Water conservancy project carbon sink value accounting method and system

Abstract

The invention provides a hydraulic engineering carbon sink value accounting method and system, and relates to the crossing field of hydraulic engineering and environmental science, and the method comprises the steps: collecting the engineering basic data and multi-dimensional ecological data of the hydraulic engineering; constructing a soil carbon sink sub-model, a water body carbon balance sub-model and a vegetation biological quantum model to form a carbon sink dynamic accounting model; and dynamically calculating the total carbon sink amount and converting the total carbon sink amount into an economic value according to the engineering basic data, the multi-dimensional ecological data and the carbon sink dynamic accounting model. The method is used for quantifying the carbon sink contribution of the water conservancy project to ecological systems such as soil, water and vegetation and converting the carbon sink contribution into economic value evaluation, so that the defects in the prior art are overcome, the carbon sink value of the water conservancy project is accurately and comprehensively calculated, and a scientific basis is provided for environmental benefit evaluation and sustainable development of the water conservancy project.

Description

Technical Field

[0001] The present invention relates to the intersecting field of water conservancy engineering and environmental science, and in particular to a method and system for calculating the carbon sink value of a water conservancy engineering. Background Art

[0002] In the context of responding to global climate change, carbon sink research has received increasing attention. There have been many studies on carbon sink accounting methods in forestry and other fields, but there is still a lack of perfect methods for carbon sink value accounting of water conservancy projects. Some current related studies have the following limitations: 1. Data acquisition: Most of the existing data related to water conservancy projects focus on engineering construction parameters, water resource utilization, etc., while the data collection related to carbon sinks is not comprehensive. For example, there is a lack of systematic collection of data such as changes in soil carbon reserves and dynamic changes in dissolved carbon in water bodies within the influence range of water conservancy projects.

[0003] 2. Accounting model: Most of the existing carbon sink accounting models are based on a single ecosystem and cannot adapt well to the complex artificial-natural composite system of water conservancy projects. Water conservancy projects involve a variety of facilities such as reservoirs, dams, irrigation channels, etc., and their impacts on the surrounding ecosystems are complex and diverse. The existing general models cannot accurately reflect the carbon sink function of water conservancy projects. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a method and system for calculating the carbon sink value of water conservancy projects based on multi-source data fusion and dynamic modeling, which is used to quantify the carbon sink contribution of water conservancy projects to ecosystems such as soil, water bodies, and vegetation, and convert it into an economic value assessment, so as to overcome the shortcomings of the existing technology, accurately and comprehensively calculate the carbon sink value of water conservancy projects, and provide a scientific basis for the environmental benefit assessment and sustainable development of water conservancy projects.

[0005] To achieve the above object, the present invention provides the following technical solutions: Based on the above objectives, in a first aspect, the present invention provides a method for calculating the carbon sink value of a water conservancy project, comprising the following steps: Collect basic engineering data and multi-dimensional ecological data of water conservancy projects; Construct soil carbon sink sub-model, water carbon balance sub-model and vegetation biomass quantum model to form a carbon sink dynamic accounting model; Based on basic engineering data, multi-dimensional ecological data and carbon sink dynamic accounting model, the total carbon sink volume is dynamically calculated and converted into economic value.

[0006] As a further solution of the present invention, the basic engineering data includes engineering type (reservoir / irrigation / flood control), scale (reservoir capacity, irrigation area), operating years and geographical location; the multi-dimensional ecological data includes: Soil data: Soil organic carbon content (SOC), bulk density, and texture are measured in a grid-like manner (e.g., 1,000 m² / point) in the project impact area, and repeated annually to calculate ΔSOC (annual change).

[0007] ‌Water Data‌: Monitoring of dissolved organic carbon (DOC), inorganic carbon (DIC), aquatic biomass (phytoplankton / macroalgae) in reservoirs and channels, and recording of hydrological parameters (flow rate, residence time) through a combination of in situ sensors and laboratory analysis.

[0008] Vegetation data: Remote sensing images (NDVI index) are combined with field sampling to obtain vegetation type (forest / grassland), coverage, vegetation growth status, and artificial vegetation planting density and carbon fixation rate.

