59 results about "Carbon pool" patented technology

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 provides a modeling method and system applied to ecological system carbon library monitoring under influence of water-power engineering, and the method comprises the steps: obtaining a drainage basin geographic information data set and a water-power engineering operation data set, and carrying out the water flow dynamic feature analysis of the drainage basin geographic information data set and the water-power engineering operation data set; the method comprises the following steps: obtaining a watershed water flow dynamic feature vector set, deducing soil physicochemical property offset and vegetation community structure variation according to the watershed water flow dynamic feature vector set, coupling the soil physicochemical property offset and the vegetation community structure variation to carry out carbon cycle process digital quantitative modeling, and generating a carbon reservoir reserve change sequence. And constructing an ecological system carbon library monitoring model under the influence of the hydropower engineering based on the carbon library reserve change sequence. According to the method, the accuracy of water-power engineering ecosystem carbon sink effect evaluation and prediction is effectively improved, and a more reliable basis is provided for related decisions.

The present application relates to the field of agricultural soil improvement and orchard fertilization technology, and discloses a kind of southern red soil area orchard annual green manure covering and carbon-increasing quality improving method, including that mature livestock and poultry manure is mixed with industrial grade calcium-magnesium phosphate fertilizer and applied to surface soil before green manure sowing;Sowing Indian cowpea in spring, mixed sowing Chinese milk vetch and field radish in autumn;Green manure of leguminous plants is mowed in situ when it is in full bloom to initial pod stage to make it flat;Uniformly spray directional wood-decay fungi complex liquid to the surface of green manure;Use pyroligneous acid to wet crushed dry crop straw, cover micro-acid straw on the surface of green manure;Mechanically subsoil in the following autumn, and inject PAM composite biomass charcoal suspension into the bottom of subsoiling groove simultaneously.The present application neutralizes and intercepts ammonia gas released by green manure to block nitrogen volatilization by using micro-acid straw, accelerates the degradation of macromolecular lignocellulose by using wood-decay fungi, and constructs deep stable carbon sink by combining with deep injection of porous carbon suspension, thereby effectively improving the overall carbon pool capacity of red soil profile.

The invention discloses a carbon sequestration capability assessment method based on ecological restoration, and belongs to the technical field of carbon sequestration assessment, and the method comprises the following steps: S1, obtaining growth data of each plant in an ecological restoration region in a restoration period; s2, determining functional leaves of each plant, and obtaining a carbon sequestration transition coefficient of the plant during the restoration period according to the growth data of the functional leaves during the restoration period; s3, inputting the carbon sequestration transition coefficient of each plant in the restoration period into the carbon sequestration capability stage model to obtain the carbon sequestration capability weight of each plant at each moment in the restoration period; and S4, determining a restoration result of the ecological restoration area according to the carbon sequestration capability weight of each plant at each moment in the restoration period and the base carbon library of the ecological restoration area. According to the method, systematic evaluation of the carbon sink capacity of the whole restoration area is realized, and the accuracy and reliability of ecological restoration carbon sink evaluation are greatly improved.

The utility model discloses an activated carbon sampling device for an activated carbon pool, a rod assembly comprises a first connecting rod and second connecting rods, and the sampling depth is adjusted by increasing or decreasing the number of the second connecting rods; the sampling assembly comprises a sampling rod and a flow guide plate; the sleeve assembly comprises a sleeve and a third connecting rod, and the sleeve sleeves the rod assembly through the third connecting rod and can move relative to the sampling assembly. During sampling, the sampling assembly is rotated to enable the flow guide plate to collect samples, then the sleeve blade edge is cut into the activated carbon layer, and in-situ water filtering is achieved through the first water permeable holes. The device can obtain the deep sample of the carbon pool without manual excavation, avoids pollution and is convenient to operate; a detachable structure is convenient to adjust the sampling depth and carry and transport; the flow guide plate and the first water permeable holes cooperate to avoid the pond body drainage step, the sampling efficiency is improved, and the detachable connection of the device gives consideration to the operation flexibility and the sampling precision.

