84 results about "Water salt" patented technology

The invention discloses a soil water and salt dynamic monitoring and quality evaluation method based on multispectral remote sensing, and relates to the field of geological monitoring, and the method comprises the steps: carrying out the scattering deviation correction and roughness correction of an observation spectrum through a satellite remote sensing image, an unmanned aerial vehicle multispectral image, a ground sample and meteorological driving data; the soil intrinsic reflectivity, the vegetation coverage component and the salt crusting component are obtained; a water-salt inversion model is established by combining thermal infrared and red edge wave band information, and multi-temporal soil volumetric moisture content and surface salinity index are inverted; by introducing meteorological conditions and vegetation dynamic characteristics, a water-salt coupling partial differential equation and a graph space-time constraint model are constructed, and continuous space-time distribution of soil water content and salinity is obtained; extracting salinity, moisture, vegetation response and soil health indexes, establishing a soil quality comprehensive evaluation model, and outputting high-risk plaques and a treatment priority sequence. The method realizes dynamic monitoring and quality grading evaluation of soil water and salt, and is suitable for saline-alkali soil treatment and ecological restoration.

The invention provides a rapid evaluation method and system for the soil fertility level, and relates to the technical field of soil fertility detection.The rapid evaluation method comprises the steps that an original absorbance spectral data curve is obtained by scanning a soil sample, the moisture peak absorbance, the actual peak position wavelength and the moisture synthetic frequency characteristic peak width are extracted, and a spectral data basis is provided; a water-salt optical path coupling factor is calculated, water-salt correction operation is carried out in combination with a volume correction coefficient, a virtual dry soil spectrum data curve is obtained, interference of salt on a water optical path is quantified, and a water background and salt masking are eliminated; constructing a characteristic virtual baseline of the organic matter and the total nitrogen, calculating an integral area to obtain characteristic intensity of the organic matter and the total nitrogen, and providing a physical input variable for quantitative inversion; introducing a water-salt optical path coupling factor to invert the organic matter content and the total nitrogen content, and correcting signal depression caused by salt stress; the effective fertility index is calculated and graded by combining the organic matter content and the total nitrogen content of the soil, and the actual fertilizer supply capacity of the soil is comprehensively evaluated.

The invention provides a reservoir pressure salinity scheduling method based on a physical information neural network (PINN). The reservoir pressure salinity scheduling method comprises the following steps: Step 1, salinity prediction based on a physical information neural network (PINN) model; the method comprises the following steps: in a PINN model framework, embedding a physical law of salinity conservation into a multi-layer perceptron (MLP) artificial neural network for training so as to carry out salinity prediction; step 2, establishing an estuary water-salt model based on a three-dimensional ocean numerical FVCOM model; step 3, carrying out upstream reservoir salty water pressing and light water supplementing emergency scheduling based on salinity forecast; comprising the following steps: Step3.1, establishing a multi-objective function; and Step3.2, solving a scheduling model. According to the method, the salinity momentum conservation constraint can be considered, the salinity prediction accuracy under the influence of different upstream flows and downstream tidal ranges can be improved, and the emergency scheduling of the reservoir for the salt tide invasion of the estuary drinking water source can be carried out in combination with the scheduling model, so that the water supply safety is ensured.

The invention relates to the technical field of soil drainage and salt improvement, in particular to a coastal saline-alkali soil drainage and salt improvement intelligent regulation and control method and system based on artificial intelligence, and the method specifically comprises the following steps: dividing treatment units, arranging sensing equipment, and collecting multi-source heterogeneous data to form a data set; after data cleaning and time-space synchronization are conducted, standardized feature vectors are obtained through sectional physical perception standardization processing; constructing a graph neural network micro-area irrigation volume demand prediction model, and predicting recommended irrigation volume and soil salinity variation; calculating a loss function of the model and performing iterative training on the model; and performing periodic decision regulation and control circulation on the trained model, converting the output of the multi-source heterogeneous data collected at each decision moment through the model into an instruction, issuing the instruction, and synchronously performing drainage regulation and control. According to the invention, water-salt environment optimization regulation and control can be realized, and an intelligent treatment closed loop is formed.

