125 results about "Soil carbon sequestration" patented technology

The invention discloses a complex microbial inoculant for coupling straw decomposition and soil carbon sequestration and a preparation method thereof, the complex microbial inoculant can rapidly promote degradation of lignocellulose of straw in soil by compounding bacillus subtilis, bacillus licheniformis, pseudomonas aeruginosa and the like, provides a basic material energy source for activity of soil microorganisms, and has the advantages of simple preparation process and low cost. Meanwhile, corresponding microorganisms achieve long-term storage of organic carbon through humus stabilization and mineral substance combined carbon (MAOC) stabilization, the storage efficiency of the organic carbon is remarkably improved through nano Fe3O4, and under the synergistic effect of all strains in the complex microbial inoculant, the carbon loss of straw returning can be effectively reduced, the carbon immobilization capacity of soil is improved, and the soil quality is improved. The organic carbon content in the soil is increased.

The invention provides a method for regulating and controlling fertilization based on a soil carbon sequestration rate and a land manure nutrient demand quantity, and relates to the technical field of agricultural fertilization methods. According to soil background carbon and a target nitrogen demand quantity, initial manure is calculated and applied according to a preset carbon-nitrogen ratio to start microbial activity; soil biophysical signals are monitored in real time and compared with the efficient carbon sequestration signals, when the matching degree is lower than a first threshold value, it is judged that a window period is entered, and if the matching degree is further lower than a second threshold value in the window period, second manure is immediately and dynamically calculated and dressed on the basis of the descending duration and the average value of the matching degree; when the matching degree is recovered or naturally increased to be higher than a third threshold value through a preset interval after topdressing, the window period is ended; based on the sum of all the topdressing amounts in the current period, the base fertilizer amount in the next period is corrected, and finally before the critical period of nitrogen demand, the third final fertilizer is accurately calculated and supplemented by measuring soil available nitrogen and deducting the expected nitrogen supply contribution of early-stage topdressing, so that sufficient nitrogen supply in the yield forming period is ensured.

The invention discloses an accounting method for carbon sequestration and emission reduction of soil. The accounting method comprises the following steps: S1, acquiring the average soil temperature # imgabs0 # average soil humidity # imgabs1 # average soil acidity and alkalinity # imgabs2 # average soil microbe number # imgabs3 # average soil microbe activity # imgabs4 # average environment temperature # imgabs5 # average environment humidity # imgabs6 # S2 of selected type soil from a moment t to a moment t + delta t; inputting the average soil temperature # imgabs7 #, the average soil humidity # imgabs8 #, the average soil acidity and alkalinity # imgabs9 #, the average soil microbe number # imgabs10 #, the average soil microbe activity # imgabs11 #, the average environment temperature # imgabs12 #, the average environment humidity # imgabs13 # and the soil type of the selected type of soil into a trained soil carbon sequestration emission reduction amount accounting model; and obtaining the carbon sequestration amount and greenhouse gas emission reduction amount of the selected type of soil. The method can quickly and accurately reflect the actual carbon sequestration and emission reduction conditions of the soil.

The invention discloses a method for synergistically improving soil carbon sequestration yield and efficiency by using a modified carbon material, and belongs to the technical field of agriculture. The method comprises the following steps: applying a modified carbon material and a soil conditioner into soil at the same time before cultivation; the preparation method of the modified carbon material comprises the following steps: pre-treating plant straws, gypsum and attapulgite tailings, uniformly mixing, drying, carrying out high-temperature pyrolysis carbonization, cooling and granulating, thereby obtaining the modified carbon material. Through one-time large-scale application of the modified carbon material and the soil conditioner and combination of precise application of the field nitrogen fertilizer, the effects of soil recarburization and quality improvement and crop yield and efficiency increase can be rapidly achieved, the synergistic effect of plough layer reservoir expansion and recarburization and capacity expansion is achieved, the soil structure and quality are remarkably improved, the productivity of the soil is improved, and the method is suitable for large-scale popularization and application. The negative influence of agricultural production on the ecological environment is further reduced, and the sustainable and healthy development of cultivated land is promoted.

