55 results about "Water transparency" patented technology

The invention belongs to the technical field of water transparency measurement, and particularly relates to a water transparency measuring device based on an optical sensing technology, which comprises a saikowski disc, a first connecting block is fixedly connected to the center of the top of the saikowski disc, and a first connecting ball is rotatably mounted at the top of the first connecting block; the top of the first connecting ball is fixedly connected with a measuring rope, the end, away from the saybolt disc, of the measuring rope is connected with a handheld machine, and the bottom of the saybolt disc is provided with a conical first balancing weight. Dual detection of water transparency can be achieved through the pressure sensor and the light intensity sensor, compared with an existing manual measurement mode, errors in the manual detection process are reduced, meanwhile, the horizontal adjustment function of a second balancing weight and a third connecting ball on the light intensity sensor is matched, the measurement precision is improved, and the measurement accuracy is improved. Meanwhile, the convenience during detection is also improved, and the automation of water transparency detection is realized.

The application discloses the technical fields of environmental monitoring and water analysis and relates to a water transparency detector with self-immunization of optical window pollution, which comprises a light source, a first reflector, a beam splitter, a sample cell, a second reflector and a third reflector. The first reflector reflects the light of the light source to the beam splitter, and the beam splitter divides the light into transmitted light and reflected light. The transmitted light transmits through the sample cell and is converged by the second reflector to a transmitted end photoelectric detector. The reflected light is converged by the third reflector to a reference end photoelectric detector. The water transparency can be calculated according to the light intensity of the transmitted end photoelectric detector and the reference end photoelectric detector. The application dynamically offsets the error caused by the optical window pollution, light source fluctuation and detector drift through a double-light-path signal and a clean and polluted window pollution error double-ratio real-time compensation algorithm, so that the measurement accuracy can be ensured without a physical cleaning device. In addition, the application can monitor the change trend of the light intensity ratio and actively sense the degree of optical window pollution.

The present application relates to the technical field of water environment treatment and ecological restoration, and discloses a water transparency improving device and method based on an intelligent linkage dosing system, the water transparency improving device based on the intelligent linkage dosing system comprising a water transparency sensor, a suspended substance concentration sensor, a chlorophyll a sensor, a data acquisition and discrimination module, a medicament dosing control module, a medicament storage and dosing module and a medicament spraying module; the water transparency sensor, the suspended substance concentration sensor and the chlorophyll a sensor are arranged in a target water body; the data acquisition and discrimination module is connected with the water transparency sensor, the suspended substance concentration sensor and the chlorophyll a sensor respectively; the medicament dosing control module is connected with the data acquisition and discrimination module and the medicament storage and dosing module respectively; and the medicament storage and dosing module is connected with the medicament spraying module. The present application realizes intelligent and automatic improvement of water transparency.

The invention relates to the technical field of marine fishing, and discloses a marine cephalopod fishing device and method based on lamplight trapping, the device comprises a light source system, a behavior monitoring system, a fishing device and a device main body framework, the light source system monitors seawater transparency, seawater flow velocity and illumination intensity in real time through a sensor array; according to the method, the initial lamplight parameters are acquired according to real-time data of a sensor, the initial lamplight parameters are optimized in combination with historical fishing data, and meanwhile, the phototaxis index, the swimming speed and the gathering degree of the cephalopods are monitored in real time through a behavior monitoring system. Based on the data, the equipment can dynamically adjust a light trapping strategy, in this way, the equipment can keep the best trapping effect in different sea areas and environments, and the fishing efficiency is remarkably improved.

