19 results about "Salt marsh" patented technology

The invention relates to the field of ecological environment monitoring technology and ecological value evaluation accounting, in particular to a coastal salt marsh ecosystem climate regulation service material quantity accounting method, which comprises the following steps: S1, based on years of meteorological and ecological investigation monitoring data, extracting a response relationship of temperature and humidity to climate regulation positive utility, and calculating the climate regulation service material quantity of a coastal salt marsh ecosystem; constructing a response curve and dividing an enhancement region, an attenuation region and a reversal region; s2, screening forward contribution time periods according to utility partitions, identifying boundary fluctuation and mutation behaviors, and generating an adjustment utility validity period list; and S3, generating a contribution settlement table and converting the contribution settlement table into energy and matter quantity indexes according to the ecological type and the adjustment effectiveness in the block settlement validity period, and completing the adjustment service matter quantity accounting. According to the invention, through critical zone identification, validity period screening and multi-stage mapping conversion, high-precision, space-time sensitive and energy equivalent accounting of the climate regulation service material quality of the coastal salt marsh ecosystem is realized.

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 coastal salt marsh wetland non-photosynthetic vegetation coverage inversion method, which comprises the following steps: S1, obtaining hyperspectral reflection curves of soil, non-photosynthetic vegetation and photosynthetic vegetation of the coastal salt marsh wetland of the Yellow River Delta, simulating and measuring spectral characteristics of samples under different moisture contents (dry, low humidity, medium humidity and saturation) in a laboratory, and calculating the coverage of the non-photosynthetic vegetation in the coastal salt marsh wetland; key wave bands of non-photosynthetic vegetation and other ground features are screened and distinguished; s2, constructing a moisture-insensitive hyperspectral NPV index (MINI), and determining an optimal wave band combination through wave band traversal; and S3, constructing mixed data of soil, non-photosynthetic vegetation and photosynthetic vegetation under different moisture conditions in a laboratory, and evaluating inversion precision and stability of MINI under different moisture conditions. S4, acquiring a coastal salt marsh wetland hyperspectral image, and calculating an NDVI value and an MINI index value based on the processed image; and S5, performing spectral unmixing on the mixed pixels based on a triangular space method, and inverting the non-photosynthetic vegetation, photosynthetic vegetation and soil coverage of the research area. The method provided by the invention solves the technical problems of low precision and poor stability of the traditional NPV index inversion coverage under the condition that the coastal salt marsh wetland is influenced by tides and the moisture change is obvious.

The invention provides a PID-based servo drive control method and system, and relates to the technical field of servo drive control, and the method comprises the steps: obtaining robot capture operation videos of salt marsh wetland small arthropomorphic organisms under different mechanical claw clamping forces; based on the operation information under the clamping force of each mechanical claw, the lower-limit clamping force of the anti-disengaging mechanical claw and the upper-limit clamping force of the protective mechanical claw are determined; determining a plurality of first mechanical claw clamping forces based on the anti-falling lower limit mechanical claw clamping force, the nursing upper limit mechanical claw clamping force and the operation information under each mechanical claw clamping force; the robot based on the multiple first mechanical claw clamping force captures the operation video of the salt marsh wetland small joint limb type organisms to determine the target mechanical claw clamping force; and PID servo driving control is executed on the robot based on the target mechanical claw clamping force. According to the method, the optimal adaptive mechanical claw clamping force for capturing the salt marsh wetland small joint limb type organisms by the robot can be accurately determined.

The invention relates to the technical field of gardening cultivation, and discloses a seedling raising method suitable for planting asparagus in saline-alkali soil, which comprises the following steps: circularly executing saline water unsaturated infiltration natural evaporation concentration and fresh water saturated leaching on a seedling raising substrate; according to the method, stress characterization of seedlings in a sentinel hole tray with relatively small matrix filling depth is used as an objective basis for triggering drip washing, and the conductivity of drip washing drainage is measured so as to feed back and adjust the stress intensity of subsequent circulation. Physiological elasticity and adaptive memory of the seedlings are constructed, and the systematic problem that the survival rate is low due to the fact that the seedlings cultivated in a traditional seedling raising mode cannot quickly respond to environment fluctuation after being transplanted to real saline-alkali soil is solved.