The invention provides a carbon reduction effect evaluation method and system for a healthy agricultural product production process. According to the method, by tracking carbon migration paths of chemical fertilizer application, organic fertilizer degradation and soil respiration and combining matching analysis of chemical reaction chain data and an agricultural carbon emission database, a carbon retention area and methane generation and distribution characteristics in the production process are accurately identified. Modeling is carried out on the concentration of an intermediate product by applying a dynamic compensation engine, a soil pore optimization scheme and an organic fertilizer gradient feeding strategy are generated, and conversion of degradation residues to a stable carbon form is accelerated by regulating and controlling a micro-aerobic environment. Finally, a carbon cycle equilibrium map is constructed, greenhouse gas emission reduction monitoring and effect quantitative evaluation in the whole production period are achieved, and the soil carbon sequestration capacity is synchronously improved. According to the technical scheme provided by the invention, the agricultural production carbon cycle efficiency can be optimized.

The invention relates to the field of soil pollution treatment, and discloses a preparation method and application of a composite soil conditioner capable of improving the carbon sequestration effect, and the preparation method of the soil conditioner comprises the following steps: step A, preparing biochar; step B, preparing biochar microalgae particles; step C, preparation of oyster shell powder; d, coating particles to obtain an inner-layer soil conditioner and an outer-layer soil conditioner; the soil conditioner comprises an inner layer and an outer layer which are formed by adhesion of auxiliary materials, the inner layer comprises microalgae particles enriched and recycled by charcoal and can improve acid soil for a long time and provide organic matter and nitrogen and phosphorus nutrition, and the outer layer comprises roasted oyster shell powder and is rapid in soil acidity adjustment and capable of providing calcium salt. The composite soil conditioner has a synergistic effect of various materials, can be rapidly and slowly combined, can effectively improve acid soil, passivate soil heavy metals, provide organic matters, calcium, nitrogen, phosphorus and other nutritive salts for a relatively long time, improve the nutritional quality of vegetables and improve the carbon sequestration effect of soil, and has relatively good comprehensive benefits.

The invention discloses a soil carbon sequestration and emission reduction detection method based on soil respiration monitoring, and relates to the technical field of environment monitoring of soil carbon sequestration and emission reduction, and the method comprises the following steps: S1) arranging a limited number of soil respiration sensors in a target area; and S2) constructing a dynamic weight space mapping system: fusing a soil attribute map, a vegetation index sequence and a micro-topography elevation model obtained by remote sensing to generate a spatial heterogeneity weight base map. According to the soil carbon sequestration and emission reduction detection method based on soil respiration monitoring, through a dynamic weight space mapping system, the soil respiration space heterogeneity characterization problem is solved, and a space rule scale is provided for sparse sensor data; and the distortion risk of traditional uniform distribution and mechanical interpolation in a gradient sudden change area is eliminated. And a two-stage cooperative verification mechanism guarantees the evaluation reliability from two dimensions of a spatial mode and physical measurement.

The invention discloses a soil carbon sequestration microorganism isolated culture method under medium and high petroleum pollution stress and application, and the isolated culture method comprises the following steps: dispersing medium and high petroleum pollution soil surface soil in sterile water to obtain an original bacterial suspension containing carbon sequestration microorganisms, and carrying out gradient dilution on the original bacterial suspension; respectively coating on a carbon-source-free solid culture medium for culturing, purifying a bacterial colony obtained by culturing, and carrying out step-by-step amplification culture on a single bacterial colony obtained by purifying in a carbon-source-free liquid culture medium. The method has the beneficial effects that the invention provides the method for enriching and screening the indigenous indigenous efficient carbon sequestration strains with the carbon sequestration function from the medium-high petroleum pollution soil sample, and the four strains which can survive in the medium-high petroleum pollution stress environment and have good carbon dioxide sequestration capability are obtained through the method; the strains have potential pollution reduction and carbon sequestration synergistic capability, and a new technical path can be provided for green remediation and carbon sequestration of petroleum-contaminated soil.

