11 results about "Ecological island" patented technology

This invention relates to a method for constructing a biodegradable mangrove ecological island based on dynamic tidal energy regulation, and an artificial island siltation device. The artificial island siltation device includes a bamboo gate system, a hemp rope net system, a fixed pile system, and a limiting system. A dynamic filtration structure is formed by the liftable bamboo gate and the hemp rope net. Utilizing the buoyancy difference and water flow velocity changes generated by tidal rise and fall, a synergistic effect is achieved: accelerating the passage of sediment-laden water during high tide and promoting siltation during low tide. A fully biodegradable material is used to construct a growing silt body. The buoyancy balance is regulated by the bamboo joint holes, ensuring the device remains suspended on the surface layer of the silt body. This allows for continuous siltation and elevation of the tidal flat, forming an artificial island that provides a site for mangrove seedling planting and meets the required daily sunrise duration for mangrove growth. The method and device of this invention have technical advantages such as low construction cost, dynamic adaptation to tidal changes, and avoidance of secondary pollution.

The present application relates to a kind of ecological island building fill unit, fill unit middle is provided with through hole, fill unit includes shell surface layer, middle structural layer and internal filling layer;Shell surface layer is made of neutral material, to ensure that the sea bottom water quality and related environmental indicators where fill unit is after sinking to bottom are not affected;Structural layer uses high-performance corrosion-resistant material, for bearing the water head pressure after fill unit sinking to bottom, unit stacking transmission pressure and mutual collision force, the whole outside of structural layer is covered by shell surface layer, and internal full-closed cavity is formed;Filling layer uses the full-closed cavity surrounded by structural layer, and fills crushed construction waste.The present application has the advantages of simple structure, large specific weight, easy production and transportation, etc.

The invention belongs to the technical field of agricultural biological control, and discloses a parasitic wasp cross-season release method and system based on an ecological island and application. The parasitic wasp cross-season release method based on the ecological island comprises the steps that S1, plants with the trapping effect on target pests are planted in 2-3 point positions per mu on the periphery of an annual crop field; s2, before field planting of the trapping plants, pest prevention and control treatment is carried out on the trapping plants; s3, after the trapping plants are planted, pest traps are arranged at the planting points in a centralized mode, and target parasitic wasps are put in the planting points in a centralized mode. By means of the cross-season release method and system for the parasitic wasps, the overwintering survival rate of the parasitic wasps can be increased to 58.7% from 9.2%, the parasitic rate of target pests in the next year is increased by 32.5%, the annual release frequency is reduced by 1-2 times, and the cost is reduced by 40%.

The present application belongs to the technical field of lake sediment treatment, and particularly relates to an ecological restoration method for lake sediment treatment, comprising the following steps: step 1: detecting water depth; step 2: sampling and detecting, sampling lake sediment to detect whether the sediment exceeds the I-class standard; step 3: excavating and maintaining, excavating lake sediment for maintenance treatment until the lake sediment is qualified; step 4: backfilling a central ecological island, backfilling a central ecological island at the central position of the lake; step 5: setting a drainage retaining plate, setting a vertical drainage retaining wall at the side wall of the lake and the side wall of the central ecological island; step 6: backfilling sediment, backfilling the sediment in the lake into a first layer of mud, a second layer of mud and a second layer of mud arranged in a ladder shape; and step 7: planting plants, planting plants on the backfilled sediment. The present application can effectively treat and utilize lake sediment, and achieve the effect of ecological restoration.

This invention relates to an ecological island construction method for land reclamation, comprising, from bottom to top, a reef base layer, a perforated rockfill layer, an island surface leveling layer, and a subsequently constructed concrete island surface. The reef base layer is laid on the reef bottom and is composed of artificial pebbles dumped into the sea. The perforated rockfill layer is laid on top of the reef base layer and is formed by the natural sinking and accumulation of reclamation units. The reclamation units are artificial pebbles with through holes in the center. The island surface leveling layer is laid on top of the perforated rockfill layer and is composed of artificial pebbles bonded together with concrete adhesive, filling the gaps in the lower perforated rockfill layer and providing a sealed space for the subsequent concrete island surface pouring. The subsequent concrete island surface is constructed by pouring concrete onto the surface of the island surface leveling layer, allowing it to penetrate the lower island surface leveling layer, mix with the graded artificial pebbles within the layer, and solidify to form a reclaimed island surface that can be exposed above the sea surface. This invention combines load-bearing and ecological functions, reducing the damage to the nearshore reef ecosystem caused by sand blowing, while also improving the flexibility of land reclamation construction.

