66 results about "Carbon fixation" patented technology

The invention discloses a land comprehensive improvement quality evaluation method and system based on big data, relates to the technical field of land resource management, and solves the problem of lack of effective quantification means for more critical ecosystem function indexes. The invention discloses a land comprehensive improvement quality evaluation method and system based on big data. The method comprises the steps that a remote sensing image module and an optical image module are used for collecting image data of soil surface vegetation; uploading the acquired image data to a cloud platform through a data network, and establishing a soil surface vegetation optical evaluation index database; the carbon dioxide monitoring module and the oxygen monitoring module are used for monitoring the carbon dioxide concentration and oxygen near the vegetation on the soil surface in real time. According to the method, a soil surface vegetation carbon sequestration evaluation index database is established to calculate vegetation net primary productivity, biomass and carbon utilization efficiency, the vegetation net primary productivity, biomass and carbon utilization efficiency are summarized through a software program, and an ecological quality comprehensive index of soil surface vegetation is given.

A method of estimating amount of carbon fixation in a plant comprises receiving a set of temporal sequences, respectively corresponding to a set of consecutive days, each sequence describing a size of a part of the plant as measured repeatedly over one of the days. Morphologically equivalent pairs of sequences are identified in the set of sequences, and parameter subtraction is applied between parameters representing sequences in each pair of at least a portion of the pairs, to provide a size change of the plant part for the pair. The method estimates the amount of carbon fixation in the plant based on the size change.

The invention relates to the technical field of microbial carbon sequestration, and discloses bacillus megaterium, a carbon sequestration microbial agent as well as a preparation method and application of the carbon sequestration microbial agent. The preservation number of the bacillus megaterium provided by the invention is CGMCC (China General Microbiological Culture Collection Center) No.35586. The bacillus megaterium provided by the invention is a new strain of bacillus megaterium separated from a water sample in an oil field. The bacillus megaterium can effectively immobilize carbon dioxide in the atmosphere and generate gases such as nitrogen under a high-temperature condition through a unique metabolic pathway, so that the synergistic effect of carbon sequestration and gas production is realized, and the energy recovery rate and environmental benefits of the whole biological process are improved.

This invention discloses a system for combined carbon sequestration and soil improvement using biogas slurry and biochar, relating to the fields of soil improvement and carbon fixation technology. The system includes: calculating the pore mineralization throat ring index by measuring the short-range elution release equivalent, total load equivalent, and connectivity ratio of the composite particles; adjusting the total load equivalent based on this index to obtain the true effective exchange load of the composite particles; and finally calculating the application rate per unit area based on the unit area requirement equivalent of the target plot, using this to guide field application. This invention achieves adaptive quantitative fertilization, effectively ensuring the stability of carbon sequestration and soil improvement effects under complex conditions.

The present application relates to the technical field of ecological environment and carbon emission management, and discloses a method, device and equipment for evaluating carbon sink potential of ecological restoration in an open-pit mine area, which comprises the following steps: obtaining basic data of the mine area, and constructing a multi-dimensional remote sensing data cube, an environmental factor database and a species distribution sample database based on the basic data of the mine area; generating a closed pit spatiotemporal distribution database based on the multi-dimensional remote sensing data cube; modeling the habitat suitability probability of species based on the environmental factor database, the species distribution sample database and the closed pit spatiotemporal distribution database, and generating an ecological restoration suitability spatial zoning database; generating a carbon sink potential spatiotemporal distribution map based on the closed pit spatiotemporal distribution database and the ecological restoration suitability spatial zoning database, and evaluating the carbon sink potential of the mine area based on the carbon sink potential spatiotemporal distribution map; the present application can finely depict the spatiotemporal evolution law of the restoration of the mine area, dynamically quantify the carbon fixation potential of different restoration measures and species types, and obtain a scientific carbon sink evaluation method.

