695 results about "Soil conservation" patented technology

The invention relates to a rainfall kinetic energy space-time prediction method based on dual-polarization weather radar observation parameters, and the method comprises the steps: firstly processing minute-resolution raindrop spectrometer data, calculating raindrop diameter distribution, and calibrating the data of a rain gauge; secondly, dual-polarization radar parameters (ZH, ZDR and KDP) are calculated based on a physical formula, rainfall kinetic energy KE is calculated in combination with micro-physical characteristics, and rainfall types are marked; and then, after atmospheric field variables are extracted and physical normalization is carried out, a bidirectional time series kinetic energy prediction network (BTKE-Net) is constructed, and rainfall kinetic energy is accurately predicted through BiLSTM and a deep regression network. And finally, after attenuation and offset correction, inputting the data into the trained BTKE-Net model, and carrying out real-time space-time prediction. The innovation of the invention lies in that the application potential of the dual-polarization weather radar in the water environment field is excavated, large-range high-precision rainfall kinetic energy space-time prediction is realized, and more accurate scientific basis and decision support are provided for water and soil conservation and meteorological disaster prevention and control.

The invention provides a soil erosion analysis method and system, and belongs to the field of water and soil conservation monitoring. The method comprises the steps of inputting environmental data of a target area into a soil erosion calculation model to generate a current soil erosion grade map of the target area, and obtaining a soil erosion calculation result of the target area; inputting the environmental data of the target area into a soil erosion prediction model to predict a soil erosion grade map of the target area in a preset future time length to obtain soil erosion prediction data of the target area; and performing soil erosion analysis based on the soil erosion calculation result of the target area, the soil erosion prediction data and a preset database to obtain a soil erosion analysis result. Therefore, soil erosion dynamic monitoring is carried out on the cross-regional small watershed, automatic calculation and soil erosion change prediction are carried out on soil erosion of different regions, the purpose of analyzing the future change trend of the soil erosion of the different regions is achieved, and support is provided for generating water and soil conservation measure suggestions.

The invention provides a soil erosion evaluation and prediction method based on a public data set, and belongs to the field of soil erosion. An improved RUSLE model is constructed by obtaining public land utilization data, rainfall data, vegetation coverage data, soil texture data and DEM data of a target area, and the soil erosion condition of the target area is evaluated; four prediction scenes including a natural development scene, a city extension suppression scene, an ecological priority scene and a cultivated land protection scene are put forward according to policies, adaptive atlas under the four scenes are made, existing land utilization data and the adaptive atlas of all the scenes are input into a CA-Markov model, and land utilization conditions under all the scenes in the future are obtained; and on the basis of the predicted land utilization data, a water and soil conservation measure factor under each scene is obtained in combination with an assignment method, and then an improved RUSLE model is constructed in the grid, so that the soil erosion condition of the target area under multiple scenes in the future can be obtained.

The invention belongs to the technical field of spectral image processing, and particularly relates to a water and soil conservation monitoring method and device for power grid engineering, and the method comprises the steps: obtaining a plurality of spectral images of a target monitoring region at different construction stages; selecting feature points containing different types of typical ground features from the spectral image for extraction, and extracting target feature points of each wave band; carrying out ground feature classification on the spectral image of the target monitoring area, and determining different types of typical ground features contained in the spectral image; registering the plurality of spectral images by using the target feature points; performing time sequence analysis on the plurality of registered spectral images, and calculating dynamic change data of different types of typical ground features in the plurality of spectral images at different construction stages; and based on the dynamic change data, outputting water and soil environment influence evaluation results of different construction stages on the target monitoring area. The problem of spectral image drift in water and soil conservation analysis can be solved, and the accuracy of a water and soil conservation monitoring result is further improved.

