43 results about "Ecological safety" patented technology

The application provides a forest and grassland fire early identification and positioning method based on infrared thermal imaging and visible light fusion, and belongs to the technical field of forest and grassland resource protection and ecological safety monitoring. The method comprises the following steps: synchronously collecting infrared and visible light images and recording the space-time information of a monitoring platform; performing pixel-level registration on the two images; extracting a thermal anomaly suspected area from the infrared image based on a dynamic background temperature field, and extracting a smoke suspected area from the visible light image based on color, texture and motion features; performing spatial correlation analysis on the suspected areas extracted from the two channels, and combining the area growth rate and temperature rise rate of continuous multiple frames to construct a fire evolution model to confirm a fire point; calculating the three-dimensional geographic coordinates of the fire point based on the photogrammetry collinear equation and a digital elevation model; and generating and outputting alarm information containing the three-dimensional coordinates and fire intensity. The application realizes early and accurate identification and positioning of forest and grassland fires, and significantly reduces the false alarm rate.

The present application relates to the technical field of water ecological early warning, and discloses a mountain city water ecological safety early warning method based on multi-level division, comprising the following steps: step 1, obtaining multi-source heterogeneous spatio-temporal data of a target mountain city; step 2, identifying topographic and geomorphic units through a topographic analysis algorithm; step 3, constructing a three-level stereoscopic spatial data model for mountain city water ecological safety early warning, which comprises a mountain ecological barrier layer, a water system network layer and a city fusion layer; step 4, converting index values into score values; and step 5, using a weighted summation model to calculate early warning values and a comprehensive early warning index at each level according to the score values and mountain adaptability comprehensive weights, determining an early warning level and generating an early warning result. The present application can realize systematic and stereoscopic quantitative evaluation and dynamic early warning of mountain city water ecological safety, and is helpful to improve the accuracy and applicability of evaluation results in complex mountain environments.

The present application relates to the field of data processing technology, and relates to an ecological safety pattern construction system based on a minimum cumulative resistance model, which comprises an ecological data preprocessing and source extraction module, a resistance factor extraction module, a dynamic resistance surface construction module, a cumulative resistance evaluation module, a key ecological element identification module and a safety pattern generation module, and is characterized in that: the ecological source data in a target region is subjected to feature density statistics to obtain an ecological source distribution map; the ecological source distribution map is subjected to inhibition influence analysis to obtain resistance factors; the resistance factors are subjected to spatial data superposition to obtain a dynamic resistance surface; the ecological source distribution map is subjected to spatial diffusion resistance cumulative evaluation to obtain a cumulative resistance surface; the cumulative resistance surface is subjected to key ecological element analysis to obtain ecological corridors and ecological nodes; and the ecological safety pattern of the target region is constructed according to the ecological corridors and the ecological nodes; and the present application can improve the efficiency of the ecological safety pattern construction based on the minimum cumulative resistance model.

This invention relates to a method, system, processing device, and storage medium for constructing a "two-layer, dynamic verification, and multi-scale collaborative" ecological security pattern. The method includes: generating ecological source areas of the study area based on a "baseline layer-optimization layer" two-layer source area identification framework; synergistically coupling these source areas with pre-defined "basin-county-urban-rural gradient" multi-scale analysis units to obtain a "basin-county-urban-rural gradient" multi-scale collaboratively coupled ecological source area protection map of the study area; determining the "basin-county-urban-rural gradient" multi-scale ecological congestion units and connectivity enhancement units of the study area; and constructing the "two-layer, dynamic verification, and multi-scale collaborative" ecological security pattern of the study area based on the generated ecological source area protection map and the determined ecological congestion units and connectivity enhancement units. This invention can be widely applied in the field of spatial ecological protection and restoration planning technology.

The application relates to the technical field of water resource management, and particularly discloses a multi-water-source multi-target regional water resource optimal allocation system under ecological constraints, which comprises an intelligent agent interaction analysis module, which is used for constructing four types of intelligent agents of life, industry, agriculture and ecology, introducing an ecological security pattern index as environmental feedback, adopting enhanced learning to dynamically optimize water use strategies of the intelligent agents, and realizing spatiotemporal coupling analysis of water use competition and ecological constraints; the application constructs multiple types of water use intelligent agents and introduces the ecological security pattern index as the environmental feedback, dynamically simulates the competition, sharing and transfer relationship among water users within a time step, and accurately identifies the key path of water use conflicts. The enhanced learning mechanism enables the intelligent agents to gradually form water use strategies adapting to the ecological constraints in the iteration process, realizes bidirectional coupling of water use behaviors and ecological environment states, and overcomes the technical bottleneck that a traditional allocation model is difficult to depict real-time mutual feedback of water users.

