77 results about "Salt marsh cordgrass" patented technology

The invention provides a spartina alterniflora ecological environment damage value assessment method, medium and system, and belongs to the technical field of spartina alterniflora ecological environment damage assessment. A time-space damage analysis model based on a graph convolutional network is utilized to process a complex factor interaction relationship, a time weight factor correction model is established to quantify the dynamic change of a cumulative effect, and a biological inhibition factor effect model is combined to analyze the synergistic effect of multiple inhibition mechanisms such as local reed competition, natural enemy insect control, salt stress and the like. Accurate damage quantification and prevention and control strategy formulation are realized through the regional ecological environment damage value comprehensive evaluation model and the inhibition factor optimal configuration model, and the technical problem that the accuracy of ecological damage value evaluation is insufficient due to the fact that a multi-ecological factor interaction mechanism in the spartina alterniflora invasion process cannot be effectively analyzed in the prior art is solved.

The invention provides a spartina alterniflora invasion risk grade evaluation method, medium and system, and belongs to the technical field of spartina alterniflora invasion risk evaluation.Intertidal zone environment monitoring equipment is established to obtain multi-dimensional environment data in a tide period, and a tide inundation influence matrix and a tide emerging growth matrix are constructed; a matrix multivariate decomposition technology is combined with a minimum spanning tree algorithm to extract key environment factors and growth factors, a multi-layer neural network is utilized to construct a risk assessment model integrated with a gating weight adjustment mechanism, network parameters are dynamically adjusted through a tidal change influence coefficient, accurate quantitative assessment of the spartina alterniflora invasion risk is realized, and the risk assessment accuracy is improved. A risk early warning mechanism of differential monitoring frequencies is established, continuous improvement of a risk assessment model is realized based on iterative optimization of monitoring frequency adjustment coefficients, and the technical problem of insufficient accuracy of spartina alterniflora intrusion risk assessment in a tidal environment is solved.

The invention discloses a sea-land collaborative coastal wetland ecological quality remote sensing evaluation method under a spartina alterniflora expansion background, and the method comprises the steps: obtaining multi-source remote sensing data of a research region, and carrying out the preprocessing of the data, and obtaining a preprocessed remote sensing image; according to the preprocessed remote sensing image, obtaining a salt marsh vegetation space-time distribution diagram of the research area; remote sensing evaluation is conducted on coastal wetland land and water body ecological quality, land ecological quality remote sensing evaluation indexes integrate NDVI, WET, NDSI, LST and DHI, and water body ecological quality remote sensing evaluation indexes integrate TSM, WST, CDOM and Chl-a; and finally, quickly obtaining the ecological quality change of the affected area of the spartina alterniflora through a spartina alterniflora change condition mask evaluation result. The ecological quality remote sensing evaluation method provided by the invention is more suitable for the coastal wetland under the background of spartina alterniflora expansion, and a scientific basis is provided for making coastal wetland ecological management and protection strategies.

The invention discloses an integrated removal and treatment method for spartina alterniflora in a mudflat wetland. The integrated removal and treatment method sequentially comprises the steps that a construction operation area is divided; mowing the spartina alterniflora for more than three times in the construction operation area, and airing the crushed straws; performing anaerobic landfill on the straws into the first landfill ditch; carrying out more than two times of root system ploughing on the construction operation area which is already cut; a second landfill ditch with the depth not smaller than two meters is dug, and the ploughed spartina alterniflora root system is placed into the second landfill ditch; and covering soil and compacting the second landfill ditch. According to the method, the formation of mature seeds of the spartina alterniflora can be effectively prevented, the sexual propagation path of the spartina alterniflora can be effectively cut off, the surface of the first landfill ditch after landfill is no longer suitable for growth of the spartina alterniflora, mowing and ploughing are carried out in different areas at the same time, the spartina alterniflora is prevented from sprouting again, the treatment efficiency of the wetland spartina alterniflora is further improved, and the economic benefit is increased. Vegetative propagation of spartina alterniflora is avoided, repeated treatment of spartina alterniflora is avoided, and the treatment cost of spartina alterniflora is reduced.

