Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

52 results about "Soil infiltration" patented technology

A substation flood intelligent monitoring method and system

The application discloses a kind of substation flood intelligent monitoring method and system, it is related to electric power system safety monitoring field.The method is by building the multi-dimensional influence factor library including the bottom elevation of discharge port and pipe network permeation loss, combined with rainfall forecast executes dynamic water balance deduction, deduce according to the dynamic correction soil infiltration capacity of early rainless days, and according to the effective pressure difference of water level and the bottom of discharge port calculates net drainage capacity;Based on the deduction result, water level height field is generated by combining three-dimensional digital model for waterlogging overflow distribution;According to water level height field and equipment elevation, determine the flooding risk, and generate dispatching instruction by taking water center as target and combining prohibited operation area to optimize equipment layout coordinates;Through man-machine interaction correction parameter and trigger GPU acceleration recalculation to realize model online evolution.The application realizes the physical mechanism simulation and space intelligent scheduling under the microscale of substation, changes passive alarm into active risk deduction.
Owner:SHANDONG ZHIHECHUANG INFORMATION TECH CO LTD

Ecological domestic sewage recycling device based on soil infiltration

The invention discloses a domestic sewage ecological recycling device based on soil infiltration, and relates to the technical field of sewage recycling, a recycling transfer box for transferring sewage is mounted in a small wetland box, and an upper lifting plate for controlling the height of an infiltration level control plate is mounted on the outer side of the small wetland box; the sewage treatment device has the advantages that sewage is purified through soil, microorganisms and the like in the small wetland box, so that the effluent quality reaches a relatively high standard, the infiltration layer control plate can be driven to move up and down by operating the lifting plate on the outer side of the small wetland box, the infiltration layer control plate can be driven to move up and down, and the water quality is improved. Sewage can be distributed to different soil layers according to needs, the fertile degree of soil is improved, after the percolation layer control plate is adjusted to the target height, the layer fixing plate can ensure that the percolation layer control plate is stabilized at the set height, the percolation layer control plate can be guided to the designated soil layer according to needs, and recycling of water resources is achieved.
Owner:ANHUI PROVINCIAL ACAD OF ECOLOGICAL & ENVIRONMENTAL SCI (ANHUI PROVINCIAL ECOLOGICAL ENVIRONMENT PLANNING INST ANHUI PROVINCIAL ECOLOGICAL ENVIRONMENTAL ENG CONSULTING & DESIGN INST)

Method and device for treating wastewater by combining a suspended filler floating bed with a soil infiltration system

The application provides a method and device for treating wastewater by combining a suspended filler floating bed and a soil infiltration system, and the method comprises the following steps: S1, breeding wastewater is treated by the suspended filler floating bed after passing through a hydrolysis tank, and effluent is treated in a sedimentation tank, and wastewater of the suspended filler floating bed is returned to the suspended filler floating bed for secondary treatment; S2, wastewater of the sedimentation tank is returned to the hydrolysis tank; and S3, effluent of the sedimentation tank is introduced into a soil underground infiltration system. The system provided by the application is beneficial to further strengthening the effects of denitrification, phosphorus removal and removal of suspended solids, and solves the problems of low dissolved oxygen content of influent and wastewater in the system, which is not conducive to the growth of nitrifying bacteria, and low effective volume utilization rate. In the use process, the filler does not need to be replaced, and mechanical aeration equipment does not need to be added, and the system has the advantages of low investment cost, no need to add chemical agents for treatment, obvious effect, not easy to breed mosquitoes, simple operation and management, and beautification of the environment, and has remarkable ecological and economic benefits for promoting deep purification of breeding wastewater.
Owner:BEIJING DABEINONG TECHNOLOGY GROUP CO LTD +1

Construction method and system for comprehensive evaluation index of soil water source conservation function

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.
Owner:RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER

Underforest soil moisture migration characteristic research system and method

The invention discloses an under-forest soil moisture migration characteristic research system and method, and relates to the technical field of forestry soil moisture migration research. Comprising an under-forest soil sampling unit, a cylinder temperature adjusting unit, an under-forest soil infiltration research experiment unit and an under-forest soil water retention research experiment unit, the under-forest soil sampling unit comprises a soil sampling drilling machine, a soil sampling barrel and a soil sampling barrel cutter; the cylinder body temperature adjusting unit is used for heating an undisturbed soil column in the soil sampling cylinder body; the under-forest soil infiltration research experiment unit is used for carrying out infiltration experiments on the undisturbed soil column in the soil sampling cylinder at different temperatures and under different earth surface conditions; and the under-forest soil water retention research experiment unit is used for carrying out field in-situ water retention observation experiments. According to the invention, the in-situ soil column is directly obtained by adopting the soil sampling cylinder, and an infiltration experiment can be directly carried out after the in-situ soil column is cut by the soil sampling cylinder, so that forestry practitioners and researchers can repeatedly obtain a large amount of undisturbed soil in a short time to carry out infiltration experiment research, and a forestry soil research method is innovated.
Owner:BEIJING FORESTRY UNIVERSITY

Rural domestic grey water residue and oil separation efficient integrated pretreatment device

The invention discloses a rural domestic grey water residue and oil separation efficient integrated pretreatment device, and relates to the technical field of grey water pretreatment, the rural domestic grey water residue and oil separation efficient integrated pretreatment device comprises a treatment box, an inspection well and an observation hole which are connected to the treatment box, and a treatment assembly and an adjusting assembly which are arranged in the treatment box, by combining the triple effects of physical adsorption, chemical catalysis and microbial degradation of the suspended matter filler, the difficultly decomposed organic matters and colloidal impurities in the sewage are deeply treated, the degradation efficiency of difficultly decomposed pollutants is greatly improved, deposition in subsequent links is avoided, the treatment load of a subsequent soil infiltration system is reduced, the stable operation of the whole process is ensured, and the treatment cost is reduced. And the treated grey water flows along the water outlet pipe, finally flows into the water outlet channel and flows out along the water outlet. After pretreatment, the concentration of sewage pollutants is greatly reduced, the system is more adaptive to the purification capacity of a soil infiltration system, an efficient preposed guarantee is provided for an infiltration path of rural domestic sewage resource utilization, and compared with a single cavity in the prior art, the integrated design saves the occupied area.
Owner:TECH CENT FOR SOIL AGRI & RURAL ECOLOGY & ENVIRONMENT MINIST OF ECOLOGY & ENVIRONMENT

A sulfur autotrophic multi-stage soil infiltration system and application

The application belongs to the technical field of sewage treatment, and provides a sulfur autotrophic multistage soil infiltration system and application. The system comprises a sulfur autotrophic multistage soil infiltration reactor, an intermittent micro-aeration module, a uniform water distribution module and a water collection layer. The sulfur autotrophic multistage soil infiltration reactor is sequentially provided with a nitrification unit, a denitrification unit and a phosphorus removal unit from top to bottom. The nitrification unit comprises an infiltration layer, and the infiltration layer comprises filler I. The infiltration layer of the denitrification unit comprises mixed filler II, soil mixed blocks comprise mixed filler IV, the infiltration layer of the phosphorus removal unit comprises mixed filler III, and soil mixed blocks comprise mixed filler V. The sulfur autotrophic multistage soil infiltration system has excellent COD cr and nitrogen and phosphorus removal performance, good impact resistance and anti-blocking performance, high economic benefit, small land occupation, solves the problem of insufficient nitrification, strengthens the sulfur autotrophic denitrification process, and promotes the further treatment and application popularization of decentralized sewage.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)

Soil infiltration test equipment

The utility model discloses soil infiltration test equipment and relates to the technical field of soil infiltration measurement. The lifting device comprises a machine frame assembly, a lifting mechanism is arranged on the machine frame assembly, and a movable transverse frame is arranged on the lifting mechanism. According to the utility model, the water retaining disc is arranged on the inner wall of the inner ring cylinder and the water retaining ring is arranged on the inner wall of the outer ring cylinder, so that added water flows down along the inner walls of the inner ring cylinder and the outer ring cylinder under the action of the water retaining disc and the water retaining ring, and the water flows along the inner walls of the inner ring cylinder and the outer ring cylinder due to the tension action of the water, so that the surface impact on earth surface soil is reduced; therefore, the generation of earth surface crust is reduced, and the accuracy of soil infiltration measurement is improved; the motor drives the threaded rod to rotate, so that the movable transverse frame vertically moves along the vertical rod, automatic lifting of the inner ring cylinder and the outer ring cylinder is achieved, the inner ring cylinder and the outer ring cylinder are pressed into earth surface soil by 15 cm, manual operation is not needed, and the test efficiency and safety are improved.
Owner:NORTHWEST A & F UNIV

