An aquatic ecological asset assessment method and system based on linkage ecological product total value

Abstract

This invention provides a method and system for assessing water ecological assets based on the Gross Ecological Product (GEP), belonging to the field of asset assessment technology. The method includes: collecting core data of water ecological assets; calculating the final positive ecological contribution value of the water ecological assets based on the core data using the excess return method; calculating the negative compensation value of the water ecological assets using the substitution cost method; calculating the final value of the water ecological assets by combining the final positive ecological contribution value and the negative compensation value; verifying the GEP preservation and appreciation constraint of the core data based on the final value, and obtaining the verification result; and generating a standardized assessment report of the water ecological assets based on the verification result. This invention can accurately quantify the positive contribution and negative compensation of water ecological assets, solve the problems of underestimation and one-sided accounting in traditional assessments, construct a closed-loop constraint for GEP preservation and appreciation, avoid ecological value loss, significantly improve the accuracy and efficiency of assessment, and support the coordinated development of ecology and economy.

Description

Technical Field

[0001] This invention relates to the field of asset valuation technology, specifically to a method and system for assessing water ecological assets based on the total value of interconnected ecological products. Background Technology

[0002] Aquatic ecosystems are key ecological assets supporting regional development, possessing significant public welfare and diversified economic value. They not only provide direct economic benefits such as water resource supply, aquaculture, and ecotourism, but also play vital ecological service functions such as water purification, water conservation, and flood regulation. They are a core component and crucial support of the Gross Ecological Product (GEP). To promote the market-based allocation of aquatic ecological assets, improve cross-basin ecological compensation, and achieve synergy between ecological protection and economic development, it is urgent to construct a scientific evaluation system that takes into account the characteristics of aquatic ecosystems and links GEP accounting.

[0003] Currently, water ecological asset assessment and GEP accounting have long been disconnected, failing to form an effective connection. Most existing related technologies and patents focus on a single direction, either conducting research only on water ecological compensation or performing GEP accounting separately, failing to build an integrated, full-process assessment mechanism for practical scenarios such as the market-based trading and development of water ecological assets, resulting in significant limitations in the application of these technologies.

[0004] However, existing methods do not fully consider the fluidity and public welfare characteristics of water ecosystems, making it impossible to accurately identify and quantify their hidden and diffuse positive ecological contributions, which can easily lead to undervaluation. They also lack a scientific contribution stripping mechanism, making it difficult to distinguish the revenue sources of water ecosystem assets from those of other assets. Furthermore, they fail to establish constraints on the preservation and appreciation of GEP after trading and development, resulting in inaccurate calculations of ecological losses and compensation. Finally, they lack an integrated accounting logic for positive ecological contributions and negative ecological compensation, leading to biased and insufficiently supportive assessment results that cannot meet the practical needs of market-based allocation of water ecosystem assets and the long-term preservation and appreciation of GEP. Summary of the Invention

[0005] To address the technical problems in existing technologies, such as insufficient consideration of the fluidity and public welfare characteristics of water ecosystems, inability to accurately identify and quantify their hidden and diffuse positive ecological contributions leading to undervaluation; lack of a scientific contribution separation mechanism making it difficult to distinguish the revenue sources of water ecological assets from those of other assets; lack of constraints on the preservation and appreciation of GEP after trading and development, resulting in inaccurate calculations of ecological losses and compensation; and lack of an integrated accounting logic for positive ecological contributions and negative ecological compensation, leading to one-sided and insufficiently supportive assessment results that fail to meet the practical needs of market-based allocation of water ecological assets and long-term preservation and appreciation of GEP.

[0006] The technical solution provided by this invention is as follows: A first aspect of this invention proposes a method for assessing water ecological assets based on the total value of interconnected ecological products, comprising: S1: Collect core data on aquatic ecological assets; S2: Using the excess return method, calculate the final positive ecological contribution value of water ecological assets based on core data; S3: Calculate the negative compensation value of aquatic ecological assets using the substitution cost method; S4: Calculate the final value of aquatic ecological assets by combining the final positive ecological contribution value and the negative compensation value; S5: Based on the final value, verify the GEP value preservation and appreciation constraint of the core data and obtain the verification results; S6: Based on the verification results, generate a standardized assessment report of aquatic ecological assets.