The present application belongs to the technical field of geochemistry, and particularly relates to the estimation of the carbon flux of the earth system, and especially relates to a method and system for estimating the carbon flux of the deep-time earth system. The method for estimating the carbon flux of the deep-time earth system provided by the present application solves the four defects in the traditional technology caused by the fixed carbon pool assumption, the neglect of the atmospheric / biosphere carbon content, the isotopic error, and the failure to consider the fractionation effect through dynamic carbon pool segmentation, the inclusion of multi-sphere isotopic composition, and the correction of fractionation effect. The high-precision and verifiable model framework not only improves the scientificity of the deep-time carbon cycle research, but also provides a key tool for analyzing the climate evolution mechanism in the geological history period and predicting the future climate change trend, and has important theoretical innovation and practical application value.

The present application belongs to the technical field of soil carbon pool balance regulation, and particularly relates to a soil carbon pool balance regulation method for a corn planting area based on the Internet of Things. 3+ After interference, carbon pool monitoring data is obtained; net carbon pool income is calculated to determine a carbon surplus, deficit or balance state; a targeted regulation strategy is formulated in combination with the corn growth period; regulation is performed and closed-loop feedback correction is performed until the carbon pool is stable and balanced. The present application realizes real-time and accurate monitoring of carbon pool parameters and intelligent regulation of the whole process, solves the problems of large errors and blind regulation in traditional management, improves the efficiency and stability of carbon pool balance regulation, and balances high corn yield and sustainable development of farmland ecology, and is suitable for large-scale corn planting areas.

The application discloses a marine ranching fishery carbon sink metering device in the technical field of carbon sink metering, which comprises a traction rope and a sampling cylinder, a counterweight assembly is fixedly connected to the top end of the sampling cylinder, a rotating assembly for rotating the counterweight assembly and the sampling cylinder under the flow of seawater when the sampling cylinder vertically descends in the sea is arranged on the surface of the counterweight assembly, and the top end of the counterweight assembly is detachably connected with the traction rope. The stability of the sampling cylinder during descending is enhanced through the counterweight assembly, meanwhile, the rotating assembly drives the counterweight assembly and the sampling cylinder to rotate under the action of seawater flow, a stable effect similar to a gyroscope is formed, the problem that the sampling cylinder deviates from the vertical line caused by the impact of sea current and the drift of the ship body is effectively offset, the sediment sampling accurately corresponds to the preset area is ensured, and more reliable sampling data for the quantification and accounting of the sediment carbon sink in the marine ranching fishery carbon sink metering is provided.

The invention provides a drainage basin green carbon library construction method and device based on evaluation-feedback regulation and a storage medium, and relates to the technical field of green carbon libraries, and the method comprises the steps: obtaining a core carbon data set under a drainage basin scale; simulating a net carbon sink estimated value through the ecosystem model of the process to obtain a net carbon reserve variation, and correcting an estimated value of the productivity of the net ecosystem according to a comparison result of the net carbon sink estimated value and the net carbon reserve variation to obtain a corrected watershed carbon sink potential; dividing the drainage basin into a plurality of green carbon reservoir functional areas based on the division standards of carbon reserves, carbon sink potential and carbon emission, and obtaining green carbon reservoir construction measures for different functional areas; and after the measures are implemented, obtaining drainage basin net ecosystem carbon balance trend evaluation data of each functional area, obtaining regulation and control feedback of each carbon library construction measure based on the change trend of the data, and further adjusting the carbon library construction measures. By adopting the green carbon library construction method provided by the invention, a feasible method can be provided for systematic construction of the green carbon library.

