580 results about "Shrub" patented technology

The invention relates to the technical field of soil erosion monitoring, in particular to a shallow mountain belt abrupt slope shrub land soil erosion monitoring method and system, and the method comprises the following steps: S1, collecting topographic point cloud data and vegetation reflectivity data; s2, spatial interpolation is carried out on the terrain point cloud data to generate three-dimensional terrain grid data, and meanwhile, boundary coordinates of a shrub coverage area are taken; s3, calculating a root system corrosion resistance strength value of each grid; s4, generating a real-time erosivity index of each grid; s5, extracting a real-time erosivity index of the grid where the corresponding node is located and a terrain parameter of the associated grid; and S6, calculating the soil erosion amount grid by grid, and generating a three-dimensional erosion space distribution diagram. According to the invention, through integration of multi-source data acquisition, real-time data processing and three-dimensional visual monitoring, accurate evaluation and dynamic early warning of the soil erosion process of the shrub forest land with the abrupt slope in the shallow mountain are realized, so that decision support is provided for water and soil conservation and ecological restoration.

The invention discloses a greenbelt cooling effect evaluation method and system based on a remote sensing image and a streetscape image, and the method comprises the steps: obtaining the data of the streetscape image, carrying out the denoising and cutting, recognizing, extracting and calculating the pixel coverage rate of arbors, grass trees and shrubs, and constructing the greening feature indexes of the streetscape image; acquiring an urban satellite remote sensing image, performing radiometric calibration, correction and identification, and constructing a greening characteristic index of the remote sensing image; acquiring a multispectral remote sensing image of the city, performing cloud detection, and obtaining the surface temperature of the city through surface temperature inversion; and constructing a random forest model and performing iterative training based on greening characteristic indexes of the surface temperature, the streetscape image and the remote sensing image of the city, and evaluating the cooling effect by using the fitted random forest model. The method gives full play to the advantages of wide coverage range of the remote sensing image and rich details of the street scene image, makes up for the limitation of a single data source, and achieves the comprehensive and accurate evaluation of the cooling effect of the green land.

The invention discloses a forest dynamic growth model construction method and system, and belongs to the technical field of forestry digital twinning. According to the invention, through constructing the live-action three-dimensional model and carrying out refined modeling on the single plant, refined simulation and multi-dimensional prediction of the forest growth process are realized; a digital twinborn platform is utilized to integrate a forest simulation model and basic forest information, forest stand structure parameters are extracted, an arbor layer growth dynamic model is established, and then the species diversity and natural update density of a shrub layer are dynamically simulated. According to the method, the limitation of single plant scale is broken through, co-evolution of the arbor layer, the shrub layer and the natural updating layer is integrated for the first time, multi-dimensional prediction and visualization are supported, and scientific support is provided for forestry digital twinning.

The invention relates to a forest tree diameter at breast height and tree height measurement method based on double-layer unmanned aerial vehicle laser radar point cloud fusion in a complex under-forest environment, and belongs to the technical field of forestry measurement. According to the method, multi-source point cloud registration fusion is carried out based on feature point matching and a weighted fusion algorithm; generating a ground DEM and carrying out point cloud height normalization; carrying out individual tree segmentation by adopting an improved mark control watershed algorithm; constructing a multi-dimensional feature vector for each tree, and calculating each feature; extracting a tree height based on the fused point cloud; an effective point cloud coverage index is introduced to judge the effectiveness of a 1.3 m height point cloud, weighted least square circle fitting is adopted to directly extract the diameter at breast height, and a pre-trained multi-feature fusion gradient lifting model is adopted to estimate the diameter at breast height for a tree with point cloud missing. According to the method, complete stand three-dimensional data is obtained through multi-source point cloud fusion, a multi-dimensional feature system is constructed, a complete mathematical calculation framework is established, and the technical problem that the diameter at breast height cannot be accurately measured due to complex under-forest shrub and grass shielding is effectively solved.

