Water transfer method based on ecological water income and pollution balance

Abstract

The invention discloses a water transfer method based on ecological water income and pollution balance, which comprises the following steps: determining a water transfer research area, acquiring water users in the water transfer research area, and extracting the water users using ecological water at present as an initial participant set N; establishing an ecological water income model and a Shapley function of each water user i in an ecological water scheduling process, and calculating an ecological water distribution amount Ei of each water user i based on an ecological water consumption and benefit distribution function; calculating an ecological income coefficient Si to the environment in the ecological water consumption process according to the ecological water distribution amount Ei; calculating an ecological pollution coefficient Xi according to a pollution emission coefficient in the process that the water user i uses the ecological water; and constructing an ecological income model, and optimizing an ecological consumption path in the process that the water user i uses the ecological water. Aiming at the prominent problem of ecological management, the invention solves the defect of imbalance between ecological benefits and ecological pollution in the ecological water transfer process.

Description

Technical Field

[0001] The present invention relates to the field of ecological optimization, and in particular to a water regulation method based on the balance between ecological water use benefits and pollution. Background Art

[0002] In order to cope with the threat of ecological deterioration to human health, economic activities and future generations, ecological water resources must be appropriately allocated at the right time to ensure ecological sustainability. According to the economic theory of scarce resource allocation, water resource allocation must achieve economic efficiency, social equity and environmental sustainability. Ecological water resource utilization efficiency and equity are the core of scarce resource allocation, which significantly affects the water withdrawal results of water users with different power levels and water demand. When seeking the optimal ecological water resource allocation, sustainability must guide practical decision-making.

[0003] In the process of comprehensive ecological water dispatch and allocation, there are significant problems such as large scope and obvious regional differences. In addition, the ecological water dispatch process in existing technologies only considers ecological benefits, and often ignores the ecological pollution caused by the ecological water dispatch process, resulting in negative effects. Therefore, it is urgent to propose a water dispatch method based on the balance between ecological water use benefits and pollution. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a water transfer method based on the balance between ecological water use benefits and pollution, which solves the problem of imbalance between ecological benefits and ecological pollution in the process of ecological water transfer.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0006] A water transfer method based on ecological water use benefits and pollution balance is provided, which comprises the following steps:

[0007] S1: Determine the water transfer study area, obtain water users in the water transfer study area, and extract water users who are currently using ecological water as the initial participant set N, N = (1, 2, ..., n), n is the number of water users in the initial parameter set N;

[0008] S2: Establish the benefit model of ecological water use and the Shapley function of each water user i in the process of ecological water use scheduling. Based on the allocation function of ecological water use and benefits, calculate the ecological water allocation E for each water user i i ;

[0009] S3: According to the ecological water allocation E i Calculate the ecological benefit coefficient S of the environment during ecological water consumption i ;

[0010] S4: Calculate the ecological pollution coefficient X according to the pollution emission coefficient of water user i in the process of using ecological water. i ;

[0011] S5: Construct an ecological benefit model and set the optimal value of the ecological benefit coefficient ΔS max , optimize the ecological consumption path of water user i in the process of using ecological water.

[0012] Further, step S2 includes:

[0013] S21: The probability s of different water users using ecological water in the water use process i , and the corresponding ecological water allocation e i Establish a benefit model for ecological water use in the process of ecological water diversion;

[0014]

[0015] Among them, v(.) is the benefit distribution function, s1 is the probability of a water user using ecological water, i is the number of the water user, e 1 is the ecological water allocation for one water user, w s (1) is the ecological water use benefit of a water user, w s (1,2) is the ecological water use benefit of the two water users, e 1 、e 2 is the ecological water allocation of the two water users, s2 and s1 are the probabilities of the two water users using ecological water, T is the set of user participants who newly use ecological water in the process of ecological water diversion, and w s (T) is the ecological water use benefit of water users in user participant set T, w s (N) is the ecological water use benefit of water users in the initial participant set N;

[0016] S22: Based on the benefit model of ecological water use, the Shapley function of each water user i in the process of ecological water use scheduling is established;

[0017]

[0018] in, is the Shapley value of water user i under the income distribution v condition, T\i is the set of user participants excluding water user i, j is the water user number in the user participant set T\i, s j is the probability of water user j using ecological water, e j is the ecological water allocation of water user j;

