62 results about "Emergent plant" patented technology

The invention discloses a composite bio-based suspension purification system based on a near-natural water ecology concept, and belongs to the technical field of water ecology diversity restoration. The system is composed of an emergent aquatic plant ecological design module, a bio-based suspension core, a microorganism cultivation bed, an intelligent underwater oxygenation and aeration module, an artificial ecological fish reef and a submerged plant planting module. Wherein the bio-based suspension core is of a four-layer gradient composite structure and comprises a polyester fiber filler layer, an active carbon fiber sponge layer and a palm fiber bio-base layer, and synergistic purification of physical adsorption, chemical degradation and biological metabolism is achieved. The intelligent aeration module dynamically regulates and controls the aeration intensity through multi-parameter sensor linkage and a fuzzy PID algorithm, and the oxygen transfer efficiency is larger than or equal to 35%. According to the invention, through coupling design of aperture gradient distribution (80-92% porosity) of the four-layer gradient bio-based suspension core and a dynamic response threshold value of a fuzzy PID algorithm, collaborative optimization of carrier structure parameters and control system parameters is realized for the first time. The innovative technology not only improves the stability and diversity of an ecological system, but also strengthens the natural purification capacity of a water body, and provides a new thought for water environment protection.

The utility model relates to a pomacea canaliculata trapper which comprises a trapping mechanism, a liquid medicine barrel is arranged below the trapping mechanism, a photovoltaic panel is installed on the top of the trapping mechanism, the trapping mechanism comprises a bottom plate and a lower frame, a plurality of vertical rods are connected between the bottom plate and the lower frame, and an action control circuit and a photovoltaic power source controller are installed on the surface of the bottom plate. A gear transmission mechanism is installed below the bottom plate and comprises a plurality of gears, an output shaft of each gear is rotationally connected with a rotating blade, the rotating blades are located above the lower frame, a screw is further arranged between the bottom plate and the lower frame and connected with a spiral sweeping disc, one end of the spiral sweeping disc is in sliding connection with the vertical rod, and the other end of the spiral sweeping disc is in sliding connection with the vertical rod. And the screw rod and the sweeping disc are positioned in an area enclosed by the plurality of rotating blades. According to the habit that the ampullaria gigas climbs to the side wall of a hard object on the water surface or the surface of an emergent aquatic plant to lay eggs before nighttime to dawn, mechanical equipment is combined, female ampullaria gigas before egg laying is efficiently caught and killed through a physical means, the population number of the ampullaria gigas is greatly controlled, and the device is environmentally friendly and low in input manpower and cost.

The invention discloses a filler reinforced ecological floating bed for purifying aquaculture tail water and application thereof, and belongs to the technical field of water treatment. The filler reinforced ecological floating bed comprises canna cultivated in a floating plate and straw or straw biochar suspended below the floating plate; the straw biochar is obtained by taking straw as a raw material and pyrolyzing the straw at 500 DEG C or 700 DEG C. The ecological floating bed capable of purifying the aquaculture tail water is prepared by utilizing the emergent aquatic plant canna which has high purification efficiency on nitrogen and phosphorus and the straw or straw biochar which has a large surface area and is beneficial to the growth of denitrifying bacteria, and the ecological floating bed can effectively reduce the content of nitrogen and phosphorus in the aquaculture tail water, accelerate the denitrification and dephosphorization rate and improve the quality of the aquaculture tail water. The tail water purification method can be used for reducing nitrate accumulation, realizing tail water purification, providing scientific basis and technical support for tail water treatment work in aquaculture, and being beneficial to promoting green and sustainable development of aquaculture.

The utility model relates to the technical field of water quality purification floating beds, and discloses a combined floating bed, which comprises a floating frame part and a submerged frame part, floating platforms are detachably arranged at two ends of the frame, the submerged frame part is arranged in the middle of the floating frame part, emergent aquatic plants are planted on the floating platforms, and submerged plants are planted on the submerged platforms. According to the combined floating bed, plant varieties are enriched, emergent aquatic plants and submerged plants are combined to achieve a better purification effect on water quality, and meanwhile, the combined floating bed has a landscape beautifying effect; the floating frame part provides buoyancy for the sinking frame part, the stability of the sinking bed main body is guaranteed, the floating frame part and the sinking frame part are not overlapped in the vertical direction, the floating frame part cannot shield sunlight of the submerged plants, and the requirement of the submerged plants in the sinking bed for illumination can be guaranteed.

