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63 results about "Aquatic ecosystem" patented technology

An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems.

Method and device for identifying influence factors of stability of multi-trophic-level aquatic biocenosis

PendingCN121561336AMachine learningAquatic ecosystemBiocoenosis
The invention provides a method and a device for identifying multi-trophic-level aquatic biocenosis stability influence factors, and relates to the technical field of aquatic ecosystem analysis. The method comprises the following steps: acquiring a water body physicochemical parameter data set and a multi-trophic-level aquatic biocenosis data set of a plurality of sampling points of a target water area; constructing a species association network system for stability calculation based on the multi-trophic-level aquatic organism community data set; calculating a stability index representing the overall stability of the community based on the network system; and finally, analyzing the contribution degree of the water physical and chemical parameter data set to the stability index by utilizing a machine learning model, and identifying the key influence factor according to the contribution degree. According to the method, the key physical and chemical factors influencing the stability of the ecological system can be systematically and accurately identified by integrating the multi-nutrition-level community structure and machine learning, and the targeting and management efficiency of the restoration of the water ecological system are improved.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Fishery water area ecosystem service value improvement evaluation method and device based on INVEST model

The invention discloses a fishery water area ecosystem service value improvement evaluation method based on an INVEST model and a related device, and the method comprises the steps: collecting multi-layer vertical profile water quality data in real time through setting an underwater sensor matrix with adaptive profile adjustment capability; the method comprises the following steps: acquiring hyperspectral image data, multispectral and SAR data and fishery fishing and breeding data, and generating a standardized spatio-temporal data set; inputting the standardized spatio-temporal data set into an INVEST evaluation model to synthesize the standardized spatio-temporal data set into an ecological system service total value; simulating a dynamic evolution track of the service value of the ecological system; and performing global optimization on the dynamic evolution trajectory of the ecological system service value to obtain an ecological system service value improvement optimization strategy set. According to the method, an underwater sensor matrix with adaptive profile adjustment capability is created for the first time, intelligent tracking and continuous monitoring of a key vertical ecological layer of a water body are realized, an optimal measure combination is output by predicting a future service value evolution trajectory in a rolling manner, and a time sequence and space deployment map is implemented.
Owner:ZHEJIANG OCEAN UNIV

System and method for aquatic ecosystem assessment based on coupled mechanism models of aquatic habitats

The present application relates to the technical field of ecological environment, in particular to a water ecological system evaluation system and method based on a water habitat coupling mechanism model. The technical problem is to integrate key ecological mechanisms while maintaining high computational efficiency. The system includes: an input layer that receives measured data related to the water environment of the target water habitat; a configuration layer that selects several indicators from the geographic indicators, hydrological indicators, hydrodynamic indicators and meteorological indicators input by the input layer, and configures multiple different environmental factors; key ecological processes are integrated through selective mechanism coupling, and interspecific competition factors are configured for algae and biological interaction factors are configured for fish; the simulation layer uses a differential evolution algorithm to automatically calibrate and optimize the parameters configured by the configuration layer; obtain the spatial and temporal changes of aquatic plants, algae and fish; the output layer outputs the spatial distribution results of the three species of aquatic plants, algae and fish, and provides suggestions for scenario analysis results and environmental economic balance decision-making.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

A specific detection method for *Daphnia magna* in nearshore marine aquatic ecosystem assessment

This invention provides a specific detection method for *Daphnia magna* in nearshore marine aquatic ecosystem assessment. Based on obtaining the species-specific antigenic protein and key immunogenic peptides of *Daphnia magna*, a highly specific monoclonal antibody was successfully prepared and purified, and a colloidal gold side-flow chromatography rapid detection test strip was prepared using this antibody. The amino acid sequence of the antigenic protein is SEQ ID NO:1 or SEQ ID NO:2. This invention, by screening for the *Daphnia magna* species-specific antigen and its corresponding monoclonal antibody, combined with paired antibodies prepared from the full-length protein, and using them to develop a colloidal gold rapid immunoassay product, achieves for the first time high-throughput, rapid on-site screening of this species, significantly improving the efficiency and accuracy of marine ecological monitoring, ship ballast organism inspection, and aquaculture environmental assessment.
Owner:MARINE ENVIRONMENT MONITORING CENT STATION OF GUANGXI ZHUANG AUTONOMOUS REGION

