Compensation calculation method for reservoir water user equity influence based on reservoir capacity zoning control

Abstract

The present application relates to a kind of water resource management methods.The purpose is to provide the water reservoir water user equity influence compensation calculation method based on reservoir capacity zoning management and control, to solve the water resource management and influence compensation problem that water reservoir faces when undertaking multiple water supply tasks, including the following steps:1, according to the design function of water reservoir, using long series water resource supply and demand simulation model to calculate the supply and demand condition of each design water user, and the multi-year average guarantee water volume of each design water user is counted;2, based on the new water demand of water reservoir, according to the order of life, production and ecological water supply, the water supply control rules of each type of water user based on reservoir capacity zoning are demarcated;3, based on the water supply control rules of reservoir capacity zoning, the multi-year average guarantee water volume of design water user under long series condition is analyzed and counted, and the multi-year average reduced guarantee water volume of design water user is approved;4, the loss of unit water shortage to design water user is approved, and the unit water consumption compensation amount of new user is determined in combination with the water consumption of new water user.

Description

TECHNICAL FIELD

[0001] The present application relates to a water resource management method, in particular to a reservoir water user right interest influence compensation calculation method based on reservoir capacity zoning control. BACKGROUND

[0002] Water resources are basic natural resources and strategic economic resources, and are the controlling elements of ecological environment. For a long time, China's economic and social development has paid a high price for water resources and water environment, and the economic and social development has occupied the water for ecological environment, so it is urgent to strengthen the use control. At the same time, with the rapid development of economic society, the water use conflicts between life, agriculture, industry and other industries will become increasingly prominent, which requires that the water use control must be strengthened, and the water use demand of various industries must be coordinated to support industrialization, urbanization and agricultural modernization with water resource conservation and sustainable use. The government at all levels has put forward specific requirements for space development control, water resource use right use control and water resource use control, among which the right interest compensation is an important means to ensure the smooth implementation of water resource use control.

[0003] Reservoirs are the main carriers of high-quality water resources and the important water sources for economic and social water use. There are more than 98,000 reservoirs in China, of which more than 4,000 are large and medium-sized reservoirs. With the economic and social development, the reduction of irrigation area downstream of the reservoir and the increase of demand for high-quality water resources, the original design of the reservoir mainly for irrigation function has gradually changed to bear the functions of water supply, irrigation, ecology and other functions, which brings certain water conflicts and contradictions. Therefore, the development and utilization of water resources should first meet the water demand of urban and rural residents, and also consider the needs of agriculture, industry, ecology, environment and navigation. In order to orderly coordinate the water supply order of various water uses and protect the legal rights and interests of the original water users, it is necessary to implement water resource use control and provide a reservoir water user right interest influence compensation calculation method, so as to orderly coordinate, solve the conflicts and contradictions existing in the reservoir control operation according to law, protect the legal rights and interests of various water users according to law, realize the reasonable allocation and efficient use of water resources, and provide replicable and generalizable experience and methods for similar reservoir projects. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings of the prior art, and to provide a reservoir water user right interest influence compensation calculation method based on reservoir capacity zoning control, to solve the water resource control and influence compensation problems faced by the reservoir when bearing multiple water supply tasks.

[0005] In order to solve the above technical problems, the technical scheme provided by the present application is: a reservoir water user right interest influence compensation calculation method based on reservoir capacity zoning control, comprising the following steps:

[0006] Step 1, according to the water reservoir design function, using long series water resources supply and demand simulation model to calculate the supply and demand status of each design water user, and to count the multi-year average guarantee water quantity of each design water user, which is used as the initial water right of the design water user;

[0007] Step 2, based on the new water demand of the reservoir, according to the order of life, production and ecological water supply, the supply and control rules of each type of water user based on the reservoir capacity zoning are drawn, which is used as the basis for water resources use control;

[0008] Step 3, based on the supply and control rules of the reservoir capacity zoning, the multi-year average guarantee water quantity of the design water user under the long series condition is analyzed and counted, and the multi-year average reduced guarantee water quantity of the design water user is determined, which is used as the loss amount of the initial water right of the design water user;

[0009] Step 4, the loss of the design water user caused by unit water shortage is determined by the economic benefit method of unit water supply, and the unit water consumption compensation amount of the new water user is determined combined with the water consumption of the new water user, which is used as the basis for compensating the initial rights and interests of the design water user affected by the new water user.