The invention provides a saline-alkali soil multi-source carbon sequestration synergistic wheat yield-increasing and quality-improving fertilization method, and belongs to the technical field of crop cultivation. The fertilizing method comprises the following steps: applying a base fertilizer to wheat, wherein the base fertilizer comprises decomposed livestock and poultry manure and biochar; the base fertilizer contains 4-6t / hm < 2 > of organic carbon, and the organic carbon input ratio of the decomposed livestock and poultry manure to the biochar is (1-3): (1-3). The soil carbon sequestration capacity is improved through the synergistic effect of the multi-source carbon sequestration materials, the wheat yield and the grain zinc content are remarkably improved by combining precise nutrient regulation and control, meanwhile, the content of organic matter in saline-alkali soil is improved, and the method is suitable for wheat cultivation in saline-alkali soil with the pH being 8-9 and the salt content being smaller than or equal to 0.3%.

The invention relates to the technical field of carbon sink calculation, in particular to a crop carbon sink calculation model, a crop carbon credit calculation method and a storage medium. The crop carbon sink calculation model is a multi-task learning model based on a Transform architecture, and the multi-task learning model comprises a synchronous prediction carbon sink quantity module, a soil carbon sequestration potential module and a carbon emission factor module; the training data of the model comprises the carbon content of the crop physiology knowledge machine; the crop carbon sink calculation model is used for estimating the carbon sink amount of the target farmland area, multi-dimensional calculation of the carbon sink amount is achieved, the model generalization ability and the calculation precision are ensured, meanwhile, the manual dependency degree is reduced, and the calculation efficiency is further improved.

The invention provides a biochar soil carbon sequestration stability prediction method and device and a storage medium, and relates to the technical field of biochar soil carbon sequestration stability prediction.The method comprises the steps that a test soil physical and chemical index data set A and a control soil physical and chemical index data set B are obtained; establishing a nonlinear regression model M1 by using A and B; constructing a training sample set; training a preset initial machine learning model by using the training sample set to obtain a target prediction model M2; obtaining the accuracy eta2 of the prediction result of the M2; if eta2 is greater than QR, predicting the soil carbon sequestration stability of the to-be-predicted soil by using M2; determining a first weight alpha 1 corresponding to the M1 and a second weight alpha 2 corresponding to the M2 according to the eta 1 and the eta 2; determining the soil carbon sequestration stability of the to-be-predicted soil; according to the method, the accuracy of predicting the carbon sequestration stability of the biochar soil is improved.

The invention relates to the technical field of microbial carbon sequestration, in particular to novel paenibacillus GD-2 and application thereof in carbon sequestration. The preservation number of the paenibacillus GD-2 disclosed by the invention is CGMCC (China General Microbiological Culture Collection Center) No. 31835. The paenibacillus GD-2 provided by the invention is a potential new strain in paenibacillus separated from fixed inter-plate soil in a salinization photovoltaic field area, has dual carbon sequestration capability, can convert carbon dioxide in the atmosphere into carbonate minerals, can grow by converting the carbon dioxide into own biochar (organic carbon), and has the advantages of being simple in preparation process and low in cost. The strain can grow under the condition that only atmospheric carbon dioxide is contained, meanwhile, the growth rate of the strain can be remarkably improved through NaHCO3, an external carbon source and an electron donor are not needed, the carbon sequestration cost is reduced, and the strain has important significance for improving the soil carbon sequestration and sink increasing potential, promoting high-quality development of the photovoltaic industry in a salinization fragile area and relieving global climate warming.