The invention discloses a Beidou time service synchronous multi-source data fusion monitoring device, system and method, and aims to solve the core problems of low meteorological factor-ground surface settlement causal correlation analysis precision and poor early warning reliability caused by multi-source data time asynchronization due to sensor clock independence. The device directly drives each sensor in the multi-source data acquisition module to perform physical-level synchronous acquisition through a hardware synchronous trigger pulse generated by the Beidou time service module, and ensures that settlement, weather and positioning data have the same timestamp at the source; and time axis calibration and dynamic weight fusion based on real-time data quality are carried out through the preprocessing module. The system integrates the devices, a cloud analysis model and an early warning engine. According to the invention, a closed loop from hardware-level synchronous acquisition, space-time alignment to intelligent analysis is realized, a multi-source data synchronization error is reduced from a second level to a millisecond level, and the accuracy and timeliness of water and soil conservation monitoring are remarkably improved.

The invention discloses a water and soil conservation monitoring system and method based on the Internet of Things technology, and relates to the technical field of water and soil conservation monitoring. A data acquisition module of the Internet of Things technology is utilized to judge small, medium and large drainage basins according to the drainage basin length of a monitoring area; then real-time data of soil humidity, drainage basin correlation and water and soil conservation measures are collected in real time from a monitoring area, a calculation and evaluation module is used for respectively inputting, sequentially calculating and outputting a soil erosion rate TQ, a drainage basin monitoring area evaluation value LY and a water and soil conservation measure adjustment value SBF, and the water and soil conservation measure adjustment value SBF is calculated and output on the basis of the water and soil conservation measure adjustment value SBF; according to the method, the accuracy of monitoring and the pertinence to small, medium and large drainage basins are ensured, a closed-loop feedback mechanism is formed, an innovative monitoring method is realized, and the beneficial effects provide more scientific, comprehensive and effective support for water and soil conservation work.

The embodiment of the invention discloses a method for intelligently assisting in reviewing a water conservation scheme of a water and soil conservation production and construction project, and the method achieves the intelligent feature matching of a new scheme and similar cases through the construction of a tagged knowledge base integrating historical cases of multiple industries, so as to recognize the generality compliance. A double-engine review mechanism is adopted, a form review module automatically checks document structure integrity and format specifications, and a logic review module executes cross-chapter data consistency check and business logic compliance analysis and highlights and positions error positions in a document. And recording decision logic in real time to form a feedback closed loop. And dynamically optimizing case library matching weight and recognition rules based on high-frequency error statistics and expert correction records. The modes of positioning review key points to chapters and sections, describing specific requirements of each review key point in a language, adding a check formula among data to review content needing to be calculated, determining a check type to which each review key point belongs, and the like are adopted, and the model is trained more clearly, so that the model has relatively professional review ability.

The invention relates to the technical field of mountain afforestation, provides an efficient nursery stock planting method suitable for mountain afforestation, and aims at solving the problems that in existing mountain afforestation, planting is not standard, the survival rate is low, the water and soil conservation capacity is weak, and the labor intensity is high. The forest space layout is optimized, and the water and soil conservation capability is enhanced; the mellow soil and immature soil layered stacking and backfilling technology is adopted, the natural structure of the soil is recovered, and the root zone microenvironment quality is improved; a fertilizer isolation layer is arranged and degradable container seedlings are implanted, so that the risk of root burning is avoided, the integrity of root systems is protected, and the survival rate of the seedlings is remarkably increased; by combining root fixing water slow irrigation, water retention covering and slope water collection and soil conservation structures, natural rainfall is effectively utilized, evaporation and runoff are reduced, and water saving and drought resisting are achieved; the whole process flow is standard, the replicability is high, and the dependence on artificial experience is reduced.

The invention discloses a measuring device and a measuring method for field runoff plot soil erosion monitoring, the device comprises a sediment measuring device, a water measuring device and a protective cover, the sediment measuring device realizes sediment filtration and weight measurement through a filter funnel and a scale, and the water measuring device accurately calculates the water amount by using a double-tipping-bucket container and a sensor. The protection cover ensures that runoff accurately enters the device. The device is also provided with a horizontal test system to ensure the measurement accuracy. The measuring method comprises two steps of preparation before work and a working process, specifically, firstly, a proper position is selected to place the device and leveled, then silt and water generated in a runoff plot are monitored, the silt is separated through the filtering funnel, the weight is measured, meanwhile, the water amount is calculated through the double-tipping-bucket container and the sensor, and finally flowing water is guided out through the drainage system, so that monitoring is completed. The device is compact in structure and simple and convenient to operate, can accurately monitor the soil erosion condition of the field runoff plot in real time, and provides powerful support for water and soil conservation and ecological environment research.