[0019] S23: Establish the allocation function of ecological water consumption and benefits based on the total amount of water x(T+N) that can be used for ecological water consumption in the water transfer study area and the benefit coefficient b(i) generated by the ecological water consumption per unit of water user i;

[0020]

[0021] Among them, B(T+N) is the net benefit coefficient after the initial participant set N is merged with the user participant set T, C(T+N) is the upper limit of ecological water consumption after the initial participant set N is merged with the user participant set T, c(i) is the upper limit of ecological water consumption of water user i, t is the number of water users in the user participant set T, p(i,(T+N)) is the probability that water user i uses ecological water after the initial participant set N is merged with the user participant set T, and A(i) is the ecological water consumption reallocated by water user i;

[0022] S24: Use the distribution function to calculate the profit distribution v after the initial participant set N and the user participant set T are combined, input into the Shapley function, and based on the set Shapley value Calculate the ecological water allocation E of each water user i after the initial participant set N is combined with the user participant set T i ;

[0023] S25: Based on the calculated ecological water allocation E i Dispatch ecological water to water user i in the water diversion study area.

[0024] Furthermore, the ecological benefit coefficient S i The calculation method is:

[0025]

[0026] Among them, u is the ecological consumption path of water user i in the process of using ecological water, δ u is the ecological water consumption of ecological consumption path u, α u is the ecological benefit coefficient of ecological consumption path u, and U is the number of ecological consumption paths of water user i.

[0027] Further, calculate the ecological pollution coefficient X i The method is;

[0028]

[0029] Among them, β u is the ecological pollution coefficient of ecological consumption path u.

[0030] Further, step S5 includes:

[0031] S51: Construct the ecological water allocation E used by water user i i Ecological benefit model in the process;

[0032]

[0033] Among them, γ u is the pollution emission coefficient, P i is the permissible pollution emission, λ i is the weight coefficient of ecological benefit control;

[0034] S52: According to the ecological benefit model, set the optimal value of the ecological benefit coefficient ΔS max , input into the ecological benefit model, and optimize the ecological consumption path of water user i in the process of using ecological water.

[0035] The beneficial effects of the present invention are as follows: the present invention targets prominent issues of ecological governance, solves the defect of imbalance between ecological benefits and ecological pollution in the process of ecological water diversion, and based on the theory of ecological benefit optimization, rationally diverts ecological water to different water users in the water diversion research area, and optimizes the ecological consumption path of each water user in the process of consuming ecological water, abandons the ecological water consumption path with high ecological pollution, and retains the ecological water consumption path with low ecological pollution, to ensure an efficient, equal and sustainable ecological water allocation optimization model to meet the ecological water resource needs of the present and future generations. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a flow chart of the water diversion method based on the balance between ecological water use benefits and pollution. DETAILED DESCRIPTION

[0037] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0038] like Figure 1 As shown, a water transfer method based on the balance between ecological water use benefits and pollution includes the following steps:

[0039] S1: Determine the water transfer study area, obtain water users in the water transfer study area, and extract water users who are currently using ecological water as the initial participant set N, N = (1, 2, ..., n), n is the number of water users in the initial parameter set N.

[0040] The initial participant set N includes water users who are currently using ecological water. In the process of scheduling ecological water, for new water users who have just started to use ecological water, a part of the ecological water needs to be allocated to the new users, so as to maximize the benefits of ecological water use. In this process, the allocatable ecological water consumption of old users may be reduced, or the remaining ecological water consumption in the water transfer study area may be directly transferred.

[0041] S2: Establish the benefit model of ecological water use and the Shapley function of each water user i in the process of ecological water use scheduling. Based on the allocation function of ecological water use and benefits, calculate the ecological water allocation E for each water user i i ; Step S2 specifically includes:

[0042] S21: The probability s of different water users using ecological water in the water use process i , and the corresponding ecological water allocation e i Establish a benefit model for ecological water use in the process of ecological water diversion;

[0043]

[0044] Among them, v(.) is the benefit distribution function, s1 is the probability of a water user using ecological water, i is the number of the water user, e 1 is the ecological water allocation for one water user, w s (1) is the ecological water use benefit of a water user, w s (1,2) is the ecological water use benefit of the two water users, e 1 、e 2 is the ecological water allocation of the two water users, s2 and s1 are the probabilities of the two water users using ecological water, T is the set of user participants who newly use ecological water in the process of ecological water diversion, and w s (T) is the ecological water use benefit of water users in user participant set T, w s (N) is the ecological water use benefit of water users in the initial participant set N;

