362 results about "Pollution soil" patented technology

The invention relates to the technical field of soil monitoring, in particular to a soil-groundwater pollution risk threshold dynamic adjustment method and system based on an environment model, and the method comprises the steps: collecting soil and groundwater monitoring data, constructing an environment model containing the soil pollution concentration, the groundwater pollution concentration and the pollutant migration rate, obtaining comprehensive pollution characteristic data, extracting main characteristics, and determining the contribution degree of each characteristic to risk assessment; calculating the initial weight of each feature according to the contribution degree, and obtaining a weight distribution scheme; calculating pollution risk values of the soil and the underground water in combination with the pollution load data and the weight values, and preliminarily setting a risk threshold value; monitoring pollutant concentration fluctuation data in real time, predicting a pollutant migration trend through a time sequence analysis algorithm, and obtaining a risk change prediction result; and combining the risk change prediction result and the environmental capacity constraint optimization risk threshold to obtain a dynamically adjusted risk threshold. According to the invention, accurate extraction of pollution characteristics and dynamic adjustment of weights are realized.

The invention provides a chemical restoration method for treating heavy metal-polluted terrain soil by ferromagnetic artificial nucleuses. In a ferromagnetic artificial nucleus soil restoration method, the ferromagnetic artificial nucleuses are applied to heavy metal-polluted soil; soil above a heavy metal pollution depth is overturned by cultivation equipment to uniformly mix with the ferromagnetic artificial nucleuses; and after heavy metal can be dispersed from the soil to the artificial nucleuses by a period of time, the soil containing the artificial nucleuses is overturned by using the cultivation equipment to increase the change of the artificial nucleuses contacting with other soil. After the soil overturning procedure is repeated by multiple times, the cultivation equipment provided with magnets can be used for separating the ferromagnetic artificial nucleuses, absorbed with the heavy metal, from the polluted soil; and the content of the heavy metal of the polluted soil is reduced due to shifting-out of the ferromagnetic artificial nucleuses, so that the purpose of soil restoration is gradually achieved.

The invention provides a soil pollution intelligent monitoring and early warning method based on coupling of source accurate prevention and control and enhanced natural restoration, and relates to the technical field of pollution hidden danger investigation and source tracing. According to the method, toxic and harmful substances are identified through data collection, interview and reconnaissance, a key monitoring list is constructed, troubleshooting and leakage detection are carried out, hidden danger judgment and grading are completed, a rectification strategy is matched to generate a bioremediation scheme, biological agent injection or biological pile construction is carried out on a remediation area, and remediation effect evaluation is carried out. And setting monitoring factors and arranging monitoring point positions after the restoration reaches the standard, collecting monitoring data and inputting the monitoring data into a monitoring and early warning system, and realizing abnormal alarm through threshold triggering. According to the method, a closed-loop process from source identification, restoration implementation to long-term monitoring is constructed, and the accuracy and early warning efficiency of pollution treatment are improved.

The invention relates to the technical field of agricultural planting, in particular to a method for preventing and treating watermelon fusarium wilt by using a green bactericide, which comprises the following steps: preparing the green bactericide which comprises the following components in percentage by mass: 18-25% of composite plant source active component consisting of water lettuce extract, enteromorpha polysaccharide and field horsetail flavone; 20%-30% of an antagonistic bacterium compound preparation, wherein the antagonistic bacterium compound preparation comprises bacillus pumilus and trichoderma; 38%-45% of a nano-carrier, wherein a chitosan-sodium alginate compound is used as an embedding material; and the balance of auxiliary components. Applying the green bactericide to watermelon plants; through component optimization and a synergistic effect, compared with the prior art, the composition has the remarkable advantages that the safety is high, all the components are from natural plants or microorganisms, no chemical pesticide residue exists, the composition is healthy to human bodies and environmentally friendly, and the problems of drug resistance and soil pollution caused by chemical agents can be avoided.

The present application relates to the technical field of contaminated soil cleaning, and particularly relates to a cleaning equipment for treating soil pollution, which comprises a base plate, a containing box is fixed on the top of the base plate, a metal mesh bag is fixed in communication at the bottom of the containing box, squeezing mechanisms are arranged around the metal mesh bag, the squeezing mechanism comprises a lead screw, an L-shaped rod one is in screw transmission on the outside of the lead screw, and a squeezing plate is fixed at one end of the L-shaped rod one. In the present application, the contaminated soil is contained by using the metal mesh bag, the two squeezing plates arranged relatively around the metal mesh bag can successively and staggeredly squeeze the soil, which is convenient for crushing the contaminated soil, makes the soil fully contact with the leaching agent for purification, and also facilitates fully crushing the soil to make it fall to the bottom of the chemical solution tank through the mesh holes of the metal mesh bag, the impurities such as plastics, stones and packaging bags which are not easy to be squeezed and crushed are left in the metal mesh bag, and the impurities in the contaminated soil are cleaned out.