The application discloses a kind of composite biological base suspended purification systems based on near natural water ecological concept, belong to water ecological diversity restoration technical field.The system is composed of emergent plant ecological design module, biological base suspended core, microbial cultivation bed, intelligent underwater oxygenation aeration module, artificial ecological fish reef and submerged plant planting module.Biological base suspended core adopts four-layer gradient composite structure, including polyester fiber filler layer, activated carbon fiber sponge layer and palm silk biological base layer, realize physical adsorption, chemical degradation and biological metabolism synergistic purification.Intelligent aeration module is linked through multi-parameter sensor and fuzzy PID algorithm dynamically controls aeration intensity, oxygen transfer efficiency is greater than or equal to 35%.The application is coupled by the aperture gradient distribution (80%-92% porosity) of four-layer gradient biological base suspended core and the dynamic response threshold of fuzzy PID algorithm, for the first time realizes the collaborative optimization of carrier structure parameters and control system parameters.The innovation technology not only improves the stability and diversity of ecological system, but also strengthens the natural purification capacity of water body, provides a new idea for water environment protection.

The invention relates to a discharge port biological filter system which comprises an inner ring gabion, the area of the inner ring gabion is determined according to the average daily displacement of a discharge port and the hydraulic retention time of 4 hours; the outer ring overflow weir adopts a triangular overflow weir, graded broken stones are filled in the outer ring overflow weir, and sandy soil is selected for 30cm of the surface layer; the biological matrix is located in the inner ring gabion, the biological matrix comprises volcanic rock, paddy basketry rock and biological ceramsite, and the porosity of the biological matrix is larger than or equal to 40%; the hygrophytes are emergent aquatic plants, and varieties with stain resistance and developed root systems are selected. According to the discharge port biological filter system provided by the invention, through the inner ring gabion and the outer ring overflow weir, the tail end treatment of the rain and sewage mixed discharge port is realized, and the quality of water entering a lake is greatly improved.

The utility model discloses a planting device suitable for a multilayer aquatic plant community, which relates to the technical field of aquatic plant planting and comprises a water surface planting platform, an underwater planting platform and an assembly structure. By arranging the water surface planting platform, the underwater planting platforms and the assembling structures, the multiple underwater planting platforms can be assembled below the water surface planting platform through the assembling structures, after the device is put into water, the water surface planting platform can float on the water surface, the multiple underwater planting platforms can be located in the water, then water plants such as duckweed can be planted in the planting pots, and the planting efficiency is improved. Then submerged plants and emergent aquatic plants are planted in a planting cylinder in water, vesuvianite can be placed in the planting cylinder to fix root systems of the plants so as to prevent the plants from being separated from the planting cylinder, when the water surface ascends and descends, a floating ring can be located on the water surface all the time, and a lifting rope can pull the underwater planting platform; therefore, the underwater planting platform is always underwater, and death caused by dehydration of aquatic plants is avoided.

The utility model discloses an ecological system for deep purification of tail water of a sewage plant, which comprises a wetland purification unit, a vegetable purification unit and a symbiotic ecological unit, the wetland purification unit is arranged on the upstream of the vegetable purification unit, and the symbiotic ecological unit is arranged in the vegetable purification unit. According to the characteristics of water area, water environment conditions and the like, the wetland purification unit, the vegetable purification unit and the symbiotic ecological unit are constructed, the three units promote each other in the water treatment process, ecological treatment, tail water resource utilization and system stability improvement are achieved, and the purification efficiency of the system is kept for a long time; the planting range, the planting density and the planting mode of the aquatic vegetables are comprehensively planned, meanwhile, according to hydrodynamic conditions, combined with the impact resistance of the system, emergent aquatic plants are increased for water body slow flow in a large water body flow rate or large area, the survival rate and growth vigor of the aquatic vegetables can be effectively increased, and the space utilization rate is increased by reasonably arranging the vegetables and the plants, so that the ecological environment is improved. The purification capability of the system is enhanced.

