38 results about "Carbon stock" patented technology

The invention relates to a method and a system for quantitatively estimating carbon reserves of a native coastal wetland ecosystem. The method comprises the following steps: completing native coastalwetland mapping by adopting multi-source and multi-temporal remote sensing data; obtaining native coastal wetland soil and vegetation samples by adopting a traditional sample plot and quadrat investigation method, and realizing soil carbon reserve space inversion by adopting a geographically weighted regression method; adopting a remote sensing technology to realize biomass inversion of the nativecoastal wetland, and combining a biomass carbon coefficient to realize vegetation carbon reserve estimation of the native coastal wetland; and finally, estimating the carbon reserves of the native coastal wetland by combining the soil carbon reserves and the vegetation carbon reserves. The system and the method break through the limitation that the previous research on the native coastal wetlandis only limited to the estimation of experimental points, greatly improve the estimation precision of the carbon reserves, realize the intuitive and reliable analysis of the spatial heterogeneity andreserves of the carbon reserves, and can provide a scientific basis for the carbon cycle research of an ecological system.

The invention discloses a technical method for dynamic monitoring of carbon storage in forest ecosystems. The steps are: firstly, obtain the forest ecosystem biomass according to the field survey data, and then calculate the forest ecosystem carbon storage from the forest ecosystem biomass; secondly, use the forest ecosystem carbon storage and remote sensing The relationship between the gray value of the image and the factors of the geographic information system, the carbon storage inversion model during the field survey period was established, and the carbon storage of the forest ecosystem during the field survey period was obtained from the inversion; finally, the image during the field survey period was used as a reference image , carry out relative atmospheric correction on regional historical remote sensing images and reference images, and use the carbon stock inversion model during the field survey period to calculate the carbon stock of the forest ecosystem in each historical period of the region, so as to achieve accurate , Rapid dynamic monitoring of forest ecosystem carbon storage.

The invention discloses a management method for a eucalyptus tree man-made forest. The management method comprises the steps of: preparing a forest land: cutting up and retaining logging residues in the forest land, performing soil preparation, then digging plant holes, wherein during arrangement of the plant holes, every two narrow rows and one wide rows form a group, multiple same groups are arranged in sequence, and after the plant holes are dug, an organic fertilizer is applied to each plant hole; performing forestation: selecting clone eucalyptus trees and native tree species to perform forestation, planting the eucalyptus trees on the narrow rows, and planting the native tree species on the wide rows; performing tending after forestation; performing fertilization: and performing cutting and constructing a multiple layered forest. According to the management method disclosed by the invention, by virtue of the means of adjusting the structure of the tree species, improving fertilizing and tending manners and updating a cutting mode, the productivity and carbon stock of the eucalyptus tree man-made forest are significantly improved, the capabilities of emission reduction and sink increment of the eucalyptus tree man-made forest are increased, the economic benefit and ecological benefit of the eucalyptus tree man-made forest are improved, the forest land is fully utilized, water and soil losses and land capability decline are effectively prevented, and sustainable management of the eucalyptus tree man-made forest is realized.

A method for developing new-climate economy and realizing global net zero carbon emission comprises steps of selecting excellent and high-yield biological kinds and repeatedly harvesting in unit time to increase biological carbon catching amount, planting trees, irrigating and planting weeds to form a multi-coverage composite ecological system to expand plant carbon storage amount, improving a ploughing way, utilizing biological fertilizers and improving soil carbon storage amount, producing carbon products and biological products in a bio-manufacturing way and expanding biological carbon sealing amount, breeding high-yield aquatic organisms to increase hydrosphere carbon conversion amount, developing animal husbandry to expand animal carbon transmission amount, collecting organisms to fill and bury to limit atmosphere total carbon amount, replacing fossil fuel by clean energy to control atmosphere carbon increase amount, conserving energy and reducing consumption and reducing man-made carbon emission, comprehensively developing and utilizing atmosphere carbon resource, building a manual carbon stock to create atmosphere carbon dividing amount. Through ways of carbon capture, storage, sealing, conversion, transmission, limit, control, decrease and utilization, global net zero carbon emission can be realized; and ecological, environmental, resource-related, economic and climatic problems can be solved.

