108 results about "Topsoil" patented technology

The invention discloses a method for improving soil fertility of an orchard in a Yellow River old lane area. The orchard is covered with green grass; after the fruits are harvested and before leaves fall, a first fertilization ditch is dug at a crown water drip, and smashed straw, base fertilizer and surface soil are sequentially laid in the first fertilization ditch from bottom to top; meanwhile, digging 3-4 radial second fertilization ditches according to a water drip from a trunk to a crown, sequentially laying dry branches and fallen leaves, wheat straws and livestock and poultry manure in the second fertilization ditches from bottom to top, and putting earthworms into surface straws of the second fertilization ditches; a humic acid-containing water-soluble fertilizer is applied in a drip irrigation manner during topdressing. Therefore, through the synergistic effect of multiple technical measures such as orchard grass covering, organic fertilizer layer application, earthworm density increasing and bio-fertilizer application increasing, a benign soil ecological system is constructed, and therefore the problems that the content of organic matter in orchard soil in the Yellow River old road area is low, and the water and fertilizer retention capacity is weak are effectively solved, the soil fertility is remarkably improved, and the yield of the orchard is increased. And the fruit yield and quality are improved.

The invention discloses a Mars soil simulant performance evaluation method based on spectrum-mechanics combined characterization, which comprises the following steps: acquiring surface soil chemical components and physical and mechanical reference data of a target Mars area, taking basalt, magnetite and hematite as raw materials, solving the optimal mass ratio by adopting an optimization algorithm, and preparing a sample. Then, systematic spectrum characterization is carried out on the sample, and components and spectrum characteristic data of the sample are obtained; and meanwhile, carrying out physical and mechanical property test on the sample to obtain mechanical property data. Further, spectrum and component data serve as independent variables, mechanical data serve as dependent variables, an associated data set is constructed, the influence weight is analyzed, and a component-structure-performance quantitative relation is established. And finally, based on all the data and the internal association thereof, calculating the comprehensive similarity between the simulant and the real Mars soil, and generating a comprehensive performance evaluation report. According to the method, multi-dimensional and standardized quantitative evaluation of chemical, mineral and mechanical properties of the Mars soil simulants is realized.

This application discloses a comprehensive treatment method for salinized soil in semi-arid region, comprises: stripping and collecting the topsoil; spreading sandy soil and / or loess soil as a imported soil layer; spreading an anti-seepage layer, a salt barrier layer and a membrane layer successively on the imported soil layer; mixing clay into the topsoil to obtain mixed soil; blending saline-alkali land conditioner with the mixed soil to obtain planted soil; spreading the planted soil on the membrane layer to obtain a planting layer. The method combines physical, hydraulic, chemical and biological remediation methods to comprehensively manage saline-alkali soil in semi-arid areas. It consumes less water resources, has a shorter treatment cycle, shows quick results, is conducive to plant growth, and can effectively inhibit the return of salt.

The utility model discloses a greening side slope structure based on hanging net spray-seeding, and relates to the technical field of side slope greening. Comprising the steps that a bottom net is attached to a slope; the side nets are connected end to end, the side nets are perpendicular to the bottom net, and the side nets surround the edge of the bottom net and are fixedly connected with the bottom net; the multiple anchor rods penetrate through the bottom net and the side net, and one end of each anchor rod is inserted into the side slope. By arranging the bottom net and the side net, a three-dimensional net can be formed, the spray-seeding thickness can be increased, soil dressing is stable, soil can be effectively fixed on the rock surface, it is guaranteed that the soil is at the effective depth, the greening effect is good, the vegetation survival rate is high, and the water retention and soil holding capacity is high.

The invention relates to the technical field of soil ecology, and particularly discloses a method for quantifying the density of topsoil habitat soil arthropods based on a trap method.The method comprises the following steps that S1, trap method sampling is conducted, specifically, when a soil arthropod sample is collected, a soil auger is used for digging out a trap, a trap cup containing preserving fluid is placed in the trap for soil animal investigation, and the soil arthropod sample is collected; the time duration is one week which is used most widely in the literature; s2, sampling by a digging method: when a soil arthropod sample is collected, placing a prepared sampling frame of one square meter on sampling soil, digging and collecting soil animals with the depth of 10cm in the sampling frame, picking large arthropods by using a hand picking method, and separating medium soil animals such as springtails, mites and insects by using a dry funnel method. According to the method for quantifying the density of the surface soil habitat soil arthropods based on the trap method, the actual soil excavation area can be reduced to the maximum extent, the damage to the soil structure of a sampling field is reduced, and the possibility is provided for long-term experiments.

