100 results about "River ecosystem" patented technology

The invention discloses a water conservancy and hydropower project ecological scheduling optimization method, and relates to the technical field of water conservancy and hydropower ecological scheduling, and the method comprises the steps: carrying out the fine ecological region division of a river channel, and dividing the river channel into a plurality of regions with definite ecological functions through combining a plurality of factors. By monitoring the ecological water demand of different ecological regions in the river channel in real time, the actual demand condition of each ecological region is accurately mastered, so that the ecological scheduling scheme is individually formulated according to the characteristics of different ecological regions, the scheduling accuracy is improved, the ecological model comprehensively considers multiple factors such as hydrology, water quality, ecology and meteorology, and the ecological scheduling efficiency is improved. According to the method, the change trend of the ecological water demand of different ecological areas can be predicted, a suitable living environment is provided for various aquatic organisms by accurately meeting the ecological water demand of different ecological areas, protection of rare and endangered species is facilitated, stable development of biocenosis is promoted, and the biodiversity level of a whole river ecosystem is improved.

The disclosure relates generally to methods and systems for predicting water quality of a river having a varying river ecosystem. Due to multiple and diverse factors, understanding and estimating the water quality of the river stream (river itself) is extremely and technically challenging. The present disclosure discloses a development of a river digital twin model utilizing a multi-modeling approach to comprehensively model the river and its varying ecosystems. The agents encompass entities that directly or indirectly introduce effluents or withdraw water from the river. Agents and their interactions are defined using a combination of behavior rules, correlations, and physics principles, creating the digital twin model that closely mimics the real river system. Physics-based equations are also employed in the present disclosure to capture the dynamics of the river, while relationships between different agents are established.

The invention discloses a river ecological health assessment method based on omnibearing indexes, and the key points of the technical scheme are as follows: through constructing a multi-dimensional assessment matrix containing a plurality of key indexes, the scheme can comprehensively cover a plurality of aspects of a river ecological system, such as water quality conditions, biocenosis structures, species diversity and the like, so that the comprehensiveness of assessment is ensured; the weight of each dimension is dynamically calculated and adjusted by using the grid search optimization and gradient descent algorithm, the subjectivity and one-sidedness of a traditional method are avoided, the scientificity of evaluation is improved, the accuracy and reliability of an evaluation result are ensured through verification of an independent data set, a powerful scientific support is provided for river ecological protection and sustainable development, and the method has a wide application prospect. According to the method, various data of the river ecosystem can be comprehensively and systematically collected and analyzed by constructing the matrix containing a plurality of key indexes, a solid data basis is provided for subsequent evaluation, and the accuracy of data used in the evaluation process is ensured through the data preprocessing step.

The invention provides a method for determining a threshold value of functional traits of a river benthonic animal community to nutrition stress, relates to the technical field of benthonic animal community ecology, and comprises the method for determining the threshold value of the functional traits of the river benthonic animal community to the nutrition stress. A method for comprehensively and deeply understanding the relationship between the benthonic animal community and the environmental factors is also provided, and a powerful scientific basis is provided for health management and protection of a river ecosystem; a random forest model is adopted, a plurality of nutrition indexes and environmental factors can be considered at the same time, main driving factors are identified through feature importance scores, and action intensities of different factors are determined; by calculating functional diversity indexes and constructing a site * character abundance matrix, specific functions of the benthonic animals in an ecological system are comprehensively reflected, and traditional species richness and diversity indexes are exceeded.

The invention belongs to but is not limited to the technical field of ecological environmental protection, and discloses a river fish habitat connectivity assessment method, which comprises the following steps: collecting historical site data of target river fish and bioclimatic data influencing river fish distribution to establish a variable set; the method comprises the following steps: screening variables without collinearity by utilizing VIF, constructing a species distribution model of fishes in a target river by utilizing a machine learning algorithm, and screening environmental factors with relatively high contribution degree of the model; according to a machine learning sub-model selected by AUC and TSS, establishing a set model and simulating HS of target river fish habitat suitability distribution; dam information of the target evaluation drainage basin is collected, and a tree connectivity index (DCI) is calculated; stacking the HS and the DCI, calculating a habitat connectivity index (FRCI) of the fish in the target river, and evaluating the habitat connectivity. According to the method, the habitat suitability, the structure connectivity and the function connectivity are considered, the credibility and the preciseness of evaluation of the habitat connectivity are improved, and a scientific basis and a practical tool are provided for protection and management of a river ecosystem.