The invention belongs to the technical field of sand shrub planting, particularly relates to a shrub planting device used under a sand photovoltaic panel, and aims to solve the problems that an existing device is low in planting efficiency and has large limitation in shrub planting, the following scheme is provided, and the shrub planting device comprises a driving walking assembly, a pit digging assembly, a planting assembly and a soil filling assembly; the planting device can advance in the set direction under a sand photovoltaic panel by driving the walking assembly, shrub planting is conducted on the two sides of the device after the walking assembly is driven to advance by a certain distance, the one-time planting hole site digging process and the planting process are synchronously conducted, and the planting efficiency is improved. The planting efficiency of the shrubs under the sand photovoltaic panel is improved, after the shrub saplings are planted in the holes, the dug planting holes can be filled and leveled up through the soil filling assembly, the whole planting process of the shrubs is achieved, and due to the fact that the planting areas are located on the two sides of the driving walking assembly, planting cannot be affected by the heights of the shrub saplings.

The invention belongs to the technical field of remote sensing, and discloses a wolfberry planting distribution high-precision remote sensing monitoring method based on multi-temporal fusion and spectral feature optimization. According to the method, a multi-temporal and multi-spectral satellite image is used as a data source, and preprocessing and multi-temporal image fusion are firstly carried out; the method comprises the following core steps: establishing a time sequence characteristic curve according to a unique phenological period (such as bare soil characteristics in a dormancy period and high vegetation coverage in a rapid growth period) of wolfberry; in a spectral domain, screening out a characteristic spectrum dimension combination with the highest discrimination degree between the wolfberry and other crops through a characteristic wave band optimization algorithm (such as vegetation index difference degree and red edge characteristics); and in combination with an object-oriented classification or deep learning classification model, constructing a space-time coupling classifier, and performing high-precision extraction and distribution mapping on the Chinese wolfberry planting region. The method can effectively solve the problem of confusion classification of Chinese wolfberry and similar ground features (such as other shrubs and orchards), and realizes rapid and accurate monitoring of Chinese wolfberry planting area and spatial distribution.

The invention discloses a high-toughness wetland ecological grid structure and a restoration system thereof. The grid structure comprises a plurality of rows of slope fixing grids which extend longitudinally and are arranged at intervals, and the slope fixing grids in the adjacent rows are arranged in a staggered mode; interval zones between the adjacent slope fixing grids form planting base bands which are communicated with each other. The slope fixing grids and the planting base band are made of artificial substrates of a multi-level pore structure, and a plurality of longitudinally-extending artificial waterways are arranged in the planting base band. The staggered ecological grid structure is matched with the wave-shaped artificial waterway to enhance the overall stability and anti-interference capability of the wetland, and the artificial matrix with the multi-level pore structure improves the water retention, filtration and adsorption effects and enhances the hydraulic connectivity of the matrix. According to the remediation system, a grid structure is divided into four planting belts, the remediation system of an arbor-shrub-grass-hygrophilous four-layer three-dimensional community is formed, a functional microorganism-plant combined remediation mechanism is achieved in cooperation with microbial flora, and the remediation adjusting capacity and stability of the wetland are improved.

The invention discloses a soil-vegetation collaborative ecological restoration method aiming at a shrub invaded wetland, which comprises the following steps of: performing targeted restoration on key factors of soil by designing a fish-scale pit and a composite water-retaining matrix and a layered pH regulation method, controlling the water content and the pH of the soil at a certain level, and performing vegetation reconstruction. High-leaf-area (LA) type plants, high-specific-leaf-area (SLA) type plants and deep-root-system plants are planted in a matched mode, leaf dry matter accumulation is reduced through the canopy complementary effect, and the soil nitrogen conversion efficiency is improved through rhizosphere collaborative design; and finally, the intelligent control system performs long-term monitoring and feedback regulation on the soil condition, so that the maintenance energy consumption is reduced. According to the method, long-acting recovery of the degraded wetland is realized through a closed-loop system of soil matrix improvement, vegetation function configuration and feedback maintenance.