The present application relates to the field of horticultural cultivation, and discloses a seedling raising method suitable for planting salt sedge in saline-alkali soil, which comprises the steps of performing salt water non-saturated infiltration, natural evaporation concentration and fresh water saturated leaching on the seedling raising substrate in circulation; the seedling stress representation in the sentry plug tray with a shallow filling depth is used as an objective basis for triggering leaching, and the conductivity of leaching drainage is measured to feedback and adjust the stress intensity of the subsequent cycle; by reproducing a rhythmic osmotic pressure dynamic change in the seedling root zone, the physiological flexibility and adaptability memory of the seedling are constructed, and the systematic problem of low survival rate of seedlings cultivated by traditional seedling raising methods after transplanting to real saline-alkali soil due to the inability to quickly respond to environmental fluctuations is solved.

The invention discloses a corrosion test method for a seabed cement-based material. The corrosion test method comprises the following steps: step 1, preparing artificial seabed sludge; 2, testing the water content and the shear strength of the artificial seabed sludge; 3, drawing a shear stress-shear rate curve of the artificial seabed sludge, and determining the yield stress and the plastic viscosity of the artificial seabed sludge; step 4, completely burying cement-based materials with different proportions into artificial seabed sludge, covering a sealing device, putting the artificial seabed sludge into a constant temperature and humidity chamber or an environmental test chamber, setting temperature and humidity parameters, and starting a soaking test; and 5, taking out the cement-based material according to a preset time interval, observing and testing to obtain an erosion rule of the cement-based material in an artificially prepared seabed sludge environment, and determining a construction mix proportion. The concentration of key erosion factors is accurately controlled by adjusting components according to needs, and erosion characteristics of specific marine environments such as mud flat, deep sea and salt marsh can be simulated.

The invention discloses a salt marsh ecological restoration system based on historical propagule library in-situ activation, and relates to the technical field of ecological restoration, the system comprises a historical habitat identification and calibration module used for identifying and calibrating the historical distribution range of target restoration vegetation in a target area; the deep propagule library verification module is used for carrying out sampling and activity verification on propagules in a sediment deep area and confirming existence of a propagule library capable of being used for in-situ activation; the ecological opportunity decision-making module is used for determining a suitable time window for implementing in-situ activation operation; and the targeted physical disturbance activation module is used for applying non-invasive physical disturbance to the deep area of the sediment, so that the living propagule buried in the deep area floats upwards to the surface layer of the sediment. According to the scheme, normal form transformation from dependence on external transplantation to activation of internal potential is achieved, the repair process is simplified into targeted field operation, and the comprehensive cost and resource consumption are remarkably reduced.

The present application belongs to the field of computer aided design and numerical simulation, and relates to a deposition dynamic feedback guided oyster reef induced salt marsh micro-landform construction method. The present application aims to solve the problems of dynamic deposition simulation and automatic layout optimization in coastal ecological restoration, and solve the problems that traditional static simulation cannot reflect dynamic deposition evolution and lacks automatic optimization mechanism. The present application firstly fuses multi-source water and sediment dynamic parameters to generate initial data, and constructs a dynamic deposition evolution model; then inputs initial oyster reef layout parameters to perform biophysical feedback simulation, and generates a sediment deposition atlas; finally analyzes the topographic elevation changes in the atlas, combines with salt marsh suitability indexes, and outputs an optimal layout scheme by using a heuristic search algorithm. The present application not only overcomes the limitations of traditional static simulation, but also improves the scientificity and calculation efficiency of ecological restoration engineering design, and has important application value.

The application provides a PID-based servo drive control method and system, and relates to the technical field of servo drive control.The method comprises the following steps: acquiring robot capture operation videos of small arthropods in a salt marsh under different mechanical claw clamping forces; determining a lower limit mechanical claw clamping force for preventing falling and an upper limit mechanical claw clamping force for protecting life based on operation information under each mechanical claw clamping force; determining a plurality of first mechanical claw clamping forces based on the lower limit mechanical claw clamping force for preventing falling, the upper limit mechanical claw clamping force for protecting life and the operation information under each mechanical claw clamping force; determining a target mechanical claw clamping force based on robot capture operation videos of small arthropods in a salt marsh under the plurality of first mechanical claw clamping forces; and performing PID servo drive control on the robot based on the target mechanical claw clamping force.The method can accurately determine the best adaptive mechanical claw clamping force of the robot for capturing small arthropods in a salt marsh.