A kind of quick bag sealing device and method for narrow space radioactive atmosphere isolation, including quick detachable inspection area, equipment back loading area, disassembly operation area;Wherein quick detachable inspection area, equipment back loading area, disassembly operation area all have sealing;And the top of quick detachable inspection area, equipment back loading area is equipped with crane hook reserved interface;Disassembly operation area side has PE operation glove, bottom has operation hole reserved interface.This application can significantly reduce the risk of radioactive material leakage by effective sealing mechanism, protect the operating personnel from radiation damage, while preventing radioactive aerosol from polluting the external environment.Using multiple sealing technology, including buckle and heat sealing, ensures zero leakage of radioactive atmosphere, meets strict radiation protection standards.Effective sealing and isolation measures reduce the possibility of radioactive material release into the environment, help maintain ecological safety.

The application relates to the technical field of ecological safety optimization, and discloses an ecological safety pattern intelligent simulation optimization system based on reinforcement learning. An experience pool forming module of the system divides historical optimization strategies into multiple experience layers to form a multilayer experience pool based on the gap between ecological indexes and strategy confidence of the historical optimization strategies. A strategy determining module determines intelligent optimization strategies at each stage based on a set ecological safety target state, and screens the multilayer experience pool to obtain experience optimization strategies in combination with strategy confidence and target matching degree. A strategy adjusting module adjusts the two strategies by using a dynamic mechanism to cope with real-time ecological changes, and determines a target optimization strategy. A simulation optimization module simulates and optimizes the ecological safety pattern based on the target optimization strategy. A state acquisition module acquires an actual state. An experience pool updating module updates the content of the experience layers based on the difference factors between the actual state and the target state, and perfects the multilayer experience pool data. The system can improve the dynamics and adaptability of ecological safety pattern optimization.

The application provides a hydrothermal soil humidity coupling regional agricultural drought monitoring method and system, which comprises the following steps: 1, collecting soil humidity data and meteorological element data of a research area; 2, determining the time scale value with the highest correlation in different seasons by considering the correlation between the accumulated hydrothermal factors and the soil humidity in different time scales by means of the Pearson correlation coefficient method; 3, calculating the lag time of soil moisture to precipitation and temperature by means of the cross wavelet transform method; 4, constructing a hydrothermal soil humidity coupling drought index RADI by means of a binary Copula model; and 5, dividing different drought grades to represent the regional agricultural drought conditions. The application evaluates the reliability and applicability of RADI in representing regional agricultural drought from the time dimension and the space dimension, provides more fine data support for the evolution characteristics of agricultural drought, and has important significance for regional grain production, ecological safety and environmental protection and the like.

This invention discloses a high-waterproof B1-grade flame-retardant eco-safety board and its preparation method. The board comprises a substrate layer and a decorative layer. All raw materials of the substrate layer are treated with phosphorus-nitrogen flame retardants by negative pressure impregnation, hot-pressing at a pressure of 12-14 MPa and a temperature of 95-105℃, resulting in a finished product density of 680-720 kg / m³. 3 The static bending strength has an average value of 28.8 MPa and a minimum value of 19 MPa. After immersion in room temperature water for 72 hours, there was no delamination. Five out of six immersion peel tests were qualified. The combustion performance meets the national B1 level flame retardant standard. This invention uses a negative pressure environment to allow the flame retardant to deeply penetrate into the internal structure of the substrate. Combined with high pressure, high temperature and precise hot pressing, it improves the density and interfacial bonding strength, achieving a synergistic improvement in waterproof, flame retardant and mechanical properties. It is suitable for high-safety and high-humidity scenarios such as furniture manufacturing, whole-house customization and interior decoration.

This invention provides an attractant for the bark beetle (S. spp.) and its application, relating to the field of green pest control in forestry. The attractant for the bark beetle in this invention is a hexyl acetate solution, prepared by mixing hexyl acetate with a volatile solvent at a volume ratio of 1:900-1100; the volatile solvent is a 70%-80% v / v ethanol solution. This invention uses hexyl acetate as the key component, combined with a volatile solvent in a specific ratio, to prepare the attractant, which exhibits good attraction effects on the bark beetle (S. spp.), is ecologically safe, and highly practical, effectively achieving green pest control in forestry. This attractant for the bark beetle (S. spp.) has excellent application prospects for population monitoring or large-scale killing of the bark beetle.

