47 results about "Salt marsh cordgrass" patented technology

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 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 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.

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 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.

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 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 invention discloses a coastal saline-alkali soil improver based on spartina alterniflora and a preparation method and application thereof, and belongs to the field of invasive plant recycling and saline-alkali soil improvement. The preparation method of the modifier comprises the following steps: cleaning, drying and crushing a spartina alterniflora plant, mixing with montmorillonite, mixing with one of a potassium carbonate solution, a potassium formate solution or a potassium carbonate-potassium formate mixed solution, and carrying out a hydrothermal reaction at 180-200 DEG C for 4-6 hours; after the reaction, adjusting the pH value to 8-9, adding kaolinite for solid-liquid separation, then adjusting the pH value to 3-4, centrifuging, cleaning and freeze-drying to obtain a final product. The modifier is in a dissolved state in the saline-alkali soil, takes lignin compounds as main components, and can effectively reduce the pH of the soil, remarkably increase the content of soluble organic matters, enrich beneficial microbial communities and accelerate degradation of organic pollutants in the soil. By applying the modifier, the resource utilization of the spartina alterniflora and the ecological improvement of the coastal saline-alkali soil can be synchronously realized, and the modifier has the advantages of simplicity and convenience in operation, lasting effect and environmental friendliness.

The invention discloses a method for dynamically monitoring the vegetation coverage of an intertidal zone in an ecological restoration shoreline, belongs to the technical field of coastal zone ecological monitoring, and solves the problem of data distortion caused by tidal boundary drift, mixed vegetation types and topographic relief in monitoring of the vegetation coverage of the intertidal zone. Satellite and unmanned aerial vehicle images are synchronously acquired; dynamically delimiting an intertidal zone range based on real-time tidal data, generating a boundary vector layer and calculating a total area; overlapping the images and the boundaries, inputting the images and the boundaries into a convolutional neural network model, and outputting mangrove forest, salt marsh herbaceous plants and spartina alterniflora classification results; performing morphological optimization on a classification result, and calculating an initial vertical projection area; arranging sampling grids according to gradient distribution, actually measuring a vegetation canopy projection area and generating error correction factor optimization model parameters; using an optimization model to re-classify, calculate and calibrate the projection area; and finally calculating the effective coverage degree. The method is mainly used for accurate monitoring and acceptance authentication of vegetation coverage of coastal zone ecological restoration engineering.

The invention discloses a Spartina alterniflora drug control technology, and relates to the technical field of coastal wetland ecological management, the early stage of bud differentiation of Spartina alterniflora is monitored through dynamic opportunity selection, and the soil salinity is adjusted by selecting a time window 2 hours after ebb tide and with a sunny day probability greater than 80% in combination with tide forecast. The method comprises the following steps: preparing a composite synergistic agent containing 25% imazapyr, soya bean lecithin, sodium humate and other materials, uniformly spraying the composite synergistic agent to leaf surface and root soil of plants by adopting high-pressure atomization equipment after ebb tide, supplementing an agent containing double nano titanium dioxide in case of rainfall, and reducing environmental interference and improving agent absorption efficiency through tide synergy and salinity adjustment; the adhesive force and the durability are enhanced through the synergistic effect of all the components in the composite agent; high-pressure atomization is combined with a calculation model to ensure uniform deposition of liquid medicine at the rhizome junction; the cloudy and rainy emergency mechanism dynamically responds to sudden weather, and the control continuity is maintained, so that the overall control effect, the resource utilization rate and the environmental adaptability are improved.

The application discloses a method for clearing and controlling recurrence of Spartina alterniflora, which comprises the following steps: firstly, arranging straw stacking fields and landfill pit positions in a Spartina alterniflora clearing area; secondly, mowing, recycling and airing the aboveground part of the Spartina alterniflora before a flowering period; thirdly, excavating the landfill pits according to the terrain, pushing the surface soil containing seeds and residual roots into the landfill pits, covering and compacting the soil, and further performing rotary tillage on the root dense positions to break the roots; and finally, restoring the beach by using the excavated deep earthwork or external planting soil, and planting native vegetation after the terrain is stable. The application mainly utilizes mechanical equipment, is simple and easy to implement, can form a strong interference habitat for the Spartina alterniflora, effectively solves the problem of recurrence of the Spartina alterniflora, and improves the success rate of plant replacement.

The application discloses a kind of remote sensing determination methods of Spartina alterniflora removal time, characterized in that the high-resolution No.1 image in the continuous time period before and after Spartina alterniflora removal covering monitoring area is collected, and the four indexes corresponding to each image pixel are calculated;Remove invalid pixels in each image one by one and construct effective pixel index time series;Using harmonic function to establish the observation model of each effective pixel index before Spartina alterniflora removal, calculate the change amplitude of each effective pixel in the Spartina alterniflora removal time period, and determine the change detection threshold;By comparing the size of the change amplitude of each effective pixel and the change detection threshold, determine whether Spartina alterniflora is removed, if removed, determine the removal time;The advantage is that the method can realize accurate monitoring of Spartina alterniflora removal process in a long period of time, realize the automatic determination of Spartina alterniflora removal time and range.