The invention provides a method for removing and treating harmful vegetation such as spartina alterniflora by using phenological characteristics, and provides a natural-based solution (NbS) by using biological phenological characteristics in combination with actual growth conditions and engineering cases of the spartina alterniflora. On one hand, the control opportunity is accurately butted with the key phenological periods (such as a seedling period, an elongation period, a blooming period and a seed maturation period) of the spartina alterniflora, and on the other hand, the phenological difference between the spartina alterniflora and the reed of the same gramineae which is most likely to be mixed and difficult to distinguish is fully utilized, and the reed which is most fragile, most likely to kill and difficult to distinguish is selected. And intervention is carried out on a time window which has the minimum influence on an ecological system, so that the efficient, environment-friendly and sustainable treatment target is achieved.

The invention relates to the technical field of data processing, in particular to an ecological environment detection method and device based on multi-source data and a storage medium, and the method comprises the steps: collecting spatial distribution parameters and environmental stress parameters; constructing an intrusion space index based on the target plaque area and the target plaque boundary perimeter; constructing a habitat stress index according to the daily average submerging duration and the soil salinity of the root system layer; constructing a diffusion risk factor according to the plaque area of the associated region of the target plaque, constructing a risk index based on the diffusion risk factor, the intrusion space index and the habitat stress index, and constructing a plaque treatment priority; and constructing an adjustment coefficient according to the canopy temperature daily difference, constructing an update coefficient according to the seed removal rate and the adjustment coefficient, and updating the plaque treatment priority based on the update coefficient and the target plaque area. According to the method, accurate diagnosis, risk early warning and scientific sorting of treatment priorities of the spartina alterniflora invasion situation are realized.

The invention discloses a suaeda glauca rhizosphere growth-promoting bacterium preparation for targeted degradation of beach weeds and a preparation method of the suaeda glauca rhizosphere growth-promoting bacterium preparation. The preparation is prepared by compounding three specific functional strains, namely lactobacillus plantarum, bacillus atrophaeus and bacillus amyloliquefaciens, and supplementing with a composite carrier consisting of sodium alginate, humic acid and diatomite. The preparation method comprises the steps of strain activation, high-density fermentation, carrier pretreatment and spray adsorption forming. According to the invention, through the synergistic effect of multiple strains, on one hand, root exudates of an invasive plant Spartina alterniflora are degraded in a targeted manner, and weed suppression substances are secreted, so that the growth of the plant Spartina alterniflora is effectively inhibited; on the other hand, the strain is efficiently colonized at the rhizosphere of suaeda salsa to secrete growth-promoting substances and promote planting of suaeda salsa. The preparation is specially designed for a high-salt and high-humidity mudflat environment, the adversity survival and rhizosphere colonization capability of the strain is remarkably improved by the composite carrier, efficient coupling of biological control of mudflat invasive weeds and local vegetation ecological restoration is realized, and the preparation has the advantages of environmental friendliness, long lasting period and simplicity and convenience in application.

The invention discloses a management method for large-scale removal of spartina alterniflora, and relates to the technical field of ecological environment management, and the method comprises the following steps: S1, growth surveying and mapping: surveying the distribution density and plant height of spartina alterniflora in a to-be-managed area through an unmanned aerial vehicle remote sensing technology; the method comprises the following steps: S1, cutting spartina alterniflora with water before a flowering period in June to August, S3, directional ploughing: performing first ploughing along a direction perpendicular to a tidal creek by using a hydraulically-driven V-shaped deep ploughing plough, S4, insolating and dehydrating: keeping an exposed state of the ground surface after ploughing, and continuously insolating for 10 days by using natural light, S5, removing residues, S6, deeply burying in a layered manner, S7, performing biological inhibition, and S8, performing ecological restoration. Through the steps S1 and S3, accurate cutting and thorough crushing of main roots and transverse rhizomes of spartina alterniflora are achieved, the root cutting efficiency and range are greatly improved, and a foundation is laid for subsequent removal; through the steps S2 and S5, a full-dimension clearing system is formed, and the regeneration risk is remarkably reduced.

