53results about How to "Improve the ecological environment" patented technology

The utility model relates to an ecological seawall structure, which belongs to the technical field of bank protection engineering and comprises a seawall foundation, the seawall foundation comprises a slope top and a slope body, and a retaining wall structure is arranged at the joint of the slope top and the slope body. An arc-shaped wave dissipation ridge is arranged at the position, spaced by a certain distance from the retaining wall structure, of the top end of the slope body, a cushion layer is laid at the position, located between the arc-shaped wave dissipation ridge and the retaining wall structure, of the top end of the slope body, and the cushion layer comprises a dry stone cushion layer and a broken stone cushion layer which are sequentially arranged from top to bottom. A first block stone cushion layer is laid at the position, located on the side, away from the retaining wall structure, of the arc-shaped wave dissipation ridge, of the top end of the slope body, extends to the bottom of the slope body and further extends outwards to be connected with a second horizontal block stone cushion layer, and a first concrete retaining wall is arranged at the joint of the first block stone cushion layer and the second block stone cushion layer. The accropode is laid at the top end of the second block stone cushion layer and located on the outer side of the first concrete retaining wall. The safety of the seawall can be effectively guaranteed, and the stability of the seawall structure is guaranteed.

The invention relates to the technical field of mine restoration, and discloses a mine ecological restoration vegetation configuration method, which comprises: 1, soil improvement: carrying out soil improvement on a mine wasteland, adding an organic fertilizer and a soil improvement agent, and improving the soil structure and fertility; step 2, vegetation selection: selecting herbaceous, woody and shrub plants which are drought-resistant, barren-resistant, developed in root system, easy to survive and have a landscape effect according to the actual situation of the mining wasteland; 3, vegetation configuration planning is conducted, a scientific vegetation configuration plan is made, it is ensured that various plants such as trees, shrubs, grass, flowers and rattan are reasonably matched, and a multi-layer ecological community is formed; 4, planting preparation is conducted, the selected vegetation is pretreated, and meanwhile substrate materials needed by planting are prepared. The invention provides a vegetation configuration method for mine ecological restoration, and solves the problems of single vegetation selection, severe soil conditions and lack of systematic planning during traditional vegetation planting.

The invention discloses a water environment treatment material based on composite minerals and aquatic plants and a preparation method and application thereof, and belongs to the technical field of water environment treatment. The water environment treatment material comprises the composite minerals and the aquatic plants, the composite minerals can adsorb and convert heavy metal ions, ammonia nitrogen and organic pollutants, and by combining the absorption of the aquatic plants on nutrient substances and the decomposition effect of microorganisms on the pollutants, the concentration of the pollutants in a water body can be remarkably reduced, and the water quality index is improved; the problems of water eutrophication, heavy metal pollution, organic pollution and the like are effectively solved; the photosynthesis of the aquatic plants can absorb a large amount of carbon dioxide, carbon elements are transferred into the bottom mud for long-term storage, meanwhile, the existence of the complex minerals indirectly promotes the carbon sequestration effect of the aquatic plants, the carbon sequestration capacity of the whole water body ecological system is improved, and finally the multiple purposes of water body pollution treatment, bottom mud remediation, carbon sequestration and sink increase and the like are achieved. The health and the stability of a water body ecological system are improved.

The invention relates to the technical field of soil improvement, and discloses a soil improvement fertilizer and application thereof in saline-alkali soil improvement, a preparation method of the soil improvement fertilizer comprises the following steps: mixing cow dung, chicken manure and straw, and carrying out anaerobic fermentation to obtain an organic fertilizer; mixing soybean, corn and seaweed, performing enzyme catalysis treatment, and extracting to obtain an amino acid liquid fertilizer; soaking brown algae in hot water, filtering and concentrating to obtain a seaweed extract; uniformly mixing silicate minerals, natural gypsum powder, the organic fertilizer, the amino acid liquid fertilizer and the seaweed extract, and sequentially drying and crushing to obtain the soil improvement fertilizer. According to the soil improvement fertilizer disclosed by the invention, various components such as the organic fertilizer, the amino acid liquid fertilizer, the seaweed extract, the silicate minerals and the gypsum powder are meticulously proportioned, so that the soil fertility can be remarkably improved, the soil structure is optimized, the growth of plant root systems is promoted, the stress resistance of plants is enhanced, and the sustainable utilization of soil is improved for a long time.

