62 results about "Intertidal area" patented technology

The invention discloses an ecological shoreline diagnosis method and system based on hydrological-biological communication, and is applied to the technical field of water environment ecological restoration and shoreline health assessment. Comprising the following steps: dividing intertidal zones of a shoreline research area, and generating uniformly distributed sampling points in each tidal zone; extracting a plurality of indexes related to hydrological and biological connectivity, and constructing a comprehensive hydrological-biological connectivity state index through principal component analysis; dam feature data of a shoreline area are obtained, correlation analysis and collinearity screening are carried out, and key shoreline features are screened through a random forest algorithm; constructing a mechanism connectivity index based on a circuit theory; constructing and training a Bayesian network prediction model; and performing connectivity state diagnosis, attribution analysis and restoration scheme effect simulation on the target shore section by using a Bayesian network prediction model. By coupling hydrological and biological connectivity, static element evaluation is changed into dynamic ecological process diagnosis, and dominant factors are accurately positioned.

The invention relates to the technical field of flux modeling, in particular to an intertidal zone greenhouse gas flux modeling method fusing spatial variation and time series, which comprises the following steps: S1, acquiring spatial variation data of an intertidal zone target area, and outputting a spatial variation feature set; s2, acquiring time sequence data of an intertidal zone target area, and outputting a time sequence feature set; s3, calculating a spatial weight factor based on the spatial variation feature set, and outputting spatial weight distribution; s4, calculating a time dynamic factor based on the time sequence feature set, and outputting a time dynamic sequence; s5, constructing a greenhouse gas flux model, and outputting a flux estimation value; and S6, outputting a greenhouse gas flux distribution diagram of the target area of the intertidal zone according to the greenhouse gas flux model. According to the method, a coupling mechanism of a spatial variation factor weight field and a time dynamic factor sequence is introduced, the flux estimation model of space-time joint regulation is constructed, and the estimation precision of the model in different regions and different meteorological conditions is improved.

The invention relates to an explicit non-structural two-dimensional hydrodynamic model construction method and system, and the method comprises the steps: constructing a non-structural grid, recognizing a dry and wet state based on critical water depth, and carrying out the adaptation of a complex boundary; on the basis of a conservation type two-dimensional shallow water equation, a finite volume method is adopted to discretize a control equation, a pressure item and a speed item are synchronously solved through an explicit pressure-speed coupling mechanism, and flow field prediction correction and water depth updating are achieved; and in combination with optimization technologies of adaptive time step length, vectorization acceleration and the like, performing time iterative calculation and outputting a visual result. The method has the advantages that numerical oscillation is effectively suppressed under an explicit co-location grid, an implicit or iterative algorithm is not needed, and simulation precision and stability are improved; the calculation efficiency is improved through algorithm optimization, and large-scale grid simulation is supported; the method adapts to complex boundaries such as estuaries and coasts, and provides a scientific basis for comprehensive treatment of the estuaries and the coasts and ecological protection and restoration of intertidal zones.

The invention discloses a self-adaptive split type ocean boundary layer dynamic monitoring device, relates to the field of intertidal zone monitoring, and aims to solve the problem that existing equipment is difficult to meet long-term, three-dimensional and stable monitoring. The device comprises a main body and a buoy unit, the buoy unit is divided into three layers of platforms which are respectively provided with atmosphere monitoring equipment, water level wave monitoring equipment and water body monitoring equipment, and atmosphere-water body multi-element three-dimensional monitoring can be realized; the main body further comprises a hollow pipe, a micro floating body, a step foot, a sediment sampling pipe, a power generation floater and a supporting mechanism, the step foot assists the device in moving in a complex terrain, the sediment sampling pipe obtains a time sequence sample, the power generation floater utilizes tidal power generation to supply power, and the supporting mechanism adjusts adsorption force and bearing force through a triangular pyramid riveting structure, barbs and acoustic ranging to ensure that the device is stable. The device does not need to be frequently put and recycled, can stably monitor for a long period, and provides comprehensive data for intertidal zone environment research.