[0007] A second aspect of this invention provides a water ecological asset assessment system based on the total value of linked ecological products, comprising: a processor and a memory; A third aspect of the present invention provides a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the water ecological asset assessment method based on the total value of linked ecological products as described in the first aspect.

[0008] The beneficial effects of the technical solution provided by this invention include: By employing the excess return method, the additional ecological contributions of aquatic ecological assets are precisely extracted from total economic returns, making the previously hidden, dispersed, and difficult-to-quantify positive ecological value explicit and quantifiable, fundamentally solving the problem of undervaluation. The excess return method achieves revenue decomposition, accurately eliminating the value contributions of other assets and quantifying the core contributions of aquatic ecological assets themselves, establishing a scientific and reproducible contribution decomposition mechanism. This invention uses the constraint of no GEP decline as a rigid constraint, employs the substitution cost method to calculate the costs required for ecological restoration, determines the negative compensation value, and ensures that the compensation amount matches the degree of loss through tiered adjustments. It constructs a closed-loop mechanism for GEP preservation and appreciation after trading and development, achieving quantifiable, compensable, and monitorable ecological losses. Deeply binding value assessment with GEP accounting, it forms a complete, unified, and implementable assessment system that can directly support the practical needs of market-based trading, ecological compensation, and development and utilization of aquatic ecological assets. Attached Figure Description

[0009] Figure 1 A flowchart illustrating a water ecological asset assessment method based on the total value of linked ecological products, provided as an embodiment of the present invention; Figure 2 This is a schematic diagram of a water ecological asset assessment system based on the total value of linked ecological products, provided as an embodiment of the present invention. Detailed Implementation

[0010] Reference manual attached Figure 1 The diagram illustrates a flowchart of a water ecological asset assessment method based on the total value of linked ecological products provided by an embodiment of the present invention.

[0011] This invention provides a method for assessing water ecological assets based on the total value of interconnected ecological products, which may include the following steps: S1: Collect core data on aquatic ecological assets.

[0012] In one possible implementation, the core data specifically includes: GEP-related data, basic data on aquatic ecological assets, transaction and economic data, and ecological monitoring and restoration data.

[0013] Specifically, four types of core data are collected to build a standardized evaluation database, providing a foundation for subsequent calculations.

[0014] The specific GEP-related data includes: collecting full-caliber GEP accounting data for the assessment area, focusing on extracting water ecology-related indicators, including the accounting results, calculation parameters, and basic data (hydrological, water quality, meteorological, etc.) of the value of water ecology material supply (water resource supply, aquatic product supply), regulation service value (water quality purification, water source conservation, flood control), and cultural service value (cultural tourism, landscape enhancement).

[0015] The basic data of water ecological assets specifically includes: collecting basic information on target water ecological assets (rivers, lakes, reservoirs, etc.), including scope, water area, water depth, water quality level, aquatic biodiversity, property rights information, and existing asset management information.

[0016] Specifically, the transaction and economic data includes: collecting information on water ecological asset transaction scenarios (transaction type, transaction period, development and utilization plan), economic benefit data (such as historical and expected data on water supply benefits, aquaculture benefits, tourism benefits, etc.), and other asset-related data (basic information on non-water ecological assets such as land, facilities, and human resources, as well as data required for benefit contribution calculation).

[0017] The specific data for ecological monitoring and restoration includes: data on water ecological environment monitoring (water quality indicators, aquatic vegetation coverage, hydrological conditions, etc.) and data on water ecological restoration costs (costs required for water purification, aquatic life restoration, and source water protection).

[0018] The above data is standardized to unify data caliber, units of measurement, and quantification standards. Alternative solutions for missing data are provided to eliminate data bias and ensure data consistency and usability.

