating plant growing layer, 3-submerged plant growing layer, 4-A square steel structural column, 5-fixed ecological island foundation structure, 6-riverbed, 7-A structural frame, 8-grid plate, 9-emerging plant growing pot, 10-A foundation layer, 11-A main functional layer, 12-A cover layer, 13-emerging plant layer, 14-B structural frame, 15-A steel wire basket, 16-B foundation layer, 17-B main functional layer, 18-B cover layer, 19-floating plant layer, 20-C structural frame, 21-B steel wire basket, 22-C foundation layer, 23-C main functional layer, 24-C cover layer, 25-submerged plant layer, 26-B square steel structural column, 27-L-shaped steel, 28-a plates, 29-b plates, 30-rectangular holes, 31-small holes, 32-natural rocks, 33-coarse gravels, 34-C square steel structural columns and 35-D square steel structural columns.

The invention is further described with reference to the following figures and detailed description.

Detailed Description

Example 1 of the invention: a multipurpose soilless planting ecological island comprises an emergent aquatic plant planting layer 1, a floating plant planting layer 2, a submerged plant planting layer 3, an A square steel structural column 4 and a fixed ecological island foundation structure 5, wherein the emergent aquatic plant planting layer 1 is connected with the floating plant planting layer 2 through the A square steel structural column 4, the floating plant planting layer 2 is connected with the submerged plant planting layer 3 through the A square steel structural column 4, the A square steel structural column 4 is connected with the fixed ecological island foundation structure 5, and the fixed ecological island foundation structure 5 is connected with a river bed 6; the water body communication of 360 degrees is realized, the water body purification function is also exerted in the ecological island, and the water body purification function of the ecological island can be effectively improved.

Example 2 of the invention: a multipurpose soilless planting ecological island comprises an emergent aquatic plant planting layer 1, a floating plant planting layer 2, a submerged plant planting layer 3, an A square steel structural column 4 and a fixed ecological island foundation structure 5, wherein the emergent aquatic plant planting layer 1 is connected with the floating plant planting layer 2 through the A square steel structural column 4, the floating plant planting layer 2 is connected with the submerged plant planting layer 3 through the A square steel structural column 4, the A square steel structural column 4 is connected with the fixed ecological island foundation structure 5, and the fixed ecological island foundation structure 5 is connected with a river bed 6; the water body communication of 360 degrees is realized, so that the interior of the ecological island also plays a role in purifying the water body, and the water body purifying function of the ecological island can be effectively improved; the emergent aquatic plant planting layer 1 comprises an A structure frame 7, a grid plate 8 and an emergent aquatic plant planting pot 9, the A structure frame 7 is connected with an A square steel structure column 4, the grid plate 8 is connected with the A structure frame 7, the emergent aquatic plant planting pot 9 is connected with the grid plate 8, an A base layer 10, an A main functional layer 11, an A covering layer 12 and an emergent aquatic plant layer 13 are sequentially arranged in the emergent aquatic plant planting pot 9 from bottom to top, the emergent aquatic plant layer 13 comprises reeds, water shallots, cattails, arums or calamus, and anticorrosive layers are coated on the A structure frame 7 and the grid plate 8; a structural framework 7 is connected with A square steel structural column 4 to make emergent aquatic plant layer 1 fix on riverbed 6, emergent aquatic plant basin 9 is fixed to grid plate 8, A basic unit 10 and A main functional layer 11 purify the water, A overburden 12 prevents A basic unit 10, A main functional layer 11 and emergent aquatic plant layer 13 from being washed away by the water, influence purification performance, reed, water shallot, cattail, arundo or calamus root system, the plant is upright and straight, the individual plant grows, certain water purification performance has, do benefit to the purification of water, A structural framework 7 and grid plate 8 all coat and have the anticorrosive coating, prevent that A structural framework 7 and grid plate 8 are in humid environment for a long time and suffer the corruption, shorten flourishing life.

Example 3 of the invention: a multipurpose soilless planting ecological island comprises an emergent aquatic plant planting layer 1, a floating plant planting layer 2, a submerged plant planting layer 3, an A square steel structural column 4 and a fixed ecological island foundation structure 5, wherein the emergent aquatic plant planting layer 1 is connected with the floating plant planting layer 2 through the A square steel structural column 4, the floating plant planting layer 2 is connected with the submerged plant planting layer 3 through the A square steel structural column 4, the A square steel structural column 4 is connected with the fixed ecological island foundation structure 5, and the fixed ecological island foundation structure 5 is connected with a river bed 6; the water body communication of 360 degrees is realized, so that the interior of the ecological island also plays a role in purifying the water body, and the water body purifying function of the ecological island can be effectively improved; the emergent aquatic plant planting layer 1 comprises an A structure frame 7, a grid plate 8 and an emergent aquatic plant planting pot 9, the A structure frame 7 is connected with an A square steel structure column 4, the grid plate 8 is connected with the A structure frame 7, the emergent aquatic plant planting pot 9 is connected with the grid plate 8, an A base layer 10, an A main functional layer 11, an A covering layer 12 and an emergent aquatic plant layer 13 are sequentially arranged in the emergent aquatic plant planting pot 9 from bottom to top, the emergent aquatic plant layer 13 comprises reeds, water shallots, cattails, arums or calamus, and anticorrosive layers are coated on the A structure frame 7 and the grid plate 8; the A structural frame 7 is connected with the A square steel structural column 4 to enable an emergent aquatic plant planting layer 1 to be fixed on a river bed 6, a grid plate 8 is used for fixing an emergent aquatic plant planting pot 9, the A basic layer 10 and the A main functional layer 11 purify water, the A covering layer 12 prevents the A basic layer 10, the A main functional layer 11 and an emergent aquatic plant layer 13 from being washed away by the water and affecting the purification function, the root systems of reed, allium fistulosum, cattail, arundo donax linn or calamus, plants are tall and straight and grow singly, a certain water purification function is achieved, the purification of the water is facilitated, an anticorrosive layer is coated on the A structural frame 7 and the grid plate 8, the A structural frame 7 and the grid plate 8 are prevented from being corroded due to the fact that the A structural frame 7 and the grid plate 8 are in a; the floating plant planting layer 2 comprises a B structure frame 14 and an A steel wire basket 15, the B structure frame 14 is connected with the A square steel structure column 4, the B structure frame 14 is connected with the A steel wire basket 15, a B base layer 16, a B main functional layer 17, a B covering layer 18 and a floating plant layer 19 are sequentially arranged in the A steel wire basket 15 from bottom to top, the floating plant layer 19 comprises water lily, water hyacinth or sedentada, and an anticorrosive layer is coated on the B structure frame 14 and the A steel wire basket 15; b structural framework 14 is connected with A square steel structure post 4, make the plant of floating water plant layer 2 fix on riverbed 6, B structural framework 14 is connected with A wire mesh basket 15, can fix A wire mesh basket 15 and prevent to rock, B basic unit 16 and the main functional layer 17 of B purify the water, B overburden 18 prevents B basic unit 16, B main functional layer 17 and floating water plant layer 19 are washed away by the water, influence purification performance, water lily, water hyacinth or rain permanent flower have certain water purification performance, do benefit to the purification of water, B structural framework 14 and the last equal coating of A wire mesh basket 15 have the anticorrosive coating, prevent that B structural framework 14 and A wire mesh basket 15 are in humid environment for a long time and suffer the corruption, shorten life.