This invention relates to the field of plant genetic engineering technology, and more particularly to... SsNHX1 and SsSOS2 Dual-gene plant expression vector and its application in improving salt tolerance in alfalfa. The plant expression vector uses pCAMBIA1300 as its backbone and inserts genes derived from Suaeda salsa. SsNHX1 Genes and SsSOS2 It is constructed from genes. SsNHX1 Genes and SsSOS2 The CDS coding sequence of the gene is shown in SEQ ID NO:1 and SEQ ID NO:2 of the sequence listing. Using Agrobacterium tumefaciens EHA105-mediated transformation, the vector was introduced into the leaves of sterile alfalfa seedlings. Positive transgenic plants were obtained through co-culture, callus induction differentiation, and PCR identification. The advantage lies in the synergistic effect of the two genes, which effectively enhances the salt tolerance of alfalfa, enabling it to grow normally under 200–300 mM NaCl stress, providing a new solution for forage cultivation in saline soils.

The invention belongs to the technical field of ecological restoration and environmental protection, and provides a plant system-based three-dimensional desertification control method, which comprises the following steps of S1, collecting geographical, climate, soil and vegetation data of a desertification area, and evaluating and analyzing the desertification area by using a remote sensing technology; s2, establishing a three-dimensional planting mode of combining arbor, shrub and grass, and forming a multi-layer vegetation structure; s3, soil improvement is performed on the desertification area, and an ecological monitoring system is constructed; s4, constructing a reservoir and a water cellar facility, and performing water resource management; s5, performing forbidding protection on the desertification area; s6, dynamically monitoring the desertification area, and evaluating the desertification control effect according to the monitoring result; the overall survival rate of vegetation is increased through a vegetation three-dimensional planting mode, the ecological diversity is increased, the stability and resistance of an ecological system are improved, and effective prevention and treatment of desertification and comprehensive recovery of the ecological system are achieved.

The invention discloses an application of a volatile substance in prevention and control of agricultural insect chilo suppressalis, and provides an application of (E)-2-hexenal (trans-2-hexenal) in prevention and control of chilo suppressalis for the first time, so that chilo suppressalis adults can be effectively repelled, the egg laying amount of chilo suppressalis female insects can be inhibited, and the prevention and control of chilo suppressalis can be realized. The natural enemy insects attracting the chilo suppressalis comprise egg parasitic wasp trichogramma japonicum and larva parasitic wasp cotesia chilo suppressalis. The (E)-2-hexenal can reduce the egg quantity of chilo suppressalis in the field, reduce the occurrence cardinal number of the chilo suppressalis, play a prevention and control role and reduce loss before pests cause harm, and meanwhile, the (E)-2-hexenal can attract natural enemy insects of the chilo suppressalis, so that natural enemies in the natural environment can be fully utilized and protected, and the economic benefit of the chilo suppressalis is improved. The improvement of the chilo suppressalis prevention and control effect and the green prevention and control are realized. (E)-2-hexenal is a component in rice volatile matters, and compared with chemical pesticides, (E)-2-hexenal is more beneficial to the ecological environment.