The invention discloses a coal mining subsidence area gangue continuous filling reclamation system which comprises a central processing hub, a material conveying system and a dynamic treatment operation area which are sequentially arranged, a resource circulation center is arranged on one side of the dynamic treatment operation area, and the resource circulation center is provided with an automatic spraying maintenance system. The central processing hub, the material conveying system, the dynamic treatment operation area, the resource circulation center and the automatic spraying maintenance system are jointly connected with a monitoring and dispatching system. The invention further discloses a continuous gangue filling and reclamation method for the coal mining subsidence area, through the system layout of'one heart, one area and double-flow simultaneous advancing ', high cooperation of gangue disposal and land reclamation is achieved, the scheduling strategy of'space-time decoupling-parallel advancing' is adopted, zero waiting of equipment is achieved through a'pre-jumping 'mechanism, and the reclamation efficiency is improved. Topsoil stripping, gangue backfilling and soil covering reclamation are completely carried out in parallel in space, the potential safety hazard of cross operation of equipment is avoided through a standard logistics path and scheduling, and the overall operation safety is improved.

The invention relates to the technical field of abandoned mine ecological restoration, in particular to a method for restoring a mine through engineering abandoned muck and slurry backfilling. The method comprises the following steps: cleaning a mine pit, leveling a terrain, backfilling engineering waste slag, and laying a tailing transition layer to form a graded tailing layer; impurities in the engineering waste muck are screened out, the engineering waste muck is laid on the grading tailing layer, and a compacted muck layer is obtained through compaction; the method comprises the following steps: flocculating and dewatering engineering waste slurry to obtain cement control slurry, adding an exogenous fertilizer for improvement, and then mixing with field waste slag in proportion and backfilling to form a sludge vegetation layer; according to the method, the waste mine is used as a raw material, the residue covering compost layer and the vegetation surface soil layer with certain thickness are sequentially covered on the waste mine, the synergistic ecological effect of soil reconstruction and restoration treatment of the waste mine is formed, green cyclic utilization of waste resources is achieved, the treatment cost of the waste mine is reduced, and the high efficiency and sustainability of mine ecological restoration are improved.

This application relates to the field of ecological restoration technology, and discloses a vegetation restoration system for drawdown zones and its construction method. The system includes laying equipment and a roller. A drive motor of the laying equipment drives the winding roller to release a coil. The roller includes a fixing rod, is filled with superabsorbent polymer resin, and is sequentially wound with an inner base mat, a middle matrix containing plant stem nodes and fungal spores, and an outer mesh. The inner base mat is interwoven with capillary water-conducting bundles, the bottom of which is inserted into the fixing rod and embedded in the resin. The outer mesh is secured with gravity lever-type anchoring nails via eccentric hinges. During construction, the motor releases the coil at a uniform speed, causing the roller to unfold along the slope. The anchoring nails, as they rotate, droop under gravity and penetrate the topsoil layer for synchronous anchoring. The fixing rod, remaining at the bottom, lifts water upwards through the absorbent resin and water-conducting bundles. This invention achieves mechanized laying of base mats on steep slopes, constructs a capillary water-lifting system to alleviate drought, and improves vegetation survival rates.

This application relates to the field of topsoil quality testing technology, specifically to a method, system, device, and equipment for testing topsoil quality in power transmission and transformation projects. The method includes: collecting topsoil data from mixed soil samples at different depths in various research plots and standard topsoil data from standard mixed soil samples; obtaining comprehensive nutrient indices and comprehensive microbial diversity indices at the same depth for each research plot, as well as the average coupling characteristic value of the research plot; determining nutrient remediation factors and microbial remediation factors for the research plots, and constructing topsoil remediation factors; and determining the topsoil quality testing results for the power transmission and transformation projects in the research plots based on all topsoil data, average coupling characteristic values, and topsoil remediation factors. This application can improve the quality of topsoil quality testing in power transmission and transformation projects.

