Method and system for dynamic measurement of carbon sink in whole process of wetland protection area construction
By constructing a dynamic carbon sink measurement method and system for wetland protected areas, the problems of insufficient coverage, low accuracy, and lack of standardization in existing wetland carbon sink measurement technologies have been solved. This enables high-precision assessment of carbon sinks during construction and quantitative analysis of ecological impacts, supporting ecological compensation and carbon trading in wetland protected areas.
Patent Information
- Application Number
- CN202511420850.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2045-09-30
Smart Images

Figure CN120892661B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of ecological environment monitoring technology, and more specifically, relates to a method and system for dynamic carbon sequestration calculation throughout the construction process of a wetland reserve. Background Technology
[0002] As global climate change becomes increasingly severe, wetlands, as key "carbon reservoirs," possess a carbon storage capacity per unit area far exceeding that of terrestrial ecosystems such as forests, playing an irreplaceable role in regulating global climate. The unique hydrological processes, vegetation community structure, and soil physicochemical properties (such as high organic matter content and anaerobic environment) of wetlands contribute to their outstanding carbon sequestration efficiency and long-term carbon storage potential.
[0003] However, current mainstream carbon sink measurement models and assessment methods are mainly designed for terrestrial ecosystems such as forests, and their direct application to wetland reserves is significantly incompatible. The structure, function, and carbon cycle mechanisms of wetland ecosystems are highly specific, and existing models struggle to accurately characterize their complex carbon source and sink dynamics.
[0004] Production and construction projects (such as road construction, pipeline laying, and ecological restoration projects) carried out within wetland protected areas can cause significant and dynamic disturbances to wetlands, altering hydrology, damaging vegetation, and disturbing soil. Existing assessment methods face the following key bottlenecks in addressing the immediate and ongoing impacts of such construction processes:
[0005] Insufficient coverage: The analysis focuses too much on the carbon pool of aboveground vegetation biomass, seriously neglecting the huge storage potential and disturbance sensitivity of the soil organic carbon pool (including living soil biomass and dead organic matter), which is particularly crucial to the overall carbon sink of wetlands.
[0006] Low accuracy and resolution: Reliance on low spatiotemporal resolution data and static coefficients (such as the default values of the first-level method) leads to high estimation uncertainty (the literature shows that the first-level method can estimate the aboveground biomass carbon pool with an error of ±50%, and the soil carbon pool with an error of even ±90%), which is insufficient to reflect the dynamic changes in carbon sink at a fine scale caused by construction.
[0007] Lack of a comprehensive system and insufficient standardization: In particular, for key blue carbon sink ecosystems such as coastal wetlands, my country has not yet established a unified system of monitoring technical specifications, carbon sink accounting methods, and evaluation standards. The existing fragmented methodologies are unable to meet the international requirements for "measurable, reportable, and verifiable" (MRV) blue carbon sinks, hindering accurate quantification and effective management.
[0008] Existing carbon sequestration measurement methods are categorized into three levels based on accuracy (IPCC framework). Level 1 methods rely on default parameters, severely lack localized data support, exhibit poor regional adaptability, and result in high uncertainty, making them unsuitable as a basis for refined carbon management during construction. While Level 2 and Level 3 methods can be optimized by incorporating local monitoring data, they lack a model foundation specifically designed for wetland construction disturbance scenarios and integrating multi-scale dynamic parameters, leading to poor application performance under the complex conditions of wetland protected areas.
[0009] Therefore, there is an urgent need to develop a targeted, high-precision, and practical carbon sink measurement model and methodology to scientifically, dynamically, and quantitatively assess the carbon sink benefits, carbon loss risks, and comprehensive ecological impacts of various production and construction projects throughout the entire construction process in wetland protected areas. This is not only necessary to fill technological gaps and improve the accuracy of inventory compilation, but also a key technical support for building a unified accounting and management standard system for wetlands (especially coastal blue carbon sinks) in my country. Summary of the Invention
[0010] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a method and system for dynamic carbon sequestration calculation throughout the entire construction process of wetland protected areas. This method offers a more accurate and comprehensive approach to carbon sequestration calculation. By constructing a carbon sequestration calculation model specifically for the entire construction process of production and construction projects in wetland protected areas, this model not only comprehensively considers the uniqueness of the wetland ecosystem, the natural carbon cycle process, and the interference of construction activities on the carbon cycle, but also accurately quantifies the carbon sequestration of the wetland ecosystem at different stages before, during, and after project construction. It fully considers the special characteristics of the wetland ecosystem and the interference of the construction process on its carbon cycle, thereby enabling a scientific and quantitative assessment of the carbon sequestration benefits and ecological impacts throughout the entire construction process. Compared with existing technologies, this application not only fills the gap in the field of wetland carbon sequestration calculation, but also significantly improves the accuracy and resolution of carbon sequestration calculation and reduces estimation uncertainty through the application of high spatiotemporal resolution data and dynamic coefficients. Furthermore, it provides key technical support for constructing a unified standard system for wetland carbon sequestration accounting and management. This invention provides a scientific basis for ecological compensation, project planning, and carbon trading in wetland protected areas, helping to achieve coordinated development of wetland ecological protection and production construction, and thus playing an important role in addressing climate change and promoting sustainable development.
[0011] To achieve the above objectives, one aspect of the present invention provides a method for dynamic carbon sequestration calculation throughout the construction process of a wetland protected area, comprising the following steps:
[0012] S1: Calculate the potential carbon emissions during the building material production and transportation stage, the construction stage, and the operation stage after the project is completed, to obtain carbon emission accounting results for different stages before, during, and after the project construction.
[0013] S2: Establish a carbon flux model, calculate and obtain a dataset of carbon flux changes in the wetland ecosystem throughout the entire project construction process based on wetland ecological monitoring data, meteorological data, biological physiological parameters and construction activity parameters;
[0014] S3: Integrate the carbon emission accounting results of different stages before, during and after the project construction with the carbon flux change data of the wetland ecosystem during the entire project construction process, construct a comprehensive carbon sink measurement model applicable to the entire construction process of production and construction projects in wetland protected areas, and calculate the total net carbon amount of the project throughout its entire life cycle.
[0015] S4: By comparing and analyzing the actual carbon sink data with the calculation results of the comprehensive carbon sink calculation model, adjust the parameters of the comprehensive carbon sink calculation model or improve the model structure to make the model calculation results closer to the actual situation.
[0016] S5: Apply the revised integrated carbon sink calculation model to the calculation of carbon sinks throughout the entire construction process of production and construction projects in different types of wetland protected areas; compare the model calculation results with those obtained from other authoritative calculation methods to verify the accuracy and reliability of the model.
[0017] Further, step S1 includes collecting carbon emission data of the building material production process, carbon emission data of the material transportation process, direct carbon emission data of the construction phase, and potential carbon emission and carbon sink effect data of the operation phase after the project is completed, based on the project design documents, bill of materials and construction logs.