The utility model discloses a forestry water and soil conservation ecological device, which relates to the technical field of ecological protection, and comprises a fixed plate, the upper end of the fixed plate is provided with a plurality of uniformly distributed placing holes, a first chute and a second chute, the placing holes are arranged in the middle of the upper end of the fixed plate, the first chute is arranged on the front side of the placing holes, and the second chute is arranged on the front side of the second chute. The second sliding grooves are formed in the rear sides of the containing holes, threaded holes are formed in all corners of the upper end of the fixing plate, a corner locking assembly is in threaded connection with the interior of each threaded hole, a plurality of evenly-distributed inserting holes are formed in the front side of the upper end of the fixing plate, the inserting holes are formed in the left sides of the first sliding grooves, and a plant external limiting assembly is arranged at the upper end of each containing hole. The plant external limiting assembly comprises a first L-shaped plate, and the inner end of the first L-shaped plate is fixedly connected with a first external protection arc-shaped plate. According to the plant protection device, the growing plants can be externally protected, the phenomenon of necrosis caused by inclination of the plants due to external reasons is prevented, and the survival rate and the attractiveness of the plants are improved.

The invention belongs to the technical field of watershed hydrological process simulation research, particularly relates to a distributed storage and hypersonic dynamic combination model construction method based on water and soil conservation measures, and solves the technical problems that an existing loess plateau region hydrological model is low in simulation precision and poor in applicability. Firstly, a research area is subdivided into a plurality of uniform grids through uniform grid division, and each grid represents different underlying surface features; the method comprises the following steps: carrying out an observation test on a typical field slope of a loess plateau to obtain observation data under different water and soil conservation measures, and determining a model parameter range in each grid under the water and soil conservation measures. According to the method, the rainfall-runoff process in each grid is linked with each other by combining a one-dimensional motion wave equation to form a complete distributed storage hyperdynamic combined model, the model structure can dynamically reflect runoff production mechanisms of different grid units, and the prediction capability of the model is improved.

The invention discloses a method and a system for rapidly extracting morphological indexes of an erosion gully, and belongs to the technical field of water and soil conservation. The method comprises the following steps: S1, watershed segmentation; s2, identifying an erosion gully object; comprising the following steps: performing spectral feature analysis based on an orthoimage to obtain a first principal component; selecting a texture feature variable and a topographic feature variable; performing multi-scale image segmentation on the first principal component based on the texture feature variable; identifying whether each object is an erosion gully according to the topographic feature variables; and correcting the identification result to obtain a final erosion gully object identification result. S3, channel line extraction is carried out on the erosion gully; extracting a river network water system through hydrological analysis, correcting the river network water system, and taking the corrected river network water system as a channel line of the erosion gully; and S4, extracting the morphological index of the erosion gully according to the erosion gully object identification result and the gully line. The method can effectively improve the extraction precision of the morphological characteristics of the erosion gully, and breaks through the problem of poor extraction precision of the erosion gully.

The invention discloses an evaluation and attribution method for service change of a farmland-wetland composite ecosystem, relates to the technical field of environmental evaluation, and aims to solve the problem that the service change evaluation of the farmland-wetland composite ecosystem is inaccurate in an existing evaluation method. The method comprises the following steps: 1, acquiring land utilization / coverage data and driving force factor data; 2, model parameters are set, and output results about habitat quality, water yield, soil conservation, wind prevention and sand fixation and grain production are obtained; 3, establishing a comprehensive evaluation index system, wherein the system comprises three aspects: supply service, adjustment service and support service; 4, selecting five ecosystem service indexes, and performing comprehensive quantitative evaluation on the farmland-wetland composite ecosystem service; 5, analyzing space-time evolution characteristics by adopting a cold and hot spot pattern analysis method; and 6, analyzing the interpretation force of different driving factors on each ecosystem service through a generalized linear mixed effect model. The method is used for accurately evaluating the service change of the farmland-wetland composite ecosystem.