Example 4 of the invention: a multipurpose soilless planting ecological island comprises an emergent aquatic plant planting layer 1, a floating plant planting layer 2, a submerged plant planting layer 3, an A square steel structural column 4 and a fixed ecological island foundation structure 5, wherein the emergent aquatic plant planting layer 1 is connected with the floating plant planting layer 2 through the A square steel structural column 4, the floating plant planting layer 2 is connected with the submerged plant planting layer 3 through the A square steel structural column 4, the A square steel structural column 4 is connected with the fixed ecological island foundation structure 5, and the fixed ecological island foundation structure 5 is connected with a river bed 6; the water body communication of 360 degrees is realized, so that the interior of the ecological island also plays a role in purifying the water body, and the water body purifying function of the ecological island can be effectively improved; the emergent aquatic plant planting layer 1 comprises an A structure frame 7, a grid plate 8 and an emergent aquatic plant planting pot 9, the A structure frame 7 is connected with an A square steel structure column 4, the grid plate 8 is connected with the A structure frame 7, the emergent aquatic plant planting pot 9 is connected with the grid plate 8, an A base layer 10, an A main functional layer 11, an A covering layer 12 and an emergent aquatic plant layer 13 are sequentially arranged in the emergent aquatic plant planting pot 9 from bottom to top, the emergent aquatic plant layer 13 comprises reeds, water shallots, cattails, arums or calamus, and anticorrosive layers are coated on the A structure frame 7 and the grid plate 8; the A structural frame 7 is connected with the A square steel structural column 4 to enable an emergent aquatic plant planting layer 1 to be fixed on a river bed 6, a grid plate 8 is used for fixing an emergent aquatic plant planting pot 9, the A basic layer 10 and the A main functional layer 11 purify water, the A covering layer 12 prevents the A basic layer 10, the A main functional layer 11 and an emergent aquatic plant layer 13 from being washed away by the water and affecting the purification function, the root systems of reed, allium fistulosum, cattail, arundo donax linn or calamus, plants are tall and straight and grow singly, a certain water purification function is achieved, the purification of the water is facilitated, an anticorrosive layer is coated on the A structural frame 7 and the grid plate 8, the A structural frame 7 and the grid plate 8 are prevented from being corroded due to the fact that the A structural frame 7 and the grid plate 8 are in a; the floating plant planting layer 2 comprises a B structure frame 14 and an A steel wire basket 15, the B structure frame 14 is connected with the A square steel structure column 4, the B structure frame 14 is connected with the A steel wire basket 15, a B base layer 16, a B main functional layer 17, a B covering layer 18 and a floating plant layer 19 are sequentially arranged in the A steel wire basket 15 from bottom to top, the floating plant layer 19 comprises water lily, water hyacinth or sedentada, and an anticorrosive layer is coated on the B structure frame 14 and the A steel wire basket 15; the B structural framework 14 is connected with the A square steel structural column 4, so that the floating plant planting layer 2 is fixed on the riverbed 6, the B structural framework 14 is connected with the A steel wire mesh basket 15, the A steel wire mesh basket 15 can be fixed to prevent shaking, the B basic layer 16 and the B main functional layer 17 purify water, the B covering layer 18 prevents the B basic layer 16, the B main functional layer 17 and the floating plant layer 19 from being washed away by the water and affecting the purification function, water lily, water hyacinth or long-standing flower has a certain water purification function and is beneficial to water purification, and anti-corrosion layers are coated on the B structural framework 14 and the A steel wire mesh basket 15 to prevent the B structural framework 14 and the A steel wire mesh basket 15 from being corroded due to long-term wet environment and shorten the service life; the submerged plant planting layer 3 comprises a C structure frame 20 and a B steel wire basket 21, the C structure frame 20 is connected with the A square steel structure column 4, the C structure frame 20 is connected with the B steel wire basket 21, a C base layer 22, a C main functional layer 23, a C covering layer 24 and a submerged plant layer 25 are sequentially arranged in the B steel wire basket 21 from bottom to top, the submerged plant layer 25 comprises golden fish algae, verticillium dahliae or raccoon coypus, and anticorrosive layers are coated on the C structure frame 20 and the B steel wire basket 21; c structural framework 20 is connected with A square steel structural column 4, make the submerged plant layer 3 fix on riverbed 6, C structural framework 20 is connected with B wire mesh basket 21, can fix B wire mesh basket 21 and prevent to rock, C basic layer 22 and the main functional layer 23 of C purify the water, C overburden 24 prevents that C basic layer 22, the main functional layer 23 of C and submerged plant layer 25 from being washed away by the water, influence purification performance, goldfish algae, wheel algae or raccoon have certain water purification performance, do benefit to the purification of water, C structural framework 20 and B wire mesh basket 21 all coat and have the anticorrosive coating, prevent that C structural framework 20 and B wire mesh basket 21 are in humid environment for a long time and suffer the corruption, shorten life.

Example 5 of the invention: a multipurpose soilless planting ecological island comprises an emergent aquatic plant planting layer 1, a floating plant planting layer 2, a submerged plant planting layer 3, an A square steel structural column 4 and a fixed ecological island foundation structure 5, wherein the emergent aquatic plant planting layer 1 is connected with the floating plant planting layer 2 through the A square steel structural column 4, the floating plant planting layer 2 is connected with the submerged plant planting layer 3 through the A square steel structural column 4, the A square steel structural column 4 is connected with the fixed ecological island foundation structure 5, and the fixed ecological island foundation structure 5 is connected with a river bed 6; the water body communication of 360 degrees is realized, so that the interior of the ecological island also plays a role in purifying the water body, and the water body purifying function of the ecological island can be effectively improved; the emergent aquatic plant planting layer 1 comprises an A structure frame 7, a grid plate 8 and an emergent aquatic plant planting pot 9, the A structure frame 7 is connected with an A square steel structure column 4, the grid plate 8 is connected with the A structure frame 7, the emergent aquatic plant planting pot 9 is connected with the grid plate 8, an A base layer 10, an A main functional layer 11, an A covering layer 12 and an emergent aquatic plant layer 13 are sequentially arranged in the emergent aquatic plant planting pot 9 from bottom to top, the emergent aquatic plant layer 13 comprises reeds, water shallots, cattails, arums or calamus, and anticorrosive layers are coated on the A structure frame 7 and the grid plate 8; the A structural frame 7 is connected with the A square steel structural column 4 to enable an emergent aquatic plant planting layer 1 to be fixed on a river bed 6, a grid plate 8 is used for fixing an emergent aquatic plant planting pot 9, the A basic layer 10 and the A main functional layer 11 purify water, the A covering layer 12 prevents the A basic layer 10, the A main functional layer 11 and an emergent aquatic plant layer 13 from being washed away by the water and affecting the purification function, the root systems of reed, allium fistulosum, cattail, arundo donax linn or calamus, plants are tall and straight and grow singly, a certain water purification function is achieved, the purification of the water is facilitated, an anticorrosive layer is coated on the A structural frame 7 and the grid plate 8, the A structural frame 7 and the grid plate 8 are prevented from being corroded due to the fact that the A structural frame 7 and the grid plate 8 are in a; the floating plant planting layer 2 comprises a B structure frame 14 and an A steel wire basket 15, the B structure frame 14 is connected with the A square steel structure column 4, the B structure frame 14 is connected with the A steel wire basket 15, a B base layer 16, a B main functional layer 17, a B covering layer 18 and a floating plant layer 19 are sequentially arranged in the A steel wire basket 15 from bottom to top, the floating plant layer 19 comprises water lily, water hyacinth or sedentada, and an anticorrosive layer is coated on the B structure frame 14 and the A steel wire basket 15; the B structural framework 14 is connected with the A square steel structural column 4, so that the floating plant planting layer 2 is fixed on the riverbed 6, the B structural framework 14 is connected with the A steel wire mesh basket 15, the A steel wire mesh basket 15 can be fixed to prevent shaking, the B basic layer 16 and the B main functional layer 17 purify water, the B covering layer 18 prevents the B basic layer 16, the B main functional layer 17 and the floating plant layer 19 from being washed away by the water and affecting the purification function, water lily, water hyacinth or long-standing flower has a certain water purification function and is beneficial to water purification, and anti-corrosion layers are coated on the B structural framework 14 and the A steel wire mesh basket 15 to prevent the B structural framework 14 and the A steel wire mesh basket 15 from being corroded due to long-term wet environment and shorten the service life; the submerged plant planting layer 3 comprises a C structure frame 20 and a B steel wire basket 21, the C structure frame 20 is connected with the A square steel structure column 4, the C structure frame 20 is connected with the B steel wire basket 21, a C base layer 22, a C main functional layer 23, a C covering layer 24 and a submerged plant layer 25 are sequentially arranged in the B steel wire basket 21 from bottom to top, the submerged plant layer 25 comprises golden fish algae, verticillium dahliae or raccoon coypus, and anticorrosive layers are coated on the C structure frame 20 and the B steel wire basket 21; the C structure frame 20 is connected with the A square steel structure column 4, so that the submerged plant planting layer 3 is fixed on the riverbed 6, the C structure frame 20 is connected with the B steel wire mesh basket 21, the B steel wire mesh basket 21 can be fixed to prevent shaking, the C base layer 22 and the C main functional layer 23 purify water, the C covering layer 24 prevents the C base layer 22, the C main functional layer 23 and the submerged plant layer 25 from being washed away by the water to influence the purification function, the hornworts, the WHEELS or the nutria have certain water purification function and are beneficial to the purification of the water, the C structure frame 20 and the B steel wire mesh basket 21 are coated with anti-corrosion layers to prevent the C structure frame 20 and the B steel wire mesh basket 21 from being corroded due to being in a humid environment for a long time, and the service life is shortened; the A structural frame 7 comprises a plurality of B square steel structural columns 26 and a plurality of L-shaped steels 27, the bottom ends of the B square steel structural columns 26 are connected with the top ends of the A square steel structural columns 4, the L-shaped steels 27 are connected end to form a closed rectangular frame, each L-shaped steel 27 comprises an a plate 28 and a B plate 29, the B square steel structural columns 26 are connected to the lower surfaces of the a plates 28 at equal intervals, the top ends of the B square steel structural columns 26 are connected with the lower surfaces of the a plates 28, and the distance between every two adjacent B square steel structural columns 26 is 2000-4000 mm; a plurality of rectangular holes 30 are arranged on the grid plate 8 at equal intervals, and the grid plate 8 is connected with the upper surface of the a plate 28; the lower part of the emergent aquatic plant planting pot 9 is arranged in a penetrating manner through the rectangular hole 30, the outer edge of the opening of the emergent aquatic plant planting pot 9 is connected with the upper surface of the rectangular hole 30, and a plurality of small holes 31 are formed in the emergent aquatic plant planting pot 9 at equal intervals; the A base layer 10 comprises natural rocks 32 with the diameter of 40-60mm, and the A base layer 10 is 200-400mm thick; the main functional layer A11 comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are all 40-60mm, and the thickness of the main functional layer A11 is 400-600 mm; the A-coating 12 comprises coarse gravel 33 with the diameter of 50-70mm, and the A-coating 12 has the thickness of 200-400 mm; the top end of a B square steel structure column 26 is connected with the lower surface of an a plate 28, so that an emergent aquatic plant planting layer 1 is fixed on a river bed 6, a grid plate 8 is connected with the upper surface of the a plate 28, the grid plate 8 is fixedly connected with L-shaped steel 27, a B plate 29 plays a limiting role on the grid plate 8, so that the grid plate 8 is stably connected with the L-shaped steel 27, a plurality of rectangular holes 30 are formed in the grid plate 8 at equal intervals, the lower portion of an emergent aquatic plant planting pot 9 is arranged in a penetrating mode through the rectangular holes 30, standardized planting is facilitated, the emergent aquatic plant planting pot 9 realizes single plant planting, withered plants can not be produced, water interception is not needed, the withered plants can be taken out and replaced, a plurality of small holes 31 are formed in the emergent aquatic plant planting pot 9 at equal intervals, the root system of the emergent aquatic plants is well-developed, root systems can penetrate through the small holes 31 at the bottom and the periphery of the planting, the contact area of the root system and the water body is increased, the loss of pollutants and suspended particles in water is prevented, the pollutants and suspended particles are settled down, meanwhile, a net woven by the root system can also provide a habitat for aquatic animals, the natural rock 32 has polygonal corners and rough surfaces, the removal of phosphorus elements in the water body is facilitated, the ceramsite has rough surfaces, multiple pores inside and larger surface area, the attachment growth of organisms is facilitated, the good removal effect on ammonia nitrogen elements in the water body is achieved, the zeolite structure is composed of silicon-oxygen tetrahedrons, cavities and pores with pores in the framework have adsorbability and ion exchange performance, the ammonia nitrogen in the sewage can be rapidly intercepted, the pores are large, the adsorption capacity of the zeolite with loose structure and uniform distribution is higher, the attachment sites after adsorption saturation can be regenerated through the synergistic effect of plants and microorganisms, the zeolite is cheap and easy to obtain, and the large-area use is facilitated, the slag filler contains rich calcium and magnesium components, has good adsorption effect on phosphorus in sewage, is a filler with better sewage treatment effect, can remove phosphorus elements and chemical oxygen demand by 95 percent, prevents the water-lifting plant layer 13 and the lower-layer filler from being washed away by water body, and also has the function of intercepting pollutants.