Artificial reef system for the prevention and monitoring of marine biodiversity

UndeterminedTN2024000378A1Aquatic ecosystemCoastal erosion
The present invention highlights the use of an innovative submersible structure made of concrete enriched with dead algae to promote marine biodiversity. This biodegradable material ensures better integration into aquatic ecosystems while providing a sustainable habitat for marine organisms. Furthermore, the integration of modern technologies such as sensors, sounders, cameras, GPS, modems, and underwater drones is highlighted in both texts. These tools enable real-time monitoring of artificial reefs, ensuring precise tracking of changes in marine habitats and local ecosystems. This monitoring ensures not only effective management of marine ecosystems but also enhanced protection against threats such as coastal erosion. Finally, both sections agree on the environmental and economic benefits of the project. In addition to promoting marine conservation, this invention paves the way for sustainable activities, including ecotourism, while emphasizing ecological sustainability and technological innovation. The project thus illustrates a holistic approach to addressing the environmental challenges linked to the degradation of marine ecosystems. The project represents a significant step forward in the management of marine ecosystems thanks to the combination of modern technological solutions and innovative, eco-friendly materials. By combining biodegradable artificial reefs with advanced monitoring devices, this solution offers an integrated approach to restoring marine biodiversity, protecting coastlines, and promoting sustainable activities. It represents an exemplary model of responsible and technological development, meeting current environmental conservation needs while offering viable economic opportunities.

Rapid restoration construction method for aquatic ecosystem

The invention relates to the field of aquatic ecosystem restoration, and discloses an aquatic ecosystem rapid restoration construction method which comprises the following steps: stripping a bottom mud surface layer by utilizing a controlled hydraulic vortex field to form suspended particle cloud; double closed-loop intelligent control is started during construction, the physical state of operation is adaptively adjusted based on real-time feedback of process acoustic signals, meanwhile, the biological potential and the environmental risk of the suspended particle cloud are diagnosed online, and according to the decision, a corresponding repairing preparation is injected; according to the invention, by constructing an intelligent operation system with unified physical execution and biochemical decision, the restoration mode conversion from traditional exogenous coverage to endogenous potential awakening is realized, and real-time diagnosis and adaptive regulation and control can be carried out on each operation point location in a complex and uncertain underwater environment, so that blind construction is avoided, and the construction efficiency is improved. And the effectiveness of ecological restoration is improved.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD +1

Water area resource utilization grading and pricing method based on spatial heterogeneity correction

PendingCN121810361ARealize OKImplement refined correctionsCommerceAquatic ecosystemEnvironmental resource management
The invention discloses a water area resource utilization grading and pricing method based on spatial heterogeneity correction. The method comprises the following steps: S1, evaluating the service value of a water area ecosystem; s2, determining a water area resource utilization standard price; s3, dividing water area space levels; and S4, correcting the water area resource utilization standard price. According to the method, the water area resource utilization standard price is determined by quantifying the influence of water area resource utilization on the ecological system service value, the hierarchical water area resource utilization coefficient reflecting spatial heterogeneity is introduced for spatial correction, and finally the water area resource utilization hierarchical guidance price is formed. According to the method, a complete technical process from ecological system service value profit and loss quantification to space differentiation pricing is constructed, the water area resource utilization grading guidance price is determined, the technical blank in the field is filled, a scientific basis is provided for a water area resource management decision, and the economic benefit of the water area resource management decision is improved. The method has good operability, acceptability and popularization and application prospects, and ecological protection and sustainable utilization of water resources can be promoted.
Owner:ZHEJIANG INST OF HYDRAULICS & ESTUARY