The invention discloses a soil pollution region division method and system, and the method comprises the steps: generating a first pollution feature layer through fusing historical pollution data and remote sensing spectral features, and generating a second pollution concentration layer based on the interpolation of an anisotropic pollution diffusion model; analyzing whether the spectral characteristics of the pixels indicate pollution or not by using the trained discrimination model, and marking the pixels as core, doubtful points or clean pixels in combination with concentration standard exceeding judgment; the diffusion relevance between the doubtful point area and the adjacent core area is judged by calculating the boundary migration feature similarity; according to a correlation result, fusing the highly correlated regions according to a pollution diffusion fusion rule to form a pollution diffusion region; and finally, carrying out optimization aggregation and risk grading on all pollution areas based on a preset rule, and generating a final soil pollution area division map with risk grades. According to the invention, automatic and high-precision identification and division of the soil pollution area are realized.

The invention relates to the technical field of particulate matter source analysis, and discloses a refined source analysis method and system.The method comprises the steps that a plurality of pollution sources and dust falling particulate matter sampling points are determined according to soil pollution distribution of a target area and an atmospheric pollution source survey result, by collecting single particle mass spectrum data of pollution sources, sampling points and receptors, constructing a mass spectrum library and combining an ART-2a algorithm and a deep learning model, the heavy metal pollution contribution proportion is accurately analyzed and traced to specific discharge ports of enterprises, and the problem that specific pollution enterprises and working sections cannot be positioned in the prior art is solved. According to the method, a pollution source and an environment receptor are sampled and analyzed by utilizing a single-particle mass spectrometry technology aiming at atmospheric dust fall particles in soil, and the heavy metal in the atmospheric dust fall particles in the soil is finely traced to specific enterprises and working sections by analyzing the heavy metal, so that a fine technical support is provided for soil heavy metal pollution management and control.

The invention relates to the technical field of soil pollution investigation and environment monitoring, and discloses a soil pollution low-carbon investigation system, which comprises a data acquisition and preprocessing module for acquiring site multi-source heterogeneous data and performing data quality evaluation and preprocessing; the feature extraction and fusion module is used for performing feature extraction and feature fusion; the pollution prediction and uncertainty quantification module is used for carrying out full-field pollution prediction and uncertainty quantification; the sampling optimization module is used for carrying out sampling value evaluation and gradient analysis; the carbon footprint monitoring module is used for carrying out carbon emission calculation based on an identification result and carrying out real-time monitoring on the carbon footprint; the path planning module is used for planning a sampling path and deploying an edge reasoning system to carry out real-time dynamic path decision; the scheme decision-making module is used for generating investigation candidate schemes and selecting an optimal scheme according to decision-making rules; according to the method, a multi-scale depth feature extraction and cross-modal fusion technology is adopted, and the collaborative value of multi-source heterogeneous data is fully mined.

The invention discloses a comprehensive evaluation method for soil pollution in a decommissioned uranium mine area, relates to the technical field of environmental evaluation, and solves the technical problem that a soil pollution evaluation method is not clear due to lack of soil pollution data in an existing decommissioned uranium mine area. According to the technical scheme, the method is characterized in that the influence of radionuclides, environmental ecology, environment and biological effects in the decommissioned uranium mine area soil on the soil quality is comprehensively considered, key influence factors influencing the uranium mine area soil quality can be screened out, and the problems that existing data is lack, and a research method is not clear are solved; and a basis is provided for subsequent sustainable utilization of soil and environmental health.

