57 results about "Ecological niche" patented technology

The invention discloses a three-dimensional water ecological restoration method based on an ecological system, and the method specifically comprises the following steps: S1, carrying out the construction of a temporary dam for a river channel of a construction area, and carrying out the water ecological operation and water level reduction for the construction area; impurity cleaning is conducted on the river channel area after the water level is lowered; s2, in-situ remediation of the bottom mud: scattering a bottom material modifier in the river channel area after the sundries are cleared to complete the in-situ remediation of the bottom mud; submerged plants are planted; s3, after the submerged plants are planted, an ecological water purification barrier and a biological grid are installed, and water purification is conducted; s4, emergent aquatic plant buffer zone planting, microorganism regulation and control and aquatic animal putting are conducted on the two sides of the river channel, a three-dimensional water ecological restoration network is constructed, and water ecological restoration is completed. Through the synergistic effect of the ecological water purification barrier and the biological grid, rapid and high-strength physical adsorption and microbial degradation of pollutants are achieved, meanwhile, ecological niche is built, and recovery of biological diversity is achieved.

The invention discloses a riverway ecological protection slope, and relates to the technical field of riverway nursing, the riverway ecological protection slope comprises a protection slope body which is sequentially arranged from the slope top to the slope toe, the protection slope body comprises a foundation supporting layer, an ecological structure layer and a vegetation community layer from inside to outside, and the ecological structure layer comprises a geotechnical composite material layer laid on the foundation supporting layer; the geotechnical composite material layer is of a three-dimensional net-shaped structure or a bag-type structure. Complex mechanical transmission, movable parts and sealing structures are completely omitted. The ecological niche complementary mixed planting mode of deep-rooted shrubs, shallow-rooted herbaceous plants and slope toe aquatic plants is adopted, the deep-rooted shrubs can enhance the deep stability of a slope body, the shallow-rooted herbaceous plants quickly cover a slope surface to reduce surface erosion, the aquatic plants are connected with a water and land ecological interface, and the deep-rooted shrubs, the shallow-rooted herbaceous plants and the water and land ecological interface cooperate to form a multi-layer and high-stability vegetation community; the water and soil conservation capacity of the bank slope is improved, diversified habitats are provided for animals and plants, and the natural ecological function of the river bank slope is restored.

The invention relates to the technical field of species ecological niche modeling, and provides a coastal wetland waterfowl ecological corridor construction method and system, and the method comprises the steps: collecting target waterfowl species distribution point data, and obtaining a waterfowl species distribution data set; performing habitat suitability modeling on environmental factor data and the waterfowl species distribution data set through a species distribution model to obtain a coastal wetland ecological source land; habitat suitability prediction modeling is carried out on the environment variables through a random forest algorithm, resistance value assignment is carried out on suitability indexes, and a coastal wetland comprehensive resistance surface is obtained; and carrying out multi-scene corridor path identification on the coastal wetland comprehensive resistance surface and the coastal wetland ecological source land to obtain the coastal wetland waterfowl ecological corridor. According to the method, the functionality of the ecological corridor under different ecological backgrounds can be comprehensively reflected, so that the ecological suitability of the constructed corridor is improved.

The invention discloses a multi-factor-driven grass, shrub and tree multi-level configuration method for a hydro-fluctuation belt in a high and cold reservoir area, and belongs to the technical field of plateau wetland ecological restoration and slope surface biological protection. The method comprises the following steps: S1, constructing a high and cold reservoir area bank slope three-dimensional terrain model, and obtaining the slope direction, gradient and elevation distribution information of each slope section; s2, establishing a zoning model; s3, carrying out ecological niche adaptability matching on each subarea, and selecting optimal herbaceous, shrub and arbor types and quantity ratios; s4, establishing a suitable plant database; s5, recovering automatic layout on the scheme graph; s6, adopting a combined construction mode of spray seeding, field planting and broadcast seeding to improve the survival rate; s7, establishing a recovery effect discrimination model, and forming a complementary planting feedback closed loop in combination with threshold control; a technical scheme which adapts to regional environment heterogeneity and automatically recommends a herbal, shrub and arbor configuration structure is constructed, and zoned planting, accurate recovery and structure optimization are respectively performed in three elevation zones A, B and C of the hydro-fluctuation belt.