The application discloses a Spartina alterniflora rapid treatment method based on MICP and belongs to the technical field of Spartina alterniflora treatment. The Spartina alterniflora rapid treatment method based on MICP comprises the following steps: step one, cutting Spartina alterniflora by using a mower; step two, scattering quicklime powder into a treatment area, and turning the quicklime powder and the cut Spartina alterniflora straw into soil; step three, uniformly inserting a plurality of degradable hollow bamboo poles into the soil, connecting the hollow bamboo poles with a grouting pump, and injecting a reaction solution into the soil through the hollow bamboo poles; step four, after the injection of the reaction solution is completed, blowing a layer of sea mud on the soil; and step five, planting local plant species on the sea mud. The method can utilize microorganisms to induce the generation of calcium carbonate precipitation. After the calcium carbonate precipitation, the calcium carbonate precipitation is adsorbed in soil particle pores to block soil pores, a dense hardened layer is formed to hinder the growth of Spartina alterniflora, Spartina alterniflora can be treated rapidly at one time, and the rapid repair of a tidal flat wetland ecosystem can be realized.

The invention belongs to the technical field of relapse monitoring after secondary invasion in a spartina alterniflora treatment area, and provides a spartina alterniflora relapse monitoring and evaluation method and system, electronic equipment and a storage medium. The method comprises the steps of remote sensing image collection, normal area elimination processing, area risk data generation, unmanned aerial vehicle collection path making, color image and multiband image collection and high-accuracy monitoring and evaluation. According to the method, the normal area of the satellite remote sensing image is removed, information irrelevant to spartina alterniflora is directly removed, the complexity of data input of the model is reduced, and the sensitivity of the model to abnormal information is improved; through the low-accuracy monitoring model and the high-accuracy monitoring and evaluation model, the satellite remote sensing monitoring is rapid, the unmanned aerial vehicle monitoring is accurate, and the monitoring reliability is further improved through two-stage monitoring; by processing the color image and the multi-band image, the appearance characteristics of the spartina alterniflora are highlighted, the image characteristics are optimized, and the model monitoring accuracy is improved.

This invention belongs to the field of wastewater treatment. It provides a manganese-supported sulfur-rich Spartina alterniflora denitrification material, its preparation method, and its application. This manganese-supported sulfur-rich Spartina alterniflora denitrification material is obtained by alkali-modified sulfur-rich Spartina alterniflora or alkali-modified sulfur-rich Spartina alterniflora biochar loaded with manganese oxides. The manganese-supported sulfur-rich Spartina alterniflora denitrification material of this invention has abundant pores and a large specific surface area, which is beneficial for the adsorption, catalytic oxidation, and microbial biofilm formation of nitrogen pollutants. It is also rich in carbon, sulfur, and manganese, and can directly release organic carbon sources. It can achieve efficient denitrification through multiple processes such as coupled nitrification, manganese ammonium oxidation, heterotrophic denitrification, manganese autotrophic denitrification, and sulfur autotrophic denitrification. The manganese-supported sulfur-rich Spartina alterniflora denitrification material of this invention is fixed on the surface of hard aggregates, elastic or soft carriers, and can be widely used in constructed wetlands, biological filters, deep denitrification in wastewater treatment plants, rural and agricultural wastewater treatment, and initial rainwater purification.

The invention provides calcium modified spartina alterniflora charcoal as well as a preparation method and application thereof, and belongs to the technical field of soil improvement. The preparation method of the calcium modified spartina alterniflora charcoal comprises the following steps: (1) mixing spartina alterniflora straws with a calcium chloride solution, treating, collecting a solid part, and drying to obtain calcium treated spartina alterniflora straws; (2) performing pyrolysis, cooling and solid-liquid separation on the calcium-treated spartina alterniflora straw obtained in the step (1) to obtain carbonized calcium-treated spartina alterniflora straw; and (3) mixing the carbonized calcium-treated spartina alterniflora straw obtained in the step (2) with wood vinegar, performing ultrasonic treatment, collecting a solid part, and drying to obtain the calcium-modified spartina alterniflora biochar. According to the invention, the biomass resource of the coastal invasive plant spartina alterniflora is used as the raw material to prepare the biochar, and the biochar is used for treating the saline-alkali soil, so that the dual goals of waste resource utilization and saline-alkali soil treatment are effectively realized.