The invention discloses a method for enhancing ocean carbon sink. According to the method, CO2 is absorbed through photosynthesis of phytoplankton to increase ocean carbon sink. The method includes the specific steps that a specially-made artificial flow building device is utilized to generate upwelling so as to lift abundant nutritive salt seawater in deep ocean up to the surface euphotic layer, surface phytoplankton is subjected to mass propagation (even red tide is caused) and participates in photosynthesis, and a great amount of CO2 is converted into organic matter in the body of the phytoplankton through the photosynthesis; then the artificial flow building device is utilized to generate downwelling so as to rapidly absorb the phytoplankton into the deep ocean, the phytoplankton dies rapidly in a low temperature environment without light, and carbon sinks to the seabed along with the dead living bodies and is stored in an ocean carbon library. According to the method, propagation of the ocean phytoplankton is promoted, and the phytoplankton is made to sink to the seabed rapidly to increase the ocean carbon sink amount, so that the concentration of CO2 in the atmosphere is effectively lowered, and the crisis of climate warming is relieved. The invention further discloses the artificial flow building device for enhancing ocean carbon sink.

The invention discloses a method for improving the carbon fixation and carbon sink enhancement capabilities of a bamboo forest. The method includes the following steps: 1, biological carbon preparation, wherein crop straw, pruned branches and animal manure organic biomass are collected, dried, then placed in a biological carbonization furnace respectively, calcined and then carbonized to obtain biological carbon; 2, bamboo forest land selection which includes the steps of building the bamboo forest, transforming low-yield or degraded bamboo forest land and bamboo forest maintenance; 3, fertilization method and fertilization time. According to different characteristics of phyllostachys pubescens forest land, a biological carbon application method and a corresponding management measure are specifically designed so as to improve and fertilize bamboo forest soil and improve the soil productivity, positive effects of carbon sink enhancement and emission reduction are achieved, the resource utilization of forestry and agricultural residues is achieved, the forest soil is improved, the yield and quality of bamboo products are improved, the health level of a bamboo forest soil carbon pool and the health level of the ecological system are improved, and the method has a significant carbon sink function.

A fast metering method for any depth organic carbon reserve of forest soil comprises the steps: determining model parameters by regional soil mechanical sampling and calculating regional any depth organic carbon reserve by using the model. The method has the beneficial effects that by a distribution and metering model of regional forest soil organic carbon, a depth distribution model of the organic carbon of the forest soil in a specific region is established, the organic carbon reserve of soil of different depths is convenient and simple to meter, the workload is small and time and labor are saved.

The invention discloses a method for researching soil organic carbon reserve change based on returning farmland to forest and returning grass. The method comprises the following steps: acquiring a previous soil type distribution diagram and a land utilization type distribution diagram of a research area; calculating the average organic carbon density of each type of soil and the organic carbon reserve of the research area based on the soil type distribution diagram and the soil type attribute recorded by the soil type of the research area; calculating the average organic carbon density of thesoil under different land utilization modes; acquiring a land utilization type distribution diagram of the research area in the latest period; based on the land utilization type distribution diagramsin different periods, the land utilization type change situation of the research area is obtained; and calculating the soil organic carbon reserve of the research area in the latest period based on the change condition of the land utilization type and the soil average organic carbon density in different land utilization modes, and evaluating the soil carbon sequestration effect of the research area after the measures of returning farmland to forests and returning grass are taken. The method can estimate and compare the soil organic carbon reserves after the land utilization changes in different periods, and improves the estimation precision.

The invention relates to the technical field of forest analysis. The invention and particularly relates to a method for analyzing a carbon sink structure of a small-khingan acicular-broad-leaved mixedforest based on a carbon reserve distribution state. The method comprises the following steps: 1, preparing raw materials; setting a standard sample plot setting, adopting a sample method and an arbor positioning method to carry out are adopted. Sspecies identification, listing and positioning are carried out on arbor and small arbor plant individuals; measuring the tree height, the diameter atbreast height, the height under branches and the crown breadth; calculating carbon reserves are calculated, acquiring the spatial distribution pattern differentiation characteristic of the forest carbon reserves is obtained according to the carbon reserves, analyzing the sample plot spatial structure is analyzed through the vertical projection area, the mixing angle, the angular scale and the competition index, analyzing the carbon reserve distribution state is analyzed, discussing the variation situation of carbon reserve spatial distribution is discussed, and providing the carbon reserve spatial distribution characteristics of the coniferous and broadleaf mixed forest are provideds. The method invention has important significance for mastering the relationship between the forest space structure and the carbon reserves, and provides reference for discovering the defects existing in the development of the forest carbon reserves and searching for a higher sink increasing space.