[0019] S2: Using the excess return method, calculate the final positive ecological contribution value of water ecological assets based on core data.

[0020] Among them, the excess revenue method refers to the assessment method that, after deducting the benchmark revenue that can be brought by other conventional assets such as land, facilities, and human resources from the total comprehensive revenue generated by economic activities, the remaining excess revenue is identified as the additional revenue contributed by the water ecological assets themselves, thereby quantifying their positive ecological contribution value.

[0021] In one possible implementation, S2 specifically includes sub-steps S201 to S203: S201: Calculate the preliminary contribution value of aquatic ecological assets.

[0022] Specifically, the actual comprehensive income is the combined economic income generated by the target aquatic ecological assets in synergy with other types of assets (such as land, facilities, and human resources). Using similar assessment methods, the corresponding contribution values ​​of other types of assets in this economic activity (such as the contribution value of land assets, the contribution value of facility assets, etc.) are calculated separately, and the total contribution value of other assets is obtained by summing them up.

[0023] It should be noted that by subtracting the total contribution of other assets from the actual comprehensive income to obtain the preliminary contribution value of water ecological assets, the income interference of non-water ecological assets such as land, facilities, and human resources can be accurately separated, and the value source of water ecology can be scientifically distinguished from that of other assets. This fundamentally solves the shortcomings of traditional methods that cannot quantify the true contribution of water ecology separately and are prone to undervaluation.

[0024] S202: Calculate the preliminary positive ecological contribution value based on core data and preliminary contribution value.

[0025] In one possible implementation, S202 specifically involves: combining the weights of water ecology-related indicators from the GEP-related data in the core data to quantify the preliminary contribution value and obtain a preliminary positive ecological contribution value.

[0026] It should be noted that optimizing and quantifying the preliminary contribution value based on the GEP water ecology contribution weight in the core data can effectively eliminate interference from benefits unrelated to water ecology, making the calculation results more consistent with the true contribution of water ecology itself, and significantly improving the accuracy and scientific nature of positive value accounting.

[0027] S203: Based on the market value of aquatic ecological assets, the preliminary positive ecological contribution value is revised to obtain the final positive ecological contribution value.

[0028] Specifically, by combining the weights of water ecology-related indicators in GEP accounting, the preliminary contribution value is optimized and quantified to accurately clarify the positive ecological contribution of water ecology assets to expected returns. The core formula is: Positive Ecological Contribution (EC) = Preliminary Contribution Value of Water Ecology Assets × Water ecological contribution weight (W) × Correction coefficient (K).

[0029] Among them, the preliminary contribution value of water ecological assets = Actual Comprehensive Income - Total Contribution of Other Assets, reflecting the supporting value of water ecological assets for economic activities after excluding the impact of other assets. The water ecological contribution weight (W) is determined based on the proportion of water ecological regulation service value in the regional GEP accounting, with a value range of 0 < W ≤ 1. Different water ecological types (rivers, lakes, water sources, etc.) correspond to different weights, eliminating income interference unrelated to water ecology. The correction coefficient (K) is set in conjunction with the quality and uniqueness of the water ecosystem, with a value range of 0.9-1.1. The higher the quality and the stronger the uniqueness, the closer the K value is to 1.1, and vice versa.

[0030] Specifically, the water ecological contribution weight (W) is determined based on the proportion of water ecological regulation service value in the regional GEP accounting regulation service value, using the following formula: W = Value of water ecological regulation services / Value of regional GEP regulation services Wherein, W represents the water ecosystem contribution weight. The value of water ecosystem regulation services includes the value of ecological products directly generated by the water ecosystem, such as water source conservation, water purification, flood control, carbon sequestration and oxygen release, climate regulation, and soil retention. The regional GEP regulation service value includes not only the value of water ecosystem regulation services but also the value of ecological products not directly related to the water ecosystem, such as air purification, negative oxygen ion supply, and noise reduction. The calculated value W reflects the proportion of the water ecosystem's contribution to the overall ecological value of the region.