The invention discloses an air purification device and method for generating negative oxygen ions based on microalgae photosynthesis, and belongs to the technical field of microalgae biologication.The air purification device comprises an incubator, a protective cover, a culture light source, a negative oxygen ion generator and a fan, and a plurality of ventilation holes are formed in the protective cover. The air purification method is based on a natural purification mechanism of microalgae photosynthesis, and the problem that pollutants cannot be synchronously reduced and active ingredients cannot be synchronously improved in the traditional technology is creatively solved; according to the system, the physiological characteristics of carbon sequestration and oxygen release of microalgae are utilized, COs are efficiently removed, negative oxygen ions are naturally excited, the passive mode of purification without gain in the traditional technology is thoroughly subverted, the cycle can be restarted infinitely only by supplementing micronutrient salt through self-balancing metabolism of the algae and closed-loop regeneration of the culture solution, and the method is simple and convenient to operate. Therefore, office buildings, residences and even underground spaces can continuously obtain forest-level'air vitamin 'supply, and a self-maintenance healthy air ecological system with zero material consumption, zero ozone and zero site limitation is constructed.

To provide a carbon fixation device and a carbon fixation method that absorb and fixe carbon dioxide by using photosynthetic organisms supported on a fibrous carrier that is swingably installed in water.SOLUTION: A fibrous carrier 18 that is swingably installed in water and supports photosynthetic organisms comprises: a holding plate 9 that extends horizontally from a vertically extending connecting plate 2A and hangs down the plurality of fibrous carriers 18; a rectangular cylinder 3 that connects the vertically extending connecting plates 2A to 2D and surrounds the suspended fibrous carriers 18; a partition plate 5 that is placed at a predetermined distance from the connecting plate 2C opposite the connecting plate 2A and divides the inside of the rectangular cylinder 3; a floating body 4 that is connected to the rectangular cylinder 3 and can float on the water surface; a solar power generation system 13 placed on the floating body 4; and an aeration section 10 provided below a circulation path 19 formed between the partition plate 5 and the connecting plate 2C, thereby allowing the photosynthetic organisms supported on the fibrous carrier 18 to efficiently absorb and fix carbon dioxide.SELECTED DRAWING: Figure 1

The application discloses a kind of desert concentrated salt water solar salt local climate improvement system, belong to ecological engineering and the cross technical field of climate improvement.System includes the large-area solar salt evaporation pond group arranged in inland desert area, the wind tunnel acceleration evaporation distribution arranged along prevailing wind direction, and the ecological gain area of downwind direction.The present application utilizes the super-high evaporation capacity of inland desert area, and the large amount of water vapor generated during the solar salt process is transported to the downwind desert area through the wind tunnel acceleration distribution, continuously increases the local atmospheric water content and air relative humidity, triggers local rainfall increment, so that the annual precipitation of downwind area exceeds the survival threshold of desert vegetation, and promotes the natural recovery of native vegetation.At the same time, large-area evaporation water surface absorbs solar radiation heat, combined with vegetation carbon fixation, forms a significant carbon sink effect.

The present application relates to the technical field of culture medium, and discloses a light response type composite culture medium and application thereof in plant cultivation.A carbon fixation microorganism, a nitrogen fixation microorganism and a TiO2 / CdS heterojunction nanomaterial are used to form microspheres, a light nanomaterial and microorganism synergistic carbon fixation and nitrogen fixation system is constructed, and the system is mixed with a buffer solution composed of dipotassium hydrogen phosphate and potassium dihydrogen phosphate to obtain a light response type composite culture medium.The composite culture medium can improve the carbon and nitrogen cycle efficiency through processes such as photocatalysis, hydrogen storage and carbon and nitrogen fixation, and further significantly improve the plant growth cycle and yield.Experiments show that in a closed environment, the composite culture medium provided by the present application can shorten the growth cycle of lettuce to 20 days, and the fresh weight is increased to 60g after 20 days of growth.

