35 results about "Aeolian processes" patented technology

The invention discloses an arid region soil wind erosion prevention and control vegetation optimal configuration system, and relates to the technical field of arid region ecological restoration and soil wind erosion prevention and control. The system comprises the following components: a plant organ wind erosion rate determination module, a vegetation wear resistance database module, a wind erosion strength partitioning module, a vegetation gradient configuration execution module and a dynamic monitoring and feedback module. According to the invention, through the wind erosion and abrasion intensity partitioning module, the wind speed, the sand grain density, the terrain, the altitude and the seasonal dynamic change factors are comprehensively considered, an improved wind erosion intensity index algorithm is adopted, the region is accurately divided into strong, medium and weak abrasion regions, and the accurate partitioning provides a scientific basis for the subsequent vegetation configuration, so that the vegetation configuration can adapt to local conditions, and the vegetation configuration efficiency is improved. The vegetation gradient configuration execution module configures plants with corresponding wear-resistant grades according to regions with different abrasion strengths, and meanwhile, the vegetation gradient configuration execution module reasonably configures single-species or multi-species mixed vegetation based on a wear-resistant matching degree algorithm and a species complementarity algorithm.

The invention discloses a photovoltaic electric field sand and dust meteorological gradient three-dimensional monitoring and early warning system. According to the system, a plurality of gradient micro-meteorological station networks are arranged in a peripheral area, an edge area and a central area of a photovoltaic electric field, wind speed, wind direction, air temperature, humidity, air pressure, precipitation and radiation are measured at different heights, and soil temperature, humidity and conductivity sensors are buried; piezoelectric wind erosion sensors with different heights from the ground are arranged on the ground surface, and the sensors have particle counting, kinetic energy and single particle energy output and are provided with adjustable gains. The system is also equipped with a multi-rotor unmanned aerial vehicle to measure meteorological and dust concentration data at different heights above the photovoltaic panel. All data are recorded in a unified mode through the collecting unit and processed through a fusion algorithm, the intelligent early warning processing unit determines and calculates the dust damage degree through machine learning dynamic weight according to an improved damage index, and early warning is triggered when the index exceeds a threshold value. According to the invention, three-dimensional monitoring and intelligent early warning of sand and dust activities of the photovoltaic electric field can be provided.

The invention belongs to the technical field of ecological environment restoration, and particularly relates to an arid region gobi gravel curtain layer reconstruction method. Gobi in the arid region is subjected to earth surface leveling, gravel layer paving and saline pressing in sequence, and a gravel curtain layer is obtained. The gravel curtain layer earth surface reconstructed through the method has no obvious landscape difference with the surrounding natural gravel curtain layer earth surface, salt crust and gravel are tightly bonded together to form a hard soil protection layer, the earth surface can be effectively solidified, and soil wind erosion can be resisted.

The invention relates to the technical field of agricultural ecological environmental protection, and discloses a desertification farmland soil wind erosion monitoring system which comprises a controller, a wind direction self-adaptive sand collection unit and a multi-dimensional monitoring unit, and the wind direction self-adaptive sand collection unit and the multi-dimensional monitoring unit are electrically connected with the controller. The wind direction self-adaptive sand collecting unit comprises a fixed pile, a rotating base is arranged on the fixed pile, a main rod is arranged on the rotating base, a wind direction sensing assembly is arranged at the top of the main rod, multiple stages of sand collecting channels are uniformly arranged in the circumferential direction of the main rod, the inlet heights of the sand collecting channels are sequentially increased in the vertical direction, and a layered collecting box is arranged at the end, away from the inlet, of each sand collecting channel; the multi-dimensional monitoring unit comprises a near-surface wind speed monitoring assembly, a soil loss amount detection assembly and an environmental parameter acquisition assembly, the near-surface wind speed monitoring assembly comprises at least three wind speed sensors, and the heights of probes of the wind speed sensors are in one-to-one correspondence with the heights of inlets of the sand collection channels. According to the system, accurate, efficient and long-term acquisition of data such as the soil wind erosion amount and the particle structure of the desertification farmland is realized.