The invention discloses an intertidal zone identification method and related equipment, and belongs to the technical field of remote sensing identification, and the method comprises the steps: obtaining a remote sensing image of a target area; fitting different wavebands of the remote sensing image based on the pixels to obtain a time sequence fitting curve; based on the time sequence fitting curve, selecting a long time sequence training sample and a verification sample for training a random forest classification model; and performing classification identification on the remote sensing image by using the trained random forest classification model to obtain an intertidal zone identification result of the target area. According to the method, the long-time sequence samples are extracted on the basis of taking the pixels as units, the intertidal zone range is extracted by fully applying the information between the long-time sequence images, and the efficiency, precision and flexibility of extracting the intertidal zone information of the long-time sequence images are effectively improved.

The present application relates to the technical field of marine construction engineering, and particularly relates to a modular multi-stage intertidal zone ecological revetment concrete block and a laying method thereof. The ecological revetment concrete block is designed with holes with a diameter of 5 cm-10 cm on the surface, and the hole density is 10-50 per square meter, so that the surface area and the attachment points are increased. The surface concave-convex degree of the ecological revetment concrete block is controlled within a range of plus or minus 5 cm, so that the anti-skid performance is improved, the water flow turbulence is increased, and the oxygen exchange is promoted. By simulating the ecological gradient of the natural intertidal zone, a suitable growth and reproduction environment is provided for marine organisms, and the balance and service function of the marine ecological system are maintained.

The application discloses a kind of oyster reef repair methods based on plant material construction attachment matrix, it is related to the technical field of coastal zone ecological restoration.The repair method includes the following steps: S1, selecting plant material, the stem of salt marsh plant is the plant material;S2, the plant material is cut into segments and pretreated, and an attachment matrix assembly is prepared;S3, a plurality of the attachment matrix assemblies are tied and connected to form an attachment matrix unit, the attachment matrix unit is arranged in a matrix, is vertically fixed on the surface of a bearing member, and forms a deployable matrix structure unit;S4, the matrix structure unit is laid in the target repair area, and is fixed to the base by anchoring assembly.The plant material of the application maintains structural durability during the oyster attachment period, and is completely degraded naturally in the later period;It reduces the dependence on hard artificial matrix, has a wide source of materials, is easy to construct, has remarkable repair effect, and is suitable for oyster reef repair in intertidal zone or shallow water area and other areas where natural attachment matrix is lacking.

The invention discloses a composite microbial agent for degrading micro-plastics in seawater and a preparation method thereof, the microbial agent is composed of effective viable bacteria and auxiliary components, the effective viable bacteria are marine-derived halomonas, acinetobacter and bacillus and pseudomonas with high affinity with the micro-plastics, the effective viable bacteria are compounded according to a specific viable bacteria number ratio, and the microplastics are degraded by the auxiliary components. And function collaboration is realized. The auxiliary components comprise a protective agent consisting of trehalose, skimmed milk, glycerol and cane sugar, and a nutritional agent consisting of glucose and yeast extract. The preparation method comprises the following steps: respectively fermenting, centrifugally concentrating, compounding in proportion, mixing with auxiliary components, and finally drying to prepare powder. The invention further discloses application of the microbial inoculum to degradation of microplastics in beach intertidal zones and ship wastewater systems. The microbial agent is high in pertinence, good in stability in a high-salt seawater environment and high in degradation efficiency, and an effective solution is provided for in-situ bioremediation of marine micro-plastic pollution.