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 discloses a river water and sediment coordinated regulation and control method, device and equipment, a medium and a product, and relates to the technical field of hydrological function remediation, and the method comprises the following steps: permutation and combination are carried out on all sub-targets to obtain a plurality of regulation and control schemes corresponding to river water and sediment to be regulated and controlled; constructing a river water and sediment regulation and control multi-target collaborative model corresponding to each regulation and control scheme; the river water and sediment regulation and control multi-target collaborative model corresponding to the regulation and control scheme comprises a target function corresponding to the regulation and control scheme and a constraint condition corresponding to the regulation and control scheme; the river water and sediment regulation and control multi-target coordination model corresponding to each regulation and control scheme is solved to obtain the coupling coordination degree of each regulation and control scheme; the optimal regulation and control scheme is determined according to the coupling coordination degree of all the regulation and control schemes, the water and sediment of the river to be regulated and controlled are regulated and controlled according to the optimal regulation and control scheme, complex water and sediment dynamic changes can be dealt with, and benign maintenance of a river ecosystem and sustainable development of social economy are achieved.

The invention discloses a drainage basin non-point source pollution control and river water environment improvement system and an operation process thereof. The system comprises a main river channel, a closed area internal purification system and an intelligent control system. The automatic monitoring station in the main river channel monitors the water quality of the monitoring section and transmits data to the intelligent control system, and the intelligent control system is connected with the purification system in the closed area and controls the opening of the purification system in the area according to a monitoring result. The system can purify agricultural non-point source pollution and industrial sewage and domestic sewage point source pollution in the closed area by detecting the water quality of the river channel and regulating and controlling the water quantity of the river channel, promotes healthy development of a river ecosystem, scientifically, accurately and efficiently optimizes a purification system in the closed area by utilizing an intelligent control system, and improves the purification efficiency of the closed area. Therefore, the water quality monitoring section stably reaches the standard. The system has the advantages of convenient operation, stable performance, long-term efficient operation management and the like.

The invention provides a river ecological corridor boundary determination method and device and a storage medium, and the method comprises the steps: obtaining the types, densities and biomass of inland organisms and water organisms which often inhabit in a river management range in a research region, and determining the respective key indicator species of the inland organisms and the water organisms in the research region; determining requirements of key indicator species; obtaining a relation curve of river gallery boundary-key indicator species diversity; constructing a region-typical river reach two-dimensional habitat model, and obtaining spatial distribution and migration path information of each key indication species in a river ecosystem; preliminarily determining a boundary threshold value of the ecological corridor of the river; determining a water area corridor boundary of the river ecological corridor; determining a land area corridor boundary of the river ecological corridor; and determining a river ecological corridor boundary based on the water area corridor boundary and the land area corridor boundary of the river ecological corridor. By adopting the determination method provided by the invention, the river ecological corridor boundary can be determined more reasonably and quickly.

The invention provides a method for evaluating river pollution and application thereof, and belongs to the technical field of river pollution treatment. The invention discloses the relationship between the microbial community composition change and the environmental factor in the river water body of the drainage basin. According to the invention, bacterial communities and virus communities in a river are significantly related to environmental factors (r is greater than 0.8, and p is less than 0.05), which indicates that the environmental factors are the main reason influencing the difference and abundance change of the bacterial communities and virus communities in the river, and environmental pollution control measures should be taken to establish a perfect pollution control system. According to the method, a scientific basis is provided for the management of a river ecosystem and the protection of biological diversity, the influence of the environmental factors on the point location can be known by detecting the microbial community structure of the river in the river, a reference is provided for reasonably utilizing scarce fresh water resources, and a safety guarantee is provided for preventing and controlling the water environment pollution risk and ensuring the water quality safety.

The invention relates to the technical field of river ecological environment data monitoring, in particular to a river ecological environment data monitoring method and system based on big data. Comprising the following steps: S1, collecting historical information data of a river, then performing unit region division on the river, and classifying the historical information data according to the divided unit regions; s2, performing quantitative index analysis on the historical information data according to the structural data and functional representation of the river; potential laws and trends in river ecological environment data can be mined through a big data analysis technology, prospective guidance is provided for ecological restoration and management, the quality of a river ecological system can be comprehensively and accurately evaluated by comprehensively considering multiple aspects such as river health degree, pressure bearing and restoration capability, ecological service value and the like, and the quality of the river ecological system is improved. And the quantitative index selection and characterization method enables the evaluation to be more scientific and objective, and provides a clear target and direction for ecological restoration.