The invention discloses a dry lake basin ecological comprehensive restoration and intelligent monitoring method, and the dry lake basin ecological comprehensive restoration method comprises the steps: carrying out the soil replacement transplantation of a native plant in a dry lake basin, and achieving the edge-locking desertification control in the dry lake basin; indigenous plants are planted on the edge of the dry lake basin in the circumferential direction, and a sand material sealing and controlling plant strip is formed; quicksand on the earth surface is fixed by sowing psammophytes on the quicksand land on the periphery of the dry lake basin and the like; and building a plant sand-fixing grid by planting sand-fixing trees and shrubs in the upwind area on the periphery of the dry lake basin, covering a sand-fixing net and the like. The method can significantly improve the wind prevention and sand fixation efficiency of the area around the dry lake basin, effectively reduces the frequency of wind and sand disasters, provides a solid guarantee for area safety, powerfully promotes the optimization of the soil structure and the natural recovery of vegetation, enhances the water and fertilizer retention capability of soil, and improves the water and fertilizer retention capability of the soil. And the service functions, such as water conservation, climate regulation and the like, of a regional ecological system are also remarkably improved.

The invention discloses a mine remediation system and method based on bottom mud regeneration and bamboo medicine symbiosis, and belongs to the technical field of environment remediation and resource recycling, the mine remediation system comprises the following modules: a bottom mud targeted activation module for converting polluted bottom mud into a mine remediation matrix through heavy metal gradient passivation and organic matter directional activation treatment; the bamboo-medicine-shrub-arbor three-dimensional configuration module is used for constructing a bamboo forest layer, a medicine layer and a grass-shrub-arbor composite layer in the restoration area to form multi-layer vegetation configuration; the water and soil joint control module is used for monitoring the soil moisture content, the vegetation growth state and the water and soil loss risk in real time and dynamically regulating and controlling the water and fertilizer conditions through an intelligent algorithm; through targeted activation of the bottom mud, composite planting of bamboo and medicine, three-dimensional configuration of grass, shrub and arbor and dynamic regulation and control of water and fertilizer, cooperative treatment of ecological restoration and resource recycling of the mine is achieved.

The invention discloses a hillside orchard intelligent shrub cleaning weeding machine, and relates to the technical field of intelligent agricultural machinery, the core structure of the hillside orchard intelligent shrub cleaning weeding machine is a self-adaptive crawler chassis, the self-adaptive crawler chassis comprises a chassis shell and crawlers on two sides, and the contact area between the crawlers and the ground can be dynamically adjusted through telescopic cooperation of a wheel support hydraulic rod and a tripod and a driven wheel; and the trafficability and the stability of the machine on complex mountain terrains are obviously improved. In addition, the machine is further provided with a deformation mechanism, the levelness of the working mechanism can be automatically adjusted according to the terrain, and stable operation on the sloping field and the rugged terrain is ensured. The control and power system achieves centralized driving control over all power mechanisms, and the operation convenience and the intelligent level are further improved. Through the innovative design of the self-adaptive crawler chassis and the deformation mechanism, the defects in the prior art are effectively overcome, remarkable practicability and innovativeness are achieved, the actual requirement for cleaning the shrubs in the hills and mountains can be met, and a new solution is provided for agricultural mechanization development.

The invention relates to the field of urban green land evapotranspiration zoning, in particular to an urban green land surface evapotranspiration zoning method and system based on impedance parameters, and aims to distinguish arbor, shrub and lawn transpiration in an urban green land. The method comprises the following steps: firstly, collecting and preprocessing vegetation morphological parameters, meteorological data, canopy surface temperature, soil heat flux, vegetation transpiration and vortex related flux data; calculating leaf boundary layer impedance and canopy stomatal impedance of each vegetation type by using a backstepping Penman-Monteith formula and an earth surface energy balance equation; determining the proportion of each vegetation type in the flux contribution source area through a flux footprint model, and reversely deducing the total aerodynamic impedance and the total stomatal impedance of the earth surface; solving aerodynamic impedance of each vegetation according to an earth surface energy balance equation and performing fitting correction; and finally, the corrected impedance parameters are substituted into a Penman-Monteith model to calculate the transpiration amount of each vegetation. According to the method, the problem of mismatching between single plant scale data and community scale data is effectively solved, and the evapotranspiration partition calculation precision is improved.