The invention discloses an intelligent irrigation regulation and control system and method for dynamic balance of water and salt in saline-alkali soil, and belongs to the technical field of intelligent agriculture. Comprising the following steps: collecting dynamic monitoring data influencing the water-salt dynamic state and storing the dynamic monitoring data in a basic database; calculating the crop evapotranspiration water demand based on the data of the basic database; in combination with the calculated crop evapotranspiration water demand and data of the basic database, salt profile estimation is achieved, a dynamic target salt threshold value is set, the self-adaptive leaching water amount is calculated, the salt return risk is evaluated, and an evaluation report at the end of the growth season is generated; based on all calculation and evaluation results, key strategy control parameters for guiding irrigation are generated and optimized by adopting a reinforcement learning algorithm; generating a self-adaptive irrigation strategy and auxiliary measure suggestions by combining all the obtained results and fusing weather forecast data; the irrigation strategy is converted into an irrigation and drainage executable instruction, and meanwhile, the execution state of irrigation and drainage is monitored to be used for achieving double-path feedback.

The invention discloses a long-distance water-salt dynamic regulation and control method and device, a medium and a product, and relates to the technical field of ecological management, and the method comprises the steps: periodically obtaining monitoring data through a real-time monitoring network; determining the opening degree of a flow valve based on a partial pressure technology according to the water pressure and flow data of each node of the water delivery pipe network, and dynamically adjusting the water pressure and flow of each shunt branch in the water delivery pipe network according to the opening degree of the flow valve; according to the water content of the artificial soil layer, a water supplementing strategy is determined based on a vegetation water demand model; according to the salinity value of the artificial soil layer, on the basis of a salinity accumulation risk model, salt control closed-loop control based on a high salinity water active suction band-off mechanism is carried out; according to the invention, dynamic, accurate and closed-loop management of moisture and salinity can be realized.

The invention relates to the field of specific calculation models, and discloses a natural regulation type salinized soil desalination simulation and multi-objective optimization configuration method, which comprises the following steps of: 1, data acquisition and earlier stage processing; 2, constructing a water and salt migration model; step 3, simulation analysis and scheme optimization; 4, carrying out substitution model training and multi-objective optimization; the final scheme is directly used for guiding engineering implementation, and specifically comprises the steps of determining the terrain adjustment amplitude, the position and depth of a drainage ditch, the micro-topographic relief scale, the earth filling and digging volume and shallow guide and drainage path configuration. The method has the beneficial effects that the natural drainage capacity of regional underground water can be remarkably improved, the effect that evaporation drives salt to move upwards is weakened, the rainfall infiltration capacity is improved, and the natural leaching effect is enhanced. The method is suitable for areas such as mud flats, salt pans and natural reserves where artificial engineering measures are not suitable to be taken, and has the advantages of low cost, high stability, ecological friendliness and the like.

The application of "a unit type tidal wetland restoration method based on a target" belongs to the technical field of wetland ecosystem restoration methods. The unit type tidal wetland restoration method based on a target comprises the following steps: (1) determining a target; (2) constructing an ecological unit on the tidal wetland to be restored through microtopographic modification; (3) applying biochar materials and salt-resistant ecological materials in the ecological unit; and (4) configuring waterfront plants in the ecological unit. The restoration method utilizes natural tidal fluctuation to adjust the water and salt conditions of the ecological unit (salt reduction of more than 80%) and to maintain the target water level (0-2 m) as needed, optimizes the soil microbial community structure (soil bacterial richness is increased by more than 200%), improves the plant germination rate and survival rate in the process of tidal restoration (the germination rate is more than 90%, and the survival rate is increased to more than 62%), and enriches the plant configuration varieties in the riparian zone (≥12).