[0010] Step 1:

[0011] (1) The calculation model of the multi-year average guarantee water quantity of each design water user is:

[0012]

[0013] In the formula: B s (i) is the multi-year average guarantee water quantity of the design i water user; G s (i,j,t) is the supply water quantity of the design i water user j year t period; i is the number of design water users; j is the number of years of long series water resources supply and demand analysis; t is the number of water resources supply and demand analysis periods in a year; m is the total number of long series water resources supply and demand analysis years; n is the total number of long series water resources supply and demand analysis periods;

[0014] (2) The calculation model of the supply water quantity of each design water user is:

[0015] G s (i,j,t) = min(X s (i,j,t), V(j,t) - V min (j,t) - G s (i-1,j,t))

[0016] In the formula: X s (i,j,t) is the water demand of the design i water user j year t period; V(j,t) is the reservoir water storage quantity j year t period; V min is the reservoir capacity corresponding to the water intake water level of the water user.

[0017] (3) The water balance model of the reservoir is:

[0018]

[0019] In the formula: q(j,t) is the inflow of water into the reservoir project during time period t in year j; I(j,t) is the water loss of the reservoir project during time period t in year j; l is the number of designed water users.

[0020] Step 2:

[0021] (1) The method for determining the water supply control water level for water users is as follows:

[0022] H i (t)=min(h i (1,t), h i (2,t)...h i (j,t)),j=m

[0023] Where: H i (t) represents the water level controlled by user i during time period t; h i (j,t) represents the reservoir water level corresponding to the reservoir capacity in the supply and demand analysis of water user i during the period t in year j.

[0024] (2) The method for determining the reservoir water level is:

[0025] h i (j,t)=f(V i (j,t))

[0026] In the formula: V i (j,t) represents the reservoir capacity of user i during the period t in year j; the reservoir water level is determined based on the reservoir water level-capacity relationship curve function.

[0027] (3) The method for determining the reservoir capacity is:

[0028]

[0029] In the formula: V max To maximize the storage capacity of the reservoir; The water supply volume for new user k during the period t in year j.

[0030] (4) The method for determining the water supply volume for each new water user is as follows:

[0031]

[0032] In the formula: For new user k, the water demand during period t in year j;

[0033] (5) Reservoir capacity zoned water supply control rules:

[0034] Using the water supply control levels of each water user, and in conjunction with the upper and lower limits of reservoir water storage (generally the flood control limit and the dead storage level), draw an n+2 line n+1 zone reservoir water level control map; each water user manages the use of water resources according to the area where the current reservoir water level is located. When the water level is above its own water supply control level, water can be supplied to water users normally; when the water level is below its own water supply control level, water supply should be restricted.

[0035] Step 3:

[0036] (1) The designed water loss for water users is:

[0037] S s (i)=B s (i)-B x (i)

[0038] In the formula: S s (i) Design the water loss for user i; B x (i) Design the average annual water supply guarantee for i water users under the current management rules.

[0039] (2) The average guaranteed water volume for water users over many years based on the control rules is:

[0040]

[0041] In the formula: B x (i) Design the average guaranteed water volume for user i over many years under the control rules; G x (i,j,t) represents the designed water supply volume for user i during time period t in year j under the control rules; i represents the designed number of users.

[0042] (3) The water supply volume for water users based on the control rules is:

[0043] G x (i,j,t)=min(X x (i,j,t),V(j,t)-V min -G x (i-1,j,t))

[0044] In the formula: X x (i,j,t) represents the designed water demand of user i during period t in year j; V(j,t) represents the reservoir's water storage capacity during period t in year j; V min The reservoir capacity corresponds to the water level at the water intake of the water user.

[0045] Step 4:

[0046] (1) The formula for calculating the water shortage loss of the designed water user unit is as follows:

[0047]

[0048] In the formula: SS s (i) X represents the economic loss per unit of water shortage for the designed water user. x (i) Economic benefits generated under the premise of ensuring water supply for design water users.

[0049] (2) The formula for calculating the water consumption compensation amount for new water users is as follows:

[0050]

[0051] In the formula: BC x (k) represents the compensation amount for the unit water consumption of new user k, W x (k) represents the average guaranteed water volume for new water users (k) over multiple years under the current management rules. The number of years of water use for newly approved water users is used as the basis for the compensation period.