The utility model relates to a supported rock slope greening structure. The method is suitable for the technical field of environmental protection. The technical problem to be solved by the utility model is to provide the green recovery structure for the supported rock slope. According to the technical scheme, the supported rock slope greening structure comprises drip irrigation pipelines which are installed on a slope bedrock face through fixing pieces, arranged in a grid shape and used for irrigating green plants on the slope and providing growth and attachment support for the green plants; the planting holes are formed in the side slope bedrock surface, the planting holes correspond to pipeline nodes of the drip irrigation pipelines, and undershrub plants are planted in the planting holes; the planting frames are arranged on the surface of the side slope, the planting frames correspond to the grids of the drip irrigation pipeline, and climbing plants are planted in the planting frames; the adjusting assembly is arranged in the drip irrigation pipeline and used for controlling an irrigation object of the drip irrigation pipeline.

The invention discloses ardealite-based vegetation concrete and a use method thereof.The ardealite-based vegetation concrete is prepared from, by mass, 40%-50% of sand clay, 15%-20% of organic nutrient soil, 15%-20% of ardealite, 1.5%-2.5% of cement, 0.2%-0.5% of a water-retaining agent, 0.15%-0.20% of a microbial agent and the balance water; the use method is three-stage spray seeding, standing needs to be conducted for 15-30 min after spray seeding is completed each time, and herbal seeds and shrub seeds are added into the ardealite-based vegetation concrete during spray seeding in the third stage. According to the method, a large amount of ardealite is consumed, the coverage rate of plant communities is increased, and rapid restoration of the side slope is achieved.

The invention provides a vegetation restoration method and system for an eroded shallow trench in a loess area, and the method comprises the steps: 101, carrying out the topographic survey, and obtaining the topographic data; step 102, carrying out soil sampling analysis; step 103, acquiring hydrological data for many years, and determining a shallow trench area in which water and soil loss easily occurs; 104, sequentially planting arbors, shrubs and herbaceous plants from top to bottom on the ditch slopes on the two sides of the determined shallow ditch area in the horizontal direction of the ditch slopes, and arranging gabion boxes at the ditch edges; the gabion boxes are arranged along the ditch edge direction; step 105, planting periploca sepium and herbaceous plants and laying ecological bags at the ditch bottom of the determined shallow ditch area from top to bottom in sequence according to the water flow direction; wherein the ditch bottom is provided with a horizontal step, and the periploca sepium bunge is planted in the horizontal step in a row; and the horizontal step is vertical to the groove edge. Therefore, organic fusion of an engineering structure and vegetation growth is achieved, a long-acting and stable erosion prevention and control system is formed, a shallow trench development channel is effectively blocked, and gradual recovery of regional ecological functions is promoted.

The invention discloses a high-salinity desert region pioneer vegetation rapid planting method based on salinity gradient regulation and control, and relates to the technical field of vegetation planting. The method can effectively regulate and control gradient distribution of salinity in the high-salinity desert region, reduce salt stress of a root zone, improve the seed germination rate and the seedling survival rate of pioneer vegetation, effectively inhibit surface salinity accumulation and optimize moisture distribution, thereby promoting rapid field planting and healthy growth of vegetation; by constructing a stable salinity gradient and moisture regulation and control system, through a micro-irrigation system and a mixed matrix layer, the moisture utilization efficiency is optimized, the fresh water consumption is reduced, the vegetation coverage is improved, the soil erosion risk can be reduced, the stress resistance of an ecological system is enhanced, and the vegetation coverage is rapidly improved in a short time; finally, the desert region is promoted to succession towards a multi-layer and stable arbor-shrub-grass community structure, the soil fertility and the microclimate environment are improved, the stability and the wind erosion resistance of an ecological system are enhanced, and reliable technical support is provided for sustainable ecological restoration.