The invention relates to the technical field of environment management, and discloses an eco-friendly urban environment design implementation method, which comprises the following steps: S1, constructing a distributed clean energy system: realizing local energy production, storage and allocation through micro-grid and regional collaboration; s2, establishing an environment monitoring and response system: acquiring data through a sensor network, and implementing hierarchical response; s3, resource demand prediction and scheduling are realized: resource demands are predicted by using a dynamic model, and multi-level scheduling optimization is carried out; s4, establishing an ecological building and community treatment system: intelligently regulating and controlling the temperature and humidity of the building, and constructing a community water resource circulation system; and S5, designing a public participation incentive platform: providing an incentive mechanism to encourage environmental protection behaviors. Through the distributed clean energy management system, localized production, storage and flexible allocation of energy are realized, and meanwhile, the energy is intelligently scheduled by adopting an optimization algorithm, so that the supply and demand balance of the energy is realized, and the utilization rate of the clean energy is improved.

The invention relates to the technical field of riparian zone ecological restoration, and discloses a riparian zone staged progressive ecological restoration method which comprises the following steps: dividing a dry area and a wet area according to a riparian zone shoreline, respectively laying a base layer protective layer and a double-layer base, laying an aquatic plant lawn and fixing the root after water flow erosion, deposition operation and standard judgment, and finally, carrying out ecological restoration. And finally, observing the rooting state and carrying out maintenance and complementary planting, and synchronously collecting data in each link and adjusting as required. Through staged refined operation, in combination with core links such as data acquisition, analysis and judgment, base laying optimization, deposition regulation and control and plant maintenance, orderly promotion of ecological restoration of the riparian zone is achieved, and pertinence and continuity of the restoration process are guaranteed.

This invention discloses a river water ecological restoration and purification device, belonging to the field of river water purification technology. It includes a base plate with an air cushion installed at its bottom. Above the base plate, from front to back, are sequentially arranged an ice-breaking and salvage conveying component, a collection and separation component, a water purification component, and an oxygenation component. The collection and separation component contains a vibrating filter component. A drive component is located between the ice-breaking and salvage conveying component and the collection and separation component. A propeller is fixedly installed at the rear of the base plate, and a power component for unmanned operation is installed on the top of the base plate. This invention, through its integrated ice-breaking and salvage conveying component, collection and separation component, vibrating filter component, water purification component, and oxygenation component, highly integrates multiple functional modules such as ice breaking, salvage, conveying, solid-liquid separation, water purification, and oxygenation, filling the gap left by the inability of most cleaning equipment to be used in winter and achieving uninterrupted river ecological restoration.

The utility model relates to a root growth guiding device for mine restoration plants, which comprises an external main body serving as an external structure of the guiding device and a root guiding device. Wherein the outer main body of the guiding device is cylindrical, the outer main body of the guiding device is divided into a two-petal type structure through a longitudinal dividing line, the two-petal type structure is fixed and separated through a connecting hole and a straw connecting line, and vent holes and water permeable holes are evenly distributed in the outer main body; and the inner main body is an inner structure of the guiding device and is a moisture supply device. Wherein the internal main body of the guider is a permeation tube, the longitudinal bottom of the permeation tube is closed, and the longitudinal top end of the permeation tube is provided with a detachable two-way joint. The root system is guided to be inserted into rock wall gaps to grow, so that the root system is combined with the rock wall, the plant survival rate is improved, the plant stably and continuously grows, the plant root system completely plays a role in soil fixation and slope protection, and the greening effect is improved. The mine ecological environment is improved, and potential ecological functions are restored as soon as possible.

The present invention belongs to the technical field of lake and reservoir water ecology improvement and restoration, and discloses a method for suppressing thermal stratification of reservoirs by stimulating water flow oscillations through daily regulation and scheduling of reservoirs. The daily regulation and scheduling process of the reservoir causes gravity waves to form in the main stream of the reservoir, and induces high-frequency water flow oscillations in the tributary bay; the water level in the bay has high-frequency fluctuation characteristics through the water flow oscillation process, and the flow velocity of the water body in the bay is intermittently increased or reduced; the water body is intermittently mixed through the periodic high-frequency oscillation process, causing high-frequency fluctuations in water temperature, thereby achieving the effect of suppressing water temperature stratification. The present invention generates water level fluctuations in front of the dam by regulating the downstream flow of the hydropower station, triggering gravity waves in the main stream, and then inducing high-frequency water flow oscillations in the tributary bay. The present invention can effectively improve the density stratification characteristics of deepwater lakes and reservoirs. Compared with the currently commonly used engineering measures such as stratified water intake, water pumping and aeration, the present invention has the advantages of simple operation, easy implementation, and obvious effect.