The present invention provides a Pseudomonas GD-9 with carbon fixation ability and its application, which relate to the field of microbial technology. The Pseudomonas described in the present invention is classified and named as Pseudomonas Pseudomonas sp., and the deposit number is CGMCC No. 31725. The Pseudomonas described in the present invention is isolated from the soil in the rocky desertification photovoltaic field area of ​​Shilin County, Yunnan Province. Experiments have shown that the Pseudomonas can maintain good growth activity and carbon fixation ability in an extremely low-nutrient salt culture medium, and its carbon fixation ability is significantly improved under the condition of only adding an inorganic carbon source NaHCO3. The Pseudomonas isolated and obtained by the present invention has important scientific significance for improving the soil carbon fixation and sink potential and promoting the high-quality development of the photovoltaic industry in rocky desertification vulnerable areas.

The invention provides a karst rocky desertification side slope ecological restoration method which comprises the following steps: selecting a rocky desertification side slope region, generating a spherical region range based on geographic coordinates, and recording center coordinates of a target side slope; the method comprises the following steps: acquiring vegetation coverage, height and type distribution data based on remote sensing data and field sampling, and acquiring wind speed, wind direction, soil element distribution, precipitation, runoff, vegetation seed bank quantity, seed bank soil humidity, seed particle size distribution and type distribution data at the same time; generating a wind power field function according to the wind speed and wind direction data, analyzing the soil element content, calculating the total rainwater amount and the total runoff amount, and generating the number of effective vegetation seeds; integrating the parameters to construct a carbon sequestration and slow release model, and outputting a carbon cycle model. According to the method, the carbon sequestration capability of the karst rocky desertification slope ecosystem can be accurately evaluated, the dynamic monitoring and optimization of the ecological restoration effect are realized, and the ecological restoration efficiency and the regional ecological stability are improved.

The present invention relates to the technical field of microbial carbon fixation, in particular to a strain of Dietzia natronolimnaea GD-1 and its application in carbon fixation and phosphorus solubilization. The present invention provides a strain of Dietzia natronolimnaea GD-1 with a preservation number of CGMCC No. 31728. The Dietzia natronolimnaea GD-1 provided by the present invention is a carbon-fixing bacterium isolated from the soil between fixed plates in a salinized photovoltaic field area, having the ability to fix atmospheric carbon dioxide. At the same time, it has the ability to dissolve phosphorus, providing strain resources for enhancing the carbon sequestration and emission reduction capacity of salinized soil, providing technical support for in-depth understanding of the microbial regulation process of the occurrence form of nutrients in salinized soil, laying a foundation for proposing soil microbial improvement techniques in photovoltaic field areas, and promoting the high-quality development of the photovoltaic industry in fragile salinized areas.

The application relates to a kind of soil carbon fixation and emission reduction field determination method and device, method includes to the organic carbon detection of sampling hole, microorganism activity detection, bulk density detection and temperature and humidity detection, and the concentration change of carbon dioxide and methane in sampling hole is monitored, to determine carbon dioxide and methane emission flux;Then the emission flux is corrected once using the microorganism activity detection result;According to the total amount of soil carbon storage of organic carbon detection result, bulk density detection and temperature and humidity detection, the emission flux of primary correction is corrected twice using the total amount of soil carbon storage, finally, based on the emission flux of secondary correction, determine carbon fixation amount, and determine emission reduction potential index in combination with emission amount.The present application can not only improve detection efficiency and precision, but also simple structure, easy to operate.