The application discloses a method for plant combination screening and vegetation construction of ion-type rare earth mines based on niche complementation, and belongs to the technical field of mine ecological restoration, and comprises the following steps: S1, habitat evaluation; S2, construction of a niche index system; S3, candidate plant screening; S4, plant combination optimization; S5, vegetation construction implementation; and S6, dynamic management. The method for plant combination screening and vegetation construction of ion-type rare earth mines based on niche complementation is used, the vegetation survival rate and coverage rate of ion-type rare earth mines are improved, the improvement of soil physical and chemical properties is accelerated, the heavy metal and rare earth element residues are reduced, and water and soil loss is effectively prevented; the constructed vegetation community has the advantages of strong anti-interference ability, good self-maintenance ability, high restoration efficiency, short cycle, and the like; and ecological restoration and efficient resource utilization are considered.

The invention relates to a method for breeding chrysomyia megacephala larvae based on a complex microbial inoculant fermented feed, and belongs to the technical field of chrysomyia megacephala larva breeding. The action time of different strains is regulated and controlled by preparing the microcapsules to wrap the complex microbial inoculants, in the anaerobic environment at the initial stage of fermentation, lactic acid bacteria can produce a large amount of acid to inhibit growth of pathogenic bacteria and putrefying bacteria, at the moment, the microcapsules can effectively protect the complex microbial inoculants wrapped in the microcapsules from being damaged by the low-pH environment, and the complex microbial inoculants can be effectively prevented from being damaged by the low-pH environment along with continuous fermentation. The lactic acid bacteria break the microcapsule structure and slowly release the complex microbial inoculant to preempt the ecological niche in the material, the breeding method can enable different microbial inoculants to play a role in respective adaptive environments, the action efficiency of the complex microbial inoculant is effectively improved, and generation of harmful gas is reduced.

This invention relates to the field of planting and breeding technology, specifically to an optimization system for planting and breeding strategies that promotes high density and stress tolerance, and a method for maize breeding. In this invention, by running a support vector machine to compare proline concentrations and eliminate low-value entries, the limitations of traditional empirical breeding sample quantity are overcome, enabling precise solution of the targeted gene array for extreme stress resistance potential. By calling the array node coordinates and merging preset ear height and leaf angle parameters into the state tensor, a graph attention network is introduced to calculate the attention weight coefficients between multiple dimensional parameters, completing precise modeling of spatial mutual occlusion and competition constraints among multiple plant individuals under extreme ecological niches, maintaining the peak photosynthetic yield of the population at full environmental density. By analyzing the stomatal conductance sequence within the array to extract the inverse gradient multiplied by the negative penalty coefficient, the shared stress-resistance biological abstraction characteristics across ecological niches are extracted, enhancing the robustness of phenotypic prediction under extreme habitats, and transforming biological pollination risk into a strict mathematical convergence constraint.

The invention discloses a desertification restoration vegetation configuration optimization method and system based on microtopography regulation and control. The method comprises the following steps: dividing a research area into typical microtopography units according to surface morphological characteristics; measuring environmental factors in each microtopography; collecting functional character indexes and abundance of different microtopography unit species, calculating a community weighted mean value and a functional diversity index in combination with an environmental factor, calculating an ecological niche width and an optimal environmental parameter, and storing the ecological niche width and the optimal environmental parameter as a species ecological niche parameter table; constructing a three-dimensional adaptability matrix, calculating a comprehensive adaptability index of each species in each microtopographic unit through a adaptability deviation function, constructing a multi-objective optimization model by using the comprehensive adaptability index, a community weighted mean value and a functional diversity index, and setting space and ecological constraints; the model is solved to output the optimal plant combination and proportional relation under different micro-terrain units, and a spatialized vegetation configuration scheme is generated; according to the method, the problem that traditional ecological restoration is lack of a micro-topography zoning and quantitative configuration basis is solved.

The invention discloses a mountain species protection system based on a microclimate and ecological niche model in the technical field of biodiversity protection, which comprises a microclimate sensor network module, a data preprocessing module, an ecological niche prediction module, a protection priority evaluation module and a decision output platform module, the microclimate sensor network module comprises a multi-type sensor unit, a gradient layout unit and a dual-mode transmission unit, the mountain species protection system based on the microclimate and ecological niche model is reasonable in structural design, the data precision is improved, the deviation problem of a traditional constant LRT hypothesis is solved through dynamic LRT monitoring, the protection pertinence is enhanced, and the reliability of the mountain species protection system is improved. A first-level protection area of a high-risk mountainous area is accurately identified, dynamic adaptability and a sensor network support real-time data updating, sudden climate changes can be dealt with, the practical value is remarkable, and the method can be applied to research concerned arid areas and high-humidity low-direct-reduction-rate areas.