The invention discloses a desert region water and soil resource allocation method which comprises the following steps: constructing a land suitability comprehensive evaluation model based on soil salinization degree, wind erosion intensity, underground water level and vegetation survival rate indexes, calculating a land suitability index DLI and performing land quality grading; considering the characteristics of high evaporation, strong leakage and salt leaching water demand of the desert region, establishing a water resource supply and demand balance model, and calculating the water resource bearing capacity of each subarea; establishing a multi-objective optimal configuration model by taking maximization of wind prevention and sand fixation effects, maximization of vegetation survival rate and minimization of economic investment as objectives, and solving an optimal configuration scheme by adopting an improved genetic algorithm; and establishing a configuration effect evaluation index system for scheme verification. Water and soil resources in the desert region can be scientifically and reasonably allocated, the resource utilization efficiency is improved, and technical support is provided for ecological management of the desert region.

The invention discloses an in-situ structure stabilization sand fixation system and a construction method and application of the in-situ structure stabilization sand fixation system.The in-situ structure stabilization sand fixation system comprises an in-situ quicksand base layer and a gravel sand fixation layer covering the surface of the in-situ quicksand base layer; wherein the gravel sand stabilization layer contains a plurality of relatively independent gravel-shaped structural units, and each gravel-shaped structural unit is formed by combining a plurality of sand grains. According to the method, in-situ modification and recombination are carried out on particles on the surface layer of the quicksand, under the condition that an exogenous gravel covering structure is not introduced and an independent covering or blocking component is not arranged, a gravitated sand stabilization layer with stable structural characteristics is constructed on the surface of the quicksand, and therefore starting and migration of sand grains under the wind action are restrained. According to the structure, the wind erosion resistance of the earth surface is improved, meanwhile, the dependence on external materials is remarkably reduced, and the engineering feasibility is improved from the aspects of material sources and construction organizations.

The application discloses a kind of multi-species cooperation's desert vegetation reconstruction method and system, belong to ecological restoration field, based on temperature and humidity change, fine particle soil proportion and wind erosion response lagging behind identification potential wind erosion-thermal response stress coupling area;Microclimate data is collected to construct water vapor dispersion tensor matrix;According to tensor matrix configuration pioneer plant and symbiotic plant combination, and inoculate dormant state mycorrhizal spore, form basic repair unit;Humidity control induction layer is constructed in its periphery, and bacteria proliferation simulation is carried out;Secondary wind erosion blocking structure is constructed by introducing structure induction type plant;Further introduce associated behavior insect and induce plant and fungi-root mutual feeling adjustment device, construct ecological interaction system;Finally output self-maintenance ability analysis index, guide multi-unit parallel repair;The application realizes microclimate regulation, rhizosphere symbiosis, wind erosion protection and the cooperative reconstruction of ecological stability, is suitable for wind erosion strong, drought heavy, microhabitat broken extreme degradation area.

This invention relates to the field of wind and sand control technology, and more particularly to a method for monitoring and managing wind erosion deformation in wind and sand control projects. The method includes: establishing monitoring points for the engineering status of the control project based on its geometric shape and the direction of the sand ridge line; constructing a structural deformation sub-model and a surface morphology sub-model based on historical data from these monitoring points; acquiring sets of structural deformation parameters and surface morphology parameters based on the monitoring points; and determining the first degree of agreement between the output of the structural deformation sub-model and the structural deformation parameter set, and the second degree of agreement between the output of the surface morphology sub-model and the surface morphology parameter set, respectively. This invention enables real-time monitoring of the status of the control project by establishing monitoring points, preventing the need for large-scale rework due to prolonged wind and sand erosion and untimely treatment, which would otherwise affect wind and sand control efforts at the project's installation location.

The invention belongs to the technical field of performance test of reinforcing agents, and provides an earthen ruins reinforcing agent comprehensive performance standardization test and adaptability evaluation method, which comprises the following steps: S1, collecting a representative undisturbed soil sample from an earthen ruins site to be reinforced; s2, measuring the color difference change of the sample before and after reinforcement by using a full-automatic color measurement colorimeter, and irradiating for a fixed time length under a high-pressure mercury lamp; s3, the samples before and after reinforcement are completely soaked in water, the disintegration condition is recorded, and the disintegration-resistant time is assess.The representative soil samples are collected from the site to be prepared into the samples of different specifications, and the color change and ultraviolet ray resistance test, the humidification disintegration test, the unconfined compressive strength test, the freeze-thaw cycle test and the wind tunnel erosion test are conducted in sequence; and quantitatively evaluating the influence of the reinforcing agent on the appearance stability, water resistance, mechanical property, freeze-thaw resistance and wind erosion resistance of the soil body, introducing an environmental adaptability correction coefficient, and finally obtaining a comprehensive adaptability grade through a weighted scoring system.

