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80 results about "Soil depth" patented technology

Soil depth. The depth of soil to which the roots of a plant can readily penetrate in order to reach water and nutrients.

Soil Moisture Gauge for Potted Plants

A soil moisture gauge for determining a level of moisture in a plant pot has an elongated main body, which has a lower tip and grooves formed in and along the main body. A graduated scale is formed in the main body over a distance corresponding to a maximum expected soil depth when the gauge is inserted into soil contained in the plant pot. When the gauge is inserted into the plant pot and then pulled out of the plant pot, moist soil is retained in the grooves whereas dry soil falls from the grooves, whereby a user can read moist soil depth on the graduated scale. The reading from the soil moisture gauge can be used as an input to a system to adjust a drying profile that indicates to a user a time by which the plant should be watered.
Owner:WATERWHEN LLC

Intelligent agricultural water-saving irrigation control system based on wireless sensor network

The invention relates to the technical field of intelligent agriculture, in particular to an intelligent agricultural water-saving irrigation control system based on a wireless sensor network, which comprises the steps of acquiring crop information, judging an irrigation regulation and control stage, marking land parcels, reading marks, extracting serial numbers of associated acquisition points to divide data transmission priorities, humidity measurement values of different depths are extracted based on the priority list and compared with a crop root layer demand threshold value to identify a water layer needing to be supplemented, root layer types are distinguished according to the soil layer depth, intervals or continuous irrigation periods are set, and the water supply rhythm is arranged; water supply arrangement is read, and instruction contents such as plot numbers, starting and ending time and water supply depth are generated and combined into tasks capable of being continuously called. By monitoring the crop growth and the soil humidity in real time, the irrigation strategy can be accurately judged and dynamically adjusted to meet the water requirement of each stage, the crop root depth and the soil humidity are accurately matched, the irrigation periods of deep and shallow soil layers are optimized, and a flexible scheme is provided to improve the water resource utilization efficiency.
Owner:DONGGUAN UNIV OF TECH

Efficient plant cultivation device for garden building engineering construction

The invention discloses an efficient plant cultivation device for garden building engineering construction, and relates to the technical field of plant seedling raising. The device comprises a main body frame, wherein a cultivation table is arranged on the main body frame; the soil loosening mechanism comprises a plurality of soil loosening claws which are installed on the cultivation platform and used for stirring soil, each soil loosening claw is fixedly installed on the connecting column, the soil loosening mechanism further comprises a plurality of cultivation barrels which are installed on the cultivation platform and used for containing the soil, and a plurality of vertically-downward spraying holes are formed in the surfaces of the soil loosening claws; the soil loosening claws are driven to reciprocate in the circumferential radius direction of the cultivation barrel through the matching effect of the moving mechanism and the sliding groove mechanism, so that the turning area of the soil loosening claws in the horizontal direction of the soil is increased, and the loosening efficiency of the soil in the horizontal direction is improved; meanwhile, the soil loosening claws are driven to reciprocate in the vertical direction under the matching action of the moving mechanism and the reciprocating mechanism, so that the turning area of the soil loosening claws in the depth direction of the soil is increased, and the efficiency of loosening the soil in the vertical direction is improved.
Owner:HENAN UNIV OF URBAN CONSTR

Farmland nitrogen and phosphorus nutrient online networking monitoring method

The invention relates to the technical field of farmland available nutrient information online acquisition, and discloses an online farmland available nitrogen and phosphorus nutrient networking monitoring method which comprises the following steps: firstly, burying a plurality of sensor combined probes and sampling probes in different depths of farmland monitoring area soil; secondly, constructing a monitoring device at a farmland intersection to extract soil leaching solutions at different depths and monitor the content of available nitrogen and phosphorus nutrients on line; and finally, uploading a monitoring result to a cloud platform for storage, analysis and processing. According to the method, the dynamic change of available nitrogen and phosphorus nutrients in different depths of soil is monitored on line, so that farmland available nutrient information is obtained on line, accurate management of crop nutrients is realized, and the problems of hysteresis and data distortion of a traditional sampling detection method are solved; meanwhile, nutrient distribution of a monitoring area is managed in combination with an internet cloud platform, space nutrient information of a certain farming area is obtained, the fertilization mode is dynamically adjusted, the utilization rate of chemical fertilizer is effectively increased, and a scientific basis is provided for agricultural non-point source pollution prevention and control.
Owner:HENAN AGRICULTURAL UNIVERSITY