The utility model provides an improved soil carbon sequestration device, which relates to the technical field of soil carbon sequestration devices and comprises a stirring and mixing tank, a tank cover is mounted at the top of the stirring and mixing tank, a feeding port is connected to the top of the tank cover, a rotating motor is mounted on the side face of the feeding port, one end of the rotating motor is connected with a rotating shaft, and the other end of the rotating shaft is connected with a rotating shaft. A plurality of crushing cutters are distributed on the outer side of the rotating shaft, a stirring motor is mounted at the top of the tank cover, a transmission shaft is connected to the bottom of the stirring motor, and a plurality of stirring sticks are distributed on the outer side of the transmission shaft. According to the device, the rotating shaft is electrically driven to rotate through the rotating motor, so that the rotating shaft drives the crushing cutters to rotate, the crushing cutters can scatter caked soil, soil pores can be increased, the soil structure becomes loose, the soil and an organic fertilizer can be fully and uniformly mixed, and the soil and the organic fertilizer can be uniformly mixed. The condition of non-uniform mixing of the organic fertilizer is avoided, the soil quality is improved, and the soil carbon sequestration effect is further improved.

The invention relates to the technical field of soil carbon improvement, and discloses a composite biological stimulant for tropical rainforest soil carbon improvement and a preparation method and application thereof, the composite biological stimulant is obtained by mixing a microbial preparation, an immobilized carrier, porous biochar, an inorganic mineral compound, a slow release fertilizer, a soil conditioner and a plant symbiotic inoculant; the microbial preparation comprises one or more of lactic acid bacteria, nitrifying bacteria, phosphate solubilizing bacteria, nitrogen-fixing bacteria and arbuscular mycorrhizal fungi; the inorganic mineral compound comprises feldspar, apatite and montmorillonite; the slow-release fertilizer comprises biochar, humic acid and phosphate; the soil conditioner comprises biological colloid prepared from seaweed extract and natural plant fiber prepared from straw and palm fiber; the plant symbiotic inoculant comprises rhizobium and / or endophyte. According to the composite biological stimulant, the soil carbon fixing capacity of the tropical rainforest is remarkably improved, the soil void structure is improved, and the plant growth capacity is enhanced.

The present invention discloses a composite microbial agent for coupling straw decomposition and soil carbon sequestration and a preparation method thereof. The composite microbial agent of the present invention can rapidly promote the degradation of lignocellulose of straw in soil by compounding Bacillus subtilis, Bacillus licheniformis, Pseudomonas aeruginosa, etc., providing a basic material energy source for the activities of soil microorganisms. At the same time, the corresponding microorganisms achieve long-term sequestration of organic carbon through humus stabilization and mineral-associated organic carbon (MAOC) stabilization, and significantly enhance the efficiency of organic carbon sequestration through nano-Fe3O4. Under the synergistic action of various strains in this composite microbial agent, it can effectively reduce the carbon loss during straw returning to the field, improve the soil carbon sequestration capacity, and increase the organic carbon content in the soil.

The invention discloses a soil monitoring method and system based on an unmanned aerial vehicle and remote sensing data fusion, and relates to the technical field of petroleum drilling and production measurement. According to the analysis method, geographic space elements and soil type parameters are obtained through analysis on the basis of fusion of unmanned aerial vehicle data monitoring and remote sensing data monitoring. According to the method, the unmanned aerial vehicle aerial photography data and the satellite remote sensing data are fused, all-dimensional and multi-scale basic geographic space data are provided, all-dimensional data support is provided for soil monitoring of the pre-drilling engineering land, the accuracy and timeliness of soil monitoring are guaranteed, and estimation of the soil carbon sequestration amount and the carbon loss of the pre-drilling engineering is met.

The invention belongs to the technical field of carbon emission reduction, and discloses a carbon emission reduction intelligent management method and system for a zero-carbon park. Comprising the following steps: acquiring meteorological data, soil data and vegetation data in a park according to a preset period, preprocessing the data by adopting a Kalman filtering algorithm, and inputting the preprocessed data into an initial ecological system model; performing iterative optimization on the initial ecological system model by taking the carbon sequestration amount of each plant and the soil carbon sequestration amount of each region obtained in each preset period as reference amounts until a preset iteration period is reached so as to obtain a target biological system model; acquiring real-time meteorological data, real-time soil data and real-time vegetation data in the park, preprocessing the real-time meteorological data, the real-time soil data and the real-time vegetation data by adopting a Kalman filtering algorithm, and inputting the preprocessed data into the target ecological system model to dynamically predict the carbon sequestration of each plant and the carbon sequestration of each region in the park; and dynamically adjusting a carbon emission reduction strategy based on the predicted carbon sequestration amount of each plant and the predicted carbon sequestration amount of each region soil. According to the invention, rapid and effective realization of the zero-carbon park is promoted.