Microbial improvement device for water ecosystem

The utility model discloses a kind of microbial modification devices for aquatic ecosystem, it is related to biological ecological technical field, including ship body, the tail of the ship body is connected with mounting bracket, mounting bracket is connected with winding roller, winding roller is connected with connecting rope, another end of connecting rope is connected with installation box, storage tank is connected in installation box, the bottom of storage tank is equipped with discharge port;The utility model drives semicircular special-shaped driving gear by using submersible motor, drives fixed rack and plugging plate, realizes the intermittent stability of microorganism and is put, avoids the fluctuation of the amount of release caused by the unstable speed of ship body.Meanwhile, fixed rack moves and drives distribution plate swing, in combination with the flow in installation box, the microorganism that falls is evenly stirred and discharged at water outlet, and the setting ensures the uniform distribution of microorganism in water body, so that microorganism can be more fully contacted with water body.
Owner:CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP +1

Slow-release hydrogen production material containing nanosilicon and its application in aquatic ecosystem restoration

The present application relates to a kind of gel microspheres containing nanometer silicon, the gel microspheres include 1-10wt% sodium alginate, 0.01-20wt% nanometer silicon, 1-10wt% crosslinking agent.The gel microspheres of the present application can effectively slow down the hydrogen production rate of nanometer silicon while not too much loss of total hydrogen production, extend the hydrogen production time.In addition, the gel microspheres can effectively prevent nanometer silicon from diffusing in water body, prevent nanometer silicon from directly contacting biology and producing toxic effect, and safely repair aquatic ecosystem.
Owner:BEIHANG UNIV

A slow-release hydrogen production material containing nano-silicon and its preparation method

This invention is a divisional application of Chinese invention patent application No. 202310608706.5, filed on May 28, 2023, entitled "Slow-Release Hydrogen Production Material Containing Nano-Silicon and Its Application in Aquatic Ecosystem Restoration". This invention discloses a slow-release hydrogen production material containing nano-silicon and its preparation method, belonging to the field of environmental protection technology. The invention involves sterilizing a 2-5% sodium alginate solution, cooling it to room temperature, adding 0.3-0.5% wt of nano-silicon to the sodium alginate solution, and stirring at 500-600 r / min at room temperature for 30-60 min to obtain a nano-silicon sodium alginate solution. The prepared nano-silicon sodium alginate solution is then added dropwise at a volume ratio of (1-5):1 to a 2-5% CaCl2 solution at a rate of 1 drop / second, and allowed to stand for 5-10 min to obtain the final product. The layered structure of this material allows the nano-silicon material to be uniformly distributed and stably produce hydrogen within the sphere.
Owner:BEIHANG UNIV

Watershed multi-scale water network optimization scheduling model system based on ecological restoration

The invention discloses a watershed multi-scale water network optimization scheduling model system based on ecological restoration, and relates to the technical field of ecological restoration, and the system comprises the steps: building a coupling model through data collection, hydrological simulation and hydraulic engineering digitization, simulating different scheduling scenes, and building a scheduling rule base with ecological flow as a target according to the data collection, hydrological simulation and hydraulic engineering digitization; and finally, a scheduling scheme is intelligently generated based on real-time flow monitoring and a rule base, and optimal scheduling and ecological guarantee of a drainage basin water network are realized. By constructing the ecological scheduling rule base and monitoring the flow in real time, the downstream ecological flow is guaranteed, and the aquatic ecosystem is restored; by means of hydrological simulation and engineering digitization, reservoir scheduling is optimized, and the utilization efficiency of water resources is improved; an intelligent decision-making module is integrated, so that quick response and automatic scheduling are realized; and through multi-scene deduction, a scientific basis is provided for drainage basin planning, and the test cost and uncertainty are reduced.
Owner:SHUIFA PLANNING & DESIGN CO LTD +1

