53 results about "River ecosystem" patented technology

The invention relates to a river ecosystem planktonic bacteria environment threshold identification method, and belongs to the field of environmental ecology and computational biology. The method comprises the following steps: collecting a plurality of environmental factors, fusing and constructing a space-time aligned watershed ecosystem data set, and preprocessing the data set; constructing a prediction model and performing training; environmental factors are collected from a target drainage basin and input into the trained prediction model, and a nonlinear mapping relation between the environmental factors and the microbial community, namely an SHAP value, is obtained through learning; constructing a GAM response curve based on the SHAP values and the environmental factors, fitting a nonlinear response trend of the GAM response curve through a spline function, and identifying an environmental threshold corresponding to each environmental factor; through a Bootstrap resampling method, multiple times of environment threshold recognition are carried out on each environment factor, and a confidence interval is estimated based on environment thresholds obtained through multiple times of recognition, so that the stability and reliability of environment threshold recognition are improved.

The invention discloses a method for evaluating the stability of a river ecosystem based on the proportion of generalization species and specialized species. The invention relates to the technical field of river ecosystem stability evaluation, and solves the problem that an existing evaluation method is insufficient in sensitivity to dynamic response of river system stability. The method comprises the following steps: respectively setting sampling points at different river reaches according to actual conditions of a river, collecting benthic microorganism samples on gravels, sand and bottom mud of a target river reach, and measuring environmental indexes of each sampling point; performing high-throughput sequencing on benthic microorganism samples, and identifying generalization species and specialization species by combining the Levins ecological niche width; the method comprises the following steps: identifying and quantifying generalization species and specialized species of benthic microorganisms, determining a threshold relationship between the proportion of the generalization species and the specialized species and the river ecosystem stability, and constructing a river ecosystem stability evaluation system based on the proportion of the generalization species and the specialized species. The stability evaluation of the water ecosystem is realized; and the basin comprehensive management and the ecosystem construction are promoted.

The invention discloses a river health evaluation method suitable for northern water-deficient cities, and relates to the technical field of environmental science and engineering.The system comprises the following steps that the pH value, the dissolved oxygen concentration and the total electrolyte amount are monitored through a pH sensor, a dissolved oxygen sensor and a conductivity sensor, the river water surface, the river channel and the surrounding environment are monitored through a GIS, and the river health evaluation result is obtained. Comprising a land utilization type, a vegetation coverage rate and a river bank erosion condition, collecting environmental problems uploaded by the public through a mobile phone APP, and investigating the satisfaction degree of the public to the environment; a river health evaluation system is constructed, the trend of river health is predicted, and potential factors affecting river health are identified; and according to a prediction result, configuring a decision support system to assist in making a management strategy, and regularly reviewing and evaluating system effectiveness. The river health evaluation method and management system are continuously optimized by dynamically adjusting river management and protection work according to a dynamic adjustment result, and the river ecological system of northern water-deficient cities is effectively protected for a long time.

The present invention discloses a double-layer overpass fishway structure, belonging to the field of fishway design in water conservancy projects. The double-layer overpass design enables an upper overflow and a lower submerged flow. The water flow structure within the pool chamber is diverse and can adapt to different water depths, creating favorable hydraulic conditions for fish with different preferences. The double-layer overpass fishway comprises: a trumpet-shaped inlet section, a hump-shaped weir transition section, a double-layer overpass pool section (including a lower disc-shaped channel section and an upper overflow section), and a resting pool section. The hump weir section divides the pool chamber into an upper overflow area and a lower submerged outflow area. The formation of the upper overflow area draws jumping fish into the upper overflow weir section, while the lower submerged flow area is used to attract bottom-dwelling fish and allow them to smoothly swim upstream through the disc-shaped channel section. The arrangement of the resting pool section creates a low-flow zone to allow fish to recover their strength, thereby allowing them to successfully complete their upstream migration and ensure the stability of the river ecosystem.