A recommendation method and device for investigation of soil pollution risk in enterprises comprises starting from a full-aperture enterprise list, screening and integrating a list of key industrial e

The utility model belongs to the technical field of planting pots, and particularly relates to a breathable liquid collection planting pot which comprises a pot body and a separation layer plate arranged on the pot body, the pot body is provided with a pot cavity, the separation layer plate is clamped at the bottom end in the pot cavity, the separation layer plate is provided with a supporting column, the bottom end of the pot body is provided with a bottom plate part, and the supporting column is supported on the bottom plate part. A layer gap is reserved between the separation layer plate and the bottom plate part, and the separation layer plate is provided with a plurality of water through holes; a plurality of air holes are formed in the bottom plate part, the water through holes and the air holes are staggered in position, water retaining parts are formed in the positions, corresponding to the air holes in a one-to-one mode, of the bottom plate part in a protruding mode, water outlet holes are further formed in the bottom plate part, the water through holes, the layer gaps and the water outlet holes form water flowing channels, and the water retaining parts prevent a solution from flowing into the air holes. The redundant solution is collected to the water outlet hole along the bottom plate part at the interlayer gap, is guided out through the water outlet hole and is collected and treated, so that the liquid fertilizer is prevented from directly flowing out through the air holes, the soil pollution risk is reduced, and the protection effect on the ground is improved.

The invention provides a method and system for dynamically monitoring soil pollutants based on an unmanned aerial vehicle, and relates to the technical field of soil pollution abatement, and the method comprises the steps: constructing a continuous monitoring network, setting the route weight of each route in the continuous monitoring network in different environments, and collecting the average soil pollutant pollution concentration of each route in the corresponding environment; state judgment is carried out on the collected average soil pollutant pollution concentration of each route in the corresponding environment, and the soil pollutant pollution state of the corresponding area is obtained; based on a visualization technology, carrying out visual rendering on pollution states of soil pollutants in different areas in the continuous monitoring network; and carrying out pollution risk assessment when an abnormal soil pollutant pollution state occurs in the continuous monitoring network, and constructing a soil pollutant pollution diffusion model according to a pollution risk assessment result to obtain a corresponding pollution risk processing scheme.

The invention relates to an indigenous plant community configuration and dynamic optimization system suitable for a combined pollution site, and belongs to the technical field of environmental ecological restoration and soil pollution treatment. Comprising an indigenous plant resource database module, a pollution site information acquisition and processing module, a plant community intelligent configuration module, a real-time monitoring and data feedback module, a dynamic optimization decision module and a visual interaction module. According to the system, intelligent screening and community construction of indigenous plants are achieved through multi-source data fusion and a multi-target optimization algorithm, a sensor network and a machine learning model are combined to conduct real-time monitoring and dynamic regulation and control on the remediation process, the remediation efficiency, community stability and ecological safety of a heavy metal and organic pollutant combined pollution site are improved, and the remediation cost is lowered. And full-period intelligent, low-cost, green and sustainable ecological restoration management is supported.

The application discloses an online monitoring method and device for groundwater and soil pollution and a medium, and belongs to the technical field of environmental protection. The method comprises the following steps: collecting various data of groundwater and soil based on a preset data collection module; converting the various data into a unified data set based on a preset gateway protocol conversion algorithm in the data collection module, and uploading the unified data set to a data transmission module; obtaining an industrial internet identifier based on a preset active identification algorithm in the data transmission module, and transmitting the unified data set to a groundwater and soil pollution monitoring platform; processing the unified data set based on a preset pollution judgment algorithm in the groundwater and soil pollution monitoring platform, so as to determine the pollution condition of the region where the data collection module is located; and when there is pollution in the region where the data collection module is located, determining the enterprises that need to be rectified based on a preset groundwater flow line map and the pollution condition. The application can timely understand the pollution condition of groundwater and soil through the above method.

The invention relates to the field of soil pollution remediation, and discloses a remediation device for soil heavy metal pollution remediation and a using method thereof.The remediation device for soil heavy metal pollution remediation comprises an acid mist absorption tower which is arranged on the top face of the ground; a purifying assembly, a crushing assembly, a screening assembly, a humidifying assembly, a transferring assembly, a stirring assembly and a protecting assembly are arranged on the ground. According to the remediation method for soil heavy metal pollution remediation, pollution in soil is effectively detoxified through screening and crushing, reduction reaction, deacidification, neutralization reaction, dehydration and re-burying, the original pollution in a soil leachate is larger than or equal to 2000 mg / kg, the total chromium content is larger than or equal to 10000 mg / kg and is reduced to be smaller than or equal to 3 mg / L, the total chromium content is smaller than or equal to 9 mg / L, Ni is smaller than or equal to 50 mg / L, meanwhile, the pH ranges from 6 to 9, and the remediation effect is good. And acid mist generated in the reduction reaction process can be pumped into the acid mist absorption tower by the anti-corrosion induced draft fan, is neutralized by alkali in the acid mist absorption tower, and is discharged after reaching the discharge standard through the discharge pipe.

