140 results about "Aquatic ecosystem" patented technology

The embodiment of the invention provides a method and system for predicting the influence of port shipping on a water ecosystem, and relates to the technical field of environment prediction.The method comprises the steps that firstly, ecological environment current situation investigation and port shipping investigation are conducted on a research area, and basic data and port data of ecological environment simulation are obtained; secondly, basic data and port data of ecological environment simulation are input into the constructed hydrodynamic force-sediment-water environment model to obtain simulated environment factors, the constructed habitat model is input according to the simulated environment factors, the habitat suitability change condition is calculated, and the habitat suitability change condition is calculated; and finally, evaluating the influence of port shipping development on the water ecosystem according to the habitat suitability change condition. By integrating the ecological environment status and detailed data of port shipping activities and combining the habitat model, changes of port shipping development on hydrological characteristics, sediment transportation and water quality conditions are accurately predicted, and then the influence on an aquatic ecosystem is evaluated.

The invention discloses a sustainable luring ecological floating island system which is characterized in that fish schools in an open type water area are induced to enter a water area where an ecological floating island is located through planned enhancement releasing feeding and going out, and the fish schools in the water area where the ecological floating island is located are captured through a fishing device and put into a besieging space. The method can ensure that the species and number of aquatic organisms in an ecological floating island ecological system are kept relatively stable within a certain time, conforms to the development concept of sustainable fishery, can enable fishing and fishing pleasure and ecological environment protection to cooperatively develop, can ensure that the fishing and fishing pleasure can be continuously and healthily carried out for a long time, and has a wide application prospect. Therefore, a sustainable and stable fishing place is provided for fishing enthusiasts through a sustainable inducing and breeding combined mode, and meanwhile protection and recovery of a water area ecological system are considered; the invention further discloses a sustainable fishing method of the sustainable luring ecological floating island system, and by means of a sustainable luring combination mode of the ecological floating island system, catching and fishing activities can be continuously carried out.

The invention discloses a gallery type flood discharge supersaturated gas quick release device which comprises concrete triangular cones (4), a central energy dissipation area is defined by a concrete retaining wall (1) with water passing holes (3), the concrete triangular cones (4) are distributed in the central energy dissipation area, and gaps are filled with pentagonal energy dissipation bodies (2); a gallery area is arranged on one side of the concrete retaining wall (1), gallery water distribution holes (7) are formed in the concrete retaining wall (1) at the junction of the two areas, the gallery area is divided into a plurality of water channels, and concave-convex concrete partition plates (5) are installed on the wall surfaces of the two sides of each water channel in a staggered mode. Harm of flood discharge energy release is relieved through the rough surface concrete triangular prism and the pentagonal prism energy dissipation body, meanwhile, a gallery type water distribution structure is formed through concrete partition plates and gallery division, the supersaturated gas medium contact surface is increased through the rough surface concrete partition plates which are arranged in a concave-convex mode, and therefore the flood discharge effect is improved. The supersaturated gas in the water body forms a gas nucleus on the rough surface body and gathers into small bubbles, the small bubbles continuously gather to form large bubbles, and then the large bubbles float upwards to the water surface to escape under the action of buoyancy, so that the precipitation and release process of the supersaturated gas in the water body is accelerated, and the harm of the supersaturated gas to an aquatic ecosystem is avoided or slowed down.

The invention relates to the technical field of aquaculture, in particular to an aquaculture water environment repairing agent and a preparation method thereof, and the repairing agent is composed of a modified biochar composite material, chlorella microspheres, a cross-linking agent and a microbial compound inoculant. The modified biochar composite material is prepared through the steps of mixing attapulgite and biomass raw materials, performing acid activation, performing pyrolysis and the like, and tannic acid is used for further modification so as to enhance the adsorption capacity; the chlorella microspheres are prepared from sodium alginate and a CaCl2 solution, and have good suspension property and stability; the microbial complex microbial inoculant contains various beneficial bacteria, and can decompose organic matters and reduce the content of ammonia nitrogen and nitrite; the components of the repairing agent are combined through the cross-linking agent to form particles, so that the repairing agent is convenient to put and recycle. The repairing agent disclosed by the invention has efficient pollutant removal capacity, and can be used for remarkably improving the water quality of aquatic water, improving the transparency of the water, increasing dissolved oxygen and promoting the health and stability of an aquatic ecosystem.