Methods of separating water, salt, CO2, and crude oil from wastewater, the methods comprising: providing gas / oil separation system that produces a waste saline water stream and a CO2 stream; providing an electrochemical cell having an anode, a cathode, and three electrodialytic compartments; feeding a fresh water stream to the anode to produce H+ and O2; feeding the waste CO2 stream and O2 to the cathode to produce bicarbonate (HCO3—) and hydroxide ions (OH−); feeding the waste saline water stream to a center electrodialytic compartment; wherein the sodium Na+ from the waste saline water stream reacts with the bicarbonate to form NaHCO3 and the chloride (Cl−) from the waste saline water stream reacts with the H+ to produce hydrochloric acid; and producing salt and desalinated water.

The invention relates to the technical field of water-salt distribution, and discloses a simulation system and method for water-salt evolution of an island aquifer under the influence of underground structures, and the method comprises the steps: prefabricating standard dyeing seawater by adopting NaCl and carmine; diluting standard dyeing seawater in proportion to prepare saturated sand column standard samples with different salinity gradients, and collecting profile images of the saturated sand column standard samples; extracting the average gray value of the section image of each saturated sand column standard sample and the corresponding global temperature and salinity; fitting the average gray value, the global temperature and the salinity corresponding to the saturated sand column standard sample, and establishing a global temperature coupled salinity inversion model; acquiring an experiment profile image and an experiment global temperature of the sea island aquifer water-salt evolution experiment under the influence of the underground structure; and generating a two-dimensional salinity distribution data field according to the salinity inversion model, the experimental profile image and the experimental global temperature. The full-profile image of the aquifer to be measured is collected in real time, the relation between the light intensity and the salinity is established, interpolation processing is not needed, and the simulation result is more accurate.

The invention relates to the technical field of environment monitoring, in particular to a water-salt ratio dynamic monitoring method and system for farmland, and the method comprises the following steps: collecting multi-point tension and conductivity data, carrying out the ratio judgment, delaying the collection if a threshold value is exceeded, synchronously updating a data set, converting salt, calculating the change of the water-salt ratio, and fitting a trend to obtain change information. Evaluating water stress in combination with crop parameters, judging a water demand period, superposing predicted rainfall to generate an interference result, and calculating a water-salt change acceleration recognition intervention point. According to the method, through the water stress index constructed by fusing the transpiration potential base value of the crop and the water content of the root layer, accurate identification of the water demand period of the crop is realized, comparison with the predicted rainfall time interval is carried out, and trend key points influenced by rainwater disturbance are screened; a continuous acceleration change section is identified through a water-salt ratio acceleration sequence formed by a change rate difference value, and an intervention demand point is marked in time under the condition that a continuous trend is enhanced.

The application discloses a power plant water-energy-salt cascade reuse system for flue gas drying integrated coupling, to solve the problems of low resource utilization efficiency and high energy consumption in the zero discharge technology of power plant wastewater. Through the technologies of circulating cooling water cascade reuse, desulfurization wastewater efficient concentration treatment, desulfurization concentrated water flue gas drying treatment and intelligent monitoring and control unit, the efficient reuse of water, salt and energy in the wastewater is realized. The wastewater is treated through multiple membrane processes such as ultrafiltration, nanofiltration and reverse osmosis, so that the cascade water quality reuse for different purposes is realized. The calcium and magnesium ions are extracted through chemical precipitation and used as industrial raw materials, effectively alleviating the membrane pollution problem of subsequent processes. The high-salinity wastewater is dried by flue gas waste heat to produce industrial salt, realizing the recovery of salt resources. The system adopts an intelligent monitoring and control system, realizes real-time monitoring and automatic adjustment, optimizes the operation efficiency of each treatment unit and reduces energy consumption. The application realizes near-zero discharge of wastewater and efficient reuse of resources, and has significant economic and environmental benefits.

