179 results about "Soil water" patented technology

The invention discloses an arid region groundwater reserve estimation method and system based on multi-source remote sensing data, and relates to the technical field of groundwater monitoring, and the method comprises the steps: collecting land water reserve data and remote sensing image data of a target arid region, obtaining a land water reserve change sequence according to the land water reserve data, carrying out the region weighting of the target arid region, and obtaining a target arid region groundwater reserve change sequence; obtaining a land water reserve change sequence of the target arid region; based on the remote sensing image data of the target arid region, using a digital elevation model to obtain a surface water reserve change sequence of the target arid region, using a land surface process model to obtain a soil water reserve change sequence of the target arid region, and establishing an underground water reserve model of the target arid region; and performing error analysis on an output result of the groundwater reserve model by using a Monte Carlo simulation method. According to the method, through collaborative inversion of multi-source remote sensing data and integration of the groundwater reserve models, accurate quantification of spatial-temporal dynamic of the groundwater reserves in the arid region is realized.

The invention relates to a power transmission line operation state intelligent identification and analysis method, and belongs to the technical field of power transmission line state analysis. The method comprises the following steps: acquiring soil water content and foundation settlement data in real time, recognizing tower node displacement accumulation and a stress transfer path in combination with environmental factors such as temperature, humidity and wind speed, accurately judging a structural deformation abnormal region, and generating a stress concentration and transfer prediction chart through multi-source data fusion and historical data contrastive analysis. According to the method, the coordinates of potential safety hazard parts are dynamically calibrated, infinitesimal displacement monitoring errors are eliminated, finally, a tower overall structure safety evaluation report and maintenance management measures are output, through full-link data analysis and dynamic calibration, the monitoring precision and early warning capacity of tower stability under geological condition changes are remarkably improved, and safe operation of power transmission facilities is guaranteed.

The invention belongs to the technical field of equipment planning, and discloses an automatic planning method for intelligent agricultural Internet of Things equipment, which comprises the following steps: dividing a target region into grid units, collecting soil moisture parameters and nutrient parameters of each grid, and establishing a regional digital twinborn model; obtaining a target crop of each grid, obtaining growth information from the crop knowledge base, and executing time sequence simulation to generate a water and fertilizer demand table of each grid; executing a water-fertilizer balance strategy based on the water-fertilizer demand table, and generating a water-fertilizer supply plan of each grid; analyzing spatial distribution characteristics of supply plans, and clustering adjacent grids with similar plans into irrigation management partitions; and generating a pipe network topological structure and an equipment planning scheme based on the partition layout. According to the method, a traditional uniformly distributed area is scientifically divided into management subareas with consistent internal requirements, so that unified management of the same subarea is realized, and the problem of supply and demand mismatching caused by neglect of spatial heterogeneity in a traditional method is solved.

The invention relates to the technical field of underground water state evaluation, and discloses an underground water level dynamic evaluation method based on multi-source data mapping and fluid model correction. The invention aims to solve the technical problems of insufficient underground water level monitoring precision and lack of space details caused by low spatial resolution of existing satellite gravity detection data and difficulty in accurately separating a deep underground water change signal from a land total water reserve signal. According to the method, through space-time reference unification of multi-source heterogeneous data, high-resolution surface texture features are utilized to guide a low-resolution gravitational field to carry out space downscaling reconstruction; surface water body and soil water reserve signals are removed layer by layer in combination with spectral characteristics and a thermal inertia principle; and introducing measured data to construct a spatial error correction curved surface of specific yield parameters, and identifying the underground water funnel by using an image connected domain analysis technology.