The invention discloses a coastal wetland scirpus mariqueter efficient recovery and management method based on deep ploughing treatment, which comprises the following steps: S1, seed pretreatment: soaking seeds and sand in a mass ratio of 1: 4 for 48 hours, and controlling the humidity to 40%; s2, selecting a sowing area and controlling sowing time: selecting a spartina alterniflora deep ploughing treatment area and sowing the spartina alterniflora in a low tide period before the first flood tide after deep ploughing; s3, according to a seeding rate and season adaptation strategy, 30 kg / hectare is adopted from April to July, and 45 kg / hectare is adopted from November to February of the next year; s4, dynamic monitoring and reseeding management: implementing monitoring management for two years after seeding; s5, recovering the effect evaluation index system; according to the method, the seed germination survival rate and community stability are remarkably improved, relapse of spartina alterniflora is inhibited, the vegetation coverage rate reaches 85% or above, the annual carbon reserve is increased by 0.2-0.3 ton / hectare, and the method is easy and convenient to operate, low in cost, high in applicability and suitable for large-area wetland ecological restoration engineering popularization.

The invention relates to the technical field of plant image processing, and discloses a spartina alterniflora identification method and system, and the method comprises the following steps: collecting an original multispectral image and an original visible light RGB image; carrying out image preprocessing; constructing a vegetation index data set; extracting texture features of the first principal component; constructing a multi-dimensional feature space; generating a multi-dimensional feature space only containing non-water surface feature categories; making classified training sample label data; the classification sensitive features in the multi-dimensional feature space after the water body is masked are optimized according to importance, and optimized features are obtained; constructing a convolutional neural network model; and inputting the classified training sample label data and the optimized features into a convolutional neural network model, and after processing of the convolutional neural network model, obtaining the probability of each ground feature category and outputting a ground feature classification result. According to the method, the problem that accurate identification of spartina alterniflora under the complex coastal wetland background is difficult to realize in the prior art is solved.

This invention provides a polylactic acid (PLA) multilayer composite active liner and its preparation method, comprising: synthesizing LDHs@CDs in situ using a one-pot method with Spartina alterniflora extract, metal salts, and urea; and constructing the outer layer of the active liner (LDHs@CDs / PVA) with a PVA substrate via electrospinning; simultaneously, constructing the intermediate active layer (MPN / PVA) of the active liner using MPN particles and a PVA substrate via electrospinning; and finally forming a PLA multilayer active composite liner based on a porous PLA base film. LDHs@CDs combine the structural stability of LDHs with the surface activity advantages of SA-CDs, which helps improve the material's dispersibility, interfacial interaction ability, and functional component loading efficiency; while MPN has a continuous and dense network structure, exhibiting good environmental responsiveness, bioactivity, and interfacial synergistic potential. Therefore, introducing LDHs@CDs and MPN into the preservation liner system endows the material with multiple functions such as moisture regulation, antibacterial, antioxidant, and responsive regulation, while enhancing its practical application value in fresh food preservation.

The application provides a method and device for evaluating aboveground biomass of Spartina alterniflora based on coverage and height. The method provided by the application comprises the following steps: setting a first quadrat in a Spartina alterniflora growth area, collecting all plants in the first quadrat, measuring the height and dry weight of each plant, establishing a first allometric growth relationship model between the height and dry weight of each plant based on the height and dry weight of each plant, setting a second quadrat in the Spartina alterniflora growth area, recording the quadrat coverage, average height and plant number in the second quadrat, calculating the total dry weight of the quadrat and converting the total dry weight into aboveground biomass, establishing a second allometric growth relationship model between the coverage, height and aboveground biomass based on the quadrat coverage, average height and aboveground biomass, matching a corresponding target allometric growth relationship model based on the scale and data conditions of a region to be evaluated, inputting corresponding data of the region to be evaluated into the target allometric growth relationship model, and calculating the aboveground biomass of the region to be evaluated.