The invention relates to the technical field of ecological restoration and water and soil conservation, and discloses a wind prevention and sand fixation forest restoration method and system based on a forestry and agriculture compound system. The method comprises the following steps: deploying a distributed wind sand environment sensing node array, constructing a local wind field dynamic evolution model, and identifying a potential wind erosion hot spot region; generating a dynamic forest belt adjustment instruction based on the identification result, and controlling the deployment position and density of the movable shrub barrier unit; forestry and agriculture composite planting regulation and control are synchronously implemented, deep-root-system sand-fixing plants are arranged in a core protection zone, herbaceous plants are mixed and sown in a transition zone, and economic crops are crop-rotated in a peripheral zone; and the self-adaptive reconstruction of the forest belt structure is realized by continuously monitoring the change of the sand grain flux and feeding back the parameters of the optimization model. Through dynamic sensing, prediction and intervention mechanisms, the wind prevention and sand fixation efficiency is remarkably improved, ecological restoration and farmers and herdsmen livelihood are considered, the actually measured wind erosion hot spot area is reduced by 68%, and the ground surface sand transport rate is reduced by 82%.

The invention discloses a plant live sand barrier sand prevention system. The plant live sand barrier sand prevention system comprises an arch-shaped live sand barrier sand blocking belt, a triangular live sand barrier sand fixing belt and a grid-shaped live sand barrier sand fixing belt which are sequentially arranged in the main wind direction, and the arch-shaped live sand barrier sand blocking belt, the triangular live sand barrier sand fixing belt and the grid-shaped live sand barrier sand fixing belt are arranged in a strip shape and are parallel to one another. Each strip extends in the direction perpendicular to the main wind direction. According to the plant live sand barrier sand prevention system, the structures and functions of plant sand barriers and mechanical sand barriers are combined into a whole, near-surface blank areas among plant shrubs are filled through plant division generated through the layering propagation technology, the wind resistance and sand storage functions are high, and the good sustainable biological sand fixation effect is achieved.

The invention discloses a method for restoring a slope ecological structure based on forest burning background, and belongs to the technical field of water and soil conservation and ecological restoration. Burnt vegetation and slope surfaces are cleaned, the burnt slope surfaces are recombined, a three-layer vegetation structure, namely an arbor structure, a shrub structure and a herbaceous structure is determined to be formed, six soil structures are constructed, and the slope ecological structure is restored. A water supply and drainage network is formed on the slope surface penetrating through the gravel layer, the global water supply and drainage function is achieved, and different vegetation species are selected for planting according to the actual situation of the area and in combination with the three-layer vegetation structure; the fire-proof plant wall has the advantages of simple materials, use of local materials, good utilization of burnt fire waste materials, economy, feasibility, good bearing capacity, ecological environmental protection, high stability and the like, can effectively solve the problem that the ecology is difficult to recover after a fire, provides a stable growth environment for plants, and has a wide application prospect. The structure expands the application range of slope ecological restoration after the fire, and can better adapt to slopes with the gradient smaller than or equal to 60 degrees.

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

The invention discloses a shrub biomass evaluation and prediction method based on remote sensing data, and relates to the technical field of shrub biomass prediction. Environment information of the target area is obtained, and a shrub environment similarity coefficient of the target area is analyzed based on the environment information of the target area; selecting a model for evaluating and predicting the shrub biomass in the target area according to the shrub environment similarity coefficient as a target model; evaluating and predicting the biomass of the target area according to the preprocessed remote sensing data of the target area and the target model; therefore, when the shrub biomass evaluation prediction is carried out on the new area, whether the existing shrub biomass evaluation prediction model is selected to carry out shrub biomass evaluation prediction on the new area or not can be determined according to the actual condition, so that the difference between the shrub biomass evaluation prediction result of the new area and the actual shrub biomass evaluation prediction result is small; and the influence on ecological monitoring and environmental protection effects of the shrubs is reduced.