The invention discloses an agricultural park planting and breeding planning method and system based on multi-model fusion, and relates to the technical field of intelligent agriculture. The method comprises the following steps: firstly, collecting multi-source heterogeneous data such as climate, terrain and soil of a park; deep nonlinear ecological niche features are extracted by using a variational auto-encoder (VAE), and a resource endowment mode is objectively identified through a Gaussian mixture model (GMM); and then constructing a LightGBM multi-label prediction model to calculate the industrial theoretical suitability, executing supply and demand mismatch diagnosis and difference analysis (Gap analysis) in combination with the actual planting situation, and quantitatively mining the industrial planting expansion potential. According to the method, the problems of high subjectivity, insufficient feature mining and difficulty in potential quantification of traditional planning are effectively solved, a scientific decision from objective resource classification to precise industrial layout is realized, and the agricultural resource allocation efficiency is remarkably improved.

The invention belongs to the technical field of habitat monitoring, and discloses a deep ecological niche model habitat monitoring system based on multi-source remote sensing data, which is suitable for habitat suitability dynamic monitoring and future distribution prediction of extremely dangerous waterfowls such as green-head diving ducks. According to the system, multi-source remote sensing images, unmanned aerial vehicle hyperspectral and laser radar data and ground ecological monitoring and Internet of Things sensing information are integrated, ecological factor three-dimensional tensors are constructed, and deep ecological niche modeling is carried out in combination with Transform-based space-time coding and a maximum entropy nested model. An ecological factor fusion response function and an SHAP value interpretation mechanism are introduced into the system, dynamic weighting and interpretable analysis of key environment variables are achieved, and simulation prediction of potential habitats in 2030 under the RCP climate scene is supported. The system has the functions of multi-factor fusion, space-time modeling, interpretable reasoning and feedback optimization, and is widely applied to the scenes of endangered species protection, ecological red line evaluation, intelligent wetland supervision and the like.

The invention provides a migrant bird habitat environment monitoring and protection method based on the Internet of Things, and relates to the technical field of environment monitoring and protection. Comprising the following steps: constructing a three-dimensional environment model of a target migrant bird habitat, and dividing the habitat into monitoring sub-regions; environment factor data of each monitoring sub-region are collected and preprocessed; constructing a habitat suitability evaluation model, and optimizing an environmental factor preference interval in the ecological niche factor analysis model by using kernel density estimation; deploying fixed Internet of Things monitoring nodes for the high-suitability level area; and dynamically monitoring the patrol path of the mobile monitoring equipment in the low-suitability-grade area according to seasonal periods. According to the method, the suitability is evaluated by applying a kernel density estimation and ecological niche factor analysis model, fixed and mobile monitoring nodes are deployed, and a patrol path is planned. The scientificity, the accuracy and the initiative of monitoring are improved, the ecological stability of the habitat of the migrant birds is powerfully guaranteed, and the long-term reproduction and inhabitation of the migrant birds are promoted.

This invention relates to the field of smart agriculture technology, specifically to a decision-making system and method for Gastrodia elata cultivation under forest cover based on ecological simulation. The system includes: a data acquisition module for collecting environmental monitoring signals from the target cultivation area and historical growth data of the target plants; and a niche assessment module for calculating the niche suitability index of each planting unit based on the differences in microclimate characteristics between adjacent planting units within the target cultivation area, in response to the environmental monitoring signals. This invention generates a niche suitability index by calculating the microclimate characteristic difference sequence between adjacent planting units, enabling precise location of specific coordinates of environmental deviations during the decision-making process. This allows the system to identify areas of sudden changes in local temperature and humidity gradients or abnormal soil water potential, improving the accuracy of environmental perception from the plot level to the planting unit level, and providing a reliable data foundation for subsequent differentiated regulation.

This invention proposes a data analysis-based method and system for assessing fish resources in reservoirs, belonging to the field of resource assessment. The method includes collecting ecological characteristic data and population characteristic parameters of introduced and native fish populations in the reservoir; calculating niche overlap indices between introduced and native fish populations in both spatial and trophic dimensions, and integrating these to obtain a comprehensive niche difference index; calculating the population growth potential of each population and obtaining a fitness difference index; processing the comprehensive niche difference index and fitness difference index to obtain a coexistence stability score and determining the coexistence stability level of the two populations; acquiring time-series data of the niche overlap index, extracting fluctuation characteristic parameters, and generating a fish resource assessment report based on the fluctuation characteristic parameters and the coexistence stability level. This invention can comprehensively assess niche differences between populations.