[0009] As a further solution of the present invention, the soil carbon sink submodel is used for soil carbon sink accounting. According to the change of soil organic carbon content, soil area (soil area within the influence range of water conservancy projects) and soil carbon pool turnover time, a soil carbon sink accounting submodel is constructed:

[0010] Among them, C （soil） is the soil carbon sink (unit: tons of carbon / year), S is the soil area within the influence range of the water conservancy project (unit: square meters), Delta SOC is the annual change in soil organic carbon content per unit area (unit: tons of carbon / square meter / year), T （soil） is the soil carbon pool turnover time (unit: year).

[0011] As a further solution of the present invention, the water body carbon balance submodel is used for water body carbon sink accounting. Based on the carbon input (such as carbon brought in by surface runoff, carbon fixed by aquatic organisms, etc.) and output (such as carbon released by the water body into the atmosphere, carbon flowing out with the water flow, etc.) in the water body, a water body carbon sink accounting submodel is constructed:

[0012] Among them, C (water) is the carbon sink in water bodies (unit: tons of carbon / year), I is the carbon input into water bodies (unit: tons of carbon / year), and O is the carbon output from water bodies (unit: tons of carbon / year).

[0013] As a further solution of the present invention, the carbon sink dynamic accounting model is used for vegetation carbon sink accounting. For different vegetation types, a vegetation carbon sink accounting sub-model is constructed according to the biomass, carbon content and vegetation growth rate of the vegetation. Among them, the carbon sink dynamic accounting model of forest vegetation is:

[0014] Among them, C (forest)is the forest vegetation carbon sink (unit: tons of carbon / year), B is the forest vegetation biomass (unit: tons), C (rate) is the carbon content of forest vegetation (dimensionless), T (growth) is the forest vegetation growth cycle (unit: year).

[0015] As a further solution of the present invention, the total carbon sink amount is dynamically calculated by the carbon sink dynamic accounting model, and the comprehensive carbon sink value accounting is performed, including the following steps: The total carbon sequestration of water conservancy projects is obtained by adding the carbon sequestration of soil, water and vegetation: C (total) =C (soil) +C (water) +C (forest) ; Determine the conversion factor P (unit: yuan / ton of carbon) of carbon sink value based on carbon market price or carbon emission reduction cost, and calculate the carbon sink value of water conservancy projects .

[0016] In a second aspect, the present invention provides a water conservancy project carbon sink value accounting system, comprising: The data collection layer is used to collect basic engineering data and multi-dimensional ecological data of water conservancy projects; The model construction layer, including soil carbon sink sub-model, water carbon balance sub-model and vegetation biomass quantum model, constitutes the dynamics of carbon sink dynamic accounting model; The accounting application layer is used to dynamically calculate the total carbon sink based on engineering basic data, multi-dimensional ecological data and the carbon sink dynamic accounting model.

[0017] As a further solution of the present invention, the data collection layer includes: IoT devices, including: soil moisture sensors, water quality multi-parameter probes, and weather stations; Remote sensing terminal: drones or satellites to obtain vegetation coverage data; Manual input interface: input basic engineering data and artificial vegetation information.

[0018] As a further solution of the present invention, the water conservancy project carbon sink value accounting system also includes a data processing layer and a display layer. The data processing layer includes a data cleaning module and a spatiotemporal database, which are respectively used to remove outliers and standardize data formats, and store geographic information ecological parameters and engineering data; the display layer includes a visualization interface and a decision support module. The visualization interface is used to display carbon sink heat maps, economic value reports and trend forecasts; the decision support module is used to generate ecological compensation recommendations and engineering scheduling optimization plans.

[0019] As a further solution of the present invention, the water conservancy project carbon sink value accounting system supports an API interface, connects to the carbon trading platform in real time to obtain carbon price data, and dynamically updates the accounting results. In another aspect of the present invention, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, any one of the above-mentioned methods for calculating the carbon sink value of a water conservancy project according to the present invention is executed.

[0020] In yet another aspect of the present invention, a computer-readable storage medium is provided, storing computer program instructions, which, when executed, implement any of the above-mentioned methods for calculating the carbon sink value of a water conservancy project according to the present invention.