The invention provides a river in-situ enhanced nitrogen removal ecological capacity expansion device, and belongs to the field of river in-situ purification, the river in-situ enhanced nitrogen removal ecological capacity expansion device comprises an outer frame, a biological blanket, a biological filler, submerged plants and emergent aquatic plants, the upper end of the outer frame is provided with a baffle, the bottom of the outer frame is provided with fixing feet and a gravity caisson, and the gravity caisson is connected with the fixing feet through cables; the gravity caisson is arranged in the outer frame, river sand is filled in the gravity caisson, the biological blanket comprises an aerobic biological blanket arranged above the outer frame and an anaerobic biological blanket arranged at the bottom of the outer frame, the anaerobic biological blanket is arranged in the bottom mud, the biological filler is arranged between the aerobic biological blanket and the anaerobic biological blanket, the biological filler comprises braid type biological ropes and multi-surface hollow filler balls, and the braid type biological ropes and the multi-surface hollow filler balls are arranged in the outer frame. The multi-surface hollow filler is provided with a plurality of braided biological ropes which are connected in series, emergent aquatic plants are planted above the aerobic biological blanket, and submerged plants are planted on the anaerobic biological blanket. The device is low in manufacturing cost and high in stability during use, and can efficiently perform denitrification treatment on water pollution of rivers.

The invention discloses a microbial strain in-situ remediation device combined with an ecological floating bed, which comprises planting units for fixing emergent aquatic plants, carrier modules are arranged on the planting units, the carrier modules are used for bearing and slowly releasing functional microbial strains, the number of the planting units is multiple, and the carrier modules are used for carrying and slowly releasing the functional microbial strains. The plurality of groups of planting units are uniformly distributed in a matrix type or a determinant type, and connecting cables are arranged among the plurality of groups of planting units; the space and density of the multiple planting units and the carrier modules can be freely adjusted through the connecting cables, flexible adaptation can be achieved according to the actual situation of a water area to be repaired, the space can be shortened, arrangement can be densified, the coverage density of the planting units and the microorganism release point positions of the carrier modules can be increased for the area with the high pollution concentration, and the remediation efficiency is improved. The local pollution purification efficiency is improved, the distance can be increased, the arrangement density can be reduced, resource waste is avoided, and the problem of local oxygen deficit caused by excessively dense plant root systems and microbial carriers is solved for a slightly-polluted or open water area.

The utility model discloses an urban channel ecological landscape facility which comprises a water channel, sinking parts are arranged on the two sides of the water channel, and one or more planting boxes are arranged on the sinking parts in a sliding mode. The cross section of the planting box is of a T-shaped structure; uniformly distributed planting holes are formed in the lower plane of the bottom of the planting box; vertical rods are arranged at the bottom of the planting box corresponding to the two sides of the planting holes; a plurality of transverse rods which are longitudinally arranged are fixedly connected between the adjacent vertical rods in the width direction of the water channel; the cross rods and the vertical rods are staggered, and the cross rods, the vertical rods and the root systems of the emergent aquatic plants are staggered to form a net structure, so that some household garbage and fallen leaves in a water channel can be intercepted, concentrated fishing by sanitation workers is facilitated, the fishing speed is increased, and the effect of purifying water can be achieved; the problems that a plurality of local positions in an original water channel are often blocked due to garbage such as household garbage and fallen leaves, water cannot circulate, pollution is caused, and a large amount of manpower and material resources need to be consumed for dredging and purification are solved.

This utility model discloses an adaptive floating ecological pond system. A water level trough and an ecological sedimentation zone are arranged adjacent to each other, forming the main body of the ecological pond. The water level trough is used for water intake and to regulate and maintain the stability of the water level in the main body of the ecological pond. Its bottom is laid with a gravel layer, a sand layer, and a plain soil layer from top to bottom, and the side walls are constructed with permeable ecological concrete. Water in the water level trough flows towards the ecological sedimentation zone. An anti-siltation net is installed at the overflow point, and the anti-siltation net is fixed by a boulder capping the side wall adjacent to the ecological sedimentation zone. A water intake component that operates in conjunction with the water level switch is fixed to the side wall of the water level trough. A biological filter belt is arranged in a strip around the outer perimeter of the main body of the ecological pond. A floating platform is floated in the upper water layer of the ecological sedimentation zone, on which emergent plants are planted. The bottom of the ecological sedimentation zone is arranged with submerged plants, large-particle materials, a sand layer, and a plain soil layer from top to bottom. This utility model achieves adaptive adjustment of the ecological pond, improves its functionality, and reduces maintenance costs.