The application discloses a facies intertidal zone sessile organism investigation method based on visual modeling, first, the low tide period of spring tide day is determined in combination with the data of the tidal station, the orthographic image and three-dimensional model of the investigation area are acquired by using the RTK unmanned aerial vehicle, the accurate investigation range is demarcated and the entry and exit paths are planned through the geographic information system processing. The slope parameters are calculated by using the digital land surface model and the personnel equipment configuration is optimized, the ground control points are laid on the site, and the geodetic coordinate system reference is established. The double route oblique photography mode is adopted, the image shooting sampling is carried out at a 45-degree visual angle, a 0.4m object distance and a 70% image overlap rate, the high-precision three-dimensional ecological model is generated through the point cloud reconstruction in combination with the morphological identification result of the species, and the parameters such as the habitat density, interspecific competition and light adaptability of the sessile organism are efficiently investigated.

The utility model relates to a kind of dredging devices for assisting intertidal zone high beach machine site operation and maintenance, including work ship body, the front end of work ship body is fixedly connected with dredging connector, the end of dredging connector away from work ship body is fixedly connected with dredging mud pump head, the rear end of work ship body is fixedly connected with mud extension pipeline, the front end of mud extension pipeline is threadedly connected with front connecting ring, the inside wall of front connecting ring is fixedly connected with internal replaceable flexible sleeve, in the above-mentioned dredging device for assisting intertidal zone high beach machine site operation and maintenance, in ebb period, using professional work ship body and dredging mud pump head cooperation, clean out a temporary passage, ensure that its depth and width can satisfy construction ship traffic demand, simultaneously make internal replaceable flexible sleeve can cover operation area with dredging progress synchronously, avoid mud extension pipeline internal partial wear and tear problem, prolong mud extension pipeline service life.

The invention discloses an intertidal zone terrain profile extraction method based on time-average video images. The method comprises the following steps: acquiring an intertidal zone continuous video image, and correcting the intertidal zone continuous video image to a plane geographic coordinate system through a coordinate conversion model; establishing single-valued mapping between ground coordinates and image plane coordinates, and back-projecting pixels of the video image to a unified geographic grid; constructing an affine matrix of a single-pixel image column based on single-valued mapping, and embedding a geographic direction vector of a target section into spatial transformation of the image column; intercepting an image column sample of the image at each moment in the video image according to a preset pixel width along the target section direction; identifying the position of a waterline breakpoint in the image column by using a neural network model; and carrying out waterline elevation calculation and the like by referring to a local slope model based on a balanced section. According to the method, the high-frequency characteristics of video monitoring and the priori knowledge of the physical model are fused, so that the efficiency and precision of profile extraction are effectively improved while the data continuity is ensured.

The invention discloses an ecological environment monitoring and early warning method and system based on big data, and relates to the field of environment monitoring and early warning, and the method comprises the steps: collecting sea-land ecological monitoring data, and obtaining historical sea-land ecological data; completing index pair matching of all monitoring indexes, and dividing the target sea-land area into an intertidal zone area and a non-intertidal zone area based on an index pair matching result and sea-land ecological monitoring data; constructing an intertidal topological graph, and completing sub-region division of the intertidal zone region based on the intertidal topological graph to obtain a plurality of intertidal sub-regions; calculating ecological area parameters; and combining the sea-land ecological monitoring data and the ecological area parameters to generate an ecological environment early warning report of the target sea-land area. According to the invention, the precision of environment monitoring and early warning in the sea-land boundary area can be effectively improved.

The invention discloses a lithofacies intertidal zone fixation organism investigation method based on visual modeling, which comprises the following steps of: firstly, determining a large tide daily low tide period by combining tide station data, acquiring an orthoimage and a three-dimensional model of an investigation area by utilizing an RTK unmanned aerial vehicle, delimiting an accurate investigation range through processing of a geographic information system, and planning an entrance path and an exit path; gradient parameters are calculated through a digital earth surface model, personnel and equipment configuration is optimized, ground control points are arranged on site, and a geodetic coordinate system reference is established; according to the method, a double-route oblique photography mode is adopted, image shooting and sampling are carried out at the view angle of 45 degrees, the object distance of 0.4 m and the image overlapping rate of 70%, a high-precision three-dimensional ecological model is generated through point cloud reconstruction in combination with species morphological identification results, and parameters such as inhabitation density, interspecific competition and light adaptability of fixed organisms are efficiently investigated.