Disclosed in the present invention are an auxiliary planting method and a system thereof, which aim at solving the technical problems of low survival rate, poor stability and non-standardized operation of planting in existing phytoremediation. A core method of the present invention comprises: a) preparing a plant propagule, wherein the propagule is a seed or a seedling; and b) deploying a structure, involving: deploying, in a region to be remediated, at least one auxiliary planting structure made of a biodegradable material, wherein the auxiliary planting structure is provided with at least one planting hole which can accommodate the propagule therein, and fixing the auxiliary planting structure to said region by using an anchor. The structure can provide physical support, water flow buffering, microenvironment improvement and biological protection for the propagule in the early stage of planting, and then degrades naturally. Further disclosed in the present invention is a system for implementing the method, which system comprises the auxiliary planting structure and the anchor. By means of the present invention, the standardization and engineering of phytoremediation operations for mangroves and salt marshes can be achieved, thereby enhancing the adaptability to complex environments. Moreover, the present invention is ecologically friendly, and has significant ecological and economic benefits.

The invention discloses a method for planting reeds on a coastal salt marsh tidal zone, which comprises the following steps of: determining the layout and the number of terrace fields according to the range, the terrain and the shape of a repaired section, and arranging drainage ditches according to the distance between the terrace fields; a compacted soil cofferdam is constructed on the periphery of the platform field, and a drainage pipe is arranged on the cofferdam close to one side of the drainage ditch; digging a drainage ditch on one side of the platform field along the terrain, and reserving a riding track between the drainage ditch and the cofferdam; a rhizome transplanting method is adopted, fresh water is regularly irrigated after planting, a 5 cm fresh water layer is kept at the bottom of the platform field until germination, after germination, soil of the platform field is kept moist, the seedling height is larger than or equal to 20 cm, the soil is kept in a saturated and waterlogging-free state, and after the seedling height is larger than or equal to 30 cm, the 5 cm fresh water layer is restored; and according to the restoration target and the actual emergence condition, complementary planting is conducted on the terrace field plaques with the low budding rate. By adopting the cofferdam platform field, the adverse effect of seawater submerging on reeds in the tidal zone is effectively isolated, the survival rate of the reeds is remarkably increased, and the reparation cost is reduced.

The utility model discloses a water quality purification structure for a coastal salt marsh wetland, which comprises a purification pond, a water inlet, a water outlet and a water outlet, the blocking net is arranged in the purification tank, and the blocking net is located between the water inlet and the water outlet; the multiple blocking walls are arranged in parallel, and the multiple blocking walls are located between the blocking net and the water outlet; the purification assemblies are located between the adjacent blocking walls; and the planting floating disc assembly is arranged on the purification tank. Compared with the prior art, sewage discharged into the coastal salt marsh wetland can be purified through the arranged purifying pond, so that the coastal salt marsh wetland water body can be prevented from being polluted, and the biological diversity of the wetland water body is prevented from being damaged.

This invention discloses a method for assessing carbon sources or sinks in blue carbon ecosystems based on a net ecosystem carbon budget framework. It integrates multiple disciplines and technologies, including satellite remote sensing, ecosystem flux observation, determination of water and soil carbon biogeochemical indicators, hydrological observation and simulation, and model simulation and analysis, to establish a system for assessing carbon sources or sinks in coastal wetlands based on the net ecosystem carbon budget framework. An application practice was conducted using the Yellow River Estuary salt marsh tidal flat wetland as an example. The method for estimating carbon sources or sinks in coastal wetlands provided by this invention simultaneously considers key processes such as surface-atmosphere exchange and the carbon budget of river inputs and outputs to the nearshore area, achieving accurate assessment of carbon sources or sinks in coastal wetlands.

The present application relates to the technical field of wetland ecological restoration, in particular to a method for in-situ restoration and soil improvement of a Suaeda community in a salt marsh, comprising: constructing a network of flow guide and salt isolation ditches in the restoration area; constructing rhizosphere improvement microzones at planting locations; planting Suaeda plants in the rhizosphere improvement microzones; laying a cover on the ground surface around the planted Suaeda plants; and densely planting the Suaeda community at a predetermined density. By combining the excavation of the flow guide and salt isolation ditches, the laying of the rhizosphere improvement layer, and the planting of the Suaeda plants into one procedure, the method avoids the secondary disturbance to the original wetland caused by the traditional soil improvement and planting mode, and the need for step-by-step construction and multiple entries. The columnar rhizosphere protection layer constructed by the formula improvement substrate creates numerous micro ecological shelters in the harsh salt marsh environment, provides low-salt, breathable, and nutrient-rich local living conditions for the Suaeda seedlings, and greatly improves the planting survival rate and stress resistance.