This invention discloses an experimental device for simulating combined rainfall-wind erosion-freeze-thaw erosion slopes. It includes an experimental chamber and a door mounted on its front side via hinges. Locks are embedded in the right side of the front and rear sides of the door. This invention, through a series of structural features, allows personnel to flexibly adjust the slope and inclination of the soil carrier plate according to the slope's gradient and direction. This better simulates the actual slope's gradient and direction during experiments, avoiding significant deviations from the actual slope condition that could lead to large experimental errors. It is easily adaptable to experiments on different types of slope soils, improving simulation effectiveness, applicability, and flexibility. It assists personnel in conducting freeze-thaw experiments, timed automatic wind erosion experiments, and timed automatic water spraying experiments on slope soils. Furthermore, it helps personnel filter and collect dust and sand, reducing the direct and large-scale dispersion of dust and sand that could pollute the laboratory environment or affect the health of experimental personnel and the normal operation of experimental instruments.

The invention provides a sand area ecological restoration dynamic planning system and method based on multi-source data fusion, relates to the technical field of ecological restoration and computer simulation, and aims to solve the problems of existing restoration model decoupling and evaluation index apparent. A physical state space model coupling wind erosion dynamics and a soil hydrological process is constructed, and the core of the model is to quantify interaction among sand amount, moisture and roughness by using a dynamic state transition matrix; calculating a landform process entropy increase rate based on a physical state space model, and using the entropy increase rate as a physical risk index to identify a restoration priority; and finally, matching and outputting differentiated repair schemes according to the priorities. According to the method, through the coupling model and the physical risk index, quantitative evaluation of the degeneration risk of the sand area and accurate configuration of the restoration resources are realized, and the scientificity and input-output benefits of restoration planning are improved.

The invention provides a soil wind erosion-sand dust release model construction method based on a physical mechanism, and the method comprises the steps: constructing the critical friction wind speed of different sand grains, and introducing the roughness and soil humidity to correct the critical friction wind speed. Calculating the horizontal jump flux under a single particle size condition by combining the critical friction wind speed, and performing weighted integration by combining the soil particle size distribution to obtain the horizontal jump flux under the mixed particle size. Furthermore, in combination with the mixed particle size horizontal jump flux, the vertical dust release flux is calculated, and an emission source item consistent with the atmospheric mode particle only interval is output. In the scheme, the roughness, the soil humidity, the soil particle size distribution and other key underlying surface parameters are converted into physical constraint conditions, and the influence of the particle size distribution and the underlying surface state temporal and spatial change on the wind erosion rate and dust release is fully considered, so that the systematic deviation introduced by representative particle sizes and constant quantization parameters is reduced; therefore, the simulation precision can be improved, and the uncertainty of a simulation result is reduced.

The application provides a RegCM model optimization method coupled with a WEDEM sand raising scheme, inherits original input variables of an original DEAD scheme of the RegCM model, and obtains newly added input variables obtained through soil texture classification mapping; a calculation kernel of the WEDEM sand raising scheme is used to replace a calculation kernel of an original DEAD scheme of a CLM4.5 sand dust release module in the RegCM model; the original input variables and the newly added input variables are jointly input into the calculation kernel of the WEDEM sand raising scheme, and effective sand raising area fractions, vertical sand dust fluxes in particle size intervals and total vertical sand dust fluxes are output under the condition of keeping consistent with an output interface of the original DEAD scheme. The scheme improves the simulation precision of sand dust release, reduces the uncertainty of the model, has good scalability, and is suitable for various application scenarios such as arid region soil wind erosion-sand dust release risk assessment and wind prevention and sand fixation engineering benefit assessment.

The invention relates to the technical field of environment monitoring, in particular to a desert wetland underground humidity and surface wind erosion automatic monitoring method and device, and the device comprises a temperature change rate prediction module, an FIFO buffer preloading module, a hardware trigger direct connection module and a signal synchronization alignment circuit. A temperature compensation value is predicted through a recursive least square method, and humidity signal compensation and sampling alignment of sub-millisecond level delay are realized in combination with a hardware-level synchronization mechanism. According to the application, the problem of data link breakage caused by thermal response lag and MCU interruption delay in an extreme environment by a traditional monitoring means can be solved, the timeliness and precision of a monitoring system are remarkably improved, and the method is suitable for long-term stable monitoring of complex environments such as desert wetland and the like.