This invention provides a method for controlling Spartina alterniflora and promoting natural mangrove restoration based on rolling mulching and in-situ mud slurry, belonging to the field of ecological control technology. The method involves mechanically rolling Spartina alterniflora to flatten most of it and press it into the tidal flat soil. Then, a biodegradable mulch film is laid on top, and mud slurry is extracted and applied to form a mud slurry cover layer. A mangrove seed interception and planting device is then installed on the mud slurry cover layer to prevent mangrove seeds from growing naturally, thereby reducing the cost of Spartina alterniflora control and improving the efficiency of Spartina alterniflora control.

This application discloses a novel green breakwater structure for soil carbon reduction, comprising a trapezoidal slope, boulders, breast wall, water diversion pipe, drainage ditch, chamber, sealing stones, rack, lifting strip, manhole cover, round hole, first one-way valve, second one-way valve, first rubber sealing gasket, second rubber sealing gasket, trough, insert block, guide cavity, top trough, iron block, permanent magnet, first spring, mounting bracket, round pipe, hollow blade, fine hole, connecting groove, injection cylinder, third one-way valve, threaded rod, square hole, rubber sealing gasket, connecting ring, baffle, square rod, fixing block, connecting pipe, piston disc, rubber sealing sleeve, sphere, disc, injection pipe, sealing disc, second spring, coastline, wall, treatment area, nut, connecting block, and bolt. The advantage of this application is that it can control Spartina alterniflora at coastal locations, slow down the decomposition rate of soil organic carbon, and inhibit soil organic carbon decomposition and CO2 emissions.

The invention provides a high-low position spartina alterniflora removing device. The high-low spartina alterniflora removing device comprises a rack; the advancing assembly is arranged on the lower portion of the rack and used for driving the rack to move; the first pulling-out assembly is arranged at the front end of the rack and used for pulling out spartina alterniflora with the preset height or above; the second pulling-out assembly is arranged below the first pulling-out assembly and used for pulling out spartina alterniflora with the height smaller than the preset height; and the collecting assembly is arranged on the rack and used for collecting the spartina alterniflora pulled out by the first pulling-out assembly and the second pulling-out assembly. The problem that in the prior art, the removal rate of spartina alterniflora is low is solved.

The present invention provides a method, medium and system for assessing the ecological environment damage value of Spartina alterniflora, belonging to the technical field of Spartina alterniflora ecological environment damage assessment. The present invention introduces an ecological damage diffusion equation to describe the propagation coupling mechanism of multiple factors, utilizes a spatiotemporal damage analysis model based on a graph convolutional network to process complex factor interactions, establishes a time weight factor correction model to quantify the dynamic changes of cumulative effects, combines a biological inhibitor effect model to analyze the synergistic effects of multiple inhibition mechanisms such as local reed competition, natural enemy insect control, and salt stress, and achieves accurate damage quantification and prevention and control strategy formulation through a regional ecological environment damage value comprehensive assessment model and an inhibitor optimization configuration model, thereby solving the technical problem that the existing technology cannot effectively analyze the interaction mechanism of multiple ecological factors during the invasion of Spartina alterniflora, resulting in insufficient accuracy in ecological damage value assessment.

The device comprises a machine body, a movable arm, a bucket rod, a deep digging barrel, a pushing assembly, a mowing assembly and a compacting assembly, the movable arm is movably arranged on the machine body, the bucket rod is hinged to the end of the movable arm, the deep digging barrel is connected to the end of the bucket rod, and the pushing assembly is arranged on the deep digging barrel. The pushing assembly is installed on the bucket rod and connected with the deep digging barrel, the mowing assembly is arranged at the front end of the machine body, and the compacting assembly is arranged at the rear end of the machine body. By arranging the mowing assembly, a high-speed rotating blade arranged on the mowing assembly is used for cutting plants on the earth surface and rapidly removing spartina alterniflora plants on the ground; the deep digging barrel is arranged to be combined with the inverted tassel block structure to go deep into mud flat soil, a spartina alterniflora root system is completely dug, regeneration is prevented, soil covering and compacting are conducted on a digging area through the compacting assembly, photosynthesis of residual rhizomes is blocked, and secondary growth is inhibited.