The application discloses a kind of new afforestation land of Lingnan region rhizoma zingiberis and ganoderma lucidum imitated wild three-dimensional planting method, which comprises the following steps: 1) selecting the new afforestation land of Lingnan region planted with trees within 2 years;2) ridging between the tree rows of new afforestation land, digging ganoderma lucidum planting ditch on the ridge, placing ganoderma lucidum stick horizontally in the ganoderma lucidum planting ditch, connecting head to tail between sticks, covering with broken soil, covering soil layer on the stick, covering dry grass on the soil layer, and carrying out ganoderma lucidum imitated wild planting;3) in April-May, digging hole between ganoderma lucidum sticks, putting one section of rhizome of zingiber officinale rose into each hole after mixing with organic fertilizer and soil, putting bud head upward, filling fine topsoil while putting, and carrying out zingiber officinale imitated wild planting;4) regional weeding and zingiber officinale fertilization;5) ganoderma lucidum and zingiber officinale harvesting.The method can not only realize ganoderma lucidum and zingiber officinale imitated wild planting in new afforestation land, but also improve the utilization rate of new afforestation land, achieve the purpose of cultivation instead of rearing and short-term cultivation instead of long-term cultivation, realize three-dimensional planting of new afforestation land, and improve economic benefit.

The invention relates to the field of mine pit treatment, and particularly discloses a waste mine pit recovery treatment method which comprises the following steps: geological disaster prevention and treatment, one or more treatment of slope cutting, danger clearing, anchoring or retaining wall supporting on an unstable slope of a pit wall area to form waste slag and waste rocks, and stacking part of the waste slag and waste rocks in a slag top area; slope treatment is conducted, specifically, step-by-step slope making is conducted through the excavation slope ratio of 1: 1.25-1: 2, and step-by-step slope making is formed; performing land reclamation and construction to form a retaining wall, a drainage ditch and a slope safety isolation net; covering surface soil, and covering external soil with soil; vegetation recovery; and monitoring, managing and protecting. According to the scheme, when geological disaster prevention and treatment and side slope treatment are carried out, the pit wall area is sequentially constructed, comprehensive slope cutting and danger removing treatment can be carried out on the unstable side slope, stepped slope forming can be sequentially carried out, the final stepped slope forming strength is improved, and the follow-up collapse and landslide danger is reduced.

This invention discloses a vertical adaptive contour-following straw clearing and covering device for hilly sloping farmland, comprising a dual air spring adaptive contour-following suspension, a vertical straw clearing attitude adjustment mechanism, an umbrella-shaped linkage straw clearing radius stepless adjustment mechanism, and a passive contour-following elastic covering device. The straw clearing mechanism mainly consists of an umbrella-shaped linkage radius adjustment drive cylinder, an umbrella-shaped linkage low-wear angle adjustment slider, and a straw clearing spring tooth assembly, used for continuous stepless adjustment of the straw clearing operation radius and synchronous high-precision control of the spring tooth operation angle, completing the directional throwing and clearing of straw in the seed strip. The contour-following suspension mechanism mainly uses two sets of symmetrically arranged adaptive contour-following springs and contour-following rods to achieve adaptive contour-following of undulating hilly terrain and adjust the operating height of the device. The attitude adjustment mechanism drives the attitude adjustment swing shaft to deflect through a built-in angle drive motor, precisely controlling the straw throwing path. The passive contour-following elastic covering device uses a passive contour-following buffer spring and telescopic rod structure to drive the covering shovel to adaptively conform to the ground surface, adjust the covering amount, and prevent straw from slipping back into the seed strip during sloping operations. During operation, the device cleans the seedbed on the straw-covered no-till surface through the straw-cleaning mechanism, while the covering soil device simultaneously covers and fixes the straw with topsoil. The entire process of straw cleaning, terrain shaping, posture adjustment, and anti-slip covering is completed in one operation, providing a stable and qualified seedbed environment for no-till sowing.

This invention discloses a mountain topsoil spraying and erosion control system, including a drainage device, a spray anchor support device, and a water collection and diversion device. The drainage device includes a top water interception section and a bottom drainage section. The spray anchor support device includes an anchoring component and a grass planting stick. The anchoring component has a first fixed position and a second fixed position distributed sequentially in the vertical direction. The grass planting stick is located at the second fixed position, and the upper side of the grass planting stick is used to form a sprayed substrate layer. The water collection and diversion device is located at the first fixed position of the anchoring component. The water collection and diversion device has a first port corresponding to the top water interception section and a second port corresponding to the bottom drainage section, used to collect water flowing out from the top water interception section and water on the mountain slope, and guide the water to the bottom drainage section for discharge. In this way, the soil on the mountain slope is stabilized, the erosion of the sprayed substrate that has not formed a protective effect on the mountain vegetation by rainfall is reduced, and the efficiency and effect of mountain vegetation restoration are improved.

