Method for determining drainage right differentiation transaction ratio of water-resource-deficient type drainage basin

Abstract

The invention discloses a water-resource-deficient drainage basin discharge right differentiated transaction ratio determination method, and relates to the technical field of environmental protection. Comprising the following steps: identifying a water body functional area where two transaction parties are located, if the water quality of the functional area where the transaction parties are located reaches the standard, carrying out cross-functional area pollution discharge right transaction, and if the water quality does not reach the standard, carrying out pollution discharge right transaction in the functional area; the industry categories of the two transaction parties are identified, cross-industry emission right transaction is carried out on industries with similar sewage properties, and otherwise, intra-industry emission right transaction is carried out; and determining a transaction ratio according to different scenes. The method can effectively reflect the differentiation value of the drainage right under different water functional areas, different water resource supply-demand ratios, different industries and different geographic positions of the water resource deficient type drainage basin, thereby promoting the effective, orderly and fair development of drainage basin drainage right transactions, and having a relatively high application value.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection, and more specifically, to a method for determining the differential trading ratio of pollutant discharge rights in water resource - scarce basins. Background Art

[0002] Water pollutants have obvious non - uniform distribution characteristics. Due to the functions of river dilution and self - purification, pollution sources downstream may cause more serious environmental hazards than those upstream. Pollutant discharge right trading needs to consider the migration and transformation of pollutants in water bodies and the spatial heterogeneity of pollutants, avoid the concentrated discharge of water pollutants in local areas, solve the "hot spot" problem of water pollution discharge trading in space, and also consider factors such as the location of pollution sources, the functional characteristics of water bodies, the requirements for meeting water environmental quality standards, and the regional economic development status. Generally, it is considered that setting a trading ratio can ensure that different pollution sources have the same environmental impact after pollutant discharge right trading, which is an effective means to achieve the optimal allocation of pollutant discharge rights.

[0003] However, existing research on trading ratios mainly focuses on the location effect of pollution sources and its implementation effect, and rarely comprehensively considers geographical location, water environmental function zoning, and industry categories; for water resource - scarce basins, the water resource supply - demand ratio in different regions should also be an important consideration factor in pollutant discharge right trading.

[0004] Therefore, proposing a method for determining the differential trading ratio of pollutant discharge rights in water resource - scarce basins to solve the difficulties existing in the prior art is an urgent problem for those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a method for determining the differential trading ratio of pollutant discharge rights in water resource - scarce basins to solve the technical problems existing in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A method for determining the differential trading ratio of pollutant discharge rights in water resource - scarce basins includes the following steps:

[0008] S1. Identify the water body functional areas where the trading parties are located. If the water quality in the functional area where the trading party is located meets the standards, cross - functional - area pollutant discharge right trading is carried out; if the water quality does not meet the standards, pollutant discharge right trading within the functional area is carried out;

[0009] S2. Identify the industry categories of the trading parties. Cross - industry pollutant discharge right trading is carried out for industries with similar sewage properties; otherwise, pollutant discharge right trading within the industry is carried out;

[0010] S3. Determine the trading ratio according to different scenarios.

[0011] For the above method, optionally, the specific content in S3 is as follows:

[0012] S31. If the two trading parties belong to the same industry and are located in the same water function zone, the pollution rights trading ratio only considers the water resource supply-demand ratio and the location ratio of the emission sources;

[0013] S32. If the two trading parties conduct intra-industry pollution rights trading across water function zones, the trading ratio considers the water resource supply-demand ratio, the location ratio of the emission sources, and the water function zoning trading ratio;

[0014] S33. If the two trading parties conduct cross-industry pollution rights trading within the same water function zone, the trading ratio considers the water resource supply-demand ratio, the location ratio of the emission sources, and the industry trading ratio;

[0015] S34. If the two trading parties conduct cross-industry pollution rights trading across water function zones, the trading ratio considers the water resource supply-demand ratio, the location ratio of the emission sources, the water function zoning trading ratio, and the industry trading ratio.

[0016] For the above method, optionally, in S31, if the two trading parties belong to the same industry and are located in the same water function zone, the calculation formula for the pollution rights trading ratio that only considers the water resource supply-demand ratio and the location ratio of the emission sources is:

[0017]

[0018] Wherein, is the trading ratio for economic sector j to purchase 1 unit of pollutant i from sector m, r m is the water resource supply-demand ratio of the region where sector m is located, r j is the water resource supply-demand ratio of the region where sector j is located, is the location trading ratio for sector j to purchase pollutant i from sector m.