Novel garden greening soil irrigation equipment

The utility model relates to the technical field of landscaping, and disclose a novel landscape soil infiltration equipment, including equipment fixed base, the front end of equipment fixed base is installed with water source connecting pipe, the top of equipment fixed base is installed with spraying assembly, the bottom of equipment fixed base is installed with fixed link, the top of fixed link is installed with fixed block, the bottom of equipment fixed base is installed with mounting plate, the surface of mounting plate is equipped with two clamping grooves, the inside sliding connection of fixed block has two buckles, the inside fixed connection of fixed block has fixed plate, both sides of fixed plate all are fixedly connected with elastic spring. The novel landscape soil infiltration equipment, through can install the setting of quick disassembly of equipment, can make equipment appear damage, directly remove it from the fixed link, and then do not take out the whole, effectively reduce the operation time of staff, and then significantly improve the operation efficiency.
Owner:JIANGSU HOUTIANXIA CONSTRUCTION TECHNOLOGY CO LTD

Soil infiltration water collecting device

The utility model discloses a soil infiltration water collecting device, and relates to the technical field of environment monitoring. The soil infiltration water collection device comprises a water storage tank, the top of the water storage tank is connected with a plastic basket, the top of the water storage tank is connected with a collection box, a partition plate is arranged in the collection box, a hard plastic filter plate is arranged at the top of the partition plate, and a soft plastic filter plate is arranged in the collection box. By adopting the infiltration water device, the content of trace elements brought by soil infiltration water can be effectively measured, the input flux of soil infiltration in a farmland plough layer can be accurately calculated, and a new technology is provided for accurately measuring an artificial pollution source.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING) +1

Iron-carbon micro-electrolysis coupled with soil infiltration system, application and sewage treatment method

The present application belongs to the technical field of sewage treatment, and particularly relates to an iron-carbon micro-electrolysis coupled soil infiltration system, application and a sewage treatment method. The technical scheme of the present application is an iron-carbon micro-electrolysis coupled soil infiltration system, which comprises, from top to bottom, a soil covering layer, a gravel water distribution layer, a substrate filler layer and a gravel supporting layer; the substrate filler layer is filled with at least iron-carbon filler. The present application further provides application of the iron-carbon micro-electrolysis coupled soil infiltration system in sewage treatment and a sewage treatment method. The present application provides a new option for removal of pollutants in domestic sewage and greenhouse gas emission reduction.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

Forest land water-saving irrigation method based on plant water demand and soil infiltration calculation

The invention provides a forest land water-saving irrigation method based on plant water demand and soil infiltration calculation. The forest land water-saving irrigation method comprises the following steps: (1) determining an effective rainfall utilization coefficient of a forest land; (2) calculating daily evapotranspiration and soil infiltration amount of the forest land; and (3) calculating the daily irrigation volume of the forest land. According to the method, fine management of water-saving irrigation in the plant growing season and efficient utilization of water resources can be achieved, calculation of the daily water demand of vegetation is refined by applying a numerical model simulation technology based on comprehensive observation of rainfall, weather and forest land soil moisture, the daily water demand is divided into vegetation transpiration and soil evaporation, and the vegetation transpiration and the soil evaporation are calculated. In this way, the deep understanding of the vegetation water demand rule can be improved; meanwhile, the quantitative relation between the soil infiltration amount and the rainfall amount is established, the soil infiltration amount is used as the effective rainfall amount, a rainfall coefficient constant calculation method is replaced, and the difference of effective rainfall under different rainfall and vegetation conditions can be reflected more truly.
Owner:INSTITUTE OF ECOLOGICAL PROTECTION & RESTORATION CHINESE ACADEMY OF FORESTRY SCIENCE