The invention relates to the technical field of water ecology restoration, in particular to a water ecology protection and restoration method based on an ecological niche complementation technology. The method comprises the following steps: carrying out image acquisition on a target water area by utilizing an ecological remote sensing technology to obtain a target water area image; performing water body DNA detection on the target water area by using a sensor to obtain water ecological structure data; performing water ecological system analysis on the target water area image according to the water ecological structure data to generate water ecological system feature data; performing water area subdivision on the target water area image based on the water ecosystem feature data to generate a microhabitat; performing regional ecological niche correlation analysis on the microhabitat to generate microhabitat correlation data; and performing ecological compatibility analysis on the water ecosystem characteristic data through the microhabitat associated data to generate ecological compatibility data. According to the invention, high-efficiency and side-effect-free water ecological restoration is realized.

The invention discloses an ecological dynamic simulation method for emergency disposal of pollution events, which comprises the following steps of: constructing a dynamic water quality model by using detection data of a selected target water area ecological system over the years, setting a pollution influence coefficient according to pollution leakage time and position, and adding a pollutant influence item into the original dynamic water quality model, the method comprises the steps of establishing a pollution influence coefficient of a target water area, correcting a pollutant influence item according to the pollution influence coefficient to obtain a dynamic water quality model after pollution diffusion, establishing a convective diffusion model of the target water area, substituting the pollutant concentration output by the convective diffusion model into the dynamic water quality model in a point-to-point mode, and continuously updating various parameters of the dynamic water quality model. And finally obtaining a dynamic change process after the target water area ecological system is polluted, and evaluating a treatment result by utilizing the dynamic change process. According to the technical scheme, the influence of pollutant diffusion can be fully utilized to correct the dynamic water quality model, the accuracy of the dynamic water quality model is enhanced, and the accuracy of a final evaluation result is improved.

The invention discloses a large-scale fish resource detection method based on multi-frequency sound waves and an AI algorithm. The method comprises the following steps: correcting an original echo signal into a signal under a standard environment characteristic in combination with the environment characteristic; extracting and normalizing frequency spectrum characteristics and time sequence distribution information of the echo signals; obtaining frequency response characteristic data of fish types and associating spatial position information of the fish types; obtaining a fish swarm proportion through three-dimensional point cloud clustering analysis; identifying a fish school abnormal behavior type and an area range, and formulating a fish school abnormal intervention strategy; predicting a time point, an area range, an abnormality type and a reason of the abnormal behavior of the fish school in a future time period; and in combination with Mahalanobis distance and fish school behavior prediction, evaluating the effect of the fish school abnormal intervention strategy, and dynamically adjusting the fish school abnormal intervention strategy. According to the invention, the precision and efficiency of fish resource detection can be improved, the requirements of dynamic monitoring and precise management of fish schools in a large-range water area are met, and the healthy and sustainable development of a water area ecological system is further promoted.

The invention discloses an aquatic ecosystem exposure device for semi-volatile organic pollutants, which comprises a light control thermal insulation cabin, an aquatic ecosystem is arranged in the light control thermal insulation cabin, the aquatic ecosystem is arranged in a glass fish tank in the light control thermal insulation cabin, and the aquatic ecosystem comprises an aquatic animal exposure area and an aquatic plant exposure area. A fish manure collecting system is arranged at the bottom of the aquatic animal exposure area, a sediment collecting system is arranged at the bottom in the light-control heat-preservation cabin body, and a water sample collecting system, a target object adding and acid-base regulating device, a gas collecting and purifying device and an air exposure system are arranged outside the light-control heat-preservation cabin body in a communicating mode. The problems that in the prior art, the exposure condition of semi-volatile organic pollutants in an aquatic ecosystem cannot be effectively simulated, multiple types of samples such as gas, water, sediments, organisms and organism excrement cannot be comprehensively collected, and experiment conditions cannot be accurately controlled are solved.

The invention provides a method for non-targeting detection of 86 hormone interferents in an aquatic ecosystem, a hormone interferent ecological risk evaluation method and a hormone interferent optimal control sorting method, and belongs to the field of detection. The method comprises the following steps: a, pretreatment of a sample in an aquatic ecosystem; and b, detecting by adopting ultra-high performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS). The invention also provides a construction method of the electronic identity information database of 86 hormone interferents, a hormone interferent ecological risk evaluation method and a hormone interferent optimal control sorting method. According to the method, the occurrence pattern, the spatio-temporal evolution law and the main driving factors of the HDCs in the cross-interface aquatic ecosystem are disclosed, health risk assessment and priority control locking based on ecological risks are carried out, and the technical blank that only environment or food detection is involved but no system ecological risk tracking exists in current literatures is filled.

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.