The invention relates to a small river habitat restoration effect evaluation method, and aims at solving the problems of habitat damage, habitat fragmentation and the like caused by hydroelectric development to formulate restoration targets of restoring river connectivity, guaranteeing ecological base flow and constructing a stable river ecosystem. The method comprises the following steps: firstly, monitoring a river, then monitoring fish resources and an ecological environment, carrying out special investigation on ecological restoration measures, and finally, constructing an evaluation index system from the dimensions of river connectivity, habitat quality, biodiversity, ecological bearing capacity and the like based on monitoring data. Scientific quantitative evaluation is realized, support is provided for engineering optimization, and river ecological protection and restoration technology development can be promoted.

The invention discloses a degradation dominant characteristic factor identification method for a river ecosystem, and particularly relates to the technical field of ecological environment monitoring and system modeling. A space-time tensor model of multi-source ecological observation data is constructed, multi-dimensional dynamic principal component analysis and a spectral clustering algorithm are fused, a high-contribution-degree feature sequence is extracted, and a multi-scale ecological feature association map is constructed; on the basis, interaction weights among ecological variables are defined, an ecological degradation path network is constructed, and an intermediary variable and a response variable are identified. The explanatory force of each feature is further evaluated by adopting a Shapley value method, a dominant feature importance degree matrix is formed, and a driving response model is established in combination with historical intervention measure data, so that scene optimization of a repair strategy is realized.

The present invention discloses a method for assessing the impact of human activities. The present invention relates to the technical field of the intersection of environmental science and geographic information systems, and solves the problem that assessment methods that ignore hydrological processes cannot accurately reflect the actual impact of human activities on river ecosystems. The method includes: acquiring and processing satellite remote sensing images of the corresponding river basin, extracting land use information grids of each part; acquiring a digital elevation model of the study area, determining the water flow path through hydrological analysis, and calculating the actual path length between each grid and the monitoring point along the water flow direction; assigning points to different land use types, and calculating the degree of influence of each land use grid on the monitoring point based on the hydrological distance inverse distance weighted algorithm, and obtaining a human activity impact index. The present invention can more accurately assess the impact of human activities on the basin ecosystem by combining land use type assignment and the hydrological inverse distance weighted algorithm.

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 relates to a method for deploying fish-driving sound sources to maintain fish migration pathways within reservoirs. First, hydrodynamic simulations are used to determine the interruption areas and required channel widths of the migration pathways. Then, the required sound intensity of the fish-driving sound sources is determined based on the specific effects of sound on fish. Finally, the number and location of the sound sources are determined by combining acoustic methods and the physiological needs of fish. This method can maintain fish migration pathways within reservoirs and promote successful fish migration, which is of great significance to the utilization of reservoir water resources and the protection of river ecosystems.

The invention relates to construction and application of an urban river ecological system, in particular to a construction method of revetment areas on both banks of an urban river and a construction and recovery method of constructed wetland vegetation, and provides a widened buffer area of an artificial island inner cavity and a widened inner cavity river which is constructed in the island in the water flow direction and can penetrate through the two ends of the island. The riverway is a winding riverway, impurity filter screens are arranged at the two ends of the widened buffer area, a multifunctional riverway environment protection ecological system can be built, a multifunctional system integrating ecological protection, pollutant treatment, leisure entertainment and static ornamental value can be completed, and the functionality and attractiveness of the two sides of the riverway are improved.

The present invention discloses a method, device, and electronic device for adjusting submerged vegetation morphology. The method comprises: establishing a first mapping relationship between morphological parameters of submerged vegetation and hydrological and ecological benefit parameters; obtaining target hydrological and ecological benefit parameters for the river section to be optimized, and inputting the target hydrological and ecological benefit parameters into the first mapping relationship to obtain target morphological parameters corresponding to the submerged vegetation; and generating a submerged vegetation morphological adjustment strategy for the river section to be optimized based on the target morphological parameters. The technical solution provided by the present invention enables manual intervention in the river section to achieve the desired effects on river flow, sediment movement, material transport, and the living environment of aquatic organisms, thereby further improving the health of the river ecosystem.