The invention discloses a saline-alkali cultivated land improvement method and system based on dynamic irrigation and drainage regulation, and relates to the technical field of irrigation and drainage regulation, and the method comprises the steps: obtaining soil salinity data, soil moisture data and crop growth data of a cultivation region, extracting salinity migration parameters and water demand parameters, and constructing a water-salt coupling model; performing gridding zoning on the region by combining the salinity concentration distribution and the crop growth period, and calculating the irrigation water amount and the irrigation time of each regulation and control unit; in the irrigation process, root zone salinity and underground water level data are collected, the salinity return moment is recognized, drainage delay is calculated, and the initial drainage moment is obtained; the leaching depth is determined according to vertical distribution of salt in the root zone, evaluation indexes are established in combination with the growth period, drainage time sequences of adjacent regulation and control units are coordinated, and coordinated drainage moments are obtained; and generating an irrigation and drainage regulation and control instruction according to the irrigation and drainage parameters, and outputting and executing. According to the method, dynamic regulation and control of the irrigation and drainage process are achieved, salt drainage efficiency is improved, and salt return is inhibited.

The invention relates to the technical field of analogue simulation, in particular to a root zone salt directional migration simulation method which comprises the following steps: acquiring profile parameters and correcting a feature trajectory, carrying out water-salt simulation to extract an attenuation trend, identifying an outward migration path and outputting a simulated layer. According to the method, a root zone profile environmental parameter map is constructed by a sensor time sequence, and anomaly elimination and substitution are performed on continuous data, so that more stable feature input is formed, a reliable data basis is provided for subsequent simulation, and a concentration decreasing region in a non-root zone direction is extracted in a simulation stage; the directivity of water and salt changes in the space is clearly expressed, a consistent migration route can be automatically screened out from a dynamic change relation by identifying path points continuously keeping an outward migration trend in a time sequence, and a structured salt migration expression mode can be formed by binding a path number and an original layer and uniformly outputting the path number and the original layer. And the relevance, the integrity and the searchability of the outward moving path of the root region are improved.

The invention discloses a WSRS framework-based ecological safety assessment method for a drainage basin in an arid region, relates to the technical field of ecological assessment, and solves the technical problems that the prior art is not adaptive to a coupling process of water, salt, evapotranspiration and underground water and lacks key factors, and an assessment method lacks weight uncertainty description and robustness analysis. The method comprises the steps of S1, acquiring multi-source data of a target drainage basin, and performing data preprocessing; s2, constructing a WSRS evaluation index system, and carrying out standardization processing on indexes; s3, based on the standardized indexes, determining the comprehensive weight of each index by adopting a subjective and objective combination weighting method; s4, performing comprehensive evaluation based on the comprehensive weight, and quantifying uncertainty of an evaluation result by adopting a cloud model to obtain an ecological safety index; s5, constructing a composite stress model and correcting an ecological safety index; and S6, carrying out risk grade division and result visualization. The method has the advantages that the arid region process adaptability is high, the evaluation result is stable and explainable, and the like.

This invention provides a method, apparatus, equipment, and medium for quantitative assessment of salinity migration in composite landscapes. The method includes: acquiring landscape unit distribution information and groundwater monitoring well distribution information within each landscape unit of the composite landscape within a target time period; analyzing soil salinity storage changes, salinity centroid location, and lateral water-salt flux of groundwater based on the landscape unit distribution information and groundwater monitoring well distribution information within each landscape unit to determine multidimensional characteristic parameters of water-salt migration in the composite landscape; determining the lateral flux and spatiotemporal distribution characteristics of salinity in the composite landscape based on the multidimensional characteristic parameters of water-salt migration in the composite landscape to obtain salinity migration assessment results; and implementing zoned management and optimized water resource management based on the salinity migration assessment results. This invention realizes the transformation from single static monitoring to dynamic multidimensional characteristic analysis, providing refined quantitative indicators for accurately assessing the laws of water-salt transport.