[0018] Carbon emission accounting results at different stages before, during, and after project construction are calculated using formula (5):
[0019] (5)
[0020] in, for The total carbon emissions generated by human activities at all times, that is, the total carbon emissions at different stages before, during and after the project construction; express Total carbon emissions during the production and transportation of building materials at any given time; It is a time variable; This indicates the total carbon emissions during the construction phase. This indicates the carbon emissions during the operation phase after the project is completed; This refers to the carbon sink effect during the operation phase after the project is completed.
[0021] Furthermore, step S2 includes considering the respiration, photosynthesis, and methane emission processes of the wetland ecosystem, and establishing a carbon flux model by combining meteorological conditions and biological physiological parameters; the time range of the carbon flux model in step S2 covers the entire project lifecycle from construction to operation.
[0022] The carbon flux model was used to simulate the carbon exchange process within the wetland ecosystem and to analyze the dynamic impact of construction activities on carbon flux, thus obtaining a dataset of carbon flux changes in the wetland ecosystem throughout the entire project construction process.
[0023] The respiration process includes vegetation respiration, soil respiration, and aquatic respiration; the meteorological conditions include temperature, precipitation, and light intensity; and the biological physiological parameters include plant photosynthetic rate and respiration rate constant.
[0024] Furthermore, the carbon flux model is used to simulate the carbon exchange process within the wetland ecosystem, and the dynamic impact of construction activities on carbon flux is analyzed to obtain a dataset of carbon flux changes in the wetland ecosystem throughout the entire project construction process; including:
[0025] Based on wetland ecological monitoring data and meteorological data, the biochemical processes of vegetation respiration, soil respiration, water respiration, photosynthesis, and methane emissions are simulated using the carbon flux model.
[0026] By integrating biological and physiological parameters and construction activity parameters, the impact of construction on carbon flux is quantified.
[0027] Numerical modeling tools were used to calculate the magnitude and direction of carbon flux; a dataset of carbon flux changes in the wetland ecosystem during the entire project construction process was obtained, including flux values, spatial distribution, and quantitative indicators of construction impact.
[0028] The construction activity parameters include the degree of vegetation damage and the intensity of soil disturbance.
[0029] The wetland ecological monitoring data includes vegetation cover and soil moisture.
[0030] Furthermore, the carbon flux model described in step S2 is expressed by equation (6):
[0031] (6)
[0032] in, Represents the net carbon flux of a disturbed ecosystem, and the net carbon exchange value per unit area of a wetland ecosystem, in units of... Negative values indicate carbon sinks (absorption), while positive values indicate carbon sources (release). It is a time variable; Photosynthetic carbon sequestration, i.e., the amount of carbon fixed by vegetation through photosynthesis. The quantity was suppressed by the destruction of vegetation during construction. This refers to carbon emissions from vegetation respiration, that is, carbon released by the plant's own metabolism. The quantity is positively correlated with temperature; This refers to soil respiration emissions, which are released by microorganisms decomposing organic matter. The quantity is increased due to construction disturbance; This refers to respiratory emissions from water bodies, specifically the emissions released during respiration by aquatic microorganisms and plankton. Quantity, a process unique to wetlands (such as marsh water bodies). This represents the carbon equivalent of methane emissions, specifically the amount released by methanogenic bacteria in an anaerobic environment. The quantity, converted to GWP. equivalent; The carbon flux is the net effect of construction disturbance, which is the total disturbance of human activities to carbon flux.
[0033] Furthermore, the net carbon flux of the disturbed ecosystem is calculated using equation (7):
[0034] (7)
[0035] in, for The total amount of carbon fixed by wetland vegetation through photosynthesis under constant construction disturbance; for Carbon emissions from vegetation respiration at all times; for Carbon emissions from soil respiration at all times; for Carbon emissions from water bodies during respiration; for Carbon equivalent of methane emissions at any given time; for Carbon flux due to the net effect of construction disturbance at all times;
[0036] The total carbon fixed by wetland vegetation through photosynthesis under construction disturbance is calculated using equation (8):
[0037] (8)
[0038] in, for The total amount of carbon fixed by wetland vegetation through photosynthesis at any given time, per unit ; To measure the maximum photosynthetic capacity of the wetland; This is the illumination response function; This is the temperature response function; The rate of vegetation damage caused by construction;
[0039] Carbon emissions from vegetation respiration are calculated using equation (9):
[0040] (9)
[0041] in, for Carbon emissions from vegetation respiration at all times, per unit ; The basic respiration rate constant of vegetation; The sensitivity coefficient of wetland respiration to temperature; This refers to the real-time temperature during the construction process; This is a reference temperature, typically 25℃; The rate of vegetation damage during construction was obtained through remote sensing or on-site sampling.
[0042] Soil respiration carbon emissions are calculated using equation (10):
[0043] (10)
[0044] in, for Carbon emission rate per unit area of soil respiration at any given time, per unit ; The basic respiration rate constant of soil, in units ; The dimensionless perturbation gain coefficient; The soil disturbance intensity is a value between 0 and 1, obtained through remote sensing or field sampling. This is a function of soil disturbance intensity.
[0045] Carbon emissions from aquatic respiration are calculated using equation (11):
[0046] (11)
[0047] in, for Carbon emissions from water respiration at all times, per unit ; is the basic respiration rate constant of the water body.
[0048] Furthermore, the carbon equivalent of methane emissions is calculated using equation (12):
[0049] (12)
[0050] in, To convert to the greenhouse effect Equivalent methane emissions, in units: ; The quasi-methane emission rate per unit time and per unit area, in units of: ; This is a temperature response function, dimensionless, used to quantify the effect of temperature on the activity of methanogens, and is commonly represented by the Arrhenius equation. Let be the water level response function, quantifying the effect of water level changes on the anaerobic environment; 28 represents the GWP. 100 coefficient.
[0051] Furthermore, the carbon flux resulting from the net effect of construction disturbance is calculated using equation (13):
[0052] (13)
[0053] in, express The instantaneous change in net carbon flux caused by construction activities at all times; For construction timing functions; Sensitivity coefficient for vegetation destruction; The rate of damage to newly added vegetation; Soil disturbance sensitivity coefficient, This is to increase the intensity of soil disturbance.
[0054] Furthermore, the comprehensive carbon sequestration calculation model applicable to the entire construction process of production and construction projects in wetland protected areas, as described in step S3, is expressed by equation (15):
[0055] (15)
[0056] in, Instantaneous net carbon flux, unit: ; Net carbon flux of disturbed ecosystems; The total carbon emissions from human activities after unit conversion; of which:
[0057] (14)
[0058] in, This represents total carbon emissions from human activities, in units of: ; Total carbon emissions from human activities, in tons; for Mass conversion factor to carbon; The total wetland area affected by the project, in m²; Time step, unit: hours;
[0059] The total net carbon emissions over the entire life cycle of the project are calculated using formula (16):
[0060] (16)
[0061] in, Net carbon total for the entire lifecycle of the project, in tons; Instantaneous net carbon flux, unit: ; Project start time; Project completion time; The integration interval is in hours, starting from... arrive Total duration.