The invention discloses an optical window pollution self-immune water transparency detector and a detection method in the technical field of environmental monitoring and water analysis. The optical window pollution self-immune water transparency detector comprises a light source, a first reflecting mirror, a spectroscope, a sample pool, a second reflecting mirror and a third reflecting mirror, the first reflector reflects light of the light source to the spectroscope, and the spectroscope divides the light into transmission light and reflected light. Transmission light penetrates through the sample cell and is converged to a transmission end photoelectric detector by a second reflector; the reflected light is converged to a reference end photoelectric detector by the third reflector; and the water transparency can be calculated according to the light intensity of the transmission end photoelectric detector and the reference end photoelectric detector. According to the invention, errors caused by optical window pollution, light source fluctuation and detector drift are dynamically counteracted through a double-optical-path signal and a pollution error double-ratio real-time compensation algorithm of a clean and polluted window, the measurement accuracy can be ensured without a physical cleaning device, the change trend of a light intensity ratio can be monitored, and the measurement accuracy is improved. And the pollution degree of the optical window is actively sensed.

The embodiment of the application provides a kind of water transparency measurement system, method, equipment, medium and program product, it is related to water quality detection technical field, the system includes: measuring equipment and electronic equipment;Measuring equipment is obtained by gathering in the process of sinking from water surface into the water to be measured water data sequence including multiple groups of water data, each group of water data includes the light intensity data and water depth data collected at the same time;Electronic equipment inputs water data sequence into water transparency calculation model, obtains the water transparency that water transparency calculation model is based on water data sequence output.In the above system, water transparency is obtained by the light intensity data and water depth data of objective measurement, and is calculated by water transparency calculation model, and does not need to rely on the subjective visual observation of measurement personnel, to ensure the objectivity and consistency of measurement process, and obtain accurate water transparency measurement result.

The present application relates to the field of eutrophication lake water ecological restoration, and discloses a device and system for improving underwater light conditions of a lake. Natural light on the water surface is introduced into the underwater area near the device through refraction and reflection by using a light path system, effectively improving the underwater light intensity. A wave dissipation system is arranged below the light path system to prevent disturbance of the water body and sediments by small waves, to a certain extent, reducing the influence of sediments and resuspension on water transparency, and further improving the underwater light conditions. The light path system, the wave dissipation system and the underwater fixing system are sequentially fixed and connected from top to bottom, and the height of the light path system and the wave dissipation system is adjusted through the underwater fixing system with the rise and fall of the water surface, improving the applicability of the device. The device has the characteristics of simple structure, convenient operation, good performance, easy installation and recycling, etc. It can effectively reduce the adverse effects of insufficient underwater light of the lake and wave disturbance on the growth of submerged plants.

The invention belongs to the technical field of aquaculture, and discloses a comprehensive management method for preventing and controlling floating of vallisneria natans in a river crab pond in a plum rain period, which comprises the following steps: pond trimming: arranging a bentonite field in the pond, opening up a circular groove around the bentonite field, arranging a green ridge on the periphery of the circular groove, and planting Elodea nuttallii; releasing juvenile river crabs; planting vallisneria natans: planting the vallisneria natans in the bentonite before and after the Qingming, and regulating and controlling the water level of the bentonite; water quality regulation: after entering the plum rain period, regulating the water level of the bentonite and regulating the transparency of the water body; dissolved oxygen management: controlling the dissolved oxygen content at the bottom of the pond to be greater than 3mg / L in the plum rain period; mineral fertilizer application, wherein mineral fertilizer is regularly applied to the bentonite area in the plum rain period. By optimizing the planting area and density management of the vallisneria natans, disturbance of the river crabs is reduced, meanwhile, by supplementing mineral fertilizer and adjusting water transparency, nutrition and illumination are provided for growth of roots of aquatic plants, growth of the roots of the vallisneria natans can be effectively promoted, the floating problem of the vallisneria natans is systematically solved, and the success rate reaches 90% or above.

The invention provides a water transparency environment-ecological coupling analysis method. The method comprises the following steps: acquiring real-time turbidity data of a target water body; constructing a water turbidity and suspended matter concentration relation model based on the turbidity data, and calculating the suspended matter concentration of the target water body; analyzing the concentration of the suspended solids according to the lab rules of sedimentation and resuspension of the suspended solids to obtain a concentration change result of the suspended solids; fitting a suspended matter concentration change result to obtain a data relation model among the water transparency, the turbidity and the chlorophyll concentration, and obtaining an initial water transparency value; analyzing based on the water transparency value to obtain the algae concentration under the corresponding environmental characteristics; and realizing real-time analysis and effective prediction of the shading effect of the water body by dynamically adjusting the transparency value of the water body based on the influence relationship among the turbidity, the algae growth and the transparency of the water body. The water quality monitoring accuracy and efficiency can be improved, and powerful technical support can be provided for water environment treatment.