The utility model relates to the technical field of solid waste regeneration, in particular to an ecological grass planting paving structure based on solid waste regenerated soil, which comprises a bearing grating, the bearing grating comprises a supporting vertical plate, a top expansion block is fixed at the top of the supporting vertical plate, a bottom expansion block is fixed at the bottom of the supporting vertical plate, and the supporting vertical plate is enclosed to form a geometric ring wall. An arch-shaped hole is formed in the side wall of the supporting vertical plate and located in the lower portion of the supporting vertical plate, grid holes of the bearing grid are used for being filled with regenerated soil, a sand breaking layer is arranged below the bottom supporting block, and a gravel layer is arranged below the sand breaking layer. According to the paving structure, heavy objects such as vehicles can be borne and supported through the bearing grids, the gravity of the vehicles is dispersed to the lower portion, ecological grass planting can be conducted through regenerated soil between the bearing grids, nutrient substances in solid waste are fully utilized for plant growth, and then the ecological environment is improved.

The present invention relates to a bacterial agent for degrading isoproturon and a preparation method thereof. The bacterial agent uses wheat biochar as a carrier and carries Sphingomonas spp. Sphingobium sp . Made from IPU-1 bacteria; Sphingomonas spp. in the bacterial agent Sphingobium sp. The wet bacterial content of IPU‑1 is 20 g / L and the biochar content is 20 mg / mL; the bacterial agent is in the form of black powder with a rough surface, many pores, good adsorption effect and good permeability. Sphingobium sp. ) IPU‑1 bacteria has a good degradation effect on isoproturon. Free bacteria are easily lost in the environment and have poor environmental adaptability. Therefore, the adsorption and fixation of wheat straw biochar into a bacterial agent is actually applied to the field of isoproturon bioremediation technology, which has great bioremediation significance and economic benefits.

The utility model relates to the field of ecological environment protection, and discloses a water conservancy riverway ecological environment restoration device which comprises a fixed supporting plate, an adjusting seat is slidably connected to the interior of the fixed supporting plate, a rotating rod is rotatably connected to the interior of the adjusting seat, and two transmission belts are arranged on the outer wall of the rotating rod. A filter screen is arranged between the two transmission belts, a fixing assembly is arranged at the bottom of an adjusting seat, a rotating shaft is fixedly connected to the top of the adjusting seat, a sliding groove is formed in a fixed supporting plate, and a push rod is slidably connected to the interior of the fixed supporting plate; the fixing assembly comprises a sliding rod and a clamping block, and one end of the sliding rod is fixedly connected to the bottom of the adjusting base. The river channel environment is effectively restored, the operation process is simple and easy to understand, the efficiency of river channel garbage cleaning work is greatly improved, and an efficient and practical solution is provided for improvement of the river channel ecological environment.

A combined type erosion gully slope protection structure belongs to the technical field of water and soil conservation engineering, aims to solve the problem that an existing erosion gully slope protection structure cannot give full play to soil fixation and water retention effects of plant root systems, and comprises an ecological layer, a supporting layer, a protective layer and a water interception groove. The ecological layer is laid on the slope surface of the slope body in the gradient extending direction of the slope body, the supporting layer is laid on the ecological layer, the ecological layer and the supporting layer are fixed to the slope body through a plurality of anchor rods, the protective layer is laid on the supporting layer and fixed to the supporting layer through a plurality of supporting plates, and the water intercepting groove is fixedly embedded in the top of the slope body. And the water intercepting groove is arranged close to the protective layer. The slope protection structure is mainly used for the erosion gully.