[0062] A second aspect of the present invention provides a dynamic carbon sequestration calculation system for the entire construction process of a wetland reserve, used to implement the aforementioned dynamic carbon sequestration calculation method for the entire construction process of a wetland reserve, comprising:
[0063] The data collection module is used to collect carbon emission data during the production process of building materials, carbon emission data during the transportation process of materials, direct carbon emission data during the construction phase, and potential carbon emission and carbon sink effect data during the operation phase after the project is completed, based on project design documents, bill of materials and construction logs.
[0064] The carbon emission accounting module is used to calculate the carbon emissions during the production and transportation stages of building materials based on the type and quantity of building materials, energy consumption data during the production process, and energy consumption data of transportation distance and mode of transportation; to calculate the carbon emissions during the construction process by statistically analyzing the usage time and energy consumption of various mechanical equipment and the living energy consumption of construction workers; to calculate the carbon emissions during the operation stage of the project after completion based on the energy consumption and potential carbon sink effect during the operation stage of the project; and to assess the potential carbon sink effect during the operation stage of the project.
[0065] The carbon flux calculation module is used to build carbon flux models, simulate the biochemical processes of vegetation respiration, soil respiration, water respiration, photosynthesis, and methane emissions, integrate biological physiological parameters and construction activity parameters, quantify the impact of construction on carbon flux, and use numerical modeling tools to calculate the magnitude and direction of carbon flux.
[0066] The integrated carbon sink calculation module is used to integrate the carbon emission accounting results at different stages before, during and after project construction and the carbon flux change dataset of the wetland ecosystem during the entire project construction process, and to build an integrated carbon sink calculation model applicable to the entire construction process of production and construction projects in wetland protected areas.
[0067] The model correction and verification module is used to adjust the parameters of the comprehensive carbon sink calculation model or improve its structure by comparing and analyzing the actual carbon sink data with the calculation results of the comprehensive carbon sink calculation model; apply the corrected comprehensive carbon sink calculation model to calculate the carbon sink of production and construction projects in different types of wetland protected areas throughout the entire construction process; and compare the model calculation results with the results obtained from other authoritative calculation methods to verify the accuracy and reliability of the model.
[0068] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:
[0069] (1) The method and system for dynamic carbon sequestration calculation during the entire construction process of wetland protected areas of the present invention uses remote sensing data to classify wetland types, estimate vegetation cover and biomass, estimate soil organic carbon content, monitor carbon flux processes, and detect and monitor wetland changes. It can obtain large-scale, high spatiotemporal resolution data, providing an important basis for assessing the carbon sequestration capacity of wetlands. Specifically designed for the characteristics of wetland ecosystems, including their unique hydrological conditions, vegetation types, and soil characteristics, a dedicated carbon sequestration calculation model has been constructed. It can dynamically and quantitatively assess the carbon sequestration benefits, carbon loss risks, and comprehensive ecological impacts of various production and construction projects in wetland protected areas throughout the entire construction process. It fills the technical gap in the field of carbon sequestration calculation of wetland ecosystems. The model of the present invention not only considers the natural carbon cycle processes of wetland ecosystems, such as respiration, photosynthesis, and methane emissions, but also comprehensively considers the interference of construction activities on the wetland carbon cycle, such as changes in hydrology, damage to vegetation, and disturbance of soil. This comprehensiveness enables the model to more accurately reflect the carbon sequestration changes during the entire construction process of production and construction projects in wetland protected areas.
[0070] (1) The method and system for dynamic carbon sequestration calculation during the entire construction process of wetland protected areas of the present invention improves the accuracy and resolution of carbon sequestration calculation by introducing high spatiotemporal resolution data and dynamic coefficients. Compared with traditional methods that rely on low spatiotemporal resolution data and static coefficients, this method can more accurately reflect the dynamic changes in carbon sequestration caused by construction, thereby reducing the uncertainty of estimation.
[0071] (2) The method and system for dynamic carbon sequestration calculation during the entire construction process of wetland protected areas of the present invention simulates the carbon exchange process within the wetland ecosystem by establishing a dynamic carbon flux model and analyzes the dynamic impact of construction activities on carbon flux. This dynamic simulation capability enables the model to reflect the impact of construction activities on wetland carbon sequestration in real time, providing timely carbon emission and carbon sequestration data for project management. By comparing and analyzing actual carbon sequestration data with model calculation results, model parameters can be adjusted or the model structure can be improved to make the model calculation results closer to the actual situation. This accuracy improves the reliability and applicability of the model. The model of the present invention is not only applicable to theoretical analysis, but can also be applied to the carbon sequestration calculation during the entire construction process of production and construction projects in actual wetland protected areas. By comparing and verifying the results with those of other authoritative calculation methods, the accuracy and reliability of the model have been proven.
[0072] (3) The method and system for dynamic carbon sink measurement during the entire construction process of wetland protected areas of the present invention, by comprehensively considering multiple factors, including meteorological conditions, biological physiological parameters, and construction activity parameters, reduces the uncertainties existing in the prior art and improves the accuracy of carbon sink measurement. The carbon sink measurement model provided by the present invention provides a scientific basis for ecological compensation, project planning and carbon trading in wetland protected areas; this helps to promote the important role of wetland ecosystems in responding to climate change and promote the coordinated development of ecological protection and production construction; the carbon sink measurement model of the present invention can help assess the impact of construction activities on the carbon cycle of wetland ecosystems, provide important data for environmental impact assessment, and help to formulate more effective environmental management and protection measures; the present invention provides a more accurate, comprehensive and dynamic carbon sink measurement method by constructing a carbon sink measurement model specifically for the entire construction process of production construction projects in wetland protected areas, which is of great significance for promoting the protection and rational utilization of wetland ecosystems.
[0073] (4) The dynamic carbon sequestration calculation method and system of the whole process of wetland protection area construction of the present invention aims to build a unified wetland carbon sequestration accounting method and evaluation standard system, which helps to fill the gaps in the existing system and the lack of standardization, and provides technical support for the accurate quantification and effective management of wetland carbon sequestration. Attached Figure Description
[0074] Figure 1 This is a flowchart illustrating a method for dynamic carbon sequestration calculation throughout the construction process of a wetland protection area, according to an embodiment of the present invention.
[0075] Figure 2 This is a schematic diagram illustrating the preliminary impact assessment of the physical and chemical properties of wetland soil during the construction process of a dynamic carbon sequestration method for the entire construction process of a wetland protected area, as described in an embodiment of the present invention.
[0076] Figure 3 This is a schematic diagram illustrating the variation characteristics of soil organic carbon with sampling distance in a method for dynamic carbon sequestration during the entire construction process of a wetland protected area, according to an embodiment of the present invention.
[0077] Figure 4 This is a schematic diagram illustrating the variation of soil pH value with sampling distance in a method for dynamic carbon sequestration during the entire construction process of a wetland protected area, according to an embodiment of the present invention.