[0021] Compared with the prior art, the method and system for calculating the carbon sink value of a water conservancy project proposed in the present invention have the following beneficial effects: The present invention integrates the basic data of water conservancy projects with multi-dimensional ecological parameters such as soil, water bodies, and vegetation to construct a carbon sink accounting framework covering all factors, effectively solving the problem of data one-sidedness in traditional methods and improving the accounting accuracy. The soil carbon pool turnover time is dynamically adjusted in the soil carbon sink model, and the differences in climate zones and soil types are combined to reduce the errors caused by fixed parameters.

[0022] In view of the characteristics of the artificial-natural composite system of water conservancy projects, the present invention has developed a soil carbon sink sub-model, a water body carbon balance sub-model and a vegetation biological quantum model to form a carbon sink dynamic accounting model, which significantly improves the applicability of the model to scenarios such as reservoir inundation areas and irrigation channels. By predicting the water body carbon flux, the prediction accuracy is optimized using hydrological parameters and historical data, thereby reducing the uncertainty of the carbon transfer process.

[0023] The present invention can also directly connect to the carbon trading platform to obtain real-time carbon prices, support dynamic accounting of carbon sink value, provide a quantitative basis for green financing and ecological compensation mechanisms for water conservancy projects, and reduce carbon sink calculation errors through grid sampling and machine learning models. It can dynamically generate carbon sink gain plans, obtain vegetation optimization planting recommendations, directly connect to the carbon market, and assist in green financing of water conservancy projects.

[0024] These and other aspects of the present application will be more concise and understandable in the following description of the embodiments. It should be understood that the above general description and the following detailed description are only exemplary and explanatory and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the exemplary embodiments or related technical descriptions. The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 The present invention is a flowchart of a method for calculating the carbon sink value of a water conservancy project according to an embodiment of the present invention.

[0026] Figure 2 The present invention is a flowchart of real-time measurement of optical fiber data in a method for calculating the carbon sink value of a water conservancy project according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are intended to distinguish two non-identical entities or non-identical parameters with the same name. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, other steps or units inherent to a process, method, system, product or device that includes a series of steps or units.

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0032] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0033] The carbon sink value accounting of water conservancy projects has the problem that the data collection related to carbon sink is not comprehensive and is based on a single ecosystem, which cannot accurately reflect the carbon sink function of water conservancy projects. The present invention proposes a method and system for calculating the carbon sink value of water conservancy projects, which is used to quantify the carbon sink contribution of water conservancy projects to ecosystems such as soil, water bodies, and vegetation, and convert it into economic value assessment, so as to overcome the deficiencies in the existing technology, accurately and comprehensively calculate the carbon sink value of water conservancy projects, and provide a scientific basis for the environmental benefit assessment and sustainable development of water conservancy projects.

[0034] See also Figure 1 As shown, an embodiment of the present invention provides a method for calculating the carbon sink value of a water conservancy project, the method comprising the following steps: Step S10: Collect basic engineering data and multi-dimensional ecological data of water conservancy projects.

[0035] In this step, the basic engineering data include engineering type (reservoir / irrigation / flood control), scale (reservoir capacity, irrigation area), operation years and geographical location. The multi-dimensional ecological data include: (1) Soil data: Soil organic carbon content (SOC), bulk density, and texture are measured in a grid-like manner (e.g., 1,000 m² / point) in the project impact area, and repeated measurements are made annually to calculate ΔSOC (annual change).

[0036] (2) Water body data: Through a combination of in situ sensors and laboratory analysis, the dissolved organic carbon (DOC), inorganic carbon (DIC), aquatic biomass (phytoplankton / macroalgae) in reservoirs and channels are monitored, and hydrological parameters (flow rate, residence time) are recorded.

[0037] (3) Vegetation data: Remote sensing images (NDVI index) and field sampling are combined to obtain the vegetation type (forest / grassland), vegetation coverage, vegetation growth conditions (such as plant height, breast diameter, etc.) around the water conservancy project, and the planting density and carbon fixation rate of artificial vegetation.