A three-dimensional prediction method for organic matter in soda-saline soil

This invention belongs to the field of soil environmental monitoring and discloses a three-dimensional prediction method for organic matter in soda saline-alkali soils. The method includes the following steps: First, multi-source remote sensing, environmental, and soil organic matter measurement data are collected, and a unified coordinate resolution is established to create a grid. Then, land cover features are extracted using UAV imagery and DSM (Digital Signal Processing), and land cover classification is completed by combining shadow restoration. Sub-pixel endmember abundance is calculated using satellite pixel aggregation data. A three-dimensional covariate dataset is constructed by fusing various features with soil depth. Finally, an ExtraTrees model is built to predict the three-dimensional distribution of organic matter layer by layer. This invention integrates multi-source remote sensing data to build a complete technical system, which can accurately characterize differences in surface composition, simultaneously represent the spatial distribution and vertical variation of organic matter, and effectively solve problems such as mixed pixel interference, poor data coordination, and insufficient three-dimensional prediction. It has strong practicality and good application prospects.
Owner:INSTITUTE OF ENVIRONMENT AND SUSTAINABLE DEVELOPMENT IN AGRICULTURE CAAS

Monitoring device for sand burying depth of sand plants

The utility model belongs to the field of sand plants, and particularly relates to a sand plant sand burial depth monitoring device which comprises a monitoring mechanism, a supporting mechanism is arranged on the surface of the monitoring mechanism, and a fixing mechanism is arranged on the surface of the monitoring mechanism. The monitoring mechanism, the supporting mechanism and the fixing mechanism are used in cooperation, the length of plants planted in the sand can be monitored through the monitoring mechanism in the sand planting process, the monitoring mechanism can be supported through the supporting mechanism, and fixing can be conducted through the fixing mechanism when the supporting mechanism needs to be recycled; the problems that in the sand land plant planting process, planting is generally conducted by digging holes with tools, but the digging depth is not very accurate generally, so that the planted plants are not located in the soil depth suitable for survival, or the planted plants are blown away by strong wind due to the too small depth, and consequently the follow-up growth of the plants is affected are solved.
Owner:INNER MONGOLIA AUTONOMOUS REGION ACAD OF FORESTRY SCI

Adjustable buckle petal plough

A supporting seat is arranged at the top of a variable speed driving box, an angle adjusting disc and a vertical positioning shaft are arranged on the supporting seat, a handrail fixing seat is fixed to the upper portion of the supporting seat, the vertical positioning shaft penetrates through the handrail fixing seat, and a bearing is arranged between the vertical positioning shaft and the handrail fixing seat. A traction type positioning assembly is arranged in the handrail fixing base and used for achieving positioning after the horizontal angle is adjusted. The supporting seat is also provided with a positioning cylinder which is matched with a swing adjusting sheet on the handrail to realize the adjustment of the vertical operation height of the handrail; a nut seat and a screw rod are further fixed on the plough blade swing rod and used for achieving swing adjustment of the plough blade in the vertical direction, and the adjusting structure is used for adjusting the soil eating depth. The soil turning device is further provided with a swing adjusting assembly used for adjusting the soil turning depth.
Owner:DEZHOU JINNONG MASCH MFG CO LTD

A method for cultivating three-color leeks

The present application belongs to the technical field of vegetable planting, and particularly relates to a three-color leek cultivation method. The three-color leek cultivation method provided by the present application comprises the following steps: after leek is grown in an open field to a plant height of 28-35 cm, the leek is grown in the dark for 3-6 days, the leek grows yellow leaves, the yellow leaves grow to 5-15 cm, and the three-color leek is obtained by harvesting the leek with a soil depth of 3-5 cm. The cultivation method adopts an open field + covering and shading mode, the leek is grown in the open field for 23-26 days, and the leek is covered and shaded for 3-6 days, so that the production time of one crop is 27-32 days. The three-color leek production is easy to operate and good to manage. When large-scale planting of the three-color leek is performed, a shading arched shed can be built after the leek grows to a certain height, so that the cultivation efficiency of the three-color leek can be significantly improved. The three-color leek has a low content of coarse fibers, a good quality, and a good taste. Compared with leek production, the three-color leek production can increase the annual income per mu by 52.57%.
Owner:PINGDINGSHAN PINGFENG SEED IND CO LTD +1