The invention discloses a hypha three-dimensional carbon net composite carbon sequestration fungicide and a preparation method and application thereof. The preparation method comprises the following steps: firstly, placing aspergillus niger hyphae in a carbonization furnace for carbonization to obtain a hypha three-dimensional carbon net; and then putting the mycelium three-dimensional carbon net into a bacillus megatherium liquid, oscillating at constant temperature, filtering, and drying to obtain the mycelium three-dimensional carbon net composite carbon sequestration fungicide. When the compound is applied to improvement of soil fertility, the soil fertility can be comprehensively improved through multiple ways of regulating and controlling a soil carbon library, optimizing an acid-base environment, improving a physical structure, improving nutrient reserves and the like, and a basis is provided for application of the compound as a novel soil conditioner to agricultural production and promotion of soil health and sustainable agricultural development.

The invention discloses a method for rapidly evaluating the stability of a soil organic carbon library. The method comprises the following steps: firstly, carrying out standard pretreatment on a soil sample; carrying out particle size grading on the pretreated standardized sample through a physical method, separating out organic carbon components fPOM, cPOM and MAOM, respectively collecting each component and removing inorganic carbon in each component; all the components are dried and ground; standard sample packaging is conducted on all the components, the components are sent into an element analyzer to be detected and analyzed, and the organic carbon content measured by all the components is obtained; calculating the stability index of the organic carbon library, and evaluating the stability. According to the method, a quantitative carbon library stability evaluation model is constructed, the operation is simple, the cost is low, a closed loop is formed by separation-detection-evaluation, and a powerful technical tool is provided for rapid and accurate evaluation of the soil carbon sink function under the carbon neutralization background.

The invention relates to the technical field of environmental simulation calculation, in particular to a karst region soil carbon concentration-rainfall event response evaluation method. A karst region soil carbon concentration-rainfall event response evaluation method comprises the following steps: S1, acquiring an extreme rainfall event and a non-extreme rainfall event, determining a dominant mode of a dominant path according to the extreme rainfall event, and determining carbon loss intensity of a recessive path according to the non-extreme rainfall event; s2, determining the excitation emission intensity of a soil carbon library according to the extreme rainfall event; and S3, based on the dominant mode of the dominant path, the carbon loss intensity of the recessive path and the excitation emission intensity of the soil carbon library, carrying out comprehensive integration analysis and uncertainty evaluation by adopting Monte Carlo simulation. According to the method, a multi-path carbon loss assessment framework is constructed, explicit and implicit path quantification and Monte Carlo simulation are fused, and the carbon cycle analysis precision and risk assessment capability of the karst region are improved.

The invention discloses a soil carbon (SOC and MBC) remote sensing inversion algorithm system based on a microbial decomposition process. The system comprises a data input module, a model construction and calculation module, a parameter optimization module, a space inversion module and an output verification module. The core of the soil carbon remote sensing inversion method is that a microbial four-pool decomposition model based on Michaelis-Menten enzyme kinetics is constructed, and the dynamic interaction of plant source carbon, microbial biomass carbon and two types of microbial residue carbon libraries is clearly depicted; carrying out efficient inversion and calibration on key dynamic parameters of the model by using a Bayesian optimization algorithm and taking limited ground observation data as constraints; and finally, fusing multi-source remote sensing data, solving a steady-state solution of the model pixel by pixel, and generating a high-precision soil organic carbon and microbial biomass carbon spatial distribution product. According to the method, high-precision, high-resolution and clear-mechanism soil carbon reserve estimation in a large-range region is realized, and a reliable technical tool is provided for regional carbon sink management and climate change research.

The invention relates to the technical field of forestry monitoring, in particular to a forestry carbon sink dynamic monitoring method and system based on multi-source image data, and the method comprises the steps: collecting multi-source data to form a multi-source data set; inverting vegetation biomass and carbon density, initial reserve of organic carbon in surface soil and annual input of litter; calculating the decomposition rate and residual quantity of the litter according to the meteorological data; based on the soil initial carbon reserve, the litter input quantity and the microbial respiratory capacity, calculating the soil carbon library variation; integrating the dynamic process of the carbon library, and calculating the vegetation carbon variation and the total carbon sequestration amount per month; repeating the steps S1 to S4 periodically, updating data and parameters, and outputting a periodic carbon sequestration amount; and accumulating data to generate an annual carbon sink dynamic curve and a spatial distribution map. The dynamic carbon sequestration process is completely reflected, and the deviation with the actual carbon sequestration capacity is eliminated.