The invention relates to the technical field of soil engineering model tests, and discloses a test system and method for simulating water and mud bursting of a subsea tunnel under the action of vibration, and the system comprises a multi-degree-of-freedom servo feedback vibration module which is used for providing a multidirectional vibration loading platform and feeding back a motor current signal in real time; the visual rock-soil water inrush simulation and multi-field loading module is mounted above the vibration table and is used for accommodating a sample and applying confining pressure and water pressure load; the hierarchical multi-source data acquisition module is communicated with the discharge port and the observation window, and is used for acquiring the outburst mixture and monitoring physical field data; and the intelligent control and risk assessment analysis module is connected with each module to regulate and control loading parameters and invert a catastrophe state based on feedback data. According to the method, a self-adaptive optimization loading mechanism based on the improved particle swarm optimization algorithm is constructed, so that collaborative progressive regulation and control of pore water pressure and vibration frequency parameters are realized, and a critical threshold point of water inrush and mud inrush catastrophe can be accurately captured.

The invention relates to the technical field of garden irrigation, in particular to a landscaping irrigation intelligent management system based on the Internet of Things, and the system comprises an environment monitoring module which is used for obtaining the real-time environment monitoring data, the real-time irrigation amount and the historical irrigation amount of a landscaping area; the data storage module is used for storing information of different vegetation units in the landscaping area and plant identity information corresponding to the vegetation units, the vegetation unit information comprises water and soil loss amount and soil water storage change amount, and the plant identity information comprises plant species and water amount required by plants; the irrigation prediction module is used for combining the real-time environment monitoring data, the real-time irrigation amount, the historical irrigation amount and the plant identity information through a prediction model to generate a predicted irrigation amount, adjusting the real-time irrigation amount based on the predicted irrigation amount, and generating an irrigation control instruction; the irrigation control module is used for issuing the irrigation control instruction to the corresponding irrigation equipment; and the self-maintenance diagnosis module is used for identifying the execution condition of the irrigation equipment according to the control instruction.

The invention relates to the technical field of digital rural agricultural treatment, in particular to a digital rural agricultural treatment method and system based on artificial intelligence. Obtaining a water demand characteristic parameter of the type of a crop currently planted in the Badzhou field from a crop database; superposing the spatial distribution data of the soil moisture content and the spatial distribution map layer to generate a Badzhou field moisture state map layer; the accurate water supplementing amount of the Badzhou field is obtained through water demand analysis of the Badzhou field with the water stress; an irrigation path is planned according to the position proximity relation and gradient information of all the Buddha fields in the Buddha field moisture state graph layer, and differential irrigation schemes are generated by combining the precise water supplementing amount corresponding to each Buddha field; sending the differential irrigation scheme to irrigation execution equipment, and supplementing water to each palm field; the problem that precise irrigation is difficult due to scattered distribution and large environmental difference of the palm field in the mountainous area is effectively solved.

The invention provides a rock-soil moisture content and permeability testing system and method based on electromagnetic waves and infrared rays, and particularly relates to the technical field of geotechnical engineering testing and multi-source signal detection. According to the test system, construction of a rock-soil permeability experiment is realized through a rock-soil sample permeability test platform, the electromagnetic wave detection module realizes perception of a water-containing state in rock-soil, and the infrared thermal imaging module realizes perception of a wet boundary and seepage expansion characteristics of a rock-soil surface. The data acquisition and control module realizes integral control of a penetration experiment and acquisition of dielectric characteristics and infrared images, the signal fusion and inversion module realizes fusion of the dielectric characteristics and the infrared images and joint inversion of dynamic moisture content and penetration performance, and the result processing and visualization module realizes visual display of an inversion result; the method has the remarkable advantages of non-destructiveness, real-time performance, high spatial resolution, high adaptability, intelligent processing capacity and the like, and comprehensive characterization of the permeability behavior and the moisture content evolution process of the rock and soil sample is achieved.

The invention relates to the technical field of frozen soil hydrothermal coupling, in particular to a frozen soil hydrothermal coupling model based on a physical information neural network, which comprises the following steps of: 1, deducing a control equation, including deducing an energy conservation equation and deducing a mass conservation equation; 2, an auxiliary equation is established; 3, initial conditions describe physical field distribution in the whole domain at the beginning of calculation, and in practical application, the initial conditions are generally determined based on field observation data or theoretical analysis; 4, describing physical field constraints on the boundary of the computational domain according to boundary conditions, wherein the boundary conditions generally comprise a Dirichlet boundary condition, a Neumann boundary condition and a mixed boundary condition; and step 5, a physical information neural network method. According to the method, efficient meshless calculation is achieved, powerful support is provided for model parameter inversion and cold region engineering real-time prediction, and the practical value and application potential of the method are remarkably improved.