Water conservancy project dam reinforcing equipment

The invention relates to the technical field of water conservancy projects, in particular to water conservancy project dam reinforcing equipment which comprises a plurality of reinforcing mechanisms connected through bolts, a drainage mechanism is arranged in the middle of the lower portion of a small number of reinforcing mechanisms, a plurality of isolation mechanisms are arranged on the periphery of the drainage mechanism in an array mode, and each reinforcing mechanism comprises a reinforcing frame. An arranged moisture absorption assembly efficiently absorbs excessive moisture through high-density sponge and a hydrophilic thin copper pipe, a continuous dehumidification channel is formed in cooperation with a liquid pumping device, a drainage mechanism can accurately supplement water to dry soil, soil of different depths can be adapted through adjustment of a piston plate, permeation damage caused by excessive moisture or cracking caused by insufficient moisture is avoided, and the moisture absorption effect is good. The dam body soil is ensured to be in a stable state all the time, the fine sand of the isolation frame can prevent clay from caking to block the moisture absorption assembly, a breathing space is reserved for the high-density sponge, the continuous water absorption efficiency is guaranteed, and a reinforcing unit with a drainage mechanism and an isolation mechanism can be flexibly arranged according to the requirements of the dam.
Owner:SUZHOU HONGDA CONSTR ENG CO LTD

Geologic exploration rock-soil depth measuring device

The utility model relates to the technical field of geological survey equipment, and particularly discloses a geological survey rock soil depth measuring device which comprises a support and a soil breaking mechanism arranged on the support, a fixing mechanism is further arranged on the support and arranged on a bottom plate of the support, and the fixing mechanism comprises a connecting plate movably arranged below the bottom plate of the support. A plurality of plug pins are arranged on the lower side of the connecting plate. When the device is used, the motor drives the bidirectional lead screw to rotate so as to drive the push rod to move to extrude the stress blocks on the two sides, the extruded stress blocks can move downwards to synchronously drive the connecting plate and the plug pins to move until the plug pins are driven to be inserted into soil, and the device can be limited and fixed through the plug pins; therefore, the stability of the device in the measurement process is improved. The problems that in the drilling process of a drill bit in the prior art, the whole device is prone to displacement, shaking and even overturning under the influence of counter-acting force, vibration and torque, and the measurement accuracy of the device is affected are solved.
Owner:SHAANXI ZHONGNENG QIHANG ENERGY TECH CO LTD

Crop digging depth control system and control method based on ground penetrating radar

A kind of crop digging depth control system and method based on ground penetrating radar belong to wisdom agricultural machinery field.System includes vehicle body module, excavating mechanism, ground penetrating radar, lifting mechanism and control module.Ground penetrating radar detects crop root system buried depth by relative time difference method, and target depth is calculated in combination with safety margin;Control module adopts fuzzy self-adaptive PID algorithm, dynamically adjusts control parameters according to target depth and actual depth deviation, drives electric push rod to adjust digging shovel into soil depth, and realizes closed-loop control.The present application can sense crop underground position in real time, automatically adapt to soil condition change and terrain undulation, effectively avoid over-shallow missed digging or over-deep damage, significantly improve harvesting completeness and reduce energy consumption, and is suitable for tuber crops harvesting.
Owner:YANGZHOU UNIV