The invention discloses an oyster ecological reef cluster specially designed for a soft substrate intertidal zone mud flat and based on timber pile fixation, and belongs to the technical field of marine ecological restoration and coast engineering. The invention provides a suspension type reef construction scheme based on the friction pile principle aiming at the problem that an existing gravity type artificial reef is prone to sedimentation on a silty and muddy beach. The ecological reef cluster is composed of a plurality of reef body units, each unit comprises a pine pile set, and net bags are hung and fixed through rope knots. Trace terpenoids released by the pine material and biological membranes on the surfaces of the scallop shells have a synergistic effect, so that the attachment rate of the oyster larvae is remarkably increased. According to the method, through a'biological armor 'mechanism, the wood piles are wrapped and protected from being corroded by ship maggots through rapid calcification of oysters, a hydrodynamic field is optimized through 50-meter large-interval staggered layout, water body exchange and bait supply are guaranteed while wave energy is reduced, and the problem that structural stability and biocompatibility are difficult to consider in ecological restoration of the soft foundation beach is solved.

The present application relates to the technical field of ecological system, and specifically discloses a system for constructing a three-dimensional monitoring network and evaluating ecological influence of coastal birds under the influence of a water-crossing bridge, comprising a three-dimensional monitoring network module, a data processing module and an ecological influence evaluation module; the three-dimensional monitoring network module is used for monitoring bird activities in a coastal nearshore area; the data processing module is used for calculating bird density and identifying bird spatial density mutation points based on data collected by the three-dimensional monitoring network module; and the ecological influence evaluation module is used for evaluating the ecological influence of the water-crossing bridge on birds based on bird density changes and mutation point migration. The shore-based, ship-based and bridge-based multi-dimensional monitoring nodes are cooperatively arranged, the shore-based fixed points cover the nearshore intertidal zone and land area, the ship-based mobile scanning supplements the far beach and channel blind area, and the bridge-based attachment points focus on the key areas around the bridge, thereby forming a three-dimensional network combining points, lines and surfaces, and solving the monitoring missing problem in the construction sensitive area and far shore area.

The application discloses a kind of based on root system synergic soil fixation estuary intertidal zone vegetation construction method and system, method includes: collecting the hydrodynamic parameter of target area, soil salinity distribution and topographic elevation data, generate the multidimensional environmental characteristic set reflecting tidal scour intensity and site condition;Based on multidimensional environmental characteristic set, output species combination and time window matching scheme;According to matching scheme, generate the multilayer planting structure model with ladder wave dissipation function;According to multilayer planting structure model, the planting density of each species, strip width and the number of alternate units are calculated, and the estuary intertidal zone vegetation construction scheme containing space configuration and seedling demand is generated.Using the embodiment of the application, the three-dimensional anchoring capacity of root network to the soil of intertidal zone can be enhanced, and the survival rate and ecological stability of vegetation community in complex hydrodynamic environment can be improved.

A shallow water area landform intelligent identification method fusing multi-modal data comprises the steps of obtaining water quality turbidity of a water body in an operation area and point cloud data of a shoreline and an intertidal zone, and establishing a turbidity environment model based on the water quality turbidity and the point cloud data. And adjusting the operation parameters of the unmanned ship multi-beam sonar according to the turbidity environment model, and correcting the sonar echo intensity based on the turbidity level to obtain the corrected underwater sonar point cloud. Coordinate unification and preprocessing are performed on the underwater sonar point cloud and the shoreline and intertidal zone point cloud data, and the underwater sonar point cloud and the point cloud data are fused through a weighted smoothing algorithm to generate a unified digital elevation model. Morphological features and textural features in the operation area are extracted from the unified digital elevation model, and a multi-modal composite feature set is constructed based on the morphological features and the textural features. And inputting the multi-modal composite feature set into a pre-trained recognition model, and generating a water area landform spatial distribution map in combination with a turbidity environment model.