[0052] The beneficial effects of this invention are

[0053] This invention presents a method for calculating compensation for the impact on the rights and interests of reservoir water users based on reservoir capacity zoning management. This method is grounded in the design and current management practices of reservoir water resources systems. It involves three steps: defining the initial water rights of reservoir water users, controlling the water usage order of users, and verifying the compensation for the impact on rights and interests. This invention can systematically resolve water resource supply and demand contradictions and disputes arising from historical reasons and socio-economic development in reservoirs, providing a solution for the rational allocation and efficient utilization of water resources. Attached Figure Description

[0054] Figure 1 This is a flowchart of the method for calculating compensation for the impact on the rights and interests of reservoir water users based on reservoir capacity zoning management, as described in this invention. Detailed Implementation

[0055] Example 1

[0056] like Figure 1 As shown, based on the present invention "Calculation Method for Compensation of Reservoir Water Users' Rights and Interests Based on Reservoir Capacity Zoning Management", taking Reservoir A as an example, the compensation amount is calculated by using the reservoir water users' rights and interests impact compensation method described in the present invention for the impact behavior on water users' rights and interests.

[0057] (1) Investigate and collect basic information about reservoir A.

[0058] The average annual precipitation in Reservoir A is 1749 mm, and the average annual water resources are 151.77 million m³. 3 The annual water resources volume in 90% of the hydrological years is 85.34 million cubic meters. 3 The designed annual water demand for agricultural water users under a 90% rainfall frequency is 43.66 million m³. 3 The annual water demand of newly added domestic water users is 43.9 million cubic meters. 3The total water demand is 87.56 million cubic meters. 3 The water supply and demand contradiction of Reservoir A, a type of reservoir with a hydrological year of 90%, is becoming increasingly prominent.

[0059] (2) According to step 1 of the present invention, based on the design function of reservoir A as agricultural irrigation, a long-term water resource supply and demand simulation model is used to calculate the supply and demand situation of the designed agricultural water users, and the average guaranteed water volume of the designed agricultural water users over many years is statistically analyzed, thereby serving as the initial water rights of the designed agricultural water users. Specifically, as follows:

[0060] ① Supply and demand analysis function

[0061] The method described in step 1 of this invention is used to construct a calculation model for the water supply volume of each designed water user. The model function and constraints are as follows:

[0062] Model function: G s (i,j,t)=min(X s (i,j,t),V(j,t)-V min -G s (i-1,j,t))

[0063] Constraints:

[0064] In the formula: X s (i,j,t) represents the designed water demand of user i during period t in year j; V(j,t) represents the reservoir's water storage capacity during period t in year j; V min q(j,t) represents the reservoir capacity corresponding to the water intake level of the water user; q(j,t) represents the inflow of water into the reservoir project during time period t in year j; I(j,t) represents the water loss of the reservoir project during time period t in year j; and l represents the number of designed water users.

[0065] ② Analysis of the average guaranteed water volume for water users over many years

[0066] Using the supply and demand analysis function described above, the average annual guaranteed water volume for agricultural water users in this case is calculated to be 32.19 million m³. 3 This will be used as the initial water rights for agricultural water users.

[0067] (3) According to step 2 of the present invention, in this case, the new water user of Reservoir A is for domestic use. Based on the new water demand of the reservoir, and in accordance with the order of domestic and industrial water supply, reservoir capacity zoning control rules are formulated for various water users, which serve as the basis for water resource use control. The specific steps are as follows:

[0068] ① Method for formulating warehouse capacity zoning control rules

[0069] Based on the water level calculation method for water supply control in step 2 of this invention, the formula is as follows:

[0070] H i(t)=min(h i (1,t), h i (2,t)...h i (j,t)),j=m

[0071] Where: H i (t) represents the water level controlled by user i during time period t; h i (j,t) represents the reservoir water level corresponding to the reservoir capacity in the supply and demand analysis of water user i during the period t in year j.

[0072] Methods for determining reservoir water level

[0073] h i (j,t)=f(V i (j,t))

[0074] In the formula: V i (j,t) represents the reservoir capacity of user i during the period t in year j; the reservoir water level is determined based on the reservoir water level-capacity relationship curve function.

[0075] Methods for determining reservoir capacity

[0076]

[0077] In the formula: V max To maximize the storage capacity of the reservoir; The water supply volume for new user k during the period t in year j.