The invention provides a method for efficiently treating peculiar smell substances in a water body of an aquatic bird inhabiting water area in a wild animal park, and belongs to the technical field of water treatment deodorization. The method comprises stock processing and shift processing. Wherein the stock treatment method comprises the following steps: in bird pond treatment, a wave cracking nano mesoporous material is spread to improve a bottom mud habitat, meanwhile, a wooden tray is used as a basis, a bagged adsorption material is bound, and a nano biological reaction field is constructed. The displacement treatment method comprises the following steps: constructing an ecological diversion canal near a water area for inhabiting aquatic birds, constructing an artificial wetland by taking a wave splitting nano mesoporous material as a matrix in the ecological diversion canal and assisting with emergent aquatic plants, degrading peculiar smell substances and improving water quality, and then returning to the main bird pool. The method disclosed by the invention has the capabilities of keeping stable and long-acting peculiar smell removal and improving water quality.

The present application belongs to the field of environmental remediation technology, and particularly relates to a method for ecological remediation of heavily polluted water body with bottom mud. The method for ecological remediation of heavily polluted water body with bottom mud comprises the following steps: S1: putting heavy metal remediation agent into the water body; S2: putting slow-release type bottom mud remediation agent into the water body; S3: sequentially putting algae-controlling microorganism, photosynthetic bacteria and EM bacteria, and plankton into the water body; S4: planting aquatic plants according to water depth; planting emergent plants in the area with water depth less than 0.5 m, and planting submerged plants in the area with water depth greater than or equal to 1.5 m; and S5: when the coverage rate of aquatic plants in the water body is greater than or equal to 80%, putting aquatic animals into the water body. In the present application, slow-release type bottom mud remediation agent and heavy metal remediation agent are used to reduce the pollution of bottom mud, organic matter, etc., the transparency of the water body is then improved after reduction, aquatic plants are then planted, and finally aquatic animals are put into the water body, so as to construct a water ecological system and achieve the purpose of ecological remediation of the water body.

This invention discloses a device and method for simulating the effects of salinity stress during freeze-thaw cycles on the rhizome germination of emergent plants, belonging to the field of emergent plant germination experiments in cold and arid regions. The device includes an outdoor main pool and a laboratory auxiliary pool, connected by a closed channel with double gates. The bottom of the main and auxiliary pools is equipped with sliding tracks and transfer channels. Within the transfer channels, a translation screw, in conjunction with an electromagnet, drives the base frame to move without breaking ice. The main pool is equipped with freeze-thaw, salinity, and nutrient regulation modules. The method uses an L18 (3²×6¹) orthogonal array to design experimental combinations of freeze-thaw patterns, salinity, and nutrients. The base frame is transferred to the auxiliary pool without breaking ice, and stratified morphological and physiological indicators are measured simultaneously. Data are harvested at the end of the experiment, and variance analysis is performed. This invention achieves undisturbed monitoring of the experimental environment, accurately recreates the complex stress environment, quantifies the effects of the three factors, provides a scientific basis for the ecological restoration of saline-alkali wetlands, and is convenient to operate and highly repeatable.

This invention provides a method for constructing an ecological lake wetland aquatic plant and animal community system. The method includes dividing the lake to be restored into two zones according to water flow direction and terrain. Then, bottom sediment improvement, planting of submerged plants, addition of amendments, and algae-controlling zooplankton are carried out in each zone. Ecological floating islands are constructed and emergent plants are planted. Aquatic animals are introduced, followed by routine management. Water purification devices containing EHBR membrane modules are installed near the lake inlet and in areas with higher terrain. This constructs an ecological lake wetland aquatic plant and animal community, achieving long-term ecological restoration of the lake. Furthermore, the introduction of EHBR membrane modules can reduce organic pollutants in the lake at lower temperatures, significantly extending the restoration time and ensuring that the lake's water quality remains stable for an extended period.