The application provides a soil fertility level rapid evaluation method and system, relates to the soil fertility detection technical field, and provides the spectrum data basis through scanning soil samples to obtain the original absorbance spectrum data curve and extracts the water peak value absorbance, the actual peak wavelength and the water combined frequency characteristic peak width; calculates the water salt optical path coupling factor and carries out water salt correction operation to obtain the virtual dry soil spectrum data curve in combination with the volume correction coefficient, quantifies the interference of the salt on the water optical path and eliminates the water background and the salt masking; the characteristic virtual baseline of organic matter and total nitrogen is constructed, and the integral area is calculated to obtain the characteristic intensity of organic matter and total nitrogen, so that physical input variables are provided for quantitative inversion; the water salt optical path coupling factor is introduced to invert the organic matter content and the total nitrogen content, the signal suppression caused by the salt stress is corrected; the effective fertility index is calculated in combination with the organic matter content and the soil total nitrogen content, and is classified, so that the comprehensive evaluation of the actual fertilization capacity of the soil is realized.

The present application relates to the field of agricultural data analysis, and more particularly to a farmland water-salt evolution law mining system based on time series trajectory clustering, which comprises the following steps: collecting and preprocessing original farmland water and salt data to obtain a two-dimensional time series trajectory set; analyzing the water-salt lag accumulation effect of the two-dimensional time series trajectory set to obtain a first optimization factor; analyzing the local water-salt trajectory fluctuation degree of the two-dimensional time series trajectory set to obtain a second optimization factor; jointly modifying the original single-step distance based on the first optimization factor and the second optimization factor to obtain a final time series similarity distance; and clustering and dividing the final time series similarity distance to extract the farmland water-salt evolution law, thereby solving the problem that the existing dynamic time warping algorithm cannot represent the asynchronous lag difference of farmland water and salt, resulting in the wrong clustering of different water-salt evolution mechanism plots.

The utility model discloses a material test temperature zoning control device under a water-salt-temperature coupling environment effect, which comprises a main test box temperature zoning control device, a protective shell is arranged on one side of the main test box temperature zoning control device, a base plate is arranged in the protective shell through a support, and the base plate is provided with a water inlet and a water outlet. And an inner test box is arranged above the base plate. The temperature zoning control device can be used for performing temperature zoning control on a sample in the inner test box and simulating the working conditions of a buried engineering structure material in an underground water salt environment and an overground low-temperature environment; the temperature gradient and temperature zone control of an engineering structure material in a frozen area above a soil body freezing front surface and an unfrozen area below the freezing front surface is realized; by adjusting and controlling the temperature gradient of a low-temperature freezing area at the top of a sample in the inner test box and the temperature gradient of an unfrozen area at the bottom of the inner test box, the movement of a freezing front surface position and the control of freezing depth are realized, so that the test can accurately and truly simulate water-salt temperature environment working conditions of areas with different freezing depths.

This invention discloses a sensor-based data analysis and processing method for saline-alkali land improvement, relating to the field of agricultural management technology. The method includes: acquiring sensor data and improvement management records of the target saline-alkali land, and correlating them to form an operational dataset to be analyzed, containing sensor change information and management operation information; constructing counterfactual baseline response characteristics when management operation events have not occurred based on counterfactual candidate control data, and mapping these characteristics to actual response characteristics to generate net contribution analysis data; determining the net contribution data of management operation events to the improvement status of saline-alkali land based on the net contribution analysis data, and verifying the consistency of the net contribution data according to the expected response characteristics, thereby generating saline-alkali land improvement analysis and processing data. This invention, by constructing baseline response characteristics when management operation events have not occurred, forms a soil index reference for similar operations that have not been implemented, reducing the interference of water and salt disturbance and plot differences on the judgment of improvement effectiveness.