The utility model provides an ecological restoration system suitable for a coastal abandoned fishpond, which designs four key areas: an ecological barrier buffer area close to the inland, and the influence of human activities can be effectively reduced through a vegetation barrier; secondly, a salt marsh wetland habitat area close to the ocean is provided with a salt marsh beach land and a primary tidal creek connected with the ocean; the tidal conservation area is located between the ecological barrier buffer area and the salt marsh wetland habitat area, and a shoal wetland surrounded by a water body is arranged; a composite habitat lifting area is bordered with the shoal wetland and provided with a salt marsh wetland and a bird inhabiting island higher than the wetland, and plants suitable for birds to inhabit and find food are planted on the shoal wetland, the salt marsh wetland and the bird inhabiting island. The wetland and the bird inhabiting island are surrounded by water and are communicated with the ocean through the first-stage tidal creek, so that natural circulation and ecological connectivity of the water are guaranteed. The ecological restoration system is suitable for restoring the abandoned fishpond in the coastal area, and the biological diversity of the coastal wetland can be remarkably enhanced.

The application discloses a tidal scanning-based coastal salt marsh pioneer vegetation form measurement method and system, and the method comprises the following steps: acquiring a plurality of continuous pioneer vegetation flooding images of a target intertidal zone region and corresponding water level data; extracting the edge contour of the pioneer vegetation in the pioneer vegetation flooding images; according to the water level data corresponding to the pioneer vegetation flooding images, the edge contour of the pioneer vegetation is spliced to obtain a three-dimensional edge contour of the pioneer vegetation; according to the three-dimensional edge contour of the pioneer vegetation, the elevation point cloud data is extracted, and a three-dimensional model is reconstructed according to the elevation point cloud data to obtain a three-dimensional model of the pioneer vegetation form; based on the three-dimensional model of the pioneer vegetation form, a pioneer vegetation form measurement result is calculated; the pioneer vegetation form measurement result comprises the height, volume and biomass of the pioneer vegetation. The application improves the measurement precision of the pioneer vegetation form.

The application discloses a salt marsh wetland ecological bag and pine pile combined cofferdam structure, which comprises two rows of pile bodies arranged at intervals along a river bank, and a sandwich space is formed between the two rows of pile bodies; a leveling layer is arranged at the bottom of the sandwich space between the two rows of pile bodies; geotextile is arranged on the leveling layer; and filling bags are stacked in the sandwich space above the geotextile, and the filling bags are filled with planting substrates. The application aims to overcome the defects of the prior art and provide a salt marsh wetland ecological bag and pine pile combined cofferdam structure. By arranging the butt joint structure and the cooperation of the guide rod and the through hole, it is ensured that each pine pile is taken as a reference in the hydraulic pressure process, the pile spacing is uniformly ensured, the end surface of the receiving part is taken as the elevation limiting, the pile top earth penetration depth is effectively controlled, and the overall rigidity and the aesthetic degree of the pile row are improved.

The invention relates to the technical field of coastal landform monitoring, and discloses an intertidal zone salt marsh front edge erosion autonomous monitoring system and a data processing method. According to the invention, through the design of the anti-corrosion main support structure and the modular hoop, and in combination with the waterproof electronic cabin, the long-term operation stability and the equipment survival rate of the system in an intertidal zone high-salt, high-humidity and strong-wave impact environment are improved; a control strategy based on tide forecast is adopted, a distance measuring sensor is driven to carry out high-frequency sampling in an effective observation window, and the whole event collapse process is completely recorded; through fusion of multi-stage signal quality control, median representative value extraction and a robust statistical recognition algorithm based on a dynamic threshold, real block collapse events are automatically discriminated from high-interference original data, and continuous denudation and sudden erosion mechanisms can be reliably distinguished; and finally, automatic comparison and verification are carried out by means of time sequence images, complete event parameters are output, and data support is provided for analyzing the salt marsh front edge erosion dynamic process and establishing a prediction model.