Hydrogeological sampling device

The invention discloses a hydrogeological sampling device, and relates to the technical field of geological sampling equipment. Comprising a base which is provided with a vertical plate. The lifting driving mechanism is connected to the base, and the lifting driving mechanism is in sliding connection with the vertical plate; the telescopic connecting mechanism is connected to the lifting driving mechanism; the drilling and sampling mechanism comprises a drilling mechanism and a uniform sampling mechanism, the drilling mechanism is connected to the bottom end of the telescopic connecting mechanism, the uniform sampling mechanism is connected to the drilling mechanism, and the uniform sampling mechanism is used for uniformly sampling soil; the PLC is electrically connected with the lifting driving mechanism and the drilling sampling mechanism; and the storage battery is electrically connected with the PLC, the lifting driving mechanism and the drilling sampling mechanism. The hydrogeological sampling device disclosed by the invention can be used for sampling in four directions of the same soil depth, the sampling efficiency is higher, impurities can be prevented from being taken during drilling due to the arrangement of the plugging mechanism, and the device is better in practicability.
Owner:THE SECOND HYDROGEOLOGY & ENG GEOLOGY BRIGADE OF SHANDONG PROVINCIAL BUREAU OF GEOLOGICAL EXPLORATION (SHANDONG LUBEI GEOLOGICAL & ENG SURVEY INST)

In-situ thermal desorption heating device

The utility model belongs to the technical field of soil remediation, and discloses an in-situ thermal desorption heating device which comprises a heating outer pipe arranged in a heating well and a heating inner pipe arranged in the heating outer pipe, the upper end of the heating inner pipe is connected with a combustor, the heating outer pipe comprises a common outer pipe section and a finned pipe section which are arranged from top to bottom, and the common outer pipe section is connected with the finned pipe section. Fins are arranged on the outer wall of the finned tube section, the heating inner tube comprises a rough tube section and an expansion tube section connected with the lower end of the rough tube section, and at least one part of the expansion tube section is opposite to the finned tube section. According to the heating outer pipe, the finned pipe section is arranged on the heavily polluted soil layer, so that heat conduction is accelerated; a common outer pipe section is arranged in a light pollution area, so that heat transfer is reduced, and the cost is saved; the heating inner pipe is provided with a rough pipe section and an expansion pipe section, so that heat is concentrated in the bottom area of the heating well; the in-situ thermal desorption heating device is suitable for polluted plots with deeper soil depth, energy consumption is saved on the basis of guaranteeing the remediation effect, and good economic benefits are achieved.
Owner:SICHUAN JINMEI ENVIRONMENTAL PROTECTION TECH

Agricultural fixed-depth digging shovel

The utility model relates to the technical field of agricultural science and technology soil tools, in particular to an agricultural fixed-depth digging shovel which comprises a fixed shovel body, a clamping groove is formed in the side face of the fixed shovel body, an insertion rod is clamped to the inner wall of the clamping groove, a positioning plate is clamped to one end of the insertion rod, and an adjusting plate is fixedly connected to one end of the positioning plate. The top of the fixed shovel is provided with scale marks, one end of the fixed shovel is fixedly connected with a fixed cylinder, and the side face of the fixed cylinder is in threaded connection with a fixed bolt. According to the agricultural fixed-depth digging shovel, through the arrangement of the fixed shovel body, the insertion rod, the positioning plate, the adjusting plate and the scale marks, when the agricultural fixed-depth digging shovel is used, a worker can adjust the position of the adjusting plate on the fixed shovel body according to the depth of soil needing to be dug in agricultural research and the scale marks on the fixed shovel body; and then the inserting rod is inserted into the positioning plate on the adjusting plate and is in butt joint with the inserting groove in the side face of the fixed shovel.
Owner:MIANYANG FENGYUSHENG AGRICULTURAL TECHNOLOGY CO LTD

Soybean and corn intercropping film mulching and fertilizing method with slow-release nitrogen fertilizer matched with biodegradable mulching film

The invention discloses a soybean and corn intercropping film mulching and fertilizing method with a slow-release nitrogen fertilizer matched with a biodegradable mulching film. The method comprises the steps of field design, field soil preparation, fertilization, selection of the slow-release nitrogen fertilizer, sowing, mulching of the biodegradable mulching film, field management and harvesting. After crops are harvested, biodegradable mulching film residues are not collected, the biodegradable mulching film residues are naturally degraded in the field, before sowing in the next season, the mulching film residues are ploughed and buried into soil by the depth of 20-30 cm, and soil preparation is conducted again. According to the method, the field management cost and labor input are reduced, the problems that weeds are difficult to remove in soybean and corn intercropping and nitrogen fertilizer utilization in the later period of crops is insufficient when a biodegradable mulching film is applied in cooperation with conventional urea are solved, and meanwhile the yield increasing purpose is achieved; and the soil nitrogen fertilizer utilization efficiency is improved, the soil microbial activity is promoted, the stability of a soybean and corn strip intercropping system is ensured, and meanwhile, the situation that the crop growth nutrition is insufficient due to combined application of the biodegradable mulching film and conventional urea is effectively coped with.
Owner:SICHUAN AGRI UNIV