The invention discloses a multi-species synergistic desert vegetation reconstruction method and system, and belongs to the field of ecological restoration, and the method comprises the steps: recognizing a potential wind erosion-thermal change stress coupling region based on temperature and humidity change, fine-grained soil proportion and wind erosion response hysteresis; collecting microclimate data to construct a water vapor gathering and scattering tensor matrix; configuring a pioneer plant and symbiotic plant combination according to the tensor matrix, and inoculating dormant mycorrhizal spores to form a basic restoration unit; a humidity control induction layer is constructed on the periphery of the culture medium, and flora proliferation simulation is carried out; introducing a structure induction type plant to construct a secondary wind erosion blocking structure body; further introducing an associated behavior insect to induce a plant and fungus-root mutual inductance adjusting device to construct an ecological interaction system; and finally, outputting a self-sustaining capability analysis index, and guiding multi-unit parallel repair. According to the method, collaborative reconstruction of microclimate regulation and control, rhizosphere symbiosis, wind erosion protection and ecological stability is achieved, and the method is suitable for extremely degraded areas with strong wind erosion, heavy drought and broken microhabitat.

The invention relates to the technical field of soil organic carbon extraction, in particular to a graded extraction and matrix purification method for soil organic carbon in a wind erosion product, which comprises the steps of sample pretreatment, graded extraction, multi-stage matrix purification, freeze concentration and collection, and post-treatment. The invention provides a soil organic carbon graded extraction and matrix purification method which is high in adaptability with wind erosion products, high in extraction efficiency and high in extraction purity. The combined technology of gradient screening, low-temperature grinding and density liquid pre-separation is adopted, and the characteristics that a wind erosion product has many sand grains and organic carbon is prone to oxidation loss are precisely adapted; an active-semi-active-stable three-stage extraction system is constructed, so that the extraction efficiency of organic carbon is improved, and the detection requirements of carbon cycle research in a wind erosion region on different active organic carbon components are met; and in multi-stage matrix purification, step-by-step removal of sand grains, metal ions and salt residues is realized, the purity of an extracting solution is remarkably improved, and the method has a wide application prospect.

The application discloses a method for predicting meteorological dust accumulation cleaning requirements of a photovoltaic module based on a numerical mode, selects a SSP-RCP scenario and future simulation data of multiple global climate modes and historical precipitation data from a CMIP6 data set; for a target region, the future and historical precipitation of each grid point is calculated; then, the annual effective deposition of each grid point is calculated, the core of which is to correct the conversion of vertical deposition to the inclined surface of the photovoltaic module through the effective deposition coefficient, and to quantify the wind loss through the wind erosion correction; finally, based on the annual effective deposition, the theoretical annual cleaning frequency of the photovoltaic module of each grid point is calculated, thereby providing a quantitative basis for differentiated operation and maintenance.

The invention belongs to the technical field of soil wind erosion simulation equipment, and provides a wind erosion simulation experiment device, which comprises a simulation wind tunnel main body with one end provided with a wind supply regulation and control assembly and the other end provided with an air outlet; the experiment bed is arranged in the simulation wind tunnel body and used for bearing a soil sample, and an angle regulation and control assembly is arranged between the experiment bed and the simulation wind tunnel body and used for adjusting the angle, facing the wind supply regulation and control assembly, of the experiment bed; the sand collection metering assembly comprises a plurality of sand collection boxes, the sand collection boxes are fixed at different heights through a supporting mechanism, air guiding pipes are arranged on the sand collection boxes, and the air guiding pipes are located at different heights, located at the air outlet end of the simulation wind tunnel body and face the air supply regulation and control assembly; the sand collecting box is used for quantitatively collecting soil particles carried in the wind erosion process in a grading mode. According to the invention, high integration of wind erosion simulation, graded sand collection, real-time weighing and data acquisition is realized, and an efficient tool is provided for research of a soil wind erosion mechanism.