Sewage treatment system

The present invention relates to the technical field of sewage treatment, and discloses a sewage treatment system, which comprises: a sulfur autotrophic denitrification subsystem for converting nitrate nitrogen in sewage into nitrogen gas, and outputting the treated sewage to a micro-power biological treatment subsystem through a pipeline; the micro-power biological treatment subsystem is used for filtering suspended solids and chemical oxygen demand in sewage and detecting water quality, and if a detection result meets a first condition, the treated sewage is output to the improved soil infiltration subsystem through a pipeline; the improved soil infiltration subsystem is used for adsorbing and degrading pollutants in the sewage by using a soil infiltration bed, detecting the treated water quality, and outputting the treated sewage to the micro-power infiltrating irrigation subsystem through a pipeline if a detection result meets a second condition; and the micro-power infiltrating irrigation subsystem is used for irrigating vegetation by utilizing the treated sewage. According to the invention, the integration of sewage treatment, soil improvement and agricultural irrigation is realized, and both economical efficiency and environmental benefits are achieved.
Owner:CHINA THREE GORGES CORPORATION +2

A partition wheel irrigation device

The application discloses a kind of partition wheel irrigation type ground irrigation devices, it is related to agricultural irrigation equipment technical field, including water delivery main pipe;Main road pressure stabilizing mechanism is fixedly connected to the end of water delivery main pipe;The invention works synergistically by water delivery main pipe, main road pressure stabilizing mechanism, tee joint, slow closing electric valve, branch pressure stabilizing mechanism, partition water delivery branch pipe and uniform flow outlet mechanism, utilizes main road pressure stabilizing mechanism to absorb water hammer impact and pressure fluctuation when wheel irrigation switching, cooperates slow closing electric valve to reduce hydraulic transient effect gently open and close, then by branch pressure stabilizing mechanism secondary steady flow pressure equalization, finally by uniform flow outlet mechanism stable uniform water, effectively avoid the problems such as pipe network pressure sudden rise sudden drop, pipeline and valve damage caused by valve switching, eliminate the phenomenon that field ditch and ridge irrigation water flow is uneven and soil infiltration depth is not the same, significantly improve the overall irrigation uniformity and system operation safety of partition wheel irrigation, meet modern agricultural precision ground irrigation operation demand.
Owner:SICHUAN AOHONG CONSTR ENG CO LTD

Tobacco root-knot nematode killing device

The utility model belongs to the technical field of disease control, and particularly relates to a tobacco root-knot nematode killing device which comprises a supporting plate, an agent containing box is fixed to the upper side of the supporting plate, an agent adding pipe is fixed to the upper side of the agent containing box, and a rotating mechanism is arranged at the right end of the side wall of the supporting plate. The device comprises a rotating mechanism, a vertical plate is fixed to the upper end of the rotating mechanism, lifting mechanisms are fixed to the left side and the right side of the vertical plate correspondingly, and a pesticide spraying pipe and a hole opening rod are fixed to the left end and the right end of the vertical plate through the lifting mechanisms correspondingly. According to the tobacco root trepanning device, longitudinal trepanning is directly carried out at the tobacco root position through the trepanning rod, and the pesticide spraying pipe is inserted into the formed hole after trepanning, so that a chemical agent is sprayed to the inner wall of the hole, the soil infiltration rate of the hole is increased, and the chemical agent can be better in contact with the root to kill nematodes.
Owner:CHINA NAT TOBACCO CORP SICHUAN CO +1

Confluence of runoff and neural network fusion of extreme rainfall infiltration prediction method

PendingCN122332793ARainfall runoffSoil science
This invention discloses a method for predicting extreme rainfall runoff and infiltration by fusing confluence calculation and neural networks. The method includes: constructing a two-way coupling mechanism between surface runoff and soil infiltration processes; dynamically allocating rainfall through runoff over-infiltration determination; feeding the runoff results as source terms to a GPU parallel confluence calculation framework; dynamically feeding soil moisture back to infiltration capacity calculation; and iteratively solving the water balance equation using an implicit or semi-implicit scheme. This method achieves dynamic coupling and collaborative simulation of multiple water cycle processes under a unified framework, solving the problems of separation between surface water dynamics and infiltration models, non-conservation of mass, and insufficient physical consistency under extreme conditions in traditional methods.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Mountain torrent multi-stage physical early warning method based on causal deduction of disaster chain