The invention belongs to the technical field of microbiological detection and soil biology, and particularly relates to a method for screening arbuscular mycorrhizal fungi in soil, which comprises the following steps: preparing a soil propagule suspension, realizing single individual separation and physical isolation of propagules by using a microecological niche array, and screening the arbuscular mycorrhizal fungi in the soil. The strain is co-cultured with a sterile host root system under a specific abiotic stress condition, and the stress-tolerant functional strain is directly obtained through microscopic monitoring, positive symbiont confirmation and molecular identification. According to the technical scheme, competitive bias voltage can be avoided, the slave mycorrhizal fungi purified strains with low phosphorus, drought or saline-alkali tolerance are efficiently screened out, and screening objectivity and functional targeting are remarkably improved.

According to the rice field carbon emission reduction and yield increase synergistic system and method, EC11 bacteria inhibit methane bacteria by occupying ecological niche, and micromolecule water treated by fullerene not only optimizes the soil microenvironment (the volume weight is reduced by 12%), but also can promote the metabolic activity of the EC11 bacteria (the respiration rate is increased by 25%) to form 1 + 1gt; and 2, the synergistic effect is achieved. Meanwhile, a carbon monitoring and trading system is pre-embedded into a planting process, and a'planting and trading 'mode of paddy field carbon assets is realized for the first time.

The present application relates to the technical field of smart forestry and under-forest planting planning, in particular to a kind of under-forest ginseng ecological niche space layout intelligent optimization method, comprising: benchmark construction and simulation steps: obtain forest land data to construct ideal habitat capacity model to generate potential energy grid chart, and carry out virtual planting simulation to generate simulated output data;Double-track residual generation step: generate real residual matrix in combination with historical data and potential energy chart, generate theoretical residual matrix in combination with simulation data and potential energy chart;Structure comparison and optimization step: calculate matrix structure similarity;Logic determination step: in response to similarity greater than threshold, determine as spatial layout factor and execute rearrangement optimization;Otherwise, it is determined as environmental factor and generates improvement prompt;The present application realizes the accurate decoupling between the environment background and the space layout of the low yield reason.

The invention provides a malania oleifera multi-dimensional ecological niche regulation and control planting method, relates to the technical field of plant cultivation, and aims to ensure that a stable parasitic relationship is established between malania oleifera and hosts before nursery stock outplanting through associated seedling culture in the same cup, solve the key problems that flesh and root systems are easy to rot and difficult to parasitize, and greatly improve the transplanting survival rate of nursery stocks. According to the method, the root ecological niche and the light ecological niche of the malania oleifera are subjected to multi-dimensional, dynamic and accurate regulation and control. According to the method, associated seedling culture and under-forest progressive light control are organically combined, a technical chain of seedling culture-transplanting-growth promotion integration is formed, the contradiction that the environmental requirements in the seedling stage and the growing stage are disjointed is solved, and healthy and rapid growth of malania oleifera from seedlings to adult plants is achieved. The selected host plants are common and easy to obtain, the method is convenient to popularize and apply in vast rural areas of malania oleifera suitable growing areas, and the method has important significance for protecting the rare species and developing the rural characteristic industry.

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

The invention discloses a rhizobium mesonii strain APHNZY-24-4 which has the functions of promoting peanut growth and inhibiting aspergillus flavus, and the preservation number of the rhizobium mesonii strain APHNZY-24-4 is CCTCC (China Center for Type Culture Collection) M 2026228. According to the invention, integration of two functions of generating a specific bacteriostatic volatile matter, namely 3-methylbutyric acid, and efficient symbiotic nitrogen fixation on a single strain is realized in the rhizobium japonicum for the first time. 3-methylbutyric acid released by the strain can accurately down-regulate expression of toxin synthesis key genes and spore development core genes in aspergillus flavus, so that efficient bacteriostasis is realized on the molecular level. Through one-time inoculation, the strain can synchronously achieve the dual purposes of growth promotion and nitrogen fixation and source bacteriostasis at the rhizosphere ecological niche of the peanuts. Especially aiming at the biological characteristics of overground flowering and underground fruiting of peanuts, a lasting biological fumigation protection layer can be formed in a soil microenvironment in a legume development critical period.

