389 results about "Grassland" patented technology

The invention belongs to the technical field of genetic breeding, and particularly relates to application of a molecular marker for breast circumference character breeding of grassland short-tailed sheep, the molecular marker is at least one of the following (1)-(3): (1) a nucleotide sequence as shown in SEQ ID NO.1, nucleotide at the 101bp site is A or G; (2) a nucleotide sequence as shown in SEQ ID NO.3, wherein the nucleotide at the 101bp site is C or A; (3) a nucleotide sequence as shown in SEQ ID NO.5, wherein the nucleotide at the 101bp site is T or C; the application refers to any one of the following steps: identifying the chest circumference of the grassland short-tailed sheep; the chest circumference of the offspring of the grassland short-tailed sheep is improved. By detecting the genotype of the molecular marker and selecting a dominant genotype individual as a parent, the average chest circumference of offspring can be effectively improved, and a reliable tool is provided for realizing molecular assisted breeding and precise genetic improvement of the chest circumference character of the grassland short-tailed sheep.

The invention discloses a data processing method for grassland bearing capacity dynamic evaluation and grazing planning, and belongs to the technical field of grassland ecological management, animal husbandry production informatization and data intelligent decision making. Aiming at the technical problems that a traditional static evaluation method neglects grassland productivity dynamic change and a grazing feedback effect, so that the resource utilization efficiency is low and grassland degradation is easily caused, the method dynamically predicts grassland bearing capacity and optimizes a grazing plan through iterative circulation, recursive calculation is carried out in combination with meteorological data and grazing consumption, and the grassland bearing capacity is evaluated. Collaborative optimization of the bearing capacity threshold value and the grazing plan is achieved, and rolling updating is supported. The method can be used for generating a scientific and dynamic grazing scheme, and the utilization efficiency and ecological sustainability of grassland resources are improved.

The invention discloses a grassland desertification intelligent closed-loop management method and system based on multi-source remote sensing, and belongs to the technical field of ecological restoration and intelligent decision making. According to the method, technical breakthrough is realized by constructing an intelligent closed loop of perception, cognition, decision and optimization: firstly, multi-source data are fused to construct a dynamic ecological knowledge graph, and a desertification cause diagnosis report for quantifying the contribution rate of each driving factor is generated based on graph reasoning; calling a governance measure knowledge base to generate a scheme according to a diagnosis result, and optimizing a decision through digital twinborn rehearsal; finally, based on treatment effect feedback, the knowledge base is dynamically optimized through reinforcement learning; the corresponding system comprises a multi-source perception fusion module, an ecological cognitive diagnosis module, a decision rehearsal execution module and a self-learning optimization module. According to the method, the bottleneck of lack of causal diagnosis and system stiffness of a traditional method is overcome, the crossing from passive monitoring to active cognition and from static decision to dynamic self-learning is realized, and an innovative solution is provided for treatment of a degraded ecological system.

The invention discloses a synchronous fertilization type grass seed reseeding device based on alpine grassland ecological restoration, and relates to the technical field of agricultural machinery, the synchronous fertilization type grass seed reseeding device comprises a mounting plate, the front end of the mounting plate is fixedly provided with a slotting seeding mechanism, and the top end of the slotting seeding mechanism is fixedly connected with a seed storage box I; by means of the layered design of exclusive sowing of deep large particles, independent sowing of shallow small particles and accurate synchronous fertilization, quantitative regulation and control, linkage driving and a high and cold environment adaptation structure are matched, so that the high and cold environment can be accurately and rapidly sown, and the high and cold environment can be accurately and rapidly sown. The device fundamentally solves the nonuniform problem of local enrichment of small particles and sparse distribution of large particles during mixed seeding of a traditional device and the contradiction of nutrient competition, successfully realizes the three-dimensional remediation effect of rapid coverage of shallow small particles and long-term stability of deep large particles, and meanwhile, adapts to special environments of high and cold low temperature and complex soil, and has a wide application prospect. And the reseeding efficiency and stability are obviously improved.