[0031] Different aquatic ecosystems may emphasize different ecological functions (e.g., rivers emphasize hydrological regulation and water conveyance, lakes emphasize water purification and water storage, and water source areas emphasize water conservation), and their water ecological regulation service value will naturally differ, thus leading to different water ecological contribution weights (W).

[0032] This invention reserves a weight interface to support customized assignment of values ​​based on the GEP calculation results of different regions and the water ecological regulation service value of different water ecosystem types (rivers, lakes, water sources, etc.), ensuring the applicability of the method under different geographical, climatic, and water ecosystem conditions.

[0033] It should be noted that revising the preliminary positive ecological contribution value based on the market value of aquatic ecological assets can make the assessment results match the actual market conditions, asset quality and regional characteristics, effectively reduce calculation deviations, make the final positive ecological contribution value more in line with the true value, and improve the rationality and credibility of the assessment results.

[0034] Specifically, the preliminary contribution value of ecological assets is calculated.

[0035] The actual comprehensive benefits obtained from economic activities (such as water supply, aquaculture, and cultural tourism) involving the target aquatic ecological assets are collected. Using similar asset valuation methods, the contribution values ​​of other assets such as human resources, working capital, and long-term assets in these economic activities are calculated separately, and the total contribution value of other assets is obtained by summing them up.

[0036] Formula for the preliminary contribution value of ecological assets: =Actual comprehensive income - Total contribution of other assets in, This indicates the initial contribution value of ecological assets.

[0037] Specifically, the actual comprehensive income is the sum of the expected annual net income from existing or anticipated near-term activities in the assessment area, discounted to the current time point using an appropriate capitalization rate. The calculation formula is as follows:

[0038] in, P Indicates actual comprehensive income. A Represents the annual net income from economic activity. r Indicates the capitalization rate. n Indicates the benefit period.

[0039] Specifically, the total contribution of other assets typically includes contributions from non-ecological resources such as human resources, working capital, and long-term assets.

[0040] Specifically, the formula for calculating the contribution value of human resources is as follows:

[0041] in, Indicates the contribution value of human resources. F hr This indicates the investment of funds in human resources. r hr It represents the return on investment in human resources, which is determined by comprehensively considering relevant industry data and industry operations.

[0042] Specifically, the formula for calculating the working capital contribution value is as follows:

[0043] in, Indicates the contribution value of working capital. F op Indicates working capital. r op This indicates the return on working capital.

[0044] Specifically, the formula for calculating the contribution value of long-term assets is as follows:

[0045] in, Indicates the contribution value of long-term assets. F zj This represents long-term asset depreciation, calculated using the annual depreciation rate of fixed assets. F a This indicates the amount of long-term asset investment. r op It represents the long-term return on asset investment, calculated using the five-year LPR rate of 3.50% published by the People's Bank of China.

[0046] In the actual assessment process, it is necessary to combine the economic activities to determine whether there are other non-ecological resource contributions. If so, a similar method should be used to calculate the product of funds and rate of return to determine the contribution amount.

[0047] Based on the weights of GEP water ecological indicators, the preliminary positive ecological contribution value of water ecology is calculated.

[0048] Extracting the weights of water-related indicators from GEP accounting from core data. W : Preliminary positive ecological contribution value = × W Among them, the water ecological contribution weight ( W The proportion of water ecological regulation service value in the regional GEP accounting regulation service value is determined by the following formula: W =Value of water ecological regulation services / Value of regional GEP regulation services The value of water ecological regulation services includes the value of ecological products directly generated by the aquatic ecosystem, such as water source conservation, water purification, flood control, carbon sequestration and oxygen release, climate regulation, and soil conservation. The value of regional GEP (Genomic Ecosystem Product) regulation services, in addition to the value of water ecological regulation services, also includes the value of ecological products not directly related to the aquatic ecosystem, such as air purification, negative oxygen ion supply, and noise reduction. The calculated value W reflects the proportion of the aquatic ecosystem's contribution to the overall ecological value of the region.