The invention relates to an intertidal zone benthic microalgae multispectral self-adaptive carbon sequestration rate in-situ monitoring system and method, the system comprises a reactor used for containing intertidal zone sediments, the top of the reactor is covered with a cover plate, and the cover plate is provided with an LED lamp; a through hole is formed in the side wall of the reactor, an electrode penetrates through the through hole, and the other end of the electrode is electrically connected with a monitor; a micro-motor system is further arranged on the side wall of the reactor, and the micro-motor system is electrically connected with the LED lamp so as to control on and off of the LED lamp; a water changing opening is further formed in the side wall of the reactor, and the water changing opening is electrically connected with the micro-motor system so as to control opening and closing of the water changing opening; the scheme provided by the invention has the advantages that the method is not influenced by the environment, and the carbon sequestration rate of the benthic microalgae can be measured at high precision in any adverse environment.

The invention relates to a water level monitoring and construction production scheduling auxiliary method for a photovoltaic project in an offshore intertidal zone, and is suitable for the technical field of ocean engineering and new energy. The method comprises the steps that water level monitoring data of a water level monitoring network are acquired regularly, and the water level monitoring network is provided with a plurality of water level sensors arranged in a photovoltaic project construction area; generating a full-field water level distribution map based on the water level monitoring data of the water level monitoring network; based on the water level monitoring data of multiple continuous moments between the current t moment and the t-k moment, tide periodic characteristics are extracted; inputting the water level monitoring data and the tide periodicity characteristics at a plurality of continuous moments into a trained tide prediction model, and predicting a water level change trend in a future preset time period; and construction and production scheduling are conducted based on the water level change trend in the future preset time period. According to the method, the adaptive model is trained through multi-source data, and the tide period prediction precision is improved. The sensor layout strategy is optimized according to the geological exploration result, and scientific distribution of monitoring points is realized.

This invention provides a method for constructing a horizontal hydrological connectivity index in the northern intertidal zone, comprising the following steps: collecting surface soil water samples from various tidal zone plots and determining the stable isotope abundance of the surface soil water in each plot; collecting seawater samples at the same time as the surface soil water samples and determining the stable isotope abundance of the seawater; constructing the hydrological connectivity index for each tidal zone plot according to the hydrological connectivity index calculation formula, and comprehensively evaluating the horizontal hydrological connectivity of the northern intertidal zone. The technical solution of this invention, based on stable isotope tracing, constructs a hydrological connectivity index with higher accuracy and sensitivity. Furthermore, by using only the hydrogen and oxygen stable isotope abundance changes as an indicator, the source ratio of multiple water sources in the intertidal zone can be effectively identified, thereby accurately quantifying the hydrological connectivity of the intertidal zone and guiding the eco-hydrological restoration of coastal wetlands.

The present application relates to the technical field of intertidal zone ecological monitoring and computer vision application, and discloses a device and method for rapidly obtaining intertidal zone seaweed biomass. The device comprises: a positioning calibration module, which aligns the projection laser mark auxiliary image acquisition area with the quadrat area; an image acquisition module, which acquires seaweed images in the quadrat; and a data processing module, which calls a deep learning segmentation model to perform pixel-level segmentation and species identification on the images, calculates the coverage of each type of seaweed according to a preset scale, and combines the species correction coefficient K in the density correction coefficient database to calculate the biomass of each type of seaweed and obtain the total biomass of the quadrat. The device replaces the traditional in-situ acquisition with non-contact image acquisition, realizes pixel-level identification of seaweed through a deep learning segmentation model, rapidly calculates the biomass in combination with the density correction coefficient, significantly improves the investigation efficiency, reduces the labor cost and the safety hidden danger of operation, and realizes non-destructive observation of seaweed communities.