The invention provides a method for promoting growth of a mangrove forest transplanted in north and improving a carbon sink function, and belongs to the technical field of ecological restoration. The method comprises the following steps: cradling spartina alterniflora recurrent in a mangrove forest area moved in the north, and collecting plant straws after cradling; carrying out in-situ crushing on the plant straws; the method comprises the following steps: mixing crushed plant straws with in-situ mud flat soil in proportion, doping fine sand and coarse sand to form first composite slurry, and spraying the first composite slurry to a planting area of a mangrove forest transplanted in north to form a first composite slurry layer; after the first composite slurry layer is stabilized, collecting in-situ soil, adding chitosan, stirring, doping fine sand and coarse sand to form second composite slurry, and spraying the second composite slurry onto the first composite slurry layer to form a second composite slurry layer; and an in-situ soil layer added with shell chippings is laid on the surface of the second composite mud layer. The method not only realizes resource utilization of invasive plants such as spartina alterniflora, but also provides a sustainable ecological restoration scheme for mangrove forest north migration.

The present application relates to the field of ecological restoration of coastal salt marsh wetlands, and specifically discloses a recovery mode for high-tide beach areas based on a variety of salt marsh vegetation communities, comprising: selecting or artificially constructing a high-tide beach habitat suitable for salt marsh vegetation recovery; determining the planting location and distribution of the salt marsh vegetation combination according to the habitat conditions; laying out a device for preventing damage by pigs before transplanting; tracking, monitoring and maintaining the growth of the salt marsh vegetation combination after planting to evaluate its survival rate; the present application combines native plants such as reeds, and plants reed canary grass and tamarisk together to enrich the shore plant in a way to form multi-level plant buffer zones such as "grass-grass" and "grass-shrub" to enhance the stability and resilience of the coastline, and at the same time achieve the purpose of improving the carbon sink effect. This configuration and combination recovery mode breaks the previous recovery mode mainly based on a single species, and provides new strategies and modes for native plant replacement after the removal of spartina alterniflora and the development of coastal wetland ecological restoration technology.

The invention relates to the technical field of coastal wetland ecological restoration, and discloses a spartina alterniflora mowing, ploughing and deep burying treatment method suitable for beach wetlands, which comprises the following steps: dividing a working area into a plurality of working units; cradling the spartina alterniflora of each working unit; a drainage system is excavated on the periphery of the operation area, and the drainage system communicates with the tidal creek; the interior of each working unit is divided into a plurality of ditch burying areas, and the step of conducting ploughing and deep burying construction on the ditch burying areas in sequence comprises the substeps that surface soil at the ditch burying areas is ploughed; stripping surface soil and stacking to a non-deep ploughing area; deep soil in the ditch burying area is excavated, and the deep soil is stacked to the deeply ploughed area; topsoil is backfilled to the buried ditch and compacted layer by layer; and deep soil is backfilled to the buried ditch and is compacted layer by layer. According to the invention, smooth and continuous construction operation of construction machinery can be ensured. In the ploughing and deep burying construction, surface soil and deep soil are stacked separately and are not mixed, the requirement for anaerobic burying is met, relapse of spartina alterniflora is avoided, and the treatment effect is lasting and reliable.

The invention relates to the field of coastal salt marsh wetland ecological restoration, and particularly discloses a high tidal flat area restoration mode constructed based on multiple salt marsh vegetation communities, which comprises the following steps: selecting or artificially constructing a high tidal flat habitat suitable for salt marsh vegetation restoration; according to habitat conditions, determining planting positions and distribution of salt marsh vegetation combinations; arranging an anti-alternanthera philoxeroides device before transplanting and planting; after planting, the growth condition of the salt marsh vegetation combination is tracked, monitored and maintained to evaluate the survival rate of the salt marsh vegetation combination; according to the method, the local plant reed is combined, the arundo donax and the tamarix chinensis are planted in a matched mode, multi-layer plant buffer areas such as grass-grass and grass-shrub are formed in the mode of enriching the coast zone plants, so that the stability and toughness of the coast line are enhanced, and meanwhile the purpose of improving the carbon sink effect is achieved; the configuration combined recovery mode breaks through the previous recovery mode taking a single species as a main body, and provides a new strategy and mode for replacing local plants after the spartina alterniflora is removed, developing a coastal wetland ecological recovery technology and the like.