Example 6 of the invention: a multipurpose soilless planting ecological island comprises an emergent aquatic plant planting layer 1, a floating plant planting layer 2, a submerged plant planting layer 3, an A square steel structural column 4 and a fixed ecological island foundation structure 5, wherein the emergent aquatic plant planting layer 1 is connected with the floating plant planting layer 2 through the A square steel structural column 4, the floating plant planting layer 2 is connected with the submerged plant planting layer 3 through the A square steel structural column 4, the A square steel structural column 4 is connected with the fixed ecological island foundation structure 5, and the fixed ecological island foundation structure 5 is connected with a river bed 6; the water body communication of 360 degrees is realized, so that the interior of the ecological island also plays a role in purifying the water body, and the water body purifying function of the ecological island can be effectively improved; the emergent aquatic plant planting layer 1 comprises an A structure frame 7, a grid plate 8 and an emergent aquatic plant planting pot 9, the A structure frame 7 is connected with an A square steel structure column 4, the grid plate 8 is connected with the A structure frame 7, the emergent aquatic plant planting pot 9 is connected with the grid plate 8, an A base layer 10, an A main functional layer 11, an A covering layer 12 and an emergent aquatic plant layer 13 are sequentially arranged in the emergent aquatic plant planting pot 9 from bottom to top, the emergent aquatic plant layer 13 comprises reeds, water shallots, cattails, arums or calamus, and anticorrosive layers are coated on the A structure frame 7 and the grid plate 8; the A structural frame 7 is connected with the A square steel structural column 4 to enable an emergent aquatic plant planting layer 1 to be fixed on a river bed 6, a grid plate 8 is used for fixing an emergent aquatic plant planting pot 9, the A basic layer 10 and the A main functional layer 11 purify water, the A covering layer 12 prevents the A basic layer 10, the A main functional layer 11 and an emergent aquatic plant layer 13 from being washed away by the water and affecting the purification function, the root systems of reed, allium fistulosum, cattail, arundo donax linn or calamus, plants are tall and straight and grow singly, a certain water purification function is achieved, the purification of the water is facilitated, an anticorrosive layer is coated on the A structural frame 7 and the grid plate 8, the A structural frame 7 and the grid plate 8 are prevented from being corroded due to the fact that the A structural frame 7 and the grid plate 8 are in a; the floating plant planting layer 2 comprises a B structure frame 14 and an A steel wire basket 15, the B structure frame 14 is connected with the A square steel structure column 4, the B structure frame 14 is connected with the A steel wire basket 15, a B base layer 16, a B main functional layer 17, a B covering layer 18 and a floating plant layer 19 are sequentially arranged in the A steel wire basket 15 from bottom to top, the floating plant layer 19 comprises water lily, water hyacinth or sedentada, and an anticorrosive layer is coated on the B structure frame 14 and the A steel wire basket 15; the B structural framework 14 is connected with the A square steel structural column 4, so that the floating plant planting layer 2 is fixed on the riverbed 6, the B structural framework 14 is connected with the A steel wire mesh basket 15, the A steel wire mesh basket 15 can be fixed to prevent shaking, the B basic layer 16 and the B main functional layer 17 purify water, the B covering layer 18 prevents the B basic layer 16, the B main functional layer 17 and the floating plant layer 19 from being washed away by the water and affecting the purification function, water lily, water hyacinth or long-standing flower has a certain water purification function and is beneficial to water purification, and anti-corrosion layers are coated on the B structural framework 14 and the A steel wire mesh basket 15 to prevent the B structural framework 14 and the A steel wire mesh basket 15 from being corroded due to long-term wet environment and shorten the service life; the submerged plant planting layer 3 comprises a C structure frame 20 and a B steel wire basket 21, the C structure frame 20 is connected with the A square steel structure column 4, the C structure frame 20 is connected with the B steel wire basket 21, a C base layer 22, a C main functional layer 23, a C covering layer 24 and a submerged plant layer 25 are sequentially arranged in the B steel wire basket 21 from bottom to top, the submerged plant layer 25 comprises golden fish algae, verticillium dahliae or raccoon coypus, and anticorrosive layers are coated on the C structure frame 20 and the B steel wire basket 21; the C structure frame 20 is connected with the A square steel structure column 4, so that the submerged plant planting layer 3 is fixed on the riverbed 6, the C structure frame 20 is connected with the B steel wire mesh basket 21, the B steel wire mesh basket 21 can be fixed to prevent shaking, the C base layer 22 and the C main functional layer 23 purify water, the C covering layer 24 prevents the C base layer 22, the C main functional layer 23 and the submerged plant layer 25 from being washed away by the water to influence the purification function, the hornworts, the WHEELS or the nutria have certain water purification function and are beneficial to the purification of the water, the C structure frame 20 and the B steel wire mesh basket 21 are coated with anti-corrosion layers to prevent the C structure frame 20 and the B steel wire mesh basket 21 from being corroded due to being in a humid environment for a long time, and the service life is shortened; the A structural frame 7 comprises a plurality of B square steel structural columns 26 and a plurality of L-shaped steels 27, the bottom ends of the B square steel structural columns 26 are connected with the top ends of the A square steel structural columns 4, the L-shaped steels 27 are connected end to form a closed rectangular frame, each L-shaped steel 27 comprises an a plate 28 and a B plate 29, the B square steel structural columns 26 are connected to the lower surfaces of the a plates 28 at equal intervals, the top ends of the B square steel structural columns 26 are connected with the lower surfaces of the a plates 28, and the distance between every two adjacent B square steel structural columns 26 is 2000-4000 mm; a plurality of rectangular holes 30 are arranged on the grid plate 8 at equal intervals, and the grid plate 8 is connected with the upper surface of the a plate 28; the lower part of the emergent aquatic plant planting pot 9 is arranged in a penetrating manner through the rectangular hole 30, the outer edge of the opening of the emergent aquatic plant planting pot 9 is connected with the upper surface of the rectangular hole 30, and a plurality of small holes 31 are formed in the emergent aquatic plant planting pot 9 at equal intervals; the A base layer 10 comprises natural rocks 32 with the diameter of 40-60mm, and the A base layer 10 is 200-400mm thick; the main functional layer A11 comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are all 40-60mm, and the thickness of the main functional layer A11 is 400-600 mm; the A-coating 12 comprises coarse gravel 33 with the diameter of 50-70mm, and the A-coating 12 has the thickness of 200-400 mm; the top end of a B square steel structure column 26 is connected with the lower surface of an a plate 28, so that an emergent aquatic plant planting layer 1 is fixed on a river bed 6, a grid plate 8 is connected with the upper surface of the a plate 28, the grid plate 8 is fixedly connected with L-shaped steel 27, a B plate 29 plays a limiting role on the grid plate 8, so that the grid plate 8 is stably connected with the L-shaped steel 27, a plurality of rectangular holes 30 are formed in the grid plate 8 at equal intervals, the lower portion of an emergent aquatic plant planting pot 9 is arranged in a penetrating mode through the rectangular holes 30, standardized planting is facilitated, the emergent aquatic plant planting pot 9 realizes single plant planting, withered plants can not be produced, water interception is not needed, the withered plants can be taken out and replaced, a plurality of small holes 31 are formed in the emergent aquatic plant planting pot 9 at equal intervals, the root system of the emergent aquatic plants is well-developed, root systems can penetrate through the small holes 31 at the bottom and the periphery of the planting, the contact area of the root system and the water body is increased, the loss of pollutants and suspended particles in water is prevented, the pollutants and suspended particles are settled down, meanwhile, a net woven by the root system can also provide a habitat for aquatic animals, the natural rock 32 has polygonal corners and rough surfaces, the removal of phosphorus elements in the water body is facilitated, the ceramsite has rough surfaces, multiple pores inside and larger surface area, the attachment growth of organisms is facilitated, the good removal effect on ammonia nitrogen elements in the water body is achieved, the zeolite structure is composed of silicon-oxygen tetrahedrons, cavities and pores with pores in the framework have adsorbability and ion exchange performance, the ammonia nitrogen in the sewage can be rapidly intercepted, the pores are large, the adsorption capacity of the zeolite with loose structure and uniform distribution is higher, the attachment sites after adsorption saturation can be regenerated through the synergistic effect of plants and microorganisms, the zeolite is cheap and easy to obtain, and the large-area use is facilitated, the slag filler contains rich calcium and magnesium components, has good adsorption effect on phosphorus in sewage, is a filler with better sewage treatment effect, can remove phosphorus elements and chemical oxygen demand by 95 percent, prevents the water lifting plant layer 13 and the lower-layer filler from being washed away by water body by the coarse gravel 33, and also has the function of intercepting pollutants; the B structure frame 14 comprises a plurality of C square steel structure columns 34, the bottom ends of the C square steel structure columns 34 are connected with the top ends of the A square steel structure columns 4, the C square steel structure columns 34 are connected to the side wall of the A steel wire mesh basket 15 at equal intervals, and the distance between every two adjacent C square steel structure columns 34 is 2000-4000 mm; the B base layer 16 comprises natural rocks 32 with the diameter of 40-60mm, and the B base layer 16 has the thickness of 100-150 mm; the main functional layer 17 of B comprises ceramsite, zeolite and slag filler with the proportion of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are all 40-60mm, and the thickness of the main functional layer 17 of B is 200-300 mm; the B blanket 18 comprises coarse gravel 33 with the diameter of 50-70mm, and the B blanket 18 has the thickness of 100-150 mm; the bottom ends of the C square steel structural columns 34 are connected with the top ends of the A square steel structural columns 4, so that the floating plant planting layer 2 is fixed on the riverbed 6, a plurality of C square steel structural columns 34 are connected to the side wall of the A steel wire basket 15 at equal intervals, the A steel wire basket 15 can be fixed to prevent shaking, the natural rock 32 has polygonal corners and rough surfaces, is favorable for removing phosphorus elements in the water body, has rough surfaces and porous inner parts, has larger surface area, is favorable for attachment growth of organisms, and has good removal effect on ammonia nitrogen elements in the water body, the zeolite structure consists of silicon-oxygen tetrahedrons, cavities and pores with pores in the framework have adsorptivity and ion exchange property, can quickly intercept ammonia nitrogen in sewage, has large pores, has loose structure and higher adsorption amount of uniformly distributed zeolite, and the attachment sites after adsorption saturation can be regenerated through the synergistic action of plants and microorganisms, the zeolite is cheap and easy to obtain, is beneficial to large-area use, the slag filler contains rich calcium and magnesium components, has good adsorption effect on phosphorus in sewage, is a filler with better sewage treatment effect, can remove phosphorus elements and chemical oxygen demand by 95 percent, prevents the floating plant layer 19 and the lower-layer filler from being washed away by water body by the coarse gravel 33, and also has the function of intercepting pollutants.