The invention provides a method suitable for water retention of soil with different textures. In order to better perform size matching between the biochar and soil particles, particle size grading is performed on the biochar according to the size of soil aggregates, and three kinds of biochar with the particle size larger than 2.0 mm, the particle size ranging from 0.25 mm to 2.0 mm and the particle size smaller than 0.25 mm are obtained. The three kinds of biochar with different particle sizes are used in different types of soil respectively, and 5% of biochar with the particle size of 0.25-2.0 mm is selectively applied according to the water retention requirement of the arid area loam farmland; according to the drainage requirements of loam waterlogging areas with more rainfall, 5% of biochar with the particle size larger than 2.0 mm is selectively applied; and 5% of biochar with the particle size smaller than 0.25 mm is selectively applied for water and soil conservation of sandy soil in the arid region. By scientifically regulating and controlling the particle size and the application amount of the biochar, the biochar is matched with the specific properties of the soil, so that the water retention capacity of the soil is improved, and the soil efficiency is improved.

The invention discloses a cold region land surface process river water and sediment model construction method, which comprises the following steps: selecting a target research drainage basin, extracting a drainage basin range ROI (Region of Interest), and collecting water and sediment data and related basic data in the drainage basin range; calculating a thermal erosion amount caused by temperature rise in the river reach, a snow melting erosion amount caused by snow melting, a water erosion amount induced by rainfall and a river ice erosion amount caused by ice running or flow ice scraping erosion of river ice in winter and spring; selecting landform characteristic parameters according to a river flow direction to construct a sediment transport coefficient of a river reach, establishing a cold region river water and sediment model according to the sediment transport coefficient and each erosion source item, and obtaining a sediment content simulation result based on the established cold region river water and sediment model; and evaluating the simulation performance of the model based on the established evaluation index. The method can dynamically respond to the erosion sand production and runoff sand transportation process of the cold region, provides timely and high-precision sand content calculation, and has important significance on water and soil conservation management and water and sand risk regulation and control of the cold region.

A slope protection layer is formed by mutually connecting a plurality of slope protection building blocks, the slope surface is decomposed into a plurality of small step planes, the slope protection surface achieves zero soil loss, the water and soil conservation effect is remarkable, and the greening effect is lasting. A plurality of steps are laid in the inclined direction of the slope body, the adjacent steps are staggered, so that the whole slope surface is in a staggered step shape, when flowing downwards from the slope surface, water flow gathers at the splicing position of the slope protection building blocks, a turbulent flow energy dissipation area is formed, and water flow energy is remarkably reduced; different interlocking structures are arranged between two adjacent slope protection building blocks of each step and between the third slope protection building block of the adjacent step, so that the overall stability of the slope protection structure is greatly improved, and the slope protection building blocks penetrate into the slope surface by arranging zigzag structures on the bottom surfaces of the slope protection building blocks, so that the slope protection structure is more stable. And the overall stability of the slope protection structure is further improved.

The invention discloses a soil remediation device for water and soil conservation and a remediation method thereof, and relates to the technical field of soil remediation, the soil remediation device comprises a first supporting plate, first wheels are rotationally connected to the two sides of the first supporting plate, a rotating rod is rotationally connected to the bottom of the first supporting plate, and second wheels are fixedly connected to the two ends of the rotating rod; a pesticide storage box is fixedly connected to the upper portion of the first supporting plate, a repairing assembly is arranged on the first supporting plate and comprises a threaded rod movably connected to the outer side of the first supporting plate, a plurality of V-shaped plates and a pesticide spraying pipe, the V-shaped plates and the pesticide spraying pipe are fixedly connected to the outer side of the first supporting plate, and the threaded rod rotates to drive the V-shaped plates and the pesticide spraying pipe to conduct depth adjustment; and the remediation liquid is sprayed to soil of different depths through the pesticide spraying pipe, the remediation liquid sprayed out of the pesticide spraying pipe is used for remediation of the soil of different depths through the remediation assembly, and accurate remediation is effectively carried out for soil pollution of different layers.