The invention provides a method for preparing biochar from spartina alterniflora and application of the biochar in nitrogen and phosphorus removal, and belongs to the technical field of biological materials. According to the method, the widely distributed spartina alterniflora is converted into the biochar, so that high-value utilization of invasive plants is realized, and environmental pollution is reduced. The biochar provided by the invention has excellent performance in the aspects of nitrogen and phosphorus removal, effectively improves water eutrophication, improves water quality and protects an aquatic ecosystem. The preparation method is simple, cost is reduced, and large-scale production is facilitated. And the method is environment-friendly, does not generate secondary pollution, and accords with sustainable development. The invention not only provides a new environment restoration material, but also opens up a new way for biomass resource utilization, has remarkable economic and social benefits, improves public health, improves life quality and protects biological diversity.

The invention relates to the technical field of ecological environment protection and restoration, and provides a karst area lakeside wetland vegetation pollution reduction and carbon sequestration method, and a vegetation combination comprises Acorus calamus (Acorus calamus), Nymphaea tetragona (Nymphaea tetragona (Nymphaea tetragona) and Myriophyllum sphaeroides (Myriophyllum sphaeroides). According to the vegetation combination, special environmental conditions of the karst area are fully considered, the carbon sink capacity of the lakeside wetland of the karst area can be effectively improved, water pollution is reduced, and the dual effects of pollution reduction and carbon sequestration are achieved; and the planting success rate of the aquatic plants in the karst lakeside wetland can be increased, the pollution reduction and carbon sequestration capabilities of the aquatic plants are enhanced, the restoration and stability of the ecological system of the karst lakeside wetland are promoted, and technical support is provided for the karst aquatic ecological system to cope with climate change, water pollution control and carbon sequestration and sink increase.

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.

The invention belongs to the technical field of water ecology monitoring, and particularly relates to an evaluation method based on water area ecosystem protection and restoration, and the evaluation method comprises the following steps: S1, a preparation stage: collecting, sorting, analyzing and monitoring water area water ecology environment condition data; s2, an investigation stage: selecting water ecological environment investigation indexes of the monitored water area; s3, an analysis and evaluation stage: evaluating the water environment quality and aquatic organisms; and S4, an achievement summarizing stage: summarizing the water environment quality and aquatic organism evaluation results. According to the method, the monitored water area condition can be investigated and evaluated, water ecological environment background data can be obtained, and subsequent targeted improvement of protection measures is facilitated.

This invention relates to the field of aquatic organism management technology, specifically disclosing a method and system for aquatic biological resource analysis based on big data. This invention involves planning multiple monitoring points for interconnected monitoring; performing data cleaning and standardization; calculating and statistically analyzing relatively important indicators; conducting comparative analysis of ecological health based on big data technology; and interactively displaying relatively important information and ecological health information. It enables the planning of multiple monitoring points for interconnected monitoring of aquatic organisms, calculation and statistical analysis of relatively important indicators, comparative analysis of ecological health, and interactive display of relatively important information and ecological health information. This allows for high-precision and diverse sampling, effectively and accurately acquiring basic data, improving the comprehensiveness and accuracy of resource analysis, fully reflecting the ecological health characteristics of aquatic ecosystems, and providing a foundation for accurately assessing the potential for sustainable resource utilization.

The invention relates to the technical field of data analysis, in particular to a river water ecosystem health evaluation method and system, a medium and a product, and the method comprises the steps: obtaining a plurality of criterion indexes and criterion index data corresponding to each criterion layer of a to-be-evaluated river; obtaining an index assignment value corresponding to each criterion index based on a preset index assignment neural network model and each criterion index data; obtaining a preset index weight and a preset criterion layer weight corresponding to the to-be-evaluated river, and determining a river health comprehensive score corresponding to the to-be-evaluated river based on the preset index weight corresponding to the to-be-evaluated river, the preset criterion layer weight and each index score; and determining the health condition grade of the to-be-evaluated river based on the river health comprehensive score. The method is convenient for improving the accuracy of health evaluation of the river water ecosystem.

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.

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.

The application discloses a kind of river ecosystem stability evaluation method based on the ratio of generalization species and specialization species.The present application relates to the technical field of river ecosystem stability evaluation, solve the problem of insufficient sensitivity of existing evaluation methods to the dynamic response of river system stability.The present application sets sampling points in different river sections according to the actual situation of the river, collects benthic microbial samples on gravel, sandy and sediment in the target river section, and measures the environmental indicators of each sampling point;high-throughput sequencing is performed on the benthic microbial samples, and the generalization species and specialization species are identified in combination with Levins niche breadth;the generalization species and specialization species of benthic microorganisms are identified and quantified, the threshold relationship between the ratio of generalization species and specialization species and the stability of river ecosystem is determined, an evaluation system for the stability of river ecosystem based on the ratio of generalization species and specialization species is constructed, and the stability of aquatic ecosystem is evaluated and the comprehensive management of river basin and ecosystem construction are promoted.