The application discloses a kind of live water salt agglomerate elimination equipment, it is related to live water salt production equipment technical field, the equipment is aimed at solving artificial salt pouring material elimination salt agglomerate, there is technical problem of great labor intensity, low capacity, low degree of automation production, the equipment includes first conveying frame, first conveying shaft rotatable being installed in first conveying frame inside, first conveying belt being installed in first conveying shaft outside, first dust cover being fixedly connected on the upper end of first conveying frame;Wherein, first conveying frame right side is sequentially provided with weighing bin, vibration fluidized bed bottom shell and second conveying frame, the ground of second conveying frame rear side is provided with rotary dehumidification fan, the equipment uses the cooperation of fluidized bed plate and vibration motor, flow state is uniform, the cooling effect of live water salt is better, effectively prevent salt material and external air cross infection, salt material particle is little damaged, uses the cooperation of air-cooled water cooling unit and rotary dehumidification fan, and salt is cooled and cooled down.

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 belongs to the technical field of mine water advanced treatment salt separation, and discloses a mine water advanced treatment salt separation device which comprises a salt separation device body, the salt separation device body comprises a tank body, a feeding port and an air outlet are formed in the upper portion of the tank body, and a condensation mechanism is arranged at the left end of the tank body; the condensation mechanism comprises a side plate installed at the left end of the tank body through bolts. Through the collaborative design of the tank body, the feeding hole, the gas outlet, the condensation mechanism and the discharging hole, a basic function closed loop of mine water salt separation, namely stable feeding at the feeding hole, heating evaporation of the tank body, condensation and water recovery of the condensation mechanism and salt discharge at the discharging hole, is realized, salt separation is completed, water is recovered and evaporated through the water tank, water resource waste is reduced, and the energy consumption is reduced. And meanwhile, the condenser is stably supported by the side plates, so that the condensation process is reliable, salt separation interruption caused by component looseness is avoided, and the operation stability of the device is improved.

The invention discloses a method and system for rapid restoration and suitable planting of a severe saline-alkali soil habitat, and belongs to the technical field of saline-alkali soil habitat restoration and suitable planting. The method comprises the steps that soil layer targeted diagnosis is carried out through multi-source physical detection equipment and a water-salt sensor array, and clay layer space distribution characteristics are obtained; constructing a three-dimensional layered salt elimination system according to spatial distribution characteristics of the clay layer, and completing salt elimination to obtain a plough layer desalted plot; carrying out soil clay layer crushing operation on the plough layer desalted land parcel by adopting a vibration type ultra-deep scarification machine tool, synchronously injecting a humic acid phosphogypsum composite modifier and a decomposed organic fertilizer, and carrying out rotary tillage to obtain a soil body structured land parcel; salt-tolerant crops coated with arbuscular mycorrhizal fungi are sown in the soil body reconstructed land parcels, and water and fertilizer regulation and seedling stage bacterial liquid dilution root irrigation are implemented through intelligent drip irrigation. The method realizes rapid restoration of the saline-alkali soil, has ecological and economic benefits, and is suitable for treatment of severe saline-alkali soil such as coastal saline-alkali soil.

The utility model discloses a simulation device for water and salt migration in a soil body under freeze-thaw cycle, which relates to the technical field of water and salt migration simulation devices and comprises a visual acrylic test barrel, an upper temperature conducting disc, a lower temperature conducting disc, a water and salt supply device, a fluorescent agent, a blue light lamp, a data acquisition instrument, a plurality of hydrothermal salt sensors, a water level monitor and two low-temperature thermostatic baths. According to the design, the problem that the accuracy of a water and salt migration simulation test in a soil body is influenced because the original device cannot observe the soil column change in the freezing and thawing process of the salinized soil from a macroscopic angle is solved. According to the utility model, the vacuum layer is adopted to achieve a heat preservation effect, a fluorescent agent is added into the replenishment liquid, and an internal freezing frontal surface, ice crystals and salt crystals can be observed through the acrylic glass barrel. When water and salt migration in the soil body is simulated, data are more accurate, the reliability of a test result is improved, and the water and salt migration process in the soil column is more visually observed.