The invention provides a trunk surface model-based trunk volume obtaining method, which comprises the steps of (1) vertically segmenting a trunk point cloud; (2) gradually carrying out angular partitioning on various vertical sub-segments and calculating contour points of angular partitions; (3) repairing the missing contour points of the angular partitions; (4) building a trunk surface model; and (5) calculating the trunk volume according to the trunk surface model. The accurate contour points of the trunk are obtained through vertical segmenting and angular partitioning, the trunk surface model built on the contour points of the trunk is capable of really reflecting the uneven and curved continuous change process of the trunk and really reflecting the surface profile of the trunk and is not limited by the heights of the sub-segments when the trunk volume is calculated, and basic data are provided for accurate extraction of trunk biomass and carbon stocks and trunk volume optimization.

The invention discloses a soil organic carbon density and reserve estimation method, and belongs to the technical field of soil measurement, and the method comprises the following steps: setting a soil sample point position, collecting a section sample of a soil body, and measuring the thickness of each soil layer at the same time; testing the organic carbon content of each soil layer, and the volume percentage and volume weight index of gravels greater than 2mm; calculating the soil organic carbon density per unit centimeter depth of each soil layer sample, and establishing a linear regression model of the soil organic carbon density per unit centimeter depth and the soil organic carbon content; and based on the established linear regression model, respectively establishing a function relationship between the soil organic carbon density and the organic carbon content and a function relationship between the organic carbon reserve and the organic carbon content. According to the invention, the soil carbon density and the carbon reserve are directly, rapidly and accurately estimated through the organic carbon content, and the availability of soil organic carbon reserve data is improved.

The invention provides a carbon reserve influence estimation method and device, electronic equipment and a storage medium, and relates to the field of carbon reserve estimation. Comprising the following steps: firstly, acquiring to-be-processed information in a preset area, wherein the to-be-processed information comprises periodic average temperature/periodic average ground temperature, a digital elevation model, a slope, a slope direction, longitude and latitude information; then, determining a periodic average temperature/periodic average ground temperature estimation model according to the to-be-processed information; according to the estimation model, determining the periodic average temperature/periodic average ground temperature of each reference point in the preset area; determining a permafrost region in the preset region according to the periodic average temperature/periodic average ground temperature of each reference point; and determining the contribution rate of the permafrost region change to the carbon reserve change. According to the invention, the permafrost region can be accurately determined, and the influence of permafrost degradation on the change of carbon reserves can be determined.

The invention discloses a coastal wetland ecosystem carbon reserve regulation management system based on data analysis, relates to the technical field of carbon reserve regulation management, solves the technical problem that in the prior art, a regulation mode cannot be reasonably and accurately obtained during carbon reserve regulation, and analyzes influence factors of a corresponding wetland region to obtain a regulation result. Whether influence factors exist in the current wetland region carbon reserves or not is judged, if yes, adjustment is carried out according to the influence factors, otherwise, adjustment is carried out according to unqualified signals, and the adjustment efficiency and accuracy of the wetland region can be improved; the adjusted wetland area is subjected to performance detection, and the qualification of carbon reserve adjustment is judged, so that the carbon balance performance of the wetland area is accurately analyzed, and the efficiency of carbon reserve adjustment is improved; and the carbon reserve of the wetland area can be accurately controlled.