[0045] S22: Based on the benefit model of ecological water use, the Shapley function of each water user i in the process of ecological water use scheduling is established;

[0046]

[0047] in, is the Shapley value of water user i under the income distribution v condition, T\i is the set of user participants excluding water user i, j is the water user number in the user participant set T\i, s j is the probability of water user j using ecological water, e j is the ecological water allocation of water user j;

[0048] S23: Establish the allocation function of ecological water consumption and benefits based on the total amount of water x(T+N) that can be used for ecological water consumption in the water transfer study area and the benefit coefficient b(i) generated by the ecological water consumption per unit of water user i;

[0049]

[0050]

[0051] Among them, B(T+N) is the net benefit coefficient after the initial participant set N is merged with the user participant set T, C(T+N) is the upper limit of ecological water consumption after the initial participant set N is merged with the user participant set T, c(i) is the upper limit of ecological water consumption of water user i, t is the number of water users in the user participant set T, p(i,(T+N)) is the probability that water user i uses ecological water after the initial participant set N is merged with the user participant set T, when ecological water is used, p(i,(T+N))=1, when ecological water is not used, p(i,(T+N))=0, A(i) is the ecological water consumption reallocated by water user i;

[0052] S24: Use the distribution function to calculate the profit distribution v after the initial participant set N and the user participant set T are combined, input into the Shapley function, and based on the set Shapley value Calculate the ecological water allocation E of each water user i after the initial participant set N is combined with the user participant set T i ;

[0053] S25: Based on the calculated ecological water allocation E i Dispatch ecological water to water user i in the water diversion study area.

[0054] Based on the principle of fairness, the available ecological water resources in the water transfer study area are effectively allocated to each water user; secondly, water users use the initial shared water volume to determine the water use group to obtain more net benefits; finally, water users form new water use groups to obtain the maximum net benefits. In this process, the Shapley function is used to redistribute the net benefits among water users. On the basis of considering the different groups of water users participating, the model maximizes the comprehensive benefits of regional ecological water use by allocating ecological water resources in the water transfer study area.

[0055] S3: According to the ecological water allocation E i Calculate the ecological benefit coefficient S of the environment during ecological water consumption i ; Ecological benefit coefficient S i The calculation method is:

[0056]

[0057] Among them, u is the ecological consumption path of water user i in the process of using ecological water, δ u is the ecological water consumption of ecological consumption path u, α u is the ecological benefit coefficient of ecological consumption path u, and U is the number of ecological consumption paths of water user i.

[0058] S4: Calculate the ecological pollution coefficient X according to the pollution emission coefficient of water user i in the process of using ecological water. i ; Calculate the ecological pollution coefficient X i The method is;

[0059]

[0060] Among them, β u is the ecological pollution coefficient of ecological consumption path u.

[0061] During the process of ecological water diversion, sometimes the ecological consumption path causes far more pollution to the ecology than the ecological benefits. For example, the ecological water diversion route is long or requires the construction of special canals. It takes a lot of energy to drive the ecological water to its destination. The energy waste generated during the driving process will pollute or destroy the local ecology and have a negative impact on the local ecology.

[0062] S5: Construct an ecological benefit model and set the optimal value of the ecological benefit coefficient ΔS max , optimize the ecological consumption path of water user i in the process of using ecological water. Step S5 specifically includes:

[0063] S51: Construct the ecological water allocation E used by water user i i Ecological benefit model in the process;

[0064]

[0065] Among them, γ u is the pollution emission coefficient, P i is the permissible pollution emission, λ i is the weight coefficient of ecological benefit control;

[0066] S52: According to the ecological benefit model, set the optimal value of the ecological benefit coefficient ΔS max , input into the ecological benefit model, and optimize the ecological consumption path of water user i in the process of using ecological water.

[0067] The present invention aims at the outstanding problems of ecological governance and solves the defect of imbalance between ecological benefits and ecological pollution in the process of ecological water diversion. Based on the theory of ecological benefit optimization, the present invention reasonably diverts ecological water to different water users in the water diversion research area, optimizes the ecological consumption path of each water user in the process of consuming ecological water, abandons the ecological water consumption path with great ecological pollution, and retains the ecological water consumption path with small ecological pollution, so as to ensure an efficient, equal and sustainable ecological water allocation optimization model to meet the ecological water resource needs of the present and future generations.