This invention discloses a long-term phosphorus removal method for wetlands that couples anti-pollution and rhizosphere activation; belonging to the field of constructed wetland water treatment technology, the method includes the following steps: constructing a vertical flow constructed wetland reactor and filling it with lanthanum-chitosan-modified zeolite packing material; initially introducing slightly polluted river or lake water, using the packing material to release alkaline substances to maintain a pH of 11.0–12.0, and rapidly fixing phosphorus through chemical precipitation; after the effluent pH drops to the normal range, emergent plants are planted, using low phosphorus stress to induce the roots to secrete organic acids, neutralizing residual alkalinity and dissolving insoluble phosphorus on the packing material surface, thus regenerating active sites; simultaneously, utilizing the positively charged microenvironment of chitosan quaternary ammonium salt on the packing material surface and the synergistic antibacterial mechanism of the lanthanum-loaded nanostructure, microbial attachment and extracellular polymer secretion are inhibited, preventing bioclogging. This invention achieves efficient and long-term phosphorus removal from slightly polluted river or lake water through the synergistic effect of high-alkalinity start-up, rhizosphere activation, and anti-biofouling, extending the system's operating cycle.

The utility model discloses an ecological floating bed for water purification. Comprising an overwater floating bed formed by splicing a plurality of floating trays and used for planting emergent aquatic plants, a plurality of cable winding and unwinding structures detachably installed on the periphery of the overwater floating bed, and an underwater floating bed installed on the lower portion of the overwater floating bed in a multi-point connection mode through cables of the cable winding and unwinding structures and used for planting submerged plants. The floating disc comprises a main body with a round hole in the center, a flowerpot placed in the round hole and at least one pressing plate installed on the upper surface of the main body through a rotating shaft, and the bottom face of the pressing plate is higher than the top face of the flowerpot. According to the ecological floating bed for water purification disclosed by the utility model, the water floating bed for planting emergent aquatic plants and the underwater floating bed for planting submerged plants are arranged to form longitudinal purification, so that a frame purification system is formed, the water purification efficiency is enhanced, and the ecological floating bed can be used for purifying heavily polluted water.

The present invention discloses a lakeside zone for delaying water level drop, comprising a high water level line L high and low water level L low Several groups of transverse water storage belts are arranged between the lakes, each comprising a plurality of lake bubbles arranged obliquely from shallow to deep along the lakeside area, and transverse channels connecting adjacent lake bubbles. The lake bubbles at corresponding positions in the plurality of transverse water storage belts are connected to form a longitudinal water storage belt by longitudinal channels, and a one-way water inlet gate is provided at the connection between the top of the longitudinal channel and the bottom of the lake bubble. The lower level lake bubbles in the higher transverse water storage belt are connected to the upper level lake bubbles in the lower transverse water storage belt. The gaps between the lake bubbles are backfilled with soil to form a lakeside backfill area, and the lakeside backfill area is planted with emergent plants, floating-leaf plants, and submerged plants in descending order. Submerged plants are planted inside the lake bubbles. The present invention effectively extends the water flow distance in the lakeside area, slows down the rate of water level drop, and reduces the adverse effects of water level drop on the embryonic development stage of laying (sinking) sticky fish eggs.

This invention discloses a composite circulating constructed wetland effluent treatment system and method, belonging to the technical field of water treatment systems. The invention includes a vertical subsurface flow wetland, a horizontal subsurface flow wetland, and a surface flow wetland, connected in series. The effluent first passes through the water distribution unit of the vertical subsurface flow wetland, flowing upwards through a first multi-layer packing material. The initially purified effluent then enters the perforated pipe water distribution unit of the horizontal subsurface flow wetland, flowing horizontally through a second multi-layer packing material. The further purified effluent is then discharged into a circulating plug flow surface flow wetland. This invention combines three wetland systems and enhances the circulating surface flow wetland, with reasonable functional zoning. The effluent first enters the vertical and horizontal subsurface flow wetlands, where the removal of various types of organic matter, nitrogen, phosphorus, and other pollutants is enhanced. Subsequently, it enters the surface flow wetland, where submerged plants at the bottom and emergent plants at the surface work together to enhance water quality purification and improve the effluent purification effect.

The present invention belongs to the technical field of river water body treatment facilities, and in particular relates to an underwater forest ecological restoration structure. The present invention makes the ecological restoration effect of the underwater forest more prominent, flexible, and comprehensive by arranging a lifting suspension box unit, a lifting frame unit, and a porous strip unit on the water-retaining wooden pile unit. The present invention has the following advantages: First, the water-retaining wooden pile unit is high on both sides and low in the middle, so that the cleaning boat can pass normally, ensuring that the overall sewage treatment effect of the river is more prominent and comprehensive; second, the underwater forest structure includes submerged plants, emergent plants, and microorganisms, so that many water purification effects such as reducing the nitrogen and phosphorus content in the water, increasing dissolved oxygen, absorbing heavy metals, and settling suspended pollutants can be achieved.