[0078] Figure 5 This is a schematic diagram illustrating the variation of soil bulk density with sampling distance in a method for dynamic carbon sequestration during the entire construction process of a wetland protected area, according to an embodiment of the present invention.
[0079] Figure 6 This is a schematic diagram illustrating the variation of soil moisture content with sampling distance in a dynamic carbon sequestration calculation method for the entire construction process of a wetland protected area, according to an embodiment of the present invention.
[0080] Figure 7 This is a schematic diagram of a dynamic carbon sequestration measurement system for the entire construction process of a wetland protection area, according to an embodiment of the present invention.
[0081] Figure 8 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. Detailed Implementation
[0082] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.
[0083] like Figure 1 As shown, one aspect of the present invention provides a method for dynamic carbon sequestration calculation throughout the construction process of a wetland reserve, comprising the following steps:
[0084] S1: Calculate the potential carbon emissions during the building material production and transportation stage, the construction stage, and the operation stage after the project is completed, to obtain carbon emission accounting results for different stages before, during, and after the project construction.
[0085] S2: Establish a carbon flux model, calculate and obtain a dataset of carbon flux changes in the wetland ecosystem throughout the entire project construction process based on wetland ecological monitoring data, meteorological data, biological physiological parameters and construction activity parameters;
[0086] S3: Integrate the carbon emission accounting results of different stages before, during and after the project construction with the carbon flux change data of the wetland ecosystem during the entire project construction process, construct a comprehensive carbon sink measurement model applicable to the entire construction process of production and construction projects in wetland protected areas, and calculate the total net carbon amount of the project throughout its entire life cycle.
[0087] S4: By comparing and analyzing the actual carbon sink data with the calculation results of the comprehensive carbon sink calculation model, adjust the parameters of the comprehensive carbon sink calculation model or improve the model structure to make the model calculation results closer to the actual situation.
[0088] S5: Apply the revised integrated carbon sink calculation model to calculate carbon sinks throughout the entire construction process of production and construction projects in different types of wetland protected areas; compare the model's calculation results with those obtained from other authoritative calculation methods (such as field measurement, flux tower observation, satellite inversion of carbon flux, and biomass sampling) to verify the model's accuracy and reliability. If the model verification results meet the expected error range, it indicates that the model has good applicability and can be used for carbon sink calculation throughout the entire construction process of actual wetland protected area production and construction projects.
[0089] This invention, for the first time, addresses the characteristics of the entire construction process of production and construction projects in wetland protected areas, comprehensively considers the uniqueness of wetland ecosystems and the interference of project construction on their carbon cycle, and constructs a dedicated carbon sink measurement model and method, filling a technological gap in this field.
[0090] Further, step S1 includes:
[0091] Based on project design documents, bill of materials, construction logs, and on-site sampling, collect carbon emission data for the production process of building materials, carbon emission data for the transportation process of materials, direct carbon emission data during the construction phase, and potential carbon emission and carbon sink effect data during the operation phase after the project is completed.
[0092] Carbon emissions are calculated using carbon accounting standards (such as the IPCC Greenhouse Gas Accounting Guidelines) and life cycle assessment (LCA) methods, while integrating wetland soil characteristic data (such as soil organic carbon content) to take into account the carbon storage capacity of wetland soil; a complete list of carbon emission accounting results and an operational impact assessment report are obtained to quantify the carbon sources (emissions) and potential carbon sinks (absorptions) at each stage of construction and operation.
[0093] Life Cycle Assessment (LCA) is a systematic environmental impact assessment method that evaluates the environmental impact of a product, project, or system by analyzing its resource consumption and emissions throughout its entire life cycle. In carbon emission accounting for highway construction, the LCA method helps identify carbon emission hotspots and optimize construction plans to achieve low-carbon construction goals.
[0094] Furthermore, carbon emissions from the production of building materials include energy consumption emissions from the production of materials such as cement and steel; carbon emissions from the transportation of materials include transportation distance, tool type, and fuel consumption; direct carbon emissions during the construction phase include energy consumption during the operation of machinery and equipment and energy consumption during construction activities; carbon sink effects that may occur during the project operation phase include increasing the amount of carbon sequestrated by vegetation through the restoration and protection of wetland vegetation; reducing the emission of greenhouse gases such as methane by optimizing wetland hydrological conditions; and quantifying the carbon sink effect in conjunction with the improvement of ecosystem service functions.
[0095] Carbon emissions during the production and transportation of building materials are calculated based on the type and quantity of building materials, as well as energy consumption data during the production process, combined with energy consumption data for transportation distance and mode of transportation.
[0096] Carbon emissions during construction are calculated by statistically analyzing the usage time and energy consumption of various mechanical equipment and the energy consumption of construction workers.
[0097] Carbon emissions during the operation phase after the project is completed are calculated based on energy consumption (such as lighting, air conditioning, equipment operation, etc.) and potential carbon sink effects (such as the carbon absorption potential after wetland restoration).
[0098] Furthermore, the carbon emissions during the production and transportation of building materials in step S1 are calculated using equation (1):
[0099] (1)
[0100] in: This indicates the total carbon emissions during the production and transportation of building materials. It is a time variable; It is the first The amount of various building materials used (unit: tons); This indicates the total number of types of building materials; It is the first Carbon emission factor of the production of a type of building material (unit: tons of carbon dioxide / ton of material). It is the first Transportation distance of various building materials (unit: kilometers); It is the first Carbon emission factor of transporting various building materials (unit: tons of carbon dioxide / ton·km).
[0101] The total carbon emissions during the production and transportation phases of building materials are calculated by multiplying the amount of each building material used, its production carbon emission factor, transportation distance, and transportation carbon emission factor, and then summing the results for all materials. This method takes into account the environmental impact of building materials during production and transportation, providing important data for assessing the carbon footprint of the entire project.
[0102] Furthermore, the carbon emissions during the construction phase in step S1 are calculated using equation (2):
[0103] (2)
[0104] in, This indicates the total carbon emissions during the construction phase. It is the first Usage time of each construction equipment (unit: hours); It is the first Carbon emission factor of construction equipment (unit: tons of carbon dioxide / hour). The first construction worker Energy consumption for domestic use (unit: kilowatt-hours); It is the first Carbon emission factors of various types of household energy consumption (unit: tons of carbon dioxide / kilowatt-hour). This indicates the total number of types of construction equipment; This represents the total number of types of energy consumed by construction workers in their daily lives;
[0105] The total carbon emissions for the entire construction phase are calculated by multiplying the usage time of construction equipment and its corresponding carbon emission factor, as well as multiplying the energy consumption of construction workers and its corresponding carbon emission factor, and then adding the results together. This method can comprehensively consider the contribution of various activities during construction to carbon emissions.