This invention proposes a comprehensive calculation method and system for marine biodiversity based on multiple indices, belonging to the field of marine biodiversity assessment technology. The method acquires species abundance data and environmental parameter data for phytoplankton, zooplankton, and fish in a target sea area; it correlates species occurrence frequency with the numerical range of environmental factors to generate the niche width of each species for each environmental factor, then multiplies this value by relative abundance, sums the results, and compares the sum with the theoretical maximum niche width to generate the overall niche occupancy intensity of the community; based on this intensity, it assigns weights to multiple diversity indices using preset baseline weights to generate dynamic weights; and based on these dynamic weights, it performs a weighted summation of the diversity indices to generate a comprehensive biodiversity index. This invention achieves adaptive weight allocation, improving the accuracy and ecological relevance of the assessment.

The application discloses an invasive plant prevention and control method and system based on niche prediction, which comprises the following steps: acquiring spatial distribution data and environmental data of invasive plants in a target area, and extracting key environmental factors affecting the survival and distribution of the invasive plants; inputting the spatial distribution data and the key environmental factors into a niche prediction model to generate a potential suitable area distribution matrix; based on the potential suitable area distribution matrix, an artificial intelligence image recognition algorithm is used to identify the invasive plants, and the target area is divided into a high-density occupation area, a diffusion transition area and a potential risk area; differential prevention and control is implemented according to the area division result; and replacement plant communities are configured in the ecological restoration area and the diffusion control area formed in the process, so that an ecological competition inhibition state for the re-diffusion of the invasive plants is formed. The application can realize early prediction of the diffusion trend of the invasive plants, accurate intervention on different risk areas and continuous occupation of the ecological niche after prevention and control.

This invention discloses a method for the zonal symbiotic aquaculture of striped sawfish and turbot in a recirculating aquaculture system, belonging to the field of aquaculture technology. The method involves dividing the aquaculture pond into upper and lower zones within a unified recirculating aquaculture system using permeable mesh screens. Striped sawfish are introduced into the upper and middle layers, while turbot are introduced into the lower zones. The water temperature is controlled at 20-24℃, with a photoperiod of 12L:12D, with low light intensity in the upper zone and shading in the lower zone. The upper zone is fed floating extruded feed, while the lower zone is fed sinking soft pellet feed, with staggered feeding times. Water quality is controlled with dissolved oxygen ≥6mg / L, ammonia nitrogen <0.1mg / L, nitrite <0.1mg / L, and pH 7.8-8.2. Regular monitoring and zonal harvesting are conducted. This invention utilizes physical zoning and complementary ecological niches to avoid interspecies competition and interference, enabling two high-value fish species to coexist efficiently in the same water body. This significantly increases yield and economic benefits per unit water volume, reduces aquaculture risks, saves energy and reduces consumption, and allows for precise management, making it suitable for the promotion and application of factory-scale recirculating aquaculture.

The invention discloses a complex microbial inoculant for repairing alpine degraded grassland based on indigenous mycorrhizal fungi and preparation and use methods thereof, and relates to the technical field of environmental microbial ecological restoration, the complex microbial inoculant comprises: a carrier which is a mixture of highland barley straw powder and humic acid in a mass ratio of 3: 1; according to the arbuscular mycorrhizal fungi separated and screened from rhizosphere soil of alpine meadow degraded grassland in Qilian Mountain, the parasitic relationship between mycorrhiza and bacteria is utilized, aboriginal arbuscular mycorrhizal fungi hyphae provide a colonization space for phosphate-solubilizing bacteria, and the bacteria secrete organic acid to dissolve soil insoluble phosphorus and are directly transported to plant root systems through a hypha network, so that the phosphorus-solubilizing bacteria are degraded, and the phosphorus-solubilizing bacteria are degraded. According to the invention, a synergistic mechanism of'hypha-phosphorus channel 'is formed, meanwhile, bacillus subtilis is added to secrete antibacterial substances such as lipopeptide antibiotics and inhibiting pathogenic bacteria such as fusarium, functional microorganisms are enriched on the surface of hypha, and the functions of mutual excitation, ecological niche antagonism and the like of the functional microorganisms are utilized, so that the soil functionality and the stress resistance of host plants are enhanced.