The invention relates to the technical field of intelligent environment recognition, and particularly discloses a water and soil conservation measure intelligent query method and system based on multi-dimensional parameterization. Temperature and humidity data are collected in real time through a multi-source sensor deployed in water and soil, and a temperature stability characteristic value is calculated by adopting zero-sequence processing and fast Fourier transform; a humidity change rate characteristic value is extracted by combining first-order difference processing and Haar wavelet transform; the feature values are constructed into a comprehensive environment state feature vector, and the comprehensive environment state feature vector is input into a trained random forest model for environment recognition result evaluation; according to the method, the sensing technology, signal analysis and machine learning prediction are fused, the sensing ability, the regulation and control precision and the self-adaptability of the system are improved, the method is suitable for complex and changeable environment scenes, and the method has the advantages of being high in adaptability, high in adaptability and the like. Good application prospects are realized.

The invention belongs to the technical field of mine ecological damage analysis, and discloses a mine ecological damage data integration and ecological damage analysis method. According to the method, when the ecological environment condition of the target mine field is analyzed, the target mine field is subjected to monitoring area division, then the soil conservation function loss and groundwater pollution exposure of each monitoring area are analyzed, specific analysis can be carried out according to the ecological environment characteristics of different areas, the analysis accuracy and comprehensiveness are improved, and the analysis efficiency is improved. And targeted treatment measures can be formulated. According to the method, the water quality evaluation condition is comprehensively analyzed on the basis of the groundwater body fluidity and the groundwater body influence during exposure analysis of the groundwater pollution line of the target mine field, the diffusion range and speed of pollutants can be more accurately predicted, and thus the degree and range of groundwater pollution are more accurately evaluated. The complexity and diversity of groundwater pollution can be known more deeply, and a scientific basis is provided for formulating comprehensive treatment measures.

The invention provides a method for quantifying the influence of a black land cultivated land ecological barrier function on the grain yield, and relates to the technical field of grain yield influence assessment, and the method comprises the steps: obtaining the climate, soil, hydrology and land utilization geospatial data of a target ecological region; determining a black land cultivated land ecological barrier range, and calculating service function values of five types of ecological systems including habitat quality, water source conservation, soil conservation, water quality purification and carbon sequestration storage; generating an ecological barrier function comprehensive value ESI through normalization and equal weight superposition; calculating and normalizing the black land cultivated land grain yield in combination with remote sensing data and a harvest index method; and based on multi-scale window random sampling, fitting a non-linear relationship between ESI and grain yield, and determining an optimal proportion of an ecological barrier grid proportion, a minimum threshold value of an ecological function and a saturation threshold value of a cultivated land ecological function through derivative analysis. The problem of landscape or regional scale quantification is solved, and an accurate basis is provided for black land ecological restoration and grain safety decision making.

The invention relates to a watershed water ecological function monitoring zoning method and device. The method comprises the steps that digital elevation model data, land cover data, meteorological data and soil data of a target watershed are acquired; according to the digital elevation model data, performing sub-basin unit division on the target basin to obtain a plurality of sub-basin units and a water system network; determining an accumulated influence value of each sub-basin unit according to the water system network; evaluating the water ecological function of the target drainage basin by using an ecological system service and tradeoff comprehensive evaluation model to obtain a water yield index, a soil conservation index and a water quality purification index; according to the accumulated influence value, the soil conservation index, the water yield index and the water quality purification index, obtaining a water ecological function comprehensive index of each sub-basin unit; according to the water ecological function comprehensive index, water ecological function monitoring zoning is carried out on the target drainage basin, and pertinence of drainage basin water ecological function monitoring is improved.

The invention discloses a water and soil conservation soil loss data monitoring system and method, and the method comprises the steps: constructing a soil loss data management container through a water and soil conservation management device according to the information of a to-be-monitored target region, the soil loss data management container divides the to-be-monitored target area into a plurality of sub-areas of the monitored target area; the soil loss data management container creates soil loss data management sub-containers corresponding to the water and soil conservation monitoring features according to the sub-region sequence of the monitoring target region corresponding to the water and soil conservation monitoring features; and the soil loss data management sub-container corresponding to the water and soil conservation monitoring characteristics obtains a data sequence and a data change trend corresponding to the water and soil conservation monitoring characteristics according to the sub-region sequence of the monitoring target region corresponding to the water and soil conservation monitoring characteristics, and completes water and soil conservation monitoring of the to-be-monitored target region.