This invention discloses a method for monitoring long-term changes in primary productivity of rivers at a continental scale, belonging to the technical field of river ecosystem monitoring. The method involves determining the effective duration of daytime each day, forming a daily-scale meteorological and hydrological element time series, and selecting high-quality primary productivity data. The daily-scale meteorological and hydrological element time series and watershed attributes are fused to form daily input features, with high-quality primary productivity data used as output variables. A continental-scale river primary productivity simulation model is constructed and optimized. The trained simulation model outputs simulated river primary productivity values, generating daily-scale primary productivity time series data. The mean and annual mean of primary productivity are calculated, and the correlation between the annual time series and the annual mean is analyzed. This invention uses daily-scale meteorological and hydrological elements and constant watershed attributes as inputs, combined with a long short-term memory network deep learning algorithm, thus overcoming the strong dependence of traditional methods on minute- to hourly high-frequency dissolved oxygen monitoring data.

The utility model discloses a self-driven river garbage blocking and oil stain adsorption device, which relates to the field of river pollution treatment and comprises a paddle, a gear disc, a sponge fixing grid ring, a floating disc, a nut and a fixing rod. The gear disc, the sponge fixing grid ring and the floating disc are sequentially and fixedly arranged on the rod wall of the fixing rod from bottom to top, the position, located in the sponge fixing grid ring, of the rod wall of the fixing rod is provided with sponge capable of adsorbing oil dirt, and the upper end of the fixing rod is provided with threads matched with the nut. The number of the fixing rods is multiple, and the same linking lock chain is arranged at the upper ends of the multiple fixing rods. The floating garbage in the river can be effectively intercepted and collected, industrial oil stains are adsorbed, the negative influence of the industrial oil stains on a river ecosystem is reduced, the safety of water resources is protected, and green sustainable development is promoted.

The present application relates to the technical field of urban water ecological system regulation and management, and particularly relates to a method and system for reconstructing an urban river ecological system based on tail water of a sewage treatment plant. The method comprises the following steps: introducing tail water of the sewage treatment plant into a parallel or surrounding artificial wetland deep purification corridor for purification, collecting the purified tail water quality, mixing the purified tail water quality at a water distribution hub, and implementing pulse ecological water replenishment to the downstream of the river through a pre-set intelligent dam; collecting initial topographic data of the smooth hard river, determining habitat size parameters in combination with habitat conditions required for aquatic organisms to survive, and reconstructing the river topography to form a sequence of habitat units. The present application reconstructs a tail water type river ecological system with rich biodiversity, self-purification capacity and self-maintenance capacity to improve the controllability and long-term stability of urban ecological engineering.

The invention discloses an intermittent river reach ecological health evaluation method based on river ecosystem integrity. The invention relates to the technical field of river ecosystem integrity evaluation, and aims to solve the problem that the existing river ecosystem integrity evaluation method cannot accurately indicate the intermittent river reach health condition at present. According to the method, an evaluation index system for constructing the integrity of the intermittent river reach ecological system from three aspects of hydrology, habitat and biology is established, the three systems are endowed with weights by applying an analytic hierarchy process, and the comprehensive score of ecological health evaluation of the perennial flow river reach and the intermittent river reach is obtained through weighted averaging. And comprehensively evaluating the health condition of the intermittent river reach ecosystem. According to the method, the defect that the current watershed water ecosystem health evaluation method cannot be applied to the intermittent river reach is overcome, and the ecological health condition of the intermittent river reach can be reflected.

The invention discloses a cross-basin water transfer method based on incoming water rich, flat and dry and ecological flow constraints. The method comprises the steps that 1, water conservancy project data of a water source area and a water receiving area are obtained, and division is conducted on a high-water year, a flat-water year and a dry-water year; 2, determining different water transfer requirements corresponding to a high water year, a flat water year and a low water year of the water source area and the water receiving area; 3, further subdividing into a flood season and a non-flood season according to runoff characteristics in the year; 4, an ecological flow threshold value needing to be guaranteed after water transfer of the downstream river channel of the water source area is determined; and 5, according to the incoming water situations of the water source area and the water receiving area, constructing a cross-basin water transfer model and solving to obtain an optimal water transfer process. The river ecological system of the water source area is protected to the maximum extent while water supply safety of the water receiving area is guaranteed, and sustainable utilization of water resources is achieved.