This invention relates to the field of agricultural data analysis, and particularly to a method for expanding and regulating the topsoil volume by integrating an organic material carbon and nitrogen conversion model. The method includes: acquiring raw time-series data of carbon and nitrogen mineralization rates; obtaining a phase hysteresis correction factor by coupling and evaluating the temporal differences and morphological overlap characteristics of the mineralization energy centroid; obtaining a transient excitation smoothing factor by normalizing and attenuating the local oscillation energy functional of the sequence with the average oscillation energy of the entire sample; obtaining a corrected distance by performing multiplicative optimization of the Euclidean distance and performing iterative clustering calculations; and obtaining a topsoil volume expansion and regulation scheme by matching carbon and nitrogen conversion model parameters and inversely deriving the regulation strategy from the clustering results. This addresses the problems of distortion in the division of regulation type regions and decreased model matching accuracy caused by inoculation hysteresis translation and high-frequency oscillations of excitation effects in existing Euclidean distance-based mineralization rate time-series clustering.

This invention discloses a method for creating a peony flower sea landscape with soil stabilization and slope protection functions. The steps include: slope preparation; improving the slope soil with compound nutrient soil and digging planting holes; mixing peonies with different root types on the slope; after planting the peonies, evenly sowing different grass seeds on the peony slope; and cultivating and maintaining the vegetation. Advantages include: mixed planting according to peony root type and slope, combined with retaining walls and soil improvement, increases the survival rate by 8.5%; three-dimensional intercropping of shrubs and grasses for soil stabilization and slope protection achieves 99% green coverage and a topsoil loss rate of 0.2% within two years, combining ecological restoration and flower sea landscape, with low cost and easy promotion.

The present application relates to oil crop planting technical field, specifically to a kind of rape whole seedling cultivation method, comprising the following steps: carrying out seed screening and sunning treatment, selected planting plot and complete deep ploughing and base fertilizer application;Mix the treated rape seed and millet seed according to fixed proportion, use film mulching hole sowing cylinder to carry out single hole sowing, after sowing, use fine soil to cover and compact seed hole;Monitoring field emergence, seedling grows to two to three leaf stage, spray triclopyr herbicide to remove millet seedling, according to soil moisture and seedling condition, carry out water and fertilizer management;Using the way of combining physical and chemical, prevent and cure disease and insect pest during the growth period of rape.The present application breaks the soil pressure and soil hardening obstacle for rape seed by the strong topsoil capacity of millet seed germination, matches film mulching soil conservation, makes the emergence rate of rape increase from less than 70% to more than 90%, and the topsoil failure rate decreases to less than 5%.

This invention relates to the field of cultivation technology for specific crops or plants not mentioned above, and discloses a method for creating vegetation on alluvial and rockfall riverbanks. The method involves identifying weak erosion zones less affected by unstable landslides and alluvial deposits left by flash floods through exploration. Perennial vines are then planted at these locations to cover the remaining riverbank area, preventing damage to the vegetation from alluvial deposits and fallen rocks. Microenvironmental wells are dug within the weak erosion zones, and the perennial vines are planted inside to block flash floods from damaging the vegetation and surrounding soil. The soil within the wells is rotated, with topsoil containing a large amount of sand and gravel, being infertile and unable to retain water, being turned to the bottom of the well, thus no longer hindering vegetation growth and facilitating groundwater infiltration. The deeper soil, free of sand and gravel, relatively fertile, and with better water retention, is turned to the top layer, allowing the vegetation within the well to grow better. The combination of these methods overcomes the damage and stress to vegetation, enabling the creation of vegetation on riverbanks where normal growth is impossible.