[0078] Method for determining the water supply volume for each new water user

[0079]

[0080] In the formula: For new user k, the water demand during period t in year j;

[0081] Based on the water supply control rule formulation method in step 2 of this invention, the specific details are as follows:

[0082] Using the water supply control levels of each water user, and combining the upper and lower limits of reservoir water storage (generally the flood control limit and dead storage level), a reservoir water level control map of n+2 lines and n+1 zones is drawn. Each water user manages water resource usage according to the area where the current reservoir water level is located. When the water level is above its own water supply control level, water can be supplied to water users normally; when the water level is below its own water supply control level, water supply should be restricted.

[0083] ② Warehouse capacity zoning control rules

[0084] Based on the water supply control rule formulation method in step 2 of this invention, the management and control rules for water users of reservoir A are formulated as follows:

[0085] i. When the capacity of Reservoir A is below the agricultural water supply line and above the domestic water supply line, Reservoir A can supply water for both domestic and agricultural use;

[0086] ii. When the reservoir capacity of Reservoir A is below the domestic water supply line and above the dead storage capacity, Reservoir A will only supply domestic water and will no longer supply water to agriculture.

[0087] Table 1 Reservoir A Capacity Zoning Control Line (Unit: 10,000 m³) 3

[0088]

[0089]

[0090] (4) According to step 3 of the present invention, based on the water resource use control of reservoir A, after the new water user takes water for domestic use, analyze and statistically analyze the average guaranteed water volume of the designed agricultural water user over many years under long-term conditions, and determine the average reduced guaranteed water volume of the designed agricultural water user over many years, and use this as the initial water right loss of the designed agricultural water user.

[0091] ① Calculation method for water loss by design users

[0092] Based on step 3 of this invention, the method for calculating the initial water right loss of water users is as follows:

[0093] 1) Initial water right loss for design water users

[0094] S s (i)=B s (i)-B x (i)

[0095] In the formula: S s (i) Design the initial water right loss for user i; B x (i) Design the average annual water supply guarantee for i water users under the current management rules.

[0096] 2) Average guaranteed water volume for water users over many years based on management and control rules

[0097]

[0098] In the formula: B x (i) Design the average guaranteed water volume for user i over many years under the control rules; G x (i,j,t) represents the designed water supply volume for user i in year j during period t under the control rules; i represents the number of designed users; j represents the number of years in the long-term water supply and demand analysis; and t represents the number of periods in the annual water supply and demand analysis.

[0099] 3) Water supply to water users based on management rules

[0100] G x(i,j,t)=min(X x (i,j,t),V(j,t)-V min -G x (i-1,j,t))

[0101] In the formula: X x (i,j,t) represents the designed water demand of user i during period t in year j; V(j,t) represents the reservoir's water storage capacity during period t in year j; V min The reservoir capacity corresponds to the water level at the water intake of the water user.

[0102] ② Initial water right loss for design water users

[0103] Based on the above-mentioned method for calculating water loss for water users designed in this invention, the average annual guaranteed water volume for agricultural water users resulting from new water users' domestic water intake is 30.29 million m³. 3 Comparing the initial water rights loss of new water users before and after water intake, the initial water rights loss for agricultural water users is estimated at 1.9 million m³. 3 .

[0104] (5) According to step 4 of the present invention, the economic benefits generated by the unit water supply are used to determine the loss of the design water user by the unit water shortage. The compensation amount and compensation period for the unit water supply of the new user are determined by combining the water consumption and water use period of the new user. This serves as the basis for the compensation of the rights and interests of the design water user affected by the new user.

[0105] ① Calculation method for compensation standards for new water users affecting the rights and interests of designed water users

[0106] 1) Calculation of water shortage losses for design water user units

[0107]

[0108] In the formula: SS s (i) X represents the economic loss per unit of water shortage for the designed water user. x (i) Economic benefits generated under the premise of ensuring water supply for design water users.

[0109] 2) Calculation of compensation amount for water consumption of new water users

[0110]

[0111] In the formula: BC x (k) represents the compensation amount for the unit water consumption of new user k, W x (i) represents the average guaranteed water volume for new user k over the years under the current control rules.

[0112] ② The new water user affects the compensation standard for the rights and interests of the designed water users

[0113] According to local statistical yearbooks, the economic benefits generated under the design of ensuring agricultural water supply for water users are 229 million yuan, with an average guaranteed water volume of 32.19 million cubic meters per year. 3 Therefore, the water shortage loss per unit of agricultural user in the design is calculated to be 7.13 yuan / m³. 3 .