[0106] Furthermore, the carbon emissions during the operation phase after the project is completed in step S1 are calculated using equation (3):
[0107] (3)
[0108] in, This indicates the carbon emissions during the operation phase after the project is completed; Indicates the first Energy consumption of a type of operating equipment or system (unit: kilowatt-hours); Indicates the first Carbon emission factor of energy consumption of a type of operating equipment or system (unit: tons of carbon dioxide / unit of energy). This indicates the total number of energy-consuming activities or equipment types involved in the project's operation phase;
[0109] The total carbon emissions during the project's operational phase are calculated by multiplying the energy consumption of each operational activity or device by its corresponding carbon emission factor, and then summing the results for all activities or devices.
[0110] Furthermore, the carbon sink effect during the operation phase after the project is completed in step S1 is calculated using equation (4):
[0111] (4)
[0112] in, This refers to the carbon sink effect during the operation phase after the project is completed; It is the first The area or scale of carbon sequestration measures (such as vegetation restoration, wetland protection, etc.) (unit: hectares or other units). It is the first Carbon sequestration efficiency factor of various carbon sequestration measures (unit: tons of carbon dioxide / unit area·year). This indicates the total number of types of carbon sequestration measures;
[0113] Carbon emission accounting results at different stages before, during, and after project construction are calculated using formula (5):
[0114] (5)
[0115] in, for The total carbon emissions generated by human activities at all times, that is, the total carbon emissions at different stages before, during and after the project construction; express Total carbon emissions during the production and transportation of building materials at any given time; It is a time variable; This indicates the total carbon emissions during the construction phase. This indicates the carbon emissions during the operation phase after the project is completed; This refers to the carbon sink effect during the operation phase after the project is completed.
[0116] Furthermore, step S2 includes establishing a carbon flux model by considering the respiration, photosynthesis, and methane emission processes of the wetland ecosystem, combined with meteorological conditions and biological physiological parameters.
[0117] The carbon flux model was used to simulate the carbon exchange process within the wetland ecosystem and to analyze the dynamic impact of construction activities on carbon flux, thus obtaining a dataset of carbon flux changes in the wetland ecosystem throughout the entire project construction process.
[0118] Respiration includes vegetation respiration, soil respiration, and aquatic respiration; meteorological conditions include temperature, precipitation, and light; biological physiological parameters include plant photosynthetic rate and respiration rate constant. The plant photosynthetic rate is calibrated by measuring the photosynthetic response curve of typical wetland plants using a portable photosynthesis meter; the respiration rate constant is calibrated by measuring the baseline respiration value using a soil respiration meter.
[0119] The carbon flux model simulates the carbon exchange process within the wetland ecosystem and analyzes the dynamic impact of construction activities on carbon flux, resulting in a dataset of carbon flux changes in the wetland ecosystem throughout the project construction process; including:
[0120] Based on wetland ecological monitoring data and meteorological data, the biochemical processes of vegetation respiration, soil respiration, water respiration, photosynthesis, and methane emissions are simulated using the carbon flux model.
[0121] By integrating biological and physiological parameters and construction activity parameters, the impact of construction on carbon flux is quantified.
[0122] Use numerical modeling tools (such as MATLAB or Python's ecological modeling library) to calculate the magnitude (e.g., carbon absorption or release per unit area) and direction (e.g., carbon sink or carbon source dominance).
[0123] Obtain a dataset of carbon flux changes in the wetland ecosystem throughout the entire project construction process, including flux values, spatial distribution, and quantitative indicators of construction impact (such as flux change rate).
[0124] Construction activity parameters include the degree of vegetation damage and the intensity of soil disturbance;
[0125] Wetland ecological monitoring data includes vegetation cover and soil moisture;
[0126] The impacts of construction on carbon flux include the effect of changes in soil permeability on soil respiration and the inhibition of photosynthesis by vegetation destruction; embodiments of the present invention incorporate these influencing factors into a carbon flux model to calculate the changes in carbon flux caused by construction activities; such as Figure 2 The diagram shown illustrates the preliminary impact assessment of the construction on the physical and chemical properties of wetland soil; as shown... Figures 3-6 These are schematic diagrams illustrating the changes in soil organic carbon, soil pH, soil bulk density, and soil moisture content with sampling distance, respectively.
[0127] The carbon flux model is expressed by equation (6):
[0128] (6)
[0129] in, Represents the net carbon flux of a disturbed ecosystem, in units of ; It is a time variable; Photosynthetic carbon sequestration, i.e., the amount of carbon fixed by vegetation through photosynthesis. The quantity was suppressed by the destruction of vegetation during construction. This refers to carbon emissions from vegetation respiration, that is, carbon released by the plant's own metabolism. The quantity is positively correlated with temperature; This refers to soil respiration emissions, which are released by microorganisms decomposing organic matter. The quantity is increased due to construction disturbance; This refers to respiratory emissions from water bodies, specifically the emissions released during respiration by aquatic microorganisms and plankton. Quantity, a process unique to wetlands (such as marsh water bodies). This represents the carbon equivalent of methane emissions, specifically the amount released by methanogenic bacteria in an anaerobic environment. The quantity, converted to GWP. equivalent; Carbon flux is the net effect of construction disturbance, i.e., the total disturbance of carbon flux by human activities.
[0130] The net carbon flux of a disturbed ecosystem is calculated using equation (7):
[0131] (7)
[0132] in, Represents the net carbon flux of a disturbed ecosystem, and the net carbon exchange value per unit area of a wetland ecosystem, in units of... Negative values indicate carbon sequestration (absorption from the atmosphere). A positive value indicates a carbon source (net release into the atmosphere). (), used to assess the instantaneous carbon balance capacity of wetlands under construction disturbance; for The total amount of carbon fixed by wetland vegetation through photosynthesis under constant construction disturbance; for Carbon emissions from vegetation respiration at all times; for Carbon emissions from soil respiration at all times; for Carbon emissions from water bodies during respiration; for Carbon equivalent of methane emissions at any given time; for Carbon flux due to the net effect of construction disturbance at all times;
[0133] Total carbon fixed by wetland vegetation through photosynthesis under construction disturbance Calculated using equation (8):
[0134] (8)
[0135] in, for The total amount of carbon fixed by wetland vegetation through photosynthesis at any given time, per unit ; To measure the maximum photosynthetic capacity of the wetland; The illumination response function quantifies the actual illumination intensity. The modulatory effect on photosynthetic efficiency was investigated using a standard ecological model. The temperature response function depends on the species' optimum temperature, quantifying the temperature. The effect on enzyme activity is a parameter specific to wetlands, and a standard ecological model was used. The vegetation damage rate caused by construction, including vegetation coverage or loss, is obtained through remote sensing or on-site sampling;
[0136] Carbon emissions from vegetation respiration are calculated using equation (9):
[0137] (9)
[0138] in, for Carbon emissions from vegetation respiration at all times, per unit ; The basic respiration rate constant of vegetation; The sensitivity coefficient of wetland respiration to temperature; This refers to the real-time temperature during the construction process; This is a reference temperature, typically 25℃; The rate of vegetation damage during construction was obtained through remote sensing or on-site sampling.