The invention discloses a 25% imidazole hydrochloride spartina alterniflora prevention and treatment and ecological environment evaluation technology, which comprises a spartina alterniflora prevention and treatment process and an ecological environment evaluation process which are executed in sequence, and the spartina alterniflora prevention and treatment process provides reference data for the ecological environment evaluation process. The ecological environment evaluation process carries out evaluation based on the implementation process and result of the spartina alterniflora prevention and treatment process; the control process of the spartina alterniflora comprises the steps of investigation and treatment area characteristics, pesticide application preparation, pesticide preparation and spraying and follow-up management and protection, and in the pesticide preparation and spraying step, 25% imidazole hydrochloric acid pesticide is sprayed. According to the 25% imidazole hydrochloric acid spartina alterniflora prevention and treatment and ecological environment evaluation technology, 25% imidazole hydrochloric acid is matched with different area formulas, precise spraying and complete-period management and protection are matched, spartina alterniflora can be efficiently killed, and relapse is prevented; the concentration residue and the habitat are monitored, the surrounding culture area is covered, and it is ensured that no biotoxicity and extra ecological risks exist.

The utility model is applicable to the technical field of spartina alterniflora treatment, and provides spiral spartina alterniflora treatment equipment, which comprises an outer shaft body, a plurality of cutting blades, a plurality of spiral blades and a plurality of spiral blades, a plurality of auxiliary blade groups are arranged in the outer shaft body, each auxiliary blade comprises a fulcrum shaft fixedly connected to the outer shaft body, a left auxiliary blade and a right auxiliary blade, and the left auxiliary blade and the right auxiliary blade are rotationally connected to the fulcrum shaft; the left sleeve piece and the right sleeve piece are arranged at the two ends of the inner shaft body respectively, the left sleeve piece and the right sleeve piece are each provided with an extension sleeve piece, and each extension sleeve piece is provided with a plurality of movable supporting plates; insertion rods rotationally connected with the left sleeve piece and the right sleeve piece are arranged on the two crank shifting rods in a sliding and penetrating mode, and a wave ring base is arranged on the fixing plate. Therefore, the spartina alterniflora cutting device not only can automatically cut spartina alterniflora, but also can prevent the spartina alterniflora from being wound on the outer shaft body, so that the service life of the device is prolonged, and the working efficiency is improved.

The present application relates to the field of microbial technology, and particularly relates to a strain of Matuura sphingolipid bacteria HPD1 for degrading high-efficiency fluazifop-butyl acid and application thereof, the Matuura sphingolipid bacteria HPD1 is classified and named as Novosphingobium mathurense , which was preserved in the China General Microbiological Culture Collection Center on May 9, 2026, with a preservation number of CGMCC No. 38610 and a preservation address of No. 1, Beichen West Road, Chaoyang District, Beijing. The Matuura sphingolipid bacteria HPD1 and the microbial inoculant thereof can effectively degrade high-efficiency fluazifop-butyl acid in a wide pH and temperature range, can be used as excellent functional bacteria for degrading pesticide residues, and can be used in the biological remediation of residual high-efficiency fluazifop-butyl acid in water bodies, contaminated soil, coastal wetland sediments and Spartina alterniflora treatment areas, and can provide functional bacteria resources that can be repeatedly obtained and environmentally friendly microbial remediation technology.

The utility model discloses a device for preventing relapse of spartina alterniflora by utilizing tidal energy. The device comprises an intercepting net, a foam floating rod and an anchoring device, the end, facing the seawall, of the intercepting net is fixed to the mud flat through the anchoring device, and the end, facing the sea area, of the intercepting net is connected with the foam floating rod. Through the design of the intercepting net and the foam floating rod, germination and rooting of the spartina alterniflora can be restrained through natural changes of tide, photosynthesis of the spartina alterniflora is reduced, root systems of seedlings are loosened along with flushing of tide water, the survival rate of the seedlings is reduced, and therefore relapse of the spartina alterniflora is effectively restrained. The cost and the workload for preventing and treating relapse of the spartina alterniflora can be obviously reduced, and the application prospect is wide.