The invention relates to the technical field of offshore construction, and discloses an intertidal zone construction transportation device which comprises a base, a track beam, a driving rod and a fixing seat. The bottom of the base is provided with at least one positioning ground nail, and the base is provided with a first anchoring hole penetrating through the top side and the bottom side of the base. The track beam is provided with a second anchoring hole communicated with the inner cavity and the outside of the track beam. The driving rod is connected with a top plate of the track beam. The fixed seat is connected with the driving rod, and an anchor rod is arranged on the fixed seat. The driving rod can drive the fixing base to move downwards, so that the anchor rod penetrates through the first anchoring hole and the second anchoring hole and is inserted into a soil layer. The fixing base is driven by the driving rod to move downwards, the anchor rod on the fixing base penetrates through the first anchoring hole and the second anchoring hole and then is inserted into the soil layer of the intertidal zone, the track beam and the base are fixed, the track beam, the base and the foundation are anchored, multiple functions of positioning, connecting and anchoring are achieved, the on-site operation steps and time are reduced, and the installation efficiency is improved.

An amphibious tidal tank, comprising a main tank (1), a bottom tank (2), and a partition plate (103), the partition plate (103) dividing the main tank (1) into a land area (102) and a water area (101), and further comprising: an overflow device and a drainage area (104), water in the water area (101) overflowing to the drainage area (104) by means of the overflow device; a first drainage pipe (105) and a second drainage pipe (106) arranged in the drainage area (104), a water inlet of the first drainage pipe (105) being higher than a water inlet of the second drainage pipe (106), the water inlet of the second drainage pipe (106) being not higher than the overflow height of the overflow device, and an electric ball valve (108) being provided on the second drainage pipe (106); and a first water supply pipe (107) and a water pump (204), the water pump (204) being arranged in the bottom tank (2). The water area (101) of the amphibious tidal tank has a relatively high water level when being at a low tide level, and in the land area (102), there is a relatively thick land layer having good air permeability. Therefore, the requirements of organisms in the intertidal zone on the land layer and the requirements of aquatic organisms on the amount of water can be satisfied. In addition, the relatively thick land layer allows burrowing organisms in the intertidal zone to dig relatively deep holes, which is beneficial to the survival of the burrowing organisms, and improves the ornamental value of the amphibious tidal tank.

The application discloses a kind of intertidal zone oyster reef body analysis method and system of fusion thermal imaging aerial photography, comprising: obtaining multi-source aerial photography data set, extracting the thermal infrared image data of intertidal zone region, and constructing regional temperature thermal map;Obtain multispectral substrate classification chart, segment the intertidal zone oyster reef body of target region, and obtain oyster reef body distribution chart;Construct the dense three-dimensional point cloud of the intertidal zone of target region, combined with regional temperature thermal map to execute heat-light data fusion operation, generate fusion point cloud data set;Oyster reef body distribution chart is used as spatial mask to be cut and construct intertidal zone reef body three-dimensional model, crack detection and oyster reef body feature measurement are carried out through intertidal zone three-dimensional model, generate multi-modal reef body feature vector;Intertidal zone oyster reef body health in target region is analyzed, and combined with regional ecological data to determine the priority of regional repair, generate early warning information, improve the convenience and accuracy of reef structure parameter measurement.

The invention discloses an intertidal zone shrub feature extraction method and device based on point cloud, equipment and a medium, and relates to the technical field of point cloud data processing. The method comprises the following steps: acquiring initial laser point cloud data and initial underwater topographic data of an intertidal zone in different time periods; performing data fusion processing on the initial laser point cloud data and the initial underwater terrain data to obtain all-terrain fusion point cloud data; extracting ground points from the fused point cloud data based on a progressive triangulation network encryption filtering mode to obtain ground points and non-ground points; and performing shrub feature extraction based on the ground points and the non-ground points to obtain shrub feature information. According to the method, the shrub feature information of the tropical intertidal zone can be automatically, efficiently and accurately extracted based on the point cloud data, the labor cost is reduced, the measurement efficiency of the intertidal zone is improved, and better calculation precision is kept.