The invention discloses an ecological scheduling opportunity determination method, system and device and a storage medium, and the method comprises the steps: obtaining ecological scheduling basic data, carrying out the data processing of the ecological scheduling basic data, and obtaining first ecological scheduling basic data; performing modal decomposition on the first ecological scheduling basic data to obtain a first intrinsic modal time sequence and a second intrinsic modal time sequence; constructing a deep learning model according to the first intrinsic mode time sequence, and training the deep learning model to obtain a first deep learning model; inputting the second intrinsic mode time sequence into a first deep learning model to obtain a water temperature prediction result at each moment, and constructing a water temperature prediction model according to the water temperature prediction result at each moment; and calling the water temperature prediction model to predict the water temperature of the target river reach to obtain an ecological scheduling opportunity, thereby maintaining the health and stability of a river ecosystem.

This invention discloses a method for assessing the impact of reservoir construction on river deoxygenation based on satellite remote sensing. The method includes the following steps: constructing a synchronous observation database of river dissolved oxygen and satellite remote sensing reflectance; training a random forest model and an extreme gradient boosting tree model based on input and output data indicators, and fusing them to construct an integrated inversion model for dissolved oxygen concentration; obtaining publicly available river widths and extracting long-term remote sensing reflectance spectral data located along the river's median line; obtaining engineering characteristic parameters of the target reservoir, driving the integrated inversion model for dissolved oxygen concentration, and reconstructing a long-term dataset of river dissolved oxygen concentration; and calculating the trend of dissolved oxygen concentration changes in two time periods, using the construction time of the target reservoir as a dividing point. This invention uses satellite remote sensing to assess the intensity of the impact of reservoir construction on river deoxygenation processes, providing a reliable and scalable assessment method for quantifying the disturbance and alteration of river ecosystems by human activities.

The invention discloses an intermittent river ecosystem degradation diagnosis and regulation method and system and a storage medium. The invention relates to the technical field of environment monitoring and ecological evaluation, and aims to solve the problem that accurate diagnosis, pressure tracing and scene simulation of an intermittent river ecosystem degradation mechanism are difficult to realize in the prior art. According to the method, water body-sediment double sample eDNA collection is adapted to dry and wet period monitoring requirements, multi-source data is integrated to extract intermittent river exclusive biological index characteristics, and natural hydrological fluctuation and man-made interference are distinguished based on a hierarchical Bayesian causal network model integrated with exclusive ecological knowledge; and finally, outputting degradation dominant factors and ecological regulation and control suggestions of the intermittent river. According to the method, the bottlenecks of dry period monitoring blank, attribution fuzziness and the like of traditional monitoring in an intermittent river scene are broken through, the accuracy and pertinence of diagnosis are improved, and scientific support is provided for intermittent river ecological protection, ecological flow verification and restoration scheme formulation.

This invention belongs to the field of river management technology, and in particular to a device and method for ecological restoration and treatment of river sewage. It includes a river body and an interception component installed inside the river body. The interception component includes an interception filter screen with a water outlet channel fixed on one side. A bidirectional reciprocating screw is rotatably connected to the surface of the river body, and a drive motor is screwed to the surface of the river body. Pushing plates are symmetrically threaded on both sides of the surface of the bidirectional reciprocating screw, and a mud-pushing plate is fixed to the bottom of the pushing plates. This device, equipped with the interception component, can clean different types of garbage and impurities (surface garbage and bottom silt) in river sewage, completing multi-level restoration and treatment of river sewage. It solves river pollution problems from multiple levels, comprehensively improves the river's ecological environment, helps restore the river's self-purification capacity, and promotes the balance and stability of the river ecosystem.

The application discloses a method for analyzing the influence of a gate dam on a river food web based on fatty acids and ecological network analysis. The method comprises the following steps: obtaining the nutrient structure of the river food web upstream and downstream of the gate dam and the measured results of fatty acids of various species through field sampling; determining the food resources and consumers of the food web through a classification library and a relationship library of nutritional groups; determining the number of nodes and the number of links between nodes in the ecological network diagram upstream and downstream of the gate dam; calculating the node size, the nutrient transmission efficiency and the interspecific energy flux in the ecological network diagram, determining the link width between nodes in the ecological network diagram, and drawing the ecological network diagram; calculating the total area of various types of nodes, the number of producer nodes and the number of consumer nodes of each nutritional group in the ecological network diagram upstream and downstream of the gate dam, and analyzing the influence of the gate dam on the key species and nutritional groups in the river food web and the influence of the gate dam on the stability and vulnerability of the river ecosystem food web.