The slope water and soil conservation system comprises a slope body, a layered protection structure, a dynamic monitoring module and a biological isolation belt are arranged on a slope body of the slope body, and the layered protection structure is composed of a nanofiber net on the upper layer, vegetation symbionts planted on the middle layer and honeycomb-shaped geocells on the slope toe. The honeycomb geocell is filled with a mixture of local weathered rock debris and humus, and the dynamic monitoring module comprises a soil humidity sensor and a wind speed sensor matched with the soil humidity sensor. The method is suitable for the problems of slope vegetation damage, water and soil loss and wind erosion caused by engineering disturbance such as new energy development in the low-latitude plateau area, and the ecological restoration target is achieved through the synergistic effect of layered protection, intelligent monitoring and biological isolation.

The invention relates to the technical field of desertification control, and discloses sand stabilization coarse particles and a preparation method thereof and a combined sand stabilization method.The sand stabilization coarse particles are prepared from, by weight, 60-90 parts of desert in-situ sand, 0.5-5 parts of plant fibers and 5-30 parts of curing excitation reaction components, and the curing excitation reaction components are alkali excitation curing components or biological mineralization reaction components; under the condition that the alkali-activated curing component is adopted, the sand-fixing coarse particle further comprises 5-40 parts of an active material, the active material is selected from at least one of fly ash, granulated blast-furnace slag, metakaolin, volcanic ash or tailing powder, and the total content of SiO2 and Al2O3 in the active material is not lower than 30wt%; the particle size range of the sand stabilization coarse particles is 5-200 mm. According to the technical scheme provided by the invention, the sand stabilization treatment targets of low exogenous dependence, large-scale construction and long-term stable wind erosion resistance can be achieved.

The invention relates to the technical field of soil regulating materials or soil stabilizing materials, and discloses a maintenance-free seasonal external aeolian sandy soil delayed microorganism activation and improvement method, which adopts a microbial agent for generating a biological membrane to improve soil and adopts seeds of creeping turfgrass to restore vegetation to take local materials as much as possible to treat aeolian sandy soil. However, the time for applying the material into the soil is in a dry season with a clear plot range eroded by seasonal external aeolian sandy soil, and the time for taking effect is in a rainy season without special watering maintenance. In dry seasons, the seed protection blocks and the microbial inoculum slow release strips are adopted to ensure that the seeds and the microbial inoculum are in a dormant state, do not germinate in advance and are not damaged due to exposure in the environment. A seed protection block and a sand-fixing net felt layer are used for inhibiting wind erosion, and a sunshade carbon source layer is used for preventing microbial inoculum death. In rainy seasons, the seed protection blocks and the microbial agent slow-release strips are degraded to release seeds and microbial agents and germinate, the degraded seed protection blocks are used for fertilizing the seeds, and the sand stabilization net felt layer and the sunshade carbon source layer provide fermentation substrates for the microbial agents to generate biological membranes, so that soil is improved, and vegetation is recovered.

This invention discloses a composite microbial agent for the ecological restoration of shifting sands, its preparation method, and its application. The composite microbial agent includes *Lystrophus*, *Pseudomonas favosa*, *El Zurumiella*, and *Bacillus*. The composite microbial agent protected by this invention can form a biological crust with both wind erosion resistance and moisture retention functions on the surface of desert shifting sands in a short period. Furthermore, it doubles the natural colonization of pioneer plants on the shifting sand surface within four months, visually verifying the tangible effects of this technology in fixing shifting sands and increasing vegetation cover. This provides an engineering-feasible technical support for the rapid stabilization of sand dunes and the ecological restoration of desertification.

The invention provides a rainfall-wind erosion-salting-out integrated test device and method for a ruins reduced scale model. The integrated test device comprises an environment test cabin, a bearing unit, a rainfall simulation unit, a wind erosion simulation unit, a salting-out simulation unit and a control system, the environment testing cabin is made of a transparent material, and the interior of the environment testing cabin is a testing space; the bearing unit is arranged in the environment testing cabin and is used for placing a sample; the rainfall simulation unit is used for spraying simulated rainwater to a sample in the environment test cabin; the wind erosion simulation unit is used for blowing air into the environment test cabin; and the salting-out simulation unit is used for supplying salt-containing fluid to the bottom or the interior of the sample. Three degradation mechanisms of rainfall erosion, wind erosion and salting-out are integrated in a single test device, the heritage degradation process under the multi-factor coupling effect in the nature can be highly restored, and the technical problems that in the prior art, the coupling effect cannot be simulated, the test efficiency is low, and control is not coordinated are solved.