The utility model belongs to the technical field of constructed wetlands, and relates to a secondary slope pond ridge of a constructed wetland. The system sequentially comprises a first-stage slope, a first-stage platform, a second-stage slope and a pond bottom, the first-stage slope, the first-stage platform, the second-stage slope and the pond bottom form an artificial wetland structure, the first-stage platform is horizontally arranged at the bottom of the first-stage slope, and the second-stage slope is an area which is connected with the first-stage platform and the pond bottom and is in transition from a shallow water area to a deep water area. Overgrowth of emergent aquatic plants is avoided, and the pond bottom is a deep water area; the depth of the water level within the range of 2.0 m near the shore is not larger than 0.7 m, the safety of nearby residents is improved, and the biodiversity of the wetland can be guaranteed.

The invention discloses a microbial electrolysis-ecological floating bed-based remediation device and method. Comprising a walking mechanism, an ecological floating bed, an underwater microbial electrolysis module and a microbial aeration biofilm culturing device, emergent aquatic plants with developed root systems are planted on the ecological floating bed, and a microbial electrolysis module and a microbial aeration biofilm culturing device are arranged at the bottom of the floating bed; the microbial electrolysis module is used for removing pollutants through microbial electrolysis denitrification, and a serial-parallel electrode connection mode is adopted, so that microbial growth sites are increased, and the electron transport capacity is improved; the microbial electrolysis-ecological floating bed technology is synergistically coupled, the degradation and remediation efficiency of pollutants is improved, the comprehensive purification capacity of the floating bed is improved, water purification and ecological restoration are achieved, and the device has the advantages of being reasonable in design, simple in structure, convenient to operate, efficient in remediation and capable of beautifying ecology.

This invention relates to a water purification system for funnel-shaped pond aquaculture, comprising an emergent plant purification zone and a submerged plant purification zone. The submerged plant purification zone is located downstream of the emergent plant purification zone. The emergent plant purification zone includes a planting pond with multiple parallel rice planting strips, which divide the planting pond into multiple lotus root planting strips. Each rice planting strip has planting baskets with porous side walls for planting rice. The lower part of the planting baskets is provided with rigid supports. The lotus root planting strips have a silt layer for planting lotus roots. The top of the rigid supports is higher than the silt layer. The side of the planting pond has an inlet and an outlet. The top of the planting baskets is lower than the outlet, which connects to the submerged plant purification zone. This invention improves upon existing ecological purification systems, enhancing their purification capacity at different water layers, thus reducing the footprint while increasing purification efficiency.

This invention belongs to the field of aquatic ecological restoration technology, specifically relating to a wetland buffer zone system based on a polyhydroxyalkanoate-induced denitrifying bacteria system. The system includes: a wetland buffer zone substrate with a sloping top surface; several emergent plants planted on the slope of the substrate; a denitrifying bacteria system comprising several polyhydroxyalkanoate strips embedded in the substrate; and several partitions with mesh openings embedded in the substrate. The slow-release properties of the polyhydroxyalkanoate and the periodic metabolism of the emergent plants ensure the long-term activity of the denitrifying bacteria, while the structural partitions ensure the system's stability under complex hydraulic conditions. This invention combines the advantages of efficient nitrogen removal, ecological restoration, and low maintenance costs, making it suitable for river and lake buffer zones, constructed wetlands, and other similar applications.

The invention relates to the technical field of sewage treatment and ecological restoration, in particular to a vertical subsurface flow wetland structure and a construction method.The vertical subsurface flow wetland structure comprises a water collecting wetland, water collecting and distributing channels and a collecting system, the water collecting and distributing channels are arranged on the two sides of the water collecting wetland, and the collecting system is arranged on the surface of the water collecting wetland; the catchment wetland is composed of a rammed earth layer, composite impermeable geotechnical cloth, a coarse sand backfill layer, a gravel filler layer and an emergent aquatic plant layer from bottom to top, rectangular zigzag protrusions are arranged on the top surfaces of the canal walls on the two sides of the catchment and distribution canal, and stepping water falling devices facing the inner side of the catchment and distribution canal are arranged in the intervals of the protrusions; the collecting system is composed of a longitudinal perforated water collecting main pipe and a transverse water collecting branch pipe. And the water collecting wetland is provided with a breather pipe system. The system has the beneficial effects that efficient sewage treatment and collaborative optimization of structural stability and ecological landscapes are realized, and the system has remarkable technical innovation and practicability and has a wide application prospect in the fields of sewage treatment and ecological restoration.