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.

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.

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.

The invention discloses an algae classification method based on algae photosynthetic pigment characteristic difference, which comprises the following steps: S1, obtaining photosynthetic pigment types, molecular formulas and fluorescence spectrograms of different algae, and establishing an algae photosynthetic pigment database; s2, the chemical indexes and the spectral features are fused into multi-dimensional feature vectors, and standardization processing is carried out on the multi-dimensional feature vectors; s3, dividing the data set into a training set and a test set, and training and optimizing a classification model; and S4, AI-based algae classification verification and result presentation. According to the method, the photosynthetic pigment characteristics of the algae are converted into digital indexes, so that a quantitative and efficient new method is provided for algae classification, a new way is opened up for application of machine learning in algae toxicity prediction, the prediction and evaluation ability of the algae in an aquatic ecosystem affected by toxic and harmful substances is improved, and the method is suitable for popularization and application. And a technical support is provided for environmental protection and ecological risk early warning.

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.

This invention discloses a method for constructing a "sponge" mining area in the subsidence zone of underground mining. It fully utilizes the large surface subsidence space caused by mining operations to purify, store, and utilize mine water resources, and restore the mining area's ecology. The method involves horizontally dividing the subsidence space into "purification-storage-utilization" functional zones and vertically reconstructing the soil into "isolation-conservation-nurturing" functional zones. Horizontally, the surface subsidence basin is divided into three water resource functional zones: a water purification zone, a water storage zone, and a water use zone. The water purification zone is located upstream of the gravity flow of mine water at the edge of the subsidence basin; the water storage zone is located in the center of the subsidence basin; and the water use zone is located downstream. This method not only restores mine land resources but also achieves multiple objectives, including improving the water environment, conserving water resources, restoring the aquatic ecosystem, ensuring water security, and utilizing water resources.

The utility model relates to a park landscape system based on ecological interaction type of chlorella micro-aquatic ecosystem, it is to solve the technical problem of the poor interactivity function of existing intelligent park, the park landscape system of the utility model includes pool, dot matrix light source, energy storage battery, motion power generation facility, solar panel, photosynthesis monitor, controller, the small chlorella is put in the pool, the dot matrix light source is laid in the pool bottom, and the solar panel, motion power generation facility is connected with energy storage battery respectively, and the energy storage battery is connected with the dot matrix light source, and the photosynthesis monitor is set in the pool top, and the small chlorella growth state in the pool is monitored and is sent to the controller, and the controller is also connected with the dot matrix light source, controls the light mode and the light intensity of each light point in the dot matrix light source. Participants carry out the claim to the small chlorella in the interactive pool through the interactive applet on the controller of mobile phone scanning controller, and send control command, participate in the landscape formation in the pool, can be used in the field of city park.

The invention relates to a water body dissolved oxygen control technology, in particular to a cascade reoxygenation dissolved oxygen control experiment device and method. The device comprises a deoxidation system, an oxygenation system, an oxygen stabilizing system, a water supplementing system and an experiment system, wherein the deoxidation system is used for rapidly generating enough low-saturation dissolved oxygen water; the oxygenation system is responsible for realizing continuous increasing of dissolved oxygen in the low-oxygen water body; the oxygen stabilizing system is responsible for keeping the pressure of a water body entering the oxygenation system stable and keeping the flow state of the water body entering the experiment system constant, the water supplementing system is used for automatically, continuously and stably inputting raw water into the deoxygenation system, and the experiment system introduces the water body with the constant dissolved oxygen concentration into the experiment system by simulating an aquatic ecosystem in a test environment; the influence of experimental water bodies with different dissolved oxygen contents on growth, reproduction, behaviors and the like of aquatic organisms under different exposure time is comprehensively reflected, so that the accuracy and reliability of experimental results are ensured.

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.

The invention discloses a multi-model-based water ecosystem health evaluation and prediction system, which relates to the technical field of water ecosystem health evaluation, and comprises a water quality health evaluation unit, an early warning unit, a decision support unit, a water quality monitoring unit and a prediction unit, the water quality monitoring unit is used for performing real-time water quality monitoring on a water body based on a sensor installed in the water body, acquiring water quality data, preprocessing the water quality data, extracting feature data in the water quality data and transmitting the feature data in the water quality data to the multi-model prediction unit; and the multi-model prediction unit is used for performing training and prediction based on the feature data in the water quality data and the water quality data of different water ecosystem health evaluation models to obtain a comprehensive prediction result of the water ecosystem health state. According to the method, through multi-model integration, the precision and robustness of water ecological health assessment are improved, and accurate data support is provided for real-time water quality monitoring and data processing.

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.