The invention discloses a nitrogen and phosphorus adsorbent and a preparation method and application thereof, and belongs to the technical field of environmental protection and resource utilization. The preparation method comprises the following steps: uniformly mixing coal gangue powder with NaOH, calcining, adding water, carrying out hydrothermal reaction with NaAlO2, washing, centrifuging, and drying to obtain CGMS; the preparation method comprises the following steps: preparing a sodium alginate solution, adding CGMS into water to obtain a CGMS solution, adding a sodium alginate solution into the CGMS solution, then adding a NiCl2 solution, and finally adding a glutaraldehyde solution to obtain a mixed solution, stirring, centrifuging, washing and drying to obtain SA-CGMS; and finally, mixing the sludge with SA-CGMS, drying, carrying out ball milling on the dried material, screening, granulating into balls, drying, and finally calcining to obtain the nitrogen and phosphorus adsorbent. The nitrogen and phosphorus adsorbent prepared by the invention has the nitrogen and phosphorus resistance and control of 90% or more, and can significantly reduce the leaching loss of nitrogen and phosphorus. And after being continuously used for 6-8 years, the nitrogen-phosphorus adsorbent is applied to the permeable control layer, so that the soil fertility of the barren farmland in the karst region can be increased, carbon sequestration can be realized, and heavy metals and antibiotic pollutants in a plough layer can be adsorbed.

A method and structure for ecological slope construction based on netting and topsoil spraying includes: cleaning the netting and topsoil spraying slope surface; laying a bottom layer of moisture-retaining blankets, with the bottom layer blankets overlapping at a set distance, and fixing the bottom layer of moisture-retaining blankets to the bottom layer of topsoil and netting with fasteners; laying a middle layer of moisture-retaining blankets and mixing in fertilizer; setting an upper layer of moisture-retaining blankets; determining planting points on the upper layer of moisture-retaining blankets, cutting incisions at the planting points, and placing the seedlings to be planted into the incisions; and maintaining the slope surface. In the above method and structure, the bottom layer of moisture-retaining blankets adheres closely to the original slope surface, playing a role in buffering, moisture retention, and preventing the germination of weeds in the lower layer; the middle layer of moisture-retaining blankets retains water and fertilizer; the upper layer of moisture-retaining blankets is in contact with the seedling root ball and exposed to the atmosphere, inhibiting upper layer weeds and reducing water evaporation. Through the incisions to accommodate the root ball, the seedling roots grow rapidly in the moist, fertile, and weed-free environment created by the moisture-retaining blankets, penetrating the fiber gaps of the bottom layer of moisture-retaining blankets and sinking into the deep layer of the original topsoil, achieving stable anchoring.

This invention relates to the field of agricultural technology, specifically to a water-saving and salt-reducing synergistic regulation method for intercropping salt-tolerant maize with halophytes, comprising the following steps: Step 1: Saline-alkali land classification and pretreatment; Step 2: Construction of a gradient intercropping system; Step 3: Dynamic irrigation and drainage and water and fertilizer regulation; Step 4: Rhizosphere improvement; The saline-alkali land classification of this invention is based on the total salt content and pH value of the topsoil layer (0-20cm) (moderate 0.3wt%-0.6wt%, severe >0.6wt%), rather than the original 0-60cm depth, which is closer to the actual salt damage range of the topsoil layer and provides a precise basis for the implementation of subsequent measures; The intercropping system enhances the ecological diversity of farmland and avoids the ecological monoculture caused by monoculture; The technical solution expands the arable land resources of moderate and severe saline-alkali land, while conforming to the direction of green governance, and providing a replicable guarantee solution for saline-alkali areas.

The invention discloses a compound matrix for ecological restoration of a side slope as well as a preparation method and application of the compound matrix, and belongs to the technical field of geotechnical engineering and ecological restoration. The composite substrate for ecological restoration of the side slope is prepared from the following raw materials in parts by mass: 20 to 40 parts of mining area coal gangue crushed materials, 15 to 30 parts of fly ash, 20 to 35 parts of soil, 8 to 15 parts of organic fertilizer, 0.3 to 1.0 part of water-retaining agent and 1.5 to 4 parts of binder. The high-performance slope ecological restoration material is constructed by taking coal gangue, fly ash and soil in a mining area as main frameworks and compounding an organic fertilizer, a water-retaining agent and an organic-inorganic hybrid gel binder. The method has the core advantages that high-valued resource utilization of industrial solid waste is achieved, the cost of matrix raw materials and dependence on high-quality cultivation soil are remarkably reduced, and the method has both environmental and economic benefits.