The application discloses a kind of submerged plant recovery condition evaluation and its construction method, belong to environmental engineering technical field, steps are as follows: measure or estimate water surface illumination intensity and measure water transparency;Based on underwater light field calculation method obtains underwater light field information in recovery area;Whether it has recovery condition is evaluated in combination with plant population and community light compensation point data;For the area without condition, wind wave influence is evaluated using wind wave influence evaluation method on sediment, and combined with ecological enclosure, fish removal, bottom comprehensive improvement aid and microbial compound microbial agent measures, improve water transparency and other water quality conditions, complete submerged plant recovery.The application is simple, efficient, and the construction measures are scientific, reasonable, economical and convenient, which can effectively improve the survival rate of submerged plants.

The invention discloses a river channel water body transparency improving system based on multi-stage filtration, and the river channel water body transparency improving system based on multi-stage filtration comprises a barrier region, a settlement region and an algae removal region which are sequentially arranged from front to back along a water body flowing direction, the filter floating island is positioned above the filter dam, and consists of a floating island and a filter screen arranged below the floating island; a base of the settlement area is concave; aquatic plants are planted in the algae removal area; according to the river channel water body transparency improving system based on multi-stage filtration, physical interception of pollutants can be achieved through the barrier area, particulate matter can be settled through the settling area, then filtration and biological purification are conducted through the algae removal area, and the purposes of efficiently removing the pollutants and improving the water body transparency are achieved; in addition, compared with a traditional purification method, the method has lower operation and maintenance cost.

The invention provides a lake water ecological system restoration method based on staged biological regulation and control, and belongs to the field of water environment treatment and water ecological restoration. According to the method, directional putting and regulation of aquatic animal communities are performed in three stages according to the recovery process of submerged plants: in the early regulation stage, carnivorous fishes are put to inhibit breeding of benthic omnivorous fishes; a middle-stage regulation and control stage: introducing benthonic animals to cooperatively control the quality of algae biomass and improve the transparency of the water body; in the later regulation and control stage, herbivorous fishes are put to promote plant tillering, lateral branch development and root system downward growth and expansion, and the substrate fixing capacity is enhanced; according to the method, the aquatic animals with the specific function class groups are sequentially put in stages, directional regulation and control of the aquatic animal community structure are effectively achieved, the planting success rate of the submerged plants is increased, growth of the aquatic plants is promoted, water transparency is improved, and a stable water ecosystem with the self-purification capacity is constructed.

The invention provides a water transparency detection method, liquid transparency detection is carried out by using a tubular-column-shaped container, the bottom of the tubular-column-shaped container is provided with a light-emitting sheet, the light-emitting sheet emits detection light, and the side wall of the tubular-column-shaped container is provided with a light shielding plate; pouring liquid to be detected into the tubular-column-shaped container to a specified height; a shading plate and a photosensitive sensor arranged on the shading plate are arranged at the top of the tubular-column-shaped container; the photosensitive sensor sets a basic illumination intensity detection threshold value; after detection is started, the liquid to be detected in the tubular-column-shaped container slowly flows out of the bottom of the tubular-column-shaped container, and when the photosensitive sensor senses the detection light with the illumination intensity being the same as the basic illumination intensity detection threshold value, the liquid to be detected in the tubular-column-shaped container slowly flows out of the bottom of the tubular-column-shaped container; reading the height value of the residual liquid to be detected in the tubular-column-shaped container at the moment, and calculating the transparency of the water body according to the relation between the height value and the transparency of the water body.