Liquid manure precise application and deep scarification cooperated soil body improvement device and method

The invention relates to the technical field of agricultural machinery and soil improvement, in particular to a liquid manure precise application and deep scarification cooperative soil improvement device and method, and the device comprises a sensing module (online NIR, TDR type soil moisture sensors and the like), an execution module (tractor automatic driving, hydraulic depth control and the like), a control module and a communication module; according to the method, through three linkage of manure characteristics-advancing speed, soil moisture content-deep scarification depth-fertilization amount, historical yield-real-time growth vigor and combination of normalized control and dynamic adjustment of operation parameters, according to the liquid manure precise application and deep scarification collaborative soil body improvement device and method, the nutrient deviation of a unit area can be controlled within + / -5%, and the soil quality is improved. The crop yield is increased by 10%-20%, the nutrient utilization rate is increased by 10%-15%, the waste is reduced by more than 25%, the service life of equipment is prolonged by about 20%, and the device is suitable for precise deep application of manure and soil improvement operation of field crops such as corn and wheat.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI +1

Method and system for efficiently detecting soil moisture content in cane fields

This application relates to the field of data processing technology, specifically to a method and system for efficiently detecting soil moisture content in sugarcane fields. The method includes: acquiring sampling point data and historical water consumption data from multiple sampling points in a sugarcane field area; clustering the multiple sampling points based on the sampling point data of each sampling point to obtain multiple sampling point clusters; determining the depth attenuation coefficient of each sampling point cluster based on the root density, soil dielectric constant, and historical water consumption data of the sampling points contained within each cluster; performing spatial interpolation processing on the soil volumetric water content of the sampling points contained within each cluster based on the depth attenuation coefficient of each sampling point cluster to obtain the whole-field moisture content distribution data of the sugarcane field area; and determining the total moisture content within the middle soil depth range based on the whole-field moisture content distribution data. This method can obtain accurate quantitative total moisture content within the middle soil depth range.
Owner:GUANGXI UNIV

Soil salinity inversion method, apparatus, and electronic device

The application provides a soil salinity inversion method, device and electronic equipment. The soil salinity inversion method comprises the following steps: training an initial soil inversion model to obtain a trained soil inversion model; obtaining target feature data of a target soil region; inputting the target feature data into the soil inversion model to obtain soil salinity inversion data of the target soil region output by the soil inversion model; wherein the soil inversion model comprises multiple soil inversion sub-model layers, different soil inversion sub-model layers correspond to output of salinity inversion data of different soil depths; the input of the first soil inversion sub-model layer comprises the target feature data, and the input of the Nth soil inversion sub-model layer comprises the target feature data and output data of the (N-1)th soil inversion sub-model layer, wherein N is a positive integer greater than 1. The method can significantly reduce the prediction error caused by the increase of soil depth by using the hydraulic connection between adjacent soil layers, and improve the salinity inversion accuracy.
Owner:FARMLAND IRRIGATION RES INST CHINESE ACAD OF AGRI SCI

Rapid soil depth auxiliary soil sampling device

The utility model discloses a rapid soil depth auxiliary soil sampling device, and relates to the technical field of measuring instruments. A plurality of sliding plates are evenly arranged on the surface of the sliding frame in a penetrating and sliding mode. Two sliding grooves are symmetrically formed in the opposite side faces and the back-to-back side faces of the sliding plates, and push plates are horizontally arranged on the inner walls of the sliding grooves in a sliding mode. A spring capable of pushing the push plate to slide outwards is fixed to the inner wall of the sliding groove, and a dragging plate capable of rotating between the horizontal direction and the vertical upward direction is rotationally arranged on the side face, close to the bottom, of the sliding plate. The soil depth of the corresponding position can be quickly obtained through the scales on the sliding plate after the sliding plate is inserted into the soil by arranging the sliding plate with the scale marks, and meanwhile, the soil in the inner ring is subjected to inward compression gathering force by arranging the spring and the push plate, and the soil in the outer ring is subjected to outward thrust. The soil of the inner and outer rings forms partition layering, and the soil of the inner ring is more compact, so that soil sampling is facilitated.
Owner:江西省 中国科学院庐山植物园