Ecological restoration method for regulating and fixing heavy metals by utilizing rhizosphere effect

The invention discloses an ecological restoration method for regulating and fixing heavy metals by utilizing a rhizosphere effect, and belongs to the technical field of water environment ecological restoration. According to the method, the pollution degree, form and release risk of target heavy metal in the sediment are determined through pollution diagnosis, then submerged plants with specific rhizosphere oxygen secreting and acidification capacity are screened in a targeted mode for single planting or mixed planting, a stable submerged plant community is constructed, iron and manganese oxides are formed through induction of the plant rhizosphere effect, and the target heavy metal in the sediment is obtained. According to the method, the in-situ remediation of heavy metal pollution is realized, the function of rhizosphere microflora is regulated and controlled, the form of the heavy metal with higher activity is converted into a stable form or is adsorbed and fixed on a rhizosphere iron membrane, meanwhile, the remediation process can be monitored through an in-situ high-resolution monitoring technology, and finally, the in-situ remediation of the heavy metal pollution and the collaborative restoration of a water ecosystem are realized. The method is clear in mechanism, high in pertinence, environment-friendly, low in cost and monitorable in effect, and can be widely applied to remediation of sediment heavy metal pollution of shallow water bodies such as lakes, river channels and ponds.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

Composite material for treating wastewater and method for preparing and using the same

This invention discloses a composite material for wastewater treatment, including an oxygen-vacancy indium oxide / carbon composite material. The indium oxide / carbon composite material uses modified activated carbon powder as a substrate, and through in-situ co-precipitation and thiourea-assisted reduction, a nano-active layer rich in high concentrations of oxygen vacancies is uniformly constructed on the surface of the carbon powder and within its pores. This invention also discloses methods for preparing and applying the composite material. The composite material obtained by this invention can not only efficiently treat long-chain PFAS pollutants, but also exhibits excellent removal efficiency for short-chain PFAS that are difficult to remove using traditional technologies, which is of significant practical importance for ensuring drinking water safety and restoring complex aquatic ecosystems.
Owner:SHAOGUAN INKRIS NEW MATERIALS CO LTD

An ecological damage event influence factor identification method and system for an ecological system structure function

The application discloses an ecological damage event influence factor identification method and system for the structure and function of an ecological system in the technical field of ecological environment research, and the system comprises an environmental information collection module, a monitoring module, a processing module, an identification module, a verification module, and an alarm module.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

A restoration apparatus for restoring an aquatic ecosystem

The present application belongs to the technical field of water ecological system restoration, and particularly relates to a restoration device for restoring water ecological system, which comprises a triangular ring frame, a driving table, a cyclone type pollution cleaning mechanism and a wind guide type resistance flow mechanism, the driving table is arranged on the upper wall of the triangular ring frame, the cyclone type pollution cleaning mechanism comprises a flow stirring assembly, a driving assembly and a sundry storage assembly, the flow stirring assembly is arranged at the bottom of the triangular ring frame, the driving assembly is arranged on the upper wall of the driving table, and the sundry storage assembly is arranged outside the flow stirring assembly. The restoration device for restoring water ecological system can generate a gushing water flow in the downstream area of the cyclone, prolong the residence time of the floating objects in the cyclone area, and thus improve the capture efficiency of the floating objects on the water surface.
Owner:SHANXI GEOLOGICAL ENG SURVEY INST CO LTD