[0019] For the above method, optionally, in S32, if the two trading parties conduct intra-industry pollution rights trading across water function zones, the calculation formula for the trading ratio that considers the water resource supply-demand ratio, the location ratio of the emission sources, and the water function zoning trading ratio is:

[0020]

[0021] Wherein, is the trading ratio for economic sector j to purchase 1 unit of pollutant i from sector m, r m is the water resource supply-demand ratio of the region where sector m is located, r j is the water resource supply-demand ratio of the region where sector j is located, is the location trading ratio for sector j to purchase pollutant i from sector m, is the water function zoning trading ratio.

[0022] In the above method, optionally, if the trading parties conduct cross-industry pollution discharge right trading within the same water body functional area in S33, the calculation formula for the trading ratio considering the water resource supply-demand ratio, the location ratio of the emission sources, and the industry trading ratio is as follows:

[0023]

[0024] Among them, is the trading ratio for economic sector j to purchase 1 unit of pollutant i from sector m, r m is the water resource supply-demand ratio of the region where sector m is located, r j is the water resource supply-demand ratio of the region where sector j is located, is the location trading ratio for sector j to purchase pollutant i from sector m, is the industry trading ratio.

[0025] In the above method, optionally, if the trading parties conduct cross-industry pollution discharge right trading across water body functional areas in S34, the calculation formula for the trading ratio considering the water resource supply-demand ratio, the location ratio of the emission sources, the water function zoning trading ratio, and the industry trading ratio is as follows:

[0026]

[0027] Among them, is the trading ratio for economic sector j to purchase 1 unit of pollutant i from sector m, r m is the water resource supply-demand ratio of the region where sector m is located, r j is the water resource supply-demand ratio of the region where sector j is located, is the location trading ratio for sector j to purchase pollutant i from sector m, is the water function zoning trading ratio, is the industry trading ratio.

[0028] As can be seen from the above technical solutions, compared with the prior art, the present invention discloses a method for determining the differential trading ratio of pollution discharge rights in a water resource scarce basin, and its beneficial effects are as follows:

[0029] Applying this technical solution to calculate the trading ratio makes up for the deficiencies of the current trading ratio calculation method, can effectively reflect the differential value of pollution discharge rights under different water body functional areas, different water resource supply-demand ratios, different industries, and different geographical locations in a water resource scarce basin, thereby promoting the effective, orderly, and fair development of basin pollution discharge right trading, and has strong application value. Description of the Drawings

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on the provided drawings.

[0031] Figure 1 It is a flowchart of a method for determining the differentiated trading ratio of pollution discharge rights in a water resource - scarce basin provided by the present invention. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] See Figure 1 As shown, the present invention discloses a method for determining the differentiated trading ratio of pollution discharge rights in a water resource - scarce basin, including the following steps:

[0034] S1. Identify the water body function areas where the trading parties are located. If the water quality in the function area where the trading party is located meets the standard, cross - function - area pollution discharge right trading is carried out; if the water quality does not meet the standard, pollution discharge right trading within the function area is carried out.

[0035] S2. Identify the industry categories of the trading parties. Cross - industry pollution discharge right trading is carried out for industries with similar sewage properties; otherwise, pollution discharge right trading within the industry is carried out.

[0036] S3. Determine the trading ratio according to different scenarios.

[0037] Further, the specific content of different scenarios in S3 is as follows:

[0038] S31. If the trading parties belong to the same industry and are located in the same water function area, the pollution discharge right trading ratio only considers the water resource supply - demand ratio and the location ratio of the emission sources.

[0039] S32. If the trading parties conduct intra - industry pollution discharge right trading across water body function areas, the trading ratio considers the water resource supply - demand ratio, the location ratio of the emission sources, and the water function area division trading ratio.

[0040] S33. If the trading parties conduct cross - industry pollution discharge right trading within the same water body function area, the trading ratio considers the water resource supply - demand ratio, the location ratio of the emission sources, and the industry trading ratio.

[0041] S34. If the two trading parties conduct cross - industry pollution discharge right trading across water body function zones, the trading ratio shall consider the water resource supply - demand ratio, the location ratio of emission sources, the trading ratio of water function zoning, and the industry trading ratio.