The invention discloses a construction method for forming a modified aggregate based on wood vinegar and charcoal mixing, and belongs to the technical field of carbon sequestration and agricultural soil carbon sequestration. The method mainly comprises the following steps: mixing biochar, organic acid and mineral powder in proportion, adding water, granulating by using a stirrer to form an initial aggregate, stabilizing the initial aggregate through an aging maintenance process, and finally applying the obtained high-stability aggregate to a soil layer. The core of the method is that large-particle, porous and stable aggregates are artificially prefabricated, so that the physical and chemical stability of the biochar in the soil is greatly enhanced, and the decomposition and migration of the biochar are effectively inhibited. According to the method, long-term and efficient storage of atmospheric carbon dioxide is achieved, the granular structure and fertility of the sandy loam soil can be remarkably improved, and the method has the double benefits of soil carbon sequestration and water and fertilizer retention improvement.

The invention relates to the technical field of fertilizer preparation, and discloses a slow-release and controlled-release multifunctional yield-increasing fertilizer based on carbon sink agriculture and a preparation method thereof.The slow-release and controlled-release multifunctional yield-increasing fertilizer comprises a core layer, a middle layer, a shell layer and an outer attachment layer, and the preparation method comprises the steps that a multi-layer coating design is adopted, and a nutrient core layer is formed through melt blending granulation in sequence; a slow-release and carbon-sequestration synergistic intermediate layer is constructed by biochar-humic acid dynamic cross-linked gel, a photoresponse shell layer is formed by electrostatic spraying of nitrogen-doped nano-zinc oxide composite membrane liquid, and finally, the microbial capsule is accurately anchored on the surface in a micro-aerobic environment through an enzymatic grafting process. Through nano adsorption of a core layer, dynamic crosslinking of a middle layer and multi-level collaborative design of a shell light response film, nutrient controlled release and soil carbon sequestration functions are integrated; a multi-response mechanism is constructed based on environmental signal perception, and dynamic matching of the release rate and crop requirements is realized; an enzymatic grafting technology is used for anchoring a microbial inoculum to break through the bottleneck of activity protection, and an ecological closed loop is formed by combining with a full-degradable material.

The invention discloses a soil conditioner and a preparation method and application thereof, and relates to the technical field of soil remediation and improvement, and the soil conditioner comprises the following components: 50-80 parts of a fermented organic fertilizer, 30-60 parts of waste soil foaming particles, 15-30 parts of charcoal, 10-20 parts of biochemical fulvic acid, and 0.5-2 parts of a water-retaining agent. The waste soil foaming particles and biochemical fulvic acid used in the invention are both processed from garden waste and construction waste, waste resources are recycled, the carbon sequestration capability of soil is enhanced by carbon sink input of biochar, and the biochemical fulvic acid contains carboxyl, hydroxyl and phenolic hydroxyl functional groups, so that the soil carbon sequestration capability is enhanced. Physical or chemical adsorption with mineral substances on the surfaces of soil particles can be realized, so that the soil particles are bonded together, and formation of water-stable aggregates in the soil is further promoted.

The application discloses a method for monitoring carbon sink in non-carbonate rock area by using carbonate rock powder, and relates to the technical field of carbon sink monitoring. The method for monitoring carbon sink in non-carbonate rock area by using carbonate rock powder realizes real-time monitoring and storage of carbon sink data in non-carbonate rock area, and ensures the continuity and integrity of the data. Based on multivariate regression analysis, the soil and vegetation carbon sink characteristics of the non-carbonate rock area are evaluated, the soil carbon sink index and the vegetation carbon sink index are obtained, and the overall carbon sink index is evaluated. By using the carbon sink index data, a probability distribution model is fitted, the critical value of the natural fluctuation range of the carbon sink index is identified, and the threshold range of the carbon sink index is determined. The linear relationship between the mesh number of the carbonate rock powder and the soil carbon sequestration rate is analyzed by using a linear regression model, and a carbon sink linear regression model is constructed. When the carbon sink index is lower than the threshold range, the application amount and frequency of the carbonate rock powder are dynamically adjusted according to the carbon sink linear regression model, and the carbon sink management is optimized.