The application discloses a screening device for soil pollution treatment, and relates to the technical field of soil screening, which comprises a bottom plate and a vibrating plate, the upper portion of the bottom plate is fixedly connected with a top plate, the side of the top plate close to the bottom plate is movably connected with a second rotating shaft, a soil grinding output assembly is arranged on the top plate and the second rotating shaft, the rotation of the second rotating shaft drives the grinding plate to move back and forth in the vertical direction, the movement of the grinding plate grinds the soil, an adjustable amplitude screening assembly is arranged on the top plate and the vibrating plate, the rotation of the rotating disc drives the pulling rod to rotate, the movement of the moving block drives the pulling rod to move, the movement of the pulling rod adjusts the amplitude of the vibrating plate in the vertical direction, a screening box is arranged on the outer side of the vibrating plate, a storage box is arranged on the outer side of the bottom plate, the vibration of the vibrating plate with different amplitudes drives the screening box to move, and the vibration of the screening box screens the soil to the inner side of the storage box.

The invention belongs to the field of polluted soil remediation materials in agricultural environment technology, and particularly discloses a preparation method and application of a composite material for adsorbing and degrading polycyclic aromatic hydrocarbon in soil. The preparation method of the composite material comprises the following steps: co-pyrolyzing the oily sludge and the straws to generate pyrolytic carbon, and loading humic acid to obtain the composite material. The pyrolytic carbon humic acid composite material prepared by the invention is used for adsorbing and degrading polycyclic aromatic hydrocarbon in soil, compared with only pyrolytic carbon or humic acid, the composite material has a better degradation effect, the material preparation process is simple and efficient, the cost is low, and meanwhile, the purposes of improving soil and treating waste with waste are achieved.

The invention provides a soil detection device capable of deeply sampling soil, and relates to the technical field of soil detection.The soil detection device comprises a detection probe, supporting plates are arranged at the two ends of the detection probe, bases are fixedly connected to the lower ends of the two supporting plates, a connecting plate is arranged between the two supporting plates, and threads are arranged on the surface of the detection probe; the connecting plate is in threaded sleeve connection with the detection probe, the upper end of the connecting plate is provided with a U-shaped plate, a worker places the device at a position needing to be detected and starts the motor at the moment, the detection probe gradually descends due to the fact that the detection probe is in threaded sleeve connection with the connecting plate, and when the detection probe gradually descends, the U-shaped plate is arranged at the upper end of the U-shaped plate. The device can be smoothly inserted into the deep part of soil by virtue of the sharp structure of the device. As the detection probe continuously goes deep into soil, soil samples can be obtained from soil layers with different depths, deep soil sampling is achieved, the problem that a soil detection device cannot comprehensively evaluate the soil pollution degree is solved, and the evaluation accuracy is improved.

The invention discloses a method for strengthening three-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction in rice field soil through sulfurized zero-valent iron, and belongs to the technical field of rice field soil pollution remediation. The sulfurized zero-valent iron (S-ZVI) is prepared according to the sulfur-iron ratio of 0.1-0.2; the S-ZVI is mixed with the contaminated soil, and rice is cultivated in cooperation with a specific fertilization and irrigation scheme. According to the method for strengthening the triple-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction in the rice field soil through the sulfurized zero-valent iron, by optimizing preparation and application of the sulfurized zero-valent iron, under the synergistic effect of chemical reduction and microbial degradation, the triple-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction is expected to be achieved, and the effect of strengthening the rice field soil chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction is achieved. And an important means is provided for degradation of antibiotics in rice field soil.

The invention relates to the technical field of regional soil pollution health risk assessment, in particular to a regional soil pollution health risk assessment method based on POI data, and the method comprises the steps: firstly obtaining and preprocessing multi-source heterogeneous data, and constructing a POI spatial database; adopting a Kriging spatial interpolation method to generate a pollutant concentration spatial distribution grid map layer; then combining kernel density estimation and dynamic weight correction to construct a population activity intensity index surface; dynamically generating an exposure evaluation unit, and calculating the multi-path daily average exposure dose of people of different ages; and finally, quantifying the multi-path health risk, generating a risk level distribution map, and identifying the dominant POI category of the high-risk area. According to the method, deep fusion of multi-source data is realized, the association between population activity characteristics and pollution exposure is accurately depicted, the evaluation accuracy and suitability are improved, and a scientific decision basis is provided for pollution prevention and control and risk management and control.