1. The name of the design product: carbon sink project data collection graphical user interface for electronic device. 2. The use of the design product: for electronic device. 3. The design points of the design product: the graphical user interface displayed on the electronic device. 4. The picture or photo that best indicates the design points: front view. 5. The use of the graphical user interface: for the collection and management of carbon sink project data. 6. The human-computer interaction mode of the graphical user interface: the front view defaults to the main interface of carbon sink project data collection, and the basic information page by default; after filling in the project information in the main view interface, click next to enter change state diagram 1, fill in the proof file explanation of applicable conditions in the interface of change state diagram 1, click next to enter change state diagram 2, fill in the proof explanation of additional argumentation in the interface of change state diagram 2, click next to enter change state diagram 3, fill in the carbon pool related data in the interface of change state diagram 3, click next to enter change state diagram 4, fill in the carbon emission source related data in the interface of change state diagram 4, click next to enter change state diagram 5. 7. Other circumstances that need to be explained: the "x" in each view represents variable text and / or numbers; the gray blocks in each view are content screens.

The invention relates to the technical field of carbon sequestration, and discloses an improvement method for improving the carbon sequestration capability of biochar, which comprises the following steps: S1, preparing a biochar matrix; s2, loading an MOF precursor; s3, gradient roasting-plasma activation coupling treatment; s4, grafting with a bio-based cross-linking agent; the invention not only provides an efficient and stable biochar carbon sequestration improvement technology, but also can provide a feasible solution for coping with climate change and promoting agricultural green development by increasing the soil carbon reservoir reserves and improving the soil structure, and has remarkable environmental protection value, economic value and social significance.

The invention belongs to the technical field of microbial agents for soil improvement, and particularly relates to application of a microbial agent for promoting carbon immobilization of a red soil rice field. The microbial inoculum is rhodococcus erythropolis or a synthetic microbial inoculum of rhodococcus erythropolis and pseudomonas aeruginosa, and after the rice seedlings are transplanted to red soil for 3 days, 25mL of suspension liquid of the related microbial inoculum is inoculated to the rhizosphere of each rice seedling. According to the application, the rhizosphere microenvironment is improved, input of plant photosynthetic carbon into soil is activated, meanwhile, the carbon utilization efficiency and conversion capacity of soil in-situ microbial communities are remarkably improved, accumulation of microbial source carbon is promoted, the molecular composition structure of soluble organic matter is remodeled, and finally formation and accumulation of a soil carbon library are promoted and stabilized.

The invention discloses a demand side resource and energy storage coordinated regulation and control method and system based on carbon index constraint. The method comprises the steps of collecting real-time load data, renewable energy output data and energy storage equipment state data of a regional power grid and a dynamic carbon emission intensity signal issued by a superior power grid; based on the dynamic carbon emission intensity signal, a load side carbon emission intensity spectrum with temporal-spatial resolution is generated through a source-load-storage full-link carbon flow tracking algorithm; according to the load side carbon emission intensity spectrum, a virtual carbon pool with the carbon cost as a weight factor is established, and a flexible load regulation and control priority sequence is generated; and in combination with the flexible load regulation priority sequence and the real-time charging and discharging boundary of the energy storage system, solving a multi-time-scale collaborative optimization model and generating a source-network-load-storage integrated regulation strategy by taking the condition that the carbon intensity of the system is not out of limit as a core constraint. According to the embodiment of the invention, fine metering and active regulation and control of load side carbon emission can be realized, and the response capability of the system to dynamic carbon constraint is improved.