The invention discloses an urban water area sewage purification device, and belongs to the technical field of sewage treatment, the urban water area sewage purification device comprises a cylinder, the top of the cylinder is provided with an access cover, the side wall is connected with a water inlet pipe and a water outlet pipe, the water inlet is connected with a grating assembly, and the grating assembly is provided with a chemical agent supply mechanism; at least two submersible pumps are installed at the bottom in the barrel, the output ends of the submersible pumps are connected with pressure pipelines, and control valves and check valves are arranged on the pressure pipelines. An intelligent control cabinet is integrated on the top of the barrel and electrically connected with the liquid level sensor and the submersible pump. The grating assembly is arranged at the water inlet, large-particle impurities in sewage can be effectively intercepted, the impurities are prevented from entering the cylinder to block a pressure pipeline or abrade a submersible pump, the equipment fault occurrence rate is remarkably reduced, and the service life of the device is prolonged; meanwhile, the grid assembly and the chemical agent supply mechanism are arranged cooperatively, so that the agent can be fully mixed with the sewage subjected to preliminary filtration, the reaction efficiency of the agent is improved, and the subsequent purification effect is enhanced.

This utility model relates to the field of water conservancy engineering technology, and in particular to an algae collection device, comprising a first outer shell, a second outer shell fixedly connected to the top of the first outer shell, the first and second outer shells being interconnected, two collecting rollers movably installed inside the first outer shell, two drive shafts movably installed inside the first outer shell, and a cutting blade holder fixedly connected to the bottom of the drive shafts movably; a second drive shaft movably installed inside the second outer shell, multiple stirring blocks fixedly connected to the outer wall of the second drive shaft, an auger movably installed inside the second outer shell, and a drain pipe opened at the bottom of the second outer shell; a drive assembly is installed between the collecting rollers, drive shafts 1 and 2, and the auger. This utility model, through the drive assembly driving the collecting rollers, cutting blade holder, stirring blocks, and auger to work together, achieves the collection of algae with roots, chopping and processing, and separation of chopped algae from sediment, solving the problem of incomplete algae removal in existing algae collection devices, and contributing to the improvement of the river ecological environment.

The invention discloses a method for accelerating straw degradation in a composting process, and belongs to the technical field of compost degradation. The invention aims to solve the difficult problem of slow straw degradation in the composting process, including the technical problems of high difficulty in degrading cellulose and hemicellulose and complex process. The invention provides a method for accelerating straw degradation in a composting process. Mecobalamin is added in the composting process for a fermentation reaction. The efficient and green utilization of the straws is realized, the ecological environment is improved, and the environmental pollution treatment is promoted.

The utility model provides an ecological side slope for collecting and purifying runoff sewage of a road section in a water environment sensitive area of a road, belongs to the technical field of roads, effectively treats runoff pollution of the road surface through physical, chemical and biological effects, and finally achieves the purpose of purification to enter a river channel or directly infiltrate into soil. Compared with a single artificial percolation system, the multi-stage series combination mode can bring better hydrological regulation and control, pollution adsorption and purification effects. The device does not need to occupy the ground space, is low in operation cost, can effectively remove runoff pollutants on the road surface, can improve the stability of the side slope, promotes the growth of vegetation, and improves the ecological environment.

The application discloses a preparation method of modified tailing-based artificial soil, which comprises the following steps: cleaning and soaking tailings with a weak alkali solution to obtain pretreated tailings; dehydrating sludge and grinding the sludge to a suitable particle size to obtain pretreated sludge; mixing the pretreated tailings and the pretreated sludge to obtain modified tailings; subjecting sawdust to biological drying and composting treatment by using specific microbial agents with high-temperature resistance and decomposition capacity under a specific period to obtain fermented sawdust; and mixing the modified tailings and the fermented sawdust at a certain ratio, adding a proper amount of water, placing the mixture in a natural environment, controlling temperature, humidity and light conditions, and performing a certain period of natural balancing process to obtain the tailing-based artificial soil. The artificial soil has good structural stability and can realize plant reclamation and ecological restoration of tailings.