The invention relates to the related technical field of forestry science. The forest resource intelligent monitoring method based on multi-source remote sensing and AI comprises the following steps: carrying out space-time alignment and feature level fusion processing on meteorological satellite data, an optical remote sensing image and a laser radar point cloud to generate a multi-dimensional forest environment data cube; based on preset shared social economic path climate scene data, carrying out tree species suitable growth area migration modeling processing, and generating a dynamic migration probability graph; based on a preset tree species physiological parameter library and the dynamic migration probability graph, ecological niche-physiological coupling analysis processing is carried out, and a multi-dimensional vulnerability matrix is generated; and based on the multi-dimensional vulnerability matrix, performing multi-target genetic evolution calculation processing, and generating a climate adaptation type tree species configuration topology scheme, so as to achieve the technical effects of improving the multi-source data fusion capability, optimizing the tree species migration prediction precision and enhancing the ecological adaptability of the configuration scheme.

The application discloses a city wetland restoration effect evaluation method and system based on bird behavior frequency distribution, relates to the technical field of ecological restoration evaluation, and comprises the following steps: dividing the wetland into different habitats according to the degree of human intervention and the vegetation structure and coding; collecting bird individual behavior data in the grid; constructing a basic frequency table with the restoration type, the behavior type and the vertical level as the dimensions, extracting the restoration measure-behavior response bias characteristic value, the niche potential gradient characteristic value and the group overlap pressure characteristic value; constructing a multi-dimensional evaluation model containing the behavior function integrity balance index, the vertical structure niche support index and the community stability correction factor based on the above characteristics, and calculating the wetland restoration ecological behavior benefit comprehensive index; comparing the comprehensive index with the diagnostic threshold value and tracing back the sub-characteristic values, and outputting the restoration effect grade and the management suggestion. The application realizes multi-dimensional quantitative evaluation of the wetland restoration effect.

The invention discloses an ecological suitable plant community gradient configuration greening method and system, and relates to the technical field of ecological restoration and intelligent landscaping, and the method comprises the steps: carrying out the precise matching and plant screening of ecological niche based on environment gradient, building a plant ecological niche database of the environment gradient, configuring different dominant species combinations according to the environment gradient, and constructing a plant ecological niche database of the environment gradient. And constructing an environment gradient plant community structure, introducing the environment gradient plant community structure into a dynamic succession model and an intelligent maintenance feedback system, and pre-judging the growth change of the community along with time under different configurations. Scientific and accurate matching of plants is realized by establishing a matching database of environmental gradients and plant ecological niches, the adaptability and the survival rate are improved, intelligent monitoring, pre-judgment and automatic regulation and control of community growth are realized by introducing a dynamic succession model and a closed-loop intelligent management system, and on the whole, the method has the advantages of being high in practicability and easy to popularize. The method solves the problems that traditional greening seed selection is blind and the maintenance cost is high, and ecological, intelligent and sustainable efficient greening management is achieved.

The invention discloses a crassostrea gigas culture site selection method, device, equipment, medium and product, and relates to the field of aquaculture site selection, and the method comprises the steps: obtaining the actual multi-source marine environment data of crassostrea gigas, and carrying out the prediction through a global scale model according to a global scale marine environment variable, and obtaining the global scale species existence probability; the global scale model comprises a plurality of integrated global scale crassostrea gigas ecological niche single models; taking the regional scale marine environment variable as the input of the nested ecological niche distribution model, taking the global scale species existence probability as the covariable of the nested ecological niche distribution model, and processing based on a covariable strategy to obtain the final species existence probability; the nested ecological niche distribution model is an integrated multi-regional-scale crassostrea gigas ecological niche single model; and according to the final species existence probability, carrying out suitability evaluation to obtain an evaluation result. According to the invention, the reliability of site selection can be improved.

The invention discloses an aquatic organism ecological restoration system and a construction method, relates to the technical field of water body environment treatment, and aims at solving the problems that in traditional aquatic organism ecological restoration, artificial fish nest assembly is tedious and time-consuming, errors are prone to occurring, and the structural stability is affected; the technical problems that in the prior art, stability is difficult to keep after installation, a fish nest is damaged due to shaking displacement caused by external force of water flow, and meanwhile equipment can only be matched with a fish basket of a single size, is lack of flexibility and limits the repairing effect are solved, and the method comprises the following steps that S1, bamboo fish baskets and ecological niche construction are built; s2, basic aquatic organisms are introduced; s3, putting fishes and insects; s4, protecting the juvenile fishes and the benthonic animals. The device still keeps a stable posture under water flow impact or water level fluctuation, the fish nest structure is effectively prevented from overturning or shifting, it is ensured that the fish nest stably suspends for a long time under complex hydrological conditions such as stormy waves, water flow and water level frequent changes, the locking reliability is remarkably improved through a magnetic attraction and mechanical double-insurance mechanism, and the risk of device loosening caused by single-point failure is avoided.