54 results about "Soil organic matter" patented technology

This invention provides a method and system for tracing the source of soil organic matter pollution, relating to the field of data processing technology. The method includes: collecting soil and end-member samples from the site to be tested and simultaneously performing sampling and measurement on the soil and end-member samples to construct a three-dimensional feature vector of the samples and an end-member feature matrix; calculating the end-member discrimination index of the end-member feature matrix using the Euclidean distance algorithm, checking and correcting the end-member feature vectors in the end-member feature matrix to obtain the target end-member feature matrix; calculating a dynamic weight compensation factor based on the target end-member carbon-nitrogen mass ratio in the target end-member feature matrix; establishing an isotope mass balance equation based on the sample three-dimensional feature vector and the target end-member feature matrix, and embedding the dynamic weight compensation factor into the isotope mass balance equation to construct a weighted correction equation set; substituting the weighted correction equation set into a Bayesian linear mixture model to calculate the average contribution rate of each pollution source end-member to the accumulation of soil organic matter, thus completing the pollution source tracing.

The application discloses Paracoccus communis C4-4 and C5-3, the preservation number of which is CGMCC NO:31971 and the classification name of which is Paracoccus communis, and the preservation number of which is CGMCC NO:31972 and the classification name of which is Paracoccus communis. Researches show that C4-4 and C5-3 have strong ecological adaptability and good growth promotion ability, and can improve the internal environment of soil in combination with organic materials. A synthetic microbial population constructed by Paracoccus communis comprises C4-4 and C5-3. Tests prove that the synthetic microbial population comprising C4-4 and C5-3 has the advantages of the synthetic microbial population, the microbial population has high alkali production and growth promotion ability, has good ecological adaptability, the pH adaptation range is 4-8, the manganese stress tolerance can reach 5000 μmol / L, can significantly improve the pH of a culture medium, and has obvious alkalization effect. The synthetic microbial population is used as a microbial agent and is compounded with organic materials to prepare a soil conditioner capable of improving acid soil and promoting plant growth. The conditioner is applied to acid and lean soil, can significantly improve the soil pH, improve the content of soil organic matter, nitrogen, phosphorus and potassium, and promote root growth.

The application discloses application of an improved agent in improving physical structure of sand ginger black soil, and the improved agent adopts coal gangue alkali modified material. Before planting crops in the sand ginger black soil, the coal gangue alkali modified material is applied, and the land is directly rotary ploughed, and the alkali modified coal gangue can be brought into the deep layer during rotary ploughing, so that the pore structure of the sand ginger black soil is better improved. The coal gangue produced in the process of coal mining and washing is rich in organic matter and has a loose porous structure, but the specific surface area of the natural coal gangue is small, and the hardness is high. The alkali modification process can effectively loosen the structure of the coal gangue, reduce the strength of minerals such as quartz, increase the pore number and total pore volume of the coal gangue, and the coal gangue added into the sand ginger black soil can further enhance the water holding property and air permeability of the soil, improve the organic matter content of the soil, and improve the water and fertilizer retaining performance of the soil.

The utility model relates to a kind of green manure rolling device for promoting soil organic matter, especially in the technical field of soil rolling equipment.It includes moving box, slide bar, sliding block, aggregate box, turning blade, pivot, driving cylinder, fertilizer box, green manure discharging mechanism.The current rolling device does not have the function of adding other fertilizers, and the current rolling device cannot adjust the rolling height by actual plowing depth during rolling, causing inconvenience.

This invention relates to the field of microbiology and heavy metal immobilization technology, specifically to carbonate mineralizing bacteria, composite materials, and their application in the remediation of heavy metal-contaminated soil. The carbonate mineralizing bacteria is *Bacillus lamellaris* (…). Rummeliibacillus pycnus ANY-2, with accession number CGMCC No. 34595, is a composite material made by loading ANY-2 onto iron-modified biochar. The ANY-2 of this invention exhibits excellent cadmium and arsenic removal and passivation effects, and its ability to increase soil organic matter is significantly stronger than that of the existing ANY-1. The composite material of this invention, under the synergistic effect of iron-modified biochar and ANY-2, demonstrates superior remediation performance compared to treatments using ANY-2 and iron-modified biochar alone. This invention breaks through the bottleneck of traditional "emphasis on remediation and neglect of fertilization," providing a replicable and scalable new approach for the safe utilization and soil fertility restoration of Cd-As contaminated farmland.