The invention discloses a watershed scale ecosystem carbon reserve and carbon flux expression method, which belongs to the technical field of carbon reserve and carbon flux expression methods, and realizes dynamic expression of watershed scale ecosystem carbon reserve and carbon flux by constructing a carbon reserve matrix and a carbon flux matrix and integrating transverse carbon migration and dissolved inorganic carbon flux. The carbon reserve matrix comprises overground and underground biomass carbon reserves of an arbor layer, a shrub layer and a herbaceous layer and carbon reserves of dead standing trees, litters, a soil layer, a wetland and an aquatic ecosystem of each pattern spot in the drainage basin, and calculating the total carbon reserves of each pattern spot and the drainage basin; the carbon flux matrix comprises the carbon reserve variable quantity and the carbon migration flux of each pattern spot carbon library in different time intervals, and the carbon exchange flux, the water body carbon flux and the DIC related flux of the ecological system and the atmosphere at the same time.

The embodiment of the invention provides a two-library soil carbon cycle simulation method under an erosion condition and related equipment, and belongs to the technical field of data processing, and the method comprises the following steps: obtaining soil data of a target area; dividing the target area into a plurality of sub-areas; calculating a carbon library component of each sub-region according to the soil data; updating the carbon library components according to an erosion-deposition rule, wherein the erosion-deposition rule comprises soil layer number transfer rates of an erosion area and a deposition area; and simulating the carbon circulation amount of the soil according to the updated carbon library components. Soil carbon circulation under the erosion condition within the global range is simulated according to soil data of a target area through a two-library soil model, carbon library components are updated according to an erosion-deposition rule, the erosion-driven carbon circulation process is simulated, and soil organic carbon component properties and soil respiratory capacity changes are studied.

The invention discloses a geologic body CO2 sequestration capacity calculation method and device based on artificial intelligence, and relates to the technical field of carbon sequestration of different types of geologic bodies, and the method comprises the steps: constructing three-dimensional geologic models of different types of oil reservoirs; according to the remaining oil distribution laws of the different types of oil reservoirs, the influence laws of the different types of oil reservoirs on CO2 burying under different reservoir conditions are analyzed, and then the change laws of various mechanism contribution rates under different conditions are determined; combining a numerical simulation technology and a change rule of a mechanism contribution rate, and through an artificial intelligence training model, forming an effective embedding coefficient plate under the influence of multiple factors; and establishing an effective carbon burying stock calculation method for different types of oil reservoirs to calculate the effective carbon burying stock and screen out favorable burying areas. According to the method for calculating the carbon burying stock of the different types of oil reservoirs, theoretical guidance is provided for backing up the potential of the oil field carbon reservoirs, the buried carbon amount of the different types of oil reservoirs can be rapidly and accurately calculated, and the carbon burying potential is defined.

This invention discloses a method for efficient utilization of straw resources and enhancement of soil carbon pool in grain-mushroom intercropping, comprising the following steps: preparing a layered substrate, the layered substrate comprising 40-45 parts by weight of wheat straw, 35-40 parts by weight of corn straw, 5-8 parts by weight of rice bran, 1-2 parts by weight of gypsum, and 0.5-1 parts by weight of calcium carbonate; subjecting the layered substrate to hydrothermal treatment at 65-70℃ for 90±5 minutes, and then cooling it to 25±2℃; inoculating the cooled substrate with Trichoderma harzianum strain T-22 at an inoculation amount of 10% of the substrate weight. 6 The concentration of CFU / g was measured and cultured at 25±2℃ and 75-85% relative humidity for 24-36 hours. A sequential inoculation system was used, first inoculating oyster mushrooms at 3% of the substrate weight, then inoculating shiitake mushrooms at 2.5% of the substrate weight after 7 days, and finally inoculating king oyster mushrooms at 2% of the substrate weight after another 7 days.