The invention belongs to SaHKT1; the invention relates to the technical field of application of SaHKT1, 8 genes, in particular to SaHKT1; the invention relates to an application of a gene 8 of Spartina alterniflora SaHKT1, Spartina alterniflora SaHKT1; according to the application of the gene 8 in improving the salt tolerance of plants, the plants are rice, wheat, corn, cotton or other crops needing salt tolerance improvement, and the spartina alterniflora SaHKT1; the nucleotide sequence of the coding region of the gene 8 is as shown in SEQ ID NO: 6.

The invention relates to the technical field of soil amendments, in particular to an anti-scouring high-carbon-sequestration composite amendment and a preparation method and application thereof.The preparation method comprises the following steps that 1, spartina alterniflora is subjected to impurity removal, airing and crushing and then subjected to pyrolysis, cooling, grinding, sieving, washing and drying under the anaerobic condition, and pretreated biochar is obtained; 2, dipping the pretreated biochar in a calcium chloride solution, stirring, dropwise adding a sodium sulfate solution, and performing suction filtration, washing and drying to obtain calcium sulfate modified spartina alterniflora biochar; step 3, dissolving chitosan in an acetic acid solution, stirring, adding humic acid and a water-retaining agent, heating and stirring to prepare a coating solution; step 4, drying the calcium sulfate modified spartina alterniflora biochar to obtain pretreated modified biochar; stirring and mixing the pretreated modified charcoal and jute fibers, spraying a coating liquid, granulating, and screening to form primary particles; and drying and curing the primary particles to obtain the anti-scouring high-carbon-sequestration composite modifier.

The utility model discloses a mudflat wetland spartina alterniflora mowing device which comprises an excavator capable of being placed on an excavating ship to work and a mowing assembly, the mowing assembly is arranged at the front end of an excavator bucket of the excavator to cut off stems and leaves of spartina alterniflora, the mowing assembly comprises a rectangular blade, one end of the blade is welded and fixed to the excavator bucket, and the other end of the blade is welded and fixed to the excavator bucket. The other end of the blade is far away from the excavator bucket, and the excavator bucket can be separated from the mowing assembly to carry out ploughing and deep burying operation. According to the mudflat wetland spartina alterniflora mowing device, stems and leaves of spartina alterniflora can be efficiently mowed, the mowing height is controllable and uniform, the physical removal cost of the mudflat wetland spartina alterniflora and the danger of manual operation in the mudflat wetland are remarkably reduced, and the working efficiency is improved; the mowing device is combined with or separated from the bucket on the excavator to achieve integrated operation of mowing, ploughing and deep burying of the spartina alterniflora stems and leaves, the danger that a common excavator falls into sludge is avoided, and high efficiency and thoroughness of spartina alterniflora treatment are guaranteed.

This utility model discloses a shading device for controlling Spartina alterniflora based on photovoltaic pile foundations, including a column and a U-shaped limiting component. The column has a slot at its top, and a fixing ring is connected to the slot. The lower end of the column is tapered. Threaded holes are formed at both ends of the fixing rings. A steel wire rope is arranged between two sets of fixing rings, and a movable head is rotatably connected to the end of the steel wire rope. Second buckles are evenly fixed to the four sides of the upper surface of the shading cloth. A gap-sealing cloth is placed between adjacent sets of shading cloths. The first, second, and third buckles have identical structures. This shading device for controlling Spartina alterniflora based on photovoltaic pile foundations can effectively block gaps in the shading cloth after it is laid, preventing sunlight from shining through these gaps and improving the shading effect of the device, by evenly arranging the second buckles on the four sides of the upper surface of the shading cloth in conjunction with the use of the gap-sealing cloth.

The utility model discloses a spartina alterniflora harvester which comprises a main machine body in which an engine is arranged, and further comprises a cab arranged on the main machine body; the conveying assembly is obliquely arranged on the main machine body, is close to the cab and comprises a header conveying belt and a first supporting frame, one end of the first supporting frame is connected with the conveying assembly, the other end of the first supporting frame is connected with the main machine body, and the feeding end of the header conveying belt is lower than the discharging end of the header conveying belt; the cutting assembly is arranged at the feeding end of the conveying assembly, is used for cutting spartina alterniflora and comprises a cutting knife and a collecting roller, the cutting knife is connected with the collecting roller, and the collecting roller is connected with the header conveying belt. By arranging the collecting box, grass seeds of the spartina alterniflora can be prevented from leaking to the mud flat and being transported along the way, mass propagation of the spartina alterniflora can be avoided, the header conveying belt and the conveying belt in the collecting box are made of stainless steel grid materials, the spartina alterniflora cut by the cutting assembly is drained through the stainless steel grid conveying belt, and the weight of the spartina alterniflora is reduced; and the resource consumption is reduced.