The invention discloses a vegetation biomass monitoring method fusing unmanned aerial vehicle hyperspectrum and Sentinel-2, and belongs to the field of ecological remote sensing information processing. In order to break through the data fusion bottleneck, a sample plot sample is collected to measure biomass, and a shrub different-speed growth equation is constructed; preprocessing the hyperspectral image of the unmanned aerial vehicle; segmenting and identifying grassland and shrubs; extracting feature inversion single-year biomass; constructing a buffer area to obtain sample plot AGB reference data; training the model by using a Sentinel-2 image; and long-time-sequence monitoring is realized through batch inversion. The method breaks through the bottleneck of data fusion, improves the inversion precision and generalization ability, reduces the cost, and supports long-time-sequence dynamic monitoring and multi-scene application.

The invention discloses an arbor, shrub and grass-land and aquatic coordinated multilayer habitat transformation and restoration device and method. The device comprises a mobile vehicle body, a land restoration unit arranged on the mobile vehicle body and an aquatic organism putting unit connected with the mobile vehicle body; wherein the land remediation unit comprises a planting mechanism arranged on the mobile vehicle body; the planting mechanism comprises a lifting device connected with a bearing frame, a drill rod is arranged on the bearing frame, a water suction opening is formed in the lower end of the drill rod, a negative pressure pipe is arranged in the drill rod, and one end of the negative pressure pipe is communicated with a negative pressure drainage part; the output end of the first rotating device is in transmission connection with the negative pressure drainage part and further in transmission connection with the drill rod. Through cooperation of the land remediation unit and the aquatic organism putting unit, comprehensive remediation of an ecological system of a remediation area is achieved, when the planting pits are dug, the negative pressure drainage part pumps out accumulated water in the planting pits through the water suction openings and the negative pressure pipes, and it is prevented that the accumulated water influences follow-up seedling planting in the planting pits.

The invention discloses an ecological base material suitable for ecological restoration of a high and steep rock slope and an ecological restoration method and application of the ecological base material, the ecological base material comprises the following raw materials: a matrix component, a reinforcing component and plant seeds, and the matrix component comprises the following raw materials in parts by weight: 40-50 parts of local loam, 6-10 parts of organic matter, 3-5 parts of a water-retaining agent and 2-4 parts of a pH regulator; the reinforcing component comprises the following raw materials in parts by weight: 15 parts of a fiber material, 5-8 parts of a binder, 3-5 parts of a slow release fertilizer and 0-0.1 part of a modifier; the plant seeds comprise herbaceous plants and shrubs, the herbaceous plants comprise cynodon dactylon and festuca arundinacea, and the shrubs comprise magnolia floribunda and lespedeza, specifically, 0.4 part of cynodon dactylon, 0.3 part of festuca arundinacea, 0.15 part of magnolia floribunda and 0.05 part of lespedeza. According to the ecological base material and the ecological restoration method thereof, the site conditions of the high and steep slope can be met, vegetation can be attached to the surface of the slope body easily, the rock and soil conditions of the surface of the high and steep rock slope are improved, and development and implementation of ecological restoration are facilitated.

The invention provides an urban green land carbon storage and sink quantification method based on remote sensing and field investigation, and relates to the technical field of environmental science and engineering, remote sensing technology and ecological assessment, and the method comprises the steps: obtaining a high-definition remote sensing image, combining a green land planning file, determining the distribution of various types of green lands, calculating an NDVI, and extracting an effective green land space; and generating a sampling point scheme according to the area proportion. Growing parameters of arbors and shrubs in the quadrat are investigated on site, biomass is calculated and converted into carbon reserves, an NDVI and carbon density model is established, and a carbon density spatial distribution diagram is generated. And constructing a carbon sink model based on the relationship between the age of the arbor and the carbon reserves, calculating the annual carbon sink, establishing a relationship model between the NDVI and the carbon sink, and generating a carbon sink spatial distribution diagram. And integrating the two diagrams to output carbon storage and sink capability evaluation results of different green land types, thereby providing a scientific basis for urban ecological planning.