The present application relates to natural polymer materials and water treatment flocculant technical field, specifically to a kind of natural polymer flocculant, the flocculant is prepared from the following raw materials by weight parts: chitosan 20-30 parts, starch 15-25 parts, lignin 10-20 parts, modifier 5-10 parts, crosslinking agent 3-8 parts and deionized water 100-200 parts.The flocculant of the present application is modified by chitosan grafting, starch oxidation and lignin sulfonation, combined with glutaraldehyde crosslinking to form a three-dimensional network structure, with electric neutralization, adsorption bridging and sweeping effect, it can efficiently adsorb and agglomerate the negatively charged colloidal particles in water, it uses natural renewable polymer as raw material, molecular structure is degradable, no environmental residue, and low heavy metal content, solve the drawbacks of traditional flocculant, suitable for drinking water, surface water and high sensitive industrial wastewater treatment, with efficiency and ecological safety.

This invention belongs to the field of insecticide ecological safety evaluation technology, and specifically relates to a rapid evaluation method for insecticide safety based on parasitic wasp embryonic development. This invention uses the embryos of the cotton bollworm *Ichthyophthirius multifiliis* as the research object, selecting embryonic development status as the core evaluation indicator. Combining the statistical significance and quantitative change range of this indicator with the control group, a standardized experimental measurement method and a three-level ecological safety classification rule are established. By selecting commonly used agricultural insecticides bromfenac and abamectin, ecological safety evaluations were conducted. Compared with the control group, the number of normal embryos with bromfenac decreased by approximately 17%, classifying it as a medium-risk insecticide; the number of normally developing embryos with abamectin decreased by approximately 23.21%, classifying it as a high-risk insecticide. This application fills the technical gap in the ecological safety evaluation of insecticides at the parasitic wasp embryonic stage, improves the evaluation system for non-target natural enemies, and can be directly applied to pesticide research and development, insecticide screening, and field application guidance, contributing to the green development of agriculture.

Disclosed in the present invention are a γ-aminobutyric acid gated chloride ion channel allosteric modulator compound and the use thereof, i.e., (S)-4-(5-(3-chloro-5-(trifluoromethyl)phenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazole-3-yl)-2-methyl-N-(2-oxo-2-((2,2,2-trifluoroethyl)amino)ethyl)benzamide. The compound has an excellent control effect on pests such as thysanoptera, acarina and lepidoptera, is very friendly to bees, has high environmental ecological safety, can be used for preparing efficient, low-toxicity and safe insecticides, and has wide application prospects in agricultural production.

This invention discloses a method for controlling cyanobacterial blooms based on a cytochrome B6F complex inhibitor and its application, relating to the field of cyanobacterial bloom control technology. The method includes: chlorinating water containing cyanobacteria; adding a cytochrome B6F complex inhibitor to the water; wherein the cytochrome B6F complex inhibitor is DBMIB; by performing emergency chlorination on cyanobacterial cells followed by adding DBMIB to synergistically inhibit the activity of the cyanobacterial cytochrome B6F complex, blocking the photosynthetic electron transport chain, and inducing cyanobacteria to enter a functional inactivation state, thereby achieving long-term inhibition of their growth. This allows cyanobacteria to maintain a low density for up to two months, exhibiting high ecological safety and significant inhibition effect.

The application discloses a termite control decision-making method, device and equipment based on retrieval augmented generation. The retrieval augmented generation technology is deeply integrated with a large language model to construct an intelligent decision-making system, multi-modal termite monitoring data and historical control cases are collected, and a special knowledge base is built. The RAG technology is used to retrieve and match the optimal scheme of similar working conditions, and a large language model is used for reasoning to generate a targeted control decision. The termite monitoring data and the optimized scheme are accurately matched, and the control efficiency and ecological safety can be improved.

The application discloses a water intake fish expelling device and method for a hydropower station, comprising an acoustic fish expelling array, an optical fish expelling array and a bubble curtain generating unit arranged in sequence along the water flow direction, the three being connected with an ARM+FPGA heterogeneous edge intelligent control unit through waterproof cables arranged in an ellipse shape, the edge control unit integrating a PID algorithm, capable of receiving environmental sensor data to adaptively adjust equipment parameters, and remotely linked with a central control room of the power plant. The method defines a core protection zone through CFD simulation, quantitatively designs device parameters, and realizes efficient expelling through intelligent expelling operation and fault emergency treatment. The application eliminates protection dead angles through a sound-light-gas composite structure, adapts to complex water flow environments, has high automation, takes into account fish expelling effect and ecological safety, and is suitable for water intake protection scenes of hydropower stations.