A waste recycling system for rural domestic sewage

The present application relates to a kind of waste recycling system for rural domestic sewage, belong to environmental engineering water pollution control technical field.The system includes domestic sewage regulating reservoir, micro-algae symbiotic purification unit, aquatic ecosystem unit, and water quality on-line monitoring system is equipped at the effluent of micro-algae symbiotic purification unit and aquatic ecosystem unit, and is connected with data processing terminal.Polluted water into domestic sewage regulating reservoir is settled under the action of gravity in water large particle material, and the water body after preliminary treatment of domestic sewage is discharged into micro-algae symbiotic purification unit by outlet, and the water after purification by micro-algae symbiotic purification unit enters aquatic ecosystem unit, and aquatic plant is planted in the aquatic ecosystem unit.The system can solve the problem of current rural domestic sewage and realize the recycling of waste.
Owner:ZHENGZHOU UNIV +2

Hydrolytic code water ecological restoration device convenient to adjust

This invention discloses an easily adjustable water decoding aquatic ecosystem restoration device, relating to the field of aquatic ecosystem restoration technology. It includes a support plate, a float installed at the bottom of the support plate, and a mounting block fixedly connected inside the support plate and inside the float. An adjusting component is installed inside the mounting block, and a rotating component is installed on the surface of the support plate. The easily adjustable water decoding aquatic ecosystem restoration device provided by this invention, by incorporating an adjusting component and a purification component, allows for adjustment of the position and distance of the purification component during use. The distance can be adjusted according to the growth of the ecological substrate, further solving the problem of growth limitations caused by a fixed ecological substrate, and further improving the purpose of water purification. Furthermore, when removing the device from the water source, the adjusting component can be reversed to retract the purification component into the mounting block, thus protecting the ecological substrate during removal.
Owner:SHANGHAI SHANHENG ECOLOGICAL TECH CO LTD

Water network model construction method and system based on digital twinning

The application discloses a water network model construction method and system based on digital twinning. The model construction method comprises the following steps: integrating data resources and obtaining water network and geographical environment information; determining attribute items and topological relations, building a concept model; abstracting information water network and constructing a water network model; binding a buoy to collect fish school and water flow data, and cleaning standardized data; calculating the correlation between fish school movement and water flow; optimizing water network model parameters, optimizing ecological niche, and analyzing and quantifying the relationship between fish school and environment. The water network model construction method can construct an accurate and comprehensive water network model by integrating existing data resources in the region, improve the accuracy of the model, and provide a solid foundation for subsequent analysis and optimization. By collecting fish school trajectory data and water flow data, the correlation between fish school movement and water flow can be analyzed in depth, which helps to reveal the internal rules of the aquatic ecosystem.
Owner:GUIZHOU SURVEY & DESIGN RES INST FOR WATER RESOURCES & HYDROPOWER

A method for detecting the degree of stress of river water ecology

PendingCN122288477AAquatic ecosystemHydrometry
This invention relates to the field of water pollution detection technology and discloses a method for detecting the degree of stress on river aquatic ecosystems. The method includes: acquiring river drought indicators, environmental water quality indicators, and aquatic organism status indicators and constructing a synchronous monitoring sequence; calculating the cross-correlation between indicators and determining the characteristic lag step; correcting the temporal offset of the synchronous monitoring sequence based on the characteristic lag step and constructing a time-aligned feature data matrix; calculating the correlation components of each indicator relative to the evaluation standard and establishing a correlation model; identifying the variation nodes of aquatic ecosystem state variables and fitting the probability density function of the feedback evolution sequence to determine the evaluation threshold and confidence interval. This invention eliminates the logical bias caused by the sampling synchronicity assumption, making the assessment process conform to the hydrological and biochemical evolution law and improving the physical self-consistency of aquatic ecosystem stress identification.
Owner:SHENZHEN POLYTECHNIC