The invention belongs to the technical field of heavy metal contaminated soil remediation, and provides phosphate / iron composite modified spartina alterniflora biochar as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a mixed solution of Fe2 (SO4) 3 and K2HPO4 with spartina alterniflora straws, and sequentially filtering and drying to obtain phosphate / iron composite treated spartina alterniflora straws; and pyrolyzing the phosphate / iron composite treated spartina alterniflora straws to obtain the phosphate / iron composite modified spartina alterniflora charcoal. The phosphate / iron composite modified spartina alterniflora biochar prepared by the invention can release phosphate and heavy metals to form stable phosphate mineral precipitates, so that the bioavailability is reduced, the mobility of the heavy metals in soil is reduced, and the absorption of plants to the heavy metals is reduced.

The invention provides an early warning method for spartina alterniflora invasion, and relates to the technical field of environment monitoring. According to the early warning method for spartina alterniflora invasion, spartina alterniflora invasion early warning equipment is used, and the early warning equipment comprises two sets of ship bodies. Cruise type monitoring is carried out on the coastal wetland around the coastal wetland where spartina alterniflora grows through an existing mature unmanned ship, water surface floating objects are lifted to the water surface through a material lifting structure so that a high-definition camera can carry out image collection, the collected images are analyzed through a controller, and the analysis result is accurate. When spartina alterniflora seeds and spartina alterniflora hybrid crop seeds are recognized, early warning is immediately sent to a control room through a communication antenna, early warning can be carried out when the seeds floating along with stormy waves do not reach the shore, the early warning effect is fully achieved, large floating objects on the water surface cannot enter the space between the two sets of ship bodies through holes, and the service life of the ship bodies is prolonged. A collecting basket is arranged to receive the spartina alterniflora seeds and the spartina alterniflora hybrid crop seeds.

The invention belongs to the technical field of application of SaNHX5 genes, and particularly relates to application of the SaNHX5 genes in improvement of plant salt tolerance, the SaNHX5 genes are derived from spartina alterniflora, and the coding sequence of the SaNHX5 genes is shown as SEQ ID NO: 1. The amino acid sequence of the protein coded by the SaNHX5 gene is as shown in SEQ ID NO: 2.

The invention discloses a remote sensing judgment method for the removal time of spartina alterniflora, which is characterized by comprising the following steps of: collecting a high-score No.1 image covering a monitoring area and within a continuous time period before and after the removal of the spartina alterniflora, and calculating four indexes corresponding to pixels of each image; removing invalid pixels in each image one by one and constructing an effective pixel index time sequence; establishing an observation model of the index of each effective pixel before the spartina alterniflora is cleared by utilizing a harmonic function, calculating the variation amplitude of each effective pixel in a spartina alterniflora clearing time period, and determining a variation detection threshold value; judging whether the spartina alterniflora is cleared or not by comparing the variation amplitude of each effective pixel with the variation detection threshold value, and if the spartina alterniflora is cleared, determining the clearing time; the method has the advantages that accurate monitoring of the spartina alterniflora clearing process can be achieved in a long time, and automatic judgment of the spartina alterniflora clearing time and range is achieved.

The application relates to a cutting device for Spartina alterniflora management and relates to the technical field of Spartina alterniflora management. A bottom plate is fixedly connected with four connecting plates at the bottom. The combination of a guide plate and a vertical plate can optimize the cutting path of Spartina alterniflora, can ensure that the cut grass can smoothly enter the subsequent processing link, the design of a spiral plate can concentrate the cut Spartina alterniflora to a specified area through rotation, the possibility of grass seed scattering is reduced, the addition of a shell can prevent grass seeds from splashing during transportation, through the setting of a first rotating motor, during the cutting process, the first rotating motor runs, the conveying belt can realize stable transmission function, then through the limiting of the guide plate and the vertical plate, the cut Spartina alterniflora can be transported into the spiral plate for storage, so that the grass seeds of the Spartina alterniflora can be prevented from scattering on the way, and the secondary diffusion of the Spartina alterniflora is avoided.

The application discloses a method for repairing a salt marsh wetland by using a netted nutrient planting block, fixes Scirpus mariqueter seeds in the planting block, and fixes the planting block on a biomass fiber net framework, so that a closed water and soil environment is formed by reeds planted around the planting block, the newly planted Scirpus mariqueter is prevented from being affected by wind and waves, the germination rate and survival rate of the repairing plants are improved, the growth of the plants in the saline-alkali environment is limited, the ecological environment of the saline-alkali beach is restored, the soil quality is improved, the growth of the plants is promoted, the ecological damage problems caused by the degradation of the salt marsh wetland and the expansion of Spartina alterniflora are solved, meanwhile, environmental burdens in the ecological repairing process are avoided, and a sustainable and efficient solution is provided for long-term ecological restoration of the salt marsh wetland.