This invention discloses a method for preparing an attapulgite-based acidic soil remediation agent. The method includes: (1) mixing urea solution and biochar and reacting them hydrothermally to obtain urea-modified biochar; (2) mixing attapulgite, calcium silicate, and urea-modified biochar to obtain the attapulgite-based acidic soil remediation agent. Compared with the prior art, applying the remediation agent of this invention to acidic soil in a single application can not only improve various physicochemical indicators such as soil pH, electrical conductivity, water holding capacity, alkaline nitrogen, available phosphorus, available potassium, soil organic matter, and cation exchange capacity, but also enhance soil enzyme activity and promote crop growth and development.

The application relates to the technical field of soil analysis, in particular to a cane field soil organic matter influencing factor analysis method and system based on multi-source data, which comprises the following steps: acquiring the spatial distribution of all sampling points, using different colors to distinguish different years and different cane fields; calculating a spatial autocorrelation index to determine whether the sampling point distribution is aggregated, discrete or random; dividing the cane fields and analyzing the soil nutrients of each cane field for comparative analysis; constructing a random forest regression model; extracting feature data of each cane field and using SHAP values for interpretation; drawing a single feature data of each cane field and a corresponding SHAP value relationship scatter diagram to obtain a SHAP dependence diagram; using a PLS-SEM algorithm to estimate the random forest model to obtain direct effects or indirect effects; and verifying the importance ranking of SHAP by comparing the total effects of different driving factors. The application realizes closed-loop analysis from spatial pattern identification to machine interpretation.

The application discloses a kind of anti-saline-alkali microbial inoculants and preparation method thereof, belong to the field of microbial technology.The microbial inoculants is made of composite microbial inoculants 100-150 parts, fish bone hydrolysate 10-30 parts, nano silicon sol 1-3 parts.The composite microbial inoculants is made of Trichoderma reesei, Pseudomonas plecoglossicida, Acinetobacter baumannii.The anti-saline-alkali microbial inoculants has remarkable effect on saline-alkali soil improvement, greatly reduces soil acidity, salt content and bulk density, and the yield of saline-alkali soil wheat planting is obviously improved.The soil organic matter content and soil enzyme activity are significantly improved after use, the soil quality and rhizosphere microecological environment are improved, and the enzyme activity in wheat is improved, the stress resistance is improved, the yield reduction caused by saline-alkali stress is reduced, and the use of microbial inoculants can also reduce the amount of chemical fertilizer and pesticide, reduce production cost, and further improve the economic benefit of wheat planting.

The present application relates to the field of agricultural ecological environment management and carbon sink monitoring technology, and more particularly to a tea tree lossless tea garden carbon fixation and sink increase method, comprising: pyrolyzing agricultural waste to obtain biochar and making the biochar into a specific standard biochar-based fertilizer; determining tea garden soil organic matter, cation exchange capacity and soil bulk density, calculating soil quality comprehensive coefficient by using improved Nemerow comprehensive index method and dividing soil quality grades according to the soil quality comprehensive coefficient; applying the biochar-based fertilizer in a differentiated application amount according to the soil quality grades; determining tea tree aboveground biomass after fertilization and calculating tea tree carbon storage according to a corresponding carbon storage model selected according to the age of the tea tree; simultaneously determining soil parameters to calculate tea garden soil carbon storage; and finally taking the tea tree carbon storage and the soil carbon storage as the total carbon sink of the tea garden. The present application realizes systematic, accurate and lossless monitoring of tea garden carbon fixation and sink increase technology.