[0049] The final positive ecological contribution value is obtained by combining market value and asset quality.

[0050] A correction factor K (ranging from 0.9 to 1.1) is introduced, set based on water quality level, biodiversity, and ecological uniqueness. The higher the quality and the stronger the uniqueness of the aquatic ecological assets, the closer the K value is to 1.1; conversely, it is closer to 0.9. The specific formula is as follows:

[0051] in, ECIndicates the positive ecological contribution value. W Indicates the weight of water ecological contribution. K This represents the correction factor.

[0052] The data required for each of the above steps are supported by the four types of core data (GEP accounting data, basic water ecological asset data, transaction and economic data, and ecological monitoring and restoration data) collected in step S1 of this invention, which has complete operability and reproducibility.

[0053] Specifically, the calculation basis for each parameter is as follows: (Preliminary Contribution Value): Derived from the excess return method. This method has mature applications in natural resource assets, environmental economics, and international asset valuation standards, and is used to separate the contribution of specific assets from total revenue. This invention innovatively applies it to the field of aquatic ecological assets.

[0054] W (Water Ecological Contribution Weight): Derived from the GEP accounting system. GEP is a standardized ecological accounting indicator in national and local ecological civilization construction. This invention uses the proportion of water ecological regulation service value as the weight to accurately extract the proportion of water ecosystem value in regional ecological value, ensuring that the quantification of ecological contribution complies with current policies and scientific standards.

[0055] K (Adjustment Factor): Derived from the principle of adjusting individual factors in asset valuation. In conventional asset valuation, factors such as quality, scarcity, and market conditions are often adjusted using adjustment factors. This invention incorporates the K value based on the unique characteristics of aquatic ecological assets (such as water quality level, biodiversity, and aquatic ecosystem quality) to make the valuation results more closely reflect their actual value.

[0056] In summary, this formula is supported by economic theory, ecological product value accounting standards, and asset appraisal norms.

[0057] In this embodiment of the invention, the excess return method is adopted and the final positive ecological contribution value is calculated in full based on core data. This method can systematically isolate the interference of other assets, combine GEP weights and market value for step-by-step calibration, and fully reflect the real value brought by the fluidity and public welfare of water ecology, thereby greatly improving the accuracy, objectivity and market applicability of the assessment results.

[0058] S3: Calculate the negative compensation value of aquatic ecological assets using the substitution cost method.

[0059] The alternative cost method refers to a method that quantifies and calculates the compensation value corresponding to ecological losses based on the costs of various engineering, governance, and maintenance required to restore the damaged aquatic ecosystem to its original ecological function and restore it to the GEP benchmark level before the transaction.

[0060] In one possible implementation, S3 specifically includes sub-steps S301 to S303: S301: Based on the transaction and development schemes of water ecological assets, identify the negative impact of development activities on GEP-related data in the core data.

[0061] Specifically, based on the trading and development plans of aquatic ecological assets, combined with ecological monitoring data and GEP accounting rules, the potential damage to the aquatic ecosystem caused by this behavior (such as water quality deterioration, water volume reduction, and decline in aquatic biodiversity) is predicted, and the type, degree, and scope of the negative impact of this damage on the regional GEP are clarified.

[0062] It should be noted that by accurately identifying the negative impact of development activities on GEP based on the transaction development plan and core data, the trend of ecological risks and value loss can be predicted in advance, providing a reliable basis for setting subsequent restoration targets and calculating compensation values, and ensuring that the entire assessment process is rigorous and controllable and that risks are quantifiable.

[0063] S302: Determine ecological restoration goals based on negative impacts.

[0064] Specifically, with the core objective of "restoring the damaged aquatic ecosystem and bringing it back to the pre-trade GEP level", specific requirements for restoration are defined (such as restoring water quality to its original level and aquatic biomass to the baseline value).

[0065] It should be noted that ecological restoration goals should be clearly defined based on the identified negative impacts, with the core orientation of restoring the pre-trade GEP benchmark level. This ensures that restoration standards are clear and highly targeted, providing a unified and feasible quantitative basis for subsequent compensation calculations, and avoiding unreasonable compensation issues caused by ambiguous restoration goals.