[0139] Soil respiration carbon emissions are calculated using equation (10):
[0140] (10)
[0141] in, for Carbon emission rate per unit area of soil respiration at any given time, per unit ; The basic respiration rate constant of soil, in units ; The dimensionless perturbation gain coefficient; The soil disturbance intensity is a value between 0 and 1, obtained through remote sensing or field sampling. This is a function of soil disturbance intensity. Linear (take directly) ) or nonlinear (such as (to enhance the effect of high-intensity disturbances).
[0142] Carbon emissions from aquatic respiration are calculated using equation (11):
[0143] (11)
[0144] in, for Carbon emissions from water respiration at all times, per unit ; The basic respiration rate constant in water;
[0145] The carbon equivalent of methane emissions is calculated using equation (12):
[0146] (12)
[0147] in, To convert to the greenhouse effect Equivalent methane emissions, in units: ; The quasi-methane emission rate per unit time and per unit area, in units of: ; This is a temperature response function, dimensionless, used to quantify the effect of temperature on the activity of methanogens, and is commonly represented by the Arrhenius equation. Let be the water level response function, quantifying the effect of water level changes on the anaerobic environment; 28 represents the GWP. 100 coefficient;
[0148] The carbon flux resulting from the net effect of construction disturbance is calculated using equation (13):
[0149] (13)
[0150] in, express The instantaneous change in net carbon flux caused by construction activities at all times; This is a construction timing function with a value of 0 or 1, indicating whether construction is carried out during a certain period. 0 indicates that construction is stopped, and 1 indicates that construction is underway. The vegetation destruction sensitivity coefficient represents the rate of vegetation destruction per unit area. The resulting change in net carbon flux; The rate of damage to newly added vegetation; The soil disturbance sensitivity coefficient represents the intensity of soil disturbance per unit. The resulting change in net carbon flux; To increase the intensity of soil disturbance;
[0151] Further, step S3 includes: using the carbon pool calculation model based on the carbon emission inventory in step S1 as the core carbon source input, and the carbon flux model based on the carbon flux dataset in step S2 as the core carbon sink input, and combining the unique attributes of wetlands (such as hydrological conditions and vegetation type) with coupling algorithms (such as system dynamics or differential equations) to simulate the interaction between the carbon pool (such as aboveground biomass, soil biomass, and dead biomass) and the atmosphere during construction, and using software tools (such as AnyLogic or custom Python scripts) to build a comprehensive carbon sink measurement model suitable for the construction process of wetland protected areas, thereby realizing the integration of carbon sources and carbon sinks and ensuring that the model can handle dynamic construction disturbances (such as the immediate impact of excavation activities on the soil carbon pool).
[0152] The comprehensive carbon sink calculation model applicable to the construction process of wetland protected areas can output the carbon sink change curve, carbon balance table and key influencing factor analysis results for the entire construction process.
[0153] To meet the integration requirements of the wetland reserve carbon sink model, the unification of units for anthropogenic carbon emissions and natural carbon fluxes needs to be achieved through multi-level conversion, as shown in the following formula:
[0154] (14)
[0155] in, The anthropogenic carbon emission density is expressed as the total carbon emissions from human activities after unit conversion. Units: ; Total carbon emissions from human activities, in tons; for Mass conversion factor to carbon; The total wetland area affected by the project, in m², needs to be determined during implementation using project design drawings or GIS data. The time step is in hours, consistent with the time resolution of the carbon flux model.
[0156] The comprehensive carbon sequestration calculation model applicable to the entire construction process of production and construction projects in wetland protected areas, as described in step S3, is expressed by equation (15):
[0157] (15)
[0158] in, Instantaneous net carbon flux, unit: ; Net carbon flux of disturbed ecosystems; The total carbon emissions generated by human activities after unit conversion;
[0159] Furthermore, the total net carbon emissions over the entire life cycle of the project are calculated using equation (16):
[0160] (16)
[0161] in, Net carbon total for the entire lifecycle of the project, in tons; Instantaneous net carbon flux, unit: ; Project start time; The project typically ends 3-5 years after construction, when the operational stability period ends and the carbon sequestration effect reaches a steady state. The integration interval is in hours, starting from... arrive Total duration.
[0162] Further, step S4 includes: comparing and analyzing the measured carbon sink data (such as field carbon flux observations in wetland reserves or soil sample analysis) with the calculation results output by the model prototype.
[0163] Identify sources of error (such as deviations in carbon conversion coefficients or respiratory rate constants) and correct parameter values based on statistical methods (such as regression analysis or optimization algorithms);
[0164] Improve the model structure: If the parameters are not adjusted sufficiently, modify the model components (such as adding a methane emission submodule to better reflect wetland characteristics); use calibration software (such as SPSS or R optimization packages) to iteratively correct the model to ensure that it is closer to the actual carbon sink dynamics;
[0165] Further, step S5 includes:
[0166] Compare the model output with measurement data from authoritative independent methods (such as field measurement methods - collecting biomass and soil samples in the field; or flux tower observation methods - continuously monitoring atmospheric carbon exchange); calculate error indices (such as root mean square error RMSE); if the result is within the predefined error range (such as ±10%), the applicability of the model is confirmed; otherwise, return to step S5 for further correction; finally, output a validation report, including case application results, comparative analysis, and suggested scope of application.
[0167] like Figure 7 As shown, a second aspect of the present invention provides a dynamic carbon sequestration calculation system for the entire construction process of a wetland protected area, used to implement the above-mentioned design method, including...
[0168] The data collection module is used to collect carbon emission data during the production process of building materials, carbon emission data during the transportation process of materials, direct carbon emission data during the construction phase, and potential carbon emission and carbon sink effect data during the operation phase after the project is completed, based on project design documents, bill of materials and construction logs.
[0169] The carbon emission accounting module is used to calculate carbon emissions during the production and transportation stages of building materials based on the type and quantity of building materials, energy consumption data during the production process, and energy consumption data related to transportation distance and mode of transportation; to calculate carbon emissions during the construction process by statistically analyzing the usage time and energy consumption of various mechanical equipment and the living energy consumption of construction workers; to calculate carbon emissions during the operation stage of the project after completion based on energy consumption and potential carbon sink effects; and to assess the potential carbon sink effects during the project operation stage, such as the restoration and protection of wetland vegetation to increase the carbon sequestration capacity of vegetation.
[0170] The carbon flux calculation module is used to build carbon flux models, simulate the biochemical processes of vegetation respiration, soil respiration, water respiration, photosynthesis, and methane emissions, integrate biological physiological parameters and construction activity parameters, quantify the impact of construction on carbon flux, and use numerical modeling tools to calculate the magnitude and direction of carbon flux.
[0171] The integrated carbon sink calculation module is used to integrate the carbon emission accounting results at different stages before, during and after project construction and the carbon flux change dataset of the wetland ecosystem during the entire project construction process, and to build an integrated carbon sink calculation model applicable to the entire construction process of production and construction projects in wetland protected areas.