A multifunctional modular aquatic ecosystem balancing system and method

PendingCN122271268AAquatic ecosystemFiltration
This invention discloses a multifunctional modular aquarium ecological balance system, comprising: multiple modules, each module having a cavity and a through hole on its side wall; a suspension bracket for detachably supporting the multiple modules above the water body to be treated; multiple modules assembled into an integrated body, with the cavities of adjacent modules connected by connecting pipes passing through corresponding through holes to form a series water flow path; a water pump for transporting the water body to be treated to the beginning of the water flow path; wherein, the bottom of the end module located at the end of the water flow path has a filter hole for allowing the water flowing through the end module to flow back to the water body to be treated. The purpose of this invention is to provide a multifunctional modular aquarium ecological balance system and method to solve the technical problems of existing aquarium filtration devices, such as single function, poor scalability, and low ecological synergistic purification efficiency, achieving a flexible integration of filtration and plant cultivation, and optimizing the water flow path to promote ecological balance.
Owner:东莞市黄江衡清商贸行(个体工商户)

Carbon reserve and carbon flux expression method of watershed scale ecosystem

The invention discloses a watershed scale ecosystem carbon reserve and carbon flux expression method, which belongs to the technical field of carbon reserve and carbon flux expression methods, and realizes dynamic expression of watershed scale ecosystem carbon reserve and carbon flux by constructing a carbon reserve matrix and a carbon flux matrix and integrating transverse carbon migration and dissolved inorganic carbon flux. The carbon reserve matrix comprises overground and underground biomass carbon reserves of an arbor layer, a shrub layer and a herbaceous layer and carbon reserves of dead standing trees, litters, a soil layer, a wetland and an aquatic ecosystem of each pattern spot in the drainage basin, and calculating the total carbon reserves of each pattern spot and the drainage basin; the carbon flux matrix comprises the carbon reserve variable quantity and the carbon migration flux of each pattern spot carbon library in different time intervals, and the carbon exchange flux, the water body carbon flux and the DIC related flux of the ecological system and the atmosphere at the same time.
Owner:INST OF KARST GEOLOGY CAGS

XA solution to control and inhibit the growth and reproduction of invasive water hyacinth and other similar invasive plants

Water hyacinth (Echhornia Crassipes) is an aquatic plant known as one of the most important and dangerous aquatic weeds globally. This plant has significant effects on the ecosystem and aquatic environment, causing disruptions in sea transportation and sometimes leading to the destruction of aquatic life in its habitat. Water hyacinth has led to pollution of geographical areas in many countries, recognized as an environmental problem that disrupts the food cycle, water quality, and marine industries. The destructive effects of this plant are so severe that some sociologists consider it a key factor in poverty and hindering the development of countries and the planet. Each water hyacinth plant produces about 1 liter of water waste daily, posing a serious threat to the world's fresh water resources due the millions of plants worldwide. Until today, various chemical, biological and mechanical solutions have been utilized to control this invasive plant. These strategies have not had a significant impact in some geographical areas, or on the contrary, they have had harmful effects (such as the effects of using strong herbicides) on the environment and aquatic ecosystems. Notably, many solutions have not effectively targeted the abundant and resilient seeds of water hyacinth. By utilizing biological signaling (biological messages) to promote bacterial symbiosis in water hyacinth for nitrogen fixation from the atmosphere, and spraying a solution without herbicides or strong poisons, with the aim of establishing the cycle of nitrogen fixation in the plant by inhibiting growth and or the effect on the bacterial symbiotic species in water hyacinth, the production of seeds in the plant is very little and even stopped, as well as the effects of decline and acceleration of the aging process of water hyacinth and the destruction of the plant appear. As a result, we will witness a decrease in the plant population, decrease in growth and reproduction, a significant decrease in water consumption, and a decrease in the quality of the biological tissues of the plant as a result of limiting the resources created for the water hyacinth plant. According to the investigation and study of the effects of this method on micro-organisms and macro-organisms in the water and its margins, it seems that this innovative solution by targeting the fixation of nitrogen from the air and disruption of symbiosis in water hyacinth has a significant effect and the lowest environmental risk compared to other methods.
Owner:EBRAHIMI KHEIMESARI AMIR HOSSEIN +1