[0066] S303: Calculate the negative compensation value of ecological restoration targets using the substitution cost method.

[0067] Specifically, with the preservation and appreciation of GEP as a constraint, the substitution cost method is used to accurately measure the adverse impact of water ecological asset transactions and development activities on GEP, and then determine the negative compensation value.

[0068] Specifically, comparing the pre-transaction GEP holdings before the implementation of economic activities. And the post-transaction GEP holdings (GEP'), if If so, a negative compensation value (NC) needs to be calculated and included in the value of aquatic ecological assets. This cost should be borne by market entities to reflect the ecological protection orientation in the process of realizing the value of aquatic ecological products.

[0069] like The formula for calculating the Negative Compensation Value (NC) is as follows: Negative Compensation Value (NC) = Ecological Environment Restoration Cost (R) × Compensation Coefficient (C) Where R represents the cost of ecological environment restoration, including the costs of main equipment, materials, project implementation, monitoring, supervision, quality control, safety protection, and prevention of secondary pollution or damage, calculated using the restoration cost method. The compensation coefficient (C) is set according to the level of negative impact: C is 1.0-1.2 for mild impact, 1.2-1.5 for moderate impact, and 1.5-2.0 for severe impact, ensuring that the compensation covers the cost of ecological restoration.

[0070] The formula mandates that "post-transaction GEP holdings ≥ pre-transaction GEP holdings," stemming from the ecological protection red line system and GEP value preservation and appreciation policies. This invention uses this as a rigid constraint mechanism, achieving for the first time in asset valuation methods a technical guarantee that ecological value will not decline.

[0071]

[0072] Post-transaction GEP holdings (GEP') = Pre-transaction GEP holdings -GEP loss (ΔGEP) + Negative compensation value (NC) Among them, ΔGEP (GEP loss) is the amount of regional GEP decline caused by transactions or development activities, which is quantitatively calculated by combining GEP accounting data with the degree of water ecological damage. This indicator comes from national and local GEP accounting technical specifications.

[0073] C (Compensation Coefficient): Set according to the level of ecological damage. Based on the logic of graded compensation, the negative impact is divided into three levels: mild, moderate, and severe, with corresponding compensation coefficients of 1.0~1.2, 1.2~1.5, and 1.5~2.0, respectively. This setting ensures that the compensation amount can cover the actual restoration cost.

[0074] It should be noted that using the alternative cost method to accurately calculate the negative compensation value required to meet the ecological restoration goals can quantify ecological losses with objective and calculable cost data, making the compensation amount based on evidence and fair and reasonable, effectively avoiding the deviation caused by subjective estimation, and providing solid data support for the preservation and appreciation of GEP.

[0075] In this embodiment of the invention, the substitution cost method is used to complete the entire process of calculating the negative compensation value. This method can objectively quantify the ecological damage caused by development, constrain transaction behavior with rigid restoration costs, and ensure that the compensation amount is reasonable, implementable, and verifiable. This mechanism guarantees that GEP is not lost and ecological functions are not degraded.

[0076] In one possible implementation, after S3 and before S4, the following is also included: Based on the level of negative impact and the amount of core data loss, the negative compensation value is graded and adjusted.

[0077] Specifically, the loss of core data refers to the decrease in regional GEP caused by transactions or development activities.

[0078] The amount of core data loss was calculated by combining GEP accounting data with the degree of water ecological damage.

[0079] Specifically, the formula for calculating the negative compensation value is as follows: Negative compensation value (NC) = GEP loss (ΔGEP) × compensation coefficient (C) The GEP loss (ΔGEP) represents the decrease in regional GEP caused by transactions and development activities, calculated from GEP accounting data combined with the degree of water ecological damage. The compensation coefficient (C) is set according to the level of negative impact: C is 1.0-1.2 for mild impact, 1.2-1.5 for moderate impact, and 1.5-2.0 for severe impact, ensuring that compensation covers the cost of ecological restoration. The supplementary constraint formula is: Post-transaction GEP (GEP') = Pre-transaction GEP -GEP loss (ΔGEP) + negative compensation value (NC) to ensure To achieve the preservation and appreciation of GEP.