The invention discloses a bacterial composition for promoting growth of panax notoginseng and accumulation of saponin, the bacterial composition is composed of three strains, the three strains comprise Arthrobacter nicotinovorans SQ 15, Bacillus velezenis SQ 24 and Pseudomonas nitroreducens SQ 63, the strains are preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation numbers are respectively CGMCC No.31366, CGMCC No.31369 and CGMCC No.31367. The invention further discloses a preparation method of the bacterial composition for promoting growth of panax notoginseng and accumulation of saponin. Three beneficial bacteria with a disease-resistant or growth-promoting function are provided, growth of panax notoginseng tuberous roots is promoted, the saponin accumulation amount in panax notoginseng roots is increased, panax notoginseng root rot can be prevented, and the quality of panax notoginseng is improved.

The invention relates to the technical field of information acquisition devices, and particularly discloses an information acquisition device for big data, which comprises a meteorological detector main body; the collecting mechanism is located above the meteorological detector main body; the detection mechanism is located on one side of the collection mechanism; when the weather detector is used, the weather detector body can determine the agricultural irrigation water spraying amount by collecting the rainwater amount, and after the collecting mechanism collects rainwater, when the irrigation nozzle conducts irrigation, the irrigation nozzle sprays a little water into the collecting barrel till the irrigation water spraying amount and the precipitation amount reach the irrigation infiltration supply coefficient; when the collection barrel is full, the detection mechanism detects that the irrigation amount is sufficient, the detection mechanism is driven by an electromagnet to stop irrigation, water in the collection barrel is discharged through the release mechanism, rainwater collection and irrigation in the next time are facilitated, the precipitation amount and the irrigation amount are recorded through seasons and climate, and a big data basis is provided for agricultural reclamation and ecological environment improvement.

This invention relates to the field of genetic breeding technology, and specifically discloses a type of Populus tomentosa. PdbRAP2 Genes and their applications, the aforementioned PdbRAP2 The CDS sequence of the gene is shown in SEQ ID NO.1, and the amino acid sequence it encodes is shown in SEQ ID NO.2. This invention utilizes genetic engineering to overexpress *Populus sanguisorbus*. PdbRAP2 Genes have improved the drought resistance of Populus tomentosa.

This invention provides a high-calorific-value biomass fuel made from agricultural waste and its preparation method, belonging to the field of biomass energy utilization technology. The biomass fuel comprises agricultural waste and cellulase or lignin; the amount of cellulase or lignin added is 0.5%-1.0% of the agricultural waste. The preparation method is as follows: the agricultural waste is dried and coarsely crushed, then sieved, magnetically separated, and air-separated before fine crushing to obtain powdered raw material; cellulase or lignin is added to the powdered raw material, mixed evenly, and then extruded to obtain the high-calorific-value biomass fuel. The preparation method of this invention employs a combination of two-stage crushing, multi-stage sieving, intelligent magnetic separation, and air separation, as well as multi-stage drying, intelligent moisture control, and dry-wet material ratio. The prepared biomass fuel has a stable calorific value and high energy density, significantly reduced pollutant emissions, strong agricultural waste digestibility, low raw material cost, and stable supply, thus promoting energy structure transformation.

The invention discloses a natural landscape revetment and a construction method thereof, and belongs to the technical field of landscape engineering, and the main body structure of the revetment sequentially comprises a rammed earth layer, a soil layer layered rolling layer and a sandy soil layer from bottom to top; 3-5 pieces of decoration scene stone are arranged in an upstream proper area every 12-15 m; a 2.5-3.5 m aquatic plant planting area is arranged in the midstream; the method comprises the following steps: arranging a wood pile at the downstream, arranging sandy soil, a wood bundle and the wood pile at the upstream area of the wood pile, adopting wickers of 1-5cm and 40-50cm in length as the wood bundle, nailing the wood pile into the soil by 1.5 m according to the distance of 1m, scion, and binding the wood bundle and the wood pile. According to the revetment, natural elements and ecological functions are combined, the construction method is simple and feasible, the stability of the revetment can be effectively enhanced, meanwhile, the attractive and natural landscape effect is created, and good ecological benefits and landscape value are achieved.