The invention relates to a beach and shallow sea submarine cable landform unmanned ship measurement system and measurement method, a navigation positioning device, a water depth landform investigation device, a submarine landform measurement device and a sound velocity measurement device are all carried on a digital intelligent unmanned ship, and a tide observation device is placed at a tide observation point of a shore near a measurement beach and shallow sea; the measurement process comprises the steps of working condition analysis, equipment installation, digital intelligent unmanned ship navigation test, tow fish length test, water depth topography survey device calibration, survey line layout, underway measurement, tide level observation, sound velocity measurement, data integrity inspection, submarine cable overlying topography data processing and analysis, and drawing and report drawing. Compared with a traditional beach and shallow sea submarine cable overlying topography and landform measurement method, measurement of the intertidal zone submarine cable overlying topography and landform is effectively completed, the intelligence and safety of data acquisition during beach and shallow sea submarine cable overlying topography and landform measurement operation are improved, and the turning radius of a measurement line is reduced.

The invention provides a mangrove forest three-dimensional hydrodynamic model construction method and a three-dimensional flow velocity prediction method, and relates to the technical field of ecological systems.The mangrove forest three-dimensional hydrodynamic model construction method comprises the steps that site division is conducted on mangrove forest plaques in a research area, and a plurality of site areas are obtained; acquiring survey data of each site area; the survey data comprises mangrove forest plant distribution characteristics and flow velocity data; determining resistance data items and turbulence energy data items of the mangrove forest to water flow according to the flow velocity data and the mangrove forest plant distribution characteristics; and based on an original momentum equation and a Meller-Yamada model, integrating the resistance data item and the turbulence energy data item, and constructing a mangrove forest three-dimensional hydrodynamic model. The problem that an existing three-dimensional hydrodynamic numerical model lacks a core pain point of an exclusive power module for an intertidal mangrove forest ecosystem is effectively solved, and the complete process of site division, survey data acquisition, resistance and turbulence data calculation and model construction is performed.

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 present application provides a kind of intertidal zone beach benthic animal intelligent identification and density monitoring method and device, in the target area of investigation light beach, multiple independent sample quadrats are laid according to random way, video is collected using unmanned aerial vehicle and is pretreated;In uniform video environment, the identification and spatial scale calibration of sample quadrat are carried out synchronously, and the target identification of beach benthic animal is carried out;The actual beach area corresponding to the video picture is determined according to the sample quadrat identification result, and the representative quantity and biological density of the species are calculated based on the identification result of target species using median statistical method.The non-contact, automatic and high-precision monitoring of intertidal zone beach benthic animal is realized through the cooperative application of unmanned aerial vehicle aerial photography and improved YOLO identification model, the interference of artificial investigation is reduced, the stability, accuracy and monitoring efficiency of density estimation are improved, and it is suitable for large-scale, high-frequency investigation and monitoring of intertidal zone beach benthic animal resources.

The invention discloses an intertidal zone terrain inversion method based on an optical remote sensing image of a sequence model, and relates to the field of intertidal zone terrain inversion, and the method comprises the steps: filtering cloud pixels in an intertidal zone remote sensing image, and obtaining preprocessed remote sensing data; generating a water body mask of the preprocessed remote sensing data based on the normalized difference water body index, and determining an intertidal zone range by using a time sequence mask superposition and morphological optimization processing technology; in the intertidal zone range, performing standardization and equalization processing on the multispectral index calculation result and data of each wave band of the intertidal zone remote sensing image to obtain model training data; and constructing an intertidal zone elevation prediction model, and outputting an intertidal zone terrain inversion result by using the intertidal zone elevation prediction model. The method disclosed by the invention reveals the correlation between the intertidal zone elevation and the time sequence remote sensing image, breaks through the space-time limitation of the traditional intertidal zone topographic measurement method, and realizes the automatic inversion of the intertidal zone topography based on the optical image.