The application relates to a soil organic matter prediction method based on multi-feature fusion, and belongs to the technical field of soil organic matter prediction. The method comprises the following steps: pre-processing acquired soil data, obtaining spectral features, performing time domain reconstruction on frequency domain signals, and obtaining time domain data; obtaining an optimal delay time and an optimal embedding dimension based on the time domain data, and performing phase space reconstruction to obtain a phase space trajectory; extracting chaotic features based on the phase space trajectory, and taking the extracted chaotic features, the optimal delay time and the optimal embedding dimension as final chaotic features; obtaining a vegetation index based on the spectral features and taking the vegetation index as an index feature; and inputting the spectral features, the final chaotic features and the index feature into a constructed double-flow low-rank interaction network model to obtain a soil organic matter prediction result. The application aims to solve the technical problem that the spectral features extracted by the prior art cannot comprehensively represent the complex nonlinear characteristics of soil, thereby leading to low prediction accuracy.

This invention discloses a highly efficient strain of *Bacillus tekirii* BB that degrades PLA microplastics and its applications. This strain was deposited on February 2, 2026, at the China General Microbiological Culture Collection Center (CGMCC), Institute of Microbiology, Chinese Academy of Sciences, Beijing, with accession number CGMCC NO. 37630. This strain can secrete multiple enzyme systems, including lipase, amylase, laccase, and catalase. In soil systems, this strain can effectively degrade PLA, increase soil lactic acid content and the activity of various soil enzymes, and improve soil organic matter, nitrogen, phosphorus, and potassium nutrient status. This strain can alleviate the growth stress of PLA pollution on plants, increasing the plant height, biomass, and antioxidant enzyme activity of crops such as buckwheat. This strain combines PLA degradation, soil remediation, and plant growth promotion functions, making it suitable for in-situ bioremediation of PLA microplastic pollution in farmland and possessing significant environmental and agricultural application value.

The application discloses a coastal saline-alkali land garden plant adaptability intelligent configuration design method and system, the data acquisition module is used for collecting soil conductivity, soil pH, soil moisture content, soil organic matter content, microtopography elevation data and groundwater depth data; the cloud platform processing module is used for constructing a plant ecological niche parameter library, and calculating a plant adaptability index based on the soil conductivity, the soil pH, the soil moisture content and the soil organic matter content; the intelligent configuration module is used for taking a landscape diversity index, an ecological stability index and an economic cost index as optimization targets, and generating a plant configuration scheme by using a non-dominated sorting genetic algorithm; and the user interaction module is used for displaying the plant configuration scheme and a three-dimensional visual model.

This invention discloses a soil aggregate remediation fertilizer based on microbial-induced mineralization and in-situ crosslinking of EPS, and its preparation method, belonging to the field of soil remediation fertilizers. This invention aims to solve the technical problems of existing technologies for remediating degraded black soil, such as limited functionality, poor environmental adaptability, and difficulty in simultaneously improving soil structural stability and fertility. The fertilizer consists of a specific ratio of corn cob powder, beet pulp, distiller's grains, pine needle powder, straw, diatomaceous earth, bentonite, humic acid, compound functional microbial agents, and trace elements. The preparation method involves CO₂-protected modified straw, activated mineral carriers, compound mineralization promoting components, and synergistic fermentation using an EPS in-situ crosslinking inducer and compound functional microbial agents. This fertilizer is mainly used to repair the aggregate structure of degraded black soil, increase soil organic matter content, improve porosity and erosion resistance, and promote crop growth.

This invention discloses a management method for improving the carbon sequestration capacity of Masson pine forests, belonging to the field of Masson pine forest management technology. The method includes steps such as land preparation and clearing, density optimization, mixed planting, formation of multi-layered forests, and post-management. Through the above method, pure Masson pine forests are transformed and managed into multi-layered mixed forests. During this process, fermented fertilizer prepared from pine needle litter is applied to increase the organic matter content of the forest soil, promote good tree growth, increase biomass, and optimize forest stand structure. This, in turn, enhances the carbon sequestration capacity of the tree layer, understory vegetation layer, and soil layer, comprehensively improving the carbon sink capacity of Masson pine forests, which is of great significance for improving the ecological environment.