The invention discloses an intelligent accounting and prediction method and system for carbon sequestration and emission reduction of biochar based on multi-factor coupling, and the method comprises the steps: S1, carrying out the calculation of the carbon sequestration and emission reduction of biochar under the conditions of the same environment parameter matrix, the same period and the same detection frequency; respectively collecting reference data of blank soil samples without biochar and detection data of multiple groups of mixed soil samples with different biochar addition proportions, and collecting corresponding biochar background data; s2, calculating an environmental parameter coupling correction coefficient and a soil physical and chemical parameter correction coefficient, calculating the carbon sequestration emission reduction amount of a single group of mixed soil samples in combination with charcoal background data, and performing statistical verification on multiple groups of samples; s3, constructing a time sequence-multiple regression coupling prediction model based on the accounting carbon sequestration emission reduction and the environmental parameter matrix, and predicting future carbon sequestration emission reduction; according to the invention, dynamic accounting and long-term trend prediction of carbon sequestration emission reduction based on multi-source real-time detection data are realized.

The application discloses a kind of based on carbon source-sink and biological process's preferential protection area demarcation method, comprising: obtaining the multi-source remote sensing data of research area, generates the ecological resistance surface of research area;Based on circuit theory extraction ecological corridor and ecological node, construct the static ecological network of source-corridor-node structure;For the spatio-temporal heterogeneity characteristics of ecological source, the supply and demand of carbon fixation service of ecological source are calculated;Carbon fixation service as important ecological resources, according to the characteristics of biological migration from low resource habitat to high resource habitat, compare the supply and demand ratio of carbon fixation service between ecological source, to determine the trend of ecological corridor, calculate the flow radius of ecological source carbon sink supply area, according to flow radius determine the biological flow relationship between ecological source, divide ecological source into carbon source protection area and carbon sink protection area.

The invention belongs to the technical field of microalgae carbon sequestration, and particularly relates to a light energy weight self-adaptive microalgae internal and external light source complementary carbon sequestration system, which comprises a light culture assembly made of a transparent material and used as a container for containing algae liquid; the light supplementing assembly is arranged in the light culture assembly; the detection system is used for detecting illumination intensity data, illumination angle data, algae liquid biomass concentration data and light field distribution data in the light culture assembly; the control system is electrically connected with the detection system and the light supplementing assembly, and the control system adjusts the illumination intensity of the light supplementing assembly according to the illumination intensity data, the illumination angle data, the light field distribution data and the algae liquid biomass concentration data. According to the system, the light quality and the light intensity of a light source are accurately regulated and controlled by predicting the light field distribution in the light culture assembly and adjusting the light supplementing intensity of the light supplementing assembly, so that light field reconstruction is realized, stable carbon sequestration of microalgae is assisted, and high-quality target carbon neutralization is realized.

The invention relates to an intertidal zone benthic microalgae multispectral self-adaptive carbon sequestration rate in-situ monitoring system and method, the system comprises a reactor used for containing intertidal zone sediments, the top of the reactor is covered with a cover plate, and the cover plate is provided with an LED lamp; a through hole is formed in the side wall of the reactor, an electrode penetrates through the through hole, and the other end of the electrode is electrically connected with a monitor; a micro-motor system is further arranged on the side wall of the reactor, and the micro-motor system is electrically connected with the LED lamp so as to control on and off of the LED lamp; a water changing opening is further formed in the side wall of the reactor, and the water changing opening is electrically connected with the micro-motor system so as to control opening and closing of the water changing opening; the scheme provided by the invention has the advantages that the method is not influenced by the environment, and the carbon sequestration rate of the benthic microalgae can be measured at high precision in any adverse environment.

The application discloses a high-efficiency carbon fixation microalgae breeding device, and relates to the technical field of carbon fixation microalgae breeding.The device comprises an elongated pool, a partition plate is arranged at the middle position of the elongated pool, so that a loop-shaped channel in the shape of a long strip is formed in the elongated pool, bottom plates are arranged in the two parallel straight channels of the loop-shaped channel, the upper surfaces of the bottom plates are arranged in an inclined manner, and the inclined directions of the two bottom plates are opposite.Two liquid lifting mechanisms are arranged at the high end positions of the two bottom plates respectively, and are used for lifting the algal liquid in the loop-shaped channel to the high end of the bottom plate, so that the algal liquid flows downward along the upper surface of the bottom plate automatically.Two groups of disturbance mechanisms are arranged on the upper surfaces of the two bottom plates.The algal liquid is driven to form a turbulent state by the bidirectional inclined bottom plates, the liquid lifting mechanism and the disturbance mechanism, the problems of surface light inhibition and bottom dark area are reduced, and the light energy utilization efficiency of the microalgae is improved significantly.