[0042] Furthermore, in S31, if the two trading parties belong to the same industry and are located in the same water function zone, the calculation formula for the pollution discharge right trading ratio considering only the water resource supply - demand ratio and the location ratio of emission sources is:

[0043]

[0044] Among them, is the trading ratio for economic sector j to purchase 1 unit of pollutant i from sector m, r m is the water resource supply - demand ratio of the region where sector m is located, r j is the water resource supply - demand ratio of the region where sector j is located, is the location trading ratio for sector j to purchase pollutant i from sector m.

[0045] Furthermore, in S32, if the two trading parties conduct intra - industry pollution discharge right trading across water body function zones, the calculation formula for the trading ratio considering the water resource supply - demand ratio, the location ratio of emission sources, and the trading ratio of water function zoning is:

[0046]

[0047] Among them, is the trading ratio for economic sector j to purchase 1 unit of pollutant i from sector m, r m is the water resource supply - demand ratio of the region where sector m is located, r j is the water resource supply - demand ratio of the region where sector j is located, is the location trading ratio for sector j to purchase pollutant i from sector m, is the trading ratio of water function zoning.

[0048] Furthermore, in S33, if the two trading parties conduct cross - industry pollution discharge right trading within the same water body function zone, the calculation formula for the trading ratio considering the water resource supply - demand ratio, the location ratio of emission sources, and the industry trading ratio is:

[0049]

[0050] Among them, is the trading ratio for economic sector j to purchase 1 unit of pollutant i from sector m, r m is the water resource supply - demand ratio of the region where sector m is located, r j is the water resource supply - demand ratio of the region where sector j is located, is the location trading ratio for sector j to purchase pollutant i from sector m, It is the industry trading ratio.

[0051] Furthermore, in S34, if the two trading parties conduct cross - industry pollution rights trading across water body function zones, the trading ratio takes into account the water resource supply - demand ratio, the location ratio of emission sources, the trading ratio of water function zoning, and the formula for the industry trading ratio is:

[0052]

[0053] Among them, is the trading ratio for economic sector j to purchase 1 unit of pollutant i from sector m, r m is the water resource supply - demand ratio of the region where sector m is located, r j is the water resource supply - demand ratio of the region where sector j is located, is the location trading ratio for sector j to purchase pollutant i from sector m, is the trading ratio of water function zoning, is the industry trading ratio.

[0054] In a specific embodiment, based on the basic situations such as water resource shortage in the upper and middle reaches of the Yellow River, diverse water environment function zones, and involving multiple economic sectors, the calculation of the trading ratio mainly considers variables such as the location of economic sectors, the category of water function zones they are in, the regional water resource supply - demand ratio, and the types of industries;

[0055]

[0056] Among them, is the trading ratio for economic sector j to purchase 1 unit of pollutant i from sector m, r m is the water resource supply - demand ratio of the region where sector m is located, r j is the water resource supply - demand ratio of the region where sector j is located, is the location trading ratio for sector j to purchase pollutant i from sector m, is the trading ratio of water function zoning, is the industry trading ratio.

[0057] Referring to the existing research on location trading ratios,

[0058]

[0059] Among them, k i is the decay coefficient of pollutant i, μ is the water flow velocity, and x is the difference in the distances of sectors j and m from the downstream section.

[0060] According to the principle of "the same equivalent pollution load value", determine the pollution rights trading ratio based on the water environment function zoning, that is, in principle, the two trading parties should ensure that the equivalent pollution load of the pollutants discharged before and after the transaction is the same, and the size of the trading ratio is equal to the water quality standard of the water function zone where the polluter's discharge outlet is located (Sm ) The ratio with the water quality standard (S j ) of the water function zone where the transferee's sewage outlet is located, that is,

[0061]

[0062] According to the general theoretical method of the trading ratio of water pollutant emission rights, a calculation formula for the industry trading ratio reflecting the impact degree of different emission sources on water bodies is established, that is,

[0063]

[0064] Among them, ρ i,m and ρ i,j are the current emission concentrations of pollutant i in departments m and j, Q i,m and Q i,j are the volumes of the discharged water bodies, D i,m and D i,j are the equivalent values of unit pollutant i, and R is the unit conversion coefficient.

[0065] If the two trading parties belong to the same industry and are located in the same water function zone, the trading ratio of emission rights only considers the water resource supply-demand ratio and the location ratio of the emission source; otherwise, it is necessary to consider the regional water resource supply-demand ratio, location ratio and / or the trading ratio of water function zoning and / or the industry trading ratio at the same time.