The invention relates to the technical field of straw degrading microbial inoculants, in particular to a bacterium-algae composite microbial inoculant capable of efficiently degrading straw and reducing emission and sequestering carbon as well as a preparation method and application of the bacterium-algae composite microbial inoculant, and the bacterium-algae composite microbial inoculant is prepared by mixing blue-green algae and Cellulomonas illani according to a mass ratio of 1: (3-9), preferably 1: 7. The preparation method comprises the following steps: respectively culturing blue-green algae and strains to specific optical densities, centrifugally collecting algae and thalli, mixing according to a ratio, complementing the mass with humic acid, and drying and powdering to obtain the microbial inoculum. When the complex microbial inoculant is applied according to 10 g / m < 2 > after straw returning to the field, the straw degradation efficiency can be remarkably improved, meanwhile, through the carbon sequestration effect of blue-green algae, emission of CO2 and CH4 is reduced, straw carbon is promoted to be converted into soil organic carbon, the soil carbon sequestration function is enhanced, the crop growth performance is improved, the synergistic interaction of straw degradation, carbon emission reduction and soil recarburization is achieved, and the crop yield is improved. The method is suitable for agricultural waste recycling and green low-carbon agricultural development.

The invention discloses a biomass power plant ash composition for improving soil carbon sink as well as a preparation method and application of the biomass power plant ash composition, and belongs to the technical field of agricultural resources and environment. The composition is formed by compounding fly ash and slag according to the dry basis mass ratio of (2-3): 1, and the heavy metal content of the composition meets the agricultural safety standard. The preparation method comprises the steps of raw material pretreatment and optimized compounding. The core of the method is that the fly ash is used as a main carbon source by increasing the proportion of the fly ash, physical protection is provided by utilizing the microporous structure of the slag, and the fly ash and the slag jointly act on the soil, so that the organic carbon library of the soil is rapidly and stably increased. Experiments show that the composition provided by the invention can significantly improve the organic carbon content and the carbon library management index (CPI) of soil, effectively reduce the daily average mineralization rate of organic carbon, and realize efficient and high value-added resource utilization of biomass ash in the field of soil carbon sequestration.

The invention relates to the technical field of soil conditioners and applications thereof, and discloses a soil carbon sequestration-pollution reduction-yield increase multi-effect synergistic microbial inoculum and an application thereof in ploughing ability improvement, the soil carbon sequestration-pollution reduction-yield increase multi-effect synergistic microbial inoculum comprises an organic pollutant degradation functional flora, a soil carbon sequestration functional flora and a small molecular organic matter production functional flora; the organic pollutant degrading functional flora comprises efficient pollutant degrading bacteria; the soil carbon sequestration functional flora comprises ammonia oxidizing bacteria, ammonia oxidizing archaea, complete ammonia oxidizing bacteria, sulfate reducing bacteria, iron reducing bacteria, rhizobium and photosynthetic flora; the micromolecular organic matter production functional flora comprises heterotrophic nitrification-aerobic denitrification bacteria, zoogloea, phosphorus-accumulating bacteria and photosynthetic bacteria. According to the scheme, multiple florae are specifically arranged in the synergistic agent, and through the synergistic interaction effect of the florae, the effects of the synergistic agent in multiple fields of soil carbon sequestration, pollution reduction and yield increase are effectively improved.