Example 7 of the invention: a multipurpose soilless planting ecological island comprises an emergent aquatic plant planting layer 1, a floating plant planting layer 2, a submerged plant planting layer 3, an A square steel structural column 4 and a fixed ecological island foundation structure 5, wherein the emergent aquatic plant planting layer 1 is connected with the floating plant planting layer 2 through the A square steel structural column 4, the floating plant planting layer 2 is connected with the submerged plant planting layer 3 through the A square steel structural column 4, the A square steel structural column 4 is connected with the fixed ecological island foundation structure 5, and the fixed ecological island foundation structure 5 is connected with a river bed 6; the water body communication of 360 degrees is realized, so that the interior of the ecological island also plays a role in purifying the water body, and the water body purifying function of the ecological island can be effectively improved; the emergent aquatic plant planting layer 1 comprises an A structure frame 7, a grid plate 8 and an emergent aquatic plant planting pot 9, the A structure frame 7 is connected with an A square steel structure column 4, the grid plate 8 is connected with the A structure frame 7, the emergent aquatic plant planting pot 9 is connected with the grid plate 8, an A base layer 10, an A main functional layer 11, an A covering layer 12 and an emergent aquatic plant layer 13 are sequentially arranged in the emergent aquatic plant planting pot 9 from bottom to top, the emergent aquatic plant layer 13 comprises reeds, water shallots, cattails, arums or calamus, and anticorrosive layers are coated on the A structure frame 7 and the grid plate 8; the A structural frame 7 is connected with the A square steel structural column 4 to enable an emergent aquatic plant planting layer 1 to be fixed on a river bed 6, a grid plate 8 is used for fixing an emergent aquatic plant planting pot 9, the A basic layer 10 and the A main functional layer 11 purify water, the A covering layer 12 prevents the A basic layer 10, the A main functional layer 11 and an emergent aquatic plant layer 13 from being washed away by the water and affecting the purification function, the root systems of reed, allium fistulosum, cattail, arundo donax linn or calamus, plants are tall and straight and grow singly, a certain water purification function is achieved, the purification of the water is facilitated, an anticorrosive layer is coated on the A structural frame 7 and the grid plate 8, the A structural frame 7 and the grid plate 8 are prevented from being corroded due to the fact that the A structural frame 7 and the grid plate 8 are in a; the floating plant planting layer 2 comprises a B structure frame 14 and an A steel wire basket 15, the B structure frame 14 is connected with the A square steel structure column 4, the B structure frame 14 is connected with the A steel wire basket 15, a B base layer 16, a B main functional layer 17, a B covering layer 18 and a floating plant layer 19 are sequentially arranged in the A steel wire basket 15 from bottom to top, the floating plant layer 19 comprises water lily, water hyacinth or sedentada, and an anticorrosive layer is coated on the B structure frame 14 and the A steel wire basket 15; the B structural framework 14 is connected with the A square steel structural column 4, so that the floating plant planting layer 2 is fixed on the riverbed 6, the B structural framework 14 is connected with the A steel wire mesh basket 15, the A steel wire mesh basket 15 can be fixed to prevent shaking, the B basic layer 16 and the B main functional layer 17 purify water, the B covering layer 18 prevents the B basic layer 16, the B main functional layer 17 and the floating plant layer 19 from being washed away by the water and affecting the purification function, water lily, water hyacinth or long-standing flower has a certain water purification function and is beneficial to water purification, and anti-corrosion layers are coated on the B structural framework 14 and the A steel wire mesh basket 15 to prevent the B structural framework 14 and the A steel wire mesh basket 15 from being corroded due to long-term wet environment and shorten the service life; the submerged plant planting layer 3 comprises a C structure frame 20 and a B steel wire basket 21, the C structure frame 20 is connected with the A square steel structure column 4, the C structure frame 20 is connected with the B steel wire basket 21, a C base layer 22, a C main functional layer 23, a C covering layer 24 and a submerged plant layer 25 are sequentially arranged in the B steel wire basket 21 from bottom to top, the submerged plant layer 25 comprises golden fish algae, verticillium dahliae or raccoon coypus, and anticorrosive layers are coated on the C structure frame 20 and the B steel wire basket 21; the C structure frame 20 is connected with the A square steel structure column 4, so that the submerged plant planting layer 3 is fixed on the riverbed 6, the C structure frame 20 is connected with the B steel wire mesh basket 21, the B steel wire mesh basket 21 can be fixed to prevent shaking, the C base layer 22 and the C main functional layer 23 purify water, the C covering layer 24 prevents the C base layer 22, the C main functional layer 23 and the submerged plant layer 25 from being washed away by the water to influence the purification function, the hornworts, the WHEELS or the nutria have certain water purification function and are beneficial to the purification of the water, the C structure frame 20 and the B steel wire mesh basket 21 are coated with anti-corrosion layers to prevent the C structure frame 20 and the B steel wire mesh basket 21 from being corroded due to being in a humid environment for a long time, and the service life is shortened; the A structural frame 7 comprises a plurality of B square steel structural columns 26 and a plurality of L-shaped steels 27, the bottom ends of the B square steel structural columns 26 are connected with the top ends of the A square steel structural columns 4, the L-shaped steels 27 are connected end to form a closed rectangular frame, each L-shaped steel 27 comprises an a plate 28 and a B plate 29, the B square steel structural columns 26 are connected to the lower surfaces of the a plates 28 at equal intervals, the top ends of the B square steel structural columns 26 are connected with the lower surfaces of the a plates 28, and the distance between every two adjacent B square steel structural columns 26 is 2000-4000 mm; a plurality of rectangular holes 30 are arranged on the grid plate 8 at equal intervals, and the grid plate 8 is connected with the upper surface of the a plate 28; the lower part of the emergent aquatic plant planting pot 9 is arranged in a penetrating manner through the rectangular hole 30, the outer edge of the opening of the emergent aquatic plant planting pot 9 is connected with the upper surface of the rectangular hole 30, and a plurality of small holes 31 are formed in the emergent aquatic plant planting pot 9 at equal intervals; the A base layer 10 comprises natural rocks 32 with the diameter of 40-60mm, and the A base layer 10 is 200-400mm thick; the main functional layer A11 comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are all 40-60mm, and the thickness of the main functional layer A11 is 400-600 mm; the A-coating 12 comprises coarse gravel 33 with the diameter of 50-70mm, and the A-coating 12 has the thickness of 200-400 mm; the top end of a B square steel structure column 26 is connected with the lower surface of an a plate 28, so that an emergent aquatic plant planting layer 1 is fixed on a river bed 6, a grid plate 8 is connected with the upper surface of the a plate 28, the grid plate 8 is fixedly connected with L-shaped steel 27, a B plate 29 plays a limiting role on the grid plate 8, so that the grid plate 8 is stably connected with the L-shaped steel 27, a plurality of rectangular holes 30 are formed in the grid plate 8 at equal intervals, the lower portion of an emergent aquatic plant planting pot 9 is arranged in a penetrating mode through the rectangular holes 30, standardized planting is facilitated, the emergent aquatic plant planting pot 9 realizes single plant planting, withered plants can not be produced, water interception is not needed, the withered plants can be taken out and replaced, a plurality of small holes 31 are formed in the emergent aquatic plant planting pot 9 at equal intervals, the root system of the emergent aquatic plants is well-developed, root systems can penetrate through the small holes 31 at the bottom and the periphery of the planting, the contact area of the root system and the water body is increased, the loss of pollutants and suspended particles in water is prevented, the pollutants and suspended particles are settled down, meanwhile, a net woven by the root system can also provide a habitat for aquatic animals, the natural rock 32 has polygonal corners and rough surfaces, the removal of phosphorus elements in the water body is facilitated, the ceramsite has rough surfaces, multiple pores inside and larger surface area, the attachment growth of organisms is facilitated, the good removal effect on ammonia nitrogen elements in the water body is achieved, the zeolite structure is composed of silicon-oxygen tetrahedrons, cavities and pores with pores in the framework have adsorbability and ion exchange performance, the ammonia nitrogen in the sewage can be rapidly intercepted, the pores are large, the adsorption capacity of the zeolite with loose structure and uniform distribution is higher, the attachment sites after adsorption saturation can be regenerated through the synergistic effect of plants and microorganisms, the zeolite is cheap and easy to obtain, and the large-area use is facilitated, the slag filler contains rich calcium and magnesium components, has good adsorption effect on phosphorus in sewage, is a filler with better sewage treatment effect, can remove phosphorus elements and chemical oxygen demand by 95 percent, prevents the water lifting plant layer 13 and the lower-layer filler from being washed away by water body by the coarse gravel 33, and also has the function of intercepting pollutants; the B structure frame 14 comprises a plurality of C square steel structure columns 34, the bottom ends of the C square steel structure columns 34 are connected with the top ends of the A square steel structure columns 4, the C square steel structure columns 34 are connected to the side wall of the A steel wire mesh basket 15 at equal intervals, and the distance between every two adjacent C square steel structure columns 34 is 2000-4000 mm; the B base layer 16 comprises natural rocks 32 with the diameter of 40-60mm, and the B base layer 16 has the thickness of 100-150 mm; the main functional layer 17 of B comprises ceramsite, zeolite and slag filler with the proportion of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are all 40-60mm, and the thickness of the main functional layer 17 of B is 200-300 mm; the B blanket 18 comprises coarse gravel 33 with the diameter of 50-70mm, and the B blanket 18 has the thickness of 100-150 mm; the bottom ends of the C square steel structural columns 34 are connected with the top ends of the A square steel structural columns 4, so that the floating plant planting layer 2 is fixed on the riverbed 6, a plurality of C square steel structural columns 34 are connected to the side wall of the A steel wire basket 15 at equal intervals, the A steel wire basket 15 can be fixed to prevent shaking, the natural rock 32 has polygonal corners and rough surfaces, is favorable for removing phosphorus elements in the water body, has rough surfaces and porous inner parts, has larger surface area, is favorable for attachment growth of organisms, and has good removal effect on ammonia nitrogen elements in the water body, the zeolite structure consists of silicon-oxygen tetrahedrons, cavities and pores with pores in the framework have adsorptivity and ion exchange property, can quickly intercept ammonia nitrogen in sewage, has large pores, has loose structure and higher adsorption amount of uniformly distributed zeolite, and the attachment sites after adsorption saturation can be regenerated through the synergistic action of plants and microorganisms, the zeolite is cheap and easy to obtain, is beneficial to large-area use, the slag filler contains rich calcium and magnesium components, has good adsorption effect on phosphorus in sewage, is a filler with better sewage treatment effect, can remove phosphorus elements and chemical oxygen demand by 95 percent, prevents the floating plant layer 19 and the lower-layer filler from being washed away by water by the coarse gravel 33, and also has the function of intercepting pollutants; the C-shaped structural frame 20 comprises a plurality of D-shaped square steel structural columns 35, the bottom ends of the D-shaped square steel structural columns 35 are connected with the top ends of the A-shaped square steel structural columns 4, the D-shaped square steel structural columns 35 are connected to the side wall of the B-shaped steel wire mesh basket 21 at equal intervals, and the distance between every two adjacent D-shaped square steel structural columns 35 is 2000-4000 mm; the C base layer 22 comprises natural rocks 32 with the diameter of 40-60mm, and the C base layer 22 has the thickness of 100-150 mm; the C main functional layer 23 comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are all 40-60mm, and the thickness of the C main functional layer 23 is 200-300 mm; the C-coat 24 comprises coarse gravel 33 with the diameter of 50-70mm, and the C-coat 24 has the thickness of 100-150 mm; the bottom ends of the D square steel structural columns 35 are connected with the top ends of the A square steel structural columns 4, so that the submerged plant planting layer 3 is fixed on a riverbed 6, a plurality of the D square steel structural columns 35 are connected to the side wall of the B steel wire basket 21 at equal intervals, the B steel wire basket 21 can be fixed to prevent shaking, the natural rock 32 has polygonal corners and rough surfaces, is favorable for removing phosphorus elements in water in the water, has rough surfaces and porous inner parts, has large surface area, is favorable for attachment growth of organisms, and has good removal effect on ammonia nitrogen elements in the water, the zeolite structure consists of silicon-oxygen tetrahedrons, cavities and pores with pores in the framework have adsorptivity and ion exchange property, can quickly intercept ammonia nitrogen in sewage, has large pores, has loose structure and high adsorption quantity of uniformly distributed zeolite, and the attachment sites after adsorption saturation can be regenerated through the synergistic action of plants and microorganisms, the zeolite is cheap and easy to obtain, is beneficial to large-area use, the slag filler contains rich calcium and magnesium components, has good adsorption effect on phosphorus in sewage, is a filler with better sewage treatment effect, can remove phosphorus elements and chemical oxygen demand by 95 percent, and the coarse gravel 33 prevents the submerged plant layer 25 and the lower-layer filler from being washed away by water and also has the function of intercepting pollutants.