This invention discloses a satellite map-based road network-guided positioning method for unmanned vehicles (UAVs), belonging to the field of UAV navigation technology. It quantifies the impact of surface softness, roadbed bearing capacity, and atmospheric and terrain disturbances on positioning perception using a surface compactibility model, a hydrological-matrix stability coefficient model, and an atmospheric-terrain disturbance coefficient model. Furthermore, it constructs a roadbed-positioning compatibility model to assess the compatibility between the current road network-guided positioning information and the actual situation. Finally, using the compatibility deviation as the core driver and atmospheric-terrain disturbance as the penalty factor, a threshold optimization model with a signed function dynamically generates a tolerance threshold for target bird activity density, and adjusts the planned path accordingly to avoid areas with high-density animal activity. This invention achieves quantitative assessment of the reliability of UAV positioning and dynamic path decision-making for ecological protection priorities under complex ecological conditions in the Yellow River Basin, balancing patrol efficiency and ecological safety.

The application provides a method for typical tropical marine ranching safety evaluation and future safety situation prediction, and relates to the technical field of ecological safety. The method comprises the following steps: determining an evaluation target; constructing a monitoring system, collecting and pre-processing to obtain a standardized time series index data set; setting a spatial control area and a time control benchmark to obtain an evaluation quantization benchmark system; constructing a BVPTL prediction model, outputting future safety situation prediction values and model feature importance parameters after training; establishing a three-level index system and a five-level quantization standard to form a safety evaluation model framework; using analytic hierarchy process and machine learning weight to conduct game combination weighting, and calculating comprehensive weights; then calculating current and future comprehensive safety indexes and dividing safety grades; and starting corresponding response and ecological restoration measures according to the current and predicted grades. The application realizes dynamic and accurate evaluation and early warning of the safety state of the tropical marine ranching.

The application discloses a kind of water-resistant mould-proof fish tank sealant and preparation method thereof, belong to sealant technical field.The application is to solve the technical problem that existing fish tank sealant is difficult to simultaneously realize long-acting mould-proof, ecological safety and structural durability.The sealant uses hydroxyl-terminated polydimethylsiloxane as base polymer, and includes mould-proof and algae-proof functional composite system, which is composed of ZIF-8 core-shell structure composite particles with zeolite molecular sieve surface modified by first silane coupling agent and anatase type nano titanium dioxide coated with cerium oxide with fluorine-containing alkyl silane grafted on the surface, and the two form Si-O-Si covalent bond through hydrolysable silane group and terminal hydroxyl and / or alkoxy silane crosslinking agent condensation reaction, and are bonded in silicone crosslinking network.The sealant of the application fixes functional components through chemical bonding, has long-acting mould-proof and algae-proof, high ecological safety and excellent water-resistant durability, and is suitable for fish tank, aquarium and other aquatic ecological sealing structures.

This invention belongs to the field of ecological restoration technology and discloses a temperature-controlled ecological soil conditioner, its preparation method, and its application. The preparation method of the temperature-controlled ecological soil conditioner includes the following steps: S1, taking undehydrated municipal sludge in muddy state, removing impurities, adding a heavy metal passivating agent, and stirring to react, obtaining pretreated municipal sludge; S2, mixing the pretreated municipal sludge with sawdust, fly ash, and temperature-controlled biochar, then stirring evenly to obtain a mixture; S3, adding a compound fermentation agent to the mixture, mixing evenly, and then performing self-heating composting fermentation. After fermentation, the product is crushed, sieved, and then aerated and aged to obtain the temperature-controlled ecological soil conditioner. This invention uses undehydrated municipal sludge as the main raw material, supplemented with sawdust, fly ash, and temperature-controlled biochar, and through heavy metal passivation, microbial inoculation, and multi-stage self-heating composting, prepares a green soil conditioner that combines high-efficiency fermentation, ecological safety, and soil compatibility.

The present application belongs to the technical field of plant genetic engineering, and relates to a heavy metal related isoprenylated plant protein gene SsHIPP6 of sudangrass and application thereof. The sequence of the sudangrass SsHIPP6 gene is selected from the nucleotide sequence shown in SEQ ID NO:1, a complementary nucleotide sequence or a variant having >95% homology, and when overexpressed in plants, the variant can reduce the cadmium accumulation in the aboveground part by >26.9% and the cadmium accumulation in the root system by >27.4%. The gene can effectively improve the resistance of plants to cadmium stress. By overexpressing the gene, the cadmium accumulation in the aboveground part of the plant can be reduced by >26.9%, and the cadmium accumulation in the root system can be reduced by >27.4%, thereby enhancing the survival rate and growth ability of the plant in cadmium contaminated soil, providing a possibility for planting high-quality forage grass on heavy metal contaminated land, and having important significance for guaranteeing the ecological safety of agriculture and the sustainable development of animal husbandry.