Hydrothermal coupling numerical model to identify the distribution of permafrost type index

The application discloses a water-heat coupling numerical model melting depth discrimination permafrost type index distribution method, and relates to a soil index distribution method, which comprises the following processes: determining a melting area spatial distribution according to a melting depth process obtained through water-heat coupling simulation; combining a three-dimensional soil temperature field to discriminate permafrost and seasonal frozen soil grids, and obtaining spatial distributions of the two types of frozen soil; and according to the two types of frozen soil, solving and determining a permafrost depth spatial distribution of a permafrost area and a maximum frozen soil depth spatial distribution of a seasonal frozen soil area. The application effectively expands the application range of the water-heat coupling numerical model; compared with the prior art, the application has obvious improvement in the aspects of strong experience, insufficient mapping range, accuracy and fineness in frozen soil mapping, and is unable to discriminate frozen soil types, and overcomes the defect that the prior art fails to consider the melting area in permafrost mapping.
Owner:NORTHWEST A & F UNIV

Split type suction pile anchoring foundation

The utility model discloses a split type suction pile anchoring foundation, which relates to the technical field of ocean engineering and comprises a suction pile structure and a buoyancy tank structure. An apron board structure and a lug plate structure are arranged on the side wall of the suction pile structure; a drainage pipeline penetrates through the top of the suction pile structure and communicates with the interior of the suction pile structure and the water suction pump. A balance weight cabin and a ballast tank are arranged in the buoyancy tank structure, and a pressure discharging and loading system is arranged in the ballast tank; the supporting leg structures are arranged at the bottom of the buoyancy tank structure, and the buoyancy tank structure is pressed on the apron board structure through the supporting leg structures; a first eye plate connected with a mooring rope or a mooring chain is arranged on the outer side wall of the buoyancy tank structure. The technical problems that due to the fact that a traditional suction pile anchoring foundation is limited by the dead weight and the depth of penetrating into soil in the soil conditions such as sandy soil is insufficient, enough pressure difference cannot be generated in the closed space formed by the cylinder wall and the soil in the space outside the cylinder wall, and the suction barrel can reach the preset installation depth and the designed tensile strength and the designed pulling strength are solved.
Owner:CNOOC (CHINA) CO LTD BEIJING NEW ENERGY BRANCH

A high-efficiency duckbill type seeding device suitable for oilseed rape seeding

PendingCN122623476ASeederLaser ranging
The application discloses a ridge-forming efficient duck-bill type seeding device suitable for rapeseed seeding, and relates to the rapeseed seeding technical field.The device comprises a rack, a power assembly arranged on the upper portion of one side of the rack, a ridge-forming mechanism arranged on the lower side of the power assembly, a seeding mechanism arranged on the side of the rack away from the power assembly, and a leveling mechanism arranged on the side of the seeding mechanism away from the power assembly.The ridge-forming mechanism comprises an auxiliary assembly, a ploughing roller for ploughing and a ridge-forming plate for ridge forming.The device can adjust the length of the moving cylinder extending out of the pile according to the planting requirements before seeding, and can detect the ridge height change in real time through a laser ranging module during the seeding process, so that the position of the support is automatically adjusted through the cooperation of the electric telescopic rod, so that the moving cylinder always maintains the stable soil depth, and the device has the advantages of solving the problems that the rapeseed seeding depth is not easy to control and the seed spacing stability is poor.
Owner:西藏自治区农业技术推广服务中心

An orchard water and fertilizer integrated root zone drip irrigation device and application method