Example 8 of the invention: a multipurpose soilless planting ecological island comprises an emergent aquatic plant planting layer 1, a floating plant planting layer 2, a submerged plant planting layer 3, an A square steel structural column 4 and a fixed ecological island foundation structure 5, wherein the emergent aquatic plant planting layer 1 is connected with the floating plant planting layer 2 through the A square steel structural column 4, the floating plant planting layer 2 is connected with the submerged plant planting layer 3 through the A square steel structural column 4, the A square steel structural column 4 is connected with the fixed ecological island foundation structure 5, and the fixed ecological island foundation structure 5 is connected with a river bed 6; the water body communication of 360 degrees is realized, so that the interior of the ecological island also plays a role in purifying the water body, and the water body purifying function of the ecological island can be effectively improved; the emergent aquatic plant planting layer 1 comprises an A structure frame 7, a grid plate 8 and an emergent aquatic plant planting pot 9, the A structure frame 7 is connected with an A square steel structure column 4, the grid plate 8 is connected with the A structure frame 7, the emergent aquatic plant planting pot 9 is connected with the grid plate 8, an A base layer 10, an A main functional layer 11, an A covering layer 12 and an emergent aquatic plant layer 13 are sequentially arranged in the emergent aquatic plant planting pot 9 from bottom to top, the emergent aquatic plant layer 13 comprises reeds, water shallots, cattails, arums or calamus, and anticorrosive layers are coated on the A structure frame 7 and the grid plate 8; the A structural frame 7 is connected with the A square steel structural column 4 to enable an emergent aquatic plant planting layer 1 to be fixed on a river bed 6, a grid plate 8 is used for fixing an emergent aquatic plant planting pot 9, the A basic layer 10 and the A main functional layer 11 purify water, the A covering layer 12 prevents the A basic layer 10, the A main functional layer 11 and an emergent aquatic plant layer 13 from being washed away by the water and affecting the purification function, the root systems of reed, allium fistulosum, cattail, arundo donax linn or calamus, plants are tall and straight and grow singly, a certain water purification function is achieved, the purification of the water is facilitated, an anticorrosive layer is coated on the A structural frame 7 and the grid plate 8, the A structural frame 7 and the grid plate 8 are prevented from being corroded due to the fact that the A structural frame 7 and the grid plate 8 are in a; the floating plant planting layer 2 comprises a B structure frame 14 and an A steel wire basket 15, the B structure frame 14 is connected with the A square steel structure column 4, the B structure frame 14 is connected with the A steel wire basket 15, a B base layer 16, a B main functional layer 17, a B covering layer 18 and a floating plant layer 19 are sequentially arranged in the A steel wire basket 15 from bottom to top, the floating plant layer 19 comprises water lily, water hyacinth or sedentada, and an anticorrosive layer is coated on the B structure frame 14 and the A steel wire basket 15; the B structural framework 14 is connected with the A square steel structural column 4, so that the floating plant planting layer 2 is fixed on the riverbed 6, the B structural framework 14 is connected with the A steel wire mesh basket 15, the A steel wire mesh basket 15 can be fixed to prevent shaking, the B basic layer 16 and the B main functional layer 17 purify water, the B covering layer 18 prevents the B basic layer 16, the B main functional layer 17 and the floating plant layer 19 from being washed away by the water and affecting the purification function, water lily, water hyacinth or long-standing flower has a certain water purification function and is beneficial to water purification, and anti-corrosion layers are coated on the B structural framework 14 and the A steel wire mesh basket 15 to prevent the B structural framework 14 and the A steel wire mesh basket 15 from being corroded due to long-term wet environment and shorten the service life; the submerged plant planting layer 3 comprises a C structure frame 20 and a B steel wire basket 21, the C structure frame 20 is connected with the A square steel structure column 4, the C structure frame 20 is connected with the B steel wire basket 21, a C base layer 22, a C main functional layer 23, a C covering layer 24 and a submerged plant layer 25 are sequentially arranged in the B steel wire basket 21 from bottom to top, the submerged plant layer 25 comprises golden fish algae, verticillium dahliae or raccoon coypus, and anticorrosive layers are coated on the C structure frame 20 and the B steel wire basket 21; the C structure frame 20 is connected with the A square steel structure column 4, so that the submerged plant planting layer 3 is fixed on the riverbed 6, the C structure frame 20 is connected with the B steel wire mesh basket 21, the B steel wire mesh basket 21 can be fixed to prevent shaking, the C base layer 22 and the C main functional layer 23 purify water, the C covering layer 24 prevents the C base layer 22, the C main functional layer 23 and the submerged plant layer 25 from being washed away by the water to influence the purification function, the hornworts, the WHEELS or the nutria have certain water purification function and are beneficial to the purification of the water, the C structure frame 20 and the B steel wire mesh basket 21 are coated with anti-corrosion layers to prevent the C structure frame 20 and the B steel wire mesh basket 21 from being corroded due to being in a humid environment for a long time, and the service life is shortened; the A structural frame 7 comprises a plurality of B square steel structural columns 26 and a plurality of L-shaped steels 27, the bottom ends of the B square steel structural columns 26 are connected with the top ends of the A square steel structural columns 4, the L-shaped steels 27 are connected end to form a closed rectangular frame, each L-shaped steel 27 comprises an a plate 28 and a B plate 29, the B square steel structural columns 26 are connected to the lower surfaces of the a plates 28 at equal intervals, the top ends of the B square steel structural columns 26 are connected with the lower surfaces of the a plates 28, and the distance between every two adjacent B square steel structural columns 26 is 2000-4000mm, preferably 3000 mm; a plurality of rectangular holes 30 are arranged on the grid plate 8 at equal intervals, and the grid plate 8 is connected with the upper surface of the a plate 28; the lower part of the emergent aquatic plant planting pot 9 is arranged in a penetrating manner through the rectangular hole 30, the outer edge of the opening of the emergent aquatic plant planting pot 9 is connected with the upper surface of the rectangular hole 30, and a plurality of small holes 31 are formed in the emergent aquatic plant planting pot 9 at equal intervals; the A base layer 10 comprises natural rocks 32 with a diameter of 40-60mm, preferably 50mm, and the A base layer 10 has a thickness of 200-400mm, preferably 300 mm; the A main functional layer 11 comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are 40-60mm, preferably 50mm, and the thickness of the A main functional layer 11 is 400-600mm, preferably 500 mm; the A blanket 12 comprises coarse gravel 33 with a diameter of 50-70mm, preferably 60mm, and the A blanket 12 has a thickness of 200-400mm, preferably 300 mm; the top end of a B square steel structure column 26 is connected with the lower surface of an a plate 28, so that an emergent aquatic plant planting layer 1 is fixed on a river bed 6, a grid plate 8 is connected with the upper surface of the a plate 28, the grid plate 8 is fixedly connected with L-shaped steel 27, a B plate 29 plays