The invention belongs to the technical field of water body measurement, and particularly relates to an automatic water body transparency measuring system in a light-limited scene and an operation method.The measuring system comprises a saishi disc and a winch, the saishi disc is connected with the winch through a rope, a balancing weight is arranged on the saishi disc, the measuring system further comprises a fixing cylinder, and the fixing cylinder is connected with the winch through a rope. The saybolt disc and the winch are both arranged in a barrel cavity of the fixed barrel, a light source, a camera and ultrasonic detection equipment which are located above the saybolt disc are arranged in the barrel cavity, the barrel wall of the fixed barrel is hollowed out, and the camera and the ultrasonic detection equipment are in signal connection with a processor. The measuring system and method can supplement light to the surrounding environment of the water body, reduce the influence of light limitation on measured data, accurately and automatically measure the transparency of the water body in real time, and contribute to formulating a unified judgment standard for the measurement of the transparency of the water body.

The invention relates to the technical field of ecological filtration, and discloses an assembly type coastal zone ecological filtration water transparency improving device and an assembly method, and the assembly type coastal zone ecological filtration water transparency improving device comprises a frame structure, a filtration assembly and a connection structure; the hollow area is formed on the inner side of the frame of the assembly frame body, so that the weight of the structure can be reduced, water flow can more effectively pass through the filter assembly, and meanwhile, the device can be conveniently fused with a water body environment. The filtering assembly is arranged in the hollow area and is used for filtering the water body. In the actual use process, the filtering assembly is made of different materials or filtering media so that the treatment effect can be adjusted according to the water quality requirement. The connecting structures are arranged on the two sides of the assembling frame body and comprise at least two matched connecting parts. Through the connecting structures, the adjacent frame bodies can be detachably combined and connected, and rapid assembly and disassembly are facilitated. The flexibility of the device is enhanced, and the equipment can be expanded or reduced according to needs. And the plurality of frame bodies are combined and connected to form the filtering device covering the whole coastal zone.

The invention relates to the technical field of water environment treatment and ecological restoration, in particular to a shellfish and grass carp bacteria-algae symbiotic synergistic water ecological restoration method which comprises the following steps: firstly, constructing a three-dimensional multi-element symbiotic system containing composite flora, functional algae and the like, then putting bacteria and algae to form a purification subsystem, and introducing fish and shellfish to regulate biomass and convert pollutants, so as to achieve the purpose of ecological restoration of the shellfish and grass carp bacteria-algae symbiotic synergistic water ecological restoration. Aquatic plants are configured, seasonal regulation and control are implemented, the biological proportion is regulated according to water body characteristics, and the method is suitable for ecological restoration of black and odorous water bodies, eutrophicated lakes and the like. A three-dimensional multi-element symbiotic system is constructed, multi-biological components such as composite flora and functional algae are fused to form a cascade purification chain, pollutants are efficiently removed, the transparency of the repaired water body is larger than or equal to 0.8 m, the total nitrogen is smaller than or equal to 1.0 mg / L, the total phosphorus is smaller than or equal to 0.05 mg / L, the water body is adaptive to different water bodies through multi-dimensional dynamic regulation and control, the stability is improved, the integrity index of aquatic organisms is increased by 30% or above, and the water quality is improved. The remediation effect and sustainability are both considered, and the method is suitable for various polluted water bodies.

The present invention provides a device and method for detecting water transparency using suspended matter and chlorophyll sensors. The device comprises a housing, several water quality sensors, a photoelectric conversion and data processing module, and a transparency value display and storage module. The several water quality sensors are disposed on the housing and are communicatively connected to the photoelectric conversion and data processing module. The photoelectric conversion and data processing module is communicatively connected to the transparency value display and storage module, and the transparency value display and storage module is disposed on the outer circumference of the housing. The water quality sensors include a suspended matter sensor and a chlorophyll a sensor. The suspended matter sensor is used to detect the suspended matter concentration in the water, and the chlorophyll a sensor is used to detect the chlorophyll a concentration in the water. The present invention immerses the suspended matter sensor and the chlorophyll a sensor in the water and directly calculates the water transparency using a water transparency calculation model. The measurement results are objective and the detection method is accurate and rapid.