The invention discloses a nested drainage basin flood simulation method considering bidirectional coupling, and relates to the technical field of hydrological and hydrodynamic model coupling and nested drainage basin flood simulation, and the method comprises the steps: coupling hydrological and hydrodynamic modules to construct a small-scale flood model based on spatial structure characteristics and a water volume secondary infiltration participation soil water mechanism of a spill flooding area; based on the space, the time and the coupling boundary, nesting the small-scale flood model and a preset large-scale flood model to obtain a nested drainage basin flood simulation model; and utilizing the nested basin flood simulation model to simulate hydrology and hydrodynamic force of the basin to be detected to obtain a flood submerging area evaluation result. According to the constructed small-scale flood model, a plurality of hydrological and hydrodynamic modules are integrated, water overflowing to a flood area is supported to infiltrate again and participate in the soil water process, hydrological-hydrodynamic bidirectional coupling between a river channel and the flood area is achieved, and mechanism support is provided for improving local simulation precision in nested simulation.

The utility model relates to the technical field of soil monitoring, and provides a soil water content monitoring and processing device which comprises a bottom plate and two circular rings, the top of the bottom plate is fixedly connected with a supporting rod, and the two circular rings are fixedly connected to the outer surface of the supporting rod. According to the device, the protective net can be installed by rotating the screw rod with hands and limiting the arc-shaped block, the protective net has certain elasticity, when the wild boars and other animals run around in crop land, the wild boars and other animals are blocked and buffered through the protective net, when the wild boars and other animals touch the protective net, the first pull rope and the first bell shake, and therefore the wild boars and other animals can be prevented from falling off. The bell rings to drive animals such as wild boars, so that the situation that the animals such as the wild boars directly touch the monitoring and processing device, damage to the monitoring and processing device and bite damage of a part of exposed wires can be avoided, and the situation that the animals such as the wild boars are injured due to collision can also be avoided.

The invention discloses an assembly type ecological green wall device which comprises a base plate, a plurality of supporting plates are arranged on the front side of the base plate, a plurality of planting units are arranged on the supporting plates, each planting unit comprises a supporting seat clamped on the supporting plate, the bottom end of each supporting seat is connected with an outer support, and a desalting assembly is jointly arranged on the inner sides of the outer supports and the supporting seats. A cleaning assembly is arranged at the top end of the bracket; a desalting assembly arranged in the device can synchronously discharge redundant salt in soil where green plants are located when the device irrigates the green plants planted in the green wall, accumulation of the salt in the soil is reduced while water is supplemented to the plants, when the soil in the device is desalted, water stored in an elastic bag is pumped out through a pump, and the water in the elastic bag is pumped out through a water pump; water is pumped into the transverse pipe through the water conveying pipe, the water in the water conveying pipe enters the transverse pipe and then is guided into the outer support communicated with the transverse pipe through the transverse pipe, the water flows into soil accumulated in the inner support through the liquid inlet groove, and after the water flows into the soil, salt dilution and flushing can be conducted on the soil.

The invention belongs to the technical field of resource optimization scheduling, and provides a drainage basin water volume accurate scheduling method and system based on precipitation real-time monitoring, and the method comprises the following steps: collecting hydrological data, early-stage influence rainfall and soil water content of each hydropower station in a target drainage basin; the earlier-stage influence rainfall is corrected through the collected hydrological data, and the corrected earlier-stage influence rainfall is obtained; in combination with hydrological data and the corrected early-stage influence rainfall, carrying out runoff forecasting in a short-term period of the drainage basin and middle-and-long-term end-of-period water level forecasting in the drainage basin, and obtaining end-of-period water level information; determining a flood prevention early warning level and a drought resistance early warning level according to the end-of-period water level information; and a scheduling decision is made according to the flood prevention early warning level and the drought resistance early warning level. According to the scheduling method provided by the embodiment of the invention, accurate scheduling of the water volume of the drainage basin can be realized.