The invention relates to the technical field of grassland ecological evaluation, in particular to a dynamic reference index calculation method and system for grassland ecological quality evaluation. The method comprises the following steps: acquiring historical reference data of a non-degraded sample plot covered with different interference degrees in a target area, and constructing a reference system time sequence prediction model based on the historical reference data; based on pre-acquired historical monitoring data of a to-be-evaluated grassland, utilizing the reference system time sequence prediction model to obtain a dynamic reference index potential value; extracting an interference factor from the historical reference data, and setting an interference weight for the interference factor; and correcting the potential value of the dynamic reference index by using the interference weight based on the historical monitoring data and the historical reference data to obtain the dynamic reference index. The problem that in the prior art, a fixed reference index is difficult to dynamically respond to the change of the environment, so that the evaluation of the ecological condition of the grassland is inaccurate is solved, and the scientificity of reference index calculation is greatly improved.

The invention relates to the technical field of livestock molecular genetic breeding, in particular to application of a molecular marker for grassland short-tailed sheep body weight character breeding, the molecular marker is a nucleotide sequence as shown in SEQ ID NO.1, and nucleotide at the 101bp site is G or A; the application refers to any one of the following steps: identifying the weight of the grassland short-tailed sheep; the body weight of the grassland short-tailed sheep offspring is improved. The SNP molecular marker obviously related to the body weight character is identified on the 24 # chromosome of the grassland short-tailed sheep for the first time. The molecular marker can be used for genotype detection in a young sheep stage or an embryo stage, and does not need to wait for stable phenotype when the sheep grow to an adult stage, so that the breeding cycle is shortened, and the genetic progress is remarkably accelerated. The technical blank in the field of grassland short-tailed sheep body weight character molecular breeding is filled, and a reliable molecular tool and technical support are provided for efficient, accurate and sustainable breeding of the breed.

The utility model provides a kind of for perennial grassland grass's cultivation device, convenient to use, through supporting framework, embedded cultivation component and water supply component, the positioning growth of perennial grassland grass is realized, through cultivation component and water supply component, integrated in supporting framework, improve cultivation space utilization, simultaneously provide a efficient comprehensive growth environment for perennial grassland grass, solve the problem of uneven cultivation board and nutrient solution spraying in current traditional cultivation device.

The utility model provides a grassland stem girth measuring device for ecological restoration, which comprises a handle, a measuring device and a measuring device, the winding assembly is arranged on the inner side face of the mounting cavity; the measuring tape is wound on the outer side face of the winding assembly, and one end of the measuring tape extends to the outer side face of the handle; the caliper is arranged at one end of the handle, and the winding assembly comprises a rotating shaft and a torsional spring. According to the grassland stem circumference measuring device for ecological restoration, through mutual cooperation of the handle, the rolling assembly, the measuring tape, the caliper and other structures, when the grassland plant stem circumference is measured, the thick stem circumference and the thin stem circumference can be measured by a user through the measuring tape and the caliper respectively, the user does not need to carry many measuring tools, and the measuring efficiency is improved. Not only is the use of a user facilitated, but also the burden of workers is reduced.

The invention discloses a soil loosening and reseeding machine for treating and repairing degraded grassland through mixed seeding of various pasture, belongs to the technical field of soil loosening and seeding, and provides the following scheme that the soil loosening and reseeding machine comprises a seeding mechanism, a soil loosening mechanism is arranged on the seeding mechanism, the seeding mechanism comprises an upper support, and two seeding adjusting assemblies are arranged on the upper support; through transmission of the driving assembly and the arc-shaped toothed bar, the soil loosening assemblies can be transversely unfolded side by side, the soil loosening area is increased, the soil loosening efficiency is improved, the soil loosening assemblies can be vertically combined, meanwhile, through transmission of the soil loosening adjusting assembly and the rack, the soil loosening assemblies are distributed in a stepped mode, the soil loosening mode with the front shallow and the rear deep is formed, and the soil loosening difficulty is reduced; according to the mode, through flexible switching arrangement of the soil loosening assemblies, the soil loosening requirements of soft soil and hard soil are met, efficient adaptation of soil with different hardness is achieved, and the pertinence and the effect of soil loosening operation of degraded grassland are improved.