[0114] Based on step 3 above, the addition of new domestic water users results in an initial agricultural water rights loss of 1.9 million m³ for the designed water users. 3 Based on the calculation formula for the compensation amount per unit of water consumption for new water users, the average guaranteed water volume for new residential water users over many years is 43.9 million m³. 3 The compensation amount for the unit water consumption of the newly designated domestic water users to the agricultural water users is 0.31 yuan / m³. 3 The water usage period for new residential water users is 20 years, therefore the corresponding compensation period is 20 years.

Claims

1. A method for calculating compensation for the influence of reservoir water user rights based on reservoir capacity zoning management, characterized in that, The method comprises the following steps: Step 1, according to the reservoir design function, using long series water resources supply and demand simulation model to calculate the supply and demand status of each design water user, and the multi-year average guarantee water quantity of each design water user is counted, which is used as the initial water right of the design water user; specifically including: (1) the calculation model of the multi-year average guarantee water quantity of each design water user is: ； In the formula, B s (i) is the multi-year average guaranteed water quantity of the design water user; G s (i,j,t) is the water supply quantity of the design water user j in the t period of the year i; i is the number of design water users; j is the number of years of long series water resources supply and demand analysis; t is the number of time periods of water resources supply and demand analysis in a year; m is the total number of years of long series water resources supply and demand analysis; and n is the total number of time periods of long series water resources supply and demand analysis. (2) the calculation model of the water supply quantity of each design water user is: G s (i,j,t) = min(X s (i,j,t),V(j,t)-V min -G s (i-1,j,t)) In the formula: X s (i,j,t) is the water demand of the water user j in the period t of the year; V(j, t) is the water storage of the reservoir j in the period t of the year; V min is the reservoir storage corresponding to the water level of the water intake of the water user. (3) the reservoir water balance model is: ； In the formula, q(j,t) is the water inflow of the reservoir project in j year t period; I(j,t) is the water loss of the reservoir project in j year t period; and l is the number of design water users; Step 2, based on the new water demand of the reservoir, according to the order of life, production and ecological water supply, the water supply control rules of each type of water user based on reservoir capacity zoning are formulated, which are used as the basis for water resources use control; specifically including: (1) the method for determining the water supply control water level of the water user is: H i (t) = min(h i (1,t), h i (2,t)...h i (j,t)), j = m In the formula: H i (t) is the water level controlled by water user i in time period t; h i (1,t) is the water level corresponding to the reservoir capacity analyzed by water user i in time period t of year j; (2) the method for determining the reservoir water level is: h i (j,t) = f(V i (j,t)) In the formula, V i (j, t) is the reservoir storage of water user j in year t period; the reservoir water level is determined according to the reservoir water level-storage relationship curve function; (3) the method for determining the reservoir capacity is: ； In the formula, V max is the beneficial storage capacity of the reservoir; is the water supply quantity of new water user j in the t period of year (4) the method for determining the water supply quantity of each new water user is: ； In the formula: is the water demand of new water user j in period t of year k; (5) the reservoir capacity zoning water supply control rule: The n+2 line n+1 area reservoir water level control chart is drawn by using the water supply control water level of each water user combined with the upper and lower limit water level of the reservoir; each water user controls the water resources use according to the area where the current reservoir water level is located, and the water user can be normally supplied with water when being above the water supply control water level, and the water supply should be limited when the water user is below the water supply control water level; Step 3, based on the reservoir capacity zoning water supply control rule, the multi-year average guarantee water quantity of the design water user under long series conditions is analyzed and counted, and the multi-year average reduced guarantee water quantity of the design water user is approved, which is used as the loss quantity of the initial water right of the design water user.

2. The reservoir water user right interest influence compensation calculation method based on capacity zoning management according to claim 1, characterized in that, In the step 3, (1) the water loss quantity of the design water user is: S s (i) = B s (i) - B x (i) In the formula: S s (i) Design i water user loss water quantity; B x (i) Design i water user multi-year average guaranteed water quantity under the current management rules; (2) the multi-year average guarantee water quantity of the design water user based on the control rule is: ； In the formula, B x (i) is the multi-year average guaranteed water quantity of the water user under the design of the management and control rule; G x (i,j,t) is the water supply quantity of the water user j in the time period t of the year under the design of the management and control rule; i is the number of design water users; (3) the water supply quantity of the design water user based on the control rule is: G x (i,j,t) = min(X x (i,j,t), V(j,t) - V min -G x (i-1,j,t)) wherein: X x (i,j,t) is the water demand of water user j in year t of design i; V(j,t) is the storage of reservoir j in year t; V min is the reservoir storage corresponding to the water level of water user's intake.

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