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 invention relates to a method for identifying microbial core species in a river ecosystem, and belongs to the field of microbial ecology. Through OTU relative abundance data, a presence-absence matrix is constructed, and an OTU occurrence rate and an average relative abundance are calculated. And evaluating the OTU ecological importance, and identifying a potential core OTU. And analyzing the consistency of the OTU occurrence frequency and the time scale in combination with the time point location, and generating a ranking index Index for ranking. And performing Bray-Curis similarity analysis to quantify the structural diversity of the OTU community, and identifying the OTU which has the greatest influence on the community similarity. And determining a core OTU threshold value based on an inflection point method and a growth rate method, verifying a core classification group combination mechanism by using a Sloan neutral model, and finally determining the representativeness of the core OTU by comparing the actual occurrence frequency with model prediction. According to the method, rich information is provided for explaining the diversity pattern of the microflora level.

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 modular ecological net flow channel structure comprises a land area buffer area, an ecological net flow channel and a water level variable amplitude area, a net flow channel division bin is arranged in the ecological net flow channel, a water collecting hole is formed in the upper portion of a water inlet area of the ecological net flow channel, the water inlet area is communicated with the net flow channel division bin through a bottom water passing hole, and the water inlet area is communicated with the water level variable amplitude area. A ceramsite purification layer is filled in the net flow channel division bin, and a top overflow port is formed in the upper part of the outer side of the net flow channel division bin. Modularized ecological flow purification ditch structures are added into a land area buffer area and a water level variable amplitude area of a river and lake ecological buffer zone, the hydraulic retention time of sewage in the buffer zone is prolonged, and the problem that runoff pollution cannot be effectively intercepted and purified due to the fact that the width of the buffer zone is insufficient can be solved; the method ensures that the runoff is effectively slowed down and dispersed before entering the lake, is an effective water environment treatment technology, and is of great significance for protecting the lake water quality and maintaining the river ecosystem.

The invention provides a design method of a river ecological garden landscape dike dam, which comprises the following steps of: 1, acquiring hydrological data of a river and surrounding environment information of the river, establishing a three-dimensional terrain model, and analyzing and determining flood frequency and flood peak flow parameters of the river; water conservancy projects, ecological protection and landscape design are organically combined, the river flood control function is guaranteed, meanwhile, a river ecological system is protected and restored to the maximum extent, the surrounding landscape quality is improved, and the requirements of people for the beautiful living environment are met; through accurate hydrological data collection and analysis, design parameters are optimized in combination with an advanced finite element analysis method and a genetic algorithm, so that the dike dam has higher stability and safety under adverse conditions of flood, earthquake and the like, and the disaster risk is reduced; in the construction process, strict quality detection and process supervision are conducted on all construction links, the construction quality of the dike dam is ensured, the service life of the dike dam is prolonged, and the later maintenance cost is reduced.

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 invention discloses an air-sky-ground integration-based dynamic monitoring and evaluation method for a cowfish resource. The method comprises the following steps of 1, constructing an air-sky-ground monitoring system of an activity area of cowfishes in the Yangtze River; 2, revealing a space-time distribution rule of the Yangtze River cowfish resources; 3, constructing a Yangtze River cowfish resource dynamic evaluation model coupled with bait, hydrology, hydrodynamic force and human activity factors; 4, key factors influencing the number of the Yangtze River cowfish populations are recognized; 5, predicting a resource evolution rule of the Yangtze River finless guinea pigs under the multi-factor comprehensive action, and providing an artificial protection and resource recovery strategy of the population number of the Yangtze River finless guinea pigs; the method disclosed by the invention accurately reveals the resource change of the cowfish under the action of multiple factors, comprehensively improves the monitoring and protection level of the cowfish in the Yangtze River, and provides technical support for the long-term sustainable development of cowfish populations and the protection and restoration of the ecological system in the Yangtze River.

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 invention discloses a reservoir ecological scheduling sequential decision-making method based on positive extrinsic performance, and aims to optimize a reservoir scheduling strategy so as to improve an ecological protection effect on a downstream river in a dry season. The method comprises the following steps: firstly, calculating a positive extrinsic index (PEI), and quantifying improvement benefits of reservoir scheduling on flow and a fish habitat environment; and then establishing a remaining period ecological benefit function, comprehensively considering the ecological benefits of the current time period and the future time period, and carrying out recursive optimization by adopting a dynamic planning or approximate dynamic planning algorithm. State variables such as reservoir capacity, runoff and time periods are discretized, an optimal scheduling strategy of each time period is generated through recursion calculation, and termination of the recursion process is judged by setting convergence conditions. The method not only can meet the water supply, power generation and irrigation requirements of the reservoir, but also can effectively improve the health level of a river ecosystem.

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.