The invention relates to the technical field of ecological management and livestock grazing, in particular to a method for improving grassland productivity stability based on multi-animal-species sequential differentiation grazing in different growth stages of plants and application of the method. The multi-animal-species time sequence differentiation grazing method based on different growth stages of plants comprises the following steps: (1) selecting low-ingestion-selectivity livestock for grazing from a pasture elongation stage to seed maturation; and (2) from the mature period to the withered and yellow period of the forage grass seeds, selecting high-ingestion-selectivity livestock for grazing. According to the grazing method, the spatial environment difference and the species response difference of the grassland can be enhanced, so that the functional asynchronism and the ecological diffusion capability of plant communities are improved, and a basis is provided for sustainable development of ecological animal husbandry.

This invention provides a simulation method based on the functional attributes of forest and grassland communities, comprising: acquiring community survey data and individual plant functional trait data of the target forest and grassland vegetation; calculating the functional attributes of the plant community; acquiring the actual values ​​of key hydrological parameters corresponding to the target forest and grassland vegetation; training the model using a random forest algorithm to construct a nonlinear mapping model; integrating the nonlinear mapping model into a parameterized process and outputting the simulation results. The hydrological simulation method based on the functional attributes of forest and grassland communities provided by this invention establishes a nonlinear mapping relationship between these ecological attributes and key hydrological parameters using a random forest algorithm, thereby dynamically driving the simulation of regional hydrological processes. This achieves a refined characterization of the mechanism by which vegetation community structure and function affect hydrological processes, significantly improving the simulation accuracy of the model in scenarios such as vegetation restoration and configuration optimization.

The invention discloses a desert steppe grass interspecific synergistic agent and a preparation method and application thereof, and relates to the technical field of synergistic agents, the synergistic agent comprises the following raw materials by weight: 30-40 parts of modified cyanobacteria charcoal, 10-15 parts of a microbial fertilizer, 20-30 parts of an organic fertilizer, 10-20 parts of an inorganic fertilizer, 1-2 parts of a plant growth regulator, and 2-5 parts of a water-retaining agent; the modified blue-green algae charcoal is prepared from the following raw materials in parts by weight: 15-30 parts of ferrous sulfate heptahydrate, 15-30 parts of ferric sulfate hydrate, 200-400 parts of water and 10-20 parts of blue-green algae powder. The synergist provided by the invention can effectively improve the growth efficiency of desert grassland grass planting and effectively improve the treatment effect of degraded grassland.

The application discloses a piston type quantitative grassland fertilizing device and relates to the field of fertilizing devices. The piston type quantitative grassland fertilizing device comprises a fertilizing tank, a stirring assembly installed in the fertilizing tank and used for stirring fertilizer solution in the fertilizing tank, a detection assembly installed on the stirring assembly and used for detecting the dissolution degree of solid fertilizer in the fertilizer solution, and a piston cylinder installed in the fertilizing tank, wherein a liquid inlet pipe and a liquid outlet pipe are connected to the piston cylinder, one-way valves are installed in the liquid inlet pipe and the liquid outlet pipe, and the liquid outlet pipe penetrates through the fertilizing tank. Through the arrangement of the stirring assembly, solid waste can be effectively stirred, and the situation that solid fertilizer is not completely dissolved due to deposition is reduced. Meanwhile, through the arrangement of the detection assembly, whether the fertilizer solution still contains solid fertilizer can be detected, the subsequent use of the grassland fertilizing device is facilitated, and the situation that the concentration of the fertilizer solution is insufficient is avoided.