PendingCN122349962AFruit treeSoil science
This invention discloses an integrated water and fertilizer drip irrigation device and its application method for orchards, comprising a drip irrigation mechanism, at least two sets thereof; the drip irrigation mechanism includes drip irrigation pipes and drip irrigation components, each drip irrigation component having a first structure and a second structure, the first structure for implementing above-ground drip irrigation and the second structure for implementing underground drip irrigation; a water delivery mechanism for delivering water and fertilizer to the drip irrigation mechanism to achieve above-ground and / or underground drip irrigation operations; this integrated water and fertilizer drip irrigation device and its application method for orchards, by setting two sets of drip irrigation mechanisms on both sides of the same fruit tree trunk at different soil depths, allows irrigation managers to flexibly choose above-ground drip irrigation only, underground drip irrigation only, or both simultaneously, depending on the fruit tree's growth stage, soil moisture, or weather conditions; through the alternating above-ground and underground drip irrigation method, it can induce a balanced distribution of roots in the soil profile, promoting the fruit tree to develop compensatory water and fertilizer absorption capacity in different soil layers.
Owner:JIANGSU ACAD OF AGRI SCI

Method for analyzing change rule of compactness and in-situ shear strength of deep and thick filling soil

The invention provides a deep filling compactness and in-situ shear strength change rule analysis method. The method comprises the following steps: in a deep and thick soil filling site, selecting a test area to carry out heavy dynamic sounding, recording the sounding impact number of continuous depths in the vertical direction, distinguishing different compactness states of the soil filling according to the numerical distribution of the dynamic sounding impact number, and carrying out a deep hole internal shear test, and the deep hole internal shear test is used for testing the filling internal friction angle corresponding to the heavy dynamic penetration test depth. The method comprises the following steps: calculating a deep hole internal shear test result, comparing the deep hole internal shear test result with the penetration impact number of heavy dynamic penetration in the filling depth direction, simulating a relation curve between the deep hole internal shear test result and the heavy dynamic penetration impact number, and establishing a judgment standard for the change rule of the deep filling compactness and the in-situ shear strength. Reliable theoretical basis and technical guidance are provided for acquisition of key mechanical indexes of deep and thick soil filling, a solid foundation is laid for design and construction of similar projects, and the application prospect is wide.
Owner:WUHAN SURVEYING GEOTECHN RES INST OF MCC

A method for sampling new pollutants in soil

This invention belongs to the field of soil environmental monitoring technology, specifically relating to a method for sampling new pollutants in soil, comprising the following steps: in-situ soil sampling: inserting a soil sampling tube into the selected sampling point to form a soil column inside the tube, pulling out the tube and pushing out the soil column, sealing the soil column with plastic film to complete the sampling packaging; freeze-drying: removing the packaging from the sealed soil column, taking soil samples from the column and freeze-drying them in a freeze dryer; extraction: grinding and sieving the dried soil sample, and obtaining the target pollutant extract using a mixed solvent of acetone and dichloromethane in a pressurized fluid extractor for subsequent detection. This invention employs an in-situ soil sampling method, reducing damage to the soil stratification structure by using a straight cylindrical sampling tube and adding operating holes, preventing cross-contamination of adsorbed pollutants at different soil depths, and effectively reducing the cross-contamination rate during sampling compared to traditional spiral drilling methods that break up the soil.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI

Optical fiber coupling type soil CO2 average concentration measuring method based on TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology

The invention discloses a TDLAS (tunable diode laser absorption spectroscopy) technology-based optical fiber coupling type soil COaverage concentration measurement method, which belongs to the technical field of soil gas monitoring, and comprises the following steps: S1, arranging a sampling pipeline; s2, constructing an optical system; s3, carrying out gas balance and spectrum acquisition; step S4, average concentration inversion: the data processing module analyzes the acquired transmission spectrum signal based on the Lambert-Beer law, calculates the integral concentration of the COgas in the sampling pipeline, and inverts the COaverage concentration at the target soil depth in combination with the length of the sampling pipeline to obtain the COaverage concentration at the target soil depth. By adopting the horizontal long-optical-path sampling design, the spatial average concentration of the COs in the soil at the target depth can be effectively obtained, and the problem of insufficient representativeness of single-point sampling is avoided; the optical fiber transmission mode reduces the environmental interference, improves the measurement stability, and is suitable for long-term and in-situ soil CO concentration monitoring.
Owner:BEIJING HUAYIRUI TECH CO LTD +1