The invention discloses a method and system for dynamically monitoring soft sandstone slope erosion, and relates to the technical field of geological disaster monitoring, and the method comprises the steps: building a monitoring sample area on a soft sandstone slope, obtaining initial terrain point cloud data, generating a reference digital elevation model, and recognizing a vegetation space pattern; collecting rainfall data in real time, and triggering an erosion monitoring program when rainfall parameters meet a preset triggering condition; acquiring real-time terrain point cloud data, generating a current digital elevation model and acquiring a slope fracture feature set; based on the elevation variation of the current digital elevation model and the reference digital elevation model, carrying out erosion intensity partitioning; determining an erosion regulation effect coefficient of each vegetation coverage subarea by combining vegetation spatial pattern data; and establishing an erosion risk assessment model, and outputting erosion sensitivity grading of the monitoring sample area and a key protection area identification result. According to the invention, automatic and high-precision dynamic monitoring of soft sandstone slope erosion is realized, and a scientific basis is provided for water and soil conservation and geological disaster prevention and control.

The invention provides an intelligent construction method for a water conservation forest project in a loess plateau area, and relates to the field of forestry ecological restoration and water and soil conservation projects. The method comprises the following steps: collecting and carrying out normalization processing on various original physical quantities based on a space-time sliding window to obtain normalized values of the various physical quantities; constructing a composite physical state function based on the normalized values of various physical quantities, introducing a disturbance propagation response function to construct a measurement evaluation function, and performing spatial threshold screening processing based on the measurement evaluation function to generate a planting candidate point set; generating a spatial aggregation planting block set based on the planting candidate point set; and determining planting parameters based on the gradient change condition of the measurement evaluation function in the spatial aggregation planting block so as to execute planting operation. The problems that a traditional water conservation forest engineering construction method lacks modeling of spatial disturbance and neighborhood consistency, construction parameter configuration lacks intelligent adjustment, and a measurement-analysis-decision-execution closed loop structure is not formed in the whole process are solved.

The invention discloses a soil erosion resistance prediction method and system based on earth surface parameters, and relates to the technical field of soil erosion and water and soil conservation monitoring and prediction, and the method comprises the steps of earth surface parameter collection, parameter preprocessing, erosion response modeling, erosion resistance threshold tensor inversion and erosion resistance prediction. Collecting multi-source earth surface parameter data; secondly, constructing a unified earth surface parameter feature set; obtaining erosion response simulation data by adopting an erosion response modeling method combining physical process simulation and lightweight machine learning residual correction; an explicit Bayesian neural network and a variational reasoning framework are constructed, observation data are combined, and a four-dimensional anti-corrosion threshold tensor is obtained through inversion; introducing a double-branch space-time multi-task fusion prediction model of an anti-erosion threshold tensor, and outputting a prediction value and a prediction grade of the soil anti-erosion capability; according to the scheme, dynamic and spatial prediction of the erosion resistance of the soil can be realized, and a scientific basis is provided for water and soil conservation and ecological environment management.

The invention discloses a treatment method for preventing traceability erosion of a ditch head, and relates to the technical field of ecological treatment. Earth excavation is carried out, layer-by-layer slope cutting and order building treatment is carried out on the ditch slope from near to far away from the ditch head according to the preset gradient, and multiple stages of side slopes and multiple platforms are formed; earthwork backfilling is carried out, soil obtained after layer-by-layer slope cutting and step building treatment is stacked at the bottom of the ditch head, the soil stacked at the bottom of the ditch head is rolled to form a ditch channel, and the inclination angle between the ditch channel and the bottom of the ditch head ranges from 10 degrees to 15 degrees; soil covering and greening are conducted, soil covering is conducted on the channels, the multiple stages of side slopes and the multiple platforms through surface soil, multiple spruces are planted on the channels and the multiple platforms correspondingly, and high wheatgrass and ryegrass are sown on the slope surfaces of the multiple stages of side slopes in a mixed mode correspondingly; building a water retaining wall; and concealed pipes are arranged. In cooperation with water and soil conservation plant planting, the ditch bottom scour prevention and slope greening engineering is added, and a ditch head treatment mode integrating the landscape improvement function and the water and soil conservation function is formed.