The invention belongs to the technical field of land improvement, and particularly relates to an agricultural land improvement device which comprises a frame, and walking wheels are rotationally arranged at four corners of the frame; the topsoil crushing and transferring mechanism is arranged in the frame, the soil inlet end of the topsoil crushing and transferring mechanism is located below the front end of the frame, the soil outlet end of the topsoil crushing and transferring mechanism is located below the rear end of the frame, and the topsoil crushing and transferring mechanism is used for crushing and transferring topsoil of the land needing to be improved and repaired; the deep soil crushing and transferring mechanism is arranged in the frame, the soil inlet end of the deep soil crushing and transferring mechanism is located below the rear portion of the soil inlet end of the surface soil crushing and transferring mechanism, and the soil outlet end of the deep soil crushing and transferring mechanism is located above the rear portion of the soil outlet end of the surface soil crushing and transferring mechanism. The deep soil crushing and transferring mechanism is used for crushing and transferring the deep soil of the land needing to be improved and repaired. The agricultural land improvement effect can be improved.

The invention relates to the technical field of soil detection, in particular to a sampling device for soil detection and a using method thereof.The sampling device comprises a support assembly, a removing assembly, a sampling assembly and a shell, and an opening is formed in the bottom of the shell; the clearing assembly comprises a center shaft, a clearing toothed plate and a toothed plate mounting frame, the center shaft is vertically and rotatably arranged in the shell, and the toothed plate mounting frame is fixed to the lower end of the center shaft and arranged in the opening in a penetrating mode; the sampling assembly comprises a plurality of sampling cutting rings, the toothed plate mounting frame is provided with a plurality of through holes penetrating up and down, the sampling cutting rings are mounted in the through holes in a one-to-one correspondence manner, a hammering assembly is arranged in the shell, and the sampling cutting rings move downwards when the hammering assembly hammers; and a main spring is arranged in the shell. The cleaning toothed plate is gradually inserted into the soil by the toothed plate mounting frame under the elastic force of the main spring, so that the topsoil can be stably cleaned and sampled.

The present application belongs to the field of ecological restoration technology, and particularly relates to a kind of composite substrate soil and dry-hot valley slope restoration method. Wherein, the composite substrate soil includes 50%-70% of engineering slag, 10% of topsoil, 7.5%-35% of livestock and poultry manure, 7.5%-35% of microbial fertilizer, 4.5%-5% of biochar, 5% of crop straw and 0.3%-0.5% of polyvinylamide; in the composite substrate soil, the crop straw has abundant fiber and higher porosity, which can effectively increase the porosity of the composite substrate soil, reduce the bulk density of the composite substrate soil, make the composite substrate soil more loose and breathable, ensure the water permeability and water retention capacity of the composite substrate soil, and through the synergistic effect of microbial fertilizer, livestock and poultry manure, biochar and polyvinylamide, the mechanical composition of the composite substrate soil is optimized, the physicochemical properties of the engineering slag are comprehensively improved, so that the composite substrate soil can meet and be suitable for plant growth.

This invention relates to the field of soil permeability testing, specifically a method for testing surface soil moisture permeability in degraded forest land. The invention involves selecting several test points in the degraded forest land area to be measured, acquiring surface images of each test point before and after the installation of a dual-structure infiltration ring, identifying man-made crack anomalies and their predicted directions, and reselecting test points for infiltration ring installation based on the predicted crack directions. At intervals, negative pressure points are selected among all test points and negative pressure is applied. An initial infiltration measurement is performed at each test point using a Marshall bottle. A second infiltration measurement is performed after removing the topsoil at each test point. The steady-state infiltration rate obtained from the two infiltration measurements is combined to calculate the crust contribution rate. The preferential flow contribution rate is analyzed based on the second infiltration measurement results at negative and non-negative pressure points. Finally, the causes of forest land degradation are assessed by combining the crust contribution rate and the second steady-state infiltration rate at the negative pressure points, providing a scientific basis for restoration decisions.

This invention provides a method and application for the ecological restoration of rock mine slopes in ecologically fragile high-altitude areas, specifically relating to the field of ecological environment restoration technology. The ecological restoration method includes: leveling the rock mine slope in an ecologically fragile high-altitude area, then restoring the slope's topography by covering it with topsoil; constructing a masonry diamond-shaped grid structure for protection on the rock mine slope, planting native shrubs and grasses within the grid; installing an integrated water and fertilizer drip irrigation system on the rock mine slope; and finally, applying sprayed concrete or constructing slope supports to prevent soil erosion on the slope surface; wherein the altitude of the high-altitude area is >4000m. This ecological restoration method provides strong technical support for the ecological restoration of rock mine slopes in ecologically fragile high-altitude areas, and also provides important guarantees and references for ecological restoration work after mining in high-altitude regions.