Coal field geological exploration sampling equipment

The utility model relates to the technical field of geological exploration sampling, and one embodiment of the utility model provides coal field geological exploration sampling equipment which comprises a rack, a lifting rod, a first motor, a baffle and a fixing mechanism, a spiral drill rod is arranged in the rack, the lifting rod is arranged in the rack through a lifting mechanism and used for driving the spiral drill rod to perform height movement, and the first motor is used for driving the baffle to perform height movement; the first motor is installed on the lifting rod, the output end of the first motor penetrates through the lifting rod and is axially and fixedly connected with the top end of the spiral drill rod, the two baffles are arranged on the rack through the opening and closing mechanism and used for blocking soil on the spiral drill rod, and the fixing mechanism is arranged on the rack and used for fixing the rack to the ground. By means of the technical scheme, the technical problem that in the prior art, when soil is brought out of a hole by a spiral drill rod, soil is prone to scattering around the hole, soil depth information is difficult to correspond, and the sampling effect is prone to being affected is solved.
Owner:河北省煤田地质局环境地质调查院

Beidou positioning-based surface mine slope deformation monitoring method

The invention relates to the field of slope safety monitoring, in particular to a surface mine slope deformation monitoring method based on Beidou positioning, which comprises the following steps: S10, acquiring a slope radar remote sensing image, and constructing a slope terrain three-dimensional model; and the soft depth of each position of the side slope is obtained through processing in combination with the rock stratum gaps of each position of the side slope, and a soft area and a hard area are marked in the three-dimensional terrain model according to the soft depth. According to the invention, soft and hard areas of the slope are divided through radar remote sensing, Beidou positioning devices are arranged in a targeted and differentiated manner, geological characteristics and terrains are adapted, monitoring resource configuration is optimized, environmental influence and maintenance cost are reduced, data verification of adjacent devices is combined, monitoring precision and credibility are improved, and the method is suitable for large-scale popularization and application. The problem that the error of the acquired deformation monitoring data of the side slope is large when Beidou positioning devices are uniformly arranged on the side slope with obvious geologic structure difference is solved.
Owner:XINJIANG JINBAO MINING

A deep and large thickness collapsible loess foundation multi-stage grouting collaborative treatment method based on a recyclable capacitive sensor array

The application discloses a deep and thick collapsible loess foundation multi-stage grouting collaborative treatment method based on a recyclable capacitive sensing array, and relates to the field of foundation treatment.The method comprises the following steps: collecting soil in a treatment area and performing experiments, establishing a sample data set containing a collapse coefficient, soil depth, water content and pressure according to experimental data; training a collapse coefficient inversion model by using the sample data set; arranging a recyclable capacitive sensing array in the treatment area, acquiring water content and pressure data at different depths of each position in the treatment area, determining the collapse coefficient of each position by using the collapse coefficient inversion model, and constructing a three-dimensional geological model; dividing the treatment area into collapsible regions based on the three-dimensional geological model, and performing multi-stage grouting according to the division result.The method has the advantages of intelligence, precision and economy, is suitable for complex geological conditions of deep and thick collapsible loess, and has more reliable treatment effect and more controllable construction period.
Owner:中国市政工程西北设计研究院有限公司 +1

Soil depth measuring device for land resource utilization

The utility model discloses a soil depth measuring device for land resource utilization, which relates to the technical field of soil depth measurement and comprises a distance measuring piece, a support frame is mounted on the distance measuring piece, the support frame is slidably connected with adjacent depth measuring point positions for assisting in marking, and a soil contact piece is mounted at the bottom of the distance measuring piece. According to the linkage structure of the distance measuring piece and the threaded sleeve, vertical insertion control is achieved through the first threaded rotating rod, and terrain inclination errors are eliminated in cooperation with the scale adjusting function of the rotating cylinder; a limiting sliding groove of the supporting frame and the transverse measuring piece are integrated with a tape and a ground nail, multi-point rapid positioning and horizontal distance synchronous measurement are supported, and compared with a traditional tool, positioning time consumption is reduced. The auxiliary supporting piece adopts a six-direction adjusting design, and can adapt to complex terrains such as sloping fields through cooperation of a second threaded rotating rod and a positioning inserting rod.
Owner:SHANDONG SHUYUAN GEOGRAPHIC INFORMATION TECH CO LTD