The utility model discloses a side slope ecological restoration water and soil conservation device, which relates to the technical field of ecological restoration and comprises a side slope body, a water storage tank is arranged at the top end of the side slope body, arched slope protection frameworks are uniformly arranged on one side of the surface of the side slope body, and planting grooves are arranged in the arched slope protection frameworks. A clamping assembly matched with the arched slope protection framework is arranged between every two adjacent planting grooves; a water outlet pipe is arranged on one side of the middle of the water storage tank, and annular spraying pipes matched with the planting grooves are arranged at the bottom end of the water outlet pipe; a flow dividing assembly is arranged on one side of the bottom end of the slope body. According to the arched slope protection framework, structural support is provided for vegetation, the strength of the slope protection framework can be improved through the arched design, and the rain wash resistance of the slope protection framework is enhanced.

The invention relates to the technical field of water and soil conservation and ecological restoration, in particular to a rapid restoration method for native landforms and vegetation in a northwest construction disturbance area. The method comprises the following steps: before construction, performing investigation and sampling analysis on vegetation types and soil layers of a to-be-disturbed area, and acquiring topographic and geomorphic information of the construction disturbed area by adopting an unmanned aerial vehicle; in the construction process, shrubs in a construction disturbance area are numbered and transplanted, and turfs and soil of all layers are stripped in a layered mode; after construction is finished, soil backfilling maintenance is conducted according to the soil profile hierarchical configuration; shrub plants are transplanted, herbaceous plants are sown, and meanwhile vegetation in the construction disturbance area is managed and maintained. According to the method, the steps are clear, a complete system is formed through a series of operations including vegetation and soil investigation, transplanting, stripping, backfilling, sowing, maintenance and the like, all the steps are closely connected, operation confusion and repeated labor are avoided, and the efficiency and effect of landform disturbance and vegetation recovery work are improved.

The utility model discloses a soil retaining device for water and soil conservation, and particularly relates to the field of water and soil conservation, which comprises a fixing bottom plate, a fixing nail is inserted into the fixing bottom plate, a soil retaining plate is inserted into the top of the fixing bottom plate, a first drain hole is formed in the soil retaining plate, and a connecting block is fixedly mounted on one side of the soil retaining plate. A threaded piece is inserted into the connecting block and connected to the interior of the fixed bottom plate through threads, a threaded sleeve is fixedly installed on one side of the soil retaining plate, a hinge piece is fixedly connected to the outer wall of the threaded sleeve, and a connecting piece is inserted into the hinge piece. According to the soil retaining device, the threaded pieces and the threaded sleeves are arranged, so that a worker can fixedly connect a plurality of soil retaining plates together through the threaded pieces and the threaded sleeves according to the soil retaining requirement, the effect that the soil retaining device can be heightened according to the requirement is achieved, and the worker does not need to worry that too much soil is retained, so that the soil overflows the soil retaining device, and the soil is lost.

The utility model discloses a rock-fill dam, which relates to the technical field of water conservancy and hydropower engineering and comprises an asphalt concrete core wall, an upstream rock-fill area and a downstream rock-fill area. The downstream rockfill area comprises a first strength area and a fully-weathered rock area, one side of the fully-weathered rock area is connected with one side of the upper end of the asphalt concrete core wall, and the bottom of the fully-weathered rock area is connected with the top of the first inverted filter layer; the upstream rockfill area comprises a second strength area and a fully strong weathered rock area, one side of the fully strong weathered rock area is connected with the other side of the lower end of the asphalt concrete core wall, and the bottom of the fully strong weathered rock area is connected with the ground. The fully-weathered rocks are used above the normal water level of the rock-fill area at the downstream of the dam, and part of the fully-weathered rocks are used below the dead water level of the rock-fill area at the upstream, so that the fully-weathered rocks are fully utilized, the utilization rate of excavation materials is increased, the project investment is reduced, and environmental protection and water and soil conservation are facilitated.