This application provides a quantitative assessment method for the carbon sink effect of flood control measures in the lower reaches of the Yellow River. It relates to the field of flood control technology and fully considers the core characteristics of the lower Yellow River, including siltation, frequent floods, and a complex ecological environment. It specifically covers typical governance projects such as dike reinforcement, river regulation, Yellow River irrigation, and silt-backed dike reinforcement. The carbon sink effect is subdivided into three core scenarios: greening and carbon sequestration, sedimentary carbon storage, and flood control and emission reduction. This fills the gap in the applicability of general carbon sink methodologies in the field of watershed flood control. The methodology explicitly excludes non-core carbon sink increases from crops, forests, grasslands, flowers, and fruits, focusing on key carbon pools such as trees, shrubs, and soil organic carbon. It also specifically designs accounting logic to address special issues such as organic carbon oxidation during sediment transport and methane emissions caused by flooding, ensuring that the assessment results highly match the actual carbon sink contribution of the lower Yellow River governance and avoiding accounting biases caused by applying general methodologies.

The invention discloses a whole-course integrated safety system for carbon dioxide trapping, sealing and reusing, which belongs to the technical field of gas separation and process control, and comprises the following steps: acquiring a real-time flue gas flow parameter and a real-time carbon dioxide concentration parameter, generating and predicting flue gas disturbance characteristics, and determining the real-time flue gas flow parameter and the real-time carbon dioxide concentration parameter; obtaining a predicted carbon dioxide load and carrying out capture feed-forward adjustment; the actual trapping mass is obtained and compared with the instantaneous discharge mass, and the actual trapping efficiency is obtained; monitoring carbon mass balance by using the virtual carbon buffer library model to obtain a virtual carbon buffer library balance deviation; and determining a buffer area, generating an intelligent fault positioning instruction, and carrying out quality confirmation and safety detection in a recycling link. According to the method, feedforward adjustment is achieved by predicting flue gas disturbance, the virtual carbon library is used for monitoring quality balance of trapping and storage, multi-source parameters are cooperatively analyzed to position faults, quality confirmation and safety interlocking are carried out in the recycling link, the trapping process can be stabilized, abnormity can be rapidly diagnosed, and system safety is guaranteed.

The present application relates to the technical field of data measurement, and more particularly to a method for rapid calculation of carbon source and sink of mine area scale ecosystem. The method comprises the following steps: obtaining mine area remote sensing image data, ground measured data and mine area mining activity records, and constructing a multi-source mine area basic data set; performing spatial registration and time alignment on the multi-source mine area basic data set to obtain an aligned multi-source fusion data set; identifying mine land occupation patches based on the aligned multi-source fusion data set, extracting land use type information of the patches, forming a land use type data set, and combining with mine area carbon pool type definition to generate a carbon pool classification data set; therefore, the present application integrates multi-source data, optimizes spatial and time alignment, and refines the carbon storage calculation process, solves the problems of data dispersion and inaccurate calculation in the traditional method, and improves the scientificity and reliability of the mine area ecosystem carbon source and sink measurement.

The invention discloses a judgment method for regulating and controlling a soil carbon circulation path through biochar, and belongs to the technical field of soil carbon management and agricultural environment. The method comprises the following steps: acquiring components with different densities through soil culture and density grading, namely a free light component fLF, an aggregate combined light component oLF and a mineral combined heavy component HF; and in combination with a stable carbon isotope technology, delta 13C values of all components and the whole soil are measured, and a relative carbon isotope value delta 13C is calculated. The core of the method is as follows: in the same soil layer of the same treatment, the potential circulation direction of carbon among different carbon libraries is judged in the delta 13C increasing direction; the regulation and control characteristics of the charcoal on the carbon circulation path are judged by comparing the change of the carbon circulation direction before and after the charcoal is applied; the effective carbon circulation path can be determined through further calculation.