a limiting role on the grid plate 8, so that the grid plate 8 is stably connected with the L-shaped steel 27, a plurality of rectangular holes 30 are formed in the grid plate 8 at equal intervals, the lower portion of an emergent aquatic plant planting pot 9 is arranged in a penetrating mode through the rectangular holes 30, standardized planting is facilitated, the emergent aquatic plant planting pot 9 realizes single plant planting, withered plants can not be produced, water interception is not needed, the withered plants can be taken out and replaced, a plurality of small holes 31 are formed in the emergent aquatic plant planting pot 9 at equal intervals, the root system of the emergent aquatic plants is well-developed, root systems can penetrate through the small holes 31 at the bottom and the periphery of the planting, the contact area of the root system and the water body is increased, the loss of pollutants and suspended particles in water is prevented, the pollutants and suspended particles are settled down, meanwhile, a net woven by the root system can also provide a habitat for aquatic animals, the natural rock 32 has polygonal corners and rough surfaces, the removal of phosphorus elements in the water body is facilitated, the ceramsite has rough surfaces, multiple pores inside and larger surface area, the attachment growth of organisms is facilitated, the good removal effect on ammonia nitrogen elements in the water body is achieved, the zeolite structure is composed of silicon-oxygen tetrahedrons, cavities and pores with pores in the framework have adsorbability and ion exchange performance, the ammonia nitrogen in the sewage can be rapidly intercepted, the pores are large, the adsorption capacity of the zeolite with loose structure and uniform distribution is higher, the attachment sites after adsorption saturation can be regenerated through the synergistic effect of plants and microorganisms, the zeolite is cheap and easy to obtain, and the large-area use is facilitated, the slag filler contains rich calcium and magnesium components, has good adsorption effect on phosphorus in sewage, is a filler with better sewage treatment effect, can remove phosphorus elements and chemical oxygen demand by 95 percent, prevents the water lifting plant layer 13 and the lower-layer filler from being washed away by water body by the coarse gravel 33, and also has the function of intercepting pollutants; the B structure frame 14 comprises a plurality of C square steel structure columns 34, the bottom ends of the C square steel structure columns 34 are connected with the top ends of the A square steel structure columns 4, the C square steel structure columns 34 are connected to the side wall of the A steel wire mesh basket 15 at equal intervals, the distance between every two adjacent C square steel structure columns 34 is 2000-4000mm, and the preferable distance is 3000 mm; the B base layer 16 comprises natural rock 32 with a diameter of 40-60mm, preferably 50mm, the B base layer 16 is 100-150mm, preferably 125 mm; the B main functional layer 17 comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are 40-60mm, preferably 50mm, and the thickness of the B main functional layer 17 is 200-300mm, preferably 250 mm; the B blanket 18 comprises coarse gravel 33 with a diameter of 50-70mm, preferably 60mm, the B blanket 18 has a thickness of 100-150mm, preferably 125 mm; the bottom ends of the C square steel structural columns 34 are connected with the top ends of the A square steel structural columns 4, so that the floating plant planting layer 2 is fixed on the riverbed 6, a plurality of C square steel structural columns 34 are connected to the side wall of the A steel wire basket 15 at equal intervals, the A steel wire basket 15 can be fixed to prevent shaking, the natural rock 32 has polygonal corners and rough surfaces, is favorable for removing phosphorus elements in the water body, has rough surfaces and porous inner parts, has larger surface area, is favorable for attachment growth of organisms, and has good removal effect on ammonia nitrogen elements in the water body, the zeolite structure consists of silicon-oxygen tetrahedrons, cavities and pores with pores in the framework have adsorptivity and ion exchange property, can quickly intercept ammonia nitrogen in sewage, has large pores, has loose structure and higher adsorption amount of uniformly distributed zeolite, and the attachment sites after adsorption saturation can be regenerated through the synergistic action of plants and microorganisms, the zeolite is cheap and easy to obtain, is beneficial to large-area use, the slag filler contains rich calcium and magnesium components, has good adsorption effect on phosphorus in sewage, is a filler with better sewage treatment effect, can remove phosphorus elements and chemical oxygen demand by 95 percent, prevents the floating plant layer 19 and the lower-layer filler from being washed away by water by the coarse gravel 33, and also has the function of intercepting pollutants; the C-shaped structural frame 20 comprises a plurality of D square steel structural columns 35, the bottom ends of the D square steel structural columns 35 are connected with the top ends of the A square steel structural columns 4, the D square steel structural columns 35 are connected to the side wall of the B steel wire mesh basket 21 at equal intervals, the distance between every two adjacent D square steel structural columns 35 is 2000-4000mm, and the preferable distance is 3000 mm; the C base layer 22 comprises natural rock 32 with a diameter of 40-60mm, preferably 50mm, the C base layer 22 has a thickness of 100-150mm, preferably 125 mm; the C main functional layer 23 comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are 40-60mm, preferably 50mm, and the thickness of the C main functional layer 23 is 200-300mm, preferably 250 mm; the C-cap 24 comprises coarse gravel 33 with a diameter of 50-70mm, preferably 60mm, and the C-cap 24 has a thickness of 100-150mm, preferably 125 mm; the bottom ends of the D square steel structural columns 35 are connected with the top ends of the A square steel structural columns 4, so that the submerged plant planting layer 3 is fixed on a riverbed 6, a plurality of the D square steel structural columns 35 are connected to the side wall of the B steel wire basket 21 at equal intervals, the B steel wire basket 21 can be fixed to prevent shaking, the natural rock 32 has polygonal corners and rough surfaces, is favorable for removing phosphorus elements in water in the water, has rough surfaces and porous inner parts, has large surface area, is favorable for attachment growth of organisms, and has good removal effect on ammonia nitrogen elements in the water, the zeolite structure consists of silicon-oxygen tetrahedrons, cavities and pores with pores in the framework have adsorptivity and ion exchange property, can quickly intercept ammonia nitrogen in sewage, has large pores, has loose structure and high adsorption quantity of uniformly distributed zeolite, and the attachment sites after adsorption saturation can be regenerated through the synergistic action of plants and microorganisms, the zeolite is cheap and easy to obtain, is beneficial to large-area use, the slag filler contains rich calcium and magnesium components, has good adsorption effect on phosphorus in sewage, is a filler with better sewage treatment effect, can remove phosphorus elements and chemical oxygen demand by 95 percent, and the coarse gravel 33 prevents the submerged plant layer 25 and the lower-layer filler from being washed away by water and also has the function of intercepting pollutants; the A square steel structural column 4 and the fixed ecological island basic structural member 5 are coated with anticorrosive coatings; the A square steel structural column 4 and the fixed ecological island basic structural member 5 are prevented from being corroded due to being in a humid environment for a long time, and the service life is shortened.