The application provides a kind of wind erosion accumulation dynamic monitoring method and device based on multi-sensor fusion, it is related to wind erosion monitoring technical field, the synchronous measurement data of optical sensor array, temperature sensor array and moisture sensor array arranged along vertical direction in the region to be monitored is collected with preset period;According to the synchronous measurement data, the optical demarcation point candidate position, temperature demarcation point candidate position and moisture demarcation point candidate position in the region to be monitored are determined;Based on the confidence weight corresponding to the optical demarcation point candidate position, temperature demarcation point candidate position and moisture demarcation point candidate position, weighted average calculation is carried out, and the current relative height value corresponding to the above-ground-underground demarcation point position is obtained;The current relative height value is compared with historical relative height value, and the wind erosion thickness or accumulation thickness is obtained.The accurate measurement of wind erosion accumulation can be realized, compared with the monitoring mode in the related art, the monitoring efficiency and precision can be effectively improved.

The invention belongs to the technical field of wind erosion experiment devices, and discloses a wind erosion particle collection device for a wind erosion experiment, the wind erosion particle collection device comprises a base, the top end of the base is rotatably connected with a turntable; the collecting assembly comprises a supporting frame, a plurality of air duct openings and a plurality of limiting pieces, the air duct openings are distributed in the supporting frame in the axial direction, the limiting pieces are arranged on the air duct openings, the air duct openings are connected with the supporting frame in a limiting mode through the limiting pieces, and the opening end faces of the air duct openings face the windward side; the collecting assembly comprises a plurality of collecting boxes and a plurality of screening pieces, the collecting boxes are fixedly connected to the top end of the rotating disc, the collecting boxes communicate with the air duct openings correspondingly, and the screening pieces are arranged in the collecting boxes; and the stabilizing piece is arranged on the base, and the base is connected with the ground in a limiting mode through the stabilizing piece. The wind erosion field sampling efficiency, flexibility and data reliability are improved.

The invention discloses a prediction method for a meteorological accumulated dust cleaning demand of a photovoltaic module based on a numerical mode. The prediction method comprises the following steps: selecting an SSP-RCP scene and future simulation data and historical rainfall data of a plurality of global climate modes from a CMIP6 data set; for the target area, calculating the average future and historical precipitation of each lattice point in multiple modes; then, the annual effective deposition rate of each grid point is calculated, the core of the annual effective deposition rate is to correct the conversion from vertical settlement to the slope of the photovoltaic module through an effective deposition coefficient, and the wind blowing loss is quantified through a wind erosion correction coefficient; and finally, calculating the theoretical annual cleaning times of the photovoltaic module of each grid point based on the annual effective deposition, and providing a quantitative basis for differentiated operation and maintenance.

The invention relates to the technical field of ecological restoration, and discloses a method and system for evaluating the long-term effect of restoration of a gravel curtain layer in an arid mining area, and the method comprises the following steps: collecting the gravel coverage, the distribution type and the soil crust shear strength of an undisturbed natural gravel curtain layer as references; accumulated mass loss under the multi-parameter combined working condition is measured through a wind tunnel test; determining a weight based on sensitivity analysis and constructing a wind erosion resistance index model; periodically monitoring key parameters of the restoration area and calculating an index value; and if the index is not lower than the natural standard for a long time and the fluctuation amplitude is smaller than a historical fluctuation threshold value, judging that the long-term effect reaches the standard. According to the method, through multi-parameter coupling modeling and dynamic monitoring, the problems of quantitative evaluation and long-term verification of the repairing effect are solved.

This invention provides a device for collecting wind-eroded matter from surface soil. The device includes a fan, an air delivery channel, a flexible connecting bag, an experimental chamber, a wind-eroded matter collection bag, and a portable dust concentration meter. The fan consists of a fan body and a battery. The fan outlet is connected to the air delivery channel, which is trapezoidal in shape and enclosed by the flexible connecting bag. The experimental chamber is a stainless steel cuboid with a circular opening at the top, where the extension tube of the portable dust concentration meter is fixed to obtain the dust release concentration. The wind-eroded matter collection bag is a stainless steel wire mesh bag fixed to the left side of the experimental chamber. This invention enables efficient and comprehensive collection of wind-eroded matter from surface soil, reduces operational difficulty, provides a reliable sample basis for subsequent detection and analysis of microplastic pollution, and can assist in in-depth research on soil microplastic pollution in fields such as environmental monitoring.