The invention relates to the technical field of carbon and nitrogen fixation, and discloses a carbon and nitrogen fixation system based on cooperation of an optical nano material and microorganisms and a construction method of the carbon and nitrogen fixation system. The system comprises a carbon fixation microorganism, a nitrogen fixation microorganism and a TiO2 / CdS heterojunction nano material. The carbon sequestration and nitrogen fixation system based on synergism of the optical nanomaterial and the microorganisms is formed through the carbon sequestration microorganisms, the nitrogen fixation microorganisms and the TiO2 / CdS heterojunction nanomaterial, and the system can remarkably improve the carbon and nitrogen circulation efficiency and shows excellent performance in the aspects of photocatalytic hydrogen production and carbon dioxide fixation. Verification shows that compared with a single system, the hydrogen yield, the carbon dioxide fixation rate and the nitrogen reduction conversion rate of the carbon fixation and nitrogen fixation system in which the photonanomaterial and the microorganisms are coordinated are increased by 85%, 3 times and 2 times respectively.

The present invention relates to the field of human-computer interaction technology, and specifically to an integrated system for soil science exhibitions and interactive experiences, including: capturing a dynamic change curve of the carbon release rate of soil samples; detecting the dynamic changes of isotopes during the decomposition process through a mass spectrometer to generate carbon decomposition path data; using a machine learning algorithm to construct a soil carbon sequestration prediction model for soil carbon sequestration capacity; supporting users to input different environmental parameters to predict carbon fixation and carbon release in the soil in the future; displaying the entire process from plant residue decomposition to carbon storage and then to carbon release; supporting users to adjust environmental parameters through gesture interaction through a visual interface to observe the dynamic changes of the carbon cycle under different environmental conditions; the present invention realizes a hierarchical dynamic display and interactive dynamic response of the soil carbon cycle, visualizes the complex carbon cycle process, and provides a new model for soil science exhibitions, education, and scientific research applications.

Methods and agricultural formulations for the cultivation of plants such as broad acre crops, fruits and vegetables, perennial tree crops, and ornamentals are described. The methods include contacting the plant with a furanone compound according to Formula I, II, III, IV, V, VI, VII, VIII, IX, X, XI, XII, XIII, or XIV as described herein, or a salt or solvate thereof. The methods can provide cultivated plants exhibiting reduced levels of non-photochemical quenching (NPQ), higher levels of carbon fixation, higher levels of carbon storage, increased quantum efficiency, and / or increased stomatal conductance, leading to increased biomass and / or increased crop yields. Furanone compounds and agricultural formulations containing the compounds are also described.

To provide a carbon fixation system that enables reduction of carbon dioxide emissions resulting from organic matter.SOLUTION: A carbon fixation system 1 is configured to fix methane M, generated by fermentation of organic matter O, as inorganic carbon C. The carbon fixation system 1 comprises a biogas production apparatus 2 for producing a biogas B containing methane M by fermenting the organic matter O, and a carbon fixation apparatus 3 for fixing the methane M, derived from the biogas B, as inorganic carbon C on a surface of a treatment target T.SELECTED DRAWING: Figure 1