The invention relates to a semi-closed lake water ecological restoration method applied to the related field of water treatment, ecological restoration of a semi-closed lake is realized through lake area water ecological system construction, environment-friendly desilting and sludge treatment, and communication regulation and control of a composite ecological revetment, an estuary wetland and a water system, so that the transparency of a water body is improved, and the service life of the semi-closed lake is prolonged. A reproducible plateau lake ecological restoration technical system is formed; besides, under the action of the composite bank protection structure of mechanical supporting, seepage prevention and ecological buffering, on one hand, the lake bank is effectively protected, the anti-scouring capacity of a bank slope is improved, internal water and soil are effectively maintained, water and soil loss is not prone to occurring, and meanwhile under the action of a loosening monitoring unit, the stability condition of the composite bank protection structure can be effectively monitored, and the service life of the composite bank protection structure is prolonged. When water and soil loss of the revetment due to excessive scouring occurs, the revetment can be found in time, workers can maintain the revetment in time conveniently, and continuous expansion of the abnormal range of the bank side is reduced.

The application discloses a blue-green algae ecological restoration system and an ecological restoration method, which comprise a regional monitoring assembly, a video real-time supervision center module, a data acquisition analysis conversion module, a customer prompt terminal and a gigabit network cloud end; a plurality of regional monitoring assemblies are arranged around the ecological water area range, and the data output end of the regional monitoring assembly is connected with the data acquisition management module end. The blue-green algae ecological restoration system and the ecological restoration method can degrade harmful substances such as ammonia nitrogen, nitrite, sulfide, BOD and COD in water, eliminate peculiar smell of water, improve water quality and water bottom, enhance photosynthesis of phytoplankton in water, promote growth of zooplankton and phytoplankton, balance reproduction of algae in water, effectively inhibit outbreak of blue-green algae, reduce heavy metal ions in water through multiple effects such as ion exchange, complexation and adsorption of biochemical metabolism, improve water transparency, adjust ecological balance of water, and maintain ecological self-purification ability of the aquatic environment.

The utility model belongs to the technical field of water treatment, and provides a long-acting water transparency improving system which comprises a pretreatment unit, a magnetic coagulation device, a magnetic disk separation device and a magnetic medium recycling device which are sequentially connected through pipelines, wherein the water inlet end of the pretreatment unit is connected with a treatment target water area; a water outlet of the magnetic disc separation device is connected back to a treated target water area, and a magnetic floc outlet is connected with the magnetic medium recycling device; and a magnetic medium circulating discharge hole of the magnetic medium recycling device is connected to the magnetic coagulation device. The system adopts magnetic coagulation and magnetic separation to perform bypass purification on a water body, the occupied area is small, the starting speed is high, pollutants such as algae and phosphorus nutritive salt can be effectively removed, and the transparency of the water body is rapidly improved; the method is further combined with in-situ aquatic plants for application, and has the advantages of short treatment time, good purification effect and the like.

The invention discloses a water transparency estimation method based on OLCI data, and belongs to the field of environmental science and remote sensing monitoring. The method comprises the following steps: S1, data acquisition: setting a plurality of sampling points in a target area, and obtaining a water transparency measured value; s2, data preprocessing: obtaining water-leaving reflectivity data, and eliminating external interference factors; s3, constructing an estimation model: constructing a transparency remote sensing estimation model in a wave band combination form based on the off-water reflectivity characteristics of the Sentinel-3OLCI sensor; and S4, model verification: carrying out linear fitting on an estimated value and a measured value. According to the method, the effect of estimating the transparency of the inland water body is good, the model precision is enough to support subsequent research through verification of an actual measurement sample point model, and the method has extremely high accuracy and applicability.