[0080] In this embodiment of the invention, the negative compensation value is graded and corrected by the level of negative impact and the amount of GEP loss, and a corresponding GEP retention constraint formula is used to ensure that the compensation amount is accurately matched with the degree of ecological damage, effectively covering the restoration cost, and ensuring from a mechanism perspective that GEP does not decrease after the transaction, thus achieving a rigid constraint on value preservation and appreciation.

[0081] S4: Combine the final positive ecological contribution value and the negative compensation value to calculate the final value of aquatic ecological assets.

[0082] In this embodiment of the invention, the final positive ecological contribution value and the negative compensation value are combined to calculate the final value of the asset, and an integrated accounting logic of "positive value + compensation guarantee" is constructed to fully reflect the true and complete value of the water ecology, making the assessment results more scientific and fair, and directly supporting market transactions and ecological regulatory decisions.

[0083] S5: Based on the final value, verify the GEP value preservation and appreciation constraint of the core data and obtain the verification results.

[0084] Specifically, the verification results include: pass and fail.

[0085] In one possible implementation, S5 specifically includes sub-steps S501 and S502: S501: Calculate the post-transaction GEP holdings by combining the final value and core data.

[0086] It should be noted that by accurately calculating the GEP holdings after the transaction based on the final value and core data, the actual impact of the transaction development on the regional total ecological value can be intuitively quantified. This provides a clear and quantifiable core basis for verifying the preservation and appreciation of GEP, and enhances the rigor and persuasiveness of the assessment results.

[0087] S502: Determine whether the GEP holdings after the transaction are greater than or equal to the GEP holdings before the transaction. If yes, the verification result is qualified. Otherwise, the verification result is unqualified.

[0088] Specifically, the positive ecological contribution (EC) reflects the positive value of aquatic ecological assets, while the negative compensation (NC) is the necessary investment to ensure the restoration of aquatic ecosystems and realize the preservation and appreciation of GEP. Together, they constitute the complete value of aquatic ecological assets. There is no need to limit the size of NC and EC during accounting; the key is to ensure that the post-transaction GEP holdings (GEP') are greater than or equal to the pre-transaction GEP holdings. At the same time, the development plan and compensation investment should be reasonably adjusted according to the actual transaction scenario to ensure that the assessment results are consistent with the actual value of water ecological assets and the needs for sustainable utilization.

[0089] The accounting results will be linked with regional GEP data to verify the supporting role of water ecological asset value in GEP after the transaction, ensuring that the transaction will not lead to a decline in regional GEP and achieving GEP preservation and appreciation. If the accounting results fail to meet the requirements for GEP preservation and appreciation, the negative compensation value and development plan will be adjusted until the constraints are met.

[0090] It should be noted that by directly comparing the GEP holdings before and after the transaction, a clear and quantifiable rigid verification standard is formed. This allows for an intuitive determination of whether the ecological value has been preserved and increased, avoiding subjective judgments and providing a clear and reliable basis for judging the compliance of the transaction and the sustainability of the ecosystem.

[0091] S6: Based on the verification results, generate a standardized assessment report of aquatic ecological assets.

[0092] Specifically, it outputs the positive ecological contribution value, negative compensation value, and final asset value of water ecological assets, generates standardized assessment reports, clarifies the assessment basis, calculation process, GEP linkage verification results, negative impacts, and compensation plans, and provides accurate decision support for water ecological asset transactions, ecological compensation, and development and utilization.

[0093] In this embodiment of the invention, a standardized assessment report is generated based on the verification results, which can present the accounting process, value results and GEP compliance in a unified manner. The report has a standardized format, traceable data and intuitive conclusions, which can not only support transaction decisions, but also facilitate the verification and promotion of applications by ecological authorities.