This application discloses a method, apparatus, equipment, medium, and product for identifying and retroactively recognizing historical outflow of cultivated land, belonging to the field of land and resources survey and monitoring technology. The method includes: constructing a candidate base map of historical outflow of cultivated land based on multi-time-series land change survey vector data; generating a constraint layer based on multiple spatial constraint data; performing spatial intersection elimination based on the candidate base map of historical outflow of cultivated land and the constraint layer to obtain a candidate set after avoidance; judging the integrity of the topsoil based on the candidate set after avoidance and soil survey data to obtain a set of intact topsoil patches; identifying crop types in the set of intact topsoil patches based on multispectral remote sensing data to obtain a crop type identification result set; performing concentrated contiguous analysis on the patches in the crop type identification result set to obtain a contiguous optimization result set; and performing post-processing on the contiguous optimization result set to generate a cultivated land retroactive vector layer. The embodiments of this application can effectively improve the efficiency and accuracy of identifying and retroactively recognizing historical outflow of cultivated land.

A surface soil stripping and loosening machine for Fritillaria cirrhosa, relating to the field of agricultural machinery technology, includes a surface soil stripping device, a transmission system, and a loosening device. The surface soil stripping device includes a front frame, and the loosening device includes a loosening device frame. The surface soil stripping device, transmission system, and loosening device are all mounted on the frame and interconnected. The loosening device includes wide-bladed rotary tillers, a rotary tillage drive shaft, a rotary tiller blade disc, a hydraulic cylinder, a loosening device frame, a loosening hook, and a loosening hook connecting beam. The loosening device frame is equipped with a loosening hook, the bottom of which is connected via a loosening hook bottom connector. A hydraulic cylinder is located at the top center of the loosening device frame. The rotary tillage drive shaft is mounted horizontally below the loosening device frame, and a rotary tiller blade disc is mounted on the rotary tillage drive shaft, with wide-bladed rotary tillers on the rotary tiller blade disc. This surface soil stripping and loosening machine for Fritillaria cirrhosa significantly improves soil breaking efficiency and reduces damage to the Fritillaria cirrhosa.

This invention provides a comprehensive management method for coastal saline-alkali land, relating to the field of soil improvement technology. The method includes: soaking the topsoil of the coastal saline-alkali land in water to remove salt; tilling the topsoil after soaking; planting crops; and during the crop growth period, applying nitrogen fertilizer and compound conditioner based on real-time monitoring indicators of the topsoil, as well as irrigation; and applying green manure and incorporating it into the field after crop harvest. This invention solves the technical pain points of salt accumulation, organic matter deficiency, and extensive regulation in the improvement process of coastal saline-alkali land, achieving precise fertilization and irrigation, efficiently reducing salinity, and directionally improving soil fertility. It is suitable for large-scale improvement and agricultural utilization of similar saline-alkali land in coastal South China.

The invention discloses a seedling and bean collaborative cultivation method for preventing and controlling salt crust in severe soda saline-alkali soil, and relates to the technical field of agricultural planting. The seedling and bean collaborative cultivation method specifically comprises the following steps: S1, land improvement, S2, improvement agent application, S3, ridging and alkali inhibition layer construction, S4, sowing and cultivation, S5, drip irrigation under a film and salt pressing and salt leaching, and S6, straw returning to the field and field management. According to the straw and bean collaborative cultivation method for preventing and controlling salt crust in the severe soda saline-alkali soil, by introducing composite conditioners such as straw charcoal, organic fertilizer, an acid conditioner and a water-retaining agent, the structure, fertility and water-retaining capacity of the saline-alkali soil are remarkably improved; the soil jacking capacity of gramineous crops is utilized, salt crust is broken through firstly, crack channels are formed, leguminous crops such as soybeans are intercropped between gramineous strip rows, the leguminous crops smoothly emerge through cracks, and the emergence rate is increased by 70% or above; and through the alkali inhibition layer at the bottom of the ridge body and drip irrigation under the film, the salt rising is reduced, and the synchronization of salt pressing and salt discharging is realized.