The invention relates to an intertidal zone mangrove forest, salt marsh and seaweed bed vegetation-covered coastal wetland soil carbon reserve investigation method, which comprises the following steps of layering and weighing collected columnar soil samples when estimating the carbon reserve, then taking out a first sample and a second sample from the samples in each layer, obtaining the dry weight of a sample containing fine roots by using the first sample and measuring the organic carbon/inorganic carbon/total carbon content of soil without fine roots, obtaining the total mass of the fine roots of each layer by using the second sample, subtracting the total weight of the fine roots from the total dry weight of the sample of each layer to obtain the mass of the sample soil, and further calculating the reserve of the organic carbon/inorganic carbon/total carbon in the soil. According to the method, the influence of plant fine roots in soil carbon reserve investigation is eliminated, the problem of repeated calculation of fine root organic carbon reserves in soil carbon reserve investigation is effectively avoided, and a more accurate investigation method is provided for research of coastal wetland carbon reserves.

The invention discloses a wetland vegetation carbon sequestration rate prediction method based on the relation between key water regimen variables and vegetation carbon sequestration rates. The method comprises the following steps: S1, carrying out remote sensing estimation on the wetland vegetation carbon sequestration rate based on a remote sensing observation vegetation index EVI time sequence image; s2, calculating hydrological variables of wetland flooding duration, flooding depth, flooding frequency and flooding starting and ending time with important significance on wetland vegetation according to the observed water level data and a digital terrain elevation model (DEM); s3, calculating a response curve of the vegetation carbon sequestration rate to each hydrological variable by using a Gaussian mixture model, and obtaining a key water regimen variable with the highest interpretation degree on the wetland vegetation carbon sequestration rate; s4, predicting the wetland vegetation carbon sequestration rate after the key water regimen variables are changed by comparing the key water regimen variables in the prediction stage with the key water regimen variables in the observation stage. The method is suitable for a wetland ecosystem with relatively high water level variation amplitude, wherein the system has relatively small actual measurement data of ground carbon stock and a dominant effect of water regimen on vegetation; and the method is simple and convenient to operate and convenient to popularize and apply.

The invention discloses an ecological protection red line delimiting method for a carbon sequestration function of a terrestrial ecosystem, and the method comprises the steps: selecting a typical terrestrial ecosystem as an evaluation object in a land area range of a research area; collecting data of the evaluation object related to the carbon sequestration function; constructing a land ecosystem carbon sequestration function importance evaluation index from three dimensions of carbon reserve, carbon sink and carbon sequestration potential, determining an index grading assignment standard, and dividing the evaluation index into a plurality of grades; evaluating the importance of carbon reserves, carbon sequestration and carbon sequestration potential of the terrestrial ecosystem, and respectively extracting pattern spots with the highest importance levels of the three; performing spatial superposition and combination to generate extremely important pattern spots with a comprehensive carbon sequestration function; and carrying out aggregation and converting into a vector range of the ecological protection red line. According to the method, the problem that the protection red line of the carbon sequestration function of the terrestrial ecosystem cannot be accurately delimited can be solved, and scientific and technological support is provided for expanding ecological protection red line delimitation, positively coping with global climate changes and achieving a carbon neutralization target.

The invention discloses a farmland soil organic carbon reserve estimation method and system in combination with model and time sequence sampling. A target area is classified and divided, model simulation is combined to obtain soil organic carbon reserves without considering land utilization mode changes, and then through time sequence sampling, an actual soil organic carbon reserve after considering the land utilization mode change is calculated and obtained. By combining the model method and the time sequence sampling method, the dynamic change of the soil organic carbon reserve can be more efficiently estimated in areas with large land utilization mode change.

The invention discloses a road area vegetation carbon reserve estimation method and system and a storage medium. The method comprises the following steps: identifying a vegetation distribution range of a road area; assigning a unit area region in the distribution range of each type of vegetation as a sample plot of the corresponding type of vegetation; estimating the biomass of the sample plot of each type of vegetation and the average carbon content of each type of vegetation; extracting a vegetation biomass factor feature map of the highway area; acquiring data of vegetation biomass factors of the sample plots of various types of vegetation through the vegetation biomass factor feature map; taking the data and biomass of the vegetation biomass factors of the sample plots of various types of vegetation as training samples; based on the training sample and the vegetation biomass factor feature map, calculating a vegetation biomass distribution map through a GWR-Adaboost model; and according to the vegetation biomass distribution diagram and the distribution range of each type of vegetation, calculating the vegetation carbon reserve of the road area to be measured. According to the method, the phenomenon of overestimation or underestimation of the road region vegetation biomass is reduced, so that the estimation result is more consistent with the road region vegetation distribution condition.