[0038] In this embodiment, when collecting the basic information of the above-mentioned project, basic information such as the project type, scale, construction time and operating life is obtained by consulting the design documents, construction files and statistical data of the management department of the water conservancy project. When collecting ecological environment data, for soil data collection, soil samples are collected within the influence range of the water conservancy project according to a certain sampling interval (such as setting a sampling point every 1,000 square meters). Professional soil analysis instruments are used to measure indicators such as soil organic carbon content, and repeated sampling is performed at regular intervals (such as every year) to obtain data on changes in soil organic carbon content.

[0039] For water body data collection, sampling points are set up at key locations of water bodies related to water conservancy projects (such as reservoir inlets and outlets, middle sections of channels, etc.), and water samples are collected regularly (such as monthly). Chemical analysis methods are used to determine the DOC and DIC content, and biological survey methods are used to count the aquatic plants and plankton biomass. At the same time, hydrological monitoring equipment is used to record hydrological parameters such as water velocity and flow, and the input and output of water carbon are calculated based on these data.

[0040] For vegetation data collection, a method combining remote sensing image analysis and field survey is used. First, macro information such as vegetation coverage type and coverage rate around the water conservancy project is obtained through remote sensing images, and then a detailed survey of vegetation is conducted on the spot, such as measuring the height and breast diameter of trees, and for artificial vegetation, detailed records of planting varieties, planting density and other information are recorded. Based on these data, vegetation biomass is calculated, and parameters such as vegetation carbon content and growth rate are determined in combination with relevant research.

[0041] Step S20: construct a soil carbon sink sub-model, a water carbon balance sub-model and a vegetation biomass quantum model to form a carbon sink dynamic accounting model.

[0042] In this step, the soil carbon sink submodel is used for soil carbon sink accounting. According to the change of soil organic carbon content, soil area (soil area within the influence range of water conservancy projects) and soil carbon pool turnover time, a soil carbon sink accounting submodel is constructed:

[0043] Among them, C （soil） is the soil carbon sink (unit: tons of carbon / year), S is the soil area within the influence range of the water conservancy project (unit: square meters), Delta SOC is the annual change in soil organic carbon content per unit area (unit: tons of carbon / square meter / year), T （soil） is the soil carbon pool turnover time (unit: year).

[0044] For example, when calculating soil carbon sink, the soil carbon sink amount is calculated according to the soil data collected and the soil carbon sink calculation sub-model. For example, the soil area S = 10,000 square meters within the influence range of a water conservancy project, the annual change in soil organic carbon content per unit area Delta SOC = 0.01 tons of carbon / square meter / year, and the soil carbon pool turnover time T (soil) = 10 years, then the soil carbon sink =10000*0.01 / 10 tons of carbon / year.

[0045] In this embodiment, the water body carbon balance submodel is used for water body carbon sink accounting. Based on the carbon input (such as carbon brought in by surface runoff, carbon fixed by aquatic organisms, etc.) and output (such as carbon released by the water body into the atmosphere, carbon flowing out with the water flow, etc.) in the water body, a water body carbon sink accounting submodel is constructed:

[0046] Among them, C (water) is the carbon sink in water bodies (unit: tons of carbon / year), I is the carbon input into water bodies (unit: tons of carbon / year), and O is the carbon output from water bodies (unit: tons of carbon / year).

[0047] For example, when calculating water carbon sink, the water carbon sink is calculated according to the water carbon sink calculation sub-model based on the data of water carbon input and output. Assuming that the water carbon input of a reservoir is I = 50 tons of carbon / year, and the carbon output is O = 40 tons of carbon / year, then the water carbon sink C (water) =IO=50 - 40 = 10 tons of carbon / year.

[0048] In this embodiment, the carbon sink dynamic accounting model is used for vegetation carbon sink accounting. For different vegetation types, a vegetation carbon sink accounting sub-model is constructed according to the biomass, carbon content and vegetation growth rate of the vegetation. Among them, the carbon sink dynamic accounting model of forest vegetation is:

[0049] Among them, C (forest) is the forest vegetation carbon sink (unit: tons of carbon / year), B is the forest vegetation biomass (unit: tons), C (rate) is the carbon content of forest vegetation (dimensionless), T (growth) is the forest vegetation growth cycle (unit: year).