The invention provides a mountain torrent multi-stage physical early warning method based on disaster chain causal deduction, and relates to the technical field of mountain torrent disaster prevention and control, and the method comprises the steps: collecting landform, soil, vegetation and other basic data, calculating basin parameters, obtaining the average soil water content of a basin to quantify saturation and deficit potential energy, and predicting water and soil energy storage; calculating an overall instability index based on soil infiltration and mechanical balance to predict slope instability, calculating total runoff by combining the unstable runoff and surface runoff, obtaining a flood peak by means of a confluence amplification coefficient, calculating a mountain torrent impact energy index associated disaster grade, and issuing early warning. Through causal deduction of a disaster chain and simplification of a physical law, a mountain torrent inoculation-generation-development-disaster-causing whole chain is deconstructed into a multi-stage physical process, through early warning from energy inoculation to kinetic energy disaster-causing is achieved, result credibility and early warning accuracy are improved, effective early warning time is prolonged, and the method is suitable for business popularization in mountainous areas and has a wide application prospect. And the last kilometer of early warning is opened.
Owner:ZHEJIANG INST OF HYDRAULICS & ESTUARY

Close planting management method for dynamically regulating and controlling growth period of middle-late maturing corn

The invention discloses a dense planting management method for dynamically regulating and controlling the growth period of mid-late maturing corn, and particularly relates to the technical field of cultivation density management, the row spacing, the plant spacing and the cultivation density are dynamically adjusted by collecting data such as a gradient difference value, a runoff speed, a soil infiltration rate, the number of lasting days of a flowering period and a plant height increasing rate in combination with requirements of crop growth stages. The scheme comprises omnibearing data acquisition and analysis from field terrain to a crop growth stage, and ensures that the cultivation density adapts to the environment in the whole growth period. According to the method, the cultivation density is precisely and dynamically regulated and controlled, and the problems of resource waste and uneven crop growth caused by fixed density configuration in the prior art are solved. By considering factors such as gradient, soil infiltration and flowering phase, flexible adaptation to different growth stages and environmental conditions is realized, the resource utilization efficiency of crops is optimized, and the yield and quality are improved.
Owner:AGRI SCI RES INST OF THE FOURTH DIVISION OF XINJIANG PROD & CONSTR CORPS

Preparation method of sludge-based porous ceramsite

The invention relates to the technical field of reservoir area sludge treatment, in particular to a preparation method of sludge-based porous ceramsite. In order to solve the problem that in the prior art, a sludge-based porous material for improving the soil infiltration and storage capacity is lacked, the preparation method of the sludge-based porous ceramsite is provided and comprises the following steps that 1, a reservoir area sludge sample, straw and clay are pretreated; (2) carrying out physicochemical property analysis on the raw materials, carrying out a single factor test, and determining a proper ratio and a roasting parameter range; (3) designing test parameters of the response surface, and generating a plurality of groups of different proportions and roasting parameter groups; (4) carrying out a roasting test according to the generated multiple groups of different proportions and roasting parameter groups; (5) measuring the sample to finally determine the optimal ratio and roasting parameters of the raw materials; and (6) preparing the sludge-based porous ceramsite according to the optimal ratio and the optimal roasting parameters. According to the sludge-based porous ceramsite obtained by the preparation method disclosed by the invention, the infiltration and storage capacity of soil is effectively improved.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

Soil infiltration performance measurement method based on generative adversarial network

The invention relates to a soil infiltration performance measurement method based on a generative adversarial network, and belongs to the technical field of agricultural water and soil engineering and artificial intelligence image processing. According to the invention, a training data set is self-established, the image is repaired through the improved generative adversarial network, and the establishment of the generator is based on the U-net network. Gated convolution is used for replacing all common convolution, a global context attention mechanism is embedded on jump connection of an encoder and a decoder, a multi-scale structure is used for replacing an original single-scale structure, and spectrum normalization is applied behind convolution layers of all discriminators. The method disclosed by the invention is used for measuring the soil infiltration performance, and can be used for effectively removing shelters in the earth surface image and repairing the sheltered wet area, so that the real earth surface wet area is calculated, and finally the accurate soil infiltration rate is obtained.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES

Sponge city runoff evaluation method and system

The invention discloses a sponge city runoff evaluation method and system, and belongs to the technical field of runoff monitoring, and the method comprises the steps: processing image data obtained based on an unmanned plane oblique photography technology, and obtaining a DOM and a DEM of a sponge city research region; according to the DOM and the DEM, using ArcGIS software to divide sub catchment areas and extracting geometric parameter data of the sub catchment areas; obtaining infiltration parameter data required by the SWMM model based on the unmanned aerial vehicle oblique photography technology through a soil infiltration experiment; and inputting the geometric parameter data and the infiltration parameter data into the SWMM model, carrying out manual calibration on residual parameters of the SWMM model, adding rainfall data, constructing the SWMM model based on an unmanned aerial vehicle oblique photography technology, and evaluating a sponge city total runoff amount control target by simulating and researching a regional surface runoff process. According to the method, the evaluation accuracy of sponge city runoff simulation is improved, and the requirement for simulation of total runoff control of a single facility or a higher-precision model in sponge city construction can be met.
Owner:CHINA UNIV OF MINING & TECH