[0172] The model correction and verification module is used to adjust the parameters of the comprehensive carbon sink calculation model or improve its structure by comparing and analyzing the actual carbon sink data with the calculation results of the comprehensive carbon sink calculation model; apply the corrected comprehensive carbon sink calculation model to calculate the carbon sink of production and construction projects in different types of wetland protected areas throughout the entire construction process; and compare the model calculation results with the results obtained from other authoritative calculation methods to verify the accuracy and reliability of the model.
[0173] The user interface module allows users to input or upload relevant data, display and store carbon emission accounting results, carbon flux change datasets, and comprehensive carbon sink calculation results, and provides an interface for adjusting model parameters and improving model structure.
[0174] It should be noted that the dynamic carbon sequestration calculation system for the entire construction process of wetland protected areas provided in this embodiment can be a computer program (including program code) running on a computer device. For example, the dynamic carbon sequestration calculation method and system for the entire construction process of wetland protected areas is an application software. The dynamic carbon sequestration calculation method and system for the entire construction process of wetland protected areas can be used to execute the corresponding steps in the above-mentioned methods provided in the embodiments of this application.
[0175] In some feasible implementations, the dynamic carbon sequestration calculation system for the entire construction process of wetland protected areas provided in this embodiment can be implemented using a combination of hardware and software. As an example, the dynamic carbon sequestration calculation method and system for the entire construction process of wetland protected areas provided in this application embodiment can be a processor in the form of a hardware decoding processor, which is programmed to execute the dynamic carbon sequestration calculation method and system for the entire construction process of wetland protected areas provided in this application embodiment. For example, the processor in the form of a hardware decoding processor can adopt one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), or other electronic components.
[0176] In some feasible implementations, the dynamic carbon sequestration calculation system for the entire construction process of wetland protected areas provided in this embodiment can be implemented in software. It can be software in the form of programs and plug-ins, and includes a series of modules, such as a first main module, a second main module, a third main module, and a fourth main module, to realize the dynamic carbon sequestration calculation method for the entire construction process of wetland protected areas provided in this embodiment of the invention.
[0177] A third aspect of the present invention also provides an electronic device, Figure 8 This is a schematic diagram of the electronic device in this embodiment, as shown below. Figure 8As shown, the electronic device 1000 in this embodiment may include: a processor 1001, a network interface 1004, and a memory 1005. Furthermore, the electronic device 1000 may also include: a user interface 1003, and at least one communication bus 1002. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen and a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface). The memory 1005 may be a high-speed RAM or non-volatile memory, such as at least one disk storage device. Optionally, the memory 1005 may also be at least one storage device located remotely from the aforementioned processor 1001. Figure 8 As shown, the memory 1005, which is a computer-readable storage medium, may include an operating system, a network communication module, a user interface module, and a device control application.
[0178] like Figure 8 In the electronic device 1000 shown, the network interface 1004 provides network communication functions; the user interface 1003 is mainly used to provide an input interface for users; and the processor 1001 can be used to call the device control application stored in the memory 1005 to implement each step of the dynamic carbon sequestration calculation method for the entire construction process of the wetland protection area.
[0179] It should be understood that in some feasible implementations, the processor 1001 described above may be a central processing unit (CPU), which may also be other general-purpose processors, DSPs, ASICs, FPGAs, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor. The memory may include read-only memory and random access memory, and provides instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information.
[0180] In specific implementation, the aforementioned electronic device 1000 can perform the above-described actions through its built-in functional modules. Figure 1 The implementation methods provided for each step are detailed in the above-mentioned implementation methods, and will not be repeated here.
[0181] This application also provides a computer-readable storage medium storing a computer program that is executed by a processor to implement... Figure 1 The methods provided in each step are detailed in the implementation methods provided in the above steps, and will not be repeated here.
[0182] Any references to memory, storage, database, or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.
[0183] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A method for dynamic carbon sequestration measurement throughout the entire construction process of a wetland reserve, characterized in that, Includes the following steps: S1: Calculate the potential carbon emissions during the building material production and transportation stage, the construction stage, and the operation stage after the project is completed, to obtain carbon emission accounting results for different stages before, during, and after the project construction. S2: Establish a carbon flux model, calculate and obtain a dataset of carbon flux changes in the wetland ecosystem throughout the entire project construction process based on wetland ecological monitoring data, meteorological data, biological physiological parameters and construction activity parameters; S3: Integrate the carbon emission accounting results of different stages before, during and after the project construction with the carbon flux change data of the wetland ecosystem during the entire project construction process, construct a comprehensive carbon sink measurement model applicable to the entire construction process of production and construction projects in wetland protected areas, and calculate the total net carbon amount of the project throughout its entire life cycle. S4: By comparing and analyzing the actual carbon sink data with the calculation results of the comprehensive carbon sink calculation model, adjust the parameters of the comprehensive carbon sink calculation model or improve the model structure; S5: Apply the revised integrated carbon sink calculation model to the calculation of carbon sinks throughout the entire construction process of production and construction projects in different types of wetland protected areas; compare the model calculation results with those obtained from other authoritative calculation methods to verify the accuracy and reliability of the model; The carbon flux model described in step S2 is expressed by equation (6): (6) in, Represents net carbon flux per unit area, unit ; It is a time variable; The amount of carbon fixed by photosynthesis; This indicates carbon emissions from vegetation respiration. This indicates carbon emissions from soil respiration. This indicates carbon emissions from water respiration. Indicates the carbon equivalent of methane emissions; Carbon flux representing the net effect of construction disturbance; The comprehensive carbon sequestration calculation model applicable to the entire construction process of production and construction projects in wetland protected areas, as described in step S3, is expressed by equation (15): (15) in, Instantaneous net carbon flux, unit: ; Net carbon flux of disturbed ecosystems; The total carbon emissions from human activities after unit conversion; of which: (14) in, Total carbon emissions from human activities, in units of: ; Total carbon emissions from human activities, in tons; for Mass conversion factor to carbon; The total wetland area affected by the project, in m². Time step, unit: hours; The total net carbon emissions over the entire life cycle of the project are calculated using formula (16): (16) in, Net carbon total for the entire lifecycle of the project, in tons; Instantaneous net carbon flux, unit: ; Project start time; Project completion time; The integration interval is in hours, starting from... arrive Total duration.
2. The method for dynamic carbon sequestration calculation throughout the construction process of a wetland reserve as described in claim 1, characterized in that: Step S1 includes collecting carbon emission data from the building material production process, carbon emission data from the material transportation process, direct carbon emission data during the construction phase, and potential carbon emission and carbon sink effect data during the operation phase after the project is completed, based on project design documents, bill of materials, construction logs, and on-site sampling. Carbon emission accounting results at different stages before, during, and after project construction are calculated using formula (5): (5) in, for The total carbon emissions generated by human activities at all times, that is, the total carbon emissions at different stages before, during and after the project construction; express Total carbon emissions during the production and transportation of building materials at any given time; It is a time variable; This indicates the total carbon emissions during the construction phase. This indicates the carbon emissions during the operation phase after the project is completed; This refers to the carbon sink effect during the operation phase after the project is completed.