Conveying device for coal mine underground tunneling

The utility model belongs to the field of coal mine conveying, and particularly relates to a conveying device for coal mine underground tunneling, which comprises a main body, a vibration cleaning component and an adsorption collecting device, the vibration cleaning assembly is provided with a base, a servo motor is fixedly installed on one side of the base, a first belt wheel is fixedly installed at the output end of the servo motor, one side of the first belt wheel is in transmission connection with a transmission belt, and the other side of the transmission belt is in transmission connection with a second belt wheel. When a servo motor operates, a first belt wheel at the output end rotates, a second belt wheel is driven by a transmission belt, a transmission shaft rotates, and then a turntable is driven, in the rotating process of the turntable, a linkage rod drives a connecting frame to do reciprocating motion, the connecting frame drives a base provided with a vibration conveying plate at the top to shake through a plurality of swing rods, and particles in a coal mine are shaken out; the function of vibration separation is achieved, the problem that an aquatic ecosystem and surrounding soil are damaged is solved, and the adaptability in use is improved.
Owner:KUCHE YONGXIN MINING CO LTD

A simplified method and system for assessing the resilience of aquatic ecosystems

This invention discloses a method and system for simplifying indicators for assessing the resilience of aquatic ecosystems. The method generates a multimodal retrieval strategy and obtains diverse text by parsing the assessment scenario instructions using thought chain analysis. It then extracts indicator relationships from the text, analyzes the coupling relationships between indicators, constructs a knowledge graph of aquatic ecological indicators, and forms a pool of all candidate indicators. Semantic and correlation analyses are used to calculate the correlation between indicators, eliminating highly correlated redundant indicators to form a preliminary simplified indicator set. The preliminary simplified indicator set and selection criteria are output. After verification, the final simplified indicators are output. This invention solves the problems of complex indicator systems, high collinearity and redundancy, and strong subjectivity in traditional aquatic ecological assessments by integrating the logical constraints of knowledge graphs with the semantic understanding capabilities of large-scale models. It achieves scientific dimensionality reduction and dynamic optimization of assessment indicators, possessing simplicity, interpretability, and engineering application value.
Owner:NANJING UNIV

Method for evaluating risk of micro-plastic and sea salt combined pollution ecological environment in tidal basin by using myriophyllum spicatum

The invention provides a method for evaluating the risk of combined pollution of micro-plastics and sea salt in a tidal basin to an ecological environment by using myriophyllum spicatum, and the method comprises the following steps: simulating a tidal section water body which comprises polystyrene micro-plastics and a sea salt solution; the method comprises the following steps: selecting myriophyllum spicatum as a test plant, pretreating the myriophyllum spicatum, transplanting the myriophyllum spicatum into a water body of a tidal section, and carrying out composite stress culture; sampling after culture is finished, measuring physiological and biochemical indexes of the myriophyllum spicatum, and evaluating the risk of combined pollution to the aquatic ecosystem. The method is suitable for a tidal basin which is a special transition zone where fresh water intersects with the ocean, can accurately identify the degree of harm of micro-plastic and sea salt combined pollution to an aquatic ecosystem, and provides technical support for combined pollution ecological risk management and control.
Owner:SOUTH CHINA UNIV OF TECH

Evaluation method and system for ecological system of water ecological space in reservoir area

The invention provides a reservoir area water ecological space ecosystem evaluation method and system, and the method comprises the steps: obtaining a multiband spectral remote sensing image, and constructing a hyperspectral and vegetation remote sensing image; obtaining a ground feature category and spatial distribution through a spectrum detection network; modeling correlation between the vegetation index and the leaf area by using a Bayesian network, and constructing a leaf area network fusing a conditional probability structure and a deep neural network; screening a vegetation region based on ground feature distribution, and calculating a pixel-level leaf area index; and evaluating the structural integrity and health state of the ecological system by combining the leaf area index and the ground feature information. According to the method, the incidence relation between the vegetation indexes is quantified through the Bayesian network, the spatial features of the three-dimensional image are extracted in combination with the convolutional neural network, the vegetation growth state of the reservoir area and the spatial heterogeneity of the water ecosystem are effectively captured, and the method is suitable for the ecological space of the reservoir surface, the hydro-fluctuation area and the land area. And reliable technical support is provided for ecological environment assessment and dynamic monitoring and protection.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD +1