The utility model provides an electric ultrasonic-assisted PRB in-situ microbial remediation device for soil and underground water composite pollutants, which comprises a device main body and a deionized water conical flask, the deionized water conical flask is communicated with a peristaltic pump through a water inlet pipeline, and the water outlet end of the peristaltic pump is communicated to one side of the device main body through the water inlet pipeline. A water outlet pipeline is arranged on the other side of the device main body, the water outlet pipeline is communicated to the recovery liquid conical flask, the device main body comprises a PRB remediation device, an electric remediation device and an ultrasonic remediation device, and combined contaminated soil is arranged in the device main body. The PRB remediation device comprises a PRB first filling material layer and a PRB second filling material layer which are arranged at the downstream of the composite contaminated soil, the ultrasonic remediation device comprises an ultrasonic vibration rod arranged in the PRB first filling material layer, and the ultrasonic vibration rod is connected with an ultrasonic module power supply. According to the utility model, the physical-chemical-biological combined effect is utilized, so that the pollutant mass transfer repair efficiency is improved.

The utility model discloses a soil pollution abatement and remediation device which comprises a frame body, a transversely-arranged supporting plate is arranged at the bottom end of the frame body, moving wheels used for moving are arranged at the bottom of one end of the frame body, a liquid storage tank connected with the frame body is arranged above the supporting plate, a liquid inlet hopper is arranged at the top of the liquid storage tank, and the bottom end of the liquid storage tank is communicated with a water pump. And one end of the drainage pipe is connected with a spraying mechanism. The liquid medicine in the liquid storage tank is sprayed out through the spraying mechanism through the water pump, and soil remediation liquid spraying remediation work on soil is achieved. And one end of the circular ring can drive the adjusting plates to move in the same direction or back to back, so that the spraying angle of each spray head is adjusted, the spraying range of the repairing liquid is widened, and the repairing efficiency is improved.

The invention belongs to the technical field of agricultural equipment, and relates to a crushing and pesticide mixing device for soil pollution remediation, which comprises a movable frame, a connecting seat, two mounting plates, a crushing mechanism, a fixed shaft, an avoiding groove, a plurality of pesticide feeding holes, a transmission cylinder, a plurality of groups of spray pipes, a plurality of spray holes and a pesticide feeding mechanism, and the rotating mechanism is used for driving the transmission cylinder to drive the multiple sets of spraying pipes to rotate, liquid medicine is fed into soil of different depths, and meanwhile the soil is stirred. The crushing mechanism is arranged at the front end of the movable vehicle frame, the pesticide spraying mechanism composed of the fixed shaft, the transmission cylinder and the multiple sets of spraying pipes is arranged at the front end of the movable vehicle frame, soil crushing and pesticide spraying can be conducted firstly, the multiple sets of spraying pipes are driven to rotate through the rotating mechanism, liquid pesticide is fed into soil of different depths, and meanwhile the soil is stirred; and the soil and the medicine can be mixed more uniformly, different medicine concentrations in the soil with different depths are avoided, soil remediation is accelerated, and the soil remediation effect is improved.

The invention relates to a soil environment remediation type charcoal-based organic fertilizer and a preparation method thereof, and belongs to the technical field of agricultural resources and environment. The organic fertilizer is prepared by taking charcoal as a core carrier and cooperating with excrement organic matters, a compound microbial agent, an inorganic mineral additive and a nutrition synergistic component through a multi-stage compatibility process. A triple remediation mechanism of gradient temperature pyrolysis modification of biochar, functional synergistic coupling of all components and soil heavy metal passivation-fertility improvement-structure improvement is innovatively designed. Field tests show that the effective-state Cd reduction rate of the product in Cd-polluted soil reaches up to 44.13%, the corn yield is remarkably increased, and meanwhile the use amount of chemical fertilizer is reduced by 20% or above.

The utility model discloses a soil pollution abatement device based on microbial remediation technology, comprising: a main body unit comprising a work box and a conveying assembly, the work box is symmetrically provided with a rectangular opening and two connecting ports, the conveying assembly penetrates through the two connecting ports, and the conveying assembly is provided with a placing groove body; and the repairing unit comprises a liquid storage box, a connecting box and a mounting frame, and the liquid storage box is fixedly mounted on the upper end face of the working box. The harrow rod teeth are inserted into soil in the containing groove body, repairing liquid medicine is discharged from the liquid outlet holes, the gear motor is started, the output end of the gear motor drives the threaded rod to rotate, the threaded rod drives the moving rod to move through the threaded sleeve, the moving rod drives the mounting frame and the harrow rod teeth to move, and therefore the harrow rod teeth can turn over the soil in the containing groove body; and therefore, the remediation liquid medicine can be sprayed on the soil at the lower end, and the remediation effect on microorganisms in the soil is improved.