[0050] For example, when calculating vegetation carbon sink, the vegetation carbon sink amount is calculated according to the vegetation data and the vegetation carbon sink calculation sub-model. For example, the biomass of forest vegetation around a water conservancy project is B = 100 tons, and the carbon content is C (rate) =0.5, growth period T (growth) = 20 years, then the forest vegetation carbon sink =100*0.5 / 20=2.5 ​​tons of carbon / year.

[0051] Step S30: dynamically calculate the total carbon sink amount and convert it into economic value based on the basic engineering data, multi-dimensional ecological data and the carbon sink dynamic accounting model.

[0052] In this step, the total carbon sink amount is dynamically calculated through the carbon sink dynamic accounting model, and the comprehensive carbon sink value accounting is carried out, including the following steps: The total carbon sequestration of water conservancy projects is obtained by adding the carbon sequestration of soil, water and vegetation: C (total) =C (soil) +C (water) +C (forest) ; Determine the conversion factor P (unit: yuan / ton of carbon) of carbon sink value based on carbon market price or carbon emission reduction cost, and calculate the carbon sink value of water conservancy projects .

[0053] For example, when calculating the comprehensive carbon sink value, the calculated carbon sinks of soil, water and vegetation are added together to obtain the total carbon sink of the water conservancy project C (total) =C (soil) +C (water) +C (rate) =10 + 10+2.5 = 22.5 tons of carbon / year. Assuming the conversion factor of carbon sink value P = 100 yuan / ton of carbon, the carbon sink value of water conservancy projects V = C (tota) * P = 2250 yuan / year.

[0054] The present invention comprehensively considers various carbon sink factors such as soil, water bodies and vegetation under the influence of water conservancy projects, avoids the defect of previous accounting methods that only focus on a single factor, and can more comprehensively and accurately reflect the carbon sink function of water conservancy projects. The accuracy of carbon sink accounting is improved through detailed on-site data collection and specially constructed accounting models suitable for water conservancy projects. These models take into account the particularity of water conservancy projects, such as the different ways in which different types of projects affect the surrounding ecosystems. The accounting method can be adjusted according to water conservancy projects of different types and sizes and has a wide range of adaptability. Whether it is a large-scale inter-basin water diversion project or a small-scale irrigation water conservancy project, this method can be used to calculate the carbon sink value.

[0055] It should be noted that the above figures are only schematic illustrations of the processes included in the method according to an exemplary embodiment of the present invention, and are not intended to be limiting. It is easy to understand that the processes shown in the above figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be performed synchronously or asynchronously, for example, in multiple modules.

[0056] It should be understood that, although described in a certain order, these steps are not necessarily performed in sequence in the above order. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be performed in other orders. Moreover, a part of the steps of the present embodiment may include a plurality of steps or a plurality of stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with at least a part of the steps or stages in other steps or other steps.

[0057] In the second aspect of the embodiment of the present invention, see Figure 2 As shown, the present invention also provides a water conservancy project carbon sink value accounting system, including: The data collection layer is used to collect basic engineering data and multi-dimensional ecological data of water conservancy projects; The model construction layer, including soil carbon sink sub-model, water carbon balance sub-model and vegetation biomass quantum model, constitutes the dynamics of carbon sink dynamic accounting model; The accounting application layer is used to dynamically calculate the total carbon sink based on engineering basic data, multi-dimensional ecological data and the carbon sink dynamic accounting model.

[0058] The data collection layer includes: IoT devices, including: soil moisture sensors, water quality multi-parameter probes, and weather stations; Remote sensing terminal: drones or satellites to obtain vegetation coverage data; Manual input interface: input basic engineering data and artificial vegetation information.

[0059] In this embodiment, the water conservancy project carbon sink value accounting system also includes a data processing layer and a display layer. The data processing layer includes a data cleaning module and a spatiotemporal database, which are respectively used to remove outliers and standardize data formats, and store geographic information ecological parameters and engineering data; the display layer includes a visualization interface and a decision support module. The visualization interface is used to display carbon sink heat maps, economic value reports and trend forecasts; the decision support module is used to generate ecological compensation recommendations and engineering scheduling optimization plans.

[0060] Among them, the water conservancy project carbon sink value accounting system supports API interface, connects to the carbon trading platform in real time to obtain carbon price data, and dynamically updates the accounting results.