The application relates to the technical field of remote sensing mapping, in particular to a remote sensing mapping method for a karst rocky desertification treatment grassland, which comprises the following steps: obtaining remote sensing images and DEM data of a target karst region; quantifying the shadow shielding possibility, vegetation confidence and vegetation density of a pixel based on the radiation brightness, spectral reflectance change trend of the remote sensing images and DEM topographic features, and then adaptively constructing an adjustment factor for correcting a soil-adjusted vegetation index; and calculating the soil-adjusted vegetation index at each pixel according to the adjustment factor, so as to draw a remote sensing vegetation map of the target karst region. The adjustment factor is adaptively determined by constructing a shadow vegetation characteristic value, the problem that the existing technology cannot distinguish between dense shadow vegetation and bright sparse vegetation under the complex karst topography due to the use of a unified adjustment factor is solved, and the precision and reliability of vegetation mapping in a karst rocky desertification treatment area are improved.

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

The invention discloses a movable steppe pesticide spraying irrigation vehicle, and relates to the field of steppe pesticide spraying, the movable steppe pesticide spraying irrigation vehicle comprises an irrigation vehicle main body, the irrigation vehicle main body is fixedly connected with a mixing water tank, the mixing water tank is rotatably connected with a mixing pipe, and the outer surface of the mixing pipe is fixedly connected with a plurality of stirring plates. The mixing pipe is driven to rotate by rotating the driving part, the mixing pipe drives the stirring plate to preliminarily stir medicine and water in the mixing water tank, and then the preliminarily mixed medicine liquid is introduced into the water inlet pipe by the second water pump and then enters the mixing pipe. Meanwhile, the driving shaft drives the water inlet pipe to rotate, and the stirring shaft rotates along with the water inlet pipe to stir liquid medicine in the mixing pipe. As the rotation directions of the mixing pipe and the water inlet pipe are opposite, and the first stirring rod and the second stirring rod have opposite stirring forces, the liquid medicine is fully mixed in the mixing pipe, and collision is generated at the central position for further mixing. And through the reciprocating circulation, non-uniform mixing of the pesticide and water is effectively prevented, and subsequent pesticide spraying uniformity is ensured.

The application discloses a grassland seed rain collecting device, belongs to the technical field of seed rain collecting, and can solve the problems of instability, easy aging and breaking, great influence of extreme weather conditions and terrain, and time-consuming and labor-consuming installation and sampling of the existing grassland seed rain collecting device under field conditions. The device comprises a capturing layer, a plurality of hollow lattices are arranged on the capturing layer, and a capturing structure is arranged on each hollow lattice; each hollow lattice is provided with a pore between the corresponding capturing structure, and the seeds captured by the capturing structure can fall from the capturing layer through the pore; a collecting layer is arranged below the capturing layer, is a water-permeable structure, and is used for collecting the seeds falling from the pore; an isolation layer is arranged below the collecting layer, is used for isolating the contact between the collecting layer and the ground, and is provided with a plurality of water leakage holes, the water leakage holes are used for discharging the water falling on the isolation layer; and a fixer is used for fixing the capturing layer, the collecting layer and the isolation layer on the ground. The application is used for seed rain collecting.

The invention relates to a reseeding device for ecological restoration and treatment of degraded grassland grassland. The reseeding device comprises a vehicle body, a roll shaft, sparse teeth, a first driving part, a crushing assembly, an induced draft fan, an air inlet cover, a discharging pipe and a seeding assembly, according to the device, a first driving part drives sparse teeth to rotate by driving a roller shaft, withered grass attached to the ground is hooked and pulled up, an induced draft fan works at an air inlet cover to form a negative pressure area, the withered grass is sucked into a smashing assembly under the action of negative pressure to be smashed, and grass seeds are sown on the ground through a sowing assembly. The crushed withered grass particles are blown to the ground from the discharge pipe under the wind action of the induced draft fan, and after the withered grass particles covering the ground are decomposed by microorganisms, the granular structure of soil can be increased, the water retention, fertilizer retention and ventilation capacities of the soil are improved, rich nutrient elements such as carbon, nitrogen and potassium are provided for growth of grass seeds, and the quality of the grass seeds is improved. The ecological restoration effect of the degraded grassland grassland is improved.