[0066] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method part.

[0067] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for determining the differential trading ratio of pollutant discharge rights in a water resource - scarce basin, characterized in that, It includes the following steps: S1. Identify the water body function areas where the two trading parties are located. If the water quality in the function area where the trading party is located meets the standard, cross-functional area pollutant discharge right trading is carried out; if the water quality does not meet the standard, pollutant discharge right trading within the function area is carried out. S2. Identify the industrial categories of the two trading parties. Cross-industry pollutant discharge right trading is carried out for industries with similar sewage properties; otherwise, intra-industry pollutant discharge right trading is carried out. S3. Determine the trading ratio according to different scenarios.

2. The method for determining the differentiated trading ratio of pollution discharge rights in a water resource - scarce basin according to claim 1, characterized in that The specific content of different scenarios in S3 is as follows: S31. If the two trading parties belong to the same industry and are located in the same water function area, the pollutant discharge right trading ratio only considers the water resource supply-demand ratio and the location ratio of the emission sources. S32. If the two trading parties conduct intra-industry pollutant discharge right trading across water body function areas, the trading ratio considers the water resource supply-demand ratio, the location ratio of the emission sources, and the water function zoning trading ratio. S33. If the two trading parties conduct cross-industry pollutant discharge right trading within the same water body function area, the trading ratio considers the water resource supply-demand ratio, the location ratio of the emission sources, and the industry trading ratio. S34. If the two trading parties conduct cross-industry pollutant discharge right trading across water body function areas, the trading ratio considers the water resource supply-demand ratio, the location ratio of the emission sources, the water function zoning trading ratio, and the industry trading ratio.

3. A method for determining the differentiated trading ratio of pollution discharge rights in a water resource - scarce basin according to claim 2, characterized in that, When the two trading parties belong to the same industry and are located in the same water function area in S31, the calculation formula for the pollutant discharge right trading ratio that only considers the water resource supply-demand ratio and the location ratio of the emission sources is: Among them, is the transaction ratio of economic sector j purchasing 1 unit of pollutant i from sector m, r m is the water resource supply-demand ratio in the region where sector m is located, r j is the water resource supply-demand ratio in the region where sector j is located, is the location transaction ratio of sector j purchasing pollutant i from sector m.

4. A method for determining the differentiated trading ratio of pollutant discharge rights in a water resource - scarce basin according to claim 2, characterized in that When the two trading parties conduct intra-industry pollutant discharge right trading across water body function areas in S32, the calculation formula for the trading ratio that considers the water resource supply-demand ratio, the location ratio of the emission sources, and the water function zoning trading ratio is: Among them, is the transaction ratio for economic sector j to purchase 1 unit of pollutant i from sector m, r m is the water resource supply-demand ratio in the region where sector m is located, r j is the water resource supply-demand ratio in the region where sector j is located, is the location transaction ratio for sector j to purchase pollutant i from sector m, is the water function zoning transaction ratio.

5. A method for determining the differentiated trading ratio of pollution discharge rights in a water resource - scarce basin according to claim 2, characterized in that, When the two trading parties conduct cross-industry pollutant discharge right trading within the same water body function area in S33, the calculation formula for the trading ratio that considers the water resource supply-demand ratio, the location ratio of the emission sources, and the industry trading ratio is: Among them, is the transaction ratio of economic sector j purchasing 1 unit of pollutant i from sector m, r m is the water resource supply-demand ratio in the region where sector m is located, r j is the water resource supply-demand ratio in the region where sector j is located, is the location transaction ratio of sector j purchasing pollutant i from sector m, is the industry transaction ratio.

6. The method for determining the differentiated trading ratio of pollutant discharge rights in a water resource - scarce basin according to claim 2, wherein, When the two trading parties conduct cross-industry pollutant discharge right trading across water body function areas in S34, the calculation formula for the trading ratio that considers the water resource supply-demand ratio, the location ratio of the emission sources, the water function zoning trading ratio, and the industry trading ratio is: Among them, is the transaction ratio of department j in the economic sector purchasing 1 unit of pollutant i from department m, r m is the water resource supply-demand ratio in the region where department m is located, r j is the water resource supply-demand ratio in the region where department j is located, is the location transaction ratio of department j purchasing pollutant i from department m, is the water function zoning transaction ratio, is the industry transaction ratio.

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