The utility model provides a seasonal cutoff river ecosystem which comprises a water storage ditch and a plurality of wetland bubbles, the water storage ditch is arranged at the bottom of a river channel and bends and extends along the trend of the river channel, the plurality of wetland bubbles are arranged along the trend of the water storage ditch at intervals, the water storage ditch is communicated with the wetland bubbles, the wetland bubbles are arranged to be concave in the water storage ditch, and the water storage ditch is communicated with the wetland bubbles. A first pebble bed and a first aquatic organism are arranged in the water storage ditch, and a second pebble bed and a second aquatic organism are arranged in the wetland bubble. According to the seasonal cutoff river ecological system, the water storage ditches and the wetland bubbles are combined so that the water level can be stored in the low water cutoff period, river cutoff is avoided on the premise that the flood discharge function of a river is not affected, the diversity of the ecological system is kept by arranging the first aquatic creatures and the second aquatic creatures, and the ecological system is more diversified. The water storage ditches can form various complex water conservancy conditions such as rapid flow and slow flow, the wetland bubbles have the impurity precipitation function, the water quality of the river channel is improved, and meanwhile the ecological diversity of the river channel is enriched.

This invention discloses a method for correcting the flow rate of a wide-load turbine in ecological flow power generation, belonging to the technical field of wide-load turbines. The method includes: collecting historical operating data of the wide-load turbine and preprocessing it to construct a mathematical model of the flow rate; analyzing real-time operating data of the wide-load turbine, calculating the flow rate, and determining the flow rate result; analyzing the flow rate result, and correcting the flow rate based on the analysis to meet ecological flow requirements. This invention solves the problem that existing methods cannot effectively correct the flow rate of wide-load turbines according to the needs of the river ecosystem, leading to unmet ecological flow requirements and reduced power generation efficiency. This invention can effectively correct the flow rate of wide-load turbines according to the needs of the river ecosystem, improving the performance of wide-load turbines, better meeting ecological flow requirements, and optimizing power generation efficiency.

The invention discloses a non-connected river ecological calculation method, and belongs to the field of river ecological calculation, and the method comprises the steps: simulating river environments in different connected states through constructing a multifunctional experiment water tank system, and collecting hydrodynamic force, water quality and biological multi-dimensional parameters; establishing a hydrodynamic force-water quality-water ecology coupling model to realize synchronous calculation of physical, chemical and biological processes; a non-connectivity index is innovatively proposed, and river non-connectivity features are quantified from four dimensions of longitudinal, transverse, vertical and time. According to the method, the defects of a traditional method in the aspects of dynamic water environment simulation, multi-dimensional non-connectivity representation and multi-process coupling are overcome, the transportation-retention process of the phosphorus element under the conditions of manual intervention and rainfall runoff can be accurately analyzed, and a reliable technical means is provided for ecological influence assessment of channel improvement engineering and river ecosystem management.

The invention discloses a river ecosystem function determination method, and relates to the technical field of demand analysis, the method comprises the steps of designing an integrated monitoring device comprising a camera, a water quality monitor, a data transmitter and other modules, the camera is used for shooting underwater images, the water quality monitor is used for monitoring water quality parameters in real time, and the data transmitter is used for transmitting data; the data transmitter is responsible for uploading the collected data to a local server in real time; by combining key indexes such as species diversity indexes, water quality parameters and ecological productivity, the data analysis system can comprehensively evaluate the health level of river ecology, by combining water quality and species data, the ecological health evaluation model can provide an accurate ecological evaluation value E, and whether protection measures need to be taken or not is judged according to a set threshold value; the quantitative evaluation method can effectively support ecological protection and management decisions, and avoid excessive intervention or missing of repair opportunities.