The invention discloses an underwater spectrum compensation method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring water transparency under a current water depth value and a historical water depth value; performing smooth filtering processing on the current water depth value based on the historical water depth value to obtain a smooth water depth value; determining a transparency gain factor based on the water transparency; performing gain processing on the smooth water depth value based on the transparency gain factor to obtain a target water depth value; based on the target water depth value, a control signal of the spectrum compensation assembly is generated, so that the spectrum compensation assembly adjusts the light transmittance of the preset spectrum band according to the control signal. The water transparency is introduced as a dynamic adjustment parameter, and the current water depth is smoothed in combination with historical water depth information, so that the stability of water depth evaluation is improved; therefore, a more accurate compensation control signal matched with the actual underwater optical environment can be generated, and the adaptability and compensation accuracy of the spectrum compensation assembly in the complex underwater environment are enhanced.

The invention relates to the technical field of water environment treatment and ecological restoration, and discloses a water transparency improving device and method based on an intelligent linkage chemical dosing system. The water transparency improving device based on the intelligent linkage chemical dosing system comprises a water transparency sensor, a suspended matter concentration sensor, a chlorophyll a sensor, a data acquisition and judgment module, a chemical dosing control module, a chemical storage and dosing module and a chemical spraying module. The water body transparency sensor, the suspended matter concentration sensor and the chlorophyll a sensor are arranged in a target water body; the data acquisition and judgment module is respectively connected with the water transparency sensor, the suspended matter concentration sensor and the chlorophyll a sensor; the medicament adding control module is respectively connected with the data acquisition and judgment module and the medicament storage and adding module; and the medicament storage and addition module is connected with the medicament spraying module. The intelligent and automatic improvement of the transparency of the water body is realized.

The invention provides a water transparency monitoring method and equipment based on turbidity measurement, belongs to the technical field of water environment monitoring, and aims to solve the problems of poor accuracy and stability of a monitoring result caused by poor fitting degree of a conversion model and neglect of environment illumination interference in the prior art. The method comprises the following steps: collecting an original turbidity value of a water body, water surface incident illumination intensity, a weather type and a water body type; compensating and correcting the original turbidity value based on the collected parameters to obtain a compensated turbidity value; and substituting the compensated turbidity value into a preset power exponent relational expression, and calculating to obtain the transparency of the water body. The equipment comprises an acquisition module and a processing module and is used for executing the method. According to the invention, through a strategy of first compensation and then conversion, the ambient light interference is effectively offset, the monitoring precision and stability of the full turbidity interval are improved, and low-cost and automatic continuous monitoring can be realized.

The utility model relates to the technical field of water ecological purification, and discloses a multifunctional ecological combined base net which comprises a floating body, the floating body floats on the water surface and is designed at the rear end of an upstream face, a base net body is installed at the lower end of the floating body and arranged in a water area, and the floating body is connected with the base net body. And a high-strength phosphorus removal filler is mounted at the lower end of the base net body. According to the multifunctional ecological combined base net, the base net body is of a latticed structure and a mesh structure, plant roots are fixed, emergent aquatic plants and submerged plants are assisted to grow, the self-cleaning capacity of a water body is enhanced, a biological fiber rope is installed in the base net body and is of a bionic structure, and the bionic structure attracts microorganisms; meanwhile, organic matters are decomposed through microbial metabolism, pollutants such as nitrogen and phosphorus in the water body are reduced, meanwhile, the geotechnical cloth and the ecological base net form a multi-layer net-shaped structure, and the multi-layer net-shaped structure can slow down the flow speed, promote sediment and suspended matter sedimentation and improve the transparency of the water body.

The invention provides a water-leaving reflectivity determination method, a water transparency determination method and a water-leaving reflectivity determination device. According to the specific implementation scheme, a water surface image is obtained, the image content of the water surface image comprises a water body, a color card and a reflector, and the color card comprises a plurality of color blocks with different reflectivity; cutting the water surface image to obtain a first image block related to a water body, a second image block related to mirror surface information of a reflector and a plurality of third image blocks related to a color card; determining a first reflectivity related to the first image block and a second reflectivity related to the second image block based on the pixel information of the first image block, the pixel information of the second image block, the pixel information of the plurality of third image blocks and the reflectivity information of the plurality of color blocks; the off-water reflectance is determined based on the first reflectance and the second reflectance.