The utility model discloses a grassland irrigation device for grassland-light complementation, relates to the technical field of grassland-light complementation systems, and aims to solve the technical problem that the current irrigation device is inconvenient to carry out variable irrigation on water source demand quantity according to different areas of grassland under a photovoltaic panel. The irrigation pipeline is composed of the first rectangular pipe, the second rectangular pipe, the third rectangular pipe and the fourth rectangular pipe, and the first rectangular pipe, the second rectangular pipe, the third rectangular pipe and the fourth rectangular pipe are sequentially sleeved from outside to inside. And the pipe diameters of the connecting pipes between the first rectangular pipe and the second rectangular pipe, between the second rectangular pipe and the third rectangular pipe and between the third rectangular pipe and the fourth rectangular pipe are sequentially reduced, and the water pressure is gradually reduced due to the reduction of the pipe diameters of the connecting pipes, so that the water pressure in the first rectangular pipe, the second rectangular pipe, the third rectangular pipe and the fourth rectangular pipe is also gradually reduced.

This invention discloses a system and method for assessing the ecological function of mountain grasslands based on multi-source data fusion, belonging to the field of ecological environment monitoring and intelligent assessment technology. The method includes the following steps: performing a regional scan of the target mountain grassland area before ecological function assessment; extracting surface reflection change trajectories by combining seasonal time periods, topographic slope aspect, and illumination angle parameters; establishing a surface reflection change database; and generating a snowmelt difference list based on the surface reflection change database. This invention achieves accurate separation of reflection signals and synchronous illumination correction under complex terrain through multi-source data fusion and spatiotemporal dynamic correction, eliminating false greening interference; and maintains the energy and temporal stability of reflection data through clean image sets and dynamic sampling control, thereby improving the authenticity and scientific rigor of mountain grassland ecological function assessment.

The invention discloses a method for recovering vegetation of a mildly-degraded Coilin grassland. The method comprises the following steps: S1, investigating plant community characteristics and biomass; s2, determining the quality of the forage grass in the plant community; s3, collecting a soil sample; s4, reseeding: grass seeds are reseeded on the mildly degraded Coilin grassland, the reseeded grass seeds are agropyron perennioides and adsura adsura, and the mass ratio of the agropyron perennioides to the adsura adsura is (6-8): (2.5-3.5); the reseeding amount is 10-20 kg / hm < 2 >; s5, fertilization: applying a fertilizer bag, the fertilizer bag being a nitrogen-phosphorus-potassium mixed fertilizer, the nitrogen-phosphorus-potassium mixed fertilizer comprising a nitrogen fertilizer, a phosphorus fertilizer and a potash fertilizer, according to the plant community conditions of the mildly degraded Coilsein grassland, through reseeding and reasonable fertilization, the monoennial and biennial plants, perennial gramineae, hybrid grass and perennial leguminous plants of the Coilsein grassland can all grow, the yield of the Coilsein grassland is increased, and the yield of the Coilsein grassland is increased. And the pH value of the soil tends to be neutral, so that the mildly degraded Coilin grassland vegetation is recovered.