The invention discloses a forest fire danger early warning system and method based on meteorological and vegetation data analysis, and relates to the technical field of fire risk prediction and control. According to the forest fire danger early warning system and method based on meteorological and vegetation data analysis, fine grid division is carried out on a target forest area through a high-resolution DEM and a multispectral or hyperspectral image, and vegetation type identification is carried out on each monitoring subunit; calculating a wet-dry cycle index WDI, a monsoon effect index MFI and a dry thunderstorm risk factor DRF by combining hourly wind speed, wind direction, relative humidity, precipitation and vapor pressure difference meteorological data; through extracting canopy height, canopy density, under-forest shrub and grass layer thickness and high VOC tree species coverage rate, fuel continuity coefficient FCI and volatile matter flammability index VEI are calculated, and accurate quantification of continuity and flammability of vertical ladder fuel and horizontal canopy is realized. And a comprehensive fire danger index FFI is constructed and subjected to hierarchical management after judgment, so that the dynamism, the hierarchical property and the pertinence of fire danger early warning are realized, and the forest fire danger prevention and control precision and the patrol resource utilization efficiency are improved.

The invention relates to the technical field of ecological management, and particularly discloses an ecological restoration system and method for a water-level-fluctuating zone of a lake reservoir. The ecological restoration system is divided into a land area shoreline subsystem, a constant water level to high water level area subsystem, a constant water level to low water level area subsystem, a lake and reservoir water surface area wetland subsystem and a river inflow lake mouth pollution interception and precipitation subsystem, and multi-gradient and zonal ecological restoration from the constant water level to the high water level and the low water level is achieved. Through the multi-layer combined ecology of submerged plants, emergent aquatic plants, wet woody plants and indigenous trees, shrub and grass, a composite community system with a stable structure is formed, vegetation coverage of the hydro-fluctuation zone can be maintained throughout the year, repeated planting and restoration are not needed, a large amount of maintenance cost is saved, and the method is suitable for lake and reservoir hydro-fluctuation zones with different landforms and water level change characteristics in the whole country.

The invention relates to the technical field of municipal greening engineering, in particular to a municipal engineering greening irrigation system which comprises an irrigation assembly, a sensing assembly, an impurity removal assembly and a control assembly, the irrigation assembly comprises an equipment base, and a rubber corrugated pipe is fixedly connected to the upper surface of the equipment base; two electric telescopic rods are fixedly mounted on the upper surface of the equipment base, lifting adjusting plates are fixedly connected to the telescopic ends of the two electric telescopic rods, the two electric telescopic rods are symmetrically distributed on the left side and the right side of the rubber corrugated pipe, and conical flow guide covers are fixedly connected to the opposite ends of the two lifting adjusting plates. According to the invention, by arranging the multi-dimensionally adjustable irrigation assembly, the different requirements are met, and the irrigation requirements of plants with different heights, such as arbors, shrubs and herbaceous plants, are flexibly adapted; the irrigation range can accurately cover each part of a greening area, the problems of coverage dead angles and fixed range of traditional fixed spray irrigation are solved, and local overwetting or drought is avoided.

The invention relates to the field of berry picking, and discloses an automatic shrub berry picking device which comprises a self-correcting mechanism, a picking mechanism, a collecting mechanism, a conveying mechanism, a power mechanism and a sorting mechanism. The self-correcting mechanism is used for correcting the deviation of the power mechanism in the walking process; the collecting mechanism is used for collecting berries picked by the picking mechanism, and the collecting mechanism is fixed on the power mechanism; and the conveying mechanism is used for conveying the berries collected by the collecting mechanism to the sorting mechanism for automatic sorting. According to the scheme, the picking device has the self-correcting steering and sorting functions, picking is conducted in a rotary vibration mode and a shaking vibration mode, the picking efficiency is high, the breakage rate is low, the picking net rate is high, plant damage is small, adaptability is high, modular design is achieved, and different berries can be picked.

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