s1, arranging anticorrosive materials on the A square steel structural column 4, the fixed ecological island foundation structural member 5, the A structural frame 7, the grid plate 8, the B structural frame 14, the A steel wire mesh basket 15, the C structural frame 20 and the B steel wire mesh basket 21;

s2, fixedly installing the fixed ecological island foundation structural member 5 on the riverbed 6, and fixedly installing the A square steel structural column 4 on the fixed ecological island foundation structural member 5;

s3, fixedly connecting the bottom end of the B-square steel structural column 26 with the top end of the A-square steel structural column 4, connecting a plurality of L-shaped steels 27 end to form a closed rectangular frame, fixedly connecting the top end of the B-square steel structural column 26 with the lower surface of the a plate 28, and fixedly connecting the grid plate 8 with the upper surface of the a plate 28; paving natural rocks 32 with the thickness of 200-400mm, preferably 300mm, at the bottom of the emergent aquatic plant planting pot 9, then paving a main functional layer A11 with the thickness of 400-600mm, preferably 500mm, wherein the main functional layer A11 is prepared by mixing ceramsite, zeolite and slag filler according to the proportion of 1:2:1, then paving coarse gravels 33 with the thickness of 200-400mm, preferably 300mm, planting the emergent aquatic plant layer 13 on the coarse gravels 33, installing the emergent aquatic plant planting pot 9 with the emergent aquatic plant layer 13 in a rectangular hole 30, and enabling the bottom of the emergent aquatic plant planting pot 9 to be placed in water;

s4, fixedly connecting the bottom end of a C-shaped steel structure column 34 with the top end of an A-shaped steel structure column 4, fixedly connecting the side face of the C-shaped steel structure column 34 with the side wall of an A-shaped steel wire basket 15, paving 100-plus-150 mm-thick natural rock 32, preferably 125mm, at the bottom of the A-shaped steel wire basket 15, paving 200-plus-300 mm-thick B main functional layer 17, preferably 250mm, mixing the B main functional layer 17 with ceramsite, zeolite and slag filler according to the proportion of 1:2:1, paving 100-plus-150 mm-thick coarse gravel 33, preferably 125mm, and planting a floating plant layer 19 on the coarse gravel 33 to enable the floating plant layer 19 to float on the water surface;

s5, fixedly connecting the bottom end of the D-square steel structure column 35 with the top end of the A-square steel structure column 4, fixedly connecting the side face of the D-square steel structure column 35 with the side wall of the B-steel wire basket 21, paving 100-plus-150 mm-thick natural rock 32, preferably 125mm, at the bottom of the B-steel wire basket 21, paving 200-plus-300 mm-thick C main functional layer 23, preferably 250mm, mixing the C main functional layer 23 with ceramsite, zeolite and slag filler according to the proportion of 1:2:1, paving 100-plus-150 mm-thick coarse gravel 33, preferably 125mm, and planting the submerged plant layer 25 on the coarse gravel 33 to enable the submerged plant layer 25 to sink to the water bottom.

The working principle of one embodiment of the invention is as follows: an emergent aquatic plant planting layer 1 is connected with a floating plant planting layer 2 through an A square steel structural column 4, the floating plant planting layer 2 is connected with a submerged plant planting layer 3 through the A square steel structural column 4, the A square steel structural column 4 is connected with a fixed ecological island basic structural member 5, the fixed ecological island basic structural member 5 is connected with a river bed 6, water body communication is achieved, and elements such as nitrogen, phosphorus, ammonia and the like and other pollutants in the water body are effectively purified under the action of an emergent aquatic plant layer 13, a floating plant layer 19, a submerged plant layer 25, natural rocks 32, ceramsite, zeolite, slag filler and coarse gravel 33.