Claims

1. A water transfer method based on the balance between ecological water use benefits and pollution, characterized in that: The following steps are involved: S1: Determine the water transfer study area, obtain water users in the water transfer study area, and extract water users who are currently using ecological water as the initial participant set N, N = (1, 2, ..., n), n is the number of water users in the initial parameter set N; S2: Establish the benefit model of ecological water use and the Shapley function of each water user i in the process of ecological water use scheduling. Based on the allocation function of ecological water use and benefits, calculate the ecological water allocation E for each water user i i ; S3: According to the ecological water allocation E i Calculate the ecological benefit coefficient S of the environment during ecological water consumption i ; S4: Calculate the ecological pollution coefficient X according to the pollution emission coefficient of water user i in the process of using ecological water. i ; S5: Construct an ecological benefit model and set the optimal value of the ecological benefit coefficient ΔS max , optimize the ecological consumption path of water user i in the process of using ecological water.

2. The water transfer method based on ecological water use benefits and pollution balance according to claim 1 is characterized in that: The step S2 comprises: S21: The probability s of different water users using ecological water in the water use process i , and the corresponding ecological water allocation e i Establish a benefit model for ecological water use in the process of ecological water diversion; Among them, v(.) is the benefit distribution function, s1 is the probability of a water user using ecological water, i is the number of the water user, e 1 is the ecological water allocation for one water user, w s (1) is the ecological water use benefit of a water user, w s (1,2) is the ecological water use benefits of the two water users, e 1 、e 2 is the ecological water allocation of the two water users, s2 and s1 are the probabilities of the two water users using ecological water, T is the set of user participants who newly use ecological water in the process of ecological water diversion, and w s (T) is the ecological water use benefit of water users in user participant set T, w s (N) is the ecological water use benefit of water users in the initial participant set N; S22: Based on the benefit model of ecological water use, the Shapley function of each water user i in the process of ecological water use scheduling is established; in, is the Shapley value of water user i under the income distribution v condition, T\i is the set of user participants excluding water user i, j is the water user number in the user participant set T\i, s j is the probability of water user j using ecological water, e j is the ecological water allocation of water user j; S23: Establish the allocation function of ecological water consumption and benefits based on the total amount of water x(T+N) that can be used for ecological water consumption in the water transfer study area and the benefit coefficient b(i) generated by the ecological water consumption per unit of water user i; Among them, B(T+N) is the net benefit coefficient after the initial participant set N is merged with the user participant set T, C(T+N) is the upper limit of ecological water consumption after the initial participant set N is merged with the user participant set T, c(i) is the upper limit of ecological water consumption of water user i, t is the number of water users in the user participant set T, p(i,(T+N)) is the probability that water user i uses ecological water after the initial participant set N is merged with the user participant set T, and A(i) is the ecological water consumption reallocated by water user i; S24: Use the distribution function to calculate the profit distribution v after the initial participant set N and the user participant set T are combined, input into the Shapley function, and based on the set Shapley value Calculate the ecological water allocation E of each water user i after the initial participant set N is combined with the user participant set T i ; S25: Based on the calculated ecological water allocation E i Dispatch ecological water to water user i in the water diversion study area.

3. The water transfer method based on ecological water use benefits and pollution balance according to claim 1 is characterized in that: The ecological benefit coefficient S i The calculation method is: Among them, u is the ecological consumption path of water user i in the process of using ecological water, δ u is the ecological water consumption of ecological consumption path u, α u is the ecological benefit coefficient of ecological consumption path u, and U is the number of ecological consumption paths of water user i.

4. The water transfer method based on ecological water use benefits and pollution balance according to claim 1 is characterized in that: The calculation of ecological pollution coefficient X i The method is; Among them, β u is the ecological pollution coefficient of ecological consumption path u.

5. The water transfer method based on ecological water use benefits and pollution balance according to claim 1 is characterized in that: The step S5 comprises: S51: Construct the ecological water allocation E used by water user i i Ecological benefit model in the process; maxΔS=λ1S i -(1-l i )X i Among them, γ u is the pollution emission coefficient, P i is the permissible pollution emission, λ i is the weight coefficient of ecological benefit control; S52: According to the ecological benefit model, set the optimal value of the ecological benefit coefficient ΔS max , input into the ecological benefit model, and optimize the ecological consumption path of water user i in the process of using ecological water.

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