[0061] Through the above detailed steps, the water conservancy project carbon sink value accounting system of the present invention is used to execute the steps of the water conservancy project carbon sink value accounting method in the above embodiment, which will not be repeated here.

[0062] According to a third aspect of an embodiment of the present invention, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the method of any one of the above embodiments is implemented.

[0063] The computer device includes a processor and a memory, and may also include: an input system and an output system. The processor, memory, input system and output system may be connected via a bus or other means, and the input system may receive input digital or character information, and generate signal input related to the migration of the water conservancy project carbon sink value accounting. The output system may include display devices such as a display screen.

[0064] As a non-volatile computer-readable storage medium, the memory can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as the program instructions / modules corresponding to the water conservancy project carbon sink value accounting method in the embodiment of the present application. The memory may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required by at least one function; the data storage area may store data created by the use of the water conservancy project carbon sink value accounting method, etc. In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory may optionally include a memory remotely arranged relative to the processor, and these remote memories may be connected to the local module via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0065] The processor may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chip in some embodiments. The processor is generally used to control the overall operation of the computer device. In this embodiment, the processor is used to run the program code stored in the memory or process data. The processors of the multiple computer devices of the computer device of this embodiment execute various functional applications and data processing of the server by running non-volatile software programs, instructions and modules stored in the memory, that is, implementing the steps of the water conservancy project carbon sink value accounting method of the above method embodiment.

[0066] It should be understood that, unless they conflict with each other, all the embodiments, features and advantages described above for the carbon sink value accounting method for a water conservancy project according to the present invention are also applicable to the carbon sink value accounting and storage medium for a water conservancy project according to the present invention.

[0067] It will also be appreciated by those skilled in the art that various exemplary logic blocks, modules, circuits and algorithm steps described in conjunction with the disclosure herein can be implemented as electronic hardware, computer software or a combination of the two. In order to clearly illustrate this interchangeability of hardware and software, a general description has been given to the functions of various schematic components, blocks, modules, circuits and steps. Whether this function is implemented as software or hardware depends on specific applications and the design constraints imposed on the entire system. Those skilled in the art can implement the function in various ways for each specific application, but this implementation decision should not be interpreted as causing a departure from the disclosed scope of the embodiments of the present invention.

[0068] Finally, it should be noted that the computer-readable storage medium (e.g., memory) herein may be a volatile memory or a non-volatile memory, or may include both a volatile memory and a non-volatile memory. As an example and not by way of limitation, a non-volatile memory may include a read-only memory (ROM), a programmable ROM (PROM), an electrically programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), or a flash memory. A volatile memory may include a random access memory (RAM), which may act as an external cache memory. As an example and not by way of limitation, RAM may be obtained in a variety of forms, such as synchronous RAM (DRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct Rambus RAM (DRRAM). The storage devices of the disclosed aspects are intended to include, but are not limited to, these and other suitable types of memory.

[0069] The various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure herein may be implemented or executed using the following components designed to perform the functions herein: a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components. A general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP, and / or any other such configuration.

[0070] The above are exemplary embodiments disclosed in the present invention, but it should be noted that various changes and modifications may be made without departing from the scope disclosed in the embodiments of the present invention as defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0071] It should be understood that, as used herein, the singular form "a" or "an" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the items listed in association. The serial numbers of the embodiments disclosed in the above embodiments of the present invention are for description only and do not represent the advantages and disadvantages of the embodiments.

[0072] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A method for calculating the carbon sink value of a water conservancy project, characterized in that: The method comprises the following steps: Collect basic engineering data and multi-dimensional ecological data of water conservancy projects; Construct soil carbon sink sub-model, water carbon balance sub-model and vegetation biomass quantum model to form a carbon sink dynamic accounting model; Based on basic engineering data, multi-dimensional ecological data and carbon sink dynamic accounting model, the total carbon sink volume is dynamically calculated and converted into economic value.