The application discloses a sea flower planting method and a modified composite planting soil, and belongs to the technical field of aquatic plant planting and water ecological restoration. The method adopts a functional planting soil which is composed of humus soil, perlite, zeolite powder and calcium carbonate in a certain proportion, and the planting soil is pretreated by low-temperature plasma, then the planting soil is wrapped around the rhizome of sea flower seedlings, and is coated with degradable non-woven fabric, and after being made into an independent planting unit, is thrown into a target water body. By constructing a rhizosphere "ecological island" with an active repair function, the low-temperature plasma pretreatment constructs an "active library" in the matrix, can continuously release active substances, actively oxidizes and degrades rhizosphere organic pollutants, and converts part of nitrogen elements into a form that can be directly absorbed by plants, so that the active improvement of the rhizosphere microenvironment is realized.

The invention belongs to the technical field of ecological restoration, and discloses a Yangtze River middle and lower stream lake ecological reconstruction method, which comprises the following steps: strengthening lake region water system communication through a lake region base reconstruction project, and optimizing a lake region ecological base; in order to perfect a healthy lake ecosystem and enhance the ecological toughness of a lake area, a suitable and diversified growth environment needs to be built for aquatic plants. The current lake bottom is subjected to wetland earthwork finishing by utilizing engineering measures, and the flat-bottom lake terrain is transformed into various forms such as an ecological island, a lake, a marsh, a grass beach and the like, so that the habitat arrangement requirement is met.

The invention discloses a river channel ecological restoration method based on construction of an ecological island, and the method comprises the following steps: S1, bank protection pile foundation construction: after the bank protection pile foundation is completed, ecological island planting piles are constructed; s2, pile foundation construction of ecological island planting piles is conducted according to the construction drawing; s3, pile foundation construction of ecological island planting piles is completed through piling equipment; s4, steel pipe piles are installed around the ecological island planting piles, and then earthwork backfilling is conducted in the ecological island planting piles; the construction of the ecological island is completed; s5, after the ecological island is constructed, plants in the island are planted, and construction of the ecological island is completed; s6, river dredging and water quality adjustment are conducted, and river bottom sludge is cleaned through a pontoon; and S7, ecological soft enclosure construction is carried out, water quality adjustment treatment is carried out through an ecological soft enclosure, and river ecological restoration is completed. According to the method, by building the ecological island and arranging the ecological soft enclosure, the pollution load of the water body is rapidly reduced, a healthy aquatic ecological sequence is rebuilt, and the water body remediation speed is increased.

The application discloses a kind of progressive gain type repair city riverway's device's repair method, it includes floating garbage collection device, artificial ecological island and ecological blanket, artificial ecological island includes the base being located at riverway bottom, different particle sizes of stone are sequentially arranged in base along the river direction, water purification plant is planted on base, gas collected in the collecting chamber of the bottom of ecological blanket is connected with one end of gas guide pipe, the other end of gas guide pipe is stretched into below floating garbage collection device;The application realizes three-dimensional repair process, the uppermost layer is intercepted and collected by floating garbage collection device and the garbage floating on the water surface, the upper layer of water body is treated by artificial ecological island in the particulate pollutants in water body, the lower layer of water body and the area close to the bottom mud of riverway bottom are repaired by ecological blanket water body, and the methane generated by the bottom mud of riverway bottom is collected, is introduced below floating garbage collection device by gas guide pipe, the bubble formed drives the particulate pollutants mixed in water body to float upwards, prevent it from depositing in riverway bottom.

The invention relates to the technical field of ecological water treatment, in particular to an artificial wetland technology comprising a two-stage collaborative purification system and a dynamic regulation and control purification method. The system comprises an upstream ecological regulation and storage circulation unit which is composed of n regulation and storage ponds connected in series, a snake-shaped water flow channel is formed in each pond in a manner that spur dikes are staggered by 85-95 degrees, and the hydraulic retention time is prolonged to 36-48 hours; the downstream ecological purification unit comprises an ecological island, a zoning type purification filter bed and a three-level nutrition cascade ecological gain pond which are connected in parallel. The overall ammonia nitrogen / total phosphorus removal rate reaches 70% and 60% respectively, the bird inhabiting density is increased to 3.8 birds per hectare, and the aeration energy consumption is reduced. The invention solves the problems of low hydraulic efficiency, weak ecological function and response lag of the traditional wetland, and is suitable for pollution treatment and ecological restoration of rivers and lakes.

This invention relates to a method for constructing a near-natural vegetation landscape for urban wetland ecological islands. The city in question is located in the Yangtze River Delta region. The method includes the following steps: Step S1: Selecting several plant communities in the target area and its surrounding areas, and evaluating their naturalness using a modified AHP-entropy weight method, to obtain a reference native plant community suitable for constructing a near-natural vegetation landscape for the urban wetland ecological island; Step S2: Setting up several square sample grids within each reference native plant community, and identifying the climax pioneer species, successional sequence species, and successional climax species within each sample grid; Step S3: Using a heterospecific-heterogeneous diameter-class-simultaneous stratified mixed planting method, planting the climax pioneer species, successional sequence species, and successional climax species in the target area. This invention's vegetation landscape construction method is objective and scientific, has high ecological benefits, a rapid succession process, and low construction costs.