The invention provides a river ecosystem restoration system and an aquatic plant modular cultivation device. The river ecosystem restoration system and the aquatic plant modular cultivation device structurally comprise parallel blocks, a bearing base, limiting frames, planting grooves and separators. Three different types of aquatic plants can be effectively separated one by one and cultivated at the same time by the three groups of separators additionally arranged in the bearing base, and then the three groups of loading boxes can be separated by the spacing auxiliary pieces, so that mutual winding generated during growth of rhizomes of the aquatic plants is avoided; the controller of the regulator can be combined with the sliding rail, the balance sleeve and the sliding rod to push the restraining plate to move at one end of the loading box, so that when the number of aquatic plants is reduced, the area of the cavity can be reduced through the restraining plate; the situation that the cultivation intensity of the aquatic plants is reduced due to excessive dispersion of nutrients generated in excessive blank areas is avoided.

The invention provides a health evaluation method and system for a mountain river ecosystem based on a food web, and relates to the technical field of ecological environment science and aquatic ecology, and the method comprises the steps: collecting data of the mountain river ecosystem; constructing an Ecopath model database according to the mountain river ecosystem data; according to the Ecopath model database, an Ecopath model is constructed; and establishing an ecological system evaluation method based on an Ecopath model, and performing health evaluation. The method comprehensively considers the interaction, physical and chemical environmental factors and unique hydrological characteristics of the multi-trophic-level biocenosis of the mountainous river, and solves the problem that the traditional evaluation method neglects the structure and function of the food web and is difficult to accurately quantify the ecological health condition. And a new technical means is provided for protecting and managing a river ecosystem in a mountainous area under the interference of climate change and human activities.

The present invention discloses a method for evaluating the soundness of a river ecosystem based on the specific response of a microbial community. This method includes the steps of: a: setting sampling points in rural, suburban, and urban central areas along the river respectively; b: measuring 12 indicators including pH, water temperature (WT), dissolved oxygen (DO), chemical oxygen demand (COD), total nitrogen (TN), total organic carbon, nitrate nitrogen, ammonium nitrogen, nitrite nitrogen, total phosphorus, sulfide, and fluoride, and calculating the water quality index WQI; c: extracting the DNA of aquatic microorganisms and performing bacterial 16s rRNA amplicon sequencing; d: obtaining a genus-level information table and screening effective genus information; e: performing sensitivity classification of microorganisms based on an ecological niche model; f: analyzing the reliability of the results. This method can quickly, accurately, and objectively reflect the health status of the urban river ecosystem.

The utility model relates to the technical field of hydraulic engineering and riverway treatment, and discloses an urban riverway dam reinforcing structure which comprises a slope body, a plurality of ecological slope protection modules are arranged on the upper surface of the slope body, and each ecological slope protection module comprises a supporting frame, a soil maintaining layer and a vegetation planting soil layer. According to the urban riverway dam reinforcing structure, by introducing the ecological slope protection module, dam reinforcing is achieved, restoration of a riverway ecological system is promoted, the vegetation planting soil layer provides a habitat and a food source for aquatic organisms, meanwhile, the root system of vegetation is tightly combined with the soil maintaining layer, water and soil loss is effectively prevented, and the ecological slope protection module is arranged on the ecological slope protection module. The stability of the dam is improved, the anti-scouring and anti-corrosion capacity of the dam is remarkably improved by combining the anti-scouring plate made of a high-strength polypropylene material, the humidity condition of vegetation can be monitored in real time through an intelligent irrigation system of a humidity sensor, an electromagnetic valve and a control host, precise irrigation can be conducted, water resources are saved, and the manual maintenance cost is further reduced.

The present invention provides a method for determining the threshold of the functional traits of river benthic animal communities under nutrient stress, which relates to the ecological technology field of benthic animal communities. The method for determining the threshold of the functional traits of the river benthic animal communities under nutrient stress not only overcomes the limitations of traditional species taxonomy methods, but also provides a more comprehensive and in-depth way to understand the relationship between benthic animal communities and environmental factors, providing a strong scientific basis for the health management and protection of river ecosystems; by using a random forest model, multiple nutrient indicators and environmental factors can be considered simultaneously, and the main driving factors can be identified through feature importance scoring to clarify the action intensity of different factors; by calculating the functional diversity index and constructing a site × trait abundance matrix, the specific functions of benthic animals in the ecosystem can be comprehensively reflected, exceeding the traditional species richness and diversity indicators.