The present application relates to a kind of red soil organic matter inversion method based on unmanned aerial vehicle hyperspectral image and spectral index, belong to agricultural soil organic matter content measurement technical field.The method includes: obtaining unmanned aerial vehicle hyperspectral image and carrying out initial pretreatment and secondary pretreatment;Obtain the spectral index of the unmanned aerial vehicle hyperspectral image after secondary pretreatment;Wherein, spectral index includes two-band spectral index and three-band spectral index;The pearson correlation coefficient between each spectral index and the red soil organic matter content in the unmanned aerial vehicle hyperspectral image after secondary pretreatment is obtained, and the spectral index with high correlation is selected as spectral characteristic variable;Red soil organic matter inversion model is constructed and parameter optimization is carried out, and spectral characteristic variable is input into the optimized red soil organic matter inversion model, to obtain red soil organic matter inversion result.The present application aims to solve the technical problems of insufficient utilization of spectral information and low spatial inversion accuracy of soil organic matter in the prior art.

The present application relates to the technical field of agricultural planting, in particular to a coconut date coffee forage grass compound interplanting cultivation method, during 5-8 years before canopy formation after coconut date is planted in single planting with a plant row spacing of 6-10 m, a three-layer stereoscopic ecological niche complementary system is constructed in the row: the upper layer coconut date provides 30%-50% shading; the middle layer is a small-grain coffee planted in a strip outside the trunk at a distance of greater than or equal to 2 m; the lower layer is a strip-sowing creeping tropical leguminous forage grass, which reduces the ground surface temperature from greater than or equal to 55 DEG C to less than or equal to 35 DEG C, and is combined with three-track layered irrigation and mowing residual stubble ground surface coverage management, so that the irrigation water use efficiency is increased from less than 30% to greater than or equal to 65%, and the soil organic matter is accumulated from less than 0.5% to greater than or equal to 1.2%.

The application provides a closed-loop optimization method for soil organic matter carbon cycle regulation and pollutant synergistic removal, and belongs to the technical field of environmental remediation based on machine learning; first, time series data of soil physicochemical properties, soil pollutant concentration, environmental meteorology and human control parameters of a target area are acquired to construct a data set; second, a soil carbon cycle-pollutant migration coupling prediction model is designed to obtain predicted values of soil organic matter content and pollutant concentration at a future time step; finally, a set of decision variables is established, a double-objective function and a hard constraint condition are set, the trained migration coupling prediction model is taken as an agent model to input a non-dominated sorting genetic algorithm for global optimization, and a Pareto front solution set is extracted; finally, an optimal control parameter combination is obtained through an approximate ideal solution sorting method; through the designed multi-objective closed-loop optimization strategy and the prediction model, high-precision joint prediction of soil organic matter dynamics and pollutant migration evolution is realized.

This invention relates to the field of soil remediation technology, specifically disclosing a method for promoting iron cycling and degrading soil organic matter based on the electron shuttle effect of natural humic acid. The humic acid extraction method includes mixing natural soil material with an alkaline solution, stirring, and centrifuging to obtain a supernatant; acidifying the supernatant to obtain a humic acid precipitate; redissolving the precipitate in KOH solution, followed by acidification and centrifugation for purification; and finally freeze-drying and grinding to obtain humic acid powder. The application method involves premixing contaminated soil with a solution prepared from the humic acid powder, a ferrous salt solution, and deionized water, then adding a persulfate oxidant to react and degrade organic pollutants in the soil. This invention utilizes naturally extracted humic acid, effectively overcoming the limitations of slow iron cycling and high oxidant consumption in traditional iron-based oxidation systems, resulting in high remediation efficiency and environmental friendliness.

The application discloses a soil organic matter inversion method and system based on unmanned aerial vehicle multispectrum, relates to the technical field of soil spectrum detection, and comprises the following steps: S1, collecting multispectrum remote sensing data and soil characteristic data, and performing pretreatment on the collected data; S2, constructing a wave band reflectivity vector and a spectral form offset value, and generating a spectral structure matrix; S3, constructing a spectral feature matrix, performing correlation screening on the spectral feature matrix to obtain an effective feature matrix, performing resampling screening processing on the effective feature matrix, and constructing an inversion input feature matrix; and S4, outputting a soil organic matter inversion sequence based on a random forest regression model, performing spatial interpolation and grid construction on the soil organic matter inversion sequence, and generating a soil organic matter inversion image. The application solves the problems that in the existing unmanned aerial vehicle multispectrum soil organic matter inversion, feature redundancy and remote sensing reflectivity disturbance are superimposed, the feature screening result is unstable, and the model cross-plot generalization consistency is insufficient.