3. The method for dynamic carbon sequestration calculation throughout the construction process of a wetland reserve as described in claim 2, characterized in that: Step S2 includes considering the respiration, photosynthesis, and methane emission processes of wetland ecosystems, and establishing a carbon flux model by combining meteorological conditions and biological physiological parameters; The carbon flux model was used to simulate the carbon exchange process within the wetland ecosystem and to analyze the dynamic impact of construction activities on carbon flux, thus obtaining a dataset of carbon flux changes in the wetland ecosystem throughout the entire project construction process. The respiration process includes vegetation respiration, soil respiration, and aquatic respiration; the meteorological conditions include temperature, precipitation, and light intensity; and the biological physiological parameters include plant photosynthetic rate and respiration rate constant.
4. The method for dynamic carbon sequestration calculation throughout the construction process of a wetland reserve as described in claim 3, characterized in that: The carbon flux model simulates the carbon exchange process within the wetland ecosystem and analyzes the dynamic impact of construction activities on carbon flux, resulting in a dataset of carbon flux changes in the wetland ecosystem throughout the project construction process; including: Based on wetland ecological monitoring data and meteorological data, the biochemical processes of vegetation respiration, soil respiration, water respiration, photosynthesis, and methane emissions are simulated using the carbon flux model. By integrating biological and physiological parameters and construction activity parameters, the impact of construction on carbon flux is quantified. Numerical modeling tools were used to calculate the magnitude and direction of carbon flux; a dataset of carbon flux changes in the wetland ecosystem during the entire project construction process was obtained, including flux values, spatial distribution, and quantitative indicators of construction impact. The construction activity parameters include the degree of vegetation damage and the intensity of soil disturbance. The wetland ecological monitoring data includes vegetation cover and soil moisture.
5. A method for dynamic carbon sequestration calculation throughout the construction process of a wetland protected area according to any one of claims 1-4, characterized in that: The net carbon flux of a disturbed ecosystem is calculated using equation (7): (7) in, for The total amount of carbon fixed by wetland vegetation through photosynthesis under constant construction disturbance; for Carbon emissions from vegetation respiration at all times; for Carbon emissions from soil respiration at all times; for Carbon emissions from water respiration at any given time; for Carbon equivalent of methane emissions at any given time; for Carbon flux due to the net effect of construction disturbance at all times; The total carbon fixed by wetland vegetation through photosynthesis under construction disturbance is calculated using equation (8): (8) in, for The total amount of carbon fixed by wetland vegetation through photosynthesis at any given time, per unit ; To measure the maximum photosynthetic capacity of the wetland; This is the illumination response function; This is the temperature response function; The rate of vegetation damage caused by construction; Carbon emissions from vegetation respiration are calculated using equation (9): (9) in, for Carbon emissions from vegetation respiration at all times, per unit ; The basic respiration rate constant of vegetation; The sensitivity coefficient of wetland respiration to temperature; This refers to the real-time temperature during the construction process; For reference temperature; The rate of vegetation damage during construction was obtained through remote sensing or on-site sampling. Soil respiration carbon emissions are calculated using equation (10): (10) in, for Carbon emission rate per unit area of soil respiration at any given time, per unit ; The basic respiration rate constant of soil, in units ; The dimensionless perturbation gain coefficient; The soil disturbance intensity is a value between 0 and 1, obtained through remote sensing or field sampling. This is a function of soil disturbance intensity. Carbon emissions from aquatic respiration are calculated using equation (11): (11) in, for Carbon emissions from water respiration at all times, per unit ; This is the basic respiration rate constant of the water body.
6. The method for dynamic carbon sequestration calculation throughout the construction process of a wetland reserve as described in claim 5, characterized in that: The carbon equivalent of methane emissions is calculated using equation (12): (12) in, To convert to the greenhouse effect Equivalent methane emissions, in units: ; The quasi-methane emission rate per unit time and per unit area, in units of: ; This is a temperature response function, dimensionless, used to quantify the effect of temperature on the activity of methanogens, and is commonly represented by the Arrhenius equation. Let be the water level response function, quantifying the effect of water level changes on the anaerobic environment; 28 represents the GWP. 100 coefficient.
7. The method for dynamic carbon sequestration calculation throughout the construction process of a wetland reserve according to claim 6, characterized in that: The carbon flux resulting from the net effect of construction disturbance is calculated using equation (13): (13) in, express The instantaneous change in net carbon flux caused by construction activities at all times; For construction timing functions; Sensitivity coefficient for vegetation destruction; The rate of damage to newly added vegetation; Soil disturbance sensitivity coefficient, This is to increase the intensity of soil disturbance.
8. A dynamic carbon sequestration measurement system for the entire construction process of a wetland protected area, characterized in that, The method and system for dynamically calculating carbon sequestration throughout the construction process of wetland protected areas as described in any one of claims 1-7 include: The data collection module is used to collect carbon emission data during the production process of building materials, carbon emission data during the transportation process of materials, direct carbon emission data during the construction phase, and potential carbon emission and carbon sink effect data during the operation phase after the project is completed, based on project design documents, bill of materials and construction logs. The carbon emission accounting module is used to calculate the carbon emissions during the production and transportation stages of building materials based on the type and quantity of building materials, energy consumption data during the production process, and energy consumption data of transportation distance and mode of transportation; to calculate the carbon emissions during the construction process by statistically analyzing the usage time and energy consumption of various mechanical equipment and the living energy consumption of construction workers; to calculate the carbon emissions during the operation stage of the project after completion based on the energy consumption and potential carbon sink effect during the operation stage of the project; and to assess the potential carbon sink effect during the operation stage of the project. The carbon flux calculation module is used to build carbon flux models, simulate the biochemical processes of vegetation respiration, soil respiration, water respiration, photosynthesis, and methane emissions, integrate biological physiological parameters and construction activity parameters, quantify the impact of construction on carbon flux, and use numerical modeling tools to calculate the magnitude and direction of carbon flux. The integrated carbon sink calculation module is used to integrate the carbon emission accounting results at different stages before, during and after project construction and the carbon flux change dataset of the wetland ecosystem during the entire project construction process, and to build an integrated carbon sink calculation model applicable to the entire construction process of production and construction projects in wetland protected areas. The model correction and verification module is used to adjust the parameters of the comprehensive carbon sink calculation model or improve its structure by comparing and analyzing the actual carbon sink data with the calculation results of the comprehensive carbon sink calculation model; apply the corrected comprehensive carbon sink calculation model to calculate the carbon sink of production and construction projects in different types of wetland protected areas throughout the entire construction process; and compare the model calculation results with the results obtained from other authoritative calculation methods to verify the accuracy and reliability of the model.
Citation Information
Patent Citations
Ecological restoration project full life cycle carbon footprint assessment method
CN119578699A
Land gradient utilization carbon emission effect evaluation method, evaluation model, system and readable storage medium
CN120509573A