Soil infiltration apparatus

ActiveCN309701552SHydrometrySoil science
1. The name of the design product: soil infiltration apparatus. 2. The use of the design product: for measuring the hydrological properties of soil, in particular the saturated hydraulic conductivity of soil. 3. The design features of the design product: in shape. 4. The picture or photo that best indicates the design features: perspective view.
Owner:SHANDONG LAIENDE INTELLIGENT TECH CO LTD

Soil infiltration testing apparatus

1. The name of the design product: soil permeation experiment device. 2. The use of the design product: the design product is used for soil permeation experiment in the laboratory. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. The rear view is the same as the front view, and the rear view is omitted. 6. The design product is made of transparent material.
Owner:SICHUAN UNIV

A paddy field irrigation amount monitor

The application provides a rice field irrigation quantity monitor and relates to the technical field of agricultural irrigation research and production. The control decision device of the application only uses one water level meter, and through a water supply outer ring, an infiltration inner ring, the water level meter, a water inlet pipe, a water supply pipe, a water inlet electromagnetic valve and a water supply electromagnetic valve, physical separation and independent calculation of two components of surface water storage and soil infiltration during the irrigation process are realized, and the problem of large irrigation quantity calculation error caused by ignoring rapid infiltration under the no-water layer irrigation mode is fundamentally solved.
Owner:HOHAI UNIV

Sprinkling machine structure parameter optimization method based on response surface method

The invention aims to solve the problems of poor utilization rate of water resources and great influence of equipment parameters and operation conditions in the operation of the sprinkling machine. According to the research, spray irrigation intensity and uniformity are taken as key evaluation indexes, the spray irrigation intensity determines soil infiltration and runoff risks, the uniformity affects space-time consistency of crop moisture acquisition, and four influence factors including spray nozzle spacing, spray nozzle height, spray nozzle pressure and running speed are selected; the optimal hydraulic performance interval range is selected on the basis of a single-factor test result, a mathematical model under the multi-factor coupling effect is established through a response surface method, the influence rule of the mathematical model on the hydraulic performance is explored, multi-target optimization analysis is carried out, the optimal parameter combination of structural parameters of the sprinkling machine is obtained, and the hydraulic performance of the sprinkling machine is improved to the maximum extent. Researches prove that the response surface method can effectively analyze a multi-parameter coupling mechanism, an optimal sprinkler structure combination parameter is obtained, a theoretical basis is provided for sprinkler design and field operation, and the method has engineering popularization value.
Owner:WENLING RES INST OF FLUID MASCH JIANGSU UNIV +1

Soil infiltration rate fitting method, device and readable storage medium

The present application relates to the field of soil hydrology calculation, specifically to a soil infiltration rate fitting method and device, original observation data of soil infiltration test is collected to generate an infiltration rate-time sequence; the data set corresponding to the infiltration rate-time sequence is filtered according to a preset rule to obtain a target data set; a fractional order infiltration rate fitting model is constructed; a target function is constructed based on the target data set and the fractional order infiltration rate fitting model; the target function is optimized for parameters based on a particle swarm optimization method to obtain optimal parameters; a soil infiltration rate fitting curve is generated and a soil infiltration rate fitting result is output according to the optimal parameters. By incorporating exponential decay and power law decay characteristics into a unified mathematical framework, the infiltration decay process under different soil textures and test conditions is uniformly represented, the fitting accuracy and robustness are improved, the model selection sensitivity is reduced, and the stability and realizability of soil infiltration rate numerical calculation are ensured.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI

A water-saving irrigation method for forest land based on plant water requirement and soil infiltration calculation