This invention relates to a compound microbial agent for promoting the germination of Dendrobium officinale seeds, belonging to the field of bio-fertilizer technology. It mainly includes Bacillus amyloliquefaciens, which dynamically constructs a constant microenvironment with a pH of 6.0 to 6.5 through metabolic synergy. Under acidic conditions, it induces carbonic anhydrase to generate calcium carbonate microcrystals to neutralize H⁺, and under alkaline conditions, it induces citrate synthase to secrete citrate and release H⁺, forming an "acid-base double buffer pair" with the mycelial network, thus controlling the pH fluctuation of the micro-region within ±0.3. This application also provides a method for preparing the microbial agent and its application technology, which significantly improves the germination rate and seedling quality of Dendrobium officinale seeds, while possessing advantages in ecological safety and economics, making it suitable for agricultural planting, ecological restoration, and other fields.

This invention discloses a method for direct seeding propagation of *Cibotium barometz* using native soil without sterilization, belonging to the field of plant propagation and seedling technology. This invention achieves ecological safety, low cost, and high efficiency in *Cibotium barometz* seedling cultivation, completely abandoning the existing method of sterilized substrate + tissue culture. It pioneers a zero-sterilization direct seeding technology using native soil, resolving the core contradiction between the harmful effects of sterilizing agent residues and the destruction of beneficial microorganisms. By utilizing locally sourced materials and natural forest light, the cost per seedling is reduced to ≤0.25 yuan, significantly lower than traditional techniques (≥3 yuan / seedling). Simultaneously, the seedling cultivation cycle is shortened by more than 30%. Relying on the natural microbial community of the native soil and the natural environment under the forest, the seedlings exhibit strong resistance and a high transplant survival rate (≥75%), achieving efficient integration of seedling cultivation and planting.

The application discloses a strain with high emulsification activity and anti-plant disease function, and the strain is Bacillus subtilis (CY-57) which is preserved in the China General Microbiological Culture Collection Center with a preservation number of CGMCC NO.28223. Bacillus subtilis The strain can produce a biological surfactant at a high yield, has excellent emulsification performance on a plurality of hydrocarbon compounds such as cyclohexane, n-hexadecane, liquid paraffin, kerosene and diesel oil, and can significantly inhibit the growth and invasion of a plurality of plant pathogenic bacteria (such as tomato early blight, wheat root rot, wheat scab, soybean root rot and rice seedling disease). The application further discloses a fermentation culture process of the strain, emulsification activity and application in biological control of plant diseases, and application of the strain and metabolites, so that the strain has ecological safety and industrial practicability, and has a wide application prospect.

The application provides a cold-tolerant Paenibacillus polymyxa for pond culture under low-temperature conditions, which has a preservation number of CGMCC No. 36068 and belongs to the technical field of beneficial microorganism screening and application. The cold-tolerant Paenibacillus polymyxa strain provided by the application has significant comprehensive application advantages, can maintain high growth activity and metabolic capacity in a low-temperature environment, and continuously plays a water purification function. The strain can efficiently degrade ammonia nitrogen and nitrous acid nitrogen in water, significantly improves the breeding water environment by promoting the nitrogen cycle process, and reduces the harm caused by nitrogen pollution. The strain has high safety, and even in the case of high concentration use, will not cause poisoning or stress response to breeding animals, and has good ecological safety and environmental friendliness.

This invention discloses a method for screening priority pollutants for key industry production sites. The invention uses a screening procedure based on "meta-analysis-multi-risk coupling-multi-objective decision-making" to screen pollutants requiring priority control in key industries. First, a meta-analysis is used to summarize and analyze pollutant studies of the target industries, initially screening out pollutants of high concern. Then, the soil-groundwater environmental chemical behavior analysis of these high-concern pollutants is integrated to calculate the risks to human settlement safety, drinking water safety, and ecological safety. The coupling degree of these three safety risks is calculated using a coupling coordination degree model, and the pollutants are ranked from highest to lowest to form a refined list of pollutants for the target industries. Finally, based on multi-objective decision-making recommendations from multiple parties, a list of pollutants requiring priority control is formed. This invention can more accurately identify priority pollutants in different key industry sites than existing methods, and can carry out scientific prevention and control work more efficiently from the source.