The invention discloses a molecular sequence and a primer for sex identification of grassland caterpillars and application of the molecular sequence and the primer. The nucleotide sequences of the molecular marker are as shown in SEQ ID NO: 1 and SEQ ID NO: 2; wherein a nucleotide sequence as shown in SEQ ID NO: 1 is female, and a nucleotide sequence as shown in SEQ ID NO: 2 is male. The invention also provides a primer group for amplifying the molecular fragment, and the nucleotide sequences of the primer group are shown as SEQ ID NO: 3 and SEQ ID NO: 4. Wherein the size of a strip capable of being amplified by a female individual is 484 bp, and the size of a strip capable of being amplified by a male individual is 199 bp. According to the molecular marker and the primer group provided by the invention, sex identification can be carried out on grassland caterpillars, larvae, incomplete pupae and cocoons with unknown sex, the accuracy is high, the speed is high, and a reliable method is provided for monitoring the field sex ratio of the grassland caterpillars.

A field maintenance vehicle (1) for the maintenance or restoration of a grassland area (2), in particular a nutrient-poor grassland area, preferably a dry grassland area, comprising: a cutting device (3) for separating vegetation (4), in particular woody vegetation, from the existing or restored grassland area (2); and a conveying device (5) for conveying vegetation (4) separated from the existing or restored grassland area (2) by the cutting device (3) into a collection device (6) on the field maintenance vehicle, wherein: the conveying device (5) is designed as a flow generation device or includes one; and the field maintenance vehicle (1) comprises a tracked undercarriage (16) equipped with at least one track (15); and a shredding device (13) and / or the flow generation device, at least in sections.in an area between a front boundary (30) of the surface maintenance vehicle (1) without the cutting device (3) and a rear of the surface maintenance vehicle (1), wherein the cutting device (3) is configured to cut woody vegetation (4) with a maximum diameter of 10 cm, wherein the conveying device (5) and / or the shredding device (13) is arranged at least sectionally above the first third of the height (29) of the surface maintenance vehicle (1).

The invention relates to the technical field of natural resource protection and ecological system management, and discloses a method and a system for constructing a three-dimensional dynamic model of forest grass wet and waste areas based on digital twinning, and the method comprises the steps: obtaining multispectral image data and environment readings of forest, grassland, wetland and desert areas; performing feature data primary processing to obtain vegetation coverage information and environment variable data; performing species distribution boundary labeling to obtain a species distribution boundary; performing pattern correlation analysis to obtain a preliminary relation matrix; if the association strength of the water level parameter and the desertification parameter in the preliminary relation matrix is higher than a preset strength threshold value, calculating a correction coefficient of the water level parameter and the desertification parameter; carrying out weight balance to obtain a balance relation matrix; time sequence deviation detection and stability verification are carried out, and an ecological change simulation framework is determined. According to the method, comprehensive analysis of complex ecological systems such as forests, grasslands, wetlands and deserts can be realized, and dynamic monitoring and protection are carried out.

The present application relates to a kind of grassland vegetation coverage measuring device and measuring method, device includes connecting column, lifting mechanism, host computer and camera, host computer is connected with lifting mechanism and camera communication;Connecting column includes vertical connection column and cross bar, column one end is fixed on ground, host computer is installed on column;Lifting mechanism includes lifting block and telescopic machine, the output shaft of telescopic machine connects lifting block, the top of lifting block is equipped with guide shaft, the one end of cross bar is equipped with with guide shaft cooperation installation guide hole, camera is connected with lifting block;Camera changes observation height according to vegetation type.Compared with prior art, the height of camera is controlled by lifting mechanism in the present application, when using, camera hangs under cross bar to collect information, when height needs to be adjusted, telescopic machine can be started by host computer or remote signal control, drive camera to rise or fall, so as to change the effect of camera height control collection range, and the measuring effect is better.

The embodiment of the utility model provides a grassland fireproof belt harvesting device which comprises a chassis, and a moving module is arranged on the chassis for moving; the soil loosening module is arranged on the vehicle head and used for loosening soil on the roots of the pasture; the conveying module is arranged on the chassis and is provided with a clamping gap, and the forage grass is arranged in the clamping gap and is pulled out from the soil under the driving of the conveying module; the pretreatment module comprises a waste leaf cutting device, a mud beating device and a smashing device, waste leaves of forage grass can be accurately cut off in the transportation process, most of mud at the roots of crops can be beaten and cleaned away, the cut waste leaves are fed into the smashing device to be smashed, and the smashed leaves are returned to the field; and the collecting module and the loading module are arranged at the tail of the vehicle and cooperate with each other to realize loading of the pasture, so that the transportation efficiency is greatly improved. The steppe fireproof belt harvesting device provided by the utility model gives consideration to environmental protection and resource recycling, can solve the pasture harvesting problem under various complex terrains and special environments, and is suitable for the technical field of agricultural equipment.

The invention provides an external grassland pasture underground root system carbon content monitoring method and system, and relates to the technical field of environment monitoring. The external grassland pasture underground root system carbon content monitoring method comprises the following steps that the earth surface is leveled, and a sampling area is marked on the leveled earth surface; a drilling device is used for drilling in the marked sampling area perpendicular to the earth surface to obtain sampling holes; the drilling device is taken out, a sampling device is inserted into the sampling hole, and a soil sample is obtained from the hole wall of the sampling hole through the sampling device. According to the monitoring method, during sampling, the hole is drilled firstly, then the sample soil is obtained through the hole wall of the sampling hole, the soil damage area is small, the sampling intensity is low, the sampling efficiency is high, and the adverse effect on the environment is small.

The application discloses a kind of static meteorological satellite prairie fire high-frequency dynamic remote sensing monitoring method and system, based on static meteorological satellite, wherein static meteorological satellite prairie fire high-frequency dynamic remote sensing monitoring method includes: obtaining static meteorological satellite data, and data preprocessing is generated monitoring area grid data.Based on monitoring area grid data, target pixel in monitoring area grid data is determined.Based on target pixel, fire point pixel is generated.Based on fire point pixel, open fire area is generated.Based on open fire area, output fire monitoring result.By this, the static meteorological satellite prairie fire high-frequency dynamic remote sensing monitoring method of the application can discover and monitor the state of prairie fire with high timeliness and high accuracy rate, and output fire monitoring result.

The utility model provides a grassland seed reseeding device. The grassland seed reseeding device comprises a supporting assembly; the shovel plate is arranged at the bottom of the supporting assembly; the first grip is arranged at the top of one side of the supporting assembly; and the second grip is arranged at the top of the other side of the supporting assembly, sliding grooves are formed in the top and the bottom of the second grip correspondingly, and a movable sleeve is slidably connected to the outer side face of the second grip. According to the grassland seed reseeding device provided by the utility model, the supporting assembly, the shovel plate, the first grip, the storage frame, the second grip, the moving sleeve, the sliding chute, the connecting plate, the elastic piece, the barrier plate, the material guide frame and other structures are matched with one another, so that when the grassland seed reseeding device is used, the operation steps of seed throwing are simplified, manual seed taking and independent throwing are not needed, and the use is convenient. Time and energy are saved, reseeding efficiency is improved, and the requirement for rapid and efficient reseeding in actual production can be met.

This application provides specific primers, rapid detection methods, and applications for detecting root rot of *Imperata cylindrica*. The primer pairs for detecting or assisting in the detection of root rot of *Imperata cylindrica* include primer Rd-F and primer Rd-R. The nucleotide sequence of primer Rd-F is shown in SEQ ID No. 1, and the nucleotide sequence of primer Rd-R is shown in SEQ ID No. 2. This application designs specific primer pairs Rd-F / Rd-R based on the ITS sequence of the root-invasive fungus isolated from the roots of *Imperata cylindrica* in Qinghai Province, and establishes a corresponding PCR detection method for specific identification. Rhypophila deceiving The results show that this method is rapid, specific, sensitive, and easy to operate. It can be used for pathogen detection, early diagnosis, and disease control of *Imperata cylindrica* root rot, providing technical support for precise monitoring and sustainable management of grassland diseases.