The invention discloses a method for treating flammulina velutipes cultivation waste and a product and application thereof, and relates to the technical field of biological agriculture. The method comprises the following steps: drying the flammulina velutipes cultivation waste, and carbonizing and pyrolyzing the flammulina velutipes cultivation waste in an inert gas atmosphere to obtain biochar; the flammulina velutipes cultivation waste is flammulina velutipes cut roots or flammulina velutipes residues. Compared with a traditional treatment method, the method for treating the flammulina velutipes cultivation waste has the advantages that resource waste can be reduced, environmental pollution can be reduced, and the additional value of agricultural production can be increased; the biochar prepared by the method disclosed by the invention is high in stability and carbon content, has positive significance on'carbon neutralization 'when being applied to farmland, and has great contribution to carbon reserve in soil after entering the soil.

The disclosure relates to a survey method of soil carbon stock in vegetated coastal wetlands, which excludes the influence of plant's fine roots when estimating the soil carbon stock, and effectively avoids double counting organic carbon stock of the fine roots in soil carbon stock surveys. At the same time, this method does not require bulk density calculation, which reduces the influence of sample volume compression during sample processing when calculating bulk density and provides a more accurate survey method for the study of coastal wetland carbon stock.

The invention discloses a wetland vegetation carbon sequestration rate remote sensing estimation method based on a reconstructed vegetation index time sequence image. The method comprises the following steps: S1, reconstructing an enhanced vegetation index (EVI) image time sequence with high space-time continuity in a wetland vegetation distribution area; S2, establishing an optimal wetland vegetation carbon stock remote sensing inversion model based on measured data and EVI observation values of corresponding pixels in the same period; S3, reconstructing the annual dynamic change process of the wetland vegetation carbon stock in combination with the optimal wetland vegetation carbon stock remote sensing inversion model and the reconstructed EVI time sequence image; and S4, calculating the annual cumulative growth amount of the carbon stock of the wetland vegetation pixel by pixel according to a cumulative stock method to obtain the annual carbon sequestration rate of the wetland vegetation. The method is suitable for a wetland ecological system with frequent cloudy and rainy weather and large water level variation, and is simple and convenient to operate and convenient to popularize and apply.

The invention discloses a field straw organic carbon conversion rate calculation method and a calculation system thereof, and relates to an organic carbon conversion rate calculation method and a calculation system. The problems that in the prior art, a 13C marking method is high in cost, and the organic carbon conversion rate calculated through a method for calculating the straw organic carbon conversion rate through soil of the same volume in a traditional field test has a negative value are solved. The method comprises the following steps: calculating the initial organic carbon reserve of the monitored soil; calculating the current organic carbon reserve of the monitored soil; calculating the organic carbon reserve variation of the monitored soil according to the initial organic carbon reserve and the current organic carbon reserve of the monitored soil; and then calculating the organic carbon conversion rate. The calculation system comprises a soil data acquisition module, an initial organic carbon reserve calculation module, a current organic carbon reserve calculation module, an organic carbon reserve variation calculation module and an organic carbon conversion rate calculation module. According to the method, the calculation precision of the straw organic carbon conversion rate under the field test condition is improved, and the calculation cost is reduced.

The invention is suitable for the technical field of marine ecosystems, and provides an organic carbon vertical distribution model distinguishing method and device, a terminal and a storage medium, and the method comprises the steps: obtaining the surface organic carbon concentration of a marine water area, the water body depth of the marine water area and the mixed layer depth of the marine water area; determining different vertical distribution models of the organic carbon in the ocean water area according to the concentration of the organic carbon on the surface layer and the water body depth of the ocean water area; calculating the ratio of the water body depth of the ocean water area to the depth of the mixed layer; and distinguishing the different vertical distribution models according to the ratio. The method can improve the distinguishing precision of the organic carbon distribution in the ocean water area, thereby improving the estimation precision of the organic carbon reserve value in the ocean water area.