This invention discloses an intelligent decision-making system for precise water allocation in agricultural irrigation districts based on crop water requirement coefficients. The system comprises three main modules: hardware acquisition and execution, software algorithms and modeling, and digital twin simulation and decision-making. These modules operate in a closed-loop logic of acquisition, processing, simulation, decision-making, execution, and feedback. The hardware module employs a four-dimensional collaborative acquisition, dual-mode transmission, and edge computing scheme. The software module incorporates algorithms and adaptation rules such as dual-factor coupling and dynamic water requirement coefficient correction. The digital twin module completes instruction issuance and parameter correction through full-element modeling, LOD optimization, and multi-objective decision-making. This invention, through dual-path feedback, digital twin collaboration, and multi-algorithm coordination, combined with dynamic water requirement coefficient correction, terraced field spatial adaptation, and soil water-salt coupling modeling, accurately matches plot requirements, balancing water conservation, crop adaptation, and energy consumption, thereby reducing irrigation district management costs and adapting to complex irrigation district operations.

The utility model discloses a portable soil water stability large aggregate sampling device, which comprises an undisturbed sampler and a soil cutter, the undisturbed sampler comprises an outer box body, the outer box body is fixedly connected with a four-edge cutter point, a sample containing box is placed in the box body, the outer box body is provided with two soil cutter inlets, and the two soil cutter inlets are communicated with the soil cutter inlet. The two soil cutter inlets are oppositely arranged, and the sample containing box is detachably connected with a box cover; and the soil cutter is inserted into the soil cutter inlet. The device provided by the utility model has the advantages of accurate sampling, integrity protection, simplicity and convenience in operation and strong portability.

The invention discloses a sand dune zone moisture extraction and separation device which comprises a supporting assembly, an extraction and separation assembly and a press-in assembly. The supporting assembly comprises a base and supporting legs; the separating and extracting assembly comprises a collecting pipe arranged in the guide hole, a separating sleeve clamped in the collecting pipe and an extracting pump arranged at the top end of the collecting pipe; a filtering pressing plate is clamped at the top in the separation sleeve; a micro motor for providing power for the filtering pressing plate is arranged at the top end of the separation sleeve; the press-in assembly comprises a fixed disc arranged on the base, a movable pressing disc arranged outside the collecting pipe in a sleeving mode, a clamping block arranged in the movable pressing disc, a follow-up driving sleeve connected to the movable pressing disc in a clamped mode and a driving component arranged on the upper end face of the fixed disc and capable of being connected with the follow-up driving sleeve. The device is reasonable in structural design, the collecting pipe can be pressed into sandy soil through the pressing-in assembly, the labor intensity of extracting soil water and underground water in a sand dune zone through manual excavation and well drilling is reduced, manpower is saved, and the extraction efficiency of the soil water and the underground water is improved.

The invention discloses a waterproof construction method for a cave dwelling building roof. The waterproof construction method comprises the following steps that firstly, part of original covering soil is dug; 2, mixing the excavated original covering soil with a curing agent, an additive and water to obtain flow-state solidified soil; and thirdly, a first layer of flow state solidified soil is poured on the compacted covering soil, then an adhesion agent is brushed, geogrids are laid, and then a second layer of flow state solidified soil is poured. According to the method, part of original covering soil of the cave dwelling building roof is excavated and prepared into the flow-state solidified soil, finally the flow-state solidified soil is poured back to the cave dwelling building roof, site spoil is utilized, resource utilization of building waste is achieved, and the method is economical and environmentally friendly; meanwhile, narrow gaps, pores and cracks which are difficult to treat by a traditional material are filled by utilizing the fluidity and the self-compaction characteristic of the fluid-state solidified soil; and furthermore, a solidified body formed after hardening has excellent anti-permeability performance, so that permeation of kiln crown covering soil water is effectively blocked, the stubborn disease of kiln crown covering soil water seepage is radically treated, and the material cost is reduced by more than 30% compared with that of a traditional method.