The application provides a forest small and micro water source group community construction method and system based on an ecological chain, relates to the technical field of ecological engineering, and comprises the following steps: selecting a natural catchment area according to forest topographic features, constructing a water area unit with a layered anti-seepage structure, arranging an anti-seepage layer at the bottom to realize water collection, and arranging a water-permeable transition layer at the edge to form a water-land gradient; dividing the water area unit into multiple ecological function areas according to the water depth gradient and spatial position and introducing matching species; dynamically adjusting the species ratio and spatial layout of adjacent function areas based on the functional correlation of material circulation and energy transmission by monitoring the population density and water quality indexes, forming a self-sustaining ecological chain; arranging a microorganism cultivation layer around the periphery, calculating the inoculation proportion of saprophytic microorganisms, calculating the soil organic matter conversion amount according to the population density and decomposition rate, and establishing the dynamic balance of the water supply amount of the water area, the metabolic activity of microorganisms and the physical and chemical properties of forest soil. The water source ecological system constructed by the application has high stability, can effectively improve the water holding capacity of forest soil and reduce the risk of fire.

The application provides a sunflower planting method in moderate and severe soda saline-alkali land, and belongs to the technical field of saline-alkali land improvement and crop planting. The sunflower planting method in moderate and severe soda saline-alkali land provided by the application comprises the following steps: uniformly mixing desulfurized gypsum, biochar and lignite, and throwing and spreading the mixture to the ground surface to uniformly mix the mixture with soil; ditching and ridging, laying drip irrigation belts and black degradable mulching films in the ditch and the ridge; after mulching, washing salt through drip irrigation, and applying urea phosphate through drip irrigation; and after washing salt, planting sunflowers through holes in the mulching film. The planting method reduces salt ion toxicity in the root zone of sunflowers, increases the content of soil organic matter, improves the emergence rate of sunflowers, speeds up the growth speed, and achieves the purpose of increasing yield and economic benefits.

This invention provides a year-round carbon sequestration and efficiency-enhancing planting system and method for winter wheat and summer maize based on coordinated operations during irrigation windows, suitable for farmland with poor water and fertilizer retention capacity under conventional irrigation conditions. The planting system uses irrigation completion events as trigger signals for field management, enabling coordinated implementation of fertilization, pesticide application, and straw decomposition agent spraying within a defined time window after irrigation. The planting method implemented using this device improves fertilizer utilization efficiency and promotes the rapid bioconversion of straw into soil organic matter by conducting coordinated field management during the critical window period after irrigation, achieving year-round high and stable yields of winter wheat and summer maize while enhancing farmland carbon sequestration capacity. This method achieves year-round high and stable yields of winter wheat and summer maize through a closed-loop system of "deep tillage to lay the foundation—coordinated and precise input during the window period—monitoring and feedback for dynamic optimization," while also promoting enhanced farmland carbon sequestration capacity and greenhouse gas emission reduction.

The utility model discloses a configuration soil device of soil organic matter, including configuration mechanism, the upper portion of configuration mechanism is equipped with two feed shells, the upper surface of two feed shells all is fixedly connected with the crushing shell, the back of two crushing shells all is installed with rotating motor, two crushing shell's inner wall all are fixedly embedded with two groups of first bearing, and the inner ring of four groups of first bearing is commonly fixedly connected with two rotating rods. The device is driven by the rotating motor set to rotate multiple rotating rods, can make multiple crushing knives high -speed rotation, cooperate with configuration mechanism simultaneously, and then can carry out crushing pretreatment and configuration mixing to the soil and organic matter of entering, avoid the effect of subsequent mixing, utilize the setting of water supply pipe, electromagnetic flowmeter and electric valve, thereby can real -time monitoring water flow and feedback data, adjust the water supply simultaneously according to the preset program accurately, avoid the problem of water shortage or too much caused by artificial water adding.