Aquaculture water environment remediation agent and preparation method thereof

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.
Owner:JIANGSU FURUND TECH CO LTD

Device and method for integrated monitoring of aquatic ecosystem based on IoT technology and machine learning technology

PCT designated stageWO2026100777A1Data processing applicationsMeasurement devicesAquatic ecosystemAquatic biota
The present invention relates to a device and a method for integrated monitoring of an aquatic ecosystem based on IoT technology and machine learning technology. The device comprises: an underwater state monitoring unit for acquiring water quality information, aquatic organism community information, and habitat state information through a mobile monitoring device and a fixed monitoring device remotely installed underwater, and then wirelessly transmitting the acquired information using an IoT communication method; an environment monitoring unit for collecting environment information by accessing an external environment monitoring device via the Internet; a data collection unit for preprocessing the water quality information, the aquatic organism community information, the habitat state information, and the environment information into a data form recognizable by a machine learning model, and then collecting and storing the preprocessed data as aquatic ecosystem information; a data analysis unit including a machine learning model in which a correlation between aquatic ecosystem information and aquatic ecosystem health state has been pre-trained, the data analysis unit predicting an aquatic ecosystem health state corresponding to currently acquired aquatic ecosystem information through the machine learning model and then providing guidance to a user; and a power supply unit for generating driving power from commercial power and directly supplying the driving power to the data collection unit and the data analysis unit through an internal power line, and wirelessly supplying the driving power to the underwater state monitoring unit through Power over Ethernet communication.
Owner:JJ& CO INC

A method for assessing the health of aquatic ecosystems

This application relates to a method for assessing aquatic ecological health, belonging to the field of environmental monitoring and information technology. The method includes: acquiring water quality data from multiple samples through multi-source acquisition, including: acquiring biotoxicity data based on biological models; acquiring pollutant data based on spectral or mass spectrometry analysis; acquiring physicochemical parameter data of water bodies based on sensors; constructing an aquatic ecological health assessment index system based on the water quality data; constructing a water quality parameter prediction model using machine learning algorithms based on historical and current water quality data; inputting the current water quality data into the water quality parameter prediction model to obtain prediction results for future water quality parameters; and comprehensively assessing the current status and future trends of aquatic ecological health by combining the aquatic ecological health assessment index system and the prediction results of future water quality parameters.
Owner:CHINA NAT ENVIRONMENTAL MONITORING CENT

BIOBOX ECOSYSTEM: A MODULAR ECOSYSTEM DEMONSTRATION TOOL WITH AUTOMATIC MEDIA CONDITION MONITORING AND WATER DISTRIBUTION

PendingIDS00202607813AAquatic ecosystemData display
This invention is a demonstration device that combines a multi-level modular frame, a terrestrial ecosystem module, an aquatic ecosystem module, a reservoir, a control panel, an electronic controller, a media humidity sensor, a temperature sensor, a display, a water pump, and a water channel. All three modules are individual containers located at different levels. The pump is connected to the reservoir and supplies water to the terrestrial ecosystem module through channels that are at least partially located in the visible portion of the frame. The controller periodically reads the sensors, displays the data and system status, activates the pump when the humidity is below a lower threshold, maintains the pump state when the value is between the two thresholds, and turns the pump off when the humidity reaches an upper threshold. This arrangement allows the relationship between media conditions, sensor data, controller decisions, and water distribution to be observed in a single demonstration device that can be produced as a learning kit.
Owner:AHMAD SYAIFUL ANWAR S PD +3