The application discloses a screening method of a biochar modifier suitable for waste ionic rare earth tailing area soil emission reduction and carbon fixation, which comprises the following steps: (1) selecting different biochars, and determining physical and chemical properties of the biochars; (2) performing soil culture test, adding the different biochars into soil by adopting indoor constant-temperature and constant-humidity culture alkali absorption method, and performing soil respiration test determination; (3) calculating soil organic carbon mineralization properties of each group in different culture time sections; and (4) when the soil organic carbon mineralization rate is stable, analyzing the correlation between the soil organic carbon cumulative mineralization amount and the physical and chemical properties of the biochar. The application improves the soil emission reduction and carbon fixation capacity of the waste ionic rare earth tailing area, and also obtains an optimal reference range of the physical and chemical properties of the biochar, thereby providing a theoretical basis for screening the biochar with weak soil organic carbon mineralization in the waste ionic rare earth tailing area. Moreover, the biochar also has a certain effect on the improvement of soil fertility.

The application provides a soil carbon fixation and emission reduction method, comprising the following steps: mixing biomass, a flame retardant and water to activate the biomass, to obtain biomass activation product; pyrolyzing and carbonizing the biomass activation product, to obtain biochar precursor after cooling; processing the biochar precursor to have a particle size less than or equal to 300 nm, to obtain biochar; laying the biochar on a soil surface layer to obtain a biochar covering layer with a thickness of 1.0-1.5 cm; and plowing a surface soil layer with a depth of 0-20 cm to mix the surface soil layer with the biochar covering layer. The particle size of the biochar prepared by the application is small, i.e. less than or equal to 300 nm, so the biochar has a large specific surface area, and when the biochar with small particle size is applied to soil, the emission of soil CO2 can be significantly reduced, so that the carbon fixation and emission reduction effect of the biochar is improved.

The invention discloses a vibration reduction, energy collection and carbon sequestration integrated ecological space structure system, belongs to the field of civil engineering disaster prevention and reduction and new energy, and is suitable for large-span engineering. The system comprises a main body framework, a tuned mass damper assembly, a greening system, a heliostat energy collecting system and a self-adaptive lighting window. The main body framework is composed of the steel pipes and the rubber shock insulation support, and bearing and shock insulation are both considered. The tuned mass damper takes a greening system as a mass block, vibration reduction is realized by combining a two-way superimposed damping structure, carbon reduction and carbon sequestration are realized by green plants, and rainwater is adjusted by an irrigation and drainage system. The heliostat energy collecting system efficiently condenses light through a reflecting mirror and the like, so that the illumination energy consumption is reduced; the self-adaptive lighting window uses thermochromic hydrogel to regulate and control temperature and light. While space use is guaranteed, the shock resistance and carbon reduction performance of the structure are improved, the cost is reduced, and a new scheme is provided for green and intelligent development of the space structure.

The invention discloses a method for preparing a graphene material by taking CO2 as a carbon source, which comprises the following steps: 1) separating, purifying and carbonizing a cultivated diatom colony to obtain a carbon-based precursor; loading the carbon-based precursor in a transition metal matrix to obtain a transition metal loaded carbon-based precursor; and (2) by taking the transition metal loaded carbon-based precursor as a cathode and cooperating with a conductive anode, inserting the cathode and the anode into a CO2 adsorbent, carrying out electrochemical reaction under the actions of CO2 atmosphere, high temperature and electric field to obtain a graphene crude product, and washing, carrying out suction filtration and drying to obtain the graphene material. According to the method, eutrophicated algae and captured CO2 are taken as raw materials, and an electrochemical process based on high temperature and electric field conditions is combined, so that the synergistic advantages of biological carbon sequestration and electrochemical conversion are fully exerted, the utilization efficiency of CO2 is remarkably improved, and formation of a graphene product with rich morphology and relatively large specific surface area is promoted; the related raw materials are low in cost, the process is simple, and a green material synthesis path with low energy consumption and high atom economy is constructed.