The application belongs to the technical field of vegetable planting, and discloses an ecological planting method for big green onions, which takes a polyglutamic acid-silicate mineral grid fertilizer as a core, combines a green auxiliary prevention and control reagent and scientific field management, and specifically comprises the steps of soil pretreatment, seedling transplanting, precise fertilization in stages, green disease prevention and control, and whole-process ecological field management. The application realizes the synergistic unity of soil improvement, green disease prevention and control and yield improvement for the big green onions in a heavy-rotation plot, significantly improves the physicochemical indexes such as soil pH and bulk density, greatly reduces the number of fusarium, controls the total disease incidence of the big green onions within 7.3%, increases the yield per mu to more than 4390 kg, and is green, environmentally friendly, sustainable, simple, scalable, and suitable for the ecological planting of the big green onions in the heavy-rotation plot for more than 3 years.

The utility model discloses a road slope protection structure which comprises a plurality of waste tires fixedly connected to a slope, planting soil is arranged in the waste tires, climbing green plants are planted in the planting soil, and a protection net covers the upper surfaces of the waste tires. The slope protection device is simple in structure, the waste tires can be effectively recycled and applied to slope protection, construction is convenient, fast and efficient, construction cost is low, the period is short, cost and human input are greatly saved, the waste tires can have a good buffering effect on falling rocks, the falling rocks are prevented from rolling to a road to hurt pedestrians, and driving safety is improved. Green plants can be planted in the waste tires, so that the ecological environment of the side slope is improved, and the stability of the side slope is improved. Meanwhile, the upper surface of the waste tire is covered with a protective net, falling rocks are further blocked, and meanwhile climbing green plants can conveniently crawl and grow.

The invention belongs to the technical field of port engineering, and particularly relates to a wharf and water intake structure based on a semi-submerged caisson and a pile foundation and a construction method.The structure comprises the semi-submerged caisson, the wharf pile foundation, a wharf upper structure and a water intake head, the bottom of the wharf pile foundation is fixedly connected with the semi-submerged caisson, and the top of the wharf pile foundation is fixedly connected with the wharf upper structure; the semi-submerged caisson, the wharf pile foundation and the wharf superstructure form a whole; the semi-submerged caisson adopts an arrangement mode that water is discharged from a rear-row compartment and is submerged in a front-row compartment, and a water taking head is arranged in a water area of the front-row compartment of the caisson in an embedded mode. A large-range permeable structure is formed below the wharf surface, so that the effects of enlarging the water taking range and reducing the normal speed of water flow at the front edge of the wharf are achieved; the construction method of the structure is simple and convenient, the structure can be applied to a gravity type along-shore wharf needing to be provided with a water intake, efficient and intensive utilization of shoreline resources is achieved, and meanwhile the safety of berthing and unberthing operation of ships at the front edge of the wharf is improved.

The application discloses a compostable and degradable seedling paper base system and container and a preparation method thereof, and belongs to the technical fields of horticultural seedling containers, paper base forming and biodegradable barrier coating. The system integrates a paper fiber container, an anti-blocking drainage structure and a polyhydroxyaliphatic acid ester-based biodegradable barrier coating. In view of the industry pain point that traditional containers are difficult to maintain wet strength and degradation, the scheme designs a directional failure zone, which ensures excellent wet resistance and structural stability during seedling period, and significantly improves root penetration efficiency and compost disintegration speed after transplanting. Compared with conventional full coverage technology, the system effectively solves the problems of orifice plugging and water accumulation and mold growth, realizes precise timing control of functions from protection to degradation. The product does not contain fluorides, meets the strict ecological compliance requirements, and achieves excellent seedling quality and environmental safety with better material utilization.