[0094] Reference manual attached Figure 2 This diagram illustrates a structural schematic of a water ecological asset assessment system based on the total value of linked ecological products, provided by an embodiment of the present invention.

[0095] This invention provides a water ecological asset assessment system 20 based on the total value of linked ecological products, comprising: a processor 201 and a memory 202; The memory 202 stores programs or instructions that can run on the processor 201. When the program or instructions are executed by the processor 201, they implement the steps of the above-mentioned water ecological asset assessment method based on the total value of linked ecological products and achieve the same technical effect. To avoid repetition, the present invention will not elaborate further.

[0096] This invention provides a readable storage medium comprising: storing a program or instructions on the readable storage medium, wherein when the program or instructions are executed by a processor, the program or instructions implement the steps of the above-described water ecological asset assessment method based on the total value of linked ecological products, and can achieve the same technical effect. To avoid repetition, this invention will not elaborate further.

[0097] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for assessing water ecological assets based on the total value of interconnected ecological products, characterized in that, include: S1: Collect core data on aquatic ecological assets; S2: Using the excess return method, calculate the final positive ecological contribution value of the water ecological assets based on the core data; S3: Calculate the negative compensation value of the aforementioned aquatic ecological assets using the substitution cost method; S4: Calculate the final value of the water ecological assets by combining the final positive ecological contribution value and the negative compensation value; S5: Based on the final value, verify the GEP value preservation and appreciation constraint of the core data, and obtain the verification result; S6: Based on the verification results, generate a standardized assessment report for the water ecological assets; S2 specifically includes: S201: Calculate the preliminary contribution value of the aforementioned aquatic ecological assets; S202: Based on the core data and the preliminary contribution value, calculate the preliminary positive ecological contribution value; S203: Based on the market value of the aforementioned aquatic ecological assets, the preliminary positive ecological contribution value is revised to obtain the final positive ecological contribution value; S3 specifically includes: S301: Based on the transaction and development plan of the aforementioned water ecological assets, identify the negative impact of development activities on the GEP-related data in the core data; S302: Determine ecological restoration objectives based on the aforementioned negative impacts; S303: Calculate the negative compensation value of the ecological restoration target using the substitution cost method.

2. The water ecological asset assessment method based on the total value of interconnected ecological products according to claim 1, characterized in that, The core data specifically includes: GEP-related data, basic data on aquatic ecological assets, transaction and economic data, and ecological monitoring and restoration data.

3. The water ecological asset assessment method based on the total value of interconnected ecological products according to claim 1, characterized in that, Specifically, S202 involves quantifying the preliminary contribution value by combining the weights of water ecology-related indicators in the GEP-related data of the core data, thereby obtaining the preliminary positive ecological contribution value.

4. The water ecological asset assessment method based on the total value of interconnected ecological products according to claim 1, characterized in that, The following is included after S3 and before S4: Based on the level of negative impact and the amount of loss of the core data, the negative compensation value is graded and corrected.

5. A method for assessing water ecological assets based on the total value of interconnected ecological products according to claim 4, characterized in that, The loss specifically refers to the decrease in regional GEP caused by transactions or development activities.

6. The water ecological asset assessment method based on the total value of interconnected ecological products according to claim 1, characterized in that, The verification results include: qualified and unqualified; S5 specifically includes: S501: Calculate the GEP holdings after the transaction based on the final value; S502: Determine whether the GEP holding amount after the transaction is greater than or equal to the GEP holding amount before the transaction; if so, the verification result is qualified; otherwise, the verification result is unqualified.

7. A water ecological asset assessment system based on the total value of interconnected ecological products, characterized in that, include: Processor and memory; The memory stores programs or instructions that can run on the processor, and when the program or instructions are executed by the processor, they implement the steps of the water ecological asset assessment method based on the total value of linked ecological products as described in any one of claims 1 to 6.

8. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the water ecological asset assessment method based on the total value of interconnected ecological products as described in any one of claims 1 to 6.

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