The application discloses an optimization design and operation method of a negative-carbon ecological light storage straight-flexible building, and comprises the following steps: S1, constructing a negative-carbon ecological light storage straight-flexible building model structure; S2, analyzing zero-carbon factors, carbon-increasing factors and carbon-reducing factors of the negative-carbon ecological light storage straight-flexible building in a running process according to the constructed negative-carbon ecological light storage straight-flexible building model structure; S3, defining a total carbon emission target function of the negative-carbon ecological light storage straight-flexible building according to the fact that the overall building carbon emission is less than 0; S4, defining a constraint condition; S5, defining a decision variable; and S6, solving a configuration and a running scheme of the negative-carbon ecological light storage straight-flexible building by using a solver. The application realizes the optimization design and operation method of the overall building "negative carbonization" by comprehensively optimizing and utilizing three parts of a carbon-increasing energy supply module, a zero-carbon energy supply module and a carbon-reducing module, and finally realizes the carbon fixation capacity of the green plants.

The present invention relates to the technical field of microbial carbon fixation, in particular to a novel Paenibacillus sp. GD-2 and its application in carbon fixation. The preservation number of the Paenibacillus sp. GD-2 of the present invention is CGMCC No. 31835. The Paenibacillus sp. GD-2 provided by the present invention is a potential new species in the genus Paenibacillus isolated from the soil between the fixed plates in a salinized photovoltaic field area. It has dual carbon fixation capabilities, can convert carbon dioxide in the atmosphere into carbonate minerals, and grow by converting carbon dioxide into its own biological carbon (organic carbon). It can grow under the condition of only containing atmospheric carbon dioxide, and can significantly improve its growth rate by using NaHCO3. It does not require additional carbon sources and electron donors, reducing the carbon fixation cost, which is of great significance for enhancing the potential of soil carbon sequestration and sink, promoting the high-quality development of the photovoltaic industry in salinized vulnerable areas, and alleviating global warming.

The invention relates to the technical field of medical carbon neutralization, in particular to a deduction and calculation method for medical voluntary carbon neutralization. The method comprises the following steps that key information is obtained, and the total carbon emission of a patient is calculated in combination with carbon emission factors in historical data. According to the method, the local climate mean value is obtained to calculate the climate correction factor, the carbon fixation amount of a single plant is corrected in combination with the carbon dioxide equivalent corresponding to fixed carbon in a specific year, then the required planting number of each tree species is calculated, whether the tree species are the optimal tree species is judged according to the required planting number of the tree species and the survival rate of each tree species, and the required planting number is accurately calculated. The planting tree species and number are reasonably selected and distributed, resource waste caused by blind planting is avoided, the resource utilization rate is improved, meanwhile, in the medical voluntary carbon neutralization process, the optimal tree species are accurately screened out, fluctuation of the carbon sequestration amount caused by frequent death of the tree species with the low survival rate is avoided, and the stable carbon sequestration effect is achieved; and the stability of the carbon sequestration effect is improved.

The application discloses a forward osmosis reduction concentration coupled microalgae carbon fixation complementary fusion system and method, and relates to the field of water treatment and carbon fixation. The system comprises a forward osmosis device and a microalgae carbon fixation device. The forward osmosis device comprises a forward osmosis membrane assembly and a feed liquid side and a driving liquid side separated by the forward osmosis membrane assembly. The microalgae carbon fixation device comprises a microalgae photobioreactor. Salt-resistant microalgae are used in the microalgae photobioreactor, and a magnesium chloride solution or a sodium chloride solution is used as microalgae growth liquid. Saline industrial wastewater enters the feed liquid side and, under the action of osmotic pressure, enters the driving liquid side through the forward osmosis membrane assembly to obtain water production. The growth liquid with increased concentration after the growth of microalgae in the microalgae photobioreactor enters the driving liquid side as driving liquid, and the water production dilutes the driving liquid and then returns to be used as microalgae growth liquid again. The application realizes energy saving, water saving and carbon fixation of microalgae while completing raw water treatment process, improves the utilization rate of wastewater resources, and further improves the CO2 absorption rate during microalgae carbon fixation.