The application discloses a kind of microbial fertilizer and its in improving white pulp soil carbon sequestration capacity and application in promoting straw decomposition, belong to the technical field of microbial fertilizer.The microbial fertilizer includes organic matter, biochar, microbial inoculant, trace element and microbial activator;The microbial inoculant includes bacillus ND2 and bacillus megaterium CICC 22681;The microbial activator includes fulvic acid, gamma-polyglutamic acid and sorbitol.The microbial fertilizer of the application has the dual function of white pulp soil improvement and straw decomposition, can accelerate straw decomposition, improve white pulp soil structure, improve soil fertility and carbon sequestration capacity, help agricultural waste resourceization and soil quality improvement collaborative development, in white pulp soil area or other barren soil area in future agricultural production, it is expected to become important technical support for promoting sustainable development of ecological agriculture, and application prospect is wide.

Microorganisms and bioprocesses are provided that convert gaseous substrates, such as renewable H2 and waste CO2 producer gas, or syngas into high-protein biomass that may be used directly for human nutrition, or as a nutrient for plants, fungi, or other microorganisms, or as a source of soil carbon, nitrogen, and other mineral nutrients. Renewable H2 used in the processes described herein may be generated by electrolysis using solar or wind power. Producer gas used in the processes described herein may be derived from sources that include gasification of waste feedstock and / or biomass residue, waste gas from industrial processes, or natural gas, biogas, or landfill gas.

Systems and methods are provided for carbon sequestration. Disclosed in one embodiment is a carbon sequestration system that includes a crop residue pickup configured to ingest crop residue disposed on a field; a pyrolyzer configured to receive the crop residue output from the crop residue pickup and process the crop residue into biochar; a biochar / water or slurry mixing system configured to receive the biochar output from the pyrolyzer and quench the biochar in water and / or slurry; a soil injection system configured to receive the quenched biochar from the biochar / water or slurry mixing system and inject the quenched biochar into the field; and one or more sensors configured to detect one or more operations states of the crop residue pickup, the pyrolyzer, the biochar / water or slurry mixing system, and / or the soil injection system.

Systems and methods arc provided for carbon sequestration. Disclosed in one embodiment is a carbon sequestration system that includes a crop residue pickup configured to ingest crop residue disposed on a field; a pyrolyzer configured to receive the crop residue output from the crop residue pickup and process the crop residue into biochar; a biochar / water or slurry mixing system configured to receive the biochar output from the pyrolyzer and quench the biochar in water and / or slurry; a soil injection system configured to receive the quenched biochar from the biochar / water or slurry mixing system and inject the quenched biochar into the field; and one or more sensors configured to detect one or more operations states of the crop residue pickup, the pyrolyzer, the biochar / water or slurry mixing system, and / or the soil injection system.

The invention discloses a knowledge-guided and process-driven forest soil layered carbon sink simulation system, which comprises the following steps of: screening a continuous and complete soil profile according to forest soil organic carbon layered observation data; optimizing process model parameters of the terrestrial ecosystem at each measuring point by adopting a Bayesian data assimilation technology; processing the current vegetation terrain soil attribute data to obtain multi-modal standardized data as an input variable of a random forest model, performing heterogeneity learning and scale expansion on optimization parameters by using the random forest model, and simulating the organic carbon reserve of the current layered soil based on steady-state hypothesis and external driving data of a lattice point scale; and based on an instantaneous hypothesis, generating a future forest soil layered carbon sink simulation result by taking scale extension parameters and future external driving data as driving and combining current layered soil organic carbon reserves, so as to realize accurate, digital and intelligent monitoring and evaluation of the forest soil carbon sink capacity.

The present invention discloses a biofertilizer and its application in combination with microplastics to enhance soil carbon sequestration. The raw materials of the biofertilizer include a microbial agent and an organic carrier; the strain in the microbial agent is selected from at least one of Bacillus velezensis, Bacillus methylotrophicus, and Bacillus licheniformis; and the organic carrier includes a fermentation product of molasses and animal feces. The present invention combines organic biofertilizer with microplastics to provide a method for enhancing soil carbon sequestration. This method is environmentally friendly, sustainable, and highly efficient. The method can effectively increase soil pH, SOC, and OM, thereby generating better overall benefits.