A water interception trench structure and construction method suitable for waterproofing the exterior of potash mine shafts are disclosed. The structure includes a shaft and a shaft wall, and further includes an embedded water storage bag, a water supply pipe, a water storage box, a water outlet pipe, a wall base, and an observation cylinder. The embedded water storage bag is located on the side of the shaft wall and below the soil water level to collect water flowing downwards from the soil layer through the outer wall of the shaft. The water storage box is located inside the wall base. The bottom of the embedded water storage bag has a water outlet hole. One end of the water supply pipe is connected to the water outlet hole and the other end is connected to the water storage box. One end of the water outlet pipe is connected to the water storage box and the other end is connected to the observation cylinder. The observation cylinder is installed on the side of the shaft wall near the shaft. The embedded water storage bag and the shaft wall are integrally cast with concrete, the water storage box and the wall base are integrally cast with concrete, and the wall base and the shaft are integrally cast with concrete. This invention has the advantages of simple construction, accurate monitoring, reusability, and cost savings, and has wide applicability and promotional value in the field of waterproofing potash mine shafts.

The invention discloses a method and system for constructing a comprehensive evaluation index of a soil water source conservation function, and relates to the technical field of soil water source conservation, and the method comprises the following steps: measuring a soil water retention performance index and a soil infiltration performance index; based on the measured indexes, determining the weight of each index by adopting a factor analysis method, and carrying out membership standardization processing on each index; and weighting the weight of each index and the standardized membership degree to obtain the comprehensive evaluation index of the soil water conservation function. According to the method, the soil water source conservation function can be quantitatively evaluated on the sample plot scale only through one-time or few-time soil index determination, dependence on a long-term hydrological sequence is avoided, and the data acquisition cost is remarkably reduced.

The invention relates to the technical field of modern agricultural ecological engineering, in particular to an orchard grass growing method based on an independent water and fertilizer supply system, and adopts the technical scheme that independent supply stations are arranged among fruit tree rows, and specific creeping fructus viticis plants are planted by adopting a soil separation water culture or matrix culture mode; constructing a living earth surface coverage network which is completely decoupled from a fruit tree soil water and fertilizer system; according to the method, water and fertilizer competition between covering plants and fruit trees is thoroughly eliminated, and zero-competition grass growing is achieved; a systemic agent is added into a supply station, and selected plants have the food calling characteristic on specific pests, so that a covering layer has the poison pest prevention and control function, and a'covering-prevention and control 'integrated ecological barrier is formed; water and fertilizer independent supply and functional design of the grass growing system are achieved, and the orchard ecological innovation technology is high in universality and easy to manage.

The application discloses a nested basin flood simulation method considering bidirectional coupling, relates to the technical field of hydrology, hydrodynamic model coupling and nested basin flood simulation, and comprises the following steps: based on the spatial structure characteristics and the water quantity secondary infiltration of the overflow flood area participating in the soil water mechanism, coupling hydrology and hydrodynamic modules, and constructing a small-scale flood model; based on space, time and coupled boundaries, nesting the small-scale flood model and a preset large-scale flood model to obtain a nested basin flood simulation model; and using the nested basin flood simulation model to simulate the hydrology and hydrodynamics of a to-be-measured basin to obtain a flood inundation area evaluation result. The small-scale flood model constructed by the application integrates multiple hydrology and hydrodynamic modules, supports the secondary infiltration of water overflowing to a flood area and participating in the soil water process, realizes the bidirectional coupling of hydrology and hydrodynamics between a river channel and a flood area, and provides mechanism support for improving the local simulation precision in the nested simulation.