The application discloses an injection device for soil pollution treatment fluid, which comprises a pressing pipe, a soil taking cavity and a grouting pipe, the grouting pipe and the soil taking cavity are arranged in the pressing pipe, the grouting pipe is used for injecting the soil pollution treatment fluid into the soil, and the soil taking cavity is provided with a push rod, and the push rod is used for backfilling the soil in the soil taking cavity into the pressing hole.

The invention belongs to the technical field of pollution control, and relates to a soil pollution treatment method and system utilizing microbial remediation, and the method comprises the following steps: obtaining target remediation functional microbial agent genome and to-be-remedied site native microbiome metagenome data, and constructing a biological information basic data set; processing the data, and constructing an interaction network model containing microbial inoculum and native species nodes based on metabolic complementarity and ecological niche overlapping degree simulation calculation; analyzing the network topology structure to screen a key native co-generation node set, and generating a growth promotion demand map; determining a targeted metabolism regulation factor with targeted selectivity based on atlas reverse matching, and generating a targeted signal instruction; executing the instruction and putting a microbial agent, activating a synergistic node in situ and coupling with the microbial agent to construct a degradation function network; the method solves the problem that the colonization efficiency of the exogenous functional microbial inoculum is not high due to lack of accurate regulation and control on the native microbial community.

The invention discloses a soil sampling device in soil pollution prevention and treatment, and relates to the technical field of soil sampling, the soil sampling device comprises a bottom plate, a supporting assembly, a sampling assembly and a push-out assembly, and the supporting assembly is fixedly connected to the top of the bottom plate. According to the soil sampling device disclosed by the invention, when soil sampling work is carried out, the elastic rope is driven to rotate along with rotation of the gear ring, so that the elastic rope can carry out surrounding cutting on the soil in the sleeve at the moment, the sampled soil in the sampling pipe and the sleeve is completely separated from the external soil, and the sampled soil is located in the sampling pipe; at the moment, the sampled soil is in a vertical whole-section state, through the arrangement that the sampling pipe vertically moves downwards to be inserted into the soil and the elastic rope rotatably cuts the soil, the sampling pipe can take out a section of relatively complete cylindrical soil sample, and the original layering state of the soil cannot be damaged, so that in the soil detection and analysis process, the sampling efficiency is improved; and the obtained data information is more accurate.

The invention provides a soil pollution accumulation prediction method based on nesting of multiple self-correlation scales, and the method comprises the steps: analyzing a multi-scale nested space structure of soil pollutants through a semi-variation function, determining a block gold effect, an offset abutment value and a range parameter corresponding to each scale, and calculating the contribution degree of the block gold effect, the offset abutment value and the range parameter to overall variation; in combination with original sampling data, identifying main driving factors of pollutant accumulation under different scales, and comprehensively evaluating and sequencing the importance of the factors by adopting various quantitative analysis methods; constructing a cross-scale prediction model set, taking each scale dominant driving factor as an input feature, carrying out modeling by using multiple basic models, screening and optimizing the models through clustering and a multi-objective optimization algorithm, and forming an integrated learning framework of dynamic weight distribution; and carrying out weighted fusion on prediction results according to contribution degrees of all scales, generating a soil pollutant spatial distribution prediction map reflecting multi-scale nested features, and outputting the prediction map through a visual tool, thereby improving prediction precision and spatial interpretation capability.

The invention provides a bacillus velezensis QT1 and an application of the bacillus velezensis QT1. The classification name of the bacillus velezensis is bacillus velezensis QT1, and the bacillus velezensis is preserved in the China Center for Type Culture Collection on November 12, 2025, the preservation address is Wuhan University, Wuhan, China, and the preservation number is CCTCC NO: M 20252531. The strain shows remarkable biological control efficiency, realizes effective control on various plant pathogens, and can prevent and treat tomato bacterial wilt and tea tree anthracnose. In addition, the bacillus velezensis QT1 can also effectively kill root-knot nematodes (especially meloidogyne incognita). When the strain is applied to plant cultivation, the growth of various pathogens can be remarkably inhibited, the health and yield of crops are improved, the strain is environment-friendly, the use of chemical pesticides is reduced, soil pollution is avoided, and the development requirement of sustainable agriculture is met.