The invention discloses a device and a method for simulating influence of salinity stress in freezing and thawing periods on germination of rhizomes of emergent aquatic plants, and belongs to the field of germination experiments of emergent aquatic plants in cold and arid regions. The device comprises an outdoor main pool and a research laboratory auxiliary pool which are communicated through a closed channel with double gates, the bottoms of the main pool and the auxiliary pool are provided with sliding ways and moving ways, and translation lead screws in the moving ways are matched with electromagnets to drive a base frame to move without icebreaking; and the main pond is matched with a freeze thawing, salinity and nutritive salt regulation and control module. According to the method, an L18 (3 * 6) orthogonal table is adopted to design a freeze-thaw mode, salinity and nutritive salt three-factor experimental combination, a base frame is transferred to an auxiliary pool without icebreaking, layering morphology and physiological indexes are measured synchronously, harvesting is conducted at the last stage of an experiment, and data variance analysis is conducted. According to the invention, undisturbed monitoring of the experimental environment is realized, the composite stress environment is accurately restored, the three-factor effect is quantified, a scientific basis is provided for ecological restoration of the saline-alkali wetland, the operation is convenient, and the repeatability is high.

The utility model relates to ecological floating island technical field discloses a kind of three-dimensional ecological base floating island ecological restoration device, including annular support one, the inside of annular support one is provided with ecological floating island mechanism, the bottom of ecological floating island mechanism is provided with suspension mechanism, and the suspension mechanism is used to hang submerged plant, and ecological floating island mechanism includes multiple connecting rods, and the inside of annular support one is respectively fixedly connected in one end of multiple connecting rods, and the other end of multiple connecting rods is uniformly fixedly connected with same annular support two, and the side of multiple connecting rods is respectively fixedly connected with mounting bracket. In the utility model, by double-layer annular support, mounting bracket is planted emergent plant on floating island, hollow ring is put into microbial carrier, and reagent tank is released reagent through infusion tube and liquid outlet, and floating island is combined with reagent, and is matched with animal and plant common management mode, and the repair efficiency of ecological base floating island is improved.

The invention discloses an emergent aquatic vegetation photosynthetically active radiation absorption ratio estimation method, and belongs to the technical field of ecological remote sensing and environment monitoring. In order to solve the problems that the vertical layered structure of the emergent aquatic plant is complex and the photosynthetically active radiation absorption ratio is difficult to accurately estimate by underwater light propagation characteristics, the method mainly adopts a technical means of combining layered modeling and a two-flow approximate radiation transmission model, and integrates multiple scattering calculation, interface refraction and reflection correction and stalk contribution compensation. And accurate estimation of the FAPAR value of each structural layer of the emergent aquatic vegetation is realized. The method can improve the quantitative monitoring precision of the photosynthetic activity and the ecological function of the emergent aquatic vegetation, and is suitable for remote sensing application scenes of typical aquatic vegetation areas such as wetlands and lakes.

The ecological buffer zone comprises a land area, a hydro-fluctuation area and a water area which are sequentially arranged in the direction from land to the river channel, arbors and shrubs are arranged in the land area, a plurality of water storage grooves are formed in the hydro-fluctuation area, vegetation areas are formed in the positions, corresponding to the two sides of the water storage grooves, of the hydro-fluctuation area, and the water area is communicated with the vegetation areas. Connecting galleries are arranged between the adjacent vegetation areas, emergent aquatic plants, shrubs and forest trees are sequentially arranged in the vegetation areas from the water area to the land area, submerged plants and a pipeline system are arranged in the water area, one end of the pipeline system is located in the water area, and the other end of the pipeline system corresponds to the land area / hydro-fluctuation area. Through the arrangement of the water storage groove, part of river water can be stored into the water storage groove after the water level drops, so that a better living environment is provided for vegetation in the vegetation areas on the two sides, and the survival rate of the vegetation is improved.