The utility model discloses detection equipment for removing water insoluble substances in a quaternary water-salt system. The device comprises a cyclone, the right side of the cyclone is communicated with a pipeline, one end, far away from the cyclone, of the pipeline is provided with a pump machine, the top of the pump machine is communicated with a multi-bag filter through a pipeline, the bottom of the front end of the multi-bag filter is communicated with a sedimentation tank through a pipeline, and the left side and the right side of the sedimentation tank are fixedly connected with filter boxes. Through the arrangement of the separating mechanism, the electric telescopic rod can work to push the sleeve rod to move, the sleeve rod moves to drive the transmission column to move along with the sleeve rod, the transmission column moves to force the movable rod to rotate with the rotating shaft as the center, and the movable rod rotates to keep horizontal and pulls the support and the sliding plate to move upwards. The sliding plate moves upwards to drive the connecting plate and the filter plate to move, the filter plate moves upwards to float upwards from the bottom of the sedimentation tank to pull solid particles, and therefore the solid-liquid separation effect is achieved.

The invention discloses an underground pipe salt elimination and rainwater collection recycling method and system for a coastal garden, and the method comprises the steps: determining underground pipe layout parameters through an underground pipe layout efficiency evaluation model, integrating multi-dimensional monitoring data through a multi-source moisture salt data fusion algorithm, formulating a rainwater collection regulation and control strategy through a rainwater storage regulation and control adaptation model, and carrying out the rainwater collection and control through a rainwater storage regulation and control adaptation model. The salt discharge, water discharge and irrigation parameters are dynamically adjusted by means of a garden water-salt collaborative management and control platform, the salt discharge frequency and the rainwater utilization intensity are optimized in combination with a water-salt state evaluation result, and closed-loop regulation and control are formed through data feedback. Wherein the key steps are further refined into a plurality of sub-steps, and coherent operation of data acquisition, parameter calculation, accurate regulation and control and effect optimization is realized. According to the method, the regulation and control accuracy and the resource utilization efficiency are improved, the method adapts to the complex water-salt environment of the coastal garden, and efficient and stable technical support is provided for ecological construction.

The present application relates to the technical field of water-salt and pollutant collaborative regulation optimization, and particularly relates to a water-salt and pollutant collaborative regulation optimization method. Spatial position information and attribute information corresponding to strip fields, drainage ditches, ecological sinks, strong drainage stations and external drainage river outlets in a target region are acquired; a target directed graph network model is constructed according to the spatial position information and attribute information corresponding to the strip fields, drainage ditches, ecological sinks, strong drainage stations and external drainage river outlets; and a water-salt and pollutant collaborative regulation optimization scheme corresponding to the target region is determined based on the target directed graph network model. The facility operation parameters (such as the split ratio) are optimized in a targeted manner, the conflict between the salt control and pollution reduction objectives is resolved, fine configuration is achieved, the treatment efficiency is improved, and the demand for comprehensive treatment of the water environment in the irrigation area is met.

The application relates to the technical field of saline-alkali soil improvement, in particular to a water and salt layering control irrigation device for rice-wheat intercropping in saline-alkali soil, which solves the problems of serious water resource waste caused by traditional flood irrigation, incomplete salt washing in the rice season, easy salt return in the wheat season, lack of vertical profile water and salt data support leading to lagging control, and the like; the device comprises a shallow soil layer, a deep soil layer, a ridge and a surface layer, a PLC controller is arranged on one side of the ridge, and a water collecting tank is arranged in the inside of the ridge; the device further comprises a layered double-control irrigation and drainage pipe network assembly, a multi-soil-layer in-situ water and salt sensing unit and a buried pipe salt drainage module. The device realizes directional surface layer leaching and salt removal in the rice season, deep layer precise water supply and salt return inhibition in the wheat season, and efficient salt drainage through the synergistic work of the double-control pipe network of surface layer leaching and deep layer water supply, the multi-soil-layer in-situ water and salt sensing unit and the buried pipe salt drainage module, the system intelligently controls according to the soil water and salt data, the water and salt contradiction is solved, the water resource utilization rate is improved, and high yield and stable yield of rice-wheat rotation are ensured.