This invention provides a water-saving irrigation method for forest land based on plant water requirements and soil infiltration calculations, comprising the following steps: (1) determining the effective rainfall utilization coefficient of forest land; (2) calculating the daily evapotranspiration and soil infiltration of forest land; and (3) calculating the daily irrigation volume of forest land. This invention enables refined management of water-saving irrigation and efficient utilization of water resources during the plant growing season. Based on comprehensive observation of rainfall, meteorology, and forest land soil moisture, numerical model simulation technology is applied to refine the calculation of daily water requirements of vegetation, breaking it down into vegetation transpiration and soil evaporation, which can improve the in-depth understanding of the water requirements of vegetation. At the same time, a quantitative relationship between soil infiltration and rainfall is established, and soil infiltration is used as the effective rainfall, replacing the calculation method of the rainfall coefficient constant, which can more realistically reflect the differences in effective rainfall under different rainfall and vegetation conditions.
Owner:INSTITUTE OF ECOLOGICAL PROTECTION & RESTORATION CHINESE ACADEMY OF FORESTRY SCIENCE

Forest land rainfall guide, storage and infiltration promotion integrated regulation and control method and system based on horizontal ditch

The invention discloses a forest land rainfall guide, storage and infiltration promotion integrated regulation and control method and system based on a horizontal ditch, and relates to the technical field of water and soil conservation and forestry ecological engineering.The method comprises the steps that a slope separation and reverse slope horizontal ditch project arranged along a contour line is constructed on a forest land slope and used for intercepting and collecting slope runoff; a runoff regulation and control device matched with the slope separation and reverse slope horizontal ditch project is arranged and used for actively regulating and controlling the runoff volume converged into the slope separation and reverse slope horizontal ditch project; executing target enhanced infiltration operation in the soil infiltration area of the slope separation and reverse slope horizontal ditch project; through the cooperation of the slope separation and reverse slope horizontal ditch project, the runoff regulation and control device and the targeted enhanced infiltration operation, the whole process of rainfall runoff interception from the earth surface, guide and storage to deep infiltration is subjected to integrated management. According to the application, a comprehensive technology for integrated management of the whole process from runoff interception, guide and storage to deep infiltration can be realized, and natural runoff is converted into controllable and efficient soil moisture supply resources.
Owner:INST OF DESERTIFICATION CONTROL NINGXIA ACAD OF AGRI & FORESTRY SCI (NINGXIA KEY LAB OF SAND CONTROL & WATER & SOIL CONSERVATION)

A method for calculating rainfall infiltration and runoff of slope suitable for any initial water content distribution

ActiveCN115994446BSoil scienceWater volume
The application provides a kind of slope rainfall infiltration-runoff calculation method suitable for any initial water content distribution, comprising step 1, according to the initial water content profile of soil, equal interval segmentation, a discrete soil infiltration capacity curve is obtained by calculation;Step 2, based on the discrete curve, using binomial slope infiltration formula regression fitting, obtain continuous infiltration capacity curve and cumulative infiltration curve;Step 3, using continuous infiltration curve, by the change data of rainfall intensity with time, the waterlogging occurrence time and runoff production are obtained by calculation.The application deduces the analytical solution that can accurately describe the homogeneous soil slope water infiltration under constant water head boundary conditions, and develops a kind of rainfall infiltration-runoff calculation method that can quickly calculate any initial water content distribution.The method is stable, fast, and ensures water balance, while avoiding complex time and space discretization operation.
Owner:INST OF SOIL SCI CHINESE ACAD OF SCI

Soil water seepage detection device for geotechnical engineering

InactiveCN121933412APermeability/surface area analysisWater conductivitySoil infiltration
The invention relates to the technical field of soil water seepage detection, in particular to a soil water seepage detection device for geotechnical engineering, which comprises a mounting bottom plate, a round hole formed in the end surface of the mounting bottom plate, an adjusting part mounted on the left side of the end surface of the mounting bottom plate, and a fixing part mounted on the right side of the end surface of the mounting bottom plate. The round hole is located between the fixing piece and the adjusting piece, the adjusting piece is rotationally provided with one mounting plate, the fixing piece is rotationally provided with the other mounting plate, the end faces of the two mounting plates are provided with a plug connector in a matched mode, and the bottom faces of the two mounting plates are provided with an auxiliary piece in a matched mode; in the using process of the device, through mutual cooperation of the structures, soil wall collapse is prevented, an initially designed water injection boundary can be kept, accordingly, the relation between the infiltration area and time is accurately calculated, real soil infiltration rate, saturated hydraulic conductivity and other parameters are obtained, and the effect of improving the accuracy of detection data is achieved.
Owner:NANJING FORESTRY UNIV