The invention discloses a method for quantitatively evaluating the dynamic hydrological effect of vegetation, and belongs to the technical field of climate change evaluation. Aiming at the defect that vegetation and hydrological effects cannot be independently and quantitatively separated due to the fact that underlying surface parameters confuse vegetation and non-vegetation factors in an existing Budyko hydrothermal balance attribution model, meteorological, hydrological, vegetation and environmental data are collected and processed; inverting underlying surface parameters based on a Budyko framework; calculating elastic coefficients of runoff to rainfall, potential evapotranspiration and parameters; constructing a linear model taking the drought index and the soil water-holding capacity as variables to obtain vegetation sensitivity parameters; finally, the runoff component caused by vegetation change is quantitatively separated in combination with the elastic coefficient and the vegetation sensitivity parameter. According to the method, the influence of vegetation dynamics on the hydrological effect is independently and accurately quantified, and the transparency of runoff attribution and the application value in ecological hydrological management are improved.

The invention relates to the technical field of irrigation control, in particular to an automatic wheat irrigation control system and method based on the Internet of Things, and the method comprises the steps: obtaining wheat canopy parameters of a plurality of preset collection points in a target area, the water content distribution conditions of soil at different depths, the growth conditions of wheat roots, and environment parameters in a future preset time period; determining an irrigation trend characterization value based on the wheat canopy parameters of the first preset acquisition points and the environmental parameters in the future preset time period; and determining an irrigation demand mode of the target area based on the irrigation trend characterization value, the irrigation demand mode including a waiting irrigation mode, a weak demand irrigation mode and a strong demand irrigation mode. According to the invention, the irrigation mode can be dynamically adjusted according to wheat growth requirements, and the accuracy of wheat irrigation process control is improved.

The invention discloses a cigar coating cultivation method suitable for drought-prone soil. According to the method, cigar coating cultivation is achieved through field returning, soil preparation and ridging, transplanting, field management, ridging and film uncovering, ridge repairing, pest control and management, irrigation and harvesting. According to the method, the yield and quality of cigar coatings of cigars are improved through multiple measures such as tobacco seedling optimization, soil water-retaining property regulation and control and overground drip irrigation pipe laying, and drought-resistant seedling optimization, well cellar type hole planting, film mulching and soil moisture conservation in the seedling stage and regular irrigation in the balling stage are carried out. And by measures of laying drip irrigation devices in the vigorous growth period and the mature period and the like, limitation of drought to cigar coats is reduced to the maximum extent under the conditions of optimal use and water distribution. The cigar tobacco planting method aims at cigar tobacco planting in the environment of drought climate and low soil water-retaining property, and the problems of low yield and poor quality of cigar tobacco caused by drought are effectively solved.

The invention discloses a high-yield cultivation method for northern greenhouse syzygium samarangense, which comprises the following steps: (1) pre-flowering shoot strengthening fertilizer: in the early stage of bud germination of syzygium samarangense, digging a shallow ditch with the depth of 10-15cm in the range of a crown water drip and applying shoot strengthening and flower promoting fertilizer once; (2) accurate nutrition supply in a young fruit period: when young fruits are 2-3mm in size, carrying out first root topdressing; when young fruits are 5-7 mm in size, secondary root topdressing is carried out; (3) regulating and controlling water and nitrogen in a fruit expanding period: when the diameter of the fruit is about 2 / 3 of the size of a mature fruit, stopping supplying the nitrogen fertilizer in all forms; the water content of the soil is controlled to be 50%-60% of the field moisture capacity until one week before harvesting. According to the method, three key links of tip strengthening before flowering, accurate nutrition supply of young fruits and later-stage water and nitrogen regulation and control are organically combined, a complete nutrition management chain is formed, the problem of space-time mismatching of nutrition supply is solved, and collaborative improvement of improving sweetness of the wax apple fruits and reducing cavities is achieved.