2. The method for calculating the carbon sink value of a water conservancy project according to claim 1, characterized in that: The basic project data include project type, scale, operating years and geographical location; The multi-dimensional ecological data includes: Soil data: Grid-based measurement of soil organic carbon content, bulk density, and texture in the project impact area, with repeated measurements every year to calculate annual changes; ‌Water Data‌: Monitoring of dissolved organic carbon, inorganic carbon, aquatic biomass, and recording of hydrological parameters in reservoirs and channels through a combination of in situ sensors and laboratory analysis; Vegetation data: Remote sensing images are combined with field sampling to obtain vegetation types, coverage, vegetation growth conditions, and artificial vegetation planting density and carbon fixation rate.

3. The method for calculating the carbon sink value of a water conservancy project according to claim 2, characterized in that: The soil carbon sink submodel is used for soil carbon sink accounting. According to the change of soil organic carbon content, soil area and soil carbon pool turnover time, a soil carbon sink accounting submodel is constructed: :Among them, C （soil） is the soil carbon sink, S is the soil area within the influence range of the water conservancy project, Delta SOC is the annual change in soil organic carbon content per unit area, T （soil） is the soil carbon pool turnover time.

4. The method for calculating the carbon sink value of a water conservancy project according to claim 3, characterized in that: The water carbon balance submodel is used for water carbon sink accounting. Based on the input and output of carbon in the water body, a water carbon sink accounting submodel is constructed: :Among them, C (water) is the carbon sink of water body, I is the carbon input of water body, and O is the carbon output of water body.

5. The method for calculating the carbon sink value of a water conservancy project according to claim 4, characterized in that: The carbon sink dynamic accounting model is used for vegetation carbon sink accounting. For different vegetation types, a vegetation carbon sink accounting sub-model is constructed according to the biomass, carbon content and vegetation growth rate of the vegetation. Among them, the carbon sink dynamic accounting model of forest vegetation is: :Among them, C (forest) is the carbon sink of forest vegetation, B is the biomass of forest vegetation, C (rate) is the carbon content of forest vegetation, T (growth) It is the growth cycle of forest vegetation.

6. The method for calculating the carbon sink value of a water conservancy project according to claim 5, characterized in that: The dynamic calculation of the total carbon sink volume through the carbon sink dynamic accounting model and the comprehensive carbon sink value accounting include the following steps: The total carbon sequestration of water conservancy projects is obtained by adding the carbon sequestration of soil, water and vegetation: C (total) =C (soil) +C (water) +C (forest) ; Determine the conversion factor P of carbon sink value based on carbon market price or carbon emission reduction cost, and calculate the carbon sink value of water conservancy projects .

7. A water conservancy project carbon sink value accounting system, characterized in that: Used to implement the water conservancy project carbon sink value accounting method according to any one of claims 1 to 6, the system comprises: The data collection layer is used to collect basic engineering data and multi-dimensional ecological data of water conservancy projects; ‌Model construction layer, including soil carbon sink sub-model, water carbon balance sub-model and vegetation biomass quantum model, constitutes the dynamics of carbon sink dynamic accounting model; The accounting application layer is used to dynamically calculate the total carbon sink based on engineering basic data, multi-dimensional ecological data and the carbon sink dynamic accounting model.

8. The water conservancy project carbon sink value accounting system according to claim 7, characterized in that: The data collection layer includes: IoT devices, including: soil moisture sensors, water quality multi-parameter probes, and weather stations; Remote sensing terminal: drones or satellites to obtain vegetation coverage data; Manual input interface: input basic engineering data and artificial vegetation information.

9. The water conservancy project carbon sink value accounting system according to claim 7, characterized in that: The water conservancy project carbon sink value accounting system also includes a data processing layer and a display layer. The data processing layer includes a data cleaning module and a spatiotemporal database, which are respectively used to remove outliers and standardize data formats, and store geographic information ecological parameters and engineering data; the display layer includes a visualization interface and a decision support module, and the visualization interface is used to display carbon sink heat maps, economic value reports and trend forecasts; The decision support module is used to generate ecological compensation suggestions and engineering scheduling optimization solutions.

10. The water conservancy project carbon sink value accounting system according to claim 7, characterized in that: The water conservancy project carbon sink value accounting system supports an API interface, connects to a carbon trading platform in real time to obtain carbon price data, and dynamically updates the accounting results.

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