This invention discloses a soil re-acidification control and regulation material for grape cultivation, its preparation method, and its application, belonging to the field of soil remediation technology. It comprises the following raw materials in parts by weight: 20-35 parts of rapid neutralizing component, 30-45 parts of slow-release fertilizing component, 15-25 parts of activating and enhancing component, and 5-15 parts of microecological regulation component; the slow-release fertilizing component comprises the following raw materials in parts by weight: 10-15 parts of 10-30 mesh calcined bone meal, 15-20 parts of silkworm excrement fermentation product, and 5-10 parts of well-rotted organic fertilizer; the activating and enhancing component comprises the following raw materials in parts by weight: 8-10 parts of mineral-derived potassium humate, and 7-15 parts of eggshell powder treated with carbonization and steam. This invention can significantly increase soil organic matter, available phosphorus, available potassium, and beneficial microbial content, improve soil buffering capacity, strain activity retention rate and colonization rate, prolong pH stability period, and significantly reduce soil bulk density, aluminum ion content, and soil-borne disease incidence.

The application relates to the technical field of soil organic matter determination, and particularly discloses a soil organic matter rapid determination device, which comprises a pretreatment tank and a crushing part, the crushing part is arranged in the pretreatment tank, a converging hopper is fixedly arranged below the pretreatment tank, a connecting pipe frame is communicated below the converging hopper, a first cavity and a second cavity are arranged in the connecting pipe frame; a valve is arranged above the first cavity, a weighing sensor is arranged at the bottom of the first cavity, an electric cylinder is fixedly arranged outside the first cavity, an output end of the electric cylinder is provided with a push plate, and the push plate is connected with a partition plate through a connecting rod, so that the collected soil can be effectively pretreated, the soil sample and the detection reagent can be quantitatively put, and the rapid determination operation of the soil organic matter is realized.

The application discloses a multifunctional Bacillus mobilis ASH9-3 and application thereof, and belongs to the technical field of microorganisms. The Bacillus mobilis ASH9-3 is preserved in the China General Microbiological Culture Collection Center, and the preservation number is CGMCC No. 32327. The strain has the functions of antagonizing four soil-borne diseases such as tomato early blight, producing protease, producing indole acetic acid (IAA), decomposing inorganic phosphorus and fixing iron ions. The fermentation liquor of the strain is applied to soil, so that the occurrence rate of soil-borne diseases can be significantly reduced, the content of soil organic matter and available nutrients can be increased, and the yield of peppers can be increased by 32.4%. The application fills the blank of multifunctional microbial agents in the prior art, and provides an efficient solution for soil-borne disease prevention and control and sustainable management of soil.

This invention provides a method and system for early warning of non-point source pollution release risks in the drawdown zone of the Three Gorges Reservoir area, relating to the field of non-point source pollution monitoring and early warning technology. The method includes: acquiring and preprocessing multi-temporal multispectral image data of the drawdown zone to extract vegetation stress characteristic indices and soil spectral characteristics; constructing a synergistic inversion model of vegetation stress indices and soil organic matter content to obtain the spatial distribution of soil organic matter content; establishing a soil organic matter accumulation-release coupled model by combining water level scheduling plans and topographic data to simulate the release flux and its spatiotemporal distribution under different water storage scenarios; constructing a non-point source pollution release risk index and classifying early warning levels, and outputting the risk warning results. This invention achieves synergistic monitoring of vegetation stress status and soil organic matter content in the drawdown zone, improves the spatiotemporal continuity of monitoring, and provides decision support for early warning and control of non-point source pollution release risks under water storage conditions.

The application discloses an ecological additive for rock slope repair and a preparation method thereof, and belongs to the technical field of ecological restoration; the application aims to solve the problems of plant growth inhibition and community degradation caused by cement strong alkalinity and structure hardening in the existing vegetation concrete technology; the ecological additive is prepared by compounding microbial inoculants, mineral components, soil conditioners, structure improvers and organic carriers in a specific ratio, and the preparation method comprises microbial propagation composting and mixing; the additive is mixed with planting soil, cement, rice husks and the like in a certain ratio to prepare vegetation concrete base materials for spray seeding; the additive can neutralize the alkalinity of cement, improve the group structure of the base materials, construct an active soil microbial ecological system, and provide nutrients, so that the seed germination rate, vegetation coverage, soil organic matter content and plant biomass are improved, and the raw material cost is low, the process is simple, and the additive is suitable for large-scale ecological restoration engineering of high and steep rock slopes.