This invention relates to the field of aquaculture technology, specifically to a remediation agent for aquaculture water environments and its preparation method. The remediation agent comprises a modified biochar composite material, Chlorella microspheres, a cross-linking agent, and a microbial composite inoculant. The modified biochar composite material is prepared through steps such as mixing attapulgite with biomass raw materials, acid activation, and pyrolysis, and further modified with tannic acid to enhance its adsorption capacity. The Chlorella microspheres are prepared using sodium alginate and CaCl2 solution, exhibiting good suspension and stability. The microbial composite inoculant contains various beneficial bacteria that can decompose organic matter and reduce ammonia nitrogen and nitrite content. The remediation agent binds the components together using a cross-linking agent to form granules, facilitating application and recovery. This remediation agent possesses highly efficient pollutant removal capabilities, significantly improving water quality in aquaculture water bodies, increasing water transparency, increasing dissolved oxygen, and promoting the health and stability of aquatic ecosystems.

The utility model provides a water transparency detection device which comprises a base, a sliding groove is formed in the base, a sliding block is movably installed in the sliding groove, a limiting seat is fixed to the sliding block, a supporting seat is welded to the limiting seat, a box body is fixedly installed on the supporting seat, a driving motor is fixedly installed on the box body, and the driving motor is connected with the sliding groove. A fixing pipe is fixedly installed at the bottom of the supporting seat, an open groove is formed in the fixing pipe, a connecting rope is movably installed in the open groove, and a monitoring assembly is fixed to one end of the connecting rope. When the water transparency detection device is used, the fixed pipes are combined and mounted to form a straight pipe, the straight pipe is used for limiting and fixing the connecting rope, the phenomenon that the connecting rope shakes during use to cause movement of a marking point is avoided, and observation and detection under the vertical stability in the later period are facilitated.

The present application relates to the field of ecological restoration, and more particularly to a method for restoring the ecology of a coastal wetland, which comprises the following steps: removing invasive species from the area to be restored; laying an ecological restoration substrate; planting the sea grass in a cluster-strip composite pattern; introducing biological communities in batches every two months; setting up a tidal response system and an intelligent monitoring platform to monitor the condition of the area to be restored; and the ecological restoration substrate comprises 40% oyster shells, 40% coral sand and 20% bentonite. The method for restoring the ecology of a coastal wetland provided by the present application forms an "algae-grass barrier" by planting sea grass and eucheuma alternately, effectively improves the water transparency and promotes photosynthesis; the disturbance behavior of benthic animals such as sea cucumbers enhances the oxygen penetration depth and oxidation-reduction potential (Eh) of the sediments, and improves the bottom environment; and the gradient buoyancy planting device realizes tidal self-adaptation, ensuring the stable growth of the sea grass under different water level conditions.

The invention discloses a water transparency inversion method and system based on a visible light remote sensing image, and relates to the field of water color remote sensing. Preprocessing the water body remote sensing image to obtain the reflectivity of the water body remote sensing image; determining the remote sensing reflectivity of the water body according to the reflectivity of the water body remote sensing image; according to the remote sensing reflectivity of the water body, the inherent optical characteristics of the water body are obtained through a QAA algorithm, and the inherent optical characteristics of the water body comprise an absorption coefficient and a backscattering coefficient; determining a diffusion attenuation coefficient of a semi-analysis model according to the inherent optical characteristics of the water body; determining the FUI index of the water body according to the remote sensing reflectivity of the water body; and determining the transparency of the water body according to the diffusion attenuation coefficient and the FUI index of the water body. According to the method, the transparency of the water body can be accurately monitored in a large range in an inversion mode, and the monitoring requirement for the water quality parameter, namely the transparency, of the water body is met.