Claims

1. The utility model provides a multipurpose soilless planting ecological island, a serial communication port, including emergent aquatic plant species plants layer (1), layer (2) is planted to the plant of floating, layer (3) is planted to the submerged plant, A square steel structure post (4) and ecological island infrastructure spare (5) are fixed, emergent aquatic plant species plants layer (1) and plants layer (2) with the plant of floating through A square steel structure post (4) and is connected, the plant of floating plants layer (2) is planted layer (3) through A square steel structure post (4) and submerged plant species and is connected, A square steel structure post (4) are connected with ecological island infrastructure spare (5) are fixed, ecological island infrastructure spare (5) are fixed and are connected with riverbed (6).

2. A multipurpose soilless planting ecological island according to claim 1, wherein the emergent aquatic plant planting layer (1) comprises an a-structure frame (7), a grid plate (8) and an emergent aquatic plant planting pot (9), the a-structure frame (7) is connected with an a-square steel structure column (4), the grid plate (8) is connected with the a-structure frame (7), the emergent aquatic plant planting pot (9) is connected with the grid plate (8), an a-base layer (10), an a-main functional layer (11), an a-cover layer (12) and an emergent aquatic plant layer (13) are sequentially arranged in the emergent aquatic plant planting pot (9) from bottom to top, the emergent aquatic plant layer (13) comprises reeds, water shallots, cattails, arums or calamus, and the a-structure frame (7) and the grid plate (8) are coated with anticorrosive layers.

3. A multipurpose soilless culture ecological island according to claim 1, characterized in that the floating plant planting layer (2) comprises a B structure frame (14) and an a steel wire basket (15), the B structure frame (14) is connected with the a square steel structure column (4), the B structure frame (14) is connected with the a steel wire basket (15), a B base layer (16), a B main functional layer (17), a B cover layer (18) and a floating plant layer (19) are sequentially arranged in the a steel wire basket (15) from bottom to top, the floating plant layer (19) comprises water lily, water hyacinth or long-noded lordosis, and the B structure frame (14) and the a steel wire basket (15) are coated with anticorrosive layers.

4. A multipurpose soilless culture ecological island according to claim 1, wherein the submerged plant planting layer (3) comprises a C-structure frame (20) and a B-steel wire basket (21), the C-structure frame (20) is connected with the a-square steel structure column (4), the C-structure frame (20) is connected with the B-steel wire basket (21), a C-base layer (22), a C-main functional layer (23), a C-cover layer (24) and a submerged plant layer (25) are sequentially arranged in the B-steel wire basket (21) from bottom to top, the submerged plant layer (25) comprises goldfish algae, verticillium dahlia or raccoon algae, and the C-structure frame (20) and the B-steel wire basket (21) are coated with anticorrosive layers.

5. The multipurpose soilless culture ecological island as claimed in claim 2, wherein the A structural frame (7) comprises a plurality of B square steel structural columns (26) and a plurality of L-shaped steels (27), the bottom ends of the B square steel structural columns (26) are connected with the top ends of the A square steel structural columns (4), the L-shaped steels (27) are connected end to form a closed rectangular frame, the L-shaped steels (27) comprise a plates (28) and B plates (29), the B square steel structural columns (26) are connected to the lower surfaces of the a plates (28) at equal intervals, the top ends of the B square steel structural columns (26) are connected with the lower surfaces of the a plates (28), and the distance between two adjacent B square steel structural columns (26) is 2000-4000 mm; a plurality of rectangular holes (30) are arranged on the grid plate (8) at equal intervals, and the grid plate (8) is connected with the upper surface of the plate a (28); the lower part of the emergent aquatic plant planting pot (9) is arranged in a penetrating way through the rectangular hole (30), the outer edge of the opening of the emergent aquatic plant planting pot (9) is connected with the upper surface of the rectangular hole (30), and a plurality of small holes (31) are arranged on the emergent aquatic plant planting pot (9) at equal intervals; the A base layer (10) comprises natural rocks (32) with the diameter of 40-60mm, and the A base layer (10) has the thickness of 200-400 mm; the main functional layer A (11) comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are 40-60mm, and the thickness of the main functional layer A (11) is 400-600 mm; the A-coating (12) comprises coarse gravel (33) with a diameter of 50-70mm, and the A-coating (12) has a thickness of 200-400 mm.

6. The multipurpose soilless culture ecological island as claimed in claim 3, wherein the B structural frame (14) comprises a plurality of C square steel structural columns (34), the bottom ends of the C square steel structural columns (34) are connected with the top ends of the A square steel structural columns (4), the C square steel structural columns (34) are connected with the side walls of the A wire basket (15) at equal intervals, and the distance between two adjacent C square steel structural columns (34) is 2000-4000 mm; the B base layer (16) comprises natural rocks (32) with the diameter of 40-60mm, and the thickness of the B base layer (16) is 150 mm; the main functional layer (17) of the B comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are all 40-60mm, and the thickness of the main functional layer (17) of the B is 200-300 mm; the B-coat (18) comprises coarse gravel (33) with a diameter of 50-70mm, and the B-coat (18) has a thickness of 100-150 mm.

7. The multipurpose soilless culture ecological island as claimed in claim 4, wherein the C structural frame (20) comprises a plurality of D square steel structural columns (35), the bottom ends of the D square steel structural columns (35) are connected with the top ends of the A square steel structural columns (4), the D square steel structural columns (35) are connected with the side wall of the B wire basket (21) at equal intervals, and the distance between two adjacent D square steel structural columns (35) is 2000-4000 mm; the C base layer (22) comprises natural rocks (32) with the diameter of 40-60mm, and the thickness of the C base layer (22) is 150 mm; the main functional layer C (23) comprises ceramsite, zeolite and slag filler in a ratio of 1:2:1, the diameters of the ceramsite, the zeolite and the slag filler are 40-60mm, and the thickness of the main functional layer C (23) is 200-300 mm; the C-coat (24) comprises coarse gravel (33) with a diameter of 50-70mm, and the C-coat (24) has a thickness of 100-150 mm.

8. A multipurpose soilless culture ecological island according to claim 1, characterized in that the a square steel structural columns (4) and the ecological island foundation structural members (5) are coated with anticorrosive layers.

9. An implementation method of a multipurpose soilless planting ecological island is characterized by comprising the following steps:

s1, arranging anticorrosive materials on the A square steel structural column (4), the fixed ecological island foundation structural member (5), the A structural frame (7), the grid plate (8), the B structural frame (14), the A steel wire mesh basket (15), the C structural frame (20) and the B steel wire mesh basket (21);

s2, fixedly installing the fixed ecological island foundation structural member (5) on a riverbed (6), and fixedly installing the A square steel structural column (4) on the fixed ecological island foundation structural member (5);

s3, fixedly connecting the bottom end of a B-square steel structural column (26) with the top end of an A-square steel structural column (4), connecting a plurality of L-shaped steels (27) end to form a closed rectangular frame, fixedly connecting the top end of the B-square steel structural column (26) with the lower surface of an a plate (28), and fixedly connecting a grid plate (8) with the upper surface of the a plate (28); paving natural rocks (32) with the thickness of 200-400mm at the bottom of the emergent aquatic plant planting pot (9), then paving a main functional layer A (11) with the thickness of 400-600mm, wherein the main functional layer A (11) is prepared by mixing ceramsite, zeolite and slag filler according to the proportion of 1:2:1, then paving a coarse gravel (33) with the thickness of 200-400mm, planting a emergent aquatic plant layer (13) on the coarse gravel (33), installing the emergent aquatic plant planting pot (9) with the emergent aquatic plant layer (13) in a rectangular hole (30), and placing the bottom of the emergent aquatic plant planting pot (9) in water;

s4, fixedly connecting the bottom end of a C-shaped steel structure column (34) with the top end of an A-shaped steel structure column (4), fixedly connecting the side face of the C-shaped steel structure column (34) with the side wall of an A-shaped steel wire mesh basket (15), paving a natural rock (32) with the thickness of 100-150mm at the bottom of the A-shaped steel wire mesh basket (15), paving a B main functional layer (17) with the thickness of 200-300mm, mixing the B main functional layer (17) with ceramsite, zeolite and slag filler according to the ratio of 1:2:1, paving a coarse gravel (33) with the thickness of 100-150mm, and planting a floating plant layer (19) on the coarse gravel (33) to enable the floating plant layer (19) to float on the water surface;

s5, fixedly connecting the bottom end of the D-shaped steel structure column (35) with the top end of the A-shaped steel structure column (4), fixedly connecting the side face of the D-shaped steel structure column (35) with the side wall of the B-shaped steel wire mesh basket (21), paving 100-inch 150mm natural rock (32) at the bottom of the B-shaped steel wire mesh basket (21), paving 200-inch 300mm thick C main functional layer (23), mixing the C main functional layer (23) with ceramsite, zeolite and slag filler according to the ratio of 1:2:1, paving 100-inch 150-inch thick gravel (33), and planting a submerged plant layer (25) on the thick gravel (33) to enable the submerged plant layer (25) to sink to the water bottom.