The invention discloses a coastal wet-water saline-alkaline area paddy-upland rotation soil water-salt-carbon-fertilizer coordinated regulation and control method, which comprises the following steps: (1) constructing an open trench + concealed conduit + monitoring network three-dimensional drainage salt control system to realize zoned active salt control; (2) adopting an intermittent tillage system based on soil texture, and optimizing a plough layer structure through combination of periodic deep tillage and conventional rotary tillage; (3) performing straw zoned returning, constructing a deep salt-resistant layer in the deep tillage year, and quickly increasing organic matters in a plough layer in the rotary tillage year; (4) applying biologically active and stable carbon sources in a compatible manner, and determining the carbon input amount according to the salinity level, so as to realize directional fertilization and carbon library compatibilization; and (5) implementing a nitrogen-increasing fertilization strategy adaptive to salt stress, and realizing efficient utilization of nitrogen in combination with urease and a nitrification inhibitor. Through cooperation of multiple links, the productivity and sustainability of the coastal saline-alkali land paddy-upland rotation system are systematically improved.

The invention discloses a hydropower station construction project carbon sink capability assessment method. The method comprises the steps of obtaining assessment basic data of a to-be-assessed hydropower station construction project; inputting the evaluation basic data into the subitem carbon sink accounting models respectively, and obtaining subitem carbon sink quantities output by the models; inputting the subitem carbon sequestration quantity into a carbon sequestration comprehensive evaluation model, obtaining the overall carbon sequestration capacity of the project through a summary formula, and converting the overall carbon sequestration capacity into carbon dioxide equivalent; and determining an evaluation grade corresponding to the carbon dioxide equivalent in the target preset carbon sink interval. The improvement effect of soil improvement on a soil organic carbon library is quantified, a verifiable soil sink increase amount accounting method is formed, water and soil conservation engineering measures are converted into quantifiable carbon sink benefits, and the soil erosion amount reduced after the measures are implemented is accurately evaluated; the background condition before construction, various measures in the construction process and later ecological optimization are taken as a continuous whole, and the whole-process and systematic quantitative evaluation of the carbon sequestration capacity of the hydropower station in the construction period is realized.

The invention discloses a biomass power plant ash composition for synergistically improving soil carbon sink and microbial activity and a preparation method and application thereof, and belongs to the technical field of agricultural resources and environment. The biomass ash composition comprises fly ash and slag, and the mass ratio of the fly ash to the slag is (1-3): (1-3); and determining the physicochemical properties and the heavy metal content of the biomass ash composition. The preparation method comprises the steps of raw material pretreatment and compounding. According to the soil diagnosis result, the optimal formula is selected, blind application is avoided, and the input-output ratio of improved resources is maximized. The defects (FA bacteriostasis and BS carbon sequestration are weak) of a single component are overcome, the unification of two contradictory targets of carbon sequestration and enrichment is realized, and the functions of a soil organic carbon library and an ecological system are synchronously improved. A high-added-value resource utilization way is found for solid waste, waste is turned into wealth, the cost is low, and the method conforms to the strategy of circular agriculture.

The present application relates to the field of ecological environment monitoring and geographic information system (GIS) application technology, and specifically provides a loess plateau ecological region carbon sink accounting method based on terrain effect and mining stress. The method of the present application comprises obtaining a multi-source correction data set, wherein the types of the multi-source at least include remote sensing data, geographic data and ground data; determining a mining stress index based on the multi-source correction data set; determining a soil erosion carbon pool estimation value based on the multi-source correction data set; determining a net ecosystem productivity based on the multi-source correction data set, the mining stress index and the soil erosion carbon pool estimation value. The present application realizes the quantitative inhibition effect of mining activities on vegetation carbon fixation, thereby reducing the deviation of forest carbon sink accounting around the mining area, making the accounting result in the ecological fragile area more objective and conservative, improving the accuracy of carbon sink accounting, realizing regional correction of net ecosystem productivity, and improving the accuracy of loess plateau ecological region carbon sink accounting.