This application relates to the field of agricultural irrigation and soil water and salt management technology, and discloses a method for coordinated regulation of water and salt in the root zone of jujube trees based on continuous vertical pipe irrigation. The method includes: deploying vertical pipes around the main root zone of the jujube tree to continuously supply slightly saline water; obtaining meteorological theoretical water consumption demand and headstock observation flow rate, identifying effective infiltration flow rate and calculating the total external salt mass; constructing surface state quantities, transient transitional inventory in the main root protection zone, and deep state quantities, disassembling the total external salt mass and updating the above state quantities; calculating the freshwater maintenance capacity factor and isolation integrity index, obtaining surface overload contribution items and deep overload contribution items; when the isolation state of the main root zone is determined to be ineffective, comparing the surface overload contribution item with the deep overload contribution item, and outputting a matching hydraulic regulation command. This invention overcomes the defect of soil sensors being prone to corrosion and failure, improves the accuracy of salt distribution measurement, achieves targeted hydraulic remediation, and avoids secondary hydrological hazards caused by flood irrigation.

The invention discloses an in-situ monitoring device for soil-water pressure behind a well wall and an installation method, and relates to the technical field of soil-water pressure monitoring. In-situ real-time monitoring of the soil pressure and the water pressure behind the well wall can be achieved, and then the safety of the well wall structure is ensured. According to the technical scheme, a hole is formed in the inner wall of a shaft through a common drill bit, and an orifice pipe is embedded; a common drill bit is replaced by a drilling device, the drilling device is sequentially connected with a core monitoring device and a special drill rod, the drilling device comprises a three-petal openable drill bit, and the core monitoring device comprises an earth pressure box, a pore water pressure gauge front bin and a pore water pressure gauge rear bin. The inner wall and the outer wall of the shaft are drilled and then reversed; pulling out the limiting pin to take out the special drill rod; and long-term monitoring is carried out. According to the invention, in-situ actual measurement of stratum soil pressure and water pressure at different depth positions can be realized, actual measurement data can be provided for a deep underground engineering ground pressure theory, and long-term safe operation and maintenance of a well wall can be assisted.

The invention relates to the technical field of ecological environment monitoring, and discloses a desert grassland hydrological threshold change identification and health grading system, which comprises a distributed sensing module for collecting water and soil environment data; the space function division module divides function subareas based on soil moisture and identifies a center node; the time phase state analysis module calculates a phase drift standard deviation of water planting response; a topology dynamic reconstruction module adjusts a threshold reconstruction network according to the phase drift and calculates a structure entropy; the self-adaptive scanning control module monitors the index change to judge the resonance condition, and adaptively adjusts the scanning strategy according to the electric quantity; the health grading module combines the phase drift and the structure entropy to calculate an early warning index so as to determine the health grade. According to the method, the critical precursor is captured through a spatial-temporal characteristic mutual feedback mechanism, and early-stage accurate identification of the hydrological threshold transformation process and quantitative grading of the desert grassland health state are realized.

Disclosed are a monitoring method and a monitoring device for irrigation water use (IWU), a computer device and a non-transitory computer readable medium. The method includes: determining a linear correlation between a first evapotranspiration (ET), a first soil water storage, and a monthly reference ET of a target region according to a first data set in response to a monitoring instruction from a user; determining multiple second soil water storages of the target region based on a second data set, and the linear correlation of the first ET, the first soil water storage, and the monthly reference ET of the target region; determining the IWU of the target region according to the first ET, the second ET, the first soil water storage, the second soil water storage of the target region, and the first preset correlation.

A plant growth container for ecological restoration includes a container body, which is a hollow cylinder with an open top. The upper part of the container body has a rainwater / dew collection rim. A ring-shaped water storage box is located along the circumference of the inner wall of the middle section of the container body. A condensation bottom plate is located above the water storage box. The condensation bottom plate is a circular plate with a higher center and lower edges, leaving a space between the condensation bottom plate and the inner wall of the container body. Multiple flow guide holes are provided on the side wall of the container body around the condensation bottom plate. Rainwater / dew collection channels are also provided along the circumference of the side wall of the container body, with the bottom of the channels flush with the flow guide holes. The condensation bottom plate has multiple water-absorbing strip holes and also includes multiple water-absorbing strips. One end of each water-absorbing strip is located inside the water storage box, and the other end extends through the water-absorbing strip holes into the inner cavity of the container body above the condensation bottom plate. This invention achieves efficient collection of natural rainfall